Increased Urinary Hydrogen Peroxide Levels Caused by Coffee Drinking.

Increased urinary hydrogen peroxide levels caused by coffee drinking.

Experiments with volunteers in Singapore have demonstrated that coffee drinking increases urinary hydrogen peroxide levels (Long, Halliwell, Free Rad. Res., 32, 463-467 (2000)). We re-examined the effect of coffee drinking of healthy Japanese subjects on urinary hydrogen peroxide levels. A cup of brewed or canned coffee commercially available in Japan generated 120-420 micro mol hydrogen peroxi...

Asthma caused by peracetic acid-hydrogen peroxide mixture.

Thorough preventive measures against potential patient infections caused by endoscopic material has become a priority in hospitals and has pushed hospital care personnel to use increasingly more powerful disinfectant products with much longer contact periods, which has been responsible for a deterioration in their health. Among chemical disinfectants, formaldehyde and glutaraldehyde were the mo...

Alterations in urinary VMA levels following cigarette smoking, coffee drinking and alcohol consumption.

In eighteen normal healthy volunteers, the effect of cigarette smoking, coffee drinking and alcohol consumption on adrenomedullary sympathetic function was assessed in terms of urinary VMA levels. Following the indulgence in all these social habits, urinary VMA levels are significantly increased. The maximum and minimum increase in VMA levels were recorded following coffee drinking and alcohol ...

Studies of paroxysmal nocturnal hemoglobinuria erythrocytes: increased lysis and lipid peroxide formation by hydrogen peroxide.

When paroxysmal nocturnal hemoglobinuria (PNH) erythrocytes were exposed to H(2)O(2) they lysed excessively and formed greater than normal quantities of lipid peroxides when compared to red cells of normal subjects and patients with most types of hematologic disease. It was also shown that lytic sensitivity to acidified serum was related to the enhanced lytic sensitivity to H(2)O(2). If the lip...

Reversible inactivation by hydrogen peroxide