Comparative morphometric and glycohistochemical studies on the epididymal duct in the donkey (Equus asinus) and dromedary camel (Camelus dromedarius)

Alkafafy, Mohamed; Ebada, Safwat; Rashed, Reda; Attia, Hossam Fouad

doi:10.1016/j.acthis.2011.08.005

Cited by 11 publications

(17 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The levels of ACP activity reflect prostate function in dogs [28], and increased levels of ACP are associated with prostate cancer in humans [29-31]. In stallion, studies on ACP have been limited to epididymal tissue but not on seminal plasma [32]. The levels of both ALP and ACP in seminal plasma are positively correlated with the sperm count and negatively with semen volume in horses and they are believed to be under androgenic control [15,27].…”

Section: Discussionmentioning

confidence: 99%

Biochemical components of seminal plasma and their correlation to the fresh seminal characteristics in Marwari stallions and Poitou jacks

Mal

Ravi

2017

Vet World

View full text Add to dashboard Cite

Aim:To investigate various biochemical components of seminal plasma in Marwari stallions and Poitou Jacks and to find out their correlation with that of the seminal characteristics.Materials and Methods:In this study, semen was collected from six Marwari stallions and six Poitou jacks aged from 4 to 6 years and with known fertility status. The semen collection from the stallions were collected during the breeding season, i.e., between the months of April and June. From the collected semen ejaculates, we estimated the values of some biochemical components, viz., total protein content, total lipid content, and enzymes such as glutamic pyruvic transaminase (GPT), glutamic oxaloacetic transaminase (GOT), alkaline phosphatase (ALP), acid phosphatase (ACP), and lactate dehydrogenase (LDH) as well as concentrations of glucose, cholesterol, total calcium (Ca), and phosphorus (P) and correlations among different seminal parameters were statistically examined using the Pearson correlation coefficient.Results:In this study, we found positive correlations between semen volume as well as sperm concentration and GOT, GPT, ALP and ACP for both the group stallions. Significant correlation between motility and glucose, GOT and GPT could be an indication for their role metabolism and protection against free radicals to the spermatozoa.Conclusion:Based on the results, it is concluded that there is a positive correlation between some biochemical values such as glucose, Ca, ALP, and LDH and seminal parameters which play a key role in capacitation and onward movement of the spermatozoa.

show abstract

Section: Discussionmentioning

confidence: 99%

Biochemical components of seminal plasma and their correlation to the fresh seminal characteristics in Marwari stallions and Poitou jacks

Mal

Ravi

2017

Vet World

View full text Add to dashboard Cite

show abstract

“…Perhaps, processes of cellular resorption of water, salt ions and macromolecules as well as protein secretion occurred in this segment, according to its ultrastructural characteristics and with previous support in other morphological studies in mammalian epididymis (Flickinger 1983, Arrighi et al 1993. Alkafafy et al (2012) reported that the distal regions of camel epididymis may possess some secretory potential. According to Beu et al (2009), the cauda epididymidis is the site where spermatozoa acquire their fertilization potential.…”

Section: Discussionmentioning

confidence: 72%

“…However, clear cells were not described in stallion, ram, and bull (Nicander 1957, Goyal 1985, monkey (Ramos & Dym 1977), pigs (Orsi et al 1985); cat (Arrighi et al 1986), goat (Goyal & Williams 1991), and donkey and dromedary camel (Alkafafy et al 2012). Chandler et al (1981) did not report these cellular type in the dog epididymis, although, Schimming & Vicentini (2001) observed clear cells in the canine epididymis.…”

Section: Discussionmentioning

confidence: 90%

“…Dadoune (1981) reported that the basal cells function is to renew the principal cells in the epididymis. Although their function is to great extent unknown (Alkafafy et al 2012).…”

Section: Discussionmentioning

confidence: 99%

“…The epithelium lining of the epididymis of mammals, because of its role in providing a suitable milieu for the maturation of spermatozoa, has been the object of numerous cytological and histochemical investigations (Robaire & Hermo 1988, Robaire & Viger 1995, Schimming & Vicentini 2005, Lorenzana et al 2007, Alkafafy et al 2012.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ultrastructure of the epithelium lining of cauda epididymidis in mongrel dogs

et al. 2012

View full text Add to dashboard Cite

Pesq. Vet. Bras. 32(Supl.1):32-36, dezembro 2012 32 RESUMO.-[Ultraestrutura do epitélio de revestimento da cauda epididimária em cães sem raça definida.] O epitélio de revestimento da cauda epididimária em cães sem raça definida foi examinado através da microscopia eletrônica de transmissão. O epitélio epididimário é pseudoestratificado com estereocílios na borda luminal e é composto principalmente por células principais e claras. Além destes tipos, foi observado algumas células basais e apicais. As células principais e claras apresentaram características ultra-estruturais que sugerem que as mesmas estão envolvidas com funções absortivas e secretórias. Os resultados foram comparados com estudos prévios realizados na cauda do ducto epididimário de outros mamíferos, com o objetivo de melhor entender o papel do epidídimo na maturação espermática.TERMOS DE INDEXAÇÃO: Cauda epididimária, caninos, morfologia, ultra-estrutura. INTRODUCTIONThe epididymis represents the main segment of the excurrent ducts in mammals. According to Bedford (1966) The epithelium lining of cauda epididymidis in mongrel dogs was examined by transmission electron microscopy. The epididymal epithelium is pseudostratified with stereocilia and is composed predominantly of principal and clear cells. Therefore, exist basal and apical cells. The principal and clear cells show features suggesting that they may be preferentially involved in absorptive and secretive functions. These results are compared with previously published data on the cauda epididymidis of other mammalian species, in order to understand the significance of the epididymis in sperm maturation.

show abstract

Mapping the sites of localization of epithelial sodium channel (ENaC) and CFTR in segments of the mammalian epididymis

Sharma

Hanukoglu

2019

J Mol Hist

View full text Add to dashboard Cite

Comparative morphometric and glycohistochemical studies on the epididymal duct in the donkey (Equus asinus) and dromedary camel (Camelus dromedarius)

Cited by 11 publications

References 52 publications

Biochemical components of seminal plasma and their correlation to the fresh seminal characteristics in Marwari stallions and Poitou jacks

Biochemical components of seminal plasma and their correlation to the fresh seminal characteristics in Marwari stallions and Poitou jacks

Ultrastructure of the epithelium lining of cauda epididymidis in mongrel dogs

Mapping the sites of localization of epithelial sodium channel (ENaC) and CFTR in segments of the mammalian epididymis

Contact Info

Product

Resources

About