Two major metabolites of the tobacco-specific lung carcinogen 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) were previously shown to be highly persistent in human urine after cessation of cigarette smoking. We hypothesized that NNK or its metabolite, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), was sequestered in the lung. In this study, we further evaluated this hypothesis by q...

BACKGROUND In South and Southeast Asian countries, tobacco is consumed in diverse forms, and smoking among women is very low. We aimed to provide national estimates of prevalence and social determinants of smoking and smokeless tobacco use among men and women separately. METHODS Data from Demographic and Health Surveys completed in nine countries (India, Pakistan, Nepal, Bangladesh, Maldives,...

background: india has a high burden of tobacco usage and its related morbidity and mortality. almost 30% of the indian population above 15 years of age use some form of tobacco. men usually use smoked tobacco, while women are more likely to use smokeless (chewed) tobacco. tobacco usage has been identified as a risk factor for non-communicable diseases (ncds) among slum dwellers in urban cities....

The use of smokeless tobacco as a substitute for cigarettes raises many scientific and ethical issues, as the fictitious discussion below reveals.

snus (nass) is a form of snuff used in a similar manner to american dipping tobacco, but it does not typically result in a need for spitting. possible hazards associated with this material include malignant and premalignant lesions in the oral cavity and gastrointestinal tract. the use of smokeless tobacco has increased in the middle east in recent decades, particularly among teenagers and youn...

Major strides towards national tobacco control have been made since Nigeria became signatory to the WHO Framework Convention on Tobacco Control (FCTC) in June 2004. The Nigerian senate passed a bill on March 15, 2011 which is expected to be signed into law shortly, to regulate and control production, manufacture, sale, advertising, promotion and sponsorship of tobacco or tobacco products. This ...

OBJECTIVE To examine the role of expectancies in adolescent smokeless tobacco (ST) use. METHODS Self-report measures of students' ST expectancies, cigarette and ST use, and peer and family tobacco use were collected from a sample of 978 rural high school students. RESULTS Student expectancy beliefs significantly predicted ST use and intention to try ST in the next year. Student expectancies...

Objectives This is a protocol for Cochrane Review (intervention). The objectives are as follows: To assess the effects of behavioural and pharmacological interventions smokeless tobacco use cessation.

Cigarette smoking is an important and well-established cause of pancreatic cancer. In contrast, little is known about the effects of smoking cigars, pipes, and use of smokeless tobacco on pancreatic cancer risk. The objective of the present study was to examine the association between noncigarette tobacco use (i.e., cigars, pipes, smokeless tobacco) and pancreatic cancer risk among nonsmokers o...

Past studies which examined correlates of smokeless tobacco or cigarette use have investigated use of one tobacco product regardless of use of the other product. Thus, the etiology of exclusive use of the two tobacco products is not clear. The present study investigated the relationship of problem-prone-related variables to exclusive versus overlapping use of smokeless tobacco and cigarettes. T...