CSPI's Michael Jacobson says the caramel colourings made by reacting sugars with ammonia or sulfites carry 2- and 4-methylimidazole, which animal studies link to lung, liver and thyroid tumours. The group has petitioned the FDA to ban them; UC Davis found 0.30 to 0.36 ug/ml in colas.
Section archive
Page 10 of 18
Cancer
Diet, lifestyle and cancer risk, prevention and treatment.
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Food
Foods that fight cancer
Dr. William Li of the Angiogenesis Foundation lists foods that contain antiangiogenic substances — green tea, berries, citrus, bok choy, soy, turmeric, garlic, tomato, olive oil, dark chocolate and more — citing lab and epidemiological evidence that certain foods may help fight cancer.
Supplements
Sprouts plus supplements could boost broccoli’s anti-cancer ability
Four volunteers ate broccoli sprouts, broccoli powder, or both; blood and urine three hours later showed nearly twice the sulforaphane absorption from the combination. Sprouts supply myrosinase, the enzyme powder lacks and overcooking destroys.
Food
Vegetables show potential help to cancer treatment and prevention
Isothiocyanates from broccoli and other cruciferous vegetables may help prevent cancer by supporting the tumor suppressor gene p53, researchers suggest. In tests on lung, breast and colon cancer cells, the compounds stripped away decayed p53 while sparing the normal form.
Food
If You Eat Processed Meats, Are You Risking Your Life?
The World Cancer Research Fund's review of more than 7,000 studies concluded that processed meats cause bowel cancer and that no amount can confidently be shown not to raise risk. The meat industry called the report anti-meat; project director Martin Wiseman rejected that.
Environment
Tragically, Average Child in U.S. Gets Seven Radiation Scans
A large study found the average US child undergoes more than seven radiation scans by age 18, mostly X-rays; 42 percent had at least one procedure and 25 percent had two or more within three years. Dental X-rays were excluded. CT scans deliver far more radiation than X-rays.
Cancer
Preventing prostate cancer by suppressing a common protein
MD Anderson researchers report that the microRNA miR-34a kept prostate cancer from spreading by suppressing CD44, a surface protein on prostate cancer stem cells. The effect held in cell lines, human tumours grafted into mice, and primary human prostate cancer samples.
Disease
Kicking cancer but living with chronic pain
A University of Michigan study in Cancer found 20 percent of survivors at least two years past diagnosis had current cancer-related chronic pain, and more than 40 percent of the nearly 200 patients surveyed had pain since diagnosis. Women and African Americans fared worse.
Cancer
Cigarette smoke damages DNA within minutes, selenium, green tea reduce the risk
University of Minnesota researchers gave 12 volunteers cigarettes spiked with a labeled carcinogen and found blood levels of a DNA-damaging breakdown product peaked 15 to 30 minutes after inhaling. Separate research suggests dietary selenium may curb smoke-related DNA damage.
Food
Digested green tea prevents dementia like Alzheimer's
Newcastle University researchers found that gut enzymes break green tea into compounds that guard brain cells more effectively than the undigested ones, by interacting with hydrogen peroxide and beta-amyloid. Digested green tea also slowed tumour cell growth in their lab tests.
Cancer
Low fat diet cost-effective in preventing breast cancer, ovarian cancer
Modelling the Women's Health Initiative dietary change as a public programme, researchers put its cost at $13,773 per quality-adjusted life year for 50-year-olds and $10,544 for women at high breast cancer risk, cost-effective for society and Medicare but not for private insurers.
Disease
Insulin-like growth factor-I may boost death risk in older men
Following 633 older men for 18 years, researchers linked higher serum IGF-I to greater cancer mortality, independent of age, adiposity, lifestyle and cancer history. They urge caution about therapies that raise IGF-I to counter aging.
Government
Are airport scanners safe for travelers?
Four UCSF scientists wrote the White House science adviser about cancer risk from airport x-ray scanners, and one called the FDA's reply deeply flawed. Columbia's David Brenner and Arizona State's Peter Rez each put the dose or risk at roughly 10 times the government's figure.
Environment
Ionizing radiation boosts cardiovascular disease death risk
Health Canada researchers followed 337,397 workers occupationally exposed to ionizing radiation and recorded 3,533 cardiovascular deaths between 1951 and 1995, with risk rising alongside cumulative dose. They caution that non-radiation risk factors went unadjusted.
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.
Cancer
Eating vegetables, seafood may cut breast cancer risk - study
Comparing 357 Korean women with breast cancer to 357 age-matched controls, researchers found those eating the most vegetables and seafood were 86 percent less likely to be diagnosed. A meat-and-starch pattern showed no association, and menopausal status did not change the result.
Environment
Nickel carcinogenesis & Cobalt carcinogenesis
The piece gathers abstract excerpts reporting that the mechanism of nickel-induced cancer is not known and that cobalt raised tumor incidence at several sites in laboratory animals, then adds the author's own argument that nickel, cobalt and iron are both ferromagnetic and known carcinogens.
Cancer
Cigarette smoking may boost pancreatic cancer risk - study
In a study following 120,852 people for 16.3 years, current smokers had an 82 percent higher risk of pancreatic cancer and former smokers 34 percent, compared with never-smokers. Risk fell gradually after quitting and was no longer raised 20 years on.
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