Navigation Links
Vitamin D supplements may protect against viral infections during the winter
Date:4/30/2012

Vitamin D may be known as the sunshine vitamin, but a new research report appearing in the Journal of Leukocyte Biology shows that it is more than that. According to the report, insufficient levels of vitamin D are related to a deficiency in our innate immune defenses that protect us from infections, neoplasias or autoimmune diseases. Since vitamin D levels decrease during autumn and winter when days are shorter and sunlight is relatively weak, this may explain why people are more prone to viral infection during these times. It also suggests that vitamin D supplementation, especially in older populations, could strengthen people's innate immunity against viral infections.

"There are numerous studies showing the benefits of maintaining adequate Vitamin D levels. As more and more research into Vitamin D is conducted, we are learning that it is extremely important for human health. Our study is no different, and vitamin D supplements should be considered one of many tools that might help when conventional therapies are not enough," said Victor Manuel Martinez-Taboada, M.D., a researcher involved in the work from the Division of Rheumatology at the Hospital Universitario "Marque's de Valdecilla," Facultad de Medicina at the Unversidad de Cantabria, in Santander, Spain.

To make this discovery, the researchers compared the changes in the blood levels of vitamin D among three groups of healthy subjects: young (age range: 20-30), middle (age range: 31-59), and elderly (age range: 60-86). They found decreased levels of vitamin D with aging, prompting researchers to compare whether such changes kept any relationship with toll-like receptor (TLR) expression measured on lymphocytes and monocytes and function after in vitro stimulation with specific ligands for each of the nine human TLRs and measurement of effector molecules, such as proinflammatory cytokines. Specifically, they found that the TRL most affected by a vitamin D insufficiency is TLR7, which regulates the immune response against viruses. Finally, scientists studied whether there was any difference in the three age groups depending on the season of the year since it is well known that a limited sun exposure during darker winter months is related with vitamin D deficiency.

"Any school teacher will tell you that people tend to be sicker during the winter than any other time of the year," said John Wherry, Ph.D., Deputy Editor of the Journal of Leukocyte Biology. "There have been numerous studies showing several environmental factors during winter months may allow viruses to spread easier. This study shows that sunlight, or more precisely the lack of vitamin D, could have a role in the seasonally higher rates of infection. More extensive studies must be conducted for this link to be conclusive, but since vitamin D supplements are inexpensive and generally safe, this is a really exciting discovery."


'/>"/>

Contact: Cody Mooneyhan
cmooneyhan@faseb.org
301-634-7104
Federation of American Societies for Experimental Biology
Source:Eurekalert

Related biology news :

1. Clinical trial launches to see whether vitamin D helps treat multiple sclerosis
2. Researchers discover how vitamin D inhibits inflammation
3. Vitamin B and omega-3 supplementation and cancer: New data
4. Researchers warn nanoparticles in food, vitamins could harm human health
5. Stealthy leprosy pathogen evades critical vitamin D-dependent immune response
6. New standard for vitamin D testing to ensure accurate test results
7. Elseviers Maturitas publishes position statement on the role of vitamin D in postmenopausal women
8. Scientists identify an innate function of vitamin E
9. Loyola receives NIH grant to study vitamin D deficiency in African populations
10. New study links excessive amounts of vitamin D to onset of atrial fibrillation
11. Low vitamin C levels may raise heart failure patients risk
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/21/2017)... -- Research and Markets has announced the addition of ... their offering. ... The global voice recognition biometrics market to grow at a CAGR ... covers the present scenario and the growth prospects of the global ... the report considers the revenue generated from the sales of voice ...
(Date:1/19/2017)... PUNE, India , January 19, 2017 ... Sensor Market, Opportunities and Forecast, 2014 - 2022," the global biometric sensor ... of 9.6% from 2016 to 2022. In 2015, Asia-Pacific ... for both public and private sectors. Continue Reading ... ...
(Date:1/19/2017)... 19, 2017 Sensory Inc ., ... security for consumer electronics, and i ... and cybersecurity solutions, today announced a global partnership ... institutions worldwide to bolster security of data sensitive ... user authentication platforms they offer, innerCore now offers ...
Breaking Biology News(10 mins):
(Date:1/23/2017)... , Jan. 23, 2017 /PRNewswire/ - Resverlogix Corp. ("Resverlogix" ... from the New Zealand based ... The data showed remarkable results in reducing inflamed protein ... control patients. It is believed that this is the ... of this type can be made between epigenetic regulation ...
(Date:1/23/2017)... , January 23, 2017 Atlas Genetics ... completion of its Series D financing, raising $35 million from ... investor, Wondfo Biotech. ... Development of the Atlas Genetics io┬« system has ... trachomatis (CT) test announced in February 2016.  This new Series ...
(Date:1/23/2017)... ... January 23, 2017 , ... Calvert Labs, Inc. announced ... and Senior Director, Safety Pharmacology. Dr. Thomas earned his M.Sc. and Ph.D. ... career as an academic and industry preclinical drug developer spans more than three ...
(Date:1/23/2017)... SAN CARLOS, Calif. , Jan. 23, 2017 ... on developing innovative treatments for neurodegenerative diseases and ... MBA, has joined the company as Chief Medical ... the translational and clinical development activities at Alkahest ... Dr. Jackson most recently served as Executive ...
Breaking Biology Technology: