Prebiotics may help activate anti-tumor immunity
Scientists at Sanford Burnham Prebys Medical Discovery Institute have shown that two prebiotics, mucin and inulin, slowed the growth of melanoma in mice by boosting the immune system’s ability to fight cancer. In contrast to probiotics, which are live bacterial strains, prebiotics are “food” for bacteria and stimulate the growth of diverse beneficial populations. The study, published today in Cell Reports, provides further evidence that gut microbes have a role in shaping the immune response to cancer, and supports efforts to target the gut microbiome to enhance the efficacy of cancer therapy.
#inulin #prebiotics #cancer
Prebiotic-Induced Anti-tumor Immunity Attenuates Tumor Growth
Yan Li, Lisa Elme´ n, Igor Segota, Tao Long, Scott N. Peterson, Ze’ev A. Ronai
In this Issue:
1. Amino acid with promising anti-diabetic effects
2. Substance that gives grapefruit its flavor and aroma could give insect pests the boot
3. New study discovers copper destroys highly infectious norovirus
4. Codeine could increase users’ sensitivity to pain
5. Research treats the fungus among us with nontoxic medicinal compound
6. Diets Low in Polyunsaturated Fatty Acids May Be a Problem for Youngsters
7. Obese stomachs tell us diets are doomed to fail
8. Red grapes, blueberries may enhance immune function
9. Can vitamin B supplements help stave off stroke?
Health Research Report
164th Issue Date 21 SEP 2013
Compiled By Ralph Turchiano
A rebuttal to the IOM’s recommendations of 20ng/ml of vitamin D being adequate. Their report being titled ” Nearly 80 Million Americans Won’t Need vitamin D Supplements under new guidlines”
2008 Study Posted for filing
Corvallis, Oregon – October 29, 2008 — Vitamin E has been heralded for its ability to reduce the risk of blood clots, heart attack, and sudden death. Yet in some people, vitamin E causes bleeding. Scientists have known for more than 50 years that excess vitamin E promotes bleeding by interfering with vitamin K, which is essential in blood clotting. However, they haven’t been able to pinpoint how the two vitamins interact. Nutrition researcher Maret Traber of Oregon State University reviews studies of possible explanations of the interaction in an article published recently in Nutrition Reviews.
One of the most compelling studies of the benefits of vitamin E is the Women’s Health Study, in which 40,000 healthy women, 45 and older, took 600 IU vitamin E supplements or a placebo every other day for 10 years. Women taking the supplements had 24 percent fewer deaths from heart disease. Vitamin E’s protective effect appeared even stronger in women 65 and older. Those taking the vitamin experienced a 26 percent reduction in cardiovascular events and a 49 percent reduction in cardiovascular deaths.
“That’s a significant benefit,” Traber said. Yet, she added, “In some people high doses of vitamin E increase the tendency to bleed. Women enrolled in the study had an increase in nose bleeds.”
To lessen the bleeding risk, the U.S.-based Food and Nutrition Board in 2000 set the upper tolerable limit for daily vitamin E intake at 1500 I.U.
Research Traber reviewed suggests that a shared metabolic pathway in the liver causes vitamins E and K to interact. Vitamin K in the liver appears to diminish as vitamin E increases.
“Several different explanations could account for the interaction between the two vitamins,” Traber said. “We need more research to understand the delicate balance between vitamins E and K.”