Ohio State researchers report that alpha-tocotrienol, a form of vitamin E, clears oxidized glutathione that would otherwise kill neurons, and that oral supplementation helped prevent strokes and stroke-induced injury in rodents by raising MRP1 expression.
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Stroke
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Nutrition
Attention: Vitamin D may help prevent heart disease, stroke
Men who took in 600 IU or more of vitamin D a day were 28 percent less likely to have heart disease or stroke than those getting 100 IU or less, Qi Sun of Harvard and colleagues report. Women showed a 16 percent reduction that researchers said was not statistically significant.
Nutrition
You can lower cholesterol, but can't cut cardiovascular risk
A trial halted 18 months early found that adding niacin to statins in 3,412 high-risk patients raised HDL and lowered LDL but did not cut heart attacks, strokes or hospitalizations for acute coronary problems or revascularization.
Heart & Blood
Eating lean fish linked to lower risk of stroke
Among 34,670 Swedish women followed 10.4 years, those eating more than three servings of fish a week had 16 percent fewer strokes than those eating less than one. Only lean fish carried the link, at 33 percent lower risk. The study is observational and shows no cause.
Vitamins
Vitamin C, Omega 3 fatty acids cut death risk from cardiovascular disease
Following 58,730 Japanese adults for 16.5 years, researchers found women with the highest vitamin C intake were 30% less likely to die of stroke and 37% less likely to die of coronary heart disease. The association was not significant in men, and vitamins A and E showed none.
Minerals
Potassium, magnesium reduces stroke risk in hypertensive women
Among 34,670 Swedish women followed 10.4 years, those with hypertension who ate the most potassium had 36 percent fewer strokes overall, and the most magnesium 37 percent fewer cerebral infarctions. Hypertensive women eating the most calcium were twice as likely to suffer intracerebral hemorrhage.
Heart & Blood
Sex, coffee, cola all can boost stroke risk
Dutch researchers questioned 250 people who had suffered an aneurysmal brain hemorrhage and identified eight triggers, led by coffee drinking and physical exercise, that briefly raise blood pressure. The study looked for triggers rather than causes, and its authors note its limits.
Food
Drinking coffee may cut stroke risk in women?
Among 34,670 Swedish women followed 10.4 years, drinking more than one cup of coffee a day tracked with 22 to 25 percent fewer strokes, with no extra benefit at higher intakes. The link held after adjusting for smoking, BMI, diabetes, blood pressure and alcohol.
Food
Eating too much fat boosts stroke risk
Following 7,579 women and 6,372 men in Copenhagen for 33 years, Marianne Benn tied rising non-fasting triglycerides to ischemic stroke in both sexes; women in the highest band were nearly four times as likely to have one. Cholesterol tracked with risk only in men.
Disease
Stroke news for today
Two items: the industry-backed Calorie Control Council disputes a study tying diet soda to ischemic stroke, noting it was not peer reviewed and rested on self-reported data; and University of Michigan researchers project stroke among Mexican Americans could rise 350 percent by 2050.
Drug
Statins Raise Stroke Risk
Researchers reported in Archives of Neurology that people who have had a bleeding stroke face a higher risk of a second one on statins: 22 percent among those with lobar strokes taking the drugs against 14 percent among those not. Why statins raise the bleeding risk is unclear.
Disease
HIV patients suffer more strokes
Reviewing U.S. hospital data from 1997 to 2006, Bruce Ovbiagele found stroke admissions fell 7 percent overall while those with co-existing HIV rose 60 percent, from 888 to 1,425. HIV patients went from 0.09 to 0.15 percent of stroke hospitalizations.
Food
Eating fried fish may boost stroke risk
A Neurology study of 21,675 adults found African-Americans and residents of the Southern stroke belt ate more fried fish than others, adding to evidence that fried fish may raise stroke risk. Frying can turn fish fatty acids into artificial trans fat.
Vitamins
Vitamin D deficiency does not increase stroke risk among blacks
Among 7,981 adults, whites deficient in vitamin D were twice as likely to die of stroke as those with higher levels, but no such link appeared among blacks, who were 60 percent more likely to die of stroke overall. Deficiency was far more common in blacks, 32 percent against 7.
Heart & Blood
Job stress, cholesterol boost cardiovascular disease risk
Among 17,415 healthy women followed over a decade in the Women's Health Study, those reporting high job stress faced 40 percent higher risk of heart attack, stroke, bypass surgery, angioplasty or death. Job insecurity tracked with risk factors but not with events.
Miscellaneous
Leading death causes in the U.S.
CDC's National Vital Statistics Reports counted 2,423,712 U.S. deaths in 2007, led by heart disease at 616,067 and cancer at 562,875. Life expectancy was 77.9 years and infant mortality 6.75 per 1,000 live births, ranking the U.S. 46th of 224 countries.
Miscellaneous
President Kennedy's adviser Theodore C. Sorensen dies
Theodore C. Sorensen, John F. Kennedy's counselor for 11 years, died at 82 in New York, reportedly from complications of a stroke. An accompanying summary of stroke research ties increased waist-to-hip ratio and periodontal disease to higher stroke risk.
Disease
World Stroke Day
The 2010 World Stroke Day campaign asks people to commit to six steps: know your risk factors, stay active, eat well to avoid obesity, limit alcohol, avoid cigarette smoke, and learn the warning signs and call 911. Its theme notes 1 in 6 people worldwide will have a stroke.
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