Featured Research

from universities, journals, and other organizations

Gene variant linked with development of COPD in men

Date:
May 15, 2011
Source:
American Thoracic Society
Summary:
Researchers have linked a variant in the vitamin D receptor gene (VDR) with the onset of chronic obstructive pulmonary disease (COPD) in Caucasian men. The study population consisted of participants in the Veterans Administration Normative Aging Study, a multidisciplinary study of aging that began in 1963.

Researchers have linked a variant in the vitamin D receptor gene (VDR) with the onset of chronic obstructive pulmonary disease (COPD) in Caucasian men. The study population consisted of participants in the Veterans Administration Normative Aging Study, a multidisciplinary study of aging that began in 1963.

The VDR study was presented at the ATS 2011 International Conference.

"Our results show that this gene variant is associated with development of COPD in Caucasian men, and provides support for the notion that vitamin D metabolic pathways may affect COPD risk," said Audrey Poon, PhD, postdoctoral fellow at Meakins-Christie Laboratories, McGill University Health Centre in Montreal. The study was conducted while Dr. Poon was doing her first postdoctoral fellowship at Channing Laboratory, Brigham and Women's Hospital in Boston.

Although cigarette smoking is considered to be the main risk factor for chronic obstructive diseases such as emphysema and chronic bronchitis, only a proportion of smokers develop clinical disease. Researchers believe genetic factors also contribute to the risk of developing COPD. The vitamin D metabolic pathway has been implicated in the development of COPD.

"Several variants of genes that control vitamin D function and metabolism have been associated with COPD and other lung diseases, but results have been conflicting," Dr. Poon said. "In this study we investigated variants in two vitamin D pathway genes and their association with development of COPD."

Using DNA data from the VA study, the researchers determined the genotypes of 24 variants in the vitamin D receptor gene and 12 in the vitamin D binding protein gene in a total of 1,215 men. All subjects were free of known chronic conditions, including coronary heart disease, hypertension, chronic lung disease, asthma and diabetes at the time of recruitment.The VA study also offered data from repeated lung function measures conducted over 40 years, as well as smoking information for the participants.

The researchers used the lung function data to measure the time it took for participants to develop COPD, evaluating all 36 gene variants. They found variant rs3847987 of the VDR gene was found to influence the time to onset of COPD in the study population.

"We had the expectation that we would find an association of variants in one of these genes with the development of COPD," Dr. Poon said. "However, we did not expect that this particular variant in the VDR gene would be associated, since it has not been reported to be associated with COPD before."

Future studies will need to clearly determine the function of the gene variant, she added.

"More questions need to be answered before we can take any of these findings to clinical practice," Dr. Poon said. "For instance, we do not know what effect, if any, vitamin D levels would have on the risk of developing COPD and whether circulating vitamin D levels interact with genetic variants.

"Furthermore, we only selected two genes in the pathway, and there are numerous genes that are involved," she added. "If these findings are validated, then investigating the effect of this particular variant in the function of the vitamin D receptor will be important."


Story Source:

The above story is based on materials provided by American Thoracic Society. Note: Materials may be edited for content and length.


Cite This Page:

American Thoracic Society. "Gene variant linked with development of COPD in men." ScienceDaily. ScienceDaily, 15 May 2011. <www.sciencedaily.com/releases/2011/05/110515201309.htm>.
American Thoracic Society. (2011, May 15). Gene variant linked with development of COPD in men. ScienceDaily. Retrieved April 19, 2014 from www.sciencedaily.com/releases/2011/05/110515201309.htm
American Thoracic Society. "Gene variant linked with development of COPD in men." ScienceDaily. www.sciencedaily.com/releases/2011/05/110515201309.htm (accessed April 19, 2014).

Share This



More Health & Medicine News

Saturday, April 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

'Holy Grail' Of Weight Loss? New Find Could Be It

'Holy Grail' Of Weight Loss? New Find Could Be It

Newsy (Apr. 18, 2014) In a potential breakthrough for future obesity treatments, scientists have used MRI scans to pinpoint brown fat in a living adult for the first time. Video provided by Newsy
Powered by NewsLook.com
Little Progress Made In Fighting Food Poisoning, CDC Says

Little Progress Made In Fighting Food Poisoning, CDC Says

Newsy (Apr. 18, 2014) A new report shows rates of two foodborne infections increased in the U.S. in recent years, while salmonella actually dropped 9 percent. Video provided by Newsy
Powered by NewsLook.com
Scientists Create Stem Cells From Adult Skin Cells

Scientists Create Stem Cells From Adult Skin Cells

Newsy (Apr. 17, 2014) The breakthrough could mean a cure for some serious diseases and even the possibility of human cloning, but it's all still a way off. Video provided by Newsy
Powered by NewsLook.com
Obama: 8 Million Healthcare Signups

Obama: 8 Million Healthcare Signups

AP (Apr. 17, 2014) President Barack Obama gave a briefing Thursday announcing 8 million people have signed up under the Affordable Care Act. He blasted continued Republican efforts to repeal the law. (April 17) Video provided by AP
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:
from the past week

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