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Article Publish Status: FREE
Abstract Title:

Comparison of Bladder Carcinogens in the Urine of E-cigarette Users Versus Non E-cigarette Using Controls.

Abstract Source:

Sci Rep. 2018 Jan 11 ;8(1):507. Epub 2018 Jan 11. PMID: 29323232

Abstract Author(s):

Thomas W Fuller, Abhinav P Acharya, Thiagarajan Meyyappan, Michelle Yu, Godugu Bhaskar, Steven R Little, Tatum V Tarin

Article Affiliation:

Thomas W Fuller

Abstract:

Electronic cigarette (EC) use is gaining popularity as a substitute for conventional smoking due to the perception and evidence it represents a safer alternative. In contrast to the common perception amongst users that ECs represent no risk initial studies have revealed a complex composition of e-cigarette liquids. Conventional cigarette smoking is a known risk factor for developing bladder cancer and prior reports raise concern some of those causative compounds may exist in EC liquids or vapor. Urine samples were collected from 13 e-cigarette using subjects and 10 non e-cigarette using controls. Five known bladder carcinogens that are either present in conventional cigarettes, products of combustion, or solvents believed to be used in some e-cigarette formulations were quantified by liquid chromatography - mass spectrometry (LC-MS). Analysis of e-cigarette user urine revealed the presence of two carcinogenic compounds, o-toluidine and 2-naphthylamine, at a mean 2.3 and 1.3 fold higher concentration (p-value of 0.0013 and 0.014 respectively). Many of these subjects (9/13) were long term nonsmokers (>12 months). Further study is needed to clarify the safety profile of e-cigarettes and their contribution to the development of bladder cancer given the greater concentration of carcinogenic aromatic amines in the urine of e-cigarette users.

Study Type : Human Study
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Additional Keywords : Risk Factors : CK(3057) : AC(392)

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