scholarly journals Testicular histomorphometrics including Sertoli cell quantitation for evaluating hatchability and fertility issues in commercial breeder-broiler roosters

2018 ◽  
Vol 97 (5) ◽  
pp. 1738-1747 ◽  
Author(s):  
Floyd D. Wilson ◽  
Deirdre I. Johnson ◽  
Danny L. Magee ◽  
Frederic J. Hoerr
Keyword(s):  
Sertoli Cell ◽  
Commercial Breeder

Freeze-etch observations on the tight junctions of sertoli cells grown in organ culture with FSH

1978 ◽  
Vol 36 (2) ◽  
pp. 340-341
Author(s):  
Rita Meyer ◽  
Zoltan Posalaky ◽  
Dennis Mcginley
Keyword(s):  
Organ Culture ◽  
Tight Junctions ◽  
Sertoli Cell ◽  
Germ Cells ◽  
Sertoli Cells ◽  
Barrier Function ◽  
Cell Junction ◽  
Intramembranous Particles ◽  
Junctional Complexes ◽  
Oriented Parallel

The Sertoli cell tight junctional complexes have been shown to be the most important structural counterpart of the physiological blood-testis barrier. In freeze etch replicas they consist of extensive rows of intramembranous particles which are not only oriented parallel to one another, but to the myoid layer as well. Thus the occluding complex has both an internal and an overall orientation. However, this overall orientation to the myoid layer does not seem to be necessary to its barrier function. The 20 day old rat has extensive parallel tight junctions which are not oriented with respect to the myoid layer, and yet they are inpenetrable by lanthanum. The mechanism(s) for the control of Sertoli cell junction development and orientation has not been established, although such factors as the presence or absence of germ cells, and/or hormones, especially FSH have been implicated.

1419: A Multi-Step Kinase-Based Sertoli Cell Autocrine-Amplifying Loop Regulates Prostaglandins, their Receptors, and Cytokines

2006 ◽  
Vol 175 (4S) ◽  
pp. 458-458
Author(s):  
Tomomoto Ishikawa ◽  
Masato Fujisawa ◽  
Patricia L. Morris
Keyword(s):  
Sertoli Cell

STAGE-DEPENDENT SERTOLI CELL FUNCTIONS

1983 ◽  
Vol 104 (2_Supplb) ◽  
pp. S53-S57 ◽  
Author(s):  
M Parvinen
Keyword(s):  
Sertoli Cell ◽  
Cell Functions

NEW VIEWS ON THE HORMONE-PRODUCING MESENCHYMOMAS OF THE OVARIES

1960 ◽  
Vol XXXV (IV) ◽  
pp. 513-517
Author(s):  
W. P. Plate
Keyword(s):  
Granulosa Cell ◽  
Sertoli Cell ◽  
Leydig Cell ◽  
Cell Tumour ◽  
Theca Cell ◽  
Granulosa Cell Tumour ◽  
Sertoli Cell Tumours ◽  
Leydig Cell Tumours

ABSTRACT The hormone-producing mesenchymomas of the ovaries can be divided into androblastomas and gynaecoblastomas. The former are derived from »male« elements, and consist of Sertoli-cell tumours and Leydig-cell tumours. The latter arise from »female« elements and consist of granulosacell tumours and theca-cell tumours. Sertoli-cell tumours and granulosacell tumours produce oestrogens, while Leydig-cell tumours and theca-cell tumours produce oestrogens or androgens. Histologically, androblastomas and gynaecoblastomas are often difficult to distinguish. Since no »female« elements occur in a testicle, a granulosa-cell tumour in a testicle is improbable. Gynandroblastomas, therefore, can only be found in an ovary.

Acute reduction of Sertoli cell numbers during development leads to a subsequent reduction in sperm numbers in adulthood

2014 ◽  
Author(s):  
Annalucia L Darbey ◽  
Peter O'Shaughnessy ◽  
Jean-Luc Pitetti ◽  
Serge Nef ◽  
Lee Smith ◽  
...  
Keyword(s):  
Sertoli Cell ◽  
Subsequent Reduction ◽  
Cell Numbers

Spermatogenesis and testicular tumours in ageing dogs

Reproduction ◽  
2000 ◽  
pp. 443-452 ◽  
Author(s):  
MA Peters ◽  
DG de Rooij ◽  
KJ Teerds ◽  
I van Der Gaag ◽  
FJ van Sluijs
Keyword(s):  
Sertoli Cell ◽  
Leydig Cell ◽  
Seminiferous Tubules ◽  
Score System ◽  
Testicular Tumours ◽  
Severe Impairment ◽  
Per Se ◽  
Testicular Disease ◽  
Sertoli Cell Tumours ◽  
Leydig Cell Tumours

Spermatogenesis was examined in testes from 74 dogs of various breeds without clinically detected testicular disease. A modified Johnsen score system was used to determine whether spermatogenesis deteriorates with ageing. The diameter of seminiferous tubules was measured in dogs without testicular disease to examine other possible effects of ageing on tubular performance. There appeared to be no relation between age and these variables. The influence of testicular tumours on spermatogenesis was also investigated in both affected and unaffected testes. The testes of 28 dogs with clinically palpable tumours and 21 dogs with clinically non-palpable tumours were investigated. In cases of unilateral occurrence of a tumour, impairment of spermatogenesis was observed only in the affected testis of dogs with clinically detected tumours. Bilateral occurrence of tumours, whether detected clinically or non-clinically, was associated with severe impairment of spermatogenesis. The prevalence of tumours increased during ageing. Eighty-six per cent of the clinically detected and 57% of the non-clinically detected tumours were found in old dogs. Multiple types of tumour and bilateral occurrence were very common. Seminomas and Leydig cell tumours were more frequent than Sertoli cell tumours. It was concluded that spermatogenesis per se did not decrease during ageing in dogs but the occurrence of testicular tumours increased with ageing and affected spermatogenesis significantly, as reflected by a lower Johnsen score.

Sertoli Cell Efficiency of the Neotropical Bats Anoura geoffroyi, Artibeus lituratus and Myotis levis (Mammalia: Chiroptera)

2019 ◽  
Vol 20 (2) ◽  
pp. 493
Author(s):  
Pedro I. M. Viana ◽  
Talita O. Farias ◽  
Sonia A. Talamoni ◽  
Hugo P. Godinho
Keyword(s):  
Sertoli Cell ◽  
Cell Efficiency ◽  
Neotropical Bats ◽  
Anoura Geoffroyi ◽  
Artibeus Lituratus

Role of Sertoli Cell Proteins in Immunomodulation

2018 ◽  
Vol 25 (5) ◽  
pp. 440-445 ◽  
Author(s):  
Giovanni Luca ◽  
Tiziano Baroni ◽  
Iva Arato ◽  
Barbara C. Hansen ◽  
D. F. Cameron ◽  
...  
Keyword(s):  
Sertoli Cell
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