Tuesday, January 12, 2010

Extra hour of TV a day can kill, say medical witch doctors

Lord love us! More epidemiological "wisdom". They found, unsuprisingly, that people in poor health watched slightly more TV but in their wisdom from on high they interpreted it the other way around! It must be wonderful to have God-given insight that dispenses with the need for evidence! I personally watch TV about once a year but have no time for fraudulent scares. Scares that simply lead to needlessly upset children are particularly obnoxious

VIDEO killed the radio star, according to the famous Buggles song, but new research suggests television is killing the rest of us too. An additional hour in front of the box each day increases the risk of dying from cardiovascular disease by 18 per cent, according to Australian research published in the Journal of the American Heart Association. Each extra hour increases by 11 per cent the overall likelihood of dying from all causes, including cancer.

"The human body was designed to move, not sit for extended periods of time," the study's lead author, David Dunstan, said. "But technological, social and economic changes mean that people don't move their muscles as much as they used to. "For many people, on a daily basis they simply shift from one chair to another."

Prof Dunstan, from the Baker IDI Heart and Diabetes Institute in Melbourne, said sitting for long periods was bad for blood sugar and fats - even if you were healthy. The link between television viewing and increased mortality held true regardless of other risk factors such as smoking, poor diet, high cholesterol and obesity.

The average Australian watched three hours of television every day. The researchers monitored the viewing habits of 8800 adults over six years before publishing the alarming results. They found someone who watched four hours of TV each day had an 80 per cent higher risk of death from heart disease compared to someone who watched less than two hours.

They were 46 per cent more likely to die from all causes. Prof Dunstan said the findings suggested any prolonged sedentary behaviour, such as sitting at a desk or computer for work, could be risky. The answer? "Move more, more often." "In addition to doing regular exercise, avoid sitting for prolonged periods," he said. "Too much sitting is bad for health."


Broccoli really is good for you

Even though George Bush senior refuses to eat it! But in the study below it was shown to be helpful only if you have stomach ulcers and if you eat a lot of salt. Unclear how important the finding is. The action seems to be bacteriocidal but existing antibiotics are also effective against the bug that causes stomach ulcers. Also unclear is generalizability. The sample is small and the Japanese are unusually prone to stomach ulcers, possibly because they eat very large amounts of salt (in soy sauce, for instance)

Dietary Sulforaphane-Rich Broccoli Sprouts Reduce Colonization and Attenuate Gastritis in Helicobacter pylori–Infected Mice and Humans

By Akinori Yanaka1 et al.


The isothiocyanate sulforaphane [SF; 1-isothiocyanato-4(R)-methylsulfinylbutane] is abundant in broccoli sprouts in the form of its glucosinolate precursor (glucoraphanin). SF is powerfully bactericidal against Helicobacter pylori infections, which are strongly associated with the worldwide pandemic of gastric cancer. Oral treatment with SF-rich broccoli sprouts of C57BL/6 female mice infected with H. pylori Sydney strain 1 and maintained on a high-salt (7.5% NaCl) diet reduced gastric bacterial colonization, attenuated mucosal expression of tumor necrosis factor-{alpha} and interleukin-1╬▓, mitigated corpus inflammation, and prevented expression of high salt-induced gastric corpus atrophy. This therapeutic effect was not observed in mice in which the nrf2 gene was deleted, strongly implicating the important role of Nrf2-dependent antioxidant and anti-inflammatory proteins in SF-dependent protection. Forty-eight H. pylori–infected patients were randomly assigned to feeding of broccoli sprouts (70 g/d; containing 420 ┬Ámol of SF precursor) for 8 weeks or to consumption of an equal weight of alfalfa sprouts (not containing SF) as placebo. Intervention with broccoli sprouts, but not with placebo, decreased the levels of urease measured by the urea breath test and H. pylori stool antigen (both biomarkers of H. pylori colonization) and serum pepsinogens I and II (biomarkers of gastric inflammation). Values recovered to their original levels 2 months after treatment was discontinued. Daily intake of sulforaphane-rich broccoli sprouts for 2 months reduces H. pylori colonization in mice and improves the sequelae of infection in infected mice and in humans. This treatment seems to enhance chemoprotection of the gastric mucosa against H. pylori–induced oxidative stress.

Cancer Prevention Research 2, 353, April 1, 2009

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