PMID- 34948498 OWN - NLM STAT- MEDLINE DCOM- 20211231 LR - 20220531 IS - 1660-4601 (Electronic) IS - 1661-7827 (Print) IS - 1660-4601 (Linking) VI - 18 IP - 24 DP - 2021 Dec 7 TI - Direct and Indirect Effects of Indoor Particulate Matter on Blood Indicators Related to Anemia. LID - 10.3390/ijerph182412890 [doi] LID - 12890 AB - Exposure to indoor particulate matter (PM) is a potential risk factor that increases systemic inflammation and affects erythropoiesis. This study investigated the association between exposure to indoor PM and blood indicators related to anemia (BIRA) in housewives. Indoor PM and blood folate status are important factors in the risk of anemia. This was a housewife cohort study; we recruited 284 housewives in Seoul and Ulsan, Republic of Korea. Indoor exposure to PM2.5 and PM10 was measured by gravimetric analysis and sensors. We investigated the BIRA, such as hemoglobin (Hb), hematocrit, mean corpuscular volume (MCV), mean corpuscular Hb (MCH), and mean corpuscular Hb concentration (MCHC). Statistical analysis was performed by multiple linear regression model and mediation analysis. The association between BIRA and PM was assessed by multiple linear regression models fitted by mediation analyses. The increase in the level of indoor PM2.5 was associated with a decrease in MCV (Beta coefficient (B): -0.069, Standard error (SE): 0.022) and MCH (B: -0.019, SE: 0.009) in gravimetric measurements. The increase in the level of indoor PM2.5 was associated with a decrease in Hb (B: -0.024, SE: 0.011), hematocrit (B: -0.059, SE: 0.033), and MCV (B: -0.081, SE: 0.037) and MCH (B: -0.037, SE: 0.012) in sensor measurements (PM2.5-Lag10). Further, we identified a serum folate-mediated PM effect. The indoor PM exposure was significantly associated with decreased Hb, MCV, and MCH in housewives. Taken together, our data show that exposure to indoor PM is a risk factor for anemia in housewives. Blood folate concentration can be a mediating factor in the effect of indoor PM on BIRA. Therefore, folate intake should be recommended to prevent anemia in housewives. Moreover, indoor PM exposure should be managed. FAU - Kwag, Youngrin AU - Kwag Y AUID- ORCID: 0000-0002-3231-2493 AD - Department of Environmental Medicine, School of Medicine, Ewha Womans University, Seoul KS013, Korea. AD - Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul KS013, Korea. FAU - Ye, Shinhee AU - Ye S AD - Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency, Incheon KS006, Korea. FAU - Oh, Jongmin AU - Oh J AUID- ORCID: 0000-0002-2980-6943 AD - Department of Environmental Medicine, School of Medicine, Ewha Womans University, Seoul KS013, Korea. FAU - Lee, Dong-Wook AU - Lee DW AUID- ORCID: 0000-0002-4023-3269 AD - Department of Preventive Medicine, College of Medicine, Seoul National University, Seoul KS013, Korea. FAU - Yang, Wonho AU - Yang W AUID- ORCID: 0000-0003-2776-5989 AD - Department of Occupational Health, Daegu Catholic University, Gyeongsan-si KS002, Korea. FAU - Kim, Yangho AU - Kim Y AUID- ORCID: 0000-0002-6462-0829 AD - Department of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan KS016, Korea. FAU - Ha, Eunhee AU - Ha E AD - Department of Environmental Medicine, School of Medicine, Ewha Womans University, Seoul KS013, Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20211207 PL - Switzerland TA - Int J Environ Res Public Health JT - International journal of environmental research and public health JID - 101238455 RN - 0 (Air Pollutants) RN - 0 (Particulate Matter) SB - IM MH - *Air Pollutants/analysis/toxicity MH - *Air Pollution, Indoor/analysis/statistics & numerical data MH - *Anemia/chemically induced/epidemiology MH - Cohort Studies MH - Erythrocyte Indices MH - Hematocrit MH - Humans MH - Particulate Matter/analysis/toxicity PMC - PMC8701383 OTO - NOTNLM OT - Hb OT - MCH OT - MCHC OT - MCV OT - folate OT - housewives OT - indoor particulate matter COIS- The authors declare no conflict of interest. EDAT- 2021/12/25 06:00 MHDA- 2022/01/01 06:00 PMCR- 2021/12/07 CRDT- 2021/12/24 01:18 PHST- 2021/11/23 00:00 [received] PHST- 2021/11/30 00:00 [revised] PHST- 2021/11/30 00:00 [accepted] PHST- 2021/12/24 01:18 [entrez] PHST- 2021/12/25 06:00 [pubmed] PHST- 2022/01/01 06:00 [medline] PHST- 2021/12/07 00:00 [pmc-release] AID - ijerph182412890 [pii] AID - ijerph-18-12890 [pii] AID - 10.3390/ijerph182412890 [doi] PST - epublish SO - Int J Environ Res Public Health. 2021 Dec 7;18(24):12890. doi: 10.3390/ijerph182412890.