Vitamin D Prescription- Health Benefits of Vitamin D

Entries from January 2010

Vitamin D Fights Crohns Disease

January 28, 2010 · Leave a Comment

Almost all of my patients with Crohns disease have vitamin D deficiency.  In addition, they are low in essential fatty acids, zinc, Vitamin B12, etc.  Here is a great article from Science Daily. (www.ScienceDaily.com)

ScienceDaily (Jan. 27, 2010) — A new study has found that Vitamin D, readily available in supplements or cod liver oil, can counter the effects of Crohn’s disease. John White, an endocrinologist at the Research Institute of the McGill University Health Centre, led a team of scientists from McGill University and the Université de Montréal who present their findings about the inflammatory bowel disease in the Journal of Biological Chemistry.

“Our data suggests, for the first time, that Vitamin D deficiency can contribute to Crohn’s disease,” says Dr. White, a professor in McGill’s Department of Physiology, noting that people from northern countries, which receive less sunlight that is necessary for the fabrication of Vitamin D by the human body, are particularly vulnerable to Crohn’s disease.

Vitamin D, in its active form (1,25-dihydroxyvitamin D), is a hormone that binds to receptors in the body’s cells. Dr. White’s interest in Vitamin D was originally in its effects in mitigating cancer. Because his results kept pointing to Vitamin D’s effects on the immune system, specifically the innate immune system that acts as the body’s first defense against microbial invaders, he investigated Crohn’s disease. “It’s a defect in innate immune handling of intestinal bacteria that leads to an inflammatory response that may lead to an autoimmune condition,” stresses Dr. White.

Vitamin D Prescription: The Healing Power of the Sun & How It Can Save Your Life

What Vitamin D does

Dr. White and his team found that Vitamin D acts directly on the beta defensin 2 gene, which encodes an antimicrobial peptide, and the NOD2 gene that alerts cells to the presence of invading microbes. Both Beta-defensin and NOD2 have been linked to Crohn’s disease. If NOD2 is deficient or defective, it cannot combat invaders in the intestinal tract.

What’s most promising about this genetic discovery, says Dr. White, is how it can be quickly put to the test. “Siblings of patients with Crohn’s disease that haven’t yet developed the disease might be well advised to make sure they’re vitamin D sufficient. It’s something that’s easy to do, because they can simply go to a pharmacy and buy Vitamin D supplements. The vast majority of people would be candidates for Vitamin D treatment.”

“This discovery is exciting, since it shows how an over-the-counter supplement such as Vitamin D could help people defend themselves against Crohn’s disease,” says Marc J. Servant, a professor at the Université de Montréal’s Faculty of Pharmacy and study collaborator. “We have identified a new treatment avenue for people with Crohn’s disease or other inflammatory bowel diseases.”

This study was funded by a grant from McGill University.

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Adapted from materials provided by McGill University Health Centre, via EurekAlert!, a service of AAAS.


Journal Reference:

  1. Tian-Tian Wang, Basel Dabbas, Ari J. Bitton, Hafid Soualhine, Luz E. Tavera-Mendoza, Serge Dionne, Alain Bitton, Ernest G. Seidman, Marcel A. Behr, John H. White, Marc J. Servant, David Laperriere and Sylvie Mader. Direct and indirect induction by 1,25-dihydroxyvitamin D3 of theNOD2/CARD15-beta defensin 2 innate immune pathway defective in Crohn’s diseaseThe Journal of Biological Chemistry, (in press)

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Vitamin D and Colon Cancer

January 28, 2010 · Leave a Comment

In my Book, Vitamin D Prescription, I  summarize many of the best articles out there on the connection between low levels of vitamin D and colon cancer. Dr. Garland from UCSD showed that blood levels above  50 ng/ml can reduce colon cancer by 50%.  For a cancer that affects 1 in 18 people, a 50% reduction is incredible.   While critics claim we need double blind randomized control studies before we can “prove this”, let me  remind you  that there is no such double blind study showing a link between lung cancer and heart disease’s connection to cigarette studies.  As  a matter of fact, because of all the retrospective evidence of the connection, doing the study would not be very ethical.

Retrospective studies provide a lot of evidence. With the virtually absent side effects to vitamin D supplementation, not taking sufficient quantities is absurd in my opinion and outright dangerous.   Other studies cited show how higher vitamin D leads to more apoptosis of malignant cells, thereby presenting the mechanism by which vitamin D prevents colon cancer.

To read more about this and the vitamin D connection to Breast cancer, prostate cancer, heart disease, kidney disease and more, I encourage you to pick up a copy on amazon.com of   Vitamin D Prescription: The Healing Power of the Sun & How It Can Save Your Life

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REUTERS HEALTH

Among more than 1200 people who developed colorectal cancer and an equal number who did not, researchers found that those with the highest levels of vitamin D in their blood had a nearly 40 percent reduced risk of developing colorectal cancer compared to those with the lowest levels.

The findings from the EPIC study – short for European Prospective Investigation into Cancer and Nutrition — confirm previous findings from smaller studies conducted largely among North American populations.

The EPIC findings “support a role for vitamin D” in the causes of colorectal cancer, EPIC investigator Dr. Mazda Jenab of the International Agency for Research on Cancer in Lyon, France, told Reuters Health.

“But this has to be balanced with caution regarding the potential toxic effects of too much vitamin D and the fact that very little is known about the association of vitamin D with either increased or reduced risk of other cancers,” Jenab said.

EPIC coordinator Dr. Elio Riboli of Imperial College, London, added: “There is consistent scientific evidence that low circulating vitamin D concentration is a marker of increased risk for developing colon cancer.”..read more here….

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Lower Levels of Vitamin Increase Heart Risk in Blacks

January 16, 2010 · Leave a Comment

WEDNESDAY, Jan. 6 (HealthDay News) — New research indicates that the darker skin of blacks may increase their risk of heart disease and stroke because it reduces production of vitamin D, which is made during exposure to sunlight.

Several studies have associated low levels of vitamin D with an increased risk of cardiovascular disease and “the biggest source of vitamin D levels is sunlight,” said Dr. Kevin Fiscella, a professor of family medicine and community and preventive medicine at the University of Rochester, and co-author of a paper in the January/February issue of the Annals of Family Medicine. “People with dark skin who live at higher latitudes, where the intensity of sunlight is less, may be at greater risk.”

But the issue abounds with unanswered questions, starting with whether there is a real cause-and-effect relationship of vitamin D levels and cardiovascular risk, and ending with whether supplements that increase blood levels of the vitamin lower that risk, Fiscella said.

“We don’t truly know the answer,” Fiscella said. “That is the really pivotal question, what happens to cardiovascular risk if you correct blood levels of vitamin D. We do know that small supplements for middle-aged people don’t seem to have any effect.”

In the study, Fiscella and Dr. Peter Franks of the University of California, Davis, looked at data on more than 15,000 U.S. adults in a national nutritional study. They found that overall, the 25 percent of adults with the lowest levels of vitamin D had a 40 percent higher risk of cardiovascular death. When they singled out blacks, the report found a 38 percent higher incidence of such deaths than among whites. Most of that difference was related to lower levels of vitamin D...read more here

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Vitamin D and Nursing Home Falls

January 16, 2010 · Leave a Comment

SYDNEY, Jan. 15 (UPI) — Falls, a leading cause of death and disability in the elderly, may be reduced by vitamin D supplementation in nursing homes, Australian researchers say.

Lead researcher Ian Cameron of the Sydney Medical School said older people living in nursing facilities or admitted to a hospital are at higher risk for falls than those living at home. Hip fractures, which can be deadly, occur in nursing facilities at a rate 10 times greater than elsewhere.

Cameron and colleagues conducted a meta-analysis of 41 studies involving 25,422 olderpeople, mostly women. Five studies tested the effects of giving vitamin D to patients in nursing facilities, where it was found to be an effective measure for preventing falls, although researchers are not sure why.

The researchers found multifactorial interventions — which often incorporated exercise, medication or environmental factors including appropriate equipment — reduced the risk of falls in hospitals. In nursing homes, the effects of multifactorial interventions were not significant overall.

However, the researchers concluded multifactorial interventions provided by multidisciplinary teams in these facilities may reduce the rate and risk of falls.

“In our review, we saw limited evidence that these combined interventions work, but we could more confidently recommend them if they were delivered by a multidisciplinary team,” Cameron said.

read more…

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