The failures of binding to the oocyte zona pellucida are commonly attributed to defects in the
sperm recognition, adhesion, and fusion molecules. SPAM1 (sperm adhesion molecule 1) is …

Increasing the age of bulls results in a decrease in reproductive function, including a
reduction in sperm quality, which plays a vital role in determining the fertility of bulls …

Sperm selection for assisted reproduction techniques is generally based on basic
parameters, while key aspects of sperm competence and its journey from the deposition site …

Globozoospermia is a rare and severe type of teratozoospermia characterized by the
presence of round-headed, acrosomeless spermatozoa with cytoskeleton defects. Current …

En primer lugar, esta tesis está dedicada a Serafín, mi director. Él me dio la oportunidad de
comenzar esta andadura, me ayudó desde el momento en que llegué a Madrid con más …