Featured Research

from universities, journals, and other organizations

Vitamin D may treat or prevent allergy to common mold

Date:
August 18, 2010
Source:
Louisiana State University Health Sciences Center
Summary:
Vitamin D may be an effective therapeutic agent to treat or prevent allergy to a common mold that can complicate asthma and frequently affects patients with cystic fibrosis.

Research conducted by Dr. Jay Kolls, Professor and Chair of Genetics at LSU Health Sciences Center New Orleans, and colleagues, has found that vitamin D may be an effective therapeutic agent to treat or prevent allergy to a common mold that can complicate asthma and frequently affects patients with Cystic Fibrosis.

Related Articles


The work is scheduled to be published online August 16, 2010, ahead of the print edition of the September 2010 issue of the Journal of Clinical Investigation.

The environmental mold, Aspergillus fumigatus, is one of the most prevalent fungal organisms inhaled by people. In the vast majority, it is not associated with disease. However, in asthmatics and in patients with Cystic Fibrosis (CF), it can cause significant allergic symptoms. Up to 15% of CF patients develop a severe allergic response called Allergic Bronchopulmonary Aspergillosis (ABPA). Since the mold is so common, the researchers wanted to identify the factors that determine why only a subset of patients develop the allergy and what factors regulate tolerance or sensitization to the mold resulting in the development of ABPA. To gain insights, the group studied two groups of patients with CF. Both groups were colonized with A. Fumigatus, but only one had ABPA.

The researchers focused on Th2 cells-the hormonal messengers of T-helper cells that produce an allergic response. They found that a protein called OX40L was critical in driving Th2 responses to A. fumigatus in the CD4+T cells isolated from patients with ABPA and that this group had a much greater Th2 responses to A. Fumigatus. The CD4+T cells from the group of patients that did not have ABPA had higher levels of the proteins, FoxP3 and TGF-ί, critical to the development of allergen tolerance. The researchers discovered that heightened Th2 reactivity in the ABPA group correlated with a lower average blood level of vitamin D.

"We found that adding vitamin D not only substantially reduced the production of the protein driving an allergic response, but it also increased production of the proteins that promote tolerance," notes Dr. Jay Kolls, Professor and Chair of Genetics at LSU Health Sciences Center New Orleans.

According to the National Institutes of Health, Cystic fibrosis (CF) is the most common, fatal genetic disease in the United States. About 30,000 people in the United States have the disease. CF causes the body to produce thick, sticky mucus that clogs the lungs, leads to infection, and blocks the pancreas, which stops digestive enzymes from reaching the intestine where they are required in order to digest food. It is estimated that about 70,000 people worldwide have the disease.

Recent research has suggested that low levels of vitamin D may contribute to heart disease, a higher risk of diabetes, certain cancers, and depression as well as asthma, colds, and other respiratory disorders.

"Our study provides further evidence that vitamin D appears to be broadly associated with human health," notes Dr. Jay Kolls, Professor and Chair of Genetics at LSU Health Sciences Center New Orleans. "The next step in our research is to conduct a clinical trial to see if vitamin D can be used to treat or prevent this complication of asthma and Cystic Fibrosis."


Story Source:

The above story is based on materials provided by Louisiana State University Health Sciences Center. Note: Materials may be edited for content and length.


Journal Reference:

  1. James L. Kreindler, Chad Steele, Nikki Nguyen, Yvonne R. Chan, Joseph M. Pilewski, John F. Alcorn, Yatin M. Vyas, Shean J. Aujla, Peter Finelli, Megan Blanchard, Steven F. Zeigler, Alison Logar, Elizabeth Hartigan, Marcia Kurs-Lasky, Howard Rockette, Anuradha Ray, Jay K. Kolls. Vitamin D3 attenuates Th2 responses to Aspergillus fumigatus mounted by CD4+ T cells from cystic fibrosis patients with allergic bronchopulmonary aspergillosis. Journal of Clinical Investigation, 2010; DOI: 10.1172/JCI42388

Cite This Page:

Louisiana State University Health Sciences Center. "Vitamin D may treat or prevent allergy to common mold." ScienceDaily. ScienceDaily, 18 August 2010. <www.sciencedaily.com/releases/2010/08/100816122122.htm>.
Louisiana State University Health Sciences Center. (2010, August 18). Vitamin D may treat or prevent allergy to common mold. ScienceDaily. Retrieved November 25, 2014 from www.sciencedaily.com/releases/2010/08/100816122122.htm
Louisiana State University Health Sciences Center. "Vitamin D may treat or prevent allergy to common mold." ScienceDaily. www.sciencedaily.com/releases/2010/08/100816122122.htm (accessed November 25, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Tuesday, November 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) — The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com
Madagascar Working to Contain Plague Outbreak

Madagascar Working to Contain Plague Outbreak

AFP (Nov. 24, 2014) — Madagascar said Monday it is trying to contain an outbreak of plague -- similar to the Black Death that swept Medieval Europe -- that has killed 40 people and is spreading to the capital Antananarivo. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Are Female Bosses More Likely To Be Depressed?

Are Female Bosses More Likely To Be Depressed?

Newsy (Nov. 24, 2014) — A new study links greater authority with increased depressive symptoms among women in the workplace. Video provided by Newsy
Powered by NewsLook.com
Winter Can Cause Depression — Here's How To Combat It

Winter Can Cause Depression — Here's How To Combat It

Newsy (Nov. 23, 2014) — Millions of American suffer from seasonal depression every year. It can lead to adverse health effects, but there are ways to ease symptoms. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins