國家衛生研究院 NHRI:Item 3990099045/2429

NHRI > National Institute of Environmental Health Sciences > Kuen-Yuh Wu(2001-2008) > Periodical Articles > Item 3990099045/2429

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/2429

Title:	Formation of N-(2-hydroxyethyl)valine in human hemoglobin - effect of lifestyle factors
Authors:	Wu, KY;Chiang, SY;Huang, TH;Tseng, YS;Chen, YL;Kuo, HW;Hsieh, CL
Contributors:	Division of Environmental Health and Occupational Medicine
Abstract:	The formation of N-(2-hydroxyethyl)valine (HEV) in hemoglobin has been considered as a biomarker to assess exogenous and endogenous exposures to ethylene oxide (EO) and/or ethylene (ET). Factors associated with daily exposures to such compounds might significantly affect the formation of HEV Tobacco smoke containing EO elicited a significant increase in the levels of HEV amongst smokers, although other factors related to lifestyles may warrant further studies. The objective of this study was to specifically analyze HEV using a modified Edman degradation technique in order to study the association between lifestyle related factors (smoking, second-hand smoke exposure, tea and alcohol consumption) and HEV formation in vivo. Total of 148 Taiwanese volunteers with no history of occupational exposure to either EO or ET were recruited in this study. The HEV levels for smokers (204 +/- 151 pmol HEV/g globin, n = 70) were greater than those for non-smokers (57 +/- 46 pmol HEV/g globin, n = 78), HEV level increasing with the number of cigarettes smoked by subjects per day with a rate of 8.8 pmol HEV/g globin per cigarettes per day. Further analysis revealed that the rate of HEV formation in our study subjects was significantly associated with the number of daily cigarettes smoked (P < 0.001), but was not associated with tea or alcohol consumption, second-hand smoke exposure, subject age, or subject gender. These results suggest that the significantly higher levels of HEV for smokers than for non-smokers were mainly due to subject exposure to EO contained in cigarette smoke.
Keywords:	Biotechnology & Applied Microbiology;Genetics & Heredity;Toxicology
Date:	2004-04-11
Relation:	Mutation Research-Genetic Toxicology and Environmental Mutagenesis. 2004 Apr;559(1-2):73-82.
Link to:	http://dx.doi.org/10.1016/j.mrgentox.2003.12.011
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1383-5718&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000221014200009
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=1842527077
Appears in Collections:	[Kuen-Yuh Wu(2001-2008)] Periodical Articles

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