Background Lung cancer is the most common cause of cancer death in men and women in
the United States. Cigarette smoking is the main risk factor. Former smokers are at a …

Cancer chemoprevention refers to the use of pharmacological agents to inhibit, delay or
reverse the multi-step process of carcinogenesis. The last two decades in particular have …

Encouraged by the potential health benefits of higher dietary intake of substances with
beneficial properties, the use of supplements containing these compounds has increased …

Purpose B vitamins and methionine have been postulated to have potential effects on
carcinogenesis; however, findings from previous epidemiologic studies on B vitamins …

The history of lung cancer epidemiology parallels the history of modern chronic disease
epidemiology. In the nineteenth century, an excess of lung cancer was observed among …

This meta-analysis aimed to investigate the effects of beta-carotene supplements alone on
cancer prevention as reported by randomized controlled trials (RCTs). We searched …

It is generally accepted that selenium (Se) plays an important role in maintaining equilibrium
of a healthy organism. It also participates in processes related to carcinogenesis such as …

Background: Epidemiologic studies have shown increased risks of lung cancer among
adults with low blood levels of selenium, although evidence is inconsistent. In the United …

Lung cancer is the most common cancer-related death worldwide. Natural compounds have
shown high biological and pharmaceutical relevance as anticancer agents. Retinoids are …

Lung cancer is responsible for over one million deaths worldwide each year. Smoking
cessation for lung cancer prevention remains key, but it is increasingly acknowledged that …