Results 221 to 230 of about 38,291 (273)
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Histopathology, 1990
Histological study of testicular biopsies from infertile men showing Sertoli‐cell‐only tubules due to hypogonadotropic hypogonadism, cryptorchidism, oestrogen treatment, chemotherapy or Del Castillo's syndrome, revealed four types of Sertoli cells: (1) normal adult mature cells showing an indented nucleus, grossly triangular in shape with a prominent ...
M, Nistal, F, Jimenez, R, Paniagua
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Histological study of testicular biopsies from infertile men showing Sertoli‐cell‐only tubules due to hypogonadotropic hypogonadism, cryptorchidism, oestrogen treatment, chemotherapy or Del Castillo's syndrome, revealed four types of Sertoli cells: (1) normal adult mature cells showing an indented nucleus, grossly triangular in shape with a prominent ...
M, Nistal, F, Jimenez, R, Paniagua
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Journal of Veterinary Medicine Series A, 2004
SummaryA Sertoli cell tumour occurred in a cryptorchid testis of a 1‐year‐old cat with no signs of feminization. The tumour showed intratubular growth without interstitial infiltration and the neoplastic cells appeared polymorphous and vacuolated. Mitotic figures were rare.
BENAZZI, CINZIA +2 more
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SummaryA Sertoli cell tumour occurred in a cryptorchid testis of a 1‐year‐old cat with no signs of feminization. The tumour showed intratubular growth without interstitial infiltration and the neoplastic cells appeared polymorphous and vacuolated. Mitotic figures were rare.
BENAZZI, CINZIA +2 more
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2009
The cytoskeleton of terminally differentiated mammalian Sertoli cells is one of the most elaborate of those that have been described for cells in tissues. Actin filaments, intermediate filaments and microtubules have distinct patterns of distribution that change during the cyclic process of spermatogenesis. Each of the three major cytoskeletal elements
A Wayne, Vogl +2 more
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The cytoskeleton of terminally differentiated mammalian Sertoli cells is one of the most elaborate of those that have been described for cells in tissues. Actin filaments, intermediate filaments and microtubules have distinct patterns of distribution that change during the cyclic process of spermatogenesis. Each of the three major cytoskeletal elements
A Wayne, Vogl +2 more
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American Journal of Anatomy, 1977
AbstractSeminiferous tubules, partially dilated by ligation of the efferent ductules, were examined after treatment with lanthanum. Lanthanum penetrated the intercellular spaces of the seminiferous epithelium, but only to the level of the Sertoli‐Sertoli junctions.
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AbstractSeminiferous tubules, partially dilated by ligation of the efferent ductules, were examined after treatment with lanthanum. Lanthanum penetrated the intercellular spaces of the seminiferous epithelium, but only to the level of the Sertoli‐Sertoli junctions.
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Spermatogenesis and the Sertoli Cell
1983The pioneering studies by Greep and co-workers (Greep et al. 1936) established that two gonadotrophic hormones FSH and LH could be extracted from mammalian pituitary glands. From these observations and the studies of Smith on hypophysectomised animals (Smith 1930) the concept was developed that FSH acted on the seminiferous tubules and LH on the ...
K A, Rich, D M, de Kretser
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2018
There is more than a century and a half that the polarized Sertoli cell which extends from the base of the seminiferous tubule to its lumen has been identified as being a “nurse cell” for germ cells. This Sertoli cell nursing function relies on a cytosqueleton displaying all possible properties of plasticity to adapt to the cyclicity of spermatogenesis,
Jégou, Bernard, Rolland, Antoine D.
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There is more than a century and a half that the polarized Sertoli cell which extends from the base of the seminiferous tubule to its lumen has been identified as being a “nurse cell” for germ cells. This Sertoli cell nursing function relies on a cytosqueleton displaying all possible properties of plasticity to adapt to the cyclicity of spermatogenesis,
Jégou, Bernard, Rolland, Antoine D.
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General and Comparative Endocrinology, 1972
Abstract Electron-microscopic studies indicate that Sertoli cells often possess the fine structure normally associated with steroid-producing tissues. In addition, a Δ 5 -3 β -hydroxysteroid dehydrogenase reaction has been recorded in these cells throughout the vertebrate series.
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Abstract Electron-microscopic studies indicate that Sertoli cells often possess the fine structure normally associated with steroid-producing tissues. In addition, a Δ 5 -3 β -hydroxysteroid dehydrogenase reaction has been recorded in these cells throughout the vertebrate series.
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Hepatocyte growth factor modulates Sertoli–Sertoli tight junction dynamics
Journal of Cellular Physiology, 2008AbstractIn mammalian testes Sertoli cells form tight junctions whose function is fundamental for the maintenance of a normal spermatogenesis. Hepatocyte growth factor (HGF) is a cytokine influencing the cellular tight junctions either in normal or in tumor cells.
CATIZONE A., RICCI, Giulia, GALDIERI M.
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Morphologie : bulletin de l'Association des anatomistes, 2012
The Sertoli cell is essential for the formation and functioning of the testis. This is the first cell to differentiate into the initially bipotential genital ridge and is the only somatic cell present in seminiferous tubules. Maturation involves the loss of proliferative capacity, formation of intercellular tight junctions and the appearance of some ...
C, Ravel, S, Jaillard
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The Sertoli cell is essential for the formation and functioning of the testis. This is the first cell to differentiate into the initially bipotential genital ridge and is the only somatic cell present in seminiferous tubules. Maturation involves the loss of proliferative capacity, formation of intercellular tight junctions and the appearance of some ...
C, Ravel, S, Jaillard
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Sertoli cell testicular tumors
Urology, 1981The testicular Sertoli cell tumor is generally considered a benign tumor that can be treated by orchiectomy and close follow-up. It accounts for less than 1.5 per cent of testis tumors and may be malignant in 10 per cent of cases. Approximately 30 per cent have endocrine activity. We present 5 additional cases to the 75 previously reported in the world
R, Littleton +3 more
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