PMID- 34858347 OWN - NLM STAT- MEDLINE DCOM- 20220215 LR - 20220215 IS - 1664-2392 (Print) IS - 1664-2392 (Electronic) IS - 1664-2392 (Linking) VI - 12 DP - 2021 TI - Life-Time Environmental Chemical Exposure and Obesity: Review of Epidemiological Studies Using Human Biomonitoring Methods. PG - 778737 LID - 10.3389/fendo.2021.778737 [doi] LID - 778737 AB - The exponential global increase in the incidence of obesity may be partly attributable to environmental chemical (EC) exposure. Humans are constantly exposed to ECs, primarily through environmental components. This review compiled human epidemiological study findings of associations between blood and/or urinary exposure levels of ECs and anthropometric overweight and obesity indices. The findings reveal research gaps that should be addressed. We searched MEDLINE (PubMed) for full text English articles published in 2006-2020 using the keywords "environmental exposure" and "obesity". A total of 821 articles were retrieved; 102 reported relationships between environmental exposure and obesity indices. ECs were the predominantly studied environmental exposure compounds. The ECs were grouped into phenols, phthalates, and persistent organic pollutants (POPs) to evaluate obesogenic roles. In total, 106 articles meeting the inclusion criteria were summarized after an additional search by each group of EC combined with obesity in the PubMed and Scopus databases. Dose-dependent positive associations between bisphenol A (BPA) and various obesity indices were revealed. Both individual and summed di(2-ethylhexyl) phthalate (DEHP) and non-DEHP metabolites showed inconsistent associations with overweight and obesity indices, although mono-butyl phthalate (MBP), mono-ethyl phthalate (MEP), and mono-benzyl phthalate (MBzP) seem to have obesogenic roles in adolescents, adults, and the elderly. Maternal exposure levels of individual POP metabolites or congeners showed inconsistent associations, whereas dichlorodiphenyldichloroethylene (DDE) and perfluorooctanoic acid (PFOA) were positively associated with obesity indices. There was insufficient evidence of associations between early childhood EC exposure and the subsequent development of overweight and obesity in late childhood. Overall, human evidence explicitly reveals the consistent obesogenic roles of BPA, DDE, and PFOA, but inconsistent roles of phthalate metabolites and other POPs. Further prospective studies may yield deeper insights into the overall scenario. CI - Copyright (c) 2021 Mohanto, Ito, Kato and Kamijima. FAU - Mohanto, Nayan Chandra AU - Mohanto NC AD - Department of Occupational and Environmental Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. FAU - Ito, Yuki AU - Ito Y AD - Department of Occupational and Environmental Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. FAU - Kato, Sayaka AU - Kato S AD - Department of Occupational and Environmental Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. FAU - Kamijima, Michihiro AU - Kamijima M AD - Department of Occupational and Environmental Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20211111 PL - Switzerland TA - Front Endocrinol (Lausanne) JT - Frontiers in endocrinology JID - 101555782 RN - 0 (Environmental Pollutants) SB - IM MH - Adolescent MH - Adult MH - Age Factors MH - Aged MH - Aging/drug effects/physiology MH - Child MH - Environmental Exposure/adverse effects/statistics & numerical data MH - Environmental Pollutants/*toxicity MH - Epidemiologic Studies MH - Female MH - Growth and Development/*drug effects MH - Humans MH - Male MH - Obesity/*epidemiology/etiology MH - Pregnancy PMC - PMC8632231 OTO - NOTNLM OT - bisphenols OT - environmental chemicals OT - environmental obesogens OT - human biomonitoring OT - obesity OT - overweight OT - persistent organic pollutants OT - phthalates COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/12/04 06:00 MHDA- 2022/02/16 06:00 PMCR- 2021/01/01 CRDT- 2021/12/03 07:02 PHST- 2021/09/17 00:00 [received] PHST- 2021/10/23 00:00 [accepted] PHST- 2021/12/03 07:02 [entrez] PHST- 2021/12/04 06:00 [pubmed] PHST- 2022/02/16 06:00 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - 10.3389/fendo.2021.778737 [doi] PST - epublish SO - Front Endocrinol (Lausanne). 2021 Nov 11;12:778737. doi: 10.3389/fendo.2021.778737. eCollection 2021.