In the News
September 30, 2003
Non-human Molecule Is Absorbed By Eating Red Meat According To Study By UCSD Researchers
Science Daily - A non-human, cellular molecule is absorbed into human tissues as a result of eating red meat and milk products, according to a study by researchers at the University of California, San Diego (UCSD) School of Medicine, published online the week of September 29, 2003 in Proceedings of the National Academy of Sciences. The researchers also showed that the same foreign molecule generates an immune response that could potentially lead to inflammation in human tissues.
According to the World Health Organization:
Carbohydrates, should provide the bulk of energy requirements - between 55 and 75 percent of daily intake and free sugars should remain beneath 10 percent. Protein should make up a further 10-15 percent of calorie intake and salt should be restricted to less than 5 grams a day. Intake of fruit and vegetables should be plumped up to reach at least 400 grams a day.
'Normal' Blood Pressure May Still Be Too High
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A new study of heart disease patients finds that "normal" blood pressure may not be low enough. By reducing their pressure well below the levels suggested by national guidelines, patients had fewer heart attacks, strokes, cardiac arrests, hospitalizations for chest pain, procedures to open blocked coronary arteries, and deaths.
In addition, lower blood pressure appeared to slow or stop the growth of the fatty deposits called plaque in the coronary arteries, compared with patients taking a placebo, whose plaque growth continued over the two-year study.
The international study, led by Dr. Steven Nissen of the Cleveland Clinic, is being published today in The Journal of the American Medical Association. It found that for every 16 heart disease patients with normal blood pressure given drugs to lower it, 1 adverse event could be prevented.
Although the study was modest in size, with 1,991 patients, all with normal blood pressure, experts said its surprising result reopened this longstanding question: How low should blood pressure go?
The question takes on special urgency because millions of Americans have heart disease severe enough to cause the adverse symptoms.
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