Navigation Links
Age-Related Macular Degeneration Doubles Heart Attack and Stroke Risk
Date:2/28/2008

Eye disease carries same risk as other circulatory problems, experts say.

THURSDAY, Feb. 28 (HealthDay News) -- People suffering from age-related macular degeneration (AMD) have twice the risk of dying from heart attack or stroke, Australian researchers report.

The degenerative eye disease is the most common cause of untreatable blindness among older adults in developed countries and affects the center of the retina at the back of the eye, which is essential for tasks such as reading and driving.

"We found a positive long-term link between AMD and subsequent cardiovascular and stroke mortality in a population of older Australians," said lead researcher Dr. Paul Mitchell, from the Centre for Vision Research in the Department of Ophthalmology at the University of Sydney. "This was particularly increased for late-blinding cases."

"Both ophthalmologists and general practitioners should be aware of this potential link and need to consider appropriate management of traditional vascular risk factors, such as smoking, blood pressure, blood lipids in their patients with AMD," Mitchell said.

In the study, Mitchell's team studied 3,654 people aged 49 years old and older. Five years later, 2,335 people were re-examined, and after 10 years, 1,952 were re-examined.

The report is published in the Feb. 28 online issue of the British Journal of Ophthalmology.

The researchers found that for people under 75, when the study began, early AMD was linked with a doubling of their risk of dying from heart attack or stroke over the next 10 years.

For those with late-stage AMD at the start of the study, their risk of dying from heart attack increased fivefold, and their risk of dying from stroke increased 10 times, Mitchell's team found.

"While AMD, particularly in its late stage, occurs in people of relatively older ages, it may be associated with an increased vascular risk," Mitchell said. "This could, in part, reflect shared risk factors such as smoking."

One expert noted that because AMD is a vascular problem, it is not surprising that it is associated with increased cardiovascular risk.

"Age-related macular degeneration and atherosclerotic vascular share common risk factors that include hypertension, hyperlipidemia and smoking," said Dr. Gregg C. Fonarow, a professor of cardiology at the University of California, Los Angeles.

In addition, systemic inflammation may increase the risk of AMD and atherosclerosis, Fonarow said.

"Just as having peripheral vascular disease is associated with an increased risk of cardiovascular disease through common risk factors, having AMD is associated with an increased risk of cardiovascular disease and mortality," Fonarow said.

"Patients and physicians should recognize that patients diagnosed with AMD are more likely to have underlying cardiovascular disease and subsequent events and take appropriate steps to lower that risk though lifestyle changes and cardiovascular protective therapies," Fonarow advised.

In another report in the same issue of the journal, British researchers concluded that genes that control the production of chemicals involved in inflammation may play a significant role in AMD.

One gene variation associated with the gene that produces an inflammatory chemical called interleukin 8, was significantly more common among people with AMD, the researchers found. This gene variant has been previously linked with inflammatory diseases and cancer.

If these findings hold up, the researchers think it could lead to genetic screening for AMD and possibly the development of medications to treat the disease.

More information

For more on AMD, visit the U.S. National Eye Institute.



SOURCES: Paul Mitchell, M.D., Centre for Vision Research, Department of Ophthalmology, University of Sydney, Australia; Gregg C. Fonarow, M.D., professor, cardiology, University of California, Los Angeles; Feb. 28, 2008, British Journal of Ophthalmology


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Mouse Model of Age-Related Macular Degeneration Developed
2. Activating protein enhances average lifespan, limits age-related disease in mice
3. Optherion Licenses Worldwide Rights to Develop Age-Related Macular Degeneration Diagnostics Based on Chromosome 10 Genetic Variations
4. Model to study age-related macular degeneration could pave way for better treatment
5. Verizon Awards $1.5 Million Grant to Expand American Foundation for the Blinds Web Site for Seniors With Age-Related Vision Loss
6. Off-Label Avastin Use for Wet Macular Degeneration
7. Study paves way for development of macular degeneration cures
8. Neurotech Announces Completion of Enrollment of its Phase II/III Retinitis Pigmentosa and Phase II Dry Age Related Macular Degeneration Clinical Studies
9. $37 million financing for company based on macular degeneration research
10. Abnormal glutamine repeats interfere with key transcription factor, leading to neurodegeneration
11. U-M scientists find new causes for neurodegeneration
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Age-Related Macular Degeneration Doubles Heart Attack and Stroke Risk
(Date:5/3/2016)... Monica, CA (PRWEB) , ... May 03, 2016 , ... ... the highest quality medical providers to build the leading network of doctors and therapists ... Eric Nepomnaschy, D.C., founder of the distinguished Bay Chiropractic and Rehabilitation in ...
(Date:5/3/2016)... ... May 03, 2016 , ... SELEX (systematic evolution ... from a random library of sequences depending on their attraction for a target ... SELEX selection is commonly performed using filters, panning, or affinity chromatography separations. However, ...
(Date:5/3/2016)... FL (PRWEB) , ... May 03, 2016 , ... ... leading innovative specialty pharmacies, will be represented at the 2016 Asembia Specialty ... Vegas. The Asembia Summit is the largest U.S. health care conference for the ...
(Date:5/3/2016)... ... May 03, 2016 , ... Boston Children’s Hospital today announced its ... situations or practice tricky or rare procedures in an environment that looks and feels ... is also available to inventors and “hackers” to develop and test new devices or ...
(Date:5/3/2016)... ... May 03, 2016 , ... ... announces Benefits Alliance Insurance Services as the latest addition to its elite stable ... comprised of Partners Wayne Blasman, David Styles, and Paul Vincent. The Firm is ...
Breaking Medicine News(10 mins):
(Date:4/29/2016)... April 29, 2016  In the next ten ... shift from systems dependent on CRTs monitors to those ... modality CRT Medical monitors and will automatically sync ... host of foreseeable benefits to this technological advancement, ... modalities have to be replaced in order to ...
(Date:4/29/2016)... 29, 2016 Glycotope GmbH, a ... announces the appointment of Dr. Alfredo Zurlo ... an oncologist with many years clinical experience and a ... His last role was at Mologen AG where he ... Board. Previously Dr. Zurlo held various positions at F ...
(Date:4/28/2016)... April 28, 2016 Research and ... Plastic Surgery Products Market 2016-2020" report to their ... , The global plastic surgery products market ... during the period 2016-2020. , ,The growing adoption of ... the growth of the market. Lasers are used to ...
Breaking Medicine Technology: