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:12/6/2016)... DALLAS , Dec. 6, 2016 ... criminal justice technology solutions for public safety, investigation, ... (PEP) jointly announced today a five (5) year ... exclusive agreement to expand the rehabilitation and reentry ... PEP History Established in 2004, the Prison ...
(Date:11/30/2016)... , Nov. 30, 2016 Not many of us realize that we ... of recovery so we need to do it well. Inadequate sleep levels have been ... blood pressure, stroke, diabetes, and even cancer. Maybe now is the best ... that could help them to manage their sleep quality? ... ...
(Date:11/29/2016)... Nearly one billion matches per second with DERMALOG,s high-speed AFIS    ... ... DERMALOG is Germany's largest Multi-Biometric supplier: The ... Identification Systems) ... Germany's largest Multi-Biometric supplier: The company's Fingerprint Identification System is part of ...
Breaking Biology News(10 mins):
(Date:12/9/2016)... ... December 09, 2016 , ... DuPont Industrial Biosciences ... the Breakthrough Solution of the Year Award from Platts Global Energy for ... The award was announced at the 18th Platts Global Energy Awards, held in ...
(Date:12/9/2016)... ALBANY, New York , December 9, 2016 /PRNewswire/ ... Research states that the top five players in the  ... of 62.7% in the overall market in 2015. Players ... and Perkin Elmer have remained dominant in the global ... persistent efforts to ensure product innovation. Product upgrades and ...
(Date:12/9/2016)... Dec. 9, 2016 China Cord Blood Corporation (NYSE: ... China,s leading provider of cord blood collection, laboratory ... today announced the results of its 2016 Annual General Meeting, ... S.A.R., China . At ... the re-appointment of KPMG Huazhen LLP as the independent auditors ...
(Date:12/9/2016)... India , December 9, 2016 According ... & Services (Primer, Probe, Custom, Predesigned, Reagent Equipment), Application (Research, PCR, ... Forecasts to 2021" published by MarketsandMarkets, the global market is expected ... in 2016, at a CAGR of 10.6% during the forecast period. ... ...
Breaking Biology Technology: