Featured Research

from universities, journals, and other organizations

Lifestyle Influences Metabolism via DNA Methylation

Date:
September 20, 2013
Source:
Helmholtz Zentrum Muenchen - German Research Centre for Environmental Health
Summary:
An unhealthy lifestyle leaves traces in the DNA. These may have specific effects on metabolism, causing organ damage or disease. Scientists have now identified 28 DNA alterations associated with metabolic traits. This is a world-first epigenome-wide association study of modified genes and metabolites.

An unhealthy lifestyle leaves traces in the DNA. These may have specific effects on metabolism, causing organ damage or disease. Scientists of Helmholtz Zentrum Mόnchen have now identified 28 DNA alterations associated with metabolic traits. This world-first epigenome-wide association study (EWAS) of modified genes and metabolites has been now published in the journal Human Molecular Genetics.

In the course of life, aging processes, environmental influences and lifestyle factors such as smoking or diet induce biochemical alterations to the DNA. Frequently, these lead to DNA methylation, a process in which methyl groups are added to particular DNA segments, without changing the DNA sequence. Such processes can influence gene function and are known as epigenetics. Scientists of the Institute of Genetic Epidemiology (IGE) and the Research Unit Molecular Epidemiology (AME) at Helmholtz Zentrum Mόnchen are seeking to determine what association exists between these epigenetic processes and the health consequences, in particular for the metabolism.

To this end, the team led by Christian Gieger (IGE) and Melanie Waldenberger (AME), in in collaboration with Karsten Suhre of Weill Cornell Medical College in Qatar analyzed blood samples from more than 1800 participants of the KORA study *. In doing so, they analyzed more than 457,000 loci in the DNA as to biochemical alterations and compared them with the concentrations of 649 different metabolites. The analysis showed that the methylation of 28 DNA segments changed a number of important metabolic processes.

In the relevant DNA regions there were also already known disease-related genes: for example, the TXNIP gene that regulates glucose metabolism and is associated with the development of diabetes mellitus. Appropriately, with the methylated TXNIP there were altered concentrations of metabolites from the lipid and glucose metabolism. Also genes that are known to be biochemically altered due to smoking affect different metabolic activities, and specifically those with corresponding biological functions.

"This study gives us new insights into how lifestyle factors can influence metabolism via the resulting alterations in the DNA," said Gieger, research group leader at the IGE. "We can now use these results to develop new diagnostic and therapeutic approaches for lifestyle-related diseases such as diabetes."


Story Source:

The above story is based on materials provided by Helmholtz Zentrum Muenchen - German Research Centre for Environmental Health. Note: Materials may be edited for content and length.


Journal Reference:

  1. A.-K. Petersen, S. Zeilinger, G. Kastenmuller, W. Romisch-Margl, M. Brugger, A. Peters, C. Meisinger, K. Strauch, C. Hengstenberg, P. Pagel, F. Huber, R. P. Mohney, H. Grallert, T. Illig, J. Adamski, M. Waldenberger, C. Gieger, K. Suhre. Epigenetics meets metabolomics: An epigenome-wide association study with blood serum metabolic traits. Human Molecular Genetics, 2013; DOI: 10.1093/hmg/ddt430

Cite This Page:

Helmholtz Zentrum Muenchen - German Research Centre for Environmental Health. "Lifestyle Influences Metabolism via DNA Methylation." ScienceDaily. ScienceDaily, 20 September 2013. <www.sciencedaily.com/releases/2013/09/130920094409.htm>.
Helmholtz Zentrum Muenchen - German Research Centre for Environmental Health. (2013, September 20). Lifestyle Influences Metabolism via DNA Methylation. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2013/09/130920094409.htm
Helmholtz Zentrum Muenchen - German Research Centre for Environmental Health. "Lifestyle Influences Metabolism via DNA Methylation." ScienceDaily. www.sciencedaily.com/releases/2013/09/130920094409.htm (accessed July 30, 2014).

Share This




More Health & Medicine News

Wednesday, July 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) — Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) — Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) — At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Xtreme Eating: Your Daily Caloric Intake All On One Plate

Xtreme Eating: Your Daily Caloric Intake All On One Plate

Newsy (July 30, 2014) — The Center for Science in the Public Interest released its 2014 list of single meals with whopping calorie counts. 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:
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