Navigation Links
Drug Treatment Slows Macular Vision Loss in Diabetics

A drug commonly used to slow the loss of central vision has shown promise in stemming a common precursor of blindness in diabetics, which involves the same central// light-sensitive area of retina, Johns Hopkins Wilmer Eye Institute scientists report.

Encouraged by the effect of ranibuzumab in people with macular degeneration, the Hopkins researchers injected the drug into the eyes of 10 people losing their sight from macular edema, one of many complications of diabetes and a first stage of diabetic retinopathy.

Over the course of several months of therapy, every patient in the preliminary Hopkins study could read at least two more lines on the standard eye chart, the researchers said. Moreover, the thickness of the patients’ maculae, the central part of the retina responsible for seeing fine details, decreased an average of 85 percent. The American Journal of Ophthalmology published the team’s findings in their December issue.

“The results are impressive,” says Quan Dong Nguyen, M.D., M.Sc., an assistant professor of ophthalmology at the Wilmer Eye Institute at Johns Hopkins, “although we will not know until we begin a larger clinical trial what the long-term benefits of the drug might be.”

The Hopkins group believes that ranibuzumab interferes with a protein that spurs the growth of unwanted blood vessels in the back of the eye. Vascular endothelial growth factor, or VEGF, is released when the oxygen supply in the eye is restricted by blood vessel damage related to diabetes.

In a self-preserving attempt to acquire more oxygen, the VEGF signals for the creation of new blood vessels, which almost always damage, rather than improve, vision by blocking light’s entry onto the retina.

“We’ve suspected for awhile that ranibuzumab’s ability to shut down VEGF’s signaling would do the trick because it’s highly likely that VEGF is the culprit when it comes to diabetic macular edema,” says Nguyen.

More than 4 million diabetics in the United States have diabetic retinopathy and, according to the National Eye Institute, one in 12 of those experience at least some vision loss.

Macular edema, a first stage of retinopathy, occurs when, over time, excess uncontrolled blood sugar damages the tiny blood vessels in the eye, causing fluid and fat to leak onto the retina at the back of the eye. The swelling interferes with focus and blurs vision. Making matters worse, a lack of oxygen often then triggers VEGF’s production cycle.

All 10 subjects in the study had some vision loss at the start of the clinical trial, in which ranibuzumab was administered at the one, two, four and six month marks. The thickness of each patient’s macula was also measured at each point in the study using an advanced digital imaging technique.

“Within a week, several patients experienced dramatic reductions in the thickness of their maculas, and there were further improvements with each injection,” says Peter Campochiaro, M.D., the Dolores and George Eccles Professor of Ophthalmology at The Johns Hopkins University School of Medicine, who is also an investigator in the study.

SourceNewswise
SRM
'"/>




Related medicine news :

1. Advances in Treatment of Cataracts
2. Recommendations for Treatment of Blood Pressue
3. Treatment for Menieres disease
4. Treatment for pre-menstrual syndrome is ineffective
5. Better Treatment for obesity
6. Gene Treatment for Heart Disease
7. More People Seeking Treatment for Depression
8. Focused Treatment For Childhood Cancer
9. Inadequate Drug Treatment For Youth
10. FDA Approves New surgery Treatment for Farsightedness
11. Treatment of antibiotics ineffectual in bronchitis
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/3/2016)... , ... May 03, 2016 , ... ... announced that it has been honored as one of the nation’s most accomplished ... InformationWeek Elite 100. Horizon received the recognition for technology achievements that have enabled ...
(Date:5/3/2016)... ... May 03, 2016 , ... BioPlus Specialty Pharmacy ... at the 2016 Asembia Specialty Pharmacy Summit held May 2-6, 2016 at the ... health care conference for the specialty pharmacy industry, with thousands of pharmacy providers, ...
(Date:5/3/2016)... ... May 03, 2016 , ... Empyrean Benefit Solutions, Inc., the ... service center in La Vergne, Tennessee, near Nashville. The new center will complement ... Empyrean client services. , “Our Nashville-area center allows us to achieve several goals,” ...
(Date:5/3/2016)... (PRWEB) , ... May 03, 2016 , ... Park Cities ... live in or adjacent to the 75204, 75205, 75206, 75209, 75219, 75220, 75225, 75229, ... Greenway Parks, Bluffview, Midway Hollow, North Dallas, Plano, Preston Hollow and Park Cities areas ...
(Date:5/3/2016)... , ... May 03, 2016 , ... ... one of Canada’s top Information and Communication Technology (ICT) companies in the annual ... Multinational ICT companies operating in Canada, as ranked by revenue. , “We ...
Breaking Medicine News(10 mins):
(Date:5/2/2016)... LAWRENCEVILLE, N.J. , May 2, 2016 /PRNewswire/ ... drug development company, today announced data from the ... dose escalating clinical trial (the OVATION Study) combining ... of care for the treatment of newly-diagnosed patients ... chemotherapy followed by interval debulking surgery.  In the ...
(Date:4/29/2016)... , April 29, 2016 ... H1 2016" market research report that provides an ... comparative analysis at various stages, therapeutics assessment by ... administration (RoA) and molecule type, along with latest ... also reviews key players involved in the therapeutic ...
(Date:4/29/2016)... Glycotope GmbH, a clinical-stage immuno-oncology ... appointment of Dr. Alfredo Zurlo as Chief ... with many years clinical experience and a proven track ... role was at Mologen AG where he was Chief ... Dr. Zurlo held various positions at F Hoffmann La ...
Breaking Medicine Technology: