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Does an increase in adipose tissue 'weight' affect male fertility? A systematic review and meta‐analysis based on semen analysis performed using the WHO 2010 criteria.

Authors :
Santi, Daniele
Lotti, Francesco
Sparano, Clotilde
Rastrelli, Giulia
Isidori, Andrea M.
Pivonello, Rosario
Barbonetti, Arcangelo
Salonia, Andrea
Minhas, Suks
Krausz, Csilla
Vignozzi, Linda
Maggi, Mario
Corona, Giovanni
Source :
Andrology; Jan2024, Vol. 12 Issue 1, p123-136, 14p
Publication Year :
2024

Abstract

Introduction: Obesity negatively impact on the metabolism of sex hormones, leading to reduced testosterone serum levels. However, how the obesity could negatively impact on the overall gonadal function, particularly on male fertility, remained unclear so far. Objective: To systematically review evidences regarding the influence of body weight excess on the sperm production. Methods: A meta‐analysis was conducted, searching all prospective and retrospective observational studies reporting male subjects older than 18 years old, with body weight excess from overweight to severe obesity were considered. Only studies using the V edition of the World Health Organization (WHO) manual for semen analysis interpretation were considered. No specific interventions were considered. Search was focused on studies comparing overweight/obese to normal weight subjects. Results: Twenty‐eight studies were considered. Total sperm count and sperm progressive motility were significantly lower in overweight compared to normal weight subjects. Meta‐regression analyses demonstrated that patients' age impacted on sperm parameters. Similarly, obese men showed lower sperm concentration, total sperm number, progressive and total motilities, and normal morphology lower than normal weight subjects. Reduced sperm concentration in obese men was influenced by age, smoking habit, varicocele, and total testosterone serum levels at meta‐regression analyses. Conclusions: The male potential fertility is reduced in subjects with increased body weight, compared to normal weight men. The higher was the increased body weight, the worst was the sperm quantity/quality. This result comprehensively included obesity among non‐communicable risk factor for male infertility, shedding new lights on the negative impact of increased body weight on overall gonadal function. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
20472919
Volume :
12
Issue :
1
Database :
Complementary Index
Journal :
Andrology
Publication Type :
Academic Journal
Accession number :
174345699
Full Text :
https://doi.org/10.1111/andr.13460