People who have skin cancer may be less likely to develop Alzheimer's disease, according to new research published in the May 15, 2013, online issue of Neurology®, the medical journal of the American Academy of Neurology. The li ...
Alzheimer's disease & dementia May 15, 2013 | 5 / 5 (1) | 0 |
Forget apples – lifting weights and doing cardio can also keep the doctors away, according a new study by researchers at the University of British Columbia and Vancouver Coastal Health Research Institute.
Health May 14, 2013 | 5 / 5 (1) | 1
Professor Colin Pritchard's latest research published in Public Health journal has found that the sharp rise of dementia and other neurological deaths in people under 74 cannot be put down to the fact that we are living longer ...
Health May 10, 2013 | 5 / 5 (2) | 0
Researchers at Georgetown University Medical Center have used tiny doses of a leukemia drug to halt accumulation of toxic proteins linked to Parkinson's disease in the brains of mice. This finding provides the basis to plan ...
Genetics May 10, 2013 | 5 / 5 (3) | 0 |
(HealthDay)—About 13 percent of Americans 60 and older say they have increasing problems with thinking and memory and that they suffer growing confusion, a new report released Thursday shows.
Alzheimer's disease & dementia May 09, 2013 | 5 / 5 (1) | 0
Researchers from Massachusetts General Hospital (MGH) and Duke University have identified genetic mutations that appear to underlie a rare but devastating syndrome combining reproductive failure with cerebellar ataxia – ...
Genetics May 08, 2013 | 5 / 5 (1) | 0
(Medical Xpress)—New research shows that drinking one to three glasses of champagne a week may counteract the memory loss associated with ageing, and could help delay the onset of degenerative brain disorders, ...
Health May 08, 2013 | 4.4 / 5 (9) | 5 |
Some memory problems common to older adults may stem from an inability to segment daily life into discrete experiences, according to a new study published in Psychological Science, a journal of the Association for Psycho ...
Psychology & Psychiatry May 07, 2013 | not rated yet | 0 |
Research from the Regenstrief Institute, the Indiana University Center for Aging Research and Wishard-Eskenazi Health on medications commonly taken by older adults has found that drugs with strong anticholinergic effects ...
Alzheimer's disease & dementia May 07, 2013 | 5 / 5 (1) | 0 |
Baxter International Inc. says that a blood product it was testing failed to slow mental decline or to preserve physical function in a major study of 390 patients with mild to moderate Alzheimer's disease.
Alzheimer's disease & dementia May 07, 2013 | not rated yet | 0
Stumped for years by a natural filter in the body that allows few substances, including life-saving drugs, to enter the brain through the bloodstream, physicians who treat neurological diseases may soon have a new pathway ...
Medical research May 06, 2013 | 5 / 5 (1) | 0
Traumatic brain injury poses complex diagnostic, management and treatment challenges in older people
Each year more than 1.7 million people in the United States sustain a traumatic brain injury (TBI). The incidence of TBI in older adults poses special diagnostic, management and treatment challenges, say experts in a special ...
Neuroscience May 06, 2013 | 5 / 5 (1) | 0
(Medical Xpress)—Late-life depression is associated with an increased risk for all-cause dementia, Alzheimer's disease and, most predominantly, vascular dementia, according to the results of a new meta-analysis published ...
Psychology & Psychiatry May 02, 2013 | not rated yet | 0
They identified blood-based biological markers that are associated with the build up of a toxic protein in the brain which occurs years before symptoms appear and irreversible brain damage has occurred.
Alzheimer's disease & dementia May 01, 2013 | not rated yet | 0
Elderly patients who receive anesthesia are no more likely to develop long-term dementia or Alzheimer's disease than other seniors, according to new Mayo Clinic research. The study analyzed thousands of patients using the ...
Alzheimer's disease & dementia May 01, 2013 | not rated yet | 1 |
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.
Latest Spotlight News
(Medical Xpress)—A research team, led by Jeremy Barr, a biology post-doctoral fellow, unveils a new immune system that protects humans and animals from infection.
May 20, 2013 | 4.8 / 5 (30) | 9 |
Until now, little was scientifically known about the human potential to cultivate compassion—the emotional state of caring for people who are suffering in a way that motivates altruistic behavior.
May 22, 2013 | 5 / 5 (4) | 6 |
Women at a particular stage in their monthly menstrual cycle may be more vulnerable to some of the psychological side-effects associated with stressful experiences, according to a study from UCL.
May 24, 2013 | 4 / 5 (4) | 4 |
Salamanders' immune systems are key to their remarkable ability to regrow limbs, and could also underpin their ability to regenerate spinal cords, brain tissue and even parts of their hearts, scientists have ...
May 20, 2013 | 4.9 / 5 (7) | 5 |
Teams of highly respected Alzheimer's researchers failed to replicate what appeared to be breakthrough results for the treatment of this brain disease when they were published last year in the journal Science.
May 23, 2013 | 3 / 5 (2) | 3 |
(Medical Xpress)—Regulating the distribution of power in neurons is done by a system that makes the national electric grid look simple by comparison. Each neuron has several thousand mitochondria confined ...
May 23, 2013 | 4.9 / 5 (10) | 0 |
A brief visual task can predict IQ, according to a new study. This surprisingly simple exercise measures the brain's unconscious ability to filter out visual movement. The study shows that individuals whose ...
May 23, 2013 | 4.6 / 5 (14) | 2 |
(Medical Xpress)—The human brain is able to identify individuals' voices by comparing them against an internal 'average voice' prototype, according to neuroscientists.
May 23, 2013 | 3.7 / 5 (3) | 3 |
New research suggests that a compound abundant in the Mediterranean diet takes away cancer cells' "superpower" to escape death. By altering a very specific step in gene regulation, this compound essentially re-educates cancer ...
May 20, 2013 | 4.8 / 5 (19) | 3 |
(Medical Xpress)—A new study by researchers in the US has shown that an ancient virus can be modified to help in the fight against the simian immunodeficiency virus SIV, which is the equivalent in monkeys ...
May 24, 2013 | 5 / 5 (3) | 0 |