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Thursday, September 20, 2007

Oestrogen is thought to protect the brain

A study is thought that Oestrogen can helps to protect the brain from declines and thinking ability. Might removal of the ovaries, which secreate the hormone, impair a women cognitive ablities. A study saw 2961 women and about half of the women had one of or both their ovaries removed for reasons unrelated to cancer, such as endometriosis or ovarian cysts. During the next 25 to 30 years, 248 of the women developed dementia. Those who had an ovariectomy before menopause, regardless of the reason, were about one and a half times more likely to have dementia than were women who did not have any surgery.

The younger the women were when the ovaries were removed, the more likely they were to have developed dementia. Who may be affected?. Women who have an ovariectomy. In USA, about half of the 600,000 women each year who undergo hysterectomy- removed of hte uterus, also have theirs ovaries removed, usually in hopes of preventing ovarian cancer. Ovaries also are removed to treat ovarian cancer and oestrogen related tumours, such as breast cancer.


Blood test for cancer risk

A traditional colonoscopy however, is considered the most accurated test and it was recommends by the American cancer society that patients undergo at least one colonoscopy every ten years, beginning at the age of fifty. Black people and peoplewhose family history of colorectal cancer should begin screening earlier, said an experts.

The procedure and the problemsrequires fasting, consumption of powerful laxatives, anaesthesia and the insertion of a optical scope in the restum. It also carries that risk of punctured colon. This combination has given colocoscopy its unplesant reputation said one of the doctor.

In the study last week, the researchers tested 107 patients for the proteint and used the results to determine if they had cancer or were at risk for cancer. The patient that underwent colonoscopies, and the results from the two tests were compared. The blood test found that 28 of the patients had cancer, the same number of cases discovered by colonoscopy. The test was slightly less apt at fining precancetous poltps, and it found 14 of the 18 cases that were discovered by colonoscopy.