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Protection from radiation-induced damage of spermatogenesis in the rhesus monkey (Macaca mulatta) by follicle-stimulating hormone. 1989

M M van Alphen, and H J van de Kant, and D G de Rooij
Department of Cell Biology, State University of Utrecht, Medical School, The Netherlands.

In adult rhesus monkeys a two- to threefold increase in the number of spermatogonia was found at Day 75 after 1 Gy of X-irradiation when the animals were pretreated with two intramuscular injections of follicle-stimulating hormone (FSH) each day. Also the percentage of cross-sections of seminiferous tubules showing spermatogonia (repopulation index) was much higher when FSH was given before irradiation. At 75 days postirradiation the repopulation index was 39 +/- 10% after irradiation alone and 81 +/- 11% when FSH pretreatment was applied. The pretreatment with two injections of FSH each day during 16 days caused an increase in the number of proliferating A spermatogonia. In view of earlier results in the mouse, where proliferating spermatogonial stem cells appeared more radioresistant than quiescent ones, it is suggested that the protective effects of FSH treatment are caused by the increase in the proliferative activity of the A spermatogonia and consequently of the spermatogonial stem cells. The results indicate that in the rhesus monkey the maximal protective effect of FSH is reached after a period of treatment between 7 and 16 days.

UI MeSH Term Description Entries
D008253 Macaca mulatta A species of the genus MACACA inhabiting India, China, and other parts of Asia. The species is used extensively in biomedical research and adapts very well to living with humans. Chinese Rhesus Macaques,Macaca mulatta lasiota,Monkey, Rhesus,Rhesus Monkey,Rhesus Macaque,Chinese Rhesus Macaque,Macaca mulatta lasiotas,Macaque, Rhesus,Rhesus Macaque, Chinese,Rhesus Macaques,Rhesus Macaques, Chinese,Rhesus Monkeys
D008297 Male Males
D011837 Radiation-Protective Agents Drugs used to protect against ionizing radiation. They are usually of interest for use in radiation therapy but have been considered for other purposes, e.g. military. Radiation Protectant,Radiation Protective Agent,Radiation-Protective Agent,Radiation-Protective Drug,Radioprotective Agent,Radioprotective Agents,Radioprotective Drug,Agents, Radiation-Protective,Radiation Protectants,Radiation Protective Agents,Radiation-Protective Drugs,Radiation-Protective Effect,Radiation-Protective Effects,Radioprotective Drugs,Agent, Radiation Protective,Agent, Radiation-Protective,Agent, Radioprotective,Agents, Radiation Protective,Agents, Radioprotective,Drug, Radiation-Protective,Drug, Radioprotective,Drugs, Radiation-Protective,Drugs, Radioprotective,Effect, Radiation-Protective,Effects, Radiation-Protective,Protectant, Radiation,Protectants, Radiation,Protective Agent, Radiation,Protective Agents, Radiation,Radiation Protective Drug,Radiation Protective Drugs,Radiation Protective Effect,Radiation Protective Effects
D005640 Follicle Stimulating Hormone A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Follicle-stimulating hormone stimulates GAMETOGENESIS and the supporting cells such as the ovarian GRANULOSA CELLS, the testicular SERTOLI CELLS, and LEYDIG CELLS. FSH consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH, and FSH), but the beta subunit is unique and confers its biological specificity. FSH (Follicle Stimulating Hormone),Follicle-Stimulating Hormone,Follitropin
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013091 Spermatogenesis The process of germ cell development in the male from the primordial germ cells, through SPERMATOGONIA; SPERMATOCYTES; SPERMATIDS; to the mature haploid SPERMATOZOA. Spermatocytogenesis,Spermiogenesis

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