Black Cohosh may promote cancer spread?

[Guest guest]

Hi All,

 

Hve any of you seen rapid spread of cancer after a client / patient

used Black Cohosh?

 

See: http://www.fhma.com/snippets3.htm#147

 

Black Cohosh may promote cancer spread: WASHINGTON June

13, 2003 MSNBC.COM—

 

Black cohosh, a herb popular for relieving the hot flashes and some

other unpleasant symptoms of menopause, may make cancer

more likely to spread, U.S. and Canadian researchers said.

This news is yet another blow to women looking for something to

safely ease the symptoms of menopause, which range from hot

flashes to a higher risk of heart disease and cancer.

Hormone replacement therapy has been found to worsen the risk of

heart disease, stroke, some cancers and Alzheimer’s, while some

herbal supplements, such as red clover, have been found to do no

good.

Many women had been taking black cohosh because it seemed to

ease the hot flashes and, because it was herbal, many presumed it

was safe.

Not so, researcher Vicki Davis of the Mylan School of Pharmacy at

Duquesne University in Pittsburgh told a meeting of the American

Association for Cancer Research. She said a woman who did not

know she had cancer could be endangered by taking the

supplement. “This stresses that we really need more research into

herbal therapies and natural therapies.”

Davis and colleagues in her lab and in Canada fed black cohosh to

female mice bred so that they are prone to breast cancer. They

gave them the daily equivalent of 40 mg of the supplement, the

amount normally recommended for menopausal symptoms.

The mice were not any more likely to develop breast cancer in the

first place. But those that did develop it were more likely to see a

deadly spread of the cancer, Davis said.

Her team found that 27 percent of mice that ate black cohosh had

the cancer spread to the lung, compared to 11 percent of the mice

that did not eat the herb.

The findings do not prove that a woman with undiagnosed breast

cancer could be endangered by using black cohosh, but Davis said

it would be risky to take it. Women who have breast cancer — or

any other form of cancer — may need to be especially wary, she

said.

It is not clear how black cohosh may make cancer more likely to

spread, Davis said. “And one thing we don’t know is whether it

might accelerate a tumor that might be likely to metastasize or

increase the numbers of tumors that would metastasize. But

neither one is good,” she said.

 

 

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