Document Detail


Cellular interrelationships in the fetal rabbit testis.
MedLine Citation:
PMID:  742939     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The types and patterns of arrangement of membrane interrelationships in the fetal rabbit testis were studied, using coordinated freeze-fracture, lanthanum tracer and standard transmission electron microscopic techniques. The testicular cords contain a mixture of large spherical germ cells and oval to elongated Sertoli cells. Desmosomes are present between germ cells and Sertoli cells and between adjacent Sertoli cells. Tight junctional specializations of the type found between Sertoli cells in the adult are not seen. In freeze-fracture replicas, short strands of particles of two different size populations are found on the surfaces of Sertoli cells. Similar short strands of particles are present on the membranes of peritubular myoid cells. In lanthanum preparations, the tracer passes freely between peritubular cells and through intercellular spaces within the seminiferous cords, indicating lack of a barrier to its passage throughout the testicular tissue. Prominent macular gap junctions similar to those found between adult Leydig cells are readily observed on the surfaces of fetal Leydig cells. The presence of gap junctions in the fetal testis may be important in coordinating the active testosterone production which occurs during this period of development.
Authors:
B Gondos; C J Connell
Related Documents :
8742059 - Lamina propria of sex cords in human fetal testis: an immunohistological and stereologi...
5764119 - Cellularity of rat adipose tissue: effects of growth, starvation, and obesity.
16142609 - Morphometric studies on the testis of korean ring-necked pheasant (phasianus colchicus ...
3001409 - The adrenal secretion of progesterone stimulates testicular steroidogenesis in the rat ...
16777379 - Sesquiterpene lactone helenalin suppresses leydig and adrenocortical cell steroidogenes...
2293029 - Testosterone decreases ornithine decarboxylase messenger rna levels in primary cultures...
8023949 - Ozone-induced release of cytokines and fibronectin by alveolar macrophages and airway e...
2883069 - Histological and immunohistochemical study on ontogeny of the endocrine cells in the qu...
23284769 - Cell surface concentrations and concentration ranges for testing in vitro autocrine loo...
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Archives of andrology     Volume:  1     ISSN:  0148-5016     ISO Abbreviation:  Arch. Androl.     Publication Date:  1978  
Date Detail:
Created Date:  1979-04-25     Completed Date:  1979-04-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7806755     Medline TA:  Arch Androl     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  19-30     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Animals
Cell Membrane / ultrastructure
Fetus / ultrastructure*
Germ Cells / ultrastructure
Intercellular Junctions / ultrastructure*
Leydig Cells / ultrastructure
Male
Rabbits
Sertoli Cells / ultrastructure
Testis / ultrastructure*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Corrective surgery of obstructive azoospermia.
Next Document:  Subunit structure of Eutherian sperm chromatin.