Coenzyme Q10 and male infertility

Area of Science:

• Reproductive Biology
• Nutritional Biochemistry
• Andrology

Background:

• Coenzyme Q10 (CoQ10), also known as ubiquinone, is present in human seminal fluid, playing crucial metabolic and antioxidant roles.
• Seminal CoQ10 levels correlate with sperm count and motility, and are altered in conditions like asthenozoospermia and varicocele (VAR).
• Previous research indicated CoQ10's potential role in male infertility, but its therapeutic effects required further investigation.

Purpose of the Study:

• To evaluate CoQ10 concentration and distribution in seminal plasma and spermatozoa in varicocele patients before and after surgery.
• To assess the impact of CoQ10 on sperm parameters in infertile patients undergoing recombinant human FSH therapy.
• To investigate the efficacy of CoQ10 supplementation in improving sperm motility and function in idiopathic asthenozoospermia.

Main Methods:

• Analysis of CoQ10 and ubiquinol levels in seminal plasma and spermatozoa.
• Evaluation of seminal parameters, including sperm motility, before and after medical/surgical interventions.
• Clinical trials involving patients with varicocele and idiopathic asthenozoospermia, with some receiving CoQ10 treatment.

Main Results:

• CoQ10 and ubiquinol levels significantly increased in seminal plasma and sperm cells post-treatment in idiopathic asthenozoospermia patients.
• Spermatozoa motility also showed significant improvement following CoQ10 administration.
• Patients with lower baseline motility and CoQ10 levels demonstrated a higher probability of responding positively to CoQ10 treatment.

Conclusions:

• Exogenous Coenzyme Q10 administration effectively increases ubiquinone and ubiquinol levels within semen.
• CoQ10 supplementation can be a beneficial therapeutic strategy for improving sperm kinetic features in men with idiopathic asthenozoospermia.
• Further research into CoQ10's role in male reproductive health and infertility is warranted.