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Tag: "dementia" at biology news

Newly discovered antibody may be body's natural defense against Alzheimer's

...blood that may help to defend against this form of dementia as well as other neurodegenerative diseases. The...ariety of diseases, such as Parkinson's, Lewy body dementia and Prion disease (the human form of ‘Mad Cow' disease), to name a few," says Dr. Relkin. Since ...

Study finds mix of disease processes at work in brains of most people with dementia

...ndividual’s likelihood of having clinical signs of dementia increases with the number of different disease pro...howed that only 30 percent of people with signs of dementia had Alzheimer’s disease alone. By contrast, 42 percent of the people with dementia had Alzheimer’s d...

Experimental gene therapy 'abolishes' arthritis pain and lessens joint damage

...neurological conditions (e.g. Alzheimer’s disease, dementia and multiple sclerosis). While the just published study involved a technique that delivers gene therapy by injection at the joint, other promising approaches may involve interrupting crosstalk in the brain instead. Based on that promise, the Med...

Vaccine prevents prion disease in mice

...imals contaminated with prions. The disease causes dementia and abnormal limb movements. Prion is a protein that is also an infectious agent. The proteins are so similar to proteins found normally that the immune system does not fight them off. To develop a vaccine that would stimulate the mice's immune s...

Gene tests and brain imaging reveal early dementia

...ioration of mental function caused by some kind of dementia disease of the brain, of which Alzheimer's is the ...ry can be used to identify people who will develop dementia even before any clinical symptoms appear. "This is a crucial step towards the better diagnosis o...

Vasectomy may put men at risk for type of dementia

...rchers have discovered men with an unusual form of dementia have a higher rate of vasectomy than men the same age who are cognitively normal. The dementia is Primary Progressive Aphasia (PPA), a neurological disease in which people have trouble recalling ...

Canadian study shows bilingualism has protective effect in delaying onset of dementia by four years

...g use of two languages can help delay the onset of dementia symptoms by four years compared to people who are ...a general protective function against the onset of dementia symptoms. Now scientists with the Rotman Research Institute at the Baycrest Research Centre for ...

Boosting brain power -- with chocolate

...being used to treat vascular impairment, including dementia and strokes, and thus for maintaining cardiovascular health. The study also suggests that the cocoa flavanols found in chocolate could be useful in enhancing brain function for people fighting fatigue, sleep deprivation, and even the effects of ag...

HIV dementia alarmingly high in Africa

...s Hopkins suggests that the rate of HIV-associated dementia is so high in sub-Saharan Africa that HIV dementia along with Alzheimer’s disease and dementia from strokes may be among the most common forms of demen...

Molecular motors and brakes work together in cells

...port can go awry, with such diseases as cancer and dementia possibly resulting. "For the first time we have shown how MAPs and motors work together in a mechanistic way," says Tran. "This is important and it will make other people who study microtubules rethink how they study the cell." ...

Researchers seek to design first treatment for neuroAIDS

...tating effect on the brain known as HIV-associated dementia (HAD) or neuroAIDs. The current, standard combination of treatments has extended the lives of most U.S. AIDS patients, but has not cured neuroAIDS, despite early reports to the contrary. Antiviral combinations only slow the onset of HIV-related nerve...

Protein 'fingerprint' in spinal fluid could spot Alzheimer's disease

...ol cohort that included people with other forms of dementia as well as healthy individuals, looking for key di...er symptoms are reflective of Alzheimer's, another dementia or normal aging," Relkin said. "And in this study, we're offering a much more sophisticated and bett...

A natural chemical found in strawberries boosts memory in healthy mice

... ravaged by Alzheimer's disease and other forms of dementia continues to rise. "Since the development of a basic understanding of the biochemical pathways involved in memory formation, the holy grail of CNS research in the pharmaceutical industry is the identification of a safe, orally active drug that acti...

Stem cell activity deciphered in the aging brain

...nerative disorders, including Alzheimer's disease, dementia and depression, by stimulating the brain's ability to produce new nerve cells, said senior study investigator Ashok K. Shetty, Ph.D., professor of neurosurgery at Duke University Medical Center and medical research scientist at Durham VA Medical Cent...

Insulin receptor stops progression of Alzheimer's disease

...nd preserve learning and memory. "The trigger for dementia is the loss of insulin and IGF producing cells. The cells that need those growth factors subsequently die. This study shows you can block the second phase, which is responsible for dementia. This is great news for patients since you treat early stage...

Computer-based 'games' enhance mental function in patients with Alzheimer's

...exercises of mental stimulation commonly used with dementia patients. The findings, from the Fundació ACE, Ins...eferral clinic for community-dwelling persons with dementia in Barcelona, enrolled 46 people who were diagnosed with Alzheimer's disease. All were being treated...

Study offers window into human behavior, brain disease

...mon as Alzheimer's disease in patients who develop dementia before age 65. Because the cells arose only rece...nding provides new insight into how frontotemporal dementia erodes the brain at the cellular level," says the first author of the study, William Seeley, MD, UCS...

Smoking changes brain chemistry

...atric and mood disorders, including schizophrenia, dementia and bipolar disorder, as well as in cases of substance abuse, particularly alcohol dependence. Choline concentrations in the ACC were slightly lower in the smokers compared with the nonsmokers, and lower still in the female smokers compared with ...

Ultra low-dose estrogen shown safe for post-menopausal women

... estrogen was associated with an increased risk of dementia among women 65 and older, as well as with an increased risk of heart attack and stroke. "Those results raised a lot of doubts about whether women should be taking estrogen at all," Yaffe notes. The current study, published in the July 2006 issue...

Researchers find cause of frontotemporal dementia

...disease and Parkinson's disease. Frontotemporal dementia After Alzheimer's, frontotemporal dementia is the most prevalent form of dementia in patients younger than 65. FTD affects the frontal lobe, ca...

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