The acrosome is a specialized organelle that covers the anterior part of the sperm nucleus and plays an essential role in the process of fertilization. The molecular mechanism underlying the ...

Fertilization is the union of two cells: an egg and a sperm. Before the egg and the sperm fuse, an event known as the "acrosome reaction" needs to occur in the sperm. Now, a team from Osaka University ...

Our andrology laboratory offers several diagnostic tests that can help your treatment process, including semen analysis, sperm penetration assay, and an anti-sperm antibody test. The acrosome cap is a ...

Spermiogenesis is a fundamental process required for the generation of the mature male gamete with a vesicle-like acrosome, a propelling flagellum, and condensed nucleus, which are all necessary for ...

Osaka, Japan – Fertilization is the union of two cells: an egg and a sperm. Before the egg and the sperm fuse, an event known as the “acrosome reaction” needs to occur in the sperm. Now, a team from ...

Ferlins are a family of single transmembrane proteins with multiple calcium ion (Ca2+) binding C2 domains involved in Ca2+-mediated membrane fusion. Among other processes, ferlins participate in the ...

Ryoji Yao, Chizuru Ito, Yasuko Natsume, Yoshinobu Sugitani, Hitomi Yamanaka, Shoji Kuretake, Kaoru Yanagida, Akira Sato, Kiyotaka Toshimori, Tetsuo Noda Proceedings of the National Academy of Sciences ...

Sperm is a reproductive cell created in the testicles. Males produce millions of these cells each day, but it takes only one sperm to fertilize an egg. This article outlines what sperm are, where they ...

Refraining from sexual stimulation to the point of ejaculation. A compartment at the tip of the sperm head containing enzymes which will breakdown the protective outer layer of the egg. The process of ...

The rates of infertility continue to rise worldwide and are currently estimated to affect up to 170 million people. Male factors contribute to at least half of infertility cases, including hormonal ...