Navigation Links
Tufts Medical Center Researchers Create a New Predictive Model for Age-related Macular Degeneration (AMD)
Date:4/23/2009

BOSTON, April 23 /PRNewswire-USNewswire/ -- Researchers at Tufts Medical Center have created a formula for predicting how likely it is that individuals with certain genetic profiles and lifestyle behaviors will develop advanced Age-related Macular Degeneration (AMD), a potentially blinding condition that currently affects an estimated two million older Americans and is increasing dramatically as the population ages.

The study, led by Johanna M. Seddon, MD, ScM, Professor of Ophthalmology at Tufts University School of Medicine and Director of the Ophthalmic Epidemiology and Genetics Service at Tufts Medical Center, evaluated six genotypes that either increase or decrease risk for AMD. In addition to age, sex, and education, she also incorporated smoking status and higher body mass index (BMI) which increase risk of AMD, and supplementation with a high-dose formulation of antioxidants and zinc which delays progression of the disease. Using their new algorithm, Dr. Seddon and her colleagues determined that several genotypes plus the lifestyle factors can predict progression to the advanced forms of AMD with a certainty as high as 83%. The paper, "Prediction model for prevalence and incidence of advanced age-related macular degeneration based on genetic, demographic, and environmental variables" was published in the May issue of the journal Investigative Ophthalmology & Visual Science.

Their research also shows that although AMD has a strong genetic component, healthy behaviors can modify your genetic susceptibility. For example, among individuals with one genotype, the homozygous C3 risk genotype, the likelihood of progression to the advanced form of AMD increased from about three-fold for nonsmokers to nearly 10-fold for smokers.

"Our algorithm could help with the selection of study participants for treatment trials and could one day enable doctors to choose the most efficacious treatment for individual patients," Dr. Seddon said. "It also gives any older person concerned about AMD, or any patient with early stages or a family history of AMD, even more incentive to avoid risk factors such as smoking and excessive weight."

The study included 1,446 individuals from the Age-Related Eye Disease Study who had 6.3 years of follow-up, of which 279 progressed to the advanced stages of AMD.

About Tufts Medical Center

Tufts Medical Center is a not-for-profit, 439-bed academic medical center that is home to both a full-service hospital for adults and Floating Hospital for Children.


'/>"/>
SOURCE Tufts Medical Center
Copyright©2009 PR Newswire.
All rights reserved

Related medicine technology :

1. Raptor Pharmaceuticals Appoints Dr. Patrice P. Rioux as Chief Medical Officer
2. PEAK Surgical Announces Completion of First PRECISE Clinical Study, Receipt of Medical Design Excellence Award for PEAK(R) Surgery System and Achievement of Over 1,000 Surgeries Using PEAK PlasmaBlade(TM)
3. Torax Medical Launches Pivotal Clinical Study of New Acid Reflux Treatment
4. B. Braun Medical Inc. to Demonstrate Infusion Systems Technologies at HIMSS 2009 Interoperability Showcase
5. U.S. Naval Medical Research Center Resubmits IND Application for Proposed RESUS Clinical Trial in Trauma Patients in the Out-of-Hospital Setting
6. Walter Reed Army Medical Center offers HIFU for Qualifying Men with Locally Recurrent Prostate Cancer in a Phase III Clinical Trial
7. Varian Medical Systems to Exhibit Cancer Treatment and X-ray Imaging Technologies at China Med Exhibition
8. YM BIOSCIENCES ANNOUNCES NIMOTUZUMAB PRESENTATIONS TO BE MADE AT THE 100TH ANNUAL MEETING OF THE AMERICAN ASSOCIATION FOR CANCER RESEARCH AND EUROPEAN SOCIETY FOR MEDICAL ONCOLOGY
9. Premier Research Expands its Medical Device Operations to the United States
10. Terumo Heart, Inc. Reports Clinical Progress in the DuraHeart(TM) U.S. Pivotal Trial as NewYork-Presbyterian Hospital/Columbia University Medical Center Implants First Patient
11. Dermatologists Caution That Severe Cases of Psoriasis Can Be Associated With Other Serious Medical Conditions
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/23/2016)... , June 23, 2016 Roche (SIX: ... 510(k) clearance for its Elecsys BRAHMS PCT (procalcitonin) assay ... sepsis or septic shock. With this clearance, Roche is ... a fully integrated solution for sepsis risk assessment and ... with bacterial infection and PCT levels in blood can ...
(Date:6/23/2016)... , June 23, 2016 Bracket , ... launch its next generation clinical outcomes platform, Bracket eCOA (SM) ... held on June 26 – 30, 2016 in ... first electronic Clinical Outcome Assessment product of its kind to ... #715. Bracket eCOA 6.0 is a flexible platform ...
(Date:6/23/2016)... LONDON , June 23, 2016 ... environments  Oticon , industry leaders in ... the launch of Oticon Opn ™, the world,s ... world of possibilities for IoT devices.      ... Opn, Oticon introduces a number of ,world firsts,: ...
Breaking Medicine Technology:
(Date:6/27/2016)... ... ... TherapySites, the leading website and online marketing ... Association. This new relationship allows TherapySites to continue to extend their online ... and promotional offers. , "TCA is extremely excited about this new partnership, as ...
(Date:6/27/2016)... ... June 27, 2016 , ... TopConsumerReviews.com recently awarded their highest five-star rating to ... of individuals in the United States and Canada wear eyeglasses. Once considered to be ... vision and make a fashion statement. Even celebrities use glasses as a way of ...
(Date:6/26/2016)... ... ... Pixel Film Studios Released ProSlice Levels, a Media Slicing Effect Plugin ... whole new perspective by using the title layers in ProSlice Levels to split-up ... Levels contains over 30 Different presets to choose from. FCPX users can ...
(Date:6/26/2016)... ... June 26, 2016 , ... Many women are ... with endometriosis. These women need a treatment plan to not only alleviate symptoms ... can help for preservation of fertility and ultimately achieving a pregnancy. The specialists ...
(Date:6/25/2016)... ... ... temporary closing of Bruton Memorial Library on June 21 due to a possible lice infestation, ... aspect of head lice: the parasite’s ability to live away from a human host, and ... necessary one in the event that lice have simply gotten out of control. , As ...
Breaking Medicine News(10 mins):