Brand variation in oxidant production in mainstream cigarette smoke: Carbonyls and free radicals
نویسندگان
چکیده
منابع مشابه
Investigation of Free Radicals in Cigarette Mainstream Smoke
Electron Paramagnetic Resonance spectroscopy (EPR) coupled with spin trapping methodology has been used to study the formation of free radicals in mainstream cigarette smoke. Kentucky reference cigarettes (2R4F) were smoked using a 20-port smok ing machine (Borgwaldt-kc) under ISO smoking conditions. Free radicals in both particulate phase and gas phase smoke were analysed. Short-lived Cand O-...
متن کاملA protocol for detecting and scavenging gas-phase free radicals in mainstream cigarette smoke.
Cigarette smoking is associated with human cancers. It has been reported that most of the lung cancer deaths are caused by cigarette smoking (5,6,7,12). Although tobacco tars and related products in the particle phase of cigarette smoke are major causes of carcinogenic and mutagenic related diseases, cigarette smoke contains significant amounts of free radicals that are also considered as an i...
متن کاملElectron-spin resonance study of mainstream and sidestream cigarette smoke: nature of the free radicals in gas-phase smoke and in cigarette tar.
Radicals in the gas phase of both mainstream and sidestream cigarette smoke have been studied using electron-spin resonance ESR spin-trapping techniques with alpha-phenyl-N-tert-butyl nitrone (PBN) as the spin trap. The principal radicals we trap appear to be alkoxyl radicals. Mainstream and sidestream gas-phase smoke each have about the same concentration of radicals, about 1 X 10(16) radicals...
متن کاملCigarette smoke radicals and the role of free radicals in chemical carcinogenicity.
This article consists of two parts: a brief overview of the ways in which free radicals can be involved in chemical carcinogenesis, and a review of cigarette smoke chemistry. Carcinogenesis is generally agreed to involve at least three stages: initiation, promotion, and progression. It is suggested that radicals sometimes are involved in the initiation step, either in the oxidative activation o...
متن کاملMicrobiological components in mainstream and sidestream cigarette smoke
BACKGROUND Research has shown that tobacco smoke contains substances of microbiological origin such as ergosterol (a fungal membrane lipid) and lipopolysaccharide (LPS) (in the outer membrane of Gram-negative bacteria). The aim of the present study was to compare the amounts of ergosterol and LPS in the tobacco and mainstream (MS) and sidestream (SS) smoke of some popular US cigarettes. METHO...
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ژورنال
عنوان ژورنال: Food and Chemical Toxicology
سال: 2017
ISSN: 0278-6915
DOI: 10.1016/j.fct.2017.05.035