PMID- 35324741 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220421 IS - 2305-6304 (Electronic) IS - 2305-6304 (Linking) VI - 10 IP - 3 DP - 2022 Mar 1 TI - Exposure to Metal Mixtures in Association with Cardiovascular Risk Factors and Outcomes: A Scoping Review. LID - 10.3390/toxics10030116 [doi] LID - 116 AB - Since the National Institute of Environmental Health Sciences (NIEHS) declared conducting combined exposure research as a priority area, literature on chemical mixtures has grown dramatically. However, a systematic evaluation of the current literature investigating the impacts of metal mixtures on cardiovascular disease (CVD) risk factors and outcomes has thus far not been performed. This scoping review aims to summarize published epidemiology literature on the cardiotoxicity of exposure to multiple metals. We performed systematic searches of MEDLINE (PubMed), Scopus, and Web of Science to identify peer-reviewed studies employing statistical mixture analysis methods to evaluate the impact of metal mixtures on CVD risk factors and outcomes among nonoccupationally exposed populations. The search was limited to papers published on or after 1998, when the first dedicated funding for mixtures research was granted by NIEHS, through 1 October 2021. Twenty-nine original research studies were identified for review. A notable increase in relevant mixtures publications was observed starting in 2019. The majority of eligible studies were conducted in the United States (n = 10) and China (n = 9). Sample sizes ranged from 127 to 10,818. Many of the included studies were cross-sectional in design. Four primary focus areas included: (i) blood pressure and/or diagnosis of hypertension (n = 15), (ii) risk of preeclampsia (n = 3), (iii) dyslipidemia and/or serum lipid markers (n = 5), and (iv) CVD outcomes, including stroke incidence or coronary heart disease (n = 8). The most frequently investigated metals included cadmium, lead, arsenic, and cobalt, which were typically measured in blood (n = 15). The most commonly utilized multipollutant analysis approaches were Bayesian kernel machine regression (BKMR), weighted quantile sum regression (WQSR), and principal component analysis (PCA). To our knowledge, this is the first scoping review to assess exposure to metal mixtures in relation to CVD risk factors and outcomes. Recommendations for future studies evaluating the associations of exposure to metal mixtures with risk of CVDs and related risk factors include extending environmental mixtures epidemiologic studies to populations with wider metals exposure ranges, including other CVD risk factors or outcomes outside hypertension or dyslipidemia, using repeated measurement of metals to detect windows of susceptibility, and further examining the impacts of potential effect modifiers and confounding factors, such as fish and seafood intake. FAU - Yim, Gyeyoon AU - Yim G AD - Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH 03756, USA. FAU - Wang, Yuting AU - Wang Y AD - Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH 03756, USA. FAU - Howe, Caitlin G AU - Howe CG AUID- ORCID: 0000-0002-4935-9298 AD - Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH 03756, USA. FAU - Romano, Megan E AU - Romano ME AUID- ORCID: 0000-0003-4932-2492 AD - Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH 03756, USA. LA - eng GR - R00 ES030400/ES/NIEHS NIH HHS/United States GR - P20 GM104416/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Review DEP - 20220301 PL - Switzerland TA - Toxics JT - Toxics JID - 101639637 PMC - PMC8955637 OTO - NOTNLM OT - blood pressure OT - cardiovascular diseases OT - dyslipidemia OT - hypertension OT - metal mixtures OT - preeclampsia COIS- The authors declare no conflict of interest. EDAT- 2022/03/25 06:00 MHDA- 2022/03/25 06:01 PMCR- 2022/03/01 CRDT- 2022/03/24 17:24 PHST- 2022/01/17 00:00 [received] PHST- 2022/02/24 00:00 [revised] PHST- 2022/02/26 00:00 [accepted] PHST- 2022/03/24 17:24 [entrez] PHST- 2022/03/25 06:00 [pubmed] PHST- 2022/03/25 06:01 [medline] PHST- 2022/03/01 00:00 [pmc-release] AID - toxics10030116 [pii] AID - toxics-10-00116 [pii] AID - 10.3390/toxics10030116 [doi] PST - epublish SO - Toxics. 2022 Mar 1;10(3):116. doi: 10.3390/toxics10030116.