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Registros recuperados: 19
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AGEING INDUCES APOPTOSIS AND INCREASES HSP70 STRESS PROTEIN IN THE EPIDIDYMIS OF Octodon degus International Journal of Morphology
Bustos-Obregón,Eduardo; Esponda,Pedro.
Apoptosis has been largely analyzed in the testis. Nevertheless, the epididymis has been scarcely studied. We analyzed the number of apoptotic cells in the different regions (caput, corpus and cauda) of the epididymis of the South American rodent Octodon degus both young and senile. Apoptosis was identified using the TUNEL method which detects in situ DNA fragmentation. Apoptosis was detected in the principal cells of the epididymal epithelium. The caput epididymis was the region more affected. The caput of young animals showed that 0.32/1000 cells were apoptotic in contrast to 5.1/1000 of senile animals. Also in the cauda epididymis apoptosis is increased with age, appearing 0.14/1000 and 3.9/1000 in young and senile animals, respectively. On the other...
Tipo: Journal article Palavras-chave: Androgens; Apoptosis; Epididymis; Ageing; Heat Shock Proteins.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000100005
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Anatomy of the male reproductive system of Phrynops geoffroanus (Testudines: Chelidae) - doi: 10.4025/actascibiolsci.v33i4.8091 Biological Sciences
Cabral, Silvia Rosana Pagliarini; UNESP - IBILCE; Santos, Lia Raquel de Souza; UNESP - IBILCE; Franco-Belussi, Lilian; UNESP - IBILCE; Zieri, Rodrigo; UNESP - IBILCE; Zago, Carlos Eduardo Saranz; UNESP - IBILCE; Oliveira, Classius de; UNESP - IBILCE.
The reproductive system of male Phrynops geoffroanus adults is macroscopically described and the variation in testicular biometry is evaluated. A pair of oval testes is connected by the efferent ductules to the epididymis, which continue as deferent ducts, which emerge in the penis. The volume of the gonads showed the highest averages during spring and summer months. GSI varied significantly throughout the year, with the highest averages observed in the months that correspond to the end of spring and the beginning of summer, when the reproduction of the species takes place, and the lowest averages were seen in winter, suggesting a cyclical testicular activity.
Palavras-chave: 2.04.00.00-4; 2.06.04.02-5 Testudines; Phrynops geoffroanus; Reproductive system; Testes; Epididymis; Efferent ductules; Deferent ducts; Penis Anatomia Animal Testudines; Phrynops geoffroanus; Reproductive system; Testes; Epididymis; Efferent ductules; Deferent ducts; Penis.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8091
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Aplasia segmentar da cauda e corpo do epididimo em caprino da raça Parda Alpina. Repositório Alice
SANTA ROSA, J.; SIMPLÍCIO, A. A.; MACHADO, R..
1991
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Aplasia segmentar; Raça Parda Alpina; Segmentar aplasia; Epididimo; Caprino; Testículo; Goats; Epididymis; Genetic disorders.
Ano: 1991 URL: http://www.alice.cnptia.embrapa.br/handle/doc/514679
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Biometria testículo-epididimária e a reserva espermática epididimária de ovinos Sem Padrão Racial Definido. Repositório Alice
MONTEIRO, A. W. U.; LIMA, I. C. S.; ANDRADE, I. R. A. de; MARTINS, G. A.; ARAÚJO, A. A.; DIAS, A. C. S.; ESTEVAM, F. N. de L.; AGUIAR, G. V.; CAMPOS, A. C. N..
Resumo: Foram coletados 41 pares de testículos e epidídimos. Antes do abate, verificou-se a idade, a circunferência escrotal (CE) e o peso corporal (PC) dos animais. Após o abate, os testículos e os epidídimos foram mensurados. Os testículos (PT) e epidídimos (PTE) foram separados e pesados aos pares e depois separadamente. Cada testículo foi mensurado quanto ao comprimento (CT), à largura (LT) e à espessura (ET). Os epidídimos foram pesados individualmente e depois divididos em cabeça, corpo e cauda (CAE) e novamente pesados em separado. A CAE foi mensurada quanto ao comprimento (CCAE), a largura (LCAE) e a espessura (ECAE). A concentração da reserva espermática foi determinada no fluido da CAE. A idade, o PC, a CE e a concentração da reserva espermática...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Reserva epididimária; Concentração espermática; Peso corporal; Ovino; Reprodução animal; Biometria; Testículo; Epídídimo; Condição corporal; Sheep; Epididymis; Testes; Biometry; Body weight; Body condition; Reproduction.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1000155
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Effect of Diet Contains Sesame Seed on Epididymal Histology of Adult Rat International Journal of Morphology
Mahabadi J,Amini; Khodayari,M; Bafrani H,Hassani; Nikzad,H; Taherian,A.
Sesamin is a major lignan constituent of sesame seed and considered as a key factor in a number of beneficial effects on human health. Sesame leaves intake improve and increase epididymal spermatocytes reserve in adult male sprague dawley rat. The present study was aimed to investigate the effects of contain sesame seed on epididymis histologhical structure. Thirty adult male rats were divided into two groups of 15 rats each. The regimen group received diet containing 30% sesame seed, while the control group received diet along 12 weeks. The right epididymis were removed and minced into several pieces on a specimen bottle containing normal saline for some few minutes to allow the sperms to become motile and swim out and sperm parameters were analyzed. Left...
Tipo: Journal article Palavras-chave: Diet; Epididymis; Sesame seed; Sperm; Hormone.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000100042
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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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Histomorphometric Changes in the Testes and Epididymis of Wistar Strain Albino Rats Following Fourteen Days Oral Administration of Therapeutic Doses of Some Antibiotics International Journal of Morphology
Awobajo,F. O; Raji,Y; Akinloye,A. K.
Studies on testes and epididymis tissue of rats treated orally for fourteen days with therapeutic doses of cloxacillin (6mg/100g/day), ampicillin (4mg/100/day) and tetracycline (12mg/100g/day) separately showed a significant reduction in testicular and epididimis architecture. Microscopic studies of these male reproductive organs further revealed a significant alteration in the epididymis as revealed by a significant reduction (p<0.05) in epididymal ductular diameter (EDD), and epididymal epithelial height (EEH) in treated group of animals. A significant increase (p<0.05) was however recorded in epididymal luminal diameter (ELD) in all the animals after the two and three week's recovery period allowed. This gives another insight into the toxicity...
Tipo: Journal article Palavras-chave: Antibiotics; Testes; Epididymis; Histomorphometry.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400047
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Histomorphometry of the Testes and Epididymis in the Domesticated Adult African Great Cane Rat (Thryonomys swinderianus) International Journal of Morphology
Olukole,S. G; Obayemi,T. E.
Histomorphometry of the testes and epididymis were carried out on the domesticated adult African great cane rat (Thryonomys swinderianus), also known as the grasscutter. The average weight and age of the cane rats used in the study were 1.93 ± 0.42 kg and 18.80 ± 1.39 months respectively. The mean relative volume of the germinal epithelium, interstitium and lumen of the seminiferous tubules of the cane rats were 68.54 ± 1.63%, 8.86 ± 0.85% and 21.40 ± 1.12% respectively. The mean diameter of the seminiferous tubules of the cane rats used for this study was 183.0 ± 11.06 µm. The ductal diameter of the caput, corpus and cauda epididymis were 207.4 ± 7.41 µm, 237.8 ± 10.15 µm and 274.2 ± 9.00 µm respectively, being statistically different (p< 0.05). The...
Tipo: Journal article Palavras-chave: Testes; Epididymis; Tubular diameter; Cane rat; Morphometry.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400042
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Increase in Apoptosis and of the Stress Protein HSP70 in the Mouse Epididymis Produced by the Antiandrogen Flutamide International Journal of Morphology
Bustos Obregón,Eduardo; Esponda,Pedro.
The general aim of this paper was to characterize some changes induced by androgen receptors blockage in the epithelial cells of the mouse epididymis. The antiandrogen flutamide was injected (10 mg/Kg b.w.) to adult male mice which were sacrificed 24h. and 72h. after. Controls injected with the vehicle (corn oil) were sacrificed at the same intervals. Cryosections were made of the epididymides and examined by the TUNEL method for quantification of apoptosis and also using immunocytochemistry to visualize the expression of the stress protein HSP70. The highest indexes of apoptosis were observed in the caput epididymis after 72 h. and were of 7.40 cells/1000 in contrast to controls (0.21 cells/1000). HSP70 appeared particularly increased in the caput and...
Tipo: Journal article Palavras-chave: Antiandrogen; Apoptosis; Epididymis; Flutamide; Stress proteins.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200025
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Localization of Total Proteins and Lactate Dehydrogenase in Hamster Epididymis International Journal of Morphology
Beu,Celia C. L.; Orsi,Antonio M; Domeniconi,Raquel F; Novelli,Ethel L. B..
The concentration of total protein measured by photocolorimetric methodology and reported as units per 100 mg of tissue decreased from the initial segment to the cauda epididymidis of the Golden hamster, being significant the numeric difference observed between these two regions. This observation was related with an increased synthesis and secretion of proteins to the lumen in proximal segments of the epididymidis duct, mainly in initial segment, as proposed for other rodents. LDH activity was higher in initial segment and distal cauda than in the caput and corpus epididymidis, although no significant differences in mean values had been observed. The high LDH activity observed in initial segment and cauda epididymidis of hamster had been related to an...
Tipo: Journal article Palavras-chave: Total protein; LDH; Tissue localization; Epididymis; Hamster.
Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000200003
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Morphological Features of the Apical Region in the Principal Cells of Mongrel Dog Epididymis International Journal of Morphology
Schimming,Bruno Cesar; Vicentini,Carlos Alberto.
The epithelial principal cells are the predominant cell type of the epididymis. These cells have been shown to be both secretory and endocytic cells. The apical region of the cytoplasm of principal cells in the mongrel dog are located close to the cell apex and tubular lumen, and shown microvilli at the luminal border and present a endocytic apparatus, that consists of coated pits and vesicles, endosomes of varying size, multivesicular bodies, and lysosomes. The endosomes, multivesicular bodies and lysosomes contained the electron-dense patches. These results suggest that principal cells of the epididymis in the dog as possess a highly developed endocytic apparatus play a role in endocytosis. These cells function are similarly to the related in other...
Tipo: Journal article Palavras-chave: Epididymis; Dog; Principal cells; Ultrastructure.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000100025
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Morphological Study of the Cytoplasmic Droplets as an Index of Sperm Maturation in Black Bengal Buck (Capra hircus) International Journal of Morphology
Datta,Uttam; Bandopadhyay,Soumendra Kumar; Hembram,Manik Lal.
Location of the cytoplasmic droplets (CD) and their dimensions varied significantly (p<0.01) when sperm cells traverse through the regions of caput, corpus and cauda epididymis and vasdeferens respectively. The gradual diminution in the morphology of CD between the epididymal regions were related significantly (p<0.01, p<0.05). Caudal shift of the CD, along with regression in size and finally their exclusion from the sperm cells reflected one of the most important events in the maturation process of male gametes in Black Bengal buck.
Tipo: Journal article Palavras-chave: Black Bengal buck; Epididymis; Spermatozoa; Cytoplasmic droplets.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000100048
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Postnatal Developmental Anatomy of Testes and Epididymis of Gaddi Goats International Journal of Morphology
Pathak,Archana; Katiyar,R. S; Sharma,D. N; Farooqui,M. M.
The study revealed that the testes of one-day-old Gaddi goats have descended in the scrotum along with adnexa. They were elongated compressed latero-medially and became ovoid during their postnatal growth and morphogenesis. The two testes were not different significantly in their weight and measurement. The average weight which was about 2.9 gm at birth grew to 107 gm (40X) in pubertal animals and nearly maintained it during the post-puberty (113 g). The mean length (1.46 cm), width (0.85 cm) and thickness (0.62 cm) also grew by 47, 60, and 83 times, respectively. In post-pubertal animals it measured 7.06 x 5.20 x 5.10 cm. The study indicated a very fast growth of the testes from birth to puberty, which did not alter significantly after that. A relatively...
Tipo: Journal article Palavras-chave: Postnatal developmental; Anatomy; Testes; Epididymis; Gaddi goats.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000400043
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Post-thaw acrosomal viability and reaction in sperm obtained from equine epididymis tail Rev Salud Anim.
Hernández,P.J.E; Fernández,R.F; Rodríguez,S.J.L; Soto,M.Y.G; Verona,J.E.H; García,R.A.D.
In order to evaluate the post-thaw effect on acrosomal viability and reaction of sperm collected from equine epididymis tail, 62 testes were collected and transported at 4°C. Epididymis was dissected to perform the retrograde flushing of the epididymis tail , using 10 mL of a diluent based on skim milk (INRA 82). The diluent obtained with the spermatic content was recovered in graduated collecting tubes and 1mL of each sample was taken to be evaluated. For evaluations, the samples having a minimum of 30% of progressive motility were selected. The evaluations were on: percentage of live sperm, normal morphology, sperm concentration, percentage of live sperm without acrosomal reaction (VsRA) and live with acrosomal reaction (VcRA), evaluating this indicator...
Tipo: Journal article Palavras-chave: Cryopreservation; Viability; Acrosomal reaction; FITC-PNA/IP; Sperm; Epididymis; Equine.
Ano: 2012 URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2012000200004
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Protective Effect of Lepidium sativum Seed Extract on Histopathology and Morphology of Epididymis in Diabetic Rat Model International Journal of Morphology
Kamani,Mehran; Hosseini,Elahe Seyed; Kashani,Hamed Haddad; Atlasi,Mohammad Ali; Nikzad,Hossein.
Diabetes mellitus is a frequent and serious metabolic illness all over the world and plants have been a desirable source of medicine recently. Diabetes has unpleasant effect on male reproductive system and it may lead to male infertility. It causes erectile dysfunction and reduces ejaculate volume by affecting the health of small blood vessels and the small nerves that control ejaculation and also decreases libido by decreasing testosterone levels. Current study evaluated the possible protective efficiency of Lepidium sativum (Garden cress) seed extract on fasting blood sugar (FBS) and then assessed histopathological change of epididymis in streptozotocine (STZ)-induced diabetic rats. We randomly categorized 50 adult male Wistar rats into five groups (each...
Tipo: Journal article Palavras-chave: Diabetes; Epididymis; Lepidium sativum (garden cress); Streptozotocine; Insulin.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200036
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Scrotal Circumference and Testicular Morphometric Characteristics of the Camel (Camelus Dromedarius) in the Semi-Arid Environment of Northern Nigeria International Journal of Morphology
Ali Abdullahi,Ibrahim; Al-Hassan Musa,Hassan; Jibril,Aliyu.
Reproductive tract of 12 camels (Camelus dromedarius) were used to evaluate testicular morphometry. The testicular morphometric characteristics measured were scrotal circumference (in situ), paired testis weight, epididymal weight and mean epididymal length, testis volume, and testis density. There were no significant difference (p &gt;0.05) between the left and right organs, but there were numerical differences between all the parameters. A highly significant positive correlations (p <0.05, p <0.01, p <0.001) exist between the scrotal circumference, testicular and epididymal morphometry, except for testis density which is non- significant (p &gt;0.05). It was concluded that testicular morphometry would provide reliable information in...
Tipo: Journal article Palavras-chave: Camels; Scrotal circumference; Testicular morphometry; Epididymis; Semi-arid.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400019
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Structural Modification of the Black Bengal Buck (Capra hircus) Acrosome During Post-testicular Maturation of Spermatozoa International Journal of Morphology
Datta,Uttam; Bandopadhyay,Soumendra Kumar; Hembram,Manik Lal.
The present study was conducted to measure various biometric parameters of intact/normal acrosomes (AC) collected respectively from caput, corpus and cauda epididymis and vas deferens of Black Bengal buck. Giemsa stained acrosomes were measured after camera lucida drawings. Observations revealed dimensional characters of the acrosomal cap diminished gradually and significantly (p<0.01, p<0.05) during spermatozoa maturation phases in the different regions of the excurrent duct. Shape and size of the AC were also found to be influenced significantly (p<0.01, p<0.05) by the age and body weight of the animals. The structural modification along with decrease in the morphology of the AC reflected one of the maturational indexes of the male gametes in...
Tipo: Journal article Palavras-chave: Black Bengal buck; Epididymis; Acrosome; Biometry.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000400059
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The Effects of Vasectomy on Epididymal Morphology and Sperm Parameters in Adult Male Balb/c mice International Journal of Morphology
Amini Mahabadi,Javad; Nikzad,Hossein; Taherian,Aliakbar; Mohammadi,Forouzan.
Vasectomy is a common contraceptive procedure in men. The present study is aimed to explore the impact of vasectomy on epididymal morphology and sperm parameters in adult male Balb/c mice. Twenty adult (age: 8 weeks) male Balb/c mice, weighting 20-30 g were used in the experiments. They were divided into 2 groups (vasectomy and sham). The operations were performed under sodium pentobarbital (40 mg/kg body weight, IP) anesthesia via a lower mid-abdominal incision. The left epididymis caput was fixed for histological studies and the right one was used for sperm count and motility. Progressive fast and slow sperm motility were significantly decreased in the vasectomized compared to the sham operation group (P<0.05) and the number of immotile sperm in the...
Tipo: Journal article Palavras-chave: Vasectomy; Epididymis; Mice; Sperm Motility.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400032
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Zinc Iodide-Osmium Tetroxide (ZIO) Reactive Golgi Apparatus in the Principal Cells of Dog Epididymal Epithelium International Journal of Morphology
Schimming,Bruno Cesar; Vicentini,Carlos Alberto.
The cisternae of the Golgi apparatus of dog epididymal principal cells were labeled by the zinc iodide-osmium tetroxide method (ZIO). These cisternae were observed in the supranuclear region of the cytoplasm of the epididymal principal cells. Abundant endoplasmic reticulum cisternae, multivesicular bodies, mitochondria, lysosomes and vesicular elements of variable size were also found in this region, all associated with the sacks of the well-developed Golgi apparatus. The use of the ZIO method facilitates the observation and identification of the cisternae of the Golgi apparatus, thus permitting a correlation between structure and function in the so-called Golgi area. These ultrastructural characteristics support the secretory role of epididymal principal...
Tipo: Journal article Palavras-chave: Epididymis; Principal cells; Golgi apparatus; ZIO method.
Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000400009
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