Tuesday, February 24, 2009

Calcium Linked To Lower Risk Of Intestinal Cancer



A new study of the USA noted that a higher calcium catch was related to a lower risk of total cancers among women only; and for the two men and women, it was dependent to lower the risk of cancers of the digestive system, and cancer colorectal in particular.

The study was the work of the researchers of the National institute against Cancer with Bethesda, Maryland and the AARP with Washington, C.C and was published in line on February 23 in the files of the internal medicine, one of the newspapers of JAMA/Archives.

The preceding studies bound catches of dairy product and of calcium to the cancer risk but the results contradictory and were limited, and the effect on the total cancer risk is also not very clear, wrote the authors in their basic information.

They also wrote that calcium is known to be good for the healthy bones and for this reason the institute of medicine recommends old adults 50 and have more than 1.200 milligrams of calcium per day and the 2005 dietetic directives for Americans indicates that they should have 3 cups per day of the dairy products with low content of or not fatty fat contents.

For the study the authors have data analysis on 293.907 men and 198.903 women of the NIH-AARP follow a mode and health and study. Stands of NIH for the national institutes of health and the AARP were formerly known like American association of the withdrawn people.

When they fell under the study between 1995 and 1996 that the participants had achieved a questionnaire of frequency of food which required them of them on foods ate and if they took supplements. The researchers correlated their answers with registeries of cancer of state to identify new cases of cancer at the beginning of the study until 2003.

Using a statistical tool called the risk proportional of Cox estimated to them the risks relative of various and total cancers at the men and of the women compared to the calcium catch.

The results showed that:

  • During 7 years an average follow-up, there were 36.965 cases of cancer at the men and 16.605 in the women.

  • There was no bond between the calcium catch and total cancer at the men.

  • There was a nonlinear bond between the calcium catch and total cancer among women, and it risk is descended while the daily calcium catch went up to Mg roughly 1.300 per day; no other reduction of risk occurred above this level.

  • Among men and women the catch of dairy product and calcium were conversely related to cancers of the digestive system.

  • Comparing the 20 percent of participants who ate the majority of calcium (1.530 and 1.881 mg/jour for the men and of the women respectively) with the 20 percent which ate less (526 and 494 mg/jour) shown a relative risk of cancer of the digestive system of 0.84 (16 percent lower) for the men and of 0.77 for women (23 percent lower).

  • This reduction was much more marked for cancer clorectal.

  • The calcium catch of the supplements was also dependent to lower the colorectal cancer risk.

  • The catch of calcium and dairy product was dependent with cancer, the breast cancer or the cancer of prostate in no other anatomical system without counting that the digestive system.

The authors concluded that:

Our results suggest that the compatible calcium catch to the current recommendations is associated at the lower risk of total cancer at the women and cancers of the digestive system, particularly cancer clorectal, at men and women.

The authors also wrote that the dairy product is high out of food which is thought to have the anti-cancer properties, those include calcium, the vitamin D and the combined linoleic acid. Also calcium was shown to reduce the abnormal growth and to support the normal turnover of the cells in the intestine and the center and binds to him to the bile and the fatty-acids, which is thought to reduce damage to the mucous membrane of the large intestine (includes the two points and the cecum).

The study was placed by the intramural research program of the National institute against the Cancer, which belongs to the national institutes of health.

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