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 High Cholesterol Tied to Prostate Cancer
A study of nearly 3,000 Italian men found a direct relationship
between cholesterol levels and prostate cancer risk. Men over
the age of 65 with prostate cancer were 80 percent more likely
to have high cholesterol, compared with men who did not have
prostate cancer. Men under 65 with prostate cancer were 32 percent
more likely to have high cholesterol. The researchers note that
male hormones that play a role in prostate cancer are synthesized
from cholesterol. However, the relationship could also be indirect
since the dietary components responsible for increasing a prostate
cancer risk (such as high-fat meat and dairy products) also tend
to increase the amount of cholesterol in the bloodstream. The
same steps that lower cholesterol may also lower prostate cancer
risk.
Bravi F, Scotti L, Bosetti C, et al. Self-reported history
of hypercholesterolaemia and gallstones and the risk of prostate
cancer. Ann Oncol.
2006 Jun;17(6):1014-1017.
Soy Food Consumption Lowers Breast Cancer Risk
A new study shows that soybean products may reduce breast cancer
risk. A meta-analysis conducted at Johns Hopkins School of Medicine
examined the combined results of 18 prior studies on soy exposure
and breast cancer risk published between 1978 and 2004. The analysis
found that among all women, high soy intake lowered breast cancer
risk by 14 percent. The protective effect was particularly strong
for premenopausal women. Many factors play a role in breast cancer
incidence, including late age at first full-term pregnancy, early
menarche, obesity, lack of physical activity, alcohol consumption,
and other nutritional factors. Soy consumption during childhood
and puberty may also play a role in reducing breast cancer risk.
Trock BJ, Hilakivi-Clarke L, Clarke R. Meta-analysis of soy intake
and breast cancer risk. J Natl Cancer Inst. 2006 Apr 5;98:459-71.
 Extra Belly Weight Increases Colon Cancer Risk in Women
Extra body fat is linked to increased risk for colon cancer. In
an Australian study following 24,072 women for 10 years, those
with the most abdominal fat were more likely than thinner women
to develop colon cancer. Every four inches of extra abdominal
girth increased risk by 14 percent. Other research has shown that the best way to lose weight (or to
maintain a healthy weight) is to follow a diet built from whole
grains, legumes, vegetables, and fruit.
Macinnis RJ, English
DR, Hopper JL, Gertig DM, Haydon AM, Giles GG. Body size and composition
and colon cancer risk in women. Int
J Cancer. 2006 Mar 15;118:1496-500.
 The
Cancer Project is a nonprofit PCRM subsidiary that advances
cancer prevention and survival through nutrition education
and research.
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