Featured Research

from universities, journals, and other organizations

Did evolution give us inflammatory disease?

Date:
March 22, 2013
Source:
Brigham and Women's Hospital
Summary:
Researchers demonstrate that some variants in our genes which could put a person at risk for inflammatory diseases -- such as multiple sclerosis, Crohn's disease or rheumatoid arthritis -- have been the target of natural selection over the course of human history.

In new research published in the April 4, 2013 issue of The American Journal of Human Genetics, researchers from Brigham and Women's Hospital (BWH) demonstrate that some variants in our genes that could put a person at risk for inflammatory diseases such as multiple sclerosis, Crohn's disease or rheumatoid arthritis, have been the target of natural selection over the course of human history.

The research team, led by Philip De Jager, MD, PhD, BWH Department of Neurology, and Barbara Stranger, PhD, University of Chicago looked at genome-wide association studies along with protein-protein interaction networks, as well as other data and found 21 places in the genome that bear a 'signature' for both inflammatory disease susceptibility and natural selection.

Towfique Raj, PhD, BWH Department of Neurology, is the lead author on this study. The findings suggest that in the past these variants rose in frequency in the human population to help protect us against viruses, bacteria and other pathogens. But now in our modern world, the environment and exposure to pathogens has changed, and the genetic variants that were originally meant to protect us, now make an autoimmune reaction more likely. These results are consistent with the hygiene hypothesis in which our cleaner environment is thought to contribute to the increasing prevalence of inflammatory diseases.


Story Source:

The above story is based on materials provided by Brigham and Women's Hospital. Note: Materials may be edited for content and length.


Journal Reference:

  1. Towfique Raj, Manik Kuchroo, JosephM. Replogle, Soumya Raychaudhuri, BarbaraE. Stranger, PhilipL. DeJager. Common Risk Alleles for Inflammatory Diseases Are Targets of Recent Positive Selection. The American Journal of Human Genetics, 2013; DOI: 10.1016/j.ajhg.2013.03.001

Cite This Page:

Brigham and Women's Hospital. "Did evolution give us inflammatory disease?." ScienceDaily. ScienceDaily, 22 March 2013. <www.sciencedaily.com/releases/2013/03/130322104255.htm>.
Brigham and Women's Hospital. (2013, March 22). Did evolution give us inflammatory disease?. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2013/03/130322104255.htm
Brigham and Women's Hospital. "Did evolution give us inflammatory disease?." ScienceDaily. www.sciencedaily.com/releases/2013/03/130322104255.htm (accessed October 21, 2014).

Share This



More Health & Medicine News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How Nigeria Beat Its Ebola Outbreak

How Nigeria Beat Its Ebola Outbreak

Newsy (Oct. 20, 2014) The World Health Organization has declared Nigeria free of Ebola. Health experts credit a bit of luck and the government's initial response. Video provided by Newsy
Powered by NewsLook.com
Another Study Suggests Viagra Is Good For The Heart

Another Study Suggests Viagra Is Good For The Heart

Newsy (Oct. 20, 2014) An ingredient in erectile-dysfunction medications such as Viagra could improve heart function. Perhaps not surprising, given Viagra's history. Video provided by Newsy
Powered by NewsLook.com
Ebola Worries End for Dozens on U.S. Watch Lists

Ebola Worries End for Dozens on U.S. Watch Lists

Reuters - US Online Video (Oct. 20, 2014) Forty-three people who had contact with Thomas Eric Duncan, the first person diagnosed with Ebola in the U.S., were cleared overnight of twice-daily monitoring after 21 days of showing no symptoms. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
CDC Calls for New Ebola Safety Guidelines

CDC Calls for New Ebola Safety Guidelines

AP (Oct. 20, 2014) Centers for Disease Control and Prevention Director Dr. Tom Frieden laid out new guidelines for health care workers when dealing with the deadly Ebola virus including new precautions when taking off personal protective equipment. (Oct. 20) 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:

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