TY - JOUR
T1 - Urinary concentrations of phthalate metabolites associated with changes in clinical hemostatic and hematologic parameters in pregnant women
AU - Jiang, Minmin
AU - Li, Yuanyuan
AU - Zhang, Bin
AU - Zhou, Aifen
AU - Zhu, Yingshuang
AU - Li, Jiufeng
AU - Zhao, Hongzhi
AU - Chen, Li
AU - Hu, Jie
AU - Wu, Chuansha
AU - Peng, Yang
AU - Liao, Jiaqiang
AU - Xia, Zhiguo
AU - Cai, Zongwei
AU - Chen, Xi
AU - Xu, Bing
AU - Xia, Wei
AU - Xu, Shunqing
N1 - Funding Information:
We thank all the participants in the study and all the staff, students and collaborators of the team. This work was supported by the National Natural Science Foundation of China ( 21437002 , 91643207 , 81372959 , and 81402649 ), and General research fund ( 12304117 ) from Hong Kong Research Grant Council , and the National Key Research and Development Plan of China ( 2016YFC0206203 and 2016YFC0206700 ), and the Fundamental Research Funds for the Central Universities , HUST ( 2016YXZD04 3).
PY - 2018/11
Y1 - 2018/11
N2 - Background: Exposure to phthalates, one kind of widely used plasticizers, has been demonstrated to be associated with some clinical hematological changes in circulatory system from animal studies and in vitro experiments, but their relations to hemostatic and hematologic changes in human are unknown. Objectives: We explored the relationships of urinary phthalate metabolites with clinical hemostatic and hematologic parameter changes in pregnant women. Methods: The present study population included 1482 pregnant women drawn from an ongoing prospective birth cohort study in Wuhan, China. Eight urinary phthalate metabolites and eight blood clinical parameters, including activated partial thromboplastin time (APTT), prothrombin time (PT), thrombin time (TT), fibrinogen (Fg), total white blood cell counts (WBC), red blood cell counts (RBC), hemoglobin (Hb), and platelet counts (PLT) were measured in the late third trimester. The associations between phthalate metabolites and blood parameters were analyzed using general linear model. The odds ratios (ORs) for anemia during pregnancy associated with phthalates were also explored by using logistic regression models. Results: After adjustment for false discovery rate, a significantly negative association between ln-transformed urinary mono-ethyl phthalate (MEP) concentration and blood Fg, and a positive association between urinary mono-butyl phthalate (MBP) and APTT were found in this study. Higher concentrations of mono-(2-ethylhexyl) phthalate (MEHP), mono-(2-ethyl-5-oxohexyl) phthalate (MEOHP) and mono-(2-ethyl-5-carboxypentyl) phthalate (MECPP) were associated with lower Hb concentrations. In addition, higher levels of MEHP, MEOHP and MECPP were also associated with increased likelihood of anemia. No significant associations were found between phthalates and other hematologic parameters. Conclusions: Higher urinary phthalate metabolites in late third trimester were associated with prolonged blood clotting time, decreased Hb concentrations, and increased likelihood of anemia in pregnant women. Further research is needed to replicate the observed findings and clarify the potential biological mechanism.
AB - Background: Exposure to phthalates, one kind of widely used plasticizers, has been demonstrated to be associated with some clinical hematological changes in circulatory system from animal studies and in vitro experiments, but their relations to hemostatic and hematologic changes in human are unknown. Objectives: We explored the relationships of urinary phthalate metabolites with clinical hemostatic and hematologic parameter changes in pregnant women. Methods: The present study population included 1482 pregnant women drawn from an ongoing prospective birth cohort study in Wuhan, China. Eight urinary phthalate metabolites and eight blood clinical parameters, including activated partial thromboplastin time (APTT), prothrombin time (PT), thrombin time (TT), fibrinogen (Fg), total white blood cell counts (WBC), red blood cell counts (RBC), hemoglobin (Hb), and platelet counts (PLT) were measured in the late third trimester. The associations between phthalate metabolites and blood parameters were analyzed using general linear model. The odds ratios (ORs) for anemia during pregnancy associated with phthalates were also explored by using logistic regression models. Results: After adjustment for false discovery rate, a significantly negative association between ln-transformed urinary mono-ethyl phthalate (MEP) concentration and blood Fg, and a positive association between urinary mono-butyl phthalate (MBP) and APTT were found in this study. Higher concentrations of mono-(2-ethylhexyl) phthalate (MEHP), mono-(2-ethyl-5-oxohexyl) phthalate (MEOHP) and mono-(2-ethyl-5-carboxypentyl) phthalate (MECPP) were associated with lower Hb concentrations. In addition, higher levels of MEHP, MEOHP and MECPP were also associated with increased likelihood of anemia. No significant associations were found between phthalates and other hematologic parameters. Conclusions: Higher urinary phthalate metabolites in late third trimester were associated with prolonged blood clotting time, decreased Hb concentrations, and increased likelihood of anemia in pregnant women. Further research is needed to replicate the observed findings and clarify the potential biological mechanism.
KW - Anemia
KW - Coagulation function
KW - Hematologic parameters
KW - Phthalate
KW - Pregnancy
UR - http://www.scopus.com/inward/record.url?scp=85050471960&partnerID=8YFLogxK
U2 - 10.1016/j.envint.2018.07.021
DO - 10.1016/j.envint.2018.07.021
M3 - Journal article
C2 - 30059848
AN - SCOPUS:85050471960
SN - 0160-4120
VL - 120
SP - 34
EP - 42
JO - Environment International
JF - Environment International
ER -