Do Exercise and Magnesium Sulfate Improve Infertility Caused by Lithium Carbonate in Male Rats?

Area of Science:

• Reproductive Toxicology
• Endocrinology
• Exercise Physiology

Background:

• Lithium (Li) is a common treatment for bipolar disorder but can cause reproductive toxicity.
• Male fertility may be negatively impacted by lithium exposure.
• Magnesium sulfate (MgSo4) and moderate-intensity training (MIT) have shown potential benefits for male sperm quality.

Purpose of the Study:

• To investigate the protective effects of magnesium sulfate (MgSo4) and moderate-intensity training (MIT) against lithium-induced male infertility.
• To evaluate the impact of these interventions on sperm parameters and reproductive hormones.

Main Methods:

• Seventy-two male rats were divided into 12 groups, receiving varying doses of lithium, MgSo4, and MIT over 42 days.
• Sperm count, concentration, and motility were analyzed.
• Serum levels of testosterone, luteinizing hormone (LH), and follicle-stimulating hormone (FSH) were quantified.

Main Results:

• Lithium (40 mg/kg) significantly decreased sperm progressive motility and quantity while increasing immotile sperm.
• MgSo4 and MIT, both alone and in combination, significantly improved sperm parameters.
• Lithium reduced serum testosterone and LH levels, but co-administration with MgSo4 and MIT did not fully restore testosterone levels.

Conclusions:

• Lithium may impair reproductive functions by affecting the antioxidant system.
• MgSo4 and MIT can mitigate the adverse effects of lithium on the male reproductive system.
• Combined MgSo4 and MIT show potential for improving reproductive health in the context of lithium treatment.