EueekAlert
Tien Yin Wong, M.D., Ph.D.
Older adults with low scores on tests of cognitive function, including thinking, learning and memory appear more likely to have the early stages of the eye disease age-related macular degeneration, according to a report in the May issue of Archives of Ophthalmology, one of the JAMA/Archives journals.
Age-related macular degeneration (AMD)—the leading cause of visual impairment in industrialized nations—has long been thought to share a common pathway with Alzheimer's disease, according to background information in the article. First, both conditions involve similar changes in the brain and eye, including the buildup of protein fragments known as beta-amyloid. "Second, clinical studies suggest that AMD and Alzheimer's disease share similar vascular risk factors, such as hypertension [high blood pressure] and cigarette smoking," the authors write. "Both....read the whole article
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Showing posts with label age-related macular degeneration. Show all posts
Showing posts with label age-related macular degeneration. Show all posts
Sunday, May 17, 2009
Saturday, May 16, 2009
Eye Disease, Cognitive Decline Linked in Study
ajc
HealthDay News) -- Seniors who perform poorly on tests of language, memory and concentration are more likely to be suffering from the early stages of age-related macular degeneration, a major cause of vision loss, a new study suggests.
The finding stems from a look at the association between cognitive function decline and the onset of age-related macular degeneration (AMD) among approximately 2,000 Australian seniors between the ages of 69 and 97.
"We found that those who have memory impairment were more likely to have early stages of macular degeneration independent of the effects of age, education and vascular risk factors," said study co-author Dr. Tien Yin Wong, a professor in the department of ophthalmology within the Centre for Eye Research Australia at the University of Melbourne.
Wong and his colleagues published the findings in the May issue of the Archives of Ophthalmology.
Age-related macular degeneration is the leading cause of vision loss among the elderly. The researchers note that prior research has suggested that Alzheimer's disease and AMD share similar developmental pathways in terms of protein build-up and brain and eye changes.
The authors' current observations are drawn from an analysis of retinal photographs taken of study participants (more than 80 percent white and all enrolled in a larger cardiovascular health study), from which a diagnosis of early-stage AMD was made.
Those diagnoses were lined up against results of cognitive function and neuropsychological tests designed to assess each subject's abilities in terms of concentration, language, memory and orientation skills. Most were also tested for dementia and cardiovascular risk factors.
The researchers determined that nearly 16 percent of the participants had early AMD, while 135 and 86 patients were diagnosed with dementia or Alzheimer's disease, respectively.
Having dementia and/or Alzheimer's was not linked to an increased likelihood for early AMD. However, the authors found that an AMD diagnosis was associated with having poorer scores on cognitive testing -- a trend deemed small but "significant."
"Our study suggests that....read the whole article
For a great resource for those with dementia, caregivers and healthcare professinals, click here
For information on being the best caregiver you can be, click here
For more interesting dementia articles and activities, click here
HealthDay News) -- Seniors who perform poorly on tests of language, memory and concentration are more likely to be suffering from the early stages of age-related macular degeneration, a major cause of vision loss, a new study suggests.
The finding stems from a look at the association between cognitive function decline and the onset of age-related macular degeneration (AMD) among approximately 2,000 Australian seniors between the ages of 69 and 97.
"We found that those who have memory impairment were more likely to have early stages of macular degeneration independent of the effects of age, education and vascular risk factors," said study co-author Dr. Tien Yin Wong, a professor in the department of ophthalmology within the Centre for Eye Research Australia at the University of Melbourne.
Wong and his colleagues published the findings in the May issue of the Archives of Ophthalmology.
Age-related macular degeneration is the leading cause of vision loss among the elderly. The researchers note that prior research has suggested that Alzheimer's disease and AMD share similar developmental pathways in terms of protein build-up and brain and eye changes.
The authors' current observations are drawn from an analysis of retinal photographs taken of study participants (more than 80 percent white and all enrolled in a larger cardiovascular health study), from which a diagnosis of early-stage AMD was made.
Those diagnoses were lined up against results of cognitive function and neuropsychological tests designed to assess each subject's abilities in terms of concentration, language, memory and orientation skills. Most were also tested for dementia and cardiovascular risk factors.
The researchers determined that nearly 16 percent of the participants had early AMD, while 135 and 86 patients were diagnosed with dementia or Alzheimer's disease, respectively.
Having dementia and/or Alzheimer's was not linked to an increased likelihood for early AMD. However, the authors found that an AMD diagnosis was associated with having poorer scores on cognitive testing -- a trend deemed small but "significant."
"Our study suggests that....read the whole article
For a great resource for those with dementia, caregivers and healthcare professinals, click here
For information on being the best caregiver you can be, click here
For more interesting dementia articles and activities, click here
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