Abstract：
BACKGROUND AND OBJECTIVE:Background exposure to environmental contaminants has recently emerged as a new risk factor for cardiovascular disease in general and to atheroclerosis in particular. This cross-sectional study was performed to evaluate if serum concentrations of the phthalate metabolite monobenzylphthalate (MBzP) are related to atheroclerosis in the carotid arteries. METHODS:In the population-based Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS) study (1003 subjects all aged 70) the prevalence of overt plaques and echogenicity (gray-scale median, GSM) of carotid artery plaques were recorded by ultrasound in both of the carotid arteries. The intima-media thickness (IMT) and echogenicity (IM-GSM) of the intima-media complex were also measured. The phthalate metabolite MBzP was analyzed in serum by a liquid chromatograph/tandem mass spectrometer. RESULTS:The circulating level of the phthalate MBzP was related to intima-media thickness (IMT) when adjusting for gender, blood pressure, body mass index (BMI), waist circumference, HDL- and LDL-cholesterol, serum triglycerides, blood glucose and smoking (p=0.034). High levels of MBzP were also strongly associated with an echogenic IM-GSM and plaque GSM (p=0.0001 for both outcomes after adjustment) but not to plaque prevalence (p=0.42). CONCLUSION:The phthalate metabolite MBzP was strongly related to the echogenicity of intima-media and plaques and also to IMT, independently of traditional CV risk factors. This suggests a role for the phthalate MBzP in the development of atherosclerosis.
journal_name
Environ Resjournal_title
Environmental researchauthors
Wiberg B,Lind PM,Lind Ldoi
10.1016/j.envres.2014.06.009subject
Has Abstractpub_date
2014-08-01 00:00:00pages
348-52eissn
0013-9351issn
1096-0953pii
S0013-9351(14)00205-9journal_volume
133pub_type
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