Researchers discover sleep mechanism critical to memory consolidation and find that Ambien enhances the process
(Medical Xpress)—A team of sleep researchers led by UC Riverside psychologist Sara C. Mednick has confirmed the mechanism that enables the brain to consolidate memory and found that a commonly prescribed ...
Neuroscience Mar 12, 2013 | 4 / 5 (13) | 7 |
Antipsychotic administration in the elderly is associated with an increased risk for cerebrovascular accident, more commonly known as stroke; a new study published in Biological Psychiatry provides additional insight into t ...
Psychology & Psychiatry Mar 11, 2013 | not rated yet | 0
(Medical Xpress)—Buphenyl, an FDA-approved medication for hyperammonemia, may protect memory and prevent the progression of Alzheimer's disease. Hyperammonemia is a life-threatening condition that can affect patients at ...
Alzheimer's disease & dementia Mar 11, 2013 | 5 / 5 (2) | 0 |
To mark International Women's Day on 8th March 2013, the Institute of Gender Medicine at the MedUni Vienna has presented an alarming result obtained from gender-specific research. According to recent studies, ...
Health Mar 11, 2013 | not rated yet | 0
According to a 2012 World Health Organization report, over 35 million people worldwide currently have dementia, a number that is expected to double by 2030 (66 million) and triple by 2050 (115 million). Alzheimer's disease, ...
Alzheimer's disease & dementia Mar 07, 2013 | 5 / 5 (2) | 0 |
Well timed to coincide with the Super Bowl, the US football final that seems to obsess the nation, President Obama raised the issue of the effects of long term damage caused by concussion in the game. In an interview with ...
Health Mar 07, 2013 | not rated yet | 0
(Medical Xpress)—University of British Columbia researchers have successfully normalized the production of blood vessels in the brain of mice with Alzheimer's disease (AD) by immunizing them with amyloid beta, a protein ...
Alzheimer's disease & dementia Mar 07, 2013 | 5 / 5 (1) | 0 |
(Medical Xpress)—Further evidence that a program of controlled, progressive aerobic exercise may help restore normal cognitive function in patients who have sustained a concussion has been published by ...
Neuroscience Mar 07, 2013 | not rated yet | 0
Short bouts of moderately intense exercise seem to boost self control, indicates an analysis of the published evidence in the British Journal of Sports Medicine.
Health Mar 06, 2013 | 4 / 5 (1) | 0
Adding the dietary supplements folate and vitamin B12 to treatment with antipsychotic medication improved a core symptom component of schizophrenia in a study of more than 100 patients. The study focused on negative symptoms ...
Psychology & Psychiatry Mar 06, 2013 | 5 / 5 (1) | 0 |
Research illuminates molecular mechanism for why stimulating environment may protect against Alzheimer's disease
"Use it or lose it." The saying could apply especially to the brain when it comes to protecting against Alzheimer's disease. Previous studies have shown that keeping the mind active, exercising and social interactions may ...
Alzheimer's disease & dementia Mar 06, 2013 | 5 / 5 (5) | 0 |
(Medical Xpress)—University of Reading researchers have found that a chemical used in some anti-wrinkle creams can nearly double the amount of the protein collagen needed to give skin its elasticity.
Medications Mar 06, 2013 | 4 / 5 (1) | 1
(Medical Xpress)—Scientists at UCLA have discovered a new genetic risk factor for Alzheimer's disease by screening people's DNA and then using an advanced type of scan to visualize their brains' connections.
Neuroscience Mar 06, 2013 | not rated yet | 0 |
A team of European scientists from the University Medical Center Hamburg-Eppendorf (UKE) and the Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) at the University of Cologne in ...
Alzheimer's disease & dementia Mar 05, 2013 | 5 / 5 (1) | 0
A ground-breaking trial that hopes to discover if a drug commonly used to treat high blood pressure could slow down the progression of Alzheimer's disease (AD) will begin shortly.
Alzheimer's disease & dementia Mar 04, 2013 | 3.8 / 5 (4) | 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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