Results 181 to 190 of about 27,731 (238)
Sertoli-Sertoli and Sertoli-Germ Cell Interactions and Their Significance in Germ Cell Movement in the Seminiferous Epithelium during Spermatogenesis [PDF]
Endocrine Reviews, 2004 Spermatogenesis is the process by which a single spermatogonium develops into 256 spermatozoa, one of which will fertilize the ovum. Since the 1950s when the stages of the epithelial cycle were first described, reproductive biologists have been in pursuit of one question: How can a spermatogonium traverse the epithelium, while at the same time ...
C Yan Cheng +2 more
exaly +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Morphological evidence for calcium stores at Sertoli-Sertoli and Sertoli-spermatid interrelations
Cell Biology International Reports, 1985Potassium pyroantimonate technique has been employed to localize calcium ultrastructurally at Sertoli-Sertoli and Sertoli-spermatid junctional specializations. Identification of Ca++ as the major cation precipitated was performed by EGTA sensitivity and X-ray microprobe analysis.
E, Franchi, M, Camatini
openaire +2 more sources
American Journal of Anatomy, 1983
AbstractSertoli–Sertoli and Sertoli–germ‐cell configurational relationships were studied using morphometric techniques and direct measurements as obtained from micrographs used to reconstruct a model of a rat stage V Sertoli cell. Regional areas of the Sertoli cell surface, which faced germ cells, other Sertoli cells, or noncellular structures, were ...
J E, Weber +3 more
openaire +2 more sources
AbstractSertoli–Sertoli and Sertoli–germ‐cell configurational relationships were studied using morphometric techniques and direct measurements as obtained from micrographs used to reconstruct a model of a rat stage V Sertoli cell. Regional areas of the Sertoli cell surface, which faced germ cells, other Sertoli cells, or noncellular structures, were ...
J E, Weber +3 more
openaire +2 more sources
Journal of Ultrastructure Research, 1983
Sertoli cells of lizards are characterized by variable size, abundant smooth and rough endoplasmic reticulum, multivesicular bodies, lipid vacuoles probably related to the spermatogenic cycle, and mitochondria of normal size. The cytoskeleton contains actin, particularly abundant in the cell periphery, vimentin all around the nucleus and throughout the
B, Baccetti +3 more
openaire +2 more sources
Sertoli cells of lizards are characterized by variable size, abundant smooth and rough endoplasmic reticulum, multivesicular bodies, lipid vacuoles probably related to the spermatogenic cycle, and mitochondria of normal size. The cytoskeleton contains actin, particularly abundant in the cell periphery, vimentin all around the nucleus and throughout the
B, Baccetti +3 more
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +3 more sources
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
openaire +3 more sources
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.
openaire +2 more sources
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.
openaire +2 more sources
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
openaire +2 more sources
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.
openaire +1 more source
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.
openaire +1 more source