Obesity, energy balance and spermatogenesis

Area of Science:

• Reproductive Endocrinology
• Metabolic Syndrome
• Male Infertility

Background:

• Obesity is a global pandemic affecting all age groups, leading to silent comorbidities like infertility.
• Male infertility is increasingly linked to obesity-induced energy dysfunction, impacting sperm quality and hormonal balance.
• Conflicting data exist on obesity's effects on male fertility and potential epigenetic inheritance of obesity traits.

Purpose of the Study:

• To discuss how energy balance influences hormonal signaling and sperm quality in overweight and obese men.
• To explore molecular mechanisms underlying obesity-related male reproductive dysfunction.
• To examine the impact of weight loss interventions, including bariatric surgery, on male fertility and potential trait inheritance.

Main Methods:

• Review of current literature on obesity, male reproductive health, and epigenetic inheritance.
• Analysis of hormonal signaling pathways affected by energy imbalance.
• Discussion of molecular mechanisms linking obesity to sperm dysfunction.

Main Results:

• Obesity disrupts hormonal signaling and impairs sperm quality through various molecular pathways.
• Paternal obesity may contribute to the epigenetic inheritance of obesity-related traits in offspring.
• Massive weight loss, particularly through bariatric surgery, shows potential to reverse detrimental effects of obesity on male reproductive health.

Conclusions:

• Energy imbalance in obesity significantly affects male reproductive potential.
• Understanding molecular mechanisms is crucial for addressing obesity-related male infertility.
• Weight loss interventions offer a promising strategy for improving fertility outcomes in obese men and their descendants.