Linked Life Data

12823627

Source:http://linkedlifedata.com/resource/pubmed/id/12823627

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2003-6-25
pubmed:abstractText
With a view to elucidate seasonal variations in testicular spermatogenesis, quantitative analysis of spermatogenic cells was carried out in non-human primate species viz. rhesus (Macaca mulatta) and bonnet (M. radiata) monkeys during breeding (October-December) and non-breeding (May-June) seasons. The results revealed significant inhibition of testicular germ cell population during non-breeding compared with the breeding period in both the species. Quantitative determination of Sertoli cell-germ cell ratio showed a marked decrease in the number of type A-spermatogonia, spermatocytes (non-pachytene and pachytene) and spermatids (in steps 1-12 of spermiogenesis) in rhesus monkey during the non-breeding period. Bonnet monkeys exhibited the significant decline in the number of primary spermatocytes and spermatids during the non-breeding phase. In addition, average diameter of round seminiferous tubules and nuclear diameter of Leydig cells also decreased significantly in rhesus monkeys. However, bonnet monkeys did not show any significant change in nuclear diameter/morphology of Leydig cells, testicular tubular diameter and number of type A-spermatogoniae. Sertoli cell number did not show any significant change during both breeding and non-breeding periods in both the species. The results of this study indicate a prominent seasonal variation in testicular spermatogenic/Leydig cells in rhesus monkeys than those observed in bonnet monkeys.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0047-2565
pubmed:author
pubmed:issnType
Print
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
170-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Seasonal changes in the seminiferous epithelium of rhesus and bonnet monkeys.
pubmed:affiliation
Division of Endocrinology, Central Drug Research Institute, Lucknow, India. bansodefw@rediffmail.com
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't