Past research has focused on prevention of the disease by reducing the levels of proteins that
cause brain plaques and tangles and kill nerve cells.
For one, it would give them three specific biological markers to hone in on: The buildup of beta amyloid and tau proteins, which
cause brain plaques associated with Alzheimer's, and brain nerve cell death.
Not exact matches
If a clump of this tissue, called
plaque, breaks free, it can travel into the
brain and block a smaller blood vessel,
causing a stroke.
Until recently, the only way to look at human
plaques was by analyzing the
brains of people who died from the disease — a challenge one scientist compared to looking at a car wreck and trying to puzzle out the accident's
cause.
The
brains of people with Alzheimer's are dotted with
plaques of amyloid beta protein and tangles of tau protein, which together
cause brain tissue to atrophy and die.
For years the prevailing theory was that memory loss was
caused by protein fragments, so - called
plaques and tangles, that accumulate in the
brain.
Amyloid
plaques are the toxic clumps of protein that
cause damage to cells in the
brains of people with Alzheimer's disease.
What these illnesses have in common is that they're
caused by abnormal proteins that accumulate in or between
brain cells to form
plaques, producing damage that
causes mental decline and early death.
Researchers suspect that these people's
brains are somehow impervious to the usual devastation thought to be
caused by those
plaques and tangles.
The main hypothesis on the
cause of Alzheimer's involves amyloid deposition, the buildup of
plaques in the
brain that impair neurological function; most biomedical efforts to tackle the disease have focused on this issue.
Whether this strategy will stop Alzheimer's disease in its tracks is a big if, however, because there's still a debate over whether the b - amyloid deposited in
plaques causes the
brain damage seen in Alzheimer's disease, or instead is a symptom of some other underlying factor.
Particulate matter in the body, such as the cholesterol crystals associated with vascular disease and the amyloid
plaques that form in the
brain in Alzheimer's disease, can also
cause inflammation but the exact mechanism of action remains unclear.
Alzheimer's disease, a major source of dementia and memory loss in the elderly, is
caused by the accumulation of protein
plaques which choke neurons in the
brain.
Could
plaque buildup in the
brain be the
cause rather than the result of the debilitating neurogenerative disorder?
People who have Alzheimer's disease typically have
plaques of sticky amyloid proteins in their
brains, although it remains unclear whether these are a
cause or a consequence of the condition.
The results, published in the August 5 issue of Neuron, showed that three days after injection the immune system had cleared the
plaque -
causing Ab from both the outside and inside of the mice
brain cells.
As luck would have it, cells in the
brain called microglia act as the
brain's street sweeper, zapping infectious agents, damaged cells, and, importantly, protein tangles and
plaques that are thought to
cause dementia.
What these illnesses have in common is that they're
caused by abnormal proteins that accummulate in or between
brain cells to form
plaques, producing damage that
causes mental decline and early death.
The nature of those
plaques finally came into focus in 1984, when George Glenner, a research scientist at the University of California, San Diego, identified the peptide called amyloid - beta and hypothesized that Alzheimer's was
caused by «amyloidosis» of the
brain, a process in which insoluble forms of an amyloid protein accumulate.
Schindler said she is specifically interested in research being done on the amyloid protein, which is believed to
cause plaques in the
brain which lead to the death of nerve cells that
cause dementia.
Plaque and toxin deposits in the
brain cause once - healthy neurons (nerve cells) to work less efficiently together and, eventually, die.
SAN FRANCISCO, CA — Researchers at the Gladstone Institutes have shown that low levels of the protein progranulin in the
brain can increase the formation of amyloid - beta
plaques (a hallmark of Alzheimer's disease),
cause neuroinflammation, and worsen memory deficits in a mouse model of this condition.
Meanwhile, researchers at the Queensland
Brain Institute have shown that noninvasive ultrasound can restore memory in mice with AD, by breaking apart the neurotoxic beta - amyloid plaques in the brain they think cause cognitive dec
Brain Institute have shown that noninvasive ultrasound can restore memory in mice with AD, by breaking apart the neurotoxic beta - amyloid
plaques in the
brain they think cause cognitive dec
brain they think
cause cognitive decline.
Scientists have identified a basic pathologic process underlying Alzheimer's development that involves the formation of abnormal protein deposits in the
brain known as beta - amyloid
plaques, but they still aren't entirely sure what
causes this to happen.
Exciting new research shows that curcumin stops the process that
causes the buildup of beta - amyloid
plaques in the
brain!
Glycation is a factor of glucose concentration exposure and time, with more AGEs forming upon longer exposure to higher concentrations of glucose.33 It follows that in a body that is hyperinsulinemic, and a
brain that is insulin - resistant, the peripheral hyperinsulinism will inhibit the clearance of soluble Aβ by IDE, thereby
causing it to remain in the extracellular space for an extended amount of time, and the functional «hyperglycemia» in the
brain will provide an elevated level of glucose — the perfect storm for glycation of Aβ and its aggregation into insoluble
plaques.
High Vitamin C supplementation reduces amyloid
plaque deposition (
cause of AD), blood
brain barrier disruptions and mitochondrial dysfunction in the
brains.
A
plaque that builds up in the
brain of Alzheimer's patients called beta - amyloid
plaques is believed to be one of the primary
causes of Alzheimer's disease.
The
brains of Alzheimer's patients are dotted with these
plaques, which likely impair with adjacent neuron function,
causing long term damage.
Large population studies suggest that getting omega - 3 fatty acids in the diet, primarily from fish, helps protect against stroke
caused by
plaque build up and blood clots in the arteries that lead to the
brain.
Cerebral accumulation of amyloid
plaques and neurofibrillary tangles (NFT) leads to neurodegeneration in the Alzheimer
brain, which
causes progressive cognitive dysfunction such as memory loss and language problems.
A large proportion of the chemicals and heavmiy metals we are exposed to in the modern world are detrimental to
brain health in one way or another; aluminium accumulation in the
brain is known to
cause the amyloid
plaque formation behind Alzheimer's, mercury is linked to autism, and fluoride can lower IQ levels at all ages.
Insulin resistance
causes insulin levels to rise, which may interfere with enzymes that slow down the production of the protein found in
brain plaques, says Ian Murray, PhD, an assistant professor of neuroscience at the Texas A&M Health Science Center College of Medicine, in College Station.