Join The Talk You are not logged in.  |   Login  |   View Topics  |   Medical Commentator Bios  |  

Health Headlines

People who are allergic to one type of nut are usually told to avoid all types of tree nuts, however, this may be an unnecessary caution.
Researchers reveal that anti-CD47, an antibody that is being tested as an anti-cancer agent, reverses fibrosis in mice.
Online sharing through wearable devices motivates runners to run faster and further.
MORE health and medical news delivered to your email every week:
Heart mitochondria build power grid networks that enable them to limit disturbances in energy flow to a smaller region, preventing damage to an entire muscle
New study reveals that drinking beetroot juice prior to working out enables the aging brain to perform more efficiently and appear younger.
Combining acupuncture with an electrical current may benefit overweight women who are unable to exercise and those with polycystic ovarian syndrome (PCOS)
Self-taught artificial intelligence can predict heart attacks more accurately than doctors.
Study discloses top 10 consumer product chemicals in dust, with known or suspected health implications.
Women who frequently have hot flashes between the ages of 40 - 53 years may be more likely to have poor vascular function regardless of CVD risk factors..
New research concludes that brain games do not actually improve cognition or help in preventing age-related brain decline.
Anti-Aging Forum



Vitamin D

Page: 1
Vitamin D is key for the development and maintenance of healthy bones. It also has many positive effects on the immune system, endocrine glands, and cardiovascular system.

Some observational studies have linked vitamin D deficiency with a higher risk of colorectal and breast cancer, while others have found a correlation between vitamin D levels and the risk of autoimmune diseases such as type 1 diabetes and multiple sclerosis.

A new study - carried out by researchers from the University of Birmingham in the United Kingdom - investigates the effect of vitamin D levels on muscle strength.

The findings were published in the journal PLOS One.

Analyzing the effect of vitamin D on muscle mass

Using innovative technology, researchers were able to study both active and inactive vitamin D levels, together with their impact on muscle strength.

Vitamin D - whether it is in D2 or D3 form - is, by itself, biologically inactive, until it is activated by two enzymatic reactions: one in the liver and the other in the kidney.

Dr. Zaki Hassan-Smith, from the University of Birmingham, explains the novelty of the research procedure in the current study:

"Previous studies have tested for the inactive forms of vitamin D in the bloodstream, to measure vitamin D deficiency. Here, we were able to develop a new method of assessing multiple forms of vitamin D, alongside extensive testing of body composition, muscle function, and muscle gene expression."

The team examined vitamin D levels in 116 healthy participants aged between 20 and 74. They also measured the participants' body fat and "lean body mass" - a measure of muscle mass, obtained by subtracting the body fat weight from the total body weight.

Supplemental vitamin D may enhance muscle function

The researchers found that women who had a healthy composition and lower levels of body fat were less prone to high levels of inactive vitamin D - a common marker of vitamin D deficiency.

Conversely, women with more body fat tended to have less inactive vitamin D. While this does suggest a relationship between vitamin D and body composition, the active form of vitamin D did not correlate with body fat. Instead, vitamin D levels were linked with lean mass.

People who had a higher lean mass and muscle mass also had higher levels of active vitamin D. This suggests that active vitamin D may help to optimize muscle strength.

Dr. Hassan-Smith explains the findings, which echo previous studies that have suggested a link between a lack of muscle mass and low vitamin D levels:

"By looking at multiple forms in the same study, we can say that it is a more complex relationship that previously thought. It may be that body fat is linked to increased levels of inactive vitamin D, but lean mass is the key for elevated levels of active vitamin D. It is vital to understand the complete picture, and the causal mechanisms at work, so we can learn how to supplement vitamin D intake to enhance muscle strength."

The scientists also note that some of the beneficial associations were not found in men, and that future, larger-scale studies are needed to establish whether the differences noticed are purely biological. The researchers plan to work with international colleagues in order to study the mechanisms in laboratory studies and clinical trials.

"We have a good understanding of how vitamin D helps bone strength, but we still need to learn more about how it works for muscles," Dr. Hassan-Smith explains. "When you look at significant challenges facing healthcare providers across the world, such as obesity and an aging population, you can see how optimizing muscle function is of great interest."

--- Last Edited by Greentea at 2017-02-16 08:49:56 ---

Rate this topic:
1 2 3 4 5
You have submitted a rating for this topic.
Page: 1

Please login to post a reply. Forum is Powered by Sphene Community Tools
DISCLAIMER: The informational material appearing at The World Health Network Forum (“WHN Forum”) is for educational purposes only and is not intended to prevent, diagnose, treat or cure disease or illness. The posts on The World Health Network Forum are the opinion of the specific author and are not statements of advice, opinion, or factual information implied or expressed by or on behalf of The American Academy of Anti-Aging Medicine (A4M), The World Health Network (WHN), or officers, employees, or contracted agents of the aforementioned entities, none of whom make any claims to promote, endorse, suggest, nor recommend any informational material appearing at The WHN Forum. The American Academy of Anti-Aging Medicine (A4M), The World Health Network (WHN), and officers, employees, and contracted agents of the aforementioned entities do not advocate the use of any particular healthcare protocol or therapeutic agent, but The WHN Forum shares such informational material available with the public. The content of posts at The WHN Forum, including but not limited to links to other web sites, are the expressed opinion of the original author and are in no way representative of or endorsed by The American Academy of Anti-Aging Medicine (A4M), The World Health Network (WHN), and officers, employees, and contracted agents of the aforementioned entities. The WHN Forum is provided "as is" without warranty of any kind, either expressed or implied. You should not assume that The WHN Forum is error-free or that it will be suitable for the particular purpose which you have in mind when using it. In no event shall American Academy of Anti-Aging Medicine (A4M), The World Health Network (WHN), and officers, employees, and contracted agents of the aforementioned entities be liable for any special, incidental, indirect or consequential damages of any kind, or any damages whatsoever, including, without limitation, those resulting from loss of use, data or profits, whether or not advised of the possibility of damage, and on any theory of liability, arising out of or in connection with the use or performance of The WHN Forum or other documents which are referenced by or linked to The WHN Forum.

Platinum ELITE sponsors
GOLD sponsors
SILVER sponsors
Media Partners