Researchers at the University of Wisconsin-Madison School of Medicine and Public Health are moving closer to a significant milepost in the battle against Alzheimer's disease: identifying the first signs of decline in the ...
Alzheimer's disease & dementia Feb 12, 2013 | not rated yet | 0 |
Defying the widely held belief that a specific gene is the biggest risk factor for Alzheimer's disease, two Cornell developmental psychologists and their colleagues report that people with that gene are more ...
Alzheimer's disease & dementia Feb 12, 2013 | 5 / 5 (1) | 0 |
Vascular brain injury from conditions such as high blood pressure and stroke are greater risk factors for cognitive impairment among non-demented older people than is the deposition of the amyloid plaques in the brain that ...
Neuroscience Feb 11, 2013 | not rated yet | 0 |
Surgery to bypass a blocked carotid artery in order to restore adequate blood flow to the brain does not improve cognitive performance in patients who've had a stroke or mini-stroke (TIA), according to research ...
Cardiology Feb 11, 2013 | not rated yet | 0
(Medical Xpress)—Research that aims to rid dementia sufferers' brains of toxins could lead to a new treatment that reverses the symptoms of Alzheimer's disease in the future.
Alzheimer's disease & dementia Feb 08, 2013 | not rated yet | 0
In certain dementias silent areas of the genetic code are translated into highly unusual proteins by mistake. An international team of scientists including researchers from the German Center for Neurodegenerative ...
Neuroscience Feb 07, 2013 | 5 / 5 (1) | 0 |
The number of people with Alzheimer's disease is expected to triple in the next 40 years, according to a new study published in the February 6, 2013, online issue of Neurology, the medical journal of the American Academy of Neu ...
Alzheimer's disease & dementia Feb 06, 2013 | not rated yet | 2
Natural chemicals found in green tea and red wine may disrupt a key step of the Alzheimer's disease pathway, according to new research from the University of Leeds.
Alzheimer's disease & dementia Feb 05, 2013 | 4.9 / 5 (11) | 0 |
(HealthDay)—Individuals with higher midlife cardiorespiratory fitness levels are significantly less likely to develop all-cause dementia later in life, according to research published in the Feb. 5 issue ...
Alzheimer's disease & dementia Feb 05, 2013 | not rated yet | 0
As research efforts go, this one is high risk. Which is to say, it could easily fail.
Medical research Feb 04, 2013 | 5 / 5 (3) | 1
(Medical Xpress)—A new drug to prevent the early stages of Alzheimer's disease could enter clinical trials in a few years' time according to scientists.
Alzheimer's disease & dementia Feb 01, 2013 | 4.7 / 5 (3) | 2
Dementia patients may benefit from a promising new treatment called Cerebrolysin, according to the results of a systematic review published in The Cochrane Library. The authors brought together the most up-to-date eviden ...
Alzheimer's disease & dementia Jan 30, 2013 | 5 / 5 (1) | 0
New Bournemouth University institute discovers new ways of making tourist attractions dementia-friendly.
Alzheimer's disease & dementia Jan 29, 2013 | not rated yet | 0
As part of the research project Trygge Spor, more than fifty dementia sufferers have been using GPS for periods varying from several weeks to up to a year. The results show that localisation technology helps ...
Alzheimer's disease & dementia Jan 29, 2013 | not rated yet | 0
(Medical Xpress)—Researchers from the Sorbonne in France have published the results of a study they carried out to determine if eating a Mediterranean diet helps prevent dementia as people age. They found, ...
Health Jan 29, 2013 | not rated yet | 0 |
Dementia (taken from Latin, originally meaning "madness", from de- "without" + ment, the root of mens "mind") is a serious loss of global cognitive ability in a previously unimpaired person, beyond what might be expected from normal aging. It may be static, the result of a unique global brain injury, or progressive, resulting in long-term decline due to damage or disease in the body. Although dementia is far more common in the geriatric population, it can occur before the age of 65, in which case it is termed "early onset dementia".
Dementia is not a single disease, but rather a non-specific illness syndrome (i.e., set of signs and symptoms) in which affected areas of cognition may be memory, attention, language, and problem solving. It is normally required to be present for at least 6 months to be diagnosed; cognitive dysfunction that has been seen only over shorter times, in particular less than weeks, must be termed delirium. In all types of general cognitive dysfunction, higher mental functions are affected first in the process.
Especially in the later stages of the condition, affected persons may be disoriented in time (not knowing what day of the week, day of the month, or even what year it is), in place (not knowing where they are), and in person (not knowing who they, or others around them, are). Dementia, though often treatable to some degree, is usually due to causes that are progressive and incurable.
Symptoms of dementia can be classified as either reversible or irreversible, depending upon the etiology of the disease. Less than 10% of cases of dementia are due to causes that may presently be reversed with treatment. Causes include many different specific disease processes, in the same way that symptoms of organ dysfunction such as shortness of breath, jaundice, or pain are attributable to many etiologies.
Without careful assessment of history, the short-term syndrome of delirium (often lasting days to weeks) can easily be confused with dementia, because they have all symptoms in common, save duration. Some mental illnesses, including depression and psychosis, may produce symptoms that must be differentiated from both delirium and dementia.
There are many specific types (causes) of dementia, often showing slightly different symptoms. However, the symptom overlap is such that it is impossible to diagnose the type of dementia by symptomatology alone, and in only a few cases are symptoms enough to give a high probability of some specific cause. Diagnosis is therefore aided by nuclear medicine brain scanning techniques. Certainty cannot be attained except with brain biopsy during life, or at necropsy in death.
Some of the most common forms of dementia are: Alzheimer's disease, vascular dementia, frontotemporal dementia, semantic dementia and dementia with Lewy bodies. It is possible for a patient to exhibit two or more dementing processes at the same time, as none of the known types of dementia protects against the others.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
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