Gut protein zonulin: a hidden clue to male infertility?
Knowledge-focused
Completed
This study looks at whether levels of a protein called zonulin, found in blood and semen, differ between infertile men with and without varicocele (enlarged veins in the scrotum). Researchers will measure zonulin in 119 men and compare it with standard semen quality measures like…
Sponsor: Süleyman Tümer Çalışkan • Aim: Knowledge-focused
Last updated Aug 07, 2026 00:00 UTC