Tag: Male infertility

Sertoli‑cell‑only syndrome is a severe testicular disorder in which seminiferous tubules contain only Sertoli cells and no germ cells. Caused by AZFa microdeletions, germ‑cell developmental gene mutations or acquired testicular injury, SCOS represents an advanced form of non‑obstructive azoospermia with major implications for fertility and genetic counselling.

Non‑obstructive azoospermia is a severe form of male infertility caused by failure of spermatogenesis. Genetic defects, Y‑chromosome microdeletions, meiotic‑gene mutations and hormonal disorders lead to complete absence of sperm in the ejaculate. Understanding NOA is essential for diagnosis, genetic counselling and identifying candidates for micro‑TESE and assisted reproduction.

SYCP3 is a meiosis‑specific protein essential for chromosomal synapsis and the formation of the synaptonemal complex. Mutations in SYCP3 are linked to meiotic arrest, infertility, and genomic instability.

Spermatogenesis is the complex process through which male germ cells develop into mature spermatozoa. This article explains its stages, regulation, and importance in male fertility.