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 surgery on obesity-related reproductive dysfunction. In this regard, several studies have demonstrated that weight loss has been associated with a restoration of gonadal hormones levels.

How much does obesity affect the male reproductive function? / Bellastella, Giuseppe; Menafra, Davide; Puliani, Giulia; Colao, Annamaria; Savastano, Silvia. - In: INTERNATIONAL JOURNAL OF OBESITY SUPPLEMENTS. - ISSN 2046-2166. - 9:1(2019), pp. 50-64. [10.1038/s41367-019-0008-2]

How much does obesity affect the male reproductive function?

Puliani, Giulia
Writing – Original Draft Preparation
;
2019

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 surgery on obesity-related reproductive dysfunction. In this regard, several studies have demonstrated that weight loss has been associated with a restoration of gonadal hormones levels.
2019
obesity; male hypogonadism; fertility
01 Pubblicazione su rivista::01a Articolo in rivista
How much does obesity affect the male reproductive function? / Bellastella, Giuseppe; Menafra, Davide; Puliani, Giulia; Colao, Annamaria; Savastano, Silvia. - In: INTERNATIONAL JOURNAL OF OBESITY SUPPLEMENTS. - ISSN 2046-2166. - 9:1(2019), pp. 50-64. [10.1038/s41367-019-0008-2]
File allegati a questo prodotto
File Dimensione Formato  
Bellastella_Obesity-affect-male_2019.pdf

solo gestori archivio

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 908.25 kB
Formato Adobe PDF
908.25 kB Adobe PDF   Contatta l'autore

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1362187
Citazioni
  • ???jsp.display-item.citation.pmc??? 8
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact