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Spermatogonia, Germline Cells, and Testicular Organization in the Characiform Prochilodus lineatus Studied Using Histological, Stereological, and Morphometric Approaches
(Wiley-Blackwell, 2017-03-01)
Prochilodus lineatus is an important representative of the order Characiformes and a species that offers great advantages to fish farming. Therefore, detailed knowledge of its reproductive biology can be applied to various ...
Characterization of undifferentiated spermatogonia and the spermatogonial niche in the lambari fish Astyanax altiparanae
(2017-07-01)
Undifferentiated type A spermatogonia are the foundation of fish spermatogenesis. This cell population includes the spermatogonial stem cell population, which is able to either self-renew or differentiate into cells that ...
Ultrastructure of spermatogonia and primary spermatocytes of C57BL6J mice
(Blackwell Wissenschafts Verlag Gmbh, 2001-06-01)
The three types of spermatogonia were confirmed. Type A spermatogonia have a large nucleus and loose chromatin and are poor in endoplasmic reticulum. The second type, B spermatogonia, have rounded and smaller nuclei filled ...
Ultrastructure of spermatogonia and primary spermatocytes of C57BL6J mice
(Blackwell Wissenschafts Verlag Gmbh, 2001-06-01)
The three types of spermatogonia were confirmed. Type A spermatogonia have a large nucleus and loose chromatin and are poor in endoplasmic reticulum. The second type, B spermatogonia, have rounded and smaller nuclei filled ...
The efficiency of spermatogenesis and the support capacity of Sertoli cells in Characiformes
(2017-11-01)
This stereological analysis of the types of germ cells and the number of Sertoli cells per cyst in Astyanax altiparanae testes during spermatogenesis is the first such report in Characiformes. Testes of 25 male A. altiparanae ...
Vitamin B12-induced spermatogenesis recovery in cimetidine-treated rats: Effect on the spermatogonia number and sperm concentration
(2016-01-01)
The H2-receptor antagonist cimetidine is an antiulcer drug also used for the treatment of cancer due to its antiangiogenic effect. However, this drug has caused structural changes in the seminiferous tubules. Vitamin B12 ...
Vitamin B12-induced spermatogenesis recovery in cimetidine-treated rats: Effect on the spermatogonia number and sperm concentration
(2017-09-01)
The H2-receptor antagonist cimetidine is an antiulcer drug also used for the treatment of cancer due to its antiangiogenic effect. However, this drug has caused structural changes in the seminiferous tubules. Vitamin B12 ...
The antineoplastic busulphan impairs peritubular and Leydig cells, and vitamin B-12 stimulates spermatogonia proliferation and prevents busulphan-induced germ cell death
(Elsevier B.V., 2017-11-01)
Busulphan (Bu), an alkylating agent used for bone marrow and spermatogonial stem cell transplantation (SSCT), impairs Sertoli (SC) cells, which are necessary for the spermatogonial stem cell (SSC) homing during transplantation. ...
Isolation and molecular characterization of spermatogonia from male Sprague-Dawley rats exposed in utero and postnatally to dibutyl phthalate or acrylamide
(2019-09-02)
The increased incidence of testicular disorders in young men and the possible influence of environmental chemicals, such as dibutyl phthalate (DBP) and acrylamide (AA), requires experimental models for identifying modes ...
Spermatogonia and spermatocyte ultrastructure in Hoplias malabaricus (Teleostei, Characiformes : Erythrinidae)
(Cambridge University Press, 2002-07-01)
The Hoplias malabaricus primary spermatogonium shows a large nucleus, central nucleolus, and low electron-dense cytoplasm containing nuages. In cysts, they undergo several mitotic divisions with incomplete cytokinesis, ...