Corporate Banner
Satellite Banner
Technology
Networks
Scientific Communities
 
Become a Member | Sign in
Home>News>This Article
  News
Return

The Genetics of Age-Related Macular Degeneration

Published: Friday, March 15, 2013
Last Updated: Friday, March 15, 2013
Bookmark and Share
The study appeared online on March 3, 2013, in Nature Genetics.

An international group of researchers discovered 7 regions of the human genome associated with an increased risk of age-related macular degeneration (AMD), a leading cause of blindness.

The group also confirmed 12 regions identified in previous studies. The findings may eventually lead to new treatment and prevention approaches to AMD.

AMD gradually destroys sharp, central vision as a person ages. The disease affects the macula, a region of the retina responsible for central vision. We rely on the macula for tasks that require sharp vision, such as reading, driving and recognizing faces.

As AMD progresses, these tasks become more difficult. Some kinds of AMD are treatable if detected early, but no cure exists. An estimated 2 million Americans have AMD.

Scientists have found that age, diet and smoking influence the risk of developing AMD. Genetics also plays a strong role. AMD often runs in families and is more common among certain ethnicities, such as people of Asian or European descent.

Genome-wide association studies (GWAS) have previously uncovered genetic factors linked to AMD risk. These studies involve scanning the entire human genome for genetic differences between people with AMD and matched controls. The larger the GWAS, the greater its ability to uncover relevant variations.

The new study was carried out by the AMD Gene Consortium, a network of international investigators supported by NIH’s National Eye Institute (NEI). It represents the most comprehensive analysis of genetic variations associated with AMD to date.

The researchers analyzed data from more than 17,100 people with the most advanced and severe forms of AMD, and more than 60,000 people without AMD.

The scientists identified 7 new genetic regions, or loci, associated with AMD. As with the 12 found in previous studies, these 7 are scattered throughout the genome on different chromosomes.

The 19 loci together implicate a variety of biological functions, including regulation of the immune system, maintenance of cellular structure, the growth and permeability of blood vessels, lipid metabolism and atherosclerosis.

“A large number of samples was needed to detect additional genetic variants that have small but significant influences on a person’s disease risk,” says NEI’s Dr. Hemin Chin, who assembled the consortium and helped coordinate the study.

Dr. Chin continued, “By cataloging genetic variations associated with AMD, scientists are better equipped to target corresponding biological pathways and study how they might interact and change with age or other factors, such as smoking.”

The 19 genomic regions identified by this work will help guide scientists searching for the underlying causes of AMD.

Eventually, these discoveries may help inform the development of new diagnostic and treatment strategies.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,000+ scientific posters on ePosters
  • More Than 4,400+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Finding Factors That Protect Against Flu
A clinical trial examining the body’s response to seasonal flu suggests new approaches for evaluating the effectiveness of seasonal flu vaccines.
Wednesday, April 27, 2016
Factors Influencing Influenza Vaccine Effectiveness Uncovered
The long-held approach to predicting seasonal influenza vaccine effectiveness may need to be revisited, new research suggests.
Thursday, April 21, 2016
Study Finds Factors That May Influence Influenza Vaccine Effectiveness
Researchers at NIH have suggested that the long-held approach to predicting seasonal influenza vaccine effectiveness may need to be revisited.
Wednesday, April 20, 2016
Serotonin Transporter Structure Revealed
Researchers determined the 3-D structure of the serotonin transporter and visualized how two common antidepressants interact with the protein.
Wednesday, April 20, 2016
Improving Flu Vaccine Effectiveness
NIH study finds factors that may influence influenza vaccine effectiveness.
Wednesday, April 20, 2016
Submissions Open for the Cancer Moonshot Program
NCI opens online platform to submit ideas about research for Cancer Moonshot.
Tuesday, April 19, 2016
Migration Creates Cancer Cell Vulnerabilities
Scientists found that migration can damage cancer cells’ nuclei and DNA, requiring repairs for their survival. The results may open new avenues for targeting metastatic cancer.
Wednesday, April 13, 2016
NIH Sequences Genome of a Fungus
Researchers at the Institute have sequenced genome of human, mouse and rat Pneumocystis that cause life-threatening Pneumonia in immunosuppressed hosts.
Tuesday, April 12, 2016
NIH Awards Grants to Explore Vaccine Adjuvants
NIH awards six grants to explore how combination adjuvants improve vaccines.
Wednesday, April 06, 2016
Children With Cushing Syndrome May Have Higher Suicide Risk
Researchers at NIH have found that depression, anxiety and suicidal thoughts increase after treatment.
Wednesday, March 30, 2016
Experimental Vaccine Protects Against Dengue Virus
An experimental dengue vaccine protected all the volunteers who received it from infection with a live dengue virus.
Wednesday, March 30, 2016
Couples’ Pre-Pregnancy Caffeine Consumption Linked to Miscarriage Risk
Researchers at NIH have found daily multivitamin before and after conception greatly reduces miscarriage risk.
Friday, March 25, 2016
Study Finds Mindfulness Meditation Offers Relief For Low-Back Pain
Researchers at NIH have found that the MBSR and CBT may prove more effective than usual treatment in alleviating chronic low-back pain.
Wednesday, March 23, 2016
3-D Technology Enriches Human Nerve Cells For Transplant to Brain
This platform is expected to make transplantation of neurons a viable treatment for a broad range of human neurodegenerative disorders.
Friday, March 18, 2016
Scientists Discover Non-Opioid Pain Pathway in the Brain
Researchers at NIH have discovered evidence for the existence of a non-opioid process in the brain to reduce pain through mindfulness meditation.
Friday, March 18, 2016
Scientific News
Computational Model Finds New Protein-Protein Interactions
Researchers at University of Pittsburgh have discovered 500 new protein-protein interactions (PPIs) associated with genes linked to schizophrenia.
Experimental Drug Cancels Effect from Key Intellectual Disability Gene
A University of Wisconsin—Madison researcher who studies the most common genetic intellectual disability has used an experimental drug to reverse — in mice — damage from the mutation that causes the syndrome.
MicroRNA Pathway Could Lead to New Avenues for Leukemia Treatment
Cancer researchers at the University of Cincinnati have found a particular signaling route in microRNA (miR-22) that could lead to targets for acute myeloid leukemia, the most common type of fast-growing cancer of the blood and bone marrow.
Bioreactors Ready for the Big Time
Bioreactors are passive filtration systems that can reduce nitrate losses from farm fields.
Analysis of Dog Genome will Provide Insight into Human Disease
An important model in studying human disease, the non-coding RNA of the canine genome is an essential starting point for evolutionary and biomedical studies – according to a new study led by The Genome Analysis Centre (TGAC).
‘Mini-Brains’ to Study Zika
Novel tool expected to speed research on brain and drug development.
Finding Factors That Protect Against Flu
A clinical trial examining the body’s response to seasonal flu suggests new approaches for evaluating the effectiveness of seasonal flu vaccines.
New Insights into Gene Regulation
Researchers have solved the three-dimensional structure of a gene repression complex that is known to play a role in cancer.
Controlling RNA in Living Cells
Modular, programmable proteins can be used to track or manipulate gene expression.
Common Class of Cancer Drugs May Not Lead to Cognitive Decline
UCLA study refutes 2015 research suggesting anthracyclines could cause memory loss, other impairments.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,000+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,400+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!