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Registros recuperados: 36
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A comparative study of the ovaries in some Brazilian bees (Hymenoptera; Apoidea) Pap. Avulsos de Zool. (São Paulo)
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
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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 OAK
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
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Alterações anátomo-histopatólogicas no sistema reprodutivo de ovelhas adultas, não prenhes, no município de Sobral, Ceará. Repositório Alice
SANTA ROSA, J.; SANTOS, L. F. L.; SIMPLICIO, A. A..
Resumo: Estudaram-se macroscópica e microscopicamente os sistemas reprodutivos de 118 ovelhas adultas, não prenhes, das raças Santa Inês (71), Morada Nova (23) e Somalis (24), procedentes do município de Sobral, Ceará. Registrou-se um percentuai de 20,35% de alterações, das quais 13,56% ocorreram nos ovários, 3,39% nas trompas, 1,70% no útero, 0,85% na cérvix e 0,85% na vagina. As lesões encontradas nos diferentes segmentos do sistema reprodutivo foram: degeneração cística do ovário (2,54%), cistos paraováricos uni e bilaterais (8,47%), hipoplasia ovariana uni e bilateral (1,70%), ooforite (0,85%), hidrosalpinge (1,69%), salpingite (0,85%), dilatação cística da ampola tubárica (0,85%), hiperplasia cística do endométrio (0,85%), piometrite (0,85%),...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Raça Morada Nova; Raça Santa Inês; Raça Somalis; Patologia genital; Brasil; Sobral; Genital tract; Brazil; Ovino; Ovelha; Doença animal; Aparelho reprodutor; Ovário; Vagina; Sheep; Ovary; Female genital diseases; Gynaecological diseases; Genital diseases; Vaginal diseases.
Ano: 1987 URL: http://www.alice.cnptia.embrapa.br/handle/doc/514138
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Analise do gametofito feminino de Brachiaria brizantha atraves de seccoes de ovarios incluidos em Resina Spurr. Infoteca-e
CUNHA, A.M.C.; CARNEIRO, V.T.C.; ARAUJO, A.C.G..
1998
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Morfologia; Planta; Morphology; Ovary; Gametophyte; Female.
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/174562
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Beneficial Effect of Hyperbaric Oxygen Therapy on the Follicular Survival in the Mouse Ovary after Transplantation OAK
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
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Characterization of blood flow and the effects of exogenous estradiol benzoate on residual follicles formed after ultrasound-guided transvaginal follicle aspiration in cattle. Repositório Alice
GHETTI, A. M.; SIQUEIRA, L. G. B.; ARASHIRO, E. K. N.; PALHÃO, M. P.; BRANDÃO, F. Z.; VIANA, J. H. M..
Abstract Background: Removal of the follicular content by ultrasound-guided transvaginal follicle aspiration (TVFA) may fail to induce immediate atresia and loss of function, resulting in the occurrence of residual follicles (RF). The aims of this study were to characterize the blood flow in RF and to determine the effects of the treatment with estradiol benzoate on RF fate. Lactating, cyclic Holstein-Gir crossbred cows were used. In Experiment 1, follicular wave emergence (D0) was synchronized in cows (n = 10) and follicular growth was then monitored by transrectal ultrasonography from D0 to D8, followed by TVFA of the largest follicle present on the ovaries 24 h later. Color Doppler ultrasound imaging was used to examine blood flow on the follicular...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Doppler; Ovary; Ovum pick-up; Steroidogenesis; Vascularization.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1062764
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Characterization of blood flow and the effects of exogenous estradiol benzoate on residual follicles formed after ultrasound-guided transvaginal follicle aspiration in cattle. Repositório Alice
GHETTI, A. M.; SIQUEIRA, L. G. B.; ARASHIRO, E. K. N.; PALHÃO, M. P.; BRANDÃO, F. Z.; VIANA, J. H. M..
Abstract Background: Removal of the follicular content by ultrasound-guided transvaginal follicle aspiration (TVFA) may fail to induce immediate atresia and loss of function, resulting in the occurrence of residual follicles (RF). The aims of this study were to characterize the blood flow in RF and to determine the effects of the treatment with estradiol benzoate on RF fate. Lactating, cyclic Holstein-Gir crossbred cows were used. In Experiment 1, follicular wave emergence (D0) was synchronized in cows (n = 10) and follicular growth was then monitored by transrectal ultrasonography from D0 to D8, followed by TVFA of the largest follicle present on the ovaries 24 h later. Color Doppler ultrasound imaging was used to examine blood flow on the follicular...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Doppler; Ovary; Ovum pick-up; Vascularization; Steroidogenesis.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1064979
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Cystadenocarcinoma Arising from Ovary in a Three Year Old Doberman Bitch International Journal of Morphology
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
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Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads: I - Post embryonic development Biocell
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
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Does Diabetes Alter Immunolocalization of Galectin-1 and Galectin-3 in the Rat Ovary? International Journal of Morphology
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
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Effect of Intraperitoneal Administration of Desialylated Erythropoietin on the Follicular Survival in Cryopreserved Canine Ovaries after Xenotransplantation OAK
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
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Endocrine Integration of Fetal Ovaries Grafted under Kidney Capsule of Unilaterally or Bilaterally Orchidectomized Male Hamster International Journal of Morphology
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
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Expression of Pin1, a peptidyl-prolyl isomerase, in the ovary of eCG/hCG-treated immature female mice. OAK
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<0.05). However,...
Palavras-chave: E2F; Follicle development; Gonadotropin; Ovary; Pin1.
Ano: 2006 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4056
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Follicular dynamics in Serrana goats IPB - Escola Superior Agrária
Simão, J.; Almeida, José Carlos; Valentim, Ramiro; Azevedo, Jorge; Fontes, Paulo; Mascarenhas, R..
Twenty-two Serrana goats were studied through two successive estrous cycles in order to characterize their follicular dynamics during the breeding season. The ovaries of the goats were scanned daily by realtime ultrasonography and all follicles ≥3mm were measured and classified. The data were classified by the number of follicular waves per goat to test the hypothesis that temporal and morphological differences between the last follicular wave of an ovary, irrespective of ovulation, will affect the selection of the next ovulatory wave. The mean interovulatory interval was 20.7±1.0 days (mean±S.D.). Three to five waves per estrous cycle were observed and 61.3% (19/31) of cycles had fourwaves. In estrous cycles with fourwaves, the day of onset of the first,...
Tipo: Article Palavras-chave: Estrous cycle; Follicular dynamics; Ovary; Goat; Ultrasonography.
Ano: 2006 URL: http://hdl.handle.net/10198/5805
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Follicular Loss of the Cryopreserved Canine Ovary after Xenotransplantation OAK
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
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FRUIT (PERICARP AND SEED) ONTOGENY OF SIDA SPECIES Gayana Botánica
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
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Genetic paternal effects on ovary characteristics and ovarian structures of canchim (Bos indicus vs Bos taurus) heifers: preliminary data. Repositório Alice
LEMES, A. P.; GIMENES, L. U.; MARCONDES, C. R.; ESTEVES, S. N.; VILAS BOAS, D. F.; MIGUEL, M. C. V.; ROMANELLO, N.; VOLANTE, C. A.; GARCIA, A. R..
2015
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Heifers; Physiology; Ovary.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1023895
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Granulosa cell tumour with metastasis in a cat Braz. J. Vet. Res. Anim. Sci.
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
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HISTOLOGICAL DESCRIPTION OF THE REPRODUCTIVE SYSTEM OF MALE AND FEMALE HATCHLINGS OF THE MAGDALENA RIVER TURTLE (Podocnemis lewyana) Acta biol.Colomb.
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: Journal 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
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Histological Seasonal Changes in Ovaries of Spotted Tinamous (Nothura maculosa Tinamidae, Temminck, 1815) Related to Gonadotrope Population International Journal of Morphology
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
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