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Of Vasectomies, Vitamins and Prostate-Cancer Risk

..."This is an important public-health question, and we believe that our results will be reassuring to physicians performing the procedure and to couples selecting vasectomy for contraception," she says.

Vasectomy costs less than tubal ligation, the surgical-contraceptive counterpart for women, and is associated with fewer side effects.

While several other recent studies also have found no association between vasectomy and Researchers from the University of Washington School of Public Health and Community Medicine and Seattle’s Northwest Prostate Institute also collaborated on the study.

While some of the earlier studies were flawed substantially by factors ranging from selection bias to second-hand data collection, other investigations of more rigorous scientific design reported conflicting results that raised legitimate concern about a possible association between vasectomy and The Hutchinson Center’s five-year study of 1,456 men ages 40 to 64 compared 753 men in King County who had prostate cancer to 703 who did not.

In addition to whether they’d had a vasectomy, the men answered questions regarding medical history, screening for

April 2006 PSA

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If your group or organization would like someone to come and speak, please call 524-1217 to obtain a complete brochure or for more information.The Center for Health and Wellness is promoting the Get Moving Vermont program in conjunction with the St.

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More cancers in the eye of the vaccine needle

...For leukemia, the doctors start with "off the shelf" leukemia cells, grown in the lab.

They irradiate them to stop them from dividing.

"That's crucial.

They're alive but unable to divide," says Peter Working, a cell biologist and senior vice president of the company.

"You don't want to give someone a dividing, growing cancer." The next step is to add a special gene to the cells.

This gene makes the leukemia cells secrete a molecular signal that lures immune cells, just as bait attracts fish.

Then the juiced-up leukemia cells are injected into the body of a leukemia patient.

Lured by the molecular signal, the immune cells smack right into the cancer cells.

This forced face-to-face encounter makes the immune cells react to the cancer, which ordinarily they would ignore.

The cells then speed off to tell the rest of the immune system about this new invader and how to recognize it.

And the immune system goes on the attack.

The company uses the same basic approach for vaccines against prostate and pancreatic cancer.

It has seen some patients gain six extra months of life compared with patients who got standard cancer drugs.

But "we're not making claims yet based on this data," says Working.

"We need bigger trials, which should be finished in 2008 or 2009." David Berd tells a similar story about the melanoma vaccine he's developing, M-Vax.

Berd is a medical oncologist at Thomas Jefferson University in Philadelphia.

His approach is to remove a ...

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