BACKGROUND Inadequate housing, low family income, household smoking, personal smoking status, and poor schooling are some of the conditions that have been significantly associated with the prevalence and incidence of chronic bronchitis. The aim of the current study was to determine the prevalence of chronic bronchitis (CB) and associated risk factors among First Nations people. METHODS An int...

In the article “Oral Health of StoneMineWorkers of Jodhpur City, Rajasthan, India” recently published in SH@W, the authors conclude that the oral health of stonemine workers is in a poor state [1]. This conclusion ismisleading, because it tends to suggest that stonemining as anoccupationpresents hazardswhich lead topoororal health. This has not been established anywhere in the article. First, t...

Asthma is a chronic life-threatening disease of worldwide importance. Although allergic asthma and related atopic conditions correlate strongly with immune sensitization to house dust mites, it is unclear why antigens from mites provoke such powerful allergic immune responses. We have characterized the protease activity of Der p I, the group I protease allergen of the house dust mite Dermatopha...

background: passive or environmental smoking is one of the important health problems, to which many adults and children are exposed in involuntary status. methods: in this hospital based case-control study, household exposure to tobacco smoke as an estimate of passive smokers was conducted in hamadan, western iran. the purpose was to find the relationship between environmental smoking and incid...

Increased cost of tobacco cultivation is a major concern for its sustainable production in Iran. Therefore, the development of tobacco mechanized cultivation is a necessity. Given this, the driving and inhibiting factors of the development of mechanized tobacco cultivation were investigated by the Delphi technique in three rounds in Guilan Province, Iran. Nineteen experts from the Jahad Agricul...

The potential of tobacco waste as a viable source of medicinally important flavonoids like rutin has been investigated. Three flavonoids, apigenin, quercetin and rutin, have been isolated from waste tobacco leaves, and their identities have been confirmed by UV-visible, 1H-NMR and 13C-NMR spectroscopy. By using analytical HPLC, the amount of rutin present in the tobacco leaves, before and after...