Consulta: subjectFacets:"Ovary"
Registros recuperados: 58
Data/hora: 08/06/2024 02:06:00

FRUIT (PERICARP AND SEED) ONTOGENY OF SIDA SPECIES
Provedor de dados: 73
Autores: Muneratto,Junior C; Souza,Luiz A.
Fruits (pericarps and seeds) of the weedy species Sida rhombifolia L., S. urens L. and S. regnellii R. E. Fr. were analyzed structurally using light and scanning electron microscopy. The yellowish brown calyx is persistent on the mature fruit and consists of a crystalliferous hypodermis with U-shaped wall thickenings and homogeneous mesophyll. Fruits are schizocarpic, of the subtype coccarium, with a fibrous endocarp. Seeds are exotegmic and the embryos are clearly bent, with folded cotyledons. Structural features that are potentially significant to species' characterization are the structure of the ovary, the morphology of the mericarp apex, the pattern of the reticulate sclerenchymatous endocarp and the presence or absence of nonglandular trichomes in...
Tipo: Journal article
Palavras-chave: Pericarp; Seed; Malvaceae; Weedy species; Ovary.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432013000100006

Protein content and electrophoretic profile of fat body and ovary extracts from workers of Melipona quadrifasciata anthidioides (Hymenoptera, Meliponini)
Provedor de dados: 76
Autores: Oliveira,Vagner T. Paes de; Cruz-Landim,Carminda da.
Workers of Melipona quadrifasciata anthidioides (Lepeletier, 1836) develop their ovaries and lay eggs, therefore the production of vitellogenin is expected. In electrophoretic profiles only fat body extracts from nurse workers and ovary extracts from newly-emerged workers show protein with molecular mass similar to vitellogenin. However, an increase in the protein content was detected in forager fat body. This increase was attributed to storage of vitellogenin or other proteins in the previous phase and not discharged into the hemolymph or to an effect of the increased titre of juvenile hormone in this phase of worker life over the fat body functioning.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Stingless bees; Fat body; Ovary; Vitellogenin; Oogenesis.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000400010

Analise do gametofito feminino de Brachiaria brizantha atraves de seccoes de ovarios incluidos em Resina Spurr.
Provedor de dados: 14
Autores: CUNHA, A. M. C.; CARNEIRO, V. T. C.; ARAUJO, A. C. G.
bitstream/item/90711/1/2002.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Morfologia; Morphology; Ovary; Gametophyte; Female.; Planta.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/174562

The Nme gene family in fish
Provedor de dados: 5
Autores: Desvignes, T.; Fostier, A.; Fauvel, Christian; Bobe, J.
The Nme gene family, also known as Nm23 or NDPK, is a very ancient gene family that can be found in all kingdoms of life. In the late eighties, a gene of the Nme family, NME1, was identified as the first metastatic suppressor gene, resulting in a major interest for this family. Due to the complexity of the family, the need for a unified and evolutionary-supported gene nomenclature was recently stressed by the scientific community. Based on a complete evolutionary history study of the gene family in metazoans and vertebrates, a unified nomenclature was recently proposed and accepted by gene nomenclature consortia. In addition to its well-documented role in tumor metastasis, members of the Nme family are also involved in a wide variety of cellular and...
Tipo: Text
Palavras-chave: Nm23; NDPK; RP2; Teleost; Oocyte; Ovary.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00133/24466/22504.pdf

Molecular cloning of flounder Xp18, a newly identified highly conserved protein mainly expressed in the ovary
Provedor de dados: 5
Autores: Cachot, Jerome; Bultelle, Florence; Drouot, Laurent; Galgani, Francois; Frebourg, Thierry; Leboulenger, François; Danger, Jean-michel.
Screening of a flounder ovary cDNA library with a rainbow trout p53 probe led to the isolation of a p53-unrelated cDNA encoding an unknown 161 amino acid protein. In view of its apparent molecular weight and yet unknown function, the deduced protein was named Xp18. Corresponding orthologous cDNAs or expressed sequence tags have been identified in several species including human, rodents, bovine, chicken and zebrafish and a related cDNA has also been isolated in the fruit fly. Deduced amino acid sequences appeared to be extremely well conserved throughout vertebrate evolution. Structure predictions suggested that Xp 18 may correspond to an integral protein comprising four transmembrane domains. The charged C-termini of all known vertebrate Xp18-like...
Tipo: Text
Palavras-chave: X chromosome; Brain; Ovary; Human; Teleostean; Platichthys flesus.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-756.pdf

Protective Effect of Caffeic Acid Phenethyl Ester (CAPE) on Ischemia­Reperfusion Injury in Rat Ovary
Provedor de dados: 77
Autores: Görkem,Ümit; Togrul,Cihan; Sahin,Izzet; Coskun,Bugra; Ozat,Mustafa; Güngör,Tayfun; Deveci,Engin.
The aim of this study was to investigate the effects of caffeic acid phenethyl ester (CAPE) as a prophylactic agent on ischemia/reperfusion (I/R) injury in the rat ovary. A total of 28 Wistar rats were divided into 4 equal groups: (I) sham, (II) ischemia, (III) ischemia + reperfusion, and (IV) IR + CAPE. In groups I and II, ovary torsion was not performed and no drug was administered. In group III, 1 hour of ischemia and 2 hours of reperfusion were performed and no drug was given. Ovarian tissue concentrations of malondialdehyde were significantly higher in the torsion and detorsion groups compared with the sham and Cape groups (P&lt;0.005). The detorsion group showed preantral ovarian follicles and luteal folicules around the blood vessels and positive...
Tipo: Journal article
Palavras-chave: Caffeic acid phenethyl ester; Ischemia­reperfusion injury; Ovary; Rat.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000100023

Ovarian Folliculogenesis in the Smallnose Fanskate Sympterygia bonapartii (Müller &amp;amp; Henle, 1841) (Chondrichthyes, Rajidae)
Provedor de dados: 77
Autores: Díaz-Andrade,M. C; Galíndez,E. J; López-Cazorla,A; Estecondo,S.
Chondrichthyes have become an important economic resource in the last decades, with Argentina as one of the countries that exploits more sharks and skates, even at levels that exceed de limits of many species. However, there is a scarce knowledge of the reproductive biology of this group, particularly from species inhabiting the Southern hemisphere. This work shows the most relevant facts during folliculogenesis in Sympterygia bonapartii. Results show that germinal cells are present in immature and maturing females. The most important facts that vary along de follicular development are the number of types and layers of follicular cells, the establishment of thin projections from the follicular cells and the degree of development of the thecae. Follicular...
Tipo: Journal article
Palavras-chave: Elasmobranchs; Reproduction; Ovary; Folliculogenesis; Sympterygia bonapartii.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100030

Does Diabetes Alter Immunolocalization of Galectin-1 and Galectin-3 in the Rat Ovary?
Provedor de dados: 77
Autores: Özdenoglu,Berna; Saraydin,Serpil Ünver.
Diabetes mellitus (DM), is a metabolic disease occurring via insulin secretion deficiency from the pancreas and/or an insufficiency of tissue response to insulin. The present study is intended to show of immunolocalizations of beta-galactose-binding proteins Galectin-1 and Galectin-3 in diabetic rat ovarium and their relationship with diabetes. In this study, 8 to 10-week-old, 250­300 g weighing 50 mature female rats were used, in order to establish diabetes mellitus in those animals, 60 mg/kg intravenous streptozotocin was injected to each animal. After death, diabetics and non-diabetics rats's routine tissue processing steps is done to rat ovarial tissues for immunohistochemical investigation. Strong expressions of Galectin-1 and Galectin-3 were observed...
Tipo: Journal article
Palavras-chave: Galectin-1; Galectin-3; Ovary; Diabetes; Rat.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200050

Endocrine Integration of Fetal Ovaries Grafted under Kidney Capsule of Unilaterally or Bilaterally Orchidectomized Male Hamster
Provedor de dados: 77
Autores: Luna,S. L; Peña,S. I; Cuevas,A. J; Brown,D. I.
Mammalian ovary development undergoes important changes during the perinatal period, moment when follicles are assembled and start to develop in a process not well known, involving endocrine and paracrine factors. In order to investigate the effect of two different hormonal environments on the early development of the ovary, we used an autologous transplant model in which Syrian hamster fetal ovaries were grafted under the kidney capsule of males hosts previously unilaterally or bilaterally orchidectomized. After 35 days of graft, ovaries and kidney parenchyme of the host male did not present signs of rejection. Ovaries contained primordial, primary follicles, secondary follicles and few tertiary follicles with morphological features similar to ovaries of...
Tipo: Journal article
Palavras-chave: Ovary; Folliculogenesis; Steroidogenesis; Ovarian graft; Hamster.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000400016

Cystadenocarcinoma Arising from Ovary in a Three Year Old Doberman Bitch
Provedor de dados: 77
Autores: Ajadi,A. Temitope; Antia,E. Richard; Akang,E. Effiong.
A three- year- old Doberman was presented with complaint of lethargy and weight- loss. Physical examination revealed a mass in the right abdomen. Laboratory abnormalities included anaemia, azotaemia and metabolic acidosis. Sonogram of the mass was an anaechoic area surrounded by hypoechoic tissue. The mass was located between the right kidney and ovary and showed papillary and tubular pattern of cystadenocarcinoma. Nephroureterectomy and ovariohysterectomy was performed; however bitch was euthanized owing to poor improvement, while necropsy of the left kidney revealed an end-stage kidney. It was concluded that the cystadenocarcinoma must have arisen secondary to a primary ovarian adenocarcinoma through stromal invasion.
Tipo: Journal article
Palavras-chave: Ovary; Cystadenocarcinoma; Doberman; Dog.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300055

The Female Reproductive System of Zearaja chilensis (Guichenot, 1848) (Chondrichthyes, Rajidae): Gametogenesis and Microscopic Validation of Maturity Criteria
Provedor de dados: 77
Autores: Wehitt,Anahí; Di Giacomo,Edgardo E; Galíndez,Elena J.
Chondrichthyans are extremely susceptible to overfishing due, among other things, to their reproductive adaptations. Basic knowledge of reproductive parameters is essential, both of ecological and for economic points of view. Zearaja chilensis is a valuable economic resource in South America. This work analyzes the microanatomy of female reproductive system, as well as the size of the onset of vitellogenesis. The material was fixed in Bouin and processed using routine histological techniques. Both ovaries are equally functional. Folliculogenesis depicts the same pattern of other Chondrichthyans. Follicles with different degrees of maturation coexist in mature animals, with the exception of oogonia, which were only found in immature individuals. Likewise,...
Tipo: Journal article
Palavras-chave: Elasmobranchs; Reproductive system; Ovary; Zearaja chilensis.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100049

Pineal Gland Plays a Role in Gonadal Development after Eyelids Separation in Puppies
Provedor de dados: 77
Autores: Abou-Easa,Khalil; El-Magd,Mohammed Abu; Tousson,Ehab; Hassanin,Amin; Shukry,Mustafa; Salama,Mohammed.
Several functional and morphological studies have been conducted on the pineal gland in many mammalian species; however, no published reports are available on the role of pineal gland on the gonadal development before and after eyelids separation in puppies. Therefore, this study aimed to trace the postnatal histo-morphological changes in the pineal gland and gonads of puppies before (2, 10 and 11 days old) and after (25, 35 and 40 days old) eyelids separation in an attempt to investigate the possible role of pineal gland on the gonadal development. In general, the differentiation of pineal cells, interstitial endocrine cells of testes and stromal ovarian cells coincides with the start of eyelids separation in puppies. Histological examination of stained...
Tipo: Journal article
Palavras-chave: Pineal; Testis; Ovary; Puppy; Eyelids separation.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100001

Ultrastructural Features of Ovary of the Female African Giant Rat (Cricetomys gambianus, Waterhouse) During Oestrous Cycle
Provedor de dados: 77
Autores: Akinloye,Adebayo Koyuum; Oke,Bankole Olusiji.
Fine structures of the ovary during the oestrous cycle in African giant rats (Cricetomys gambianus Waterhouse) were described in the present study. Ultrastructural features of the germinal epithelium and the medullar of the ovary were similar at different stages of the oestrous cycle. During mid proestrus, there was disorganization of the inner layer of the granulosa cells of secondary follicles to form the antrum. At late proestrus/early estrus, antrum formation had advanced and there was evidence of reorganization of granulosa cells. Fine structures of the ovary during mid estrus include follicles with variably shaped mitochondria, profiles of Golgi complexes and dense concentration of ribosomes. The theca interna shared similar ultrastructure with the...
Tipo: Journal article
Palavras-chave: Ultrastructure; Ovary; Oestrous Cyclei; African Giant Rat.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200030

Histological Seasonal Changes in Ovaries of Spotted Tinamous (Nothura maculosa Tinamidae, Temminck, 1815) Related to Gonadotrope Population
Provedor de dados: 77
Autores: Claver,Juan; Rosa,Juan M; Lombardo,Daniel M; Soñez,María C.
Nothura maculosa is a South American Tinamidae with a marked seasonal reproductive pattern. This work describes ovarían seasonal changes in this species related to gonadotrope (GTHs) population. Ovary and pituitary samples were collected monthly from adult birds during four annual periods. They were fixed in Bouin's solution and processed for light microscopy. The data of post-fixation gonadal weight were analysed using STATISTIX 4.0. Histological sections of the ovaries were stained with H/E, PAS and Goldner-Masson trichrome. Single and double immunostaining were applied on pituitary sections with anti-chicken-FSH and anti-chicken-LH antibodies. The samples were analysed in quarterly periods of the year, Pl: March-May (resting stage); P2: June-August...
Tipo: Journal article
Palavras-chave: Birds; Gonadotropes; Nothura maculosa; Ovary; Pituitary; Reproduction; Tinamidae.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200017

Morphology of the Phytophagous bug Platyscytus decempunctatus (Carvalho) (Heteroptera: Miridae)
Provedor de dados: 82
Autores: Pires,Evaldo M.; Ferreira,Paulo S.F.; Guedes,Raul N.C.; Serrão,José E.
Platyscytus decempunctatus Carvalho is a small mirid living throughout its life cicle plant Solanum cernuum Vell. (Solanaceae). The internal morphology of P. decempunctatus was studied and found that the female has a telotrophic ovary with three ovarioles in the right ovary and five in the left one. In the male reproductive trait there is a well developed tubular accessory gland. The phytophagous feeding habitat of P. decempunctatus was confirmed by the observations of chlorophyll pigments in the gut of all dissected specimens. The tubular salivary glands and the Malpighian tubules were also discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ovary; Testicules; Malphigian tubules; Salivary gland; Solanum cernuum.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000400004

Evaluation of egg morphology from ethanol preserved females of Anastrepha sp.2 aff. fraterculus (Diptera: Tephritidae)
Provedor de dados: 82
Autores: Selivon,Denise; Vretos,Christina; Perondini,André L.P.
Features of eggshell morphology in Anastrepha sp.2 aff. fraterculus were evaluated in mature ovariole ova dissected from females preserved in ethanol, and from ovaries of fresh killed females in comparison to that of freshly laid eggs. The characteristics of sculpturing as well as of internal structure of the chorion in oviposited eggs could be observed in both samples of mature ovariole ova. Ethanol preserved females may be used as a source of eggs for morphological studies allowing this kind of analysis to species whose eggs are not readily obtained.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chorion; Vitelline membrane; Ovary.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000300028

A case of intersex occurrence in Steindachneridion parahybae (Steindachner, 1877) (Siluriformes: Pimelodidae) under captivity condition: a cytogenetic and morphological study
Provedor de dados: 83
Autores: Honji,Renato M.; Caneppele,Danilo; Pandolfi,Matias; Nostro,Fabiana L. Lo; Moreira,Renata G.
ABSTRACT Little is known about reproductive biology of endangered Steindachneridion parahybae , a gonochoristic teleost species inhabiting the Paraíba do Sul River Basin, and herein is the first description of intersex in S. parahybae juvenile. The normal appearance of ovaries and testes in juvenile from the same lot of breeding were also described for comparison, even as cytogenetic analysis was performed in these juveniles. One specimen was a priori classified as female due to the macroscopic characteristic of ovaries, with small yellow oocytes, without fringes (a main characteristic of catfish male), and larger than testes; however the microscopic analysis revealed the presence of ovotestes, including the complete spermatogenesis. S. parahybae had...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Histology; Karyotype; Ovary; Ovotestes; Testicles.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000400206

Morphological analysis and description of the ovaries of female silky sharks, Carcharhinus falciformis (Müller &amp;amp; Henle, 1839)
Provedor de dados: 83
Autores: Rêgo,Mariana G.; Hazin,Fábio H. V.; Evêncio Neto,Joaquim; Oliveira,P. G. V.; Soares,Maria Goretti; Torres,Keilla Regina L. S.; Lana,Fernanda O.; Roque,Pollyana C. G.; Santos,Natália L.; Coelho,Rui.
This work aims to study the female reproductive tract of silky sharks, Carcharhinus falciformis, captured in the South and Equatorial Atlantic Ocean. Samples were collected between January 2008 and March 2010 through oceanic commercial vessels that targeted tuna and swordfish, with a total of 17 females collected. The methodologies followed for analyzing the ovaries of those females included both macroscopic and histological analysis. Macroscopically, it was possible to determine that the ovaries on these sharks is suspended by mesenteries in the anterior section of the body cavity, heavily irrigated by blood vessels, and contains a wide range of oocytes. Ovaries were found in three distinct maturational stages: Stage I (Immature), Stage II (Maturing) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Elasmobranchs; Histology; Maturity; Ovary; Reproduction.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000400815

The Differences Among Lines on Oviduct and Cumulative Follicle Weight in Laying Hens
Provedor de dados: 19
Autores: 三好, 俊三; 高橋, 洋明; ルック, キィウ　ミン; 口田, 圭吾; 光本, 孝次.
Palavras-chave: 卵管; 膨大部; 卵巣; 黄色卵胞; 採卵鶏; Oviduct; Magnum; Ovary; Follicle; Laying hen.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/444

Incidence of apoptotic cells after vitrification in canine ovarian tissues
Provedor de dados: 19
Autores: Hariya, Madoka; Suzuki, Hiroshi.
Although vitrification and follicular survival subsequent to xenotransplantation of canine ovarian tissues have been reported, the degree of cryoinjury after the vitrification has not yet been fully examined. Since cryoinjury after vitrification of ovaries has been reported in bovine and humans, this study evaluated canine ovarian tissues after vitrification by immunohistochemistry and TUNEL assay. Ovaries were collected from immature bitches. The ovarian tissue cubes were pretreated with 1 M DMSO. Subsequently, DAP 213 solution (2 M DMSO, 1 M acetamide, 3 M propylene glycol) was added. The cryotubes containing the ovarian tissues were placed on ice for 5 min, then plunged directly into liquid nitrogen. After warming with 0.25 M sucrose, cryopreserved...
Palavras-chave: Cryopreservation; Dog; Follicle; Ovary.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4535

Beneficial Effect of Hyperbaric Oxygen Therapy on the Follicular Survival in the Mouse Ovary after Transplantation
Provedor de dados: 19
Autores: HAYASHI, Satomi; ASANO, Tomoyoshi; KAKIZAKI, Ryujiro; SUZUKI, Hiroshi; 鈴木, 宏志.
A large proportion of follicles are lost during the initial ischemia that occurs after transplantation of ovarian tissues. Thus, the effect of hyperbaric oxygen therapy (HBO) on the follicular loss of ovarian tissues after transplantation was examined in mice. Ovarian slices from ICR mice were transplanted under the kidney capsule in ovariectomized ICR. Hyperbaric oxygen with 100% oxygen was initiated for 30 min at 2.5 atmospheres absolute immediately after transplantation, and this treatment was repeated at 48-h intervals for 2 weeks. The number of follicles was dramatically reduced at 2 weeks post transplantation. However, HBO was significantly effective in enhancing the survival of transplanted ovarian follicles. The survival rates of primordial and...
Palavras-chave: Hyperbaric oxygen; Mice; Ovary; Transplantation.
Ano: 2012
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3857

In Vivo Evidence that Local Cortisol Production Increases in the Preovulatory Follicle of the Cow
Provedor de dados: 19
Autores: ACOSTA, Tomas J.; TETSUKA, Masa; MATSUI, Motozumi; SHIMIZU, Takashi; BERISHA, Bajram; SCHAMS, Dieter; MIYAMOTO, Akio; 松井, 基純; 清水, 隆; 宮本, 明夫.
The aim of the present in vivo study was to monitor real-time fluctuations of cortisol (Cr) in the wall of preovulatory follicles using a microdialysis system (MDS) implanted in the theca layer as well as changes in ovarian venous plasma (OVP) and jugular venous plasma (JVP). Seven cows were superovulated using FSH and prostaglandin F2α injections. Dialysis capillary membranes were surgically implanted into the theca layer of mature follicles and connected to a microdialysis system. Fractions of the perfusates were collected from Day -1 (Day 0=LH surge) to Day 3. No difference in the concentrations of Cr between JVP and OVP was detected throughout the experiment. Circulating concentrations of Cr ranged from 20 to 35 ng/ml 8 h after surgery in ovulatory and...
Palavras-chave: Bovine; Cortisol; Follicle; Ovary; Ovulation.
Ano: 2005
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2980

Promotion of Ovarian Follicular Development by Injecting Vascular Endothelial Growth Factor (VEGF) and Growth Differentiation Factor 9 (GDF-9) Genes
Provedor de dados: 19
Autores: SHIMIZU, Takashi; 清水, 隆.
Ovarian follicular development in mammals is the complex process including endocrine, paracrine and autocrine. There is the development of four basic stages of ovarian follicles, i.e. the primordial, primary, secondary and tertiary or Graafian follicles. There are few blood vessels in the cortical area where primordial and primary follicles are assembled. The development of these follicles is stimulated by oocytes derived factor including growth differentiation factor 9 (GDF-9) or bone morphogenetic protein 15 (BMP-15). Porcine GDF-9 complementary DNA (cDNA) cloned, and then injected its gene into the ovary in gilts. The injection of porcine GDF-9 gene resulted in an increase in the number of primary, secondary and tertiary follicles, concomitant with a...
Palavras-chave: Follicle development; Gene injection; Growth differentiation factor 9 (GDF-9); Ovary; Vascular endothelial growth factor (VEGF).
Ano: 2005
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4059

Expression of Pin1, a peptidyl-prolyl isomerase, in the ovary of eCG/hCG-treated immature female mice.
Provedor de dados: 19
Autores: SHIMIZU, Takashi; AKIYAMA, Hirotada; ABE, Yasuyuki; SASADA, Hiroshi; SATO, Eimei; MIYAMOTO, Akio; UCHIDA, Takafumi; 清水, 隆; 宮本, 明夫.
Protein phosphorylation on certain serine or threonine residues preceding proline (Ser/Thr-Pro) is a pivotal signaling mechanism in diverse cellular processes. Pin1 is a highly conserved enzyme that isomerizes only the phosphorylated Ser/Thr-Pro bonds in certain proteins, thereby inducing conformational changes. Although much protein is phosphorylated in the ovary, the role of Pin1 in the ovary is still unknown. The purpose of this study is to investigate the effects of gonadotropins on protein and mRNA expression of Pin1 in mice ovaries. Quantitative PCR analysis showed that the expression of Pin1 mRNA significantly increased in the ovaries of equine chorionic gonadotropin (eCG)-treated mice compared with those of untreated mice (P&lt;0.05). However,...
Palavras-chave: E2F; Follicle development; Gonadotropin; Ovary; Pin1.
Ano: 2006
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4056

Effect of Intraperitoneal Administration of Desialylated Erythropoietin on the Follicular Survival in Cryopreserved Canine Ovaries after Xenotransplantation
Provedor de dados: 19
Autores: Hirayama, Yukari; Inoue, Kou-suke; Suzuki, Hiroshi; 鈴木, 宏志.
The effect of intraperitoneal administration of desialylated erythropoietin (asialo EPO) on the follicular reserve of cryopreserved canine ovarian tissues was examined using non obese diabetic-severe combined immunodeficient (NOD-SCID) mice was examined. Vitrified-warmed canine ovarian tissues were placed under the dorsal skin of mice, and were then treated with saline or 400 or 4,000 U/kg/day of asialo EPO by intraperitoneal injection from one day before transplantation for 5 days. Transplanted tissues were removed and subjected to a histological examination 4 weeks after the transplantation. Without asialo EPO treatment, the mean number of primordial follicles in the cryopreserved ovarian tissues had decreased from 4.3/mm2 to 0.2/mm2 at 4 weeks after...
Palavras-chave: Canine; Cryopreservation; Ovary; Transplantation.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3856

A Potential Use of Color Ultrasound as a Tool for Reproductive Management: New Observations Using Color Ultrasound Scanning that were not Possible with Imaging Only in Black and White
Provedor de dados: 19
Autores: MIYAMOTO, Akio; SHIRASUNA, Koumei; HAYASHI, Ken-Go; KAMADA, Daichi; KAWASHIMA, Chiho; KANEKO, Etsushi; ACOSTA, Tomas J.; MATSUI, Motozumi; 宮本, 明夫; 白砂, 孔明; 川島, 千帆; 松井, 基純.
Ultrasonography (US) has been applied to the ovary and the uterus of domestic animals from the late 1980s, and established in 1990s as a practical tool for animal production. US made it possible to detect pregnancy at a very early stage and, most importantly, to observe the real-time dynamics of follicular development and hence the discovery of follicular waves. This has greatly contributed to our understanding of ovarian physiology and helped us to develop several "pin-point" protocols for hormonal treatment. While US may not seem to fit preconceived ideas of a "green" technology, it does not contravene environmental priorities, and it is non-invasive ("ethical") and non-hormonal ("clean"). Using the US technology that is now commercially available at a...
Palavras-chave: Color Doppler ultrasound; Blood flow; Ovary; Reproduction; Cow.
Ano: 2006
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2983

Follicular Loss of the Cryopreserved Canine Ovary after Xenotransplantation
Provedor de dados: 19
Autores: Ishijima, Takako; Abe, Yasuyuki; Suzuki, Hiroshi; 鈴木, 宏志.
The effect of cryopreservation and subsequent xenotransplantation on the follicular reserve of the canine ovary by using non obese diabetic-severe combined immunodeficient (NOD-SCID) mice was examined. Vitrified-warmed canine ovarian tissues were placed into the ovarian bursa of mice, and then were removed and subjected to histological examination at 4 weeks after the transplantation. Over 30% of primordial follicles and 65% of early primary follicles survived after cryopreservation. However, regardless of breed or age, percentages of survived primordial follicles and early primary follicles after the transplantation ranged from 0-7% and from 0-15%, respectively. These results indicate that the majority of primordial follicles and early primary follicles...
Palavras-chave: Canine; Cryopreservation; Ovary; Transplantation.
Ano: 2009
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2802

A comparative study of the ovaries in some Brazilian bees (Hymenoptera; Apoidea)
Provedor de dados: 84
Autores: Martins,Gustavo Ferreira; Serrão,José Eduardo.
The present paper concerns the morphological features of ovaries in 33 species of bees with different social behavior patterns. The ovaries of bees were examined under light microscope. They are polytrophic-meroistic ovaries formed for an anterior germarium and a basal vitellarium. The germarium houses the germ cells and in the vitellarium there are follicles arranged linearly. In general the follicle is constituted by a nutritive chamber (a cluster of nurse cells) and an oocyte chamber, both covered by a single epithelial layer of follicular cells. The number of ovarioles per ovary and the number of mature oocyte per ovary were analyzed. Measurements of ovariole length, oocyte size, oocyte width, follicular epithelial height and the intertegular distance...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insect morphology; Ovary; Reproductive tract; Social behavior.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492004000300001

Evaluation of induced molting methods on the livability and reproductive system regression of Japanese quails (Coturnix japonica)
Provedor de dados: 89
Autores: Teixeira,RSC; Cardoso,WM; Nogueira,GC; Câmara,SR; Romao,JM; Siqueira,AA; Sampaio,FAC; Moraes,TGV; Campello,CC; Buxade,CC.
This study aimed at evaluating the alternative method of zinc oxide and fasting to induce molt in Japanese quails. A total number of 190 48-week-old quails was used. They were at end of laying cycle, and presented low egg production. Quails molted by zinc oxide (Z) were fed a diet containing 25,000 ppm of zinc oxide, and received water ad libitum. Quails treated by fasting (F) received no feed and a day of water restriction. The treatment period was determined by the experimental level of body weight loss (BWL). Birds were submitted to different levels of BWL in order to analyze reproductive system regression (ovary + oviduct), and livability. The following groups were established according to their BWL: Control (untreated quails); F25 (25% BWL by F); F35...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forced molting; Ovary; Oviduct; Quail; Zinc oxide.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000200002

Effect of forced-molting methods and rearing temperatures on the performance and organ biometrics of laying hens
Provedor de dados: 89
Autores: Sgavioli,S; Filardi,R da S; Praes,M F F M; Domingues,C H de F; Andrade,P de C; Pileggi,J; Boleli,I C; Junqueira,O M.
An experiment was conducted to evaluate the biometrics of organs (ovary, oviduct, liver, proventriculus and gizzard) of laying hens submitted to different forced-molting methods of molt and maintained at three different temperature. Organs were evaluated after molting and resting period. Six hundred birds were distributed according to a completely randomized experimental design in a 5x3 factorial arrangement (forced-molting methods x environmental temperatures) into 15 treatments with 5 replicates of 8 birds each. The molting methods applied were the dietary inclusion of 90%, 70%, 50% of alfalfa, 2,800 ppm zinc oxide, or total feed restriction. Birds were kept at ±20 ºC, ±27 ºC, or ±35 ºC. Data were submitted to analysis of variance and means were compared...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heat stress; Ovary; Feed restriction; Welfare.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300011

Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers
Provedor de dados: 89
Autores: HAO,E; Chen,H; Ge,S; Huang,R.
ABSTRACT Photoperiod and nutrition are major factors that affect the reproductive efficiency particularly in female animals. In this study we examined the interaction of photoperiod and food restriction on growth, sexual maturation and receptor mRNA expressions of leptin, melatonin, and estrogen in abdominal fat and the ovary of pullets. There were no interaction effects between photoperiod and feeding level on body weight, abdominal fat weight, ovary weight at both 14 wk and 18 wk. Abdominal fat weight of feed restriction group was significantly lower compared with the control group at the age of 14 wk, 18 wk, and age of the first egg (AFE) (p&lt;0.05). Ovary LEPR (Leptin receptor) gene expression showed an interaction effect of the first egg. Restricted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed restriction; MELR; Ovary; Photoperiod; Pullet.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300311

EFFECTS OF VITAMIN E SUPPLEMENTATION ON SERUM HORMONES AND GENE EXPRESSION OF ANTI-SEASON BREEDING XINGGUO GREY GEESE (ANSER CYGNOIDES)
Provedor de dados: 89
Autores: Yin,L; Ran,J; Lian,T; Yang,C; Li,S; Liu,Y.
ABSTRACT The objective of this study was to analyse the impact of dietary vitamin E supplementation on laying performance, serum reproductive hormones concentration and gene expression in ovary and follicles of anti-season breeding goose. A total of 210 anti-season breeding geese were divided into seven treatments with six replications. Each group was supplied with diets containing different vitamin E (DL-α-tocopherol acetate) contents (0, 10, 20, 40, 80, 160, 320mg/kg). We observed that the egg production and laying rate improved significantly at doses of 10 and 80 mg/kg, while the highest egg weight appeared in the 320 mg/kg group. Meantime, 80 mg/kg of vitamin E supplementation significantly improved the concentration of follicle-stimulating hormone...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitamin E; Reproductive hormones; Ovary; Follicle; Dicer.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000400310

Gross morphology and ultrastructure of the female reproductive system of Diaphorina citri (Hemiptera: Liviidae)
Provedor de dados: 103
Autores: Dossi,Fabio Cleisto Alda; Cônsoli,Fernando Luis.
The morphological traits of the female reproductive system of Diaphorina citri were examined in detail. Diaphorina citri has telotrophic ovaries with ovarioles organized as a "bouquet", displaying a rudimentary terminal filament and a syncytial tropharium. The vitellarium carries a single growing oocyte at each maturation cycle, which is connected with the tropharium by a nutritive cord. Morpho-functional changes occur during oocyte development, mainly during mid to late vitellogenesis. Morphological events such as the patency of the follicular cells and the intense traffic of vesicles through para- or intracellular processes, suggest a possible route for endosymbiont invasion of D. citri reproductive tissues. Similar events have been demonstrated to be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Accessory structures; Asian citrus psyllid; Oogenesis; Ovary.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000200007

Oocyte development in cattle: physiological and genetic aspects
Provedor de dados: 96
Autores: Britt,Jack H.
Oocytes in cattle are formed during embryogenesis and develop within individual follicles in the cortex of the ovary. Dormant primordial follicles become active and undergo progressive development at regular intervals commencing during the late fetal stage and continuing throughout adulthood. Once activated, follicles and oocytes in a cohort either grow to maturation and ovulation or undergo atresia, ultimately depleting the ovaries of germ cells. It takes an estimated 100 days for a follicle and its oocyte to reach the mature ovulatory stage. Within an individual, number of follicles in one ovary is similar to number in the other ovary; however, there are large differences among individuals in total number of follicles present in both ovaries. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Follicle; Ovary; Oocyte; Embryo; Fecundity.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008001300013

Association of recombinant bovine somatotropin (rBST) with equine chorionic gonadotropin (eCG) on antral follicle count and oocyte production in Holstein and Tabapuã heifers
Provedor de dados: 96
Autores: Morais,Hévea de; Spuri,Renata; Gonçalves,Tarcísio de Moraes; Carvalho,Rafaela Rodrigues de; Andrade,Renato Campos; Pinto,Tássia Louregiani Carvalho; Souza,José Camisão de.
The objective of this study was to investigate whether the use of rbST and eCG prior to ultrasound-guided follicular aspiration (OPU) improves oocyte yield and quality in Tabapuã and Holstein heifers. The study was conducted in two phases, 20 days apart, in a change-over design. The dominant follicle was ablated two days (D-2) before two treatments: stimulation (6 Holstein and 8 Tabapuã), 500 mg of rbST (Boostin®) on D0 and 500 IU of eCG (Folligon) on D2; and control (6 Holstein and 8 Tabapuã), in which heifers received injections of the excipient. Heifers were aspirated on D4. Oocytes were subjected to a well established commercial in vitro embryo production protocol (Vitrogen®) and embryos were evaluated seven days after fertilization. There was an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Embryo; Hormonal stimulation; Ovary.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001200004

Histological characterization of cellular types during Scinax fuscovarius oogenesis (Lutz) (Anura, Hylidae)
Provedor de dados: 104
Autores: Oliveira,Classius de; Santos,Lia Raquel de Souza.
This paper describes morphological characteristics of the ovarian germinative cells of the Scinax fuscovarius (Lutz, 1925). The ovary is organized in primordial germinative cells (oogonia) and follicular structures (ovarian follicle) - oocytes surrounded by follicular cells. Oogonia: their nests are peripherically localized, containing cells with large and oval nucleus. Oocytes I: basophilic cytoplasm; the spherical nucleus presents few nucleoli, one or two; the follicular cells (one tenuous layer) surround these previtellogenic cells. Oocytes II: the cell is larger and the cytoplasm becomes more basophilic; the nucleus presents few nucleoli and contains many chromosomes in the periphery (beginning the perinucleolar stage). Oocytes III: the cytoplasm...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oocytes; Oogonia; Ovary; Pigment; Vitellogenesis.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752004000400029

Morphological aspects of the ovary of Columba livia (Gmelin) (Columbidae, Columbiformes)
Provedor de dados: 104
Autores: Ribeiro,Maria das Graças; Teles,Maria Eloiza de Oliveira; Maruch,Sandra Maria das Graças.
The study of the female genital system of Columba livia (Gmelin, 1789) is part of the research on the reproductive biology of Brazilian birds. This work describes the morphological aspects of the ovary of Columba livia, as well as the histological differences observed in the ovarian follicles during the ovocyte maturation process. Ten Columba livia females were studied, whose ovaries had been dissected, fixed in Bouin and Helly solutions, and histologically processed for staining (Hematoxylin-Eosin; Gomori's trichromic and Weigert's technique and Gomori's technique for connective tissue fibers). The ovary has an irregular surface, is located in the abdominal cavity, and relates to the cranial portion of the left kidney and caudal extremity of the left...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Columbidae; Birds; Genital apparatus; Ovary.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000100016

Desenvolvimento morfológico e dos ovários de Kalliapseudes schubarti Mañe-Garzon (Crustacea, Tanaidacea) do Canal de São Sebastião, São Paulo, Brasil
Provedor de dados: 104
Autores: Leite,Fosca Pedini Pereira; Leite,Paulo Eduardo Pereira.
The morphological stages of the Kalliapseudes schubarti Mañe-Garzon, 1949 females were easily determinated and they were similar, but the male stages show distint forms probably due to the ambient stimuli. The description of the male stages demonstrate that K. gianucai (Bacescu, 1979) is another male stage of K. schubarti, probably a secondary copulatory stage. The morphology and development of the ovary is related both with the maturity and with the morphological modifications of females stages.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea; Tanaidacea; Morphology; Development; Stages; Ovary.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000300016

Histological study of capuchin monkey (Cebus apella) ovarian follicles
Provedor de dados: 36
Autores: Domingues,Sheyla Farhayldes Souza; Diniz,Luiz Viana; Furtado,Sonia Helena Costa; Ohashi,Otavio Mitio; Rondina,David; Silva,Lúcia Daniel Machado.
The present study aimed to obtain quanti-qualitative data about the follicular ovarian population in Cebus apella females. Seven ovaries were obtained from 4 C. apella adult females. The ovaries were subjected to light microscopy. The number of preantral and antral follicles for each ovary was estimated using the Fractionator method. The preantral follicles were classified into primordial, transitional, primary and secondary follicles. Antral follicles were those that presented an antral cavity. All counted follicles were classified as normal or degenerated. The diameter of the follicles, oocytes and their nuclei were determined to accompany the follicular development. All results were represented as mean ± SE. The number of preantral follicles was 56,938...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ovary; Histological study; Cebus apella; Ovarian follicles.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672004000300015

HISTOLOGICAL DESCRIPTION OF THE REPRODUCTIVE SYSTEM OF MALE AND FEMALE HATCHLINGS OF THE MAGDALENA RIVER TURTLE (Podocnemis lewyana)
Provedor de dados: 37
Autores: SÁNCHEZ-OSPINA,ANDRÉS C; RODRIGUEZ,BERARDO; CEBALLOS,CLAUDIA P.
In this study we described the macroscopic and microscopic histology of the reproductive system of male and female Podocnemis lewyana neonates (3.5 months old). We found macroscopic differences in the morphology of the gonads between the sexes, with ovaries being twice as long as testes, and testes being twice as wide as ovaries. Microscopically, we identified several immature elements, such as the lack of a muscle layer in the oviduct of females, and simple epithelia instead of pseudostratified epithelia in the oviduct and epididymis described in reptile adults. We also found a black pigment observed macroscopically in the mesovarium, and macroscopically and histologically in the epididymis. This pigment is consistent with the center of melano-macrophages...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epididymis; Histology; Ovary; Oviduct; Pigment; Testis.
Ano: 2014
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2014000300009

Morphoanatomy and ontogeny of fruit in Bromeliaceae species
Provedor de dados: 39
Autores: Fagundes,Natividad Ferreira; Mariath,Jorge Ernesto de Araujo.
This study aims to give an overall view of fruit structure in Bromeliaceae, since these studies are extremely scarce in this family, showing the morphology, anatomy and ontogeny of fruits of six species belonging to six different genera, representing three subfamilies. All species studied have a tricarpellary and trilocular ovary, with an obturator covering the placental region. Dyckia maritima, Pitcairnia flammea, Tillandsia aeranthos and Vriesea carinata have capsular fruits (septicidal or biscidal), characterized mainly by the presence of macrosclereids in the exocarp or endocarp, fibers in the ventral region of the carpels, six dehiscence lines and three vascular bundles in each carpel. Aechmea calyculata and Billbergia nutans have fruits classified as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomy; Bromeliaceae; Development; Ovary; Pericarp.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000300020

Morfometria e histologia das gônadas de machos e fêmeas recém-eclodidos de Podocnemis expansa e Podocnemis unifilis (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v34i1.7257
Provedor de dados: 3
Autores: Malvasio, Adriana; Universidade Federal do Tocantins - UFT; Nascimento-Rocha, Josefa Moreira do; Universidade Federal do Tocantins - UFT; Santos, Helcileia Dias; Universidade Federal do Tocantins - UFT; Ataídes, Adson Gomes de; Universidade Federal do Tocantins - UFT; Portelinha, Thiago Costa Gonçalves; Universidade Federal do Tocantins - UFT.
P. expansa e P. unifilis. Todos os espécimes utilizados neste trabalho foram procedentes do rio Javaés, entorno do Parque Nacional do Araguaia, Estado do Tocantins, Brasil. Após estudo sob estereomicroscópio, foram coletadas as gônadas para o procedimento histológico de rotina. Foram analisadas 187 amostras de P. expansa, das quais 81,2% foram identificadas como fêmeas e 18,7% como machos; e 98 de P. unifilis, das quais 31,6% eram fêmeas e 68,4% machos. Não foram verificadas diferenças microscópicas relevantes na sexagem entre estas espécies. Os critérios utilizados no diagnóstico microscópico foram principalmente a morfologia das gônadas, a presença do apêndice no oviduto remanescente, a morfologia do oviduto e as características das células de...
Palavras-chave: 2.04.00.00-4 tartarugas; Sexagem; Ovário; Testículo; Microscopia; Tocantins 2.04.00.00-4 turtles; Sexing; Ovary; Testicle; Microscopy; Tocantins.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/7257

Evaluation of ovarian structures using computerized microtomography
Provedor de dados: 42
Autores: PAULINI,FERNANDA; CHAVES,SACHA B.; RÔLO,JOSÉ LUIZ J.P.; AZEVEDO,RICARDO B. DE; LUCCI,CAROLINA M.
ABSTRACT Visualization and clear understanding of the ovarian structures are important in determining the stage of oestrus, helping to diagnose several pathologies and supporting advances in reproductive technologies. In this research, computerized microtomography (microCT) was used to explore and characterize the ovarian structure of seven mammalian species. Ovaries of rats, female dog, queens, cows, mares, sows and a female donkey were used. After microCT scanning, the same samples were prepared for histologic evaluation, used here as a validation criterion. It was possible to distinguish regions of the cortex and medulla, visualize the morphology and distribution of blood vessels, clearly observe corpus luteum and antral follicles, and visualize oocytes...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ovarian follicle; Blood vessels; Histology; Tomography; Ovary.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502131

Number of ovarioles in workers descendent from crossings between Africanized and Italian honeybees, Apis mellifera L.: comparison among backcrosses and ancestors colonies
Provedor de dados: 44
Autores: Thuller,Regina H.C.; Malaspina,Osmar; Bueno,Odair C.; Chaud-Netto,José.
A comparative study of ovarioles number in workers of bees, Apis mellifera L. of 36 backcrosses colonies (Africanized and Italian), and stock, inbred and F1 colonies was carried out. No difference on the number of ovarioles in right and left ovaries of workers from the colonies used was detected. The hybrid bees from F1 generation presented from 2 to 31 ovarioles. The number of ovarioles observed in backcrossed Africanized workers varied from 2 to 56 and from 2 to 117 in the Italian ones. The range observed in these bees may be partially explained by the variability registered in stock colonies (Africanized workers: 2 - 16; Italian workers: 6 - 26) and in F1 colonies (2 - 31).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Hymenoptera; Apidae; Ovary; Hybrid bees.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000200010

Ovarian cholesteatoma in a bitch
Provedor de dados: 45
Autores: Oliveira,R.G.; Fukushima,F.B.; Nascimento,E.F.; Santos,R.L.
O presente relato descreve um caso de colesteatoma ovariano em uma cadela Yorkshire de 15 anos de idade. O diagnóstico clínico foi de piometra e o animal foi submetido a ovariosalpingohisterectomia. O ovário esquerdo apresentava-se aumentado de volume (4 x 3 x 2cm), firme e esbranquiçado. Histologicamente havia grande número de cristais de colesterol, com acúmulo de macrófagos e algumas células gigantes multinucleadas. A lesão resultou em compressão do córtex ovariano adjacente que não continha nenhuma estrutura funcional, como folículos e corpo lúteo. O ovário contralateral não apresentava nenhuma alteração e continha múltiplos corpos lúteos.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bitch; Cholesteatoma; Cholesterol granuloma; Ovary.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000600037

Short-term preservation of Pecari tajacu ovarian preantral follicles using phosphate buffered saline (PBS) or powdered coconut water (ACP(r)) media
Provedor de dados: 45
Autores: Lima,G.L.; Santos,E.A.A.; Lima,L.F.; Luz,V.B.; Rodrigues,A.P.R.; Silva,A.R.
We compare protocols for the short-term preservation of collared peccarie's ovarian preantral follicles (PFs) by using phosphate buffered saline- (PBS) or powdered coconut water- (ACP(r)) based medium. For morphology analysis each pair of ovaries collected from six females was divided into nine fragments. One fragment was destined for morphology analysis (histology and transmission electron microscopy - TEM), constituting the control group and the other fragments were placed in tubes with PBS or ACP(r), packed in 5 L Styrofoam boxes, stored for 4h, 12h, 24h, and 36h, and then analyzed. For viability analysis a pair of ovaries from two additional females was divided into nine fragments; one fragment was immediately destined for viability analysis (Trypan...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Collared peccaries; Preantral follicles; Coconut water; Ovary; Oocytes.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000601623

Clinical and pathological presentation of squamous metaplasia of the rete ovarii in a Zebu cow
Provedor de dados: 45
Autores: Borges,Á.M.; Peixoto,D.G.M.; Paixão,T.A.; Santos,R.L.
Squamous metaplasia of rete ovarii is characterized by replacement of the normal cuboidal epithelium of rete ovarii by a keratinized stratified scamous epithelium, leading to accumulation of keratinized material within the tubules and cystic dilatation of rete ovarii. The present study decribes a case of scamous metaplasia of rete ovarii in a 10 year old Zebu cow, including clinical, surgical, ultrasonographic, histopathological and hormonal findings. At first ultrasound examination the cow had lightly asymmetric ovaries with follicles presenting echogenicity similar to luteinized follicular cysts. After transvaginal follicular aspiration creamy yellowish sanguineous-purulent content was recovered. After unilateral ovariectomy the ovary was sectioned and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Epidermoid cyst; Ovary; Rete ovarii; Teratoma.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000100017

Histomorphometric analysis of gonads of green turtles (chelonia mydas) stranded on the coast of Espírito Santo state, Brazil
Provedor de dados: 45
Autores: Failla,G.; Calais Júnior,A.; Pavanelli,L.; Nunes,L.C.
ABSTRACT Studies on reproduction in sea turtles are important due to its life cycle, migratory patterns, high juvenile mortality and environmental impacts. This study aimed to analyse histomorphometrically gonads of C. mydas from the coastline of the Espírito Santo State, Brazil. Ovaries and testicles were collected between 2014 and 2015 from stranded animals. The material was fixed in formalin 10%, assessed macroscopically and processed for histomorphometrical evaluation. Gonads from 34 individuals were evaluated, twenty-four females and ten males. Macroscopic sexual identification presented 100% accuracy confirmed by histology. Sexual dimorphism was observed in one individual, which was considered as adult (CCL=1.023 m). Microscopy of female gonads...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Follicular development; Testis development; Histology; Ovary; Testicle.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000100213

Morphological and pathological aspects of the rete ovarii in sheep (Ovis aries)
Provedor de dados: 45
Autores: Cassali,G.D.; Nogueira,J.C.; Nascimento,E.F.; Cardoso,J.S.; Ferreira,D.L.
Sixty-four ovaries of adult woolly sheep from the Centro de Pesquisa dos Campos Sul Brasileiros - Embrapa, Bagé-RS, Brazil, were analyzed histologically. The presence of the rete ovarii was detected in 55 of the 64 ovaries (85.9%), located in the periovarian tissue, in the hilus and in the medullary or cortical regions. As also observed in other mammals, the rete ovarii of sheep is morphologically divided into three portions: intraovarian rete, connecting rete and extraovarian rete. Continuity between the extraovarian rete and the uterine tube was observed in five ovaries (7.8%), suggesting a tuboretial connection, as reported for cows and does. Pathological examination of the rete showed the formation of cysts surrounding the connecting and/or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sheep; Ovary; Rete ovarii.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352000000100012

Mechanical isolation of capuchin monkey (Cebus apella) preantral ovarian follicles
Provedor de dados: 45
Autores: Domingues,S.F.S.; Ferreira,H.S.; Muniz,J.A.P.C.; Lima,A.K.F.; Ohashi,O.M.; Figueiredo,J.R.; Silva,L.D.M.
The aim of this study was to adapt a mechanical procedure for the isolation of intact preantral follicles from Cebus apella ovaries. The interval effect of serial sections of the tissue chopper was tested on a number of preantral follicles isolated from ovaries (n=6) of three C. apella females, two prepubertal and one adult. Ovaries were divided into four equal parts and fragmented with a tissue chopper, adjusted for serial sections at intervals of 250, 500, 750 and 1,000µm, respectively. Isolated follicles were counted in a Neubauer's chamber and classified as primordial, primary or secondary. The number (mean±SE) of preantral follicles isolated from 1/4 ovary varied from 68,330+17,590 (at the 1,000µm cut interval) to 300,830+111,460 (at the 500µm cut...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Monkey; Preantral follicle; Isolation; Ovary; Cebus apella.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000300009

Acquired vesicovaginal fistula secondary to ovariohysterectomy in a bitch: a case report
Provedor de dados: 45
Autores: Gadelha,C.R.F.; Ribeiro,A.P.C.; Apparício,M.F.; Covizzi,G.J.; Vicente,W.R.R.
A seven-year-old bitch was referred for investigation of a two-month history of strangury. Clinical signs had developed within two days of elective ovariohysterectomy. Ultrasonographic and radiographic examinations suggested stump pyometra or cervical granuloma and vesicovaginal fistula. Two laparotomies were performed to repair the adhesions, but no reduction in clinical signs was observed. Medical treatment was performed. Eight months later, the animal was admitted for examination and it appeared to be healthy but still had signs of strangury.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bitch; Strangury; Laparotomy; Ovary.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000200007

Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads: I - Post embryonic development
Provedor de dados: 47
Autores: Ibañez de Barrett,Cecilia I.; Bozzini,Juan Pablo; Mariano de Bozzini,Marta.
The post-embryonic development of the female gonads in Triatoma infestans (Hemiptera, Heteroptera), insects of importance in health affairs as harbors and vectors of different tripanosomatidea flagellates, is presented in a complete follow-up since insect hatches from the egg up to the last molt in the fifth instar stage. The detailed description of the morphological changes which occur in each instar as well as careful measurements evaluating its size increase have been analyzed by stereomicroscopy, phase contrast, dark field, and oblique illumination, in order to optimize the observations as well the photographic register of gonad morphology and structure. The analysis was performed on gonad specimens obtained from broods no less than twenty (20) nymph...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ovary; Development; Hemiptera; Insect Nymph.
Ano: 2004
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452004000300002

Effects of Replacement of Fishmeal with other Alternative Plant Sources in the Feed on Proximate Composition of Muscle, Liver and Ovary in Tilapia (Oreochromis nioloticus)
Provedor de dados: 52
Autores: Al-Ghanim,Khalid; Al-Thobaiti,Ahmed; Al-Balawi,Humoud F. Alkahem; Ahmed,Zubair; Mahboob,Shahid.
ABSTRACT The major objective of this experiment was to assess the effect of alternate plant protein sources as a replacement for fish meal in feed on the proximate composition of muscle, liver and tissue in Oreochromis niloticus. O. niloticus of average size (average Weight 45.00±1.25 g, total length 13.28±1.42 cm) were stocked in 100 L glass aquarium. Fish were fed with three experimental feeds (A, B and C) and reference commercial feed (D) for 16 weeks. Feed A, B and C was prepared from four different plant sources and fish meal (40 % crude protein). Fish were fed at the rate 3 % of body weight daily. It has been observed that tilapia fed with feed B in which 20 % fish meal was replaced compared to feed C with other plant sources of protein, had shown...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed; Plant sources; Muscle; Liver; Ovary.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100420

Polycystic ovarian syndrome: temporal characterization of the induction and reversion process in an experimental model
Provedor de dados: 62
Autores: Salvetti,Natalia R.; Canal,Ana M.; Gimeno,Eduardo J.; Ortega,Hugo H.
Numerous experimental models have been developed for the study of the polycystic ovarian syndrome in the rat. In the present study, the syndrome was induced by exposure to constant light. The process was evaluated during its induction and also during its reversion. The estral cycle was analyzed through the vaginal cytology; reproductive parameters were evaluated by mating, as well as the ovarian morphology. All the animals developed the syndrome after 13 weeks of permanent light. The histologic characteristics of the ovaries, at week 15, were similar to those observed in the polycystic ovarian syndrome in human and other species. After regression of the syndrome, there was not difference in any of the evaluated reproductive parameters, when compared with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Histopathology; Ovary; PCOD; Polycystic ovarian syndrome; Rat.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962004000600006

Granulosa cell tumour with metastasis in a cat
Provedor de dados: 62
Autores: GIACÓIA,Márcia Regina; MAIORKA,Paulo César; OLIVEIRA,Clair Motos; SINHORINI,Idércio Luiz; DAGLI,Maria Lúcia Zaidan.
The clinical, gross and microscopical features of a granulosa cell tumour in the ovary of a 2-year-old cat are described. This is a rare tumour in cats, moreover because of the animal’s age. It was diagnosed clinically by ultrasound examination. The tumour, a cystic mass in the region of the left ovary, metastasized to the epiplon and lungs. Tumour cells expressed vimentin and were arranged in a diffuse sarcomatous pattern, supported by a fine fibrovascular stroma. The presence of hair loss and repeated oestrus as clinical signs are indicative of orthoendocrine paraneoplastic syndrome, due to excessive oestrogen stimulation. This tumour should be considered in the differential diagnosis of behavioural disturbances in female cats.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Granulosa cell tumour; Ovary; Cats; Immunohistochemistry; Paraneoplastic syndromes.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961999000500005

Single-port laparoscopic ovariectomy using a pre-tied loop ligature in Santa Ines ewes
Provedor de dados: 65
Autores: Barros,Felipe Farias Pereira da Câmara; Teixeira,Pedro Paulo Maia; Silva,Marco Augusto Machado; Coelho,Cassia Maria Molinaro; Lopes,Maristela de Cassia Seudo; Kawanami,Aline Eyko; Chung,Denise Granato; Coutinho,Leandro Nassar; Ribeiro,Rachel Bittencourt; Padilha,Luciana Cristina; Vicente,Wilter Ricardo Russiano.
ABSTRACT: The aim of the study was to develop and assess the feasibility, postoperative pain and inflammatory response of the single-port laparoscopic ovariectomy in ewes, using a simple pre-tied loop ligature technique. Pre-tied Meltzer's knot was employed for prophylactic hemostasis of the ovarian pedicle. Slipknot was inserted within the abdominal cavity through a 14-gauge needle and tied surrounding the ovarian pedicle. Mean surgical time, manipulation, ligature and resection of each ovary and anesthesia time were 63±20, 20±10 and 91±26 minutes, respectively. No bleeding occurred during the surgeries. Ewes showed low scores pain (0.5±0.5) at all time-points. Postsurgical plasma fibrinogen was within the normal range for sheep specie at all time-points....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Laparoscopy; Ovary; Ovine; Single-site access; Slipknot.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001102033

Steroidogenic enzymes mRNA expression profile and steroids production in bovine theca cells cultured in vitro and stimulated with angiotensin II
Provedor de dados: 65
Autores: Rigo,Melânia Lazzari; Dau,Andressa Minussi Pereira; Glanzner,Werner Giehl; Martins,Manoel; Zanella,Renato; Rizzetti,Tiele Medianeira; Comim,Fabio Vasconcellos; Gonçalves,Paulo Bayard Dias.
The main objective of this study was to detect the steroidogenic effects of Ang II in bovine theca cells in vitro. Bovine theca cells were obtained from follicles (larger than 10mm of diameter) collected from a local abattoir and submitted to different treatments in a sequence of experiments. In experiment 1, CYP17A1 mRNA profile was evaluated in LH- (10ng ml-1) and Ang II-treated (0.1µM) theca cells. In experiment 2, a dose-response effect of Ang II (0.001; 0.1 e 10µM) plus insulin (100ng ml-1) and LH (100ng ml-1) was evaluated on steroidogenesis of bovine theca cells. Experiment 3 explored the effects of saralasin (an antagonist of Ang II receptors) on steroid production and steroidogenic enzymes regulation in theca cells. After 24 hours, culture media...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: RAS; LH; Steroidogenesis; Ovary.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000400704

PRODUCTION OF OVOGONIA BY GERMINATIVE EPITHELIUM OF THE OVARY AT SOME MAMMALIA AND BIRDS
Provedor de dados: 65
Autores: Sincai,Mariana; Marcu,Adrian.
The studies were effected on ovaries from sows, cows, bitches, dous and hens. Our investigations revealed the generation of cellular rows of germinative epithelium into the cortex not only during the embrionary period but also in the adult ovary. The histological investigations revealed an intense proliferative process of the germinative epithelium of adult ovary which generated groups of ovogonia under the lamina basalis. From ovogonia developed oocytes and then ovarian follicles. The cause for the proliferation of ovary germinative epithelium could be: the multiple folliculary dehiscences, the premature degeneration of ovarian follicles and formation of the corpus luteum, phenomena that reduce continually the number of embrionary ovogonia.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ovary; Epithelium; Mammalian; Hens; Proliferation; Ovogonia; Oocytes; Ovarian follicles.
Ano: 1993
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781993000300018