Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New Gene Variants Present Opportunities in Nutrigenomics

16.12.2008
A new study uncovers 11 gene variants associated with three blood lipids measured to determine cardiovascular disease risk: low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) and triglycerides.

The discovery opens up new opportunities for nutrigenomics researchers looking for links between diet and genetics that will optimize health and lower chronic disease risk.

“Practically all genes related to lipid levels in the bloodstream respond to changes in the diet,” says Jose M. Ordovas, PhD, one of five senior authors of the study and director of the Nutrition and Genomics Laboratory at the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University (USDA HNRCA).

“With this new knowledge, we are closer to identifying precise dietary recommendations for people at risk for cardiovascular disease. For instance, carriers of a certain variant gene could reduce their risk of disease with a low-cholesterol diet, carriers of another variant gene may benefit from the Mediterranean diet, while a high-fiber diet may be the healthiest option for carriers of yet another variant gene.”

In addition to the 11 new genes, the authors’ findings strengthen the association of 19 previously identified genes with LDL and HDL cholesterol and triglycerides. Ordovas collaborated with 60 authors, led by corresponding author Sekar Kathiresan, MD, of Massachusetts General Hospital, for the study published December 7 online in Nature Genetics December 7. The study is a meta-analysis of over 20,000 subjects in genome-wide association studies of humans in the United States and Europe with The Framingham Heart Study accounting for the largest number of samples.

“Having identified a total of 30 gene variants is a landmark in lipid research,” says Ordovas, also a professor at the Friedman School of Nutrition and Science Policy at Tufts and Tufts University School of Medicine “It suggests people can have multiple variant genes contributing to dyslipidemia, a combination of spiked LDL and triglyceride levels and extremely low HDL-cholesterol signaling cardiovascular disease risk.

“It is possible there are even more variant genes contributing to dyslipidemia, but even larger studies and more complete genomic characterization based on sequencing are necessary to provide a more complete picture, including interactions with dietary components” Ordovas adds.

Ordovas received funding from the National Heart, Lung and Blood Institute and the USDA Agricultural Research Service (ARS).

Kathiresan, S. et al. Nature Genetics. Dec. 7, 2008 (online)."Common variants at 30 loci contribute to polygenic dyslipidemia."

About Tufts University School of Nutrition

The Gerald J. and Dorothy R. Friedman School of Nutrition Science and Policy at Tufts University is the only independent school of nutrition in the United States. The school's eight centers, which focus on questions relating to famine, hunger, poverty, and communications, are renowned for the application of scientific research to national and international policy. For two decades, the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University has studied the relationship between good nutrition and good health in aging populations. Tufts research scientists work with federal agencies to establish the USDA Dietary Guidelines, the Dietary Reference Intakes, and other significant public policies.

Andrea Grossman | Newswise Science News
Further information:
http://www.tufts.edu

More articles from Life Sciences:

nachricht Climate Impact Research in Hannover: Small Plants against Large Waves
17.08.2018 | Leibniz Universität Hannover

nachricht First transcription atlas of all wheat genes expands prospects for research and cultivation
17.08.2018 | Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Color effects from transparent 3D-printed nanostructures

New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference

Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

LaserForum 2018 deals with 3D production of components

17.08.2018 | Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

 
Latest News

Smallest transistor worldwide switches current with a single atom in solid electrolyte

17.08.2018 | Physics and Astronomy

Robots as Tools and Partners in Rehabilitation

17.08.2018 | Information Technology

Climate Impact Research in Hannover: Small Plants against Large Waves

17.08.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>