國家衛生研究院 NHRI:Item 3990099045/2521

NHRI > National Institute of Environmental Health Sciences > Ying-Chin Ko(2003-2009) > Periodical Articles > Item 3990099045/2521

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/2521

Title:	Ingredients contribute to variation in production of reactive oxygen species by areca quid
Authors:	Chen, PH;Tsai, CC;Lin, YC;Ko, YC;Yang, YH;Shieh, TY;Ho, PS;Li, CM;Ko, AMS;Chen, CH
Contributors:	Division of Environmental Health and Occupational Medicine
Abstract:	Areca quid (AQ) chewing has been implicated an independent risk factor for the development of oral cancer. Taiwanese areca quid (AQ) refers to a combination of areca nut (AN), lime, and inflorescence of Piper betle Linn. (IPB) or Piper betle leaf (PBL). Studies of AQ in other countries reported that AN extract combined with lime generates reactive oxygen species (ROS), such as hydroxyl radical (HO.), known to be a contributing factor in oral mucosa damage. To determine whether HO. is formed in the oral cavity during AQ chewing, the formation of metatyrosine (m-Tyr) and ortho-tyrosine (o-Tyr) from L-phenylalanine (Phe) was confirmed. It was demonstrated that combined aqueous extracts of AN, lime, metal ions (such as Cu2+ and Fe2+), and IPB or PBL produced HO.. Thus, the yield of HO. significantly increases when higher amounts of IPB or lime are added and also when Cu2+ and Fe2+ are increased. Further, the omission of any one of these ingredients significantly reduces the formation of HO.. Our results found that chewing AQ with IPB generated significantly higher HO. than chewing AQ with PBL, and may result in greater oxidative damage to the surrounding oral mucosa.
Keywords:	Environmental Sciences;Public, Environmental & Occupational Health;Toxicology
Date:	2006-06-01
Relation:	Journal of Toxicology and Environmental Health Part A: Current Issues. 2006 Jun;69(11):1055-1069.
Link to:	http://dx.doi.org/10.1080/15287390500360224
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1528-7394&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000237805500003
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33745714764
Appears in Collections:	[Ying-Chin Ko(2003-2009)] Periodical Articles

Files in This Item:

File	Description	Size	Format
000237805500003.pdf		192Kb	Adobe PDF	5179	View/Open

Loading...