Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1995-4-12
pubmed:abstractText
Early morphological changes in the rat Sertoli cell induced by the fungicide carbendazim (methyl-2-benzimidazole carbamate; MBC), a metabolite of benomyl, were examined. Adult rats were treated with single doses of MBC (400 mg/kg) or vehicle and examined by light and electron microscopy at 3 hr post-treatment. Sloughing of elongating spermatid clusters was observed in all stages of spermatogenesis, except for Stages III-V. Cleavage occurred near the apical region of the seminiferous epithelium where cytoplasmic processes of the Sertoli cell surround the heads of elongating spermatids. The cleaved cytoplasm remained attached to the sloughed spermatids and ectoplasmic specializations remained undamaged. Intact microtubules were observed in the apical Sertoli cell cytoplasm (including sloughed tissues) but were decreased in the body region, where aggregates of mitochondria were found. Cytoplasm near the cleavage site exhibited rarefaction, which was associated with swollen cisternae of endoplasmic reticulum. It appears that the mechanism of germ cell sloughing induced by MBC treatment involves the disruption of microtubules in the body region of the Sertoli cell, the retraction of cytoplasmic organelles and the swelling of endoplasmic reticulum.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0040-8166
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
917-27
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Morphological changes in the rat Sertoli cell induced by the microtubule poison carbendazim.
pubmed:affiliation
Department of Veterinary Biosciences, College of Veterinary Medicine, University of Illinois, Urbana 61801.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.