How much does obesity affect the male reproductive function?

International Journal of Obesity Supplements
Giuseppe BellastellaObesity Programs of nutrition, Education, Research and Assessment (OPERA) Group

Abstract

Obesity is considered a worldwide epidemic disease. Many pathological conditions have been associated to obesity but the evidence relating to impaired fertility in males with obesity are contrasting. The aim of this review was to evaluate the interplay between obesity and male fertility, analyzing evidence from in vitro and in vivo studies to clinical trials. Obesity seems to be responsible of secondary hypogonadism. Here, we propose a new classification including central, peripheral and testicular factors that may affect the hypothalamic-pituitary-gonadal axis. Moreover, some studies demonstrated a direct action of obesity on sperm count and sperm characteristics, mediated by impaired Sertoli cells function, increased scrotal temperature, oxidative stress and accumulation of toxic substances and liposoluble endocrine disruptors in fat tissue. Recent studies have explored obesity-related epigenetic effects in sperm cells which may cause diseases in offspring. Moreover, not only in females but also males, obesity has been linked to reduced outcomes of in vitro fertilization, with a reduction of pregnancy rate and an increase of pregnancy loss. Finally, we reviewed the effects of weight modifications through diet or bariatric sur...Continue Reading

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Citations

Jun 7, 2020·Journal of Medical Genetics·Maram ArafatRuti Parvari
Nov 16, 2020·Molecular and Cellular Endocrinology·Deborah J Good
Jan 1, 2021·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·Kristian LeisegangRalf Henkel
Mar 8, 2021·Diabetology & Metabolic Syndrome·Junxiao LiangChunbo Yang
Sep 4, 2020·Molecular Aspects of Medicine·M MonroseD H Volle
Mar 31, 2021·Breastfeeding Medicine : the Official Journal of the Academy of Breastfeeding Medicine·Perrine TallaUNKNOWN ALIFERT collaborative group
May 25, 2021·Saudi Journal of Biological Sciences·Sahar M GreishNoha M Abogresha
Jun 3, 2021·International Journal of Molecular Sciences·Agata Wawrzkiewicz-JałowieckaGraça Soveral

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