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Cancer prevention: stopping cancer before it can start
Date:4/14/2008

h calorie, high fat dietinduced obese regimen (n = 12).

The mice developed spontaneous pancreatic lesions as early as four weeks, with 100 percent approaching death within six to eight months, the researchers report. The calorie-restricted animals were significantly protected from spontaneous formation of pancreatic lesions: 7.5 percent of them developed lesions in stark contrast to 45 percent of the overweight group and 57.5 percent of the diet-induced obese group, the researchers report. Furthermore, calorie-restricted mice had smaller lesions than those in the overweight and diet-induced obese groups.


Gemini vitamin D analogs inhibit estrogen receptor positive and estrogen receptor negative mammary tumorigenesis without hypercalcemic toxicity: Abstract 2097

Researchers at Rutgers University have found that, in animal studies, a synthetic form of active vitamin D has a substantive preventive effect on the development of both estrogen receptor (ER)-positive and ER-negative breast cancers. Unlike many of the other synthetic vitamin D agents that have been tested in humans, this compound, known as Gemini 0097, shows no toxicity, they report.

The research team found that daily injections of Gemini 0097 cut growth of ER-positive cancer by 60 percent in rat studies, and reduced ER-negative breast cancer by half in mice.

These are very promising findings, especially because no toxicity is observed, said researcher Hong Jin Lee, a graduate student at Rutgers. Lee works in the laboratory of lead investigator Nanjoo Suh, Ph.D., an assistant professor at the Susan Lehman Cullman Laboratory for Cancer Research at Rutgers, the State University of New Jersey. Suh said that Gemini 0097 likely did not cause the most common vitamin D toxicity, an overload of calcium in blood known as hypercalcemia, because the compound has an extra side chain of chemicals.

It is quite different from the natural shape
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Contact: Staci Vernick Goldberg
Staci.goldberg@aacr.org
267-646-0616
American Association for Cancer Research
Source:Eurekalert

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