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Last updated on April 19, 2014 at 18:42 EDT

Latest AIDS dementia complex Stories

2009-09-08 12:11:50

Finnish and Canadian scientists say they've found brain cells called astrocytes play a major role in generating functional magnetic resonance imaging signals. Professor Kai Kaila of the University of Helsinki and the Academy of Finland's Neuroscience Research Program, along with Professor Brian MacVicar of the University of British Columbia, found functional MRI imaging does not directly measure nerve cell activity. Instead, it actually measures changes in cerebrovascular circulation. Helping...

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2009-08-15 08:47:46

A new study suggests that older adults in developing countries twho regularly eat fish seem to have lower risks of dementia. Researchers found that nearly 15,000 adults that live in China, India or one of five Latin American countries generally had the odds of dementia declining as fish consumption rose. For every increase in reported fish intakes with participants, the prevalence of dementia dropped by 19 percent. The results mirror evidence from some studies done in developed nations....

2009-08-14 16:56:52

Elderly people who spend less time socializing experience more rapid decline in motor function, U.S. researchers say. It's not just running around the track that is good for you, Dr. Aron Buchman of Rush University Medical Center said in a statement. Our findings suggest that engaging in social activities may also be protective against loss of motor abilities. The researchers recruited 906 older individuals from retirement facilities, subsidized housing complexes, church groups and social...

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2009-07-15 12:10:00

A large study of patients with mild cognitive impairment revealed that results from cognitive tests and brain scans can work as an early warning system for the subsequent development of Alzheimer's disease.The research found that among 85 participants in the study with mild cognitive impairment, those with low scores on a memory recall test and low glucose metabolism in particular brain regions, as detected through positron emission tomography (PET), had a 15-fold greater risk of developing...

2009-06-15 12:50:08

The idea that anti-inflammatory drugs might protect people struggling with dementia from Alzheimer's disease has received a blow with the online release of a study of human brain tissue in Acta Neuropathologica.Researchers with the McKnight Brain Institute of the University of Florida, in collaboration with scientists at the University of Frankfurt, Germany, discovered that inflammation of microglia -- an abundant cell type that plays an important supporting role in the brain -- does not...

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2009-05-18 06:55:00

New research suggests that stimulating the brain by working longer into senior years could possibly prevent Alzheimer's disease, BBC News reported.  In a study comprised of 1,320 dementia patients, 382 of which were men, findings revealed that the men that continued to work late in life were able to maintain keenness of the brain enough to ward off dementia.  The Institute of Psychiatry at King's College London conducted the study and published its findings in the International...

2009-04-07 10:36:27

Damage to patients' immune systems is happening sooner now than it did at the beginning of the HIV epidemic, suggesting the virus has become more virulent, according to a new study in the May 1, 2009 issue of Clinical Infectious Diseases, now available online. Conventional wisdom says several years will pass between HIV infection and the need for antiretroviral therapy. However, clinicians have observed that patients are entering HIV care with lower initial CD4 cell counts than in previous...

2009-04-02 13:50:10

A new study in the April 3rd issue of the journal Cell, a Cell Press publication, helps to explain why people who carry mutations in a gene known as Nurr1 develop a rare, inherited form of Parkinson's disease, the most prevalent movement disorder in people over the age of 65.They have found evidence that the gene normally acts to suppress an inflammatory response and, in turn, the production of neurotoxins in the brain. Those neurotoxins can otherwise spawn the damage to dopaminergic neurons...

2009-03-23 08:47:12

New research shows shrinking in the hippocampus of the brain could be a precursor to dementia. Researchers performed MRI scans on 142 patients -- 64 with Alzheimer's disease, 44 with mild cognitive impairment and 34 with no memory or thinking problems. They found that patients who did not have dementia at the beginning of the study, but had smaller hippocampal volumes and higher rates of shrinkage were two to four times more likely to develop dementia than those with larger volumes and slower...

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2009-01-20 08:42:14

Running errands, attending parties, and cheering on your favorite sports team, may actually help protect you from dementia, according to researchers. People who kept both a busy social schedule and were not easily stressed had a 50 percent lower risk of developing dementia compared with men and women who were isolated and prone to distress, said researchers. The findings were reported in the journal Neurology. "In the past, studies have shown that chronic distress can affect parts of the...