Some Comparative Immunohistochemical Studies on the Ductus Deferens in the Donkey (Equus asinus) and Water Buffalo Bull (Bubalus bubalis).

Alkafafy, Mohamed; Attia, Hossam Fouad; Rashed, Reda; Kandiel, Mohamed M.M.

doi:10.21608/jva.2010.42681

Cited by 4 publications

(9 citation statements)

References 45 publications

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“…On the other hand (15) has observed autonomic ganglion in adventitia of goat. Meanwhile (14) in bull and jackass noticed three layers in tunica muscularis (Inner longitudinal, middle and outer layers), also the epithelium height of ampulla in tomcat was lower than that recorded in the bull (64±10μm) and in jackass (21± 4μm).…”

Section: Resultsmentioning

confidence: 61%

“…The current result was in contrast with (12, 15 and 16) who recorded that the tunica mucosa was lined by pseudo stratified columnar epithelium. Meanwhile (14) in bull and jackass recorded tall columnar pseudo stratified epithelium in bull, and high simple cuboidal epithelium in jackass. The tunica muscularis was thick layer, measured about (198.5±6.07µm) and composed of circular oriented smooth muscle fibers ( fig.3).…”

Section: Resultsmentioning

confidence: 92%

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Histological Features of the Accessory Sex Gland of Indigenous Tom cat (Felis catus)

2019

AJVS

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The study was aimed to investigate the histological characteristics of the Tomcats accessory sex glands. A total of six indigenous Tom cats were used in this study. The samples of the ampulla of ductus deferens, prostate and bulbourethral glands were collected and fixed in 10% buffered formalin saline, and processed with routine paraffin technique. The tissue sections were stained by Hematoxyline & Eosin, Masson's trichrom and PAS stains. Results showed that the mucosa of ampulla has composed of tunica mucosa, muscularis, and adventitia. The tunica mucosa lined by mucous secreting cells which showed negative reaction for PAS stain and non-secreting cells which have intense reaction for PAS stain. The tunica muscularis composed of circular oriented smooth muscle fibers. The tunica adventia composed of dense irregular collagenous connective tissue. Prostate was large tubuloalveolar gland, surrounded the pelvic urethra; the gland consisted of very thick peri urethral tunica mucosa which lined with transitional epithelium. The prostatic lamina propria composed of collagen bundles, tubuloalveolar glands and manifested by many of like cavernous tissue wide veins. The prostate glandular epithelium was pseudo stratified columnar to low cuboidal which showed intense reaction for PAS stain. The muscularis of prostate composed of thick layer of skeletal muscle cells. The bulbourethral glands surrounded by a thick fibro-muscular capsule whose septa subdivided the gland into lobules. Each lobule composed of tubuloalveolar secretory units. The secretory units were lined by pseudo stratified to simple columnar epithelium supported by a thin layer of myoepithelial cells surrounds each alveolus. The cytoplasm of epithelial secretory units contained acidic secretory granules with Alcian blue (2.5pH) stains (fig.11, 12 & 13). It was concluded that tom cat's accessory glands has devoid of seminal vesicles and has well developed and functional prostate and bulbourethral glands.

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Section: Resultsmentioning

confidence: 61%

Section: Resultsmentioning

confidence: 92%

Histological Features of the Accessory Sex Gland of Indigenous Tom cat (Felis catus)

2019

AJVS

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“…The [22]. The circular profile predominates in the buffalo [4] and also in the goat ductus deferens. The outer longitudinal layer was distinct and consisted of coarse bundles of SMCs, particularly in the donkey [3].…”

Section: Light Microscopic Observationsmentioning

confidence: 99%

“…[13] used scanning and transmission electron microscopy to study the ampullary region of the dog vas deferens with special reference to epithelial phagocytosis of spermatozoa. Various components of the wall of the ductus deferens were observed to be spe-cificaly arranged, compared with other organs of comparable organization [4,9,10]. Immunohistochemically, some studies were made on the ductus deferens in the donkey and water buffalo bull [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…Various components of the wall of the ductus deferens were observed to be spe-cificaly arranged, compared with other organs of comparable organization [4,9,10]. Immunohistochemically, some studies were made on the ductus deferens in the donkey and water buffalo bull [3,4]. Specific types of cytokeratins in the epithelial cells, and desmin in the muscular layers during the various phases of the development, growth, and involution of the human ductus deferens has been defined [18].…”

Section: Introductionmentioning

confidence: 99%

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Immunohistochemical Study of the Goat Ductus deferens

Marettová

Maretta

2018

Folia Veterinaria

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Ductus deferens plays an important role in sperm transport and participates in the preservation of structure, maturation, and viability of sperm. In this study, we have immunohistochemically examined the ductus deferens in the goat. For immunohistochemical study the following monoclonal antibodies were used: cytokeratin 18, α-smooth muscle actin (α-SMA), vimentin and elastin. Morphologically, three distinct layers were identified in the goat ductus deferens — tunica mucosa, tunica muscularis and tunica adventitia. The epithelium of the mucosa was intensely stained with cytokeratin 18 (CK 18). The fibroblasts in the lamina propria and blood capillaries in the muscle layer showed positive reaction for vimentin. A positive reaction for α-SMA was observed in the smooth muscle cells of the tunica muscularis in the internal, middle and outer sublayers. An intense positive reaction for α-SMA was observed in the wall of the blood vessels. Elastic fibers in the form of a loose meshwork were present in all three layers. The high density of elastic fibers were found in the tunica adventitia.

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A possible highway system for the rapid delivery of sperm from the testis to the penis in the naked mole‐rat, Heterocephalus glaber

Horst

Kotzé

O’Riain

et al. 2021

Journal of Morphology

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Gametogenesis is suppressed in most members of the eusocial naked mole‐rat (NMR) colony, while the queen selects mainly one breeding male during her life span. Recently, it was reported that the NMR testicular organization seems to produce spermatozoa on demand after suppression of spermatogenesis during most of gestation. A Sertoli cell “pump” is then used to flush the spermatozoa into short tubuli recti and simplified rete testis to reach the excurrent duct system. We hypothesize that the components of this duct system are adapted for rapid delivery of spermatozoa to the penis and for numerous copulations with the queen. Therefore, the aim was to study the ultrastructure of the male NMR reproductive duct system using light microscopy and transmission electron microscopy. The NMR rete testis gives rise to six to eight efferent tubules joining the caput epididymis. The caput epididymis resembles that of other rodents but with less distinction in terms of histological zoning. The remainder of the epididymis is considerably reduced in length compared to other rodents. In contrast, the vas deferens epithelium is highly specialized in that a vast range of vesicles, often closely associated with the spermatozoa, were visible. The large ampulla is a factory for merocrine and apocrine secretions, producing even more diverse vesicles. The transitional epithelial cells of the bladder appear to secrete abundant mucous and the penis as well as its baculum is relatively small. We speculate that these modifications strongly suggest that the excurrent duct system has been simplified and adjusted to compensate for the absence of long maturation and storage of spermatozoa. We propose that these adaptations to the NMR reproductive tract are associated with a state of degenerative orthogenesis that was selected for due to the absence of sperm competition and apparently rapid delivery of spermatozoa from the testis.

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Some Comparative Immunohistochemical Studies on the Ductus Deferens in the Donkey (Equus asinus) and Water Buffalo Bull (Bubalus bubalis).

Cited by 4 publications

References 45 publications

Histological Features of the Accessory Sex Gland of Indigenous Tom cat (Felis catus)

Histological Features of the Accessory Sex Gland of Indigenous Tom cat (Felis catus)

Immunohistochemical Study of the Goat Ductus deferens

A possible highway system for the rapid delivery of sperm from the testis to the penis in the naked mole‐rat, Heterocephalus glaber

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