Effects of myoinositol on sperm mitochondrial function in-vitro

Area of Science:

• Biochemistry
• Reproductive Biology
• Cell Biology

Background:

• Myo-inositol (MYO), a vital form of vitamin B complex, plays a crucial role in cellular signaling and male reproductive functions.
• MYO influences sperm motility, capacitation, acrosome reaction, and has potential antioxidant properties.
• It is involved in regulating seminal plasma osmolarity and proteins essential for embryogenesis and sperm attraction.

Purpose of the Study:

• To investigate the impact of MYO on sperm mitochondrial function and apoptosis in men.
• To assess MYO's effects on specific sperm parameters related to viability and integrity.

Main Methods:

• Spermatozoa from normozoospermic men and oligo-astheno-teratozoospermia (OAT) patients were incubated with MYO or placebo.
• Flow cytometry was used to evaluate mitochondrial membrane potential (MMP), phosphatidylserine (PS) externalization, and chromatin compactness.

Main Results:

• MYO significantly enhanced mitochondrial function in OAT patient spermatozoa, increasing high MMP and decreasing low MMP.
• No significant effects of MYO were observed on PS externalization or chromatin compactness in either group.
• MYO did not alter mitochondrial function in spermatozoa from normozoospermic men.

Conclusions:

• MYO demonstrates a capacity to improve mitochondrial function in spermatozoa from OAT patients.
• These findings suggest that MYO could be a valuable therapeutic agent for treating male infertility.