Dynamics of Spermatogenesis
V. Divya, V. Girish Kumar, S. Nandi, S. G. Ramchandra
Annual Research & Review in Biology · pp. 38–50 · Published 4 Oct 2013
10.9734/ARRB/2014/4289Abstract
Spermatogenesis is the lengthy and chronological process. Spermatogenesis is characterized by three specific functional phases: spermatocytogenesis, meiosis, and spermiogenesis; and it involves spermatogonia, spermatocytes, and spermatids respectively. Various growth factors play important role in spermatogenesis and up to 178 genes and proteins are being reported which play important role in the process of self renewal and meiosis during spermatogenesis. The duration of spermatogenesis can only be approximated for any species and it has been considered to be about 4.5 times the cycle length of a given species. Various factors play important role in controlling the spermatogenesis like hormones, age, drugs, diet etc among which hormone testosterone elicits an action through hormone response elements, thus altering gene expression. Thus spermatogenesis is a dynamic process with well organized cellular and molecular events resulting in release of large number spermatozoa with ability to continue life on this planet earth.
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