Environmental and occupational exposures associated with male infertility

Arh Hig Rada Toksikol. 2021 Jun 28;72(3):101-113. doi: 10.2478/aiht-2021-72-3510.

Abstract

The upsurge in male infertility over the last two decades, possibly due to environmental exposure, has raised significant interest, particularly boosted by reports from fertility clinics, which showed that chronic diseases and hereditary or other medical conditions might only partially explain current incidence of male infertility. Both environmental and occupational settings may have a significant role in exposure to complex mixtures of endocrine disruptors (ED), which play a major role in fertility disorders. The aim of this review is to give an insight into the current knowledge on exposure settings which may be associated with male infertility. Our study relied on a systematic search of PubMed, Scopus, and Web of Science for articles published between January 2000 and September 2020. It showed that some well documented factors associated with male infertility include smoking, and physiological disturbances or chronic diseases such as obesity and diabetes, which in turn, may also reflect lifestyle choices and environmental exposures, especially to EDs such as phthalates, bisphenols, pesticides, and flame retardants. However, the number of studies on the aetiology of male infertility is still too low in comparison with the size of affected population. Occupational health follow-ups and medical surveillance do not collect any data on male infertility, even though ED chemicals are part of many technological processes.

Porast slučajeva muške neplodnosti tijekom posljednja dva desetljeća, vjerojatno i zbog izloženosti okolišnim čimbenicima, izazvao je značajan interes. Izvješća klinika za neplodnost pokazala su da kronične bolesti i nasljedni čimbenici ili neke zdravstvene smetnje mogu samo djelomično objasniti trenutačnu incidenciju muške neplodnosti. Životni okoliš i radna okolina mogu imati značajnu ulogu u izlaganju složenim smjesama spojeva s endokrinim djelovanjem (ED), koji su povezani s raznim poremećajima plodnosti. Cilj je ovoga preglednog rada dati uvid u trenutačno znanje o tipovima izloženosti koji mogu biti povezani s muškom neplodnošću. Naše se istraživanje oslanjalo na sustavnu pretragu PubMeda, Scopusa i Web of Sciencea za članke objavljene od siječnja 2000. do rujna 2020. Rezultati su pokazali da je za neke čimbenike dobro dokumentirana povezanost s muškom neplodnošću, što uključuje pušenje, neke fiziološke poremećaje te kronične bolesti poput pretilosti i dijabetesa, koji sami po sebi mogu odražavati životne navike i izloženost okolišu, posebice spojevima s ED-om poput ftalata, bisfenola, pesticida i protupožarnih zaštita. Međutim, broj studija o etiologiji muške neplodnosti još je uvijek premalen u usporedbi s veličinom zahvaćene populacije. Medicina rada tijekom sistematskih pregleda ne prikuplja podatke o muškoj neplodnosti premda su spojevi s ED-om prisutni u mnogim tehnološkim procesima.

Keywords: alcohol; alkohol; bisfenoli; bisphenols; diet; electromagnetic fields; elektromagnetsko zračenje; endocrine disruptors; endokrini poremećaji; ftalati; obesity; parabeni; parabens; pesticides; pesticidi; phthalates; prehrana; pretilost; pušenje; smoking; sperm-; sperma.

Publication types

  • Review

MeSH terms

  • Endocrine Disruptors* / toxicity
  • Environmental Exposure / adverse effects
  • Environmental Pollutants* / toxicity
  • Humans
  • Infertility, Male* / chemically induced
  • Infertility, Male* / epidemiology
  • Male
  • Occupational Exposure* / adverse effects
  • Pesticides* / toxicity

Substances

  • Endocrine Disruptors
  • Environmental Pollutants
  • Pesticides