Yearly Archives: 2012
20 Dec 2012
Background: Coffee contains many compounds, including antioxidants, which could prevent cancerogenesis, and coffee has been related with lower incidence of cancer at several sites. Tea is also rich in antioxidants, mainly polyphenols. To provide a quantitative overall estimate on the relation between coffee and tea consumption and glioma, we combined all published data, using a […]
19 Dec 2012
Rationale: Despite the large number of studies on the behavioural effects of caffeine, an unequivocal conclusion had not been reached. In this review, we seek to disentangle a number of questions. Objective: Whereas there is a general consensus that caffeine can improve performance on simple tasks, it is not clear whether complex tasks are also […]
17 Dec 2012
Background: Coffee is associated with a reduced risk of hepatocellular carcinoma in patients with chronic C hepatitis. This prospective trial was aimed at assessing the mechanisms underlying coffee-related protective effects. Methods: Forty patients with chronic hepatitis C were randomized into two groups: the first consumed 4 cups of coffee/day for 30 days, while the second […]
12 Dec 2012
Epidemiologic studies suggest that coffee intake is associated with reduced risk of oral/pharyngeal cancer. The authors examined associations of caffeinated coffee, decaffeinated coffee, and tea intake with fatal oral/ pharyngeal cancer in the Cancer Prevention Study II, a prospective US cohort study begun in 1982 by the American Cancer Society. Among 968,432 men and women […]
3 Dec 2012
Objective: Observational studies have shown a protective association between coffee consumption and type 2 diabetes mellitus whereas caffeine or caffeinated coffee acutely deteriorates glucose tolerance. We investigated the effects of chronic drinking of instant coffee on glucose and insulin concentrations during a 75 g oral glucose tolerance test. Methods: Overweight men with a mild-to-moderate elevation […]
