As the largest resource of information specific to women's brain health, we are sure you will find what you are looking for, and promise that you will discover new information.
Published on: March 30, 2012
by Dementia Today
People with AD gradually suffer memory loss and a decline in thinking abilities, as well as major personality changes. These losses in cognitive function are accompanied by changes in the brain, including the build-up of amyloid plaques and tau-containing neurofibrillary tangles, which result in the death of brain cells and the breakdown of the connections between them.
Amyloid plaques and neurofibrillary tangles are the primary hallmarks of Alzheimer’s disease. Plaques are dense deposits of protein and cellular material outside and around the brain’s nerve cells. Tangles are twisted fibers that build up inside the nerve cells.
Scientists have known about plaques and tangles since 1906, when a German physician, Dr. Alois Alzheimer, first identified them in the brain of woman who had died after suffering paranoid delusions and psychosis. Intensive research efforts of the last two decades have revealed much about their composition, how they form, and their possible roles in the development of Alzheimer’s disease.
The deposition of amyloid in the form of plaques is thought by many scientists to trigger the cascade of events leading to Alzheimer’s pathology. Amyloid now is believed to be a critical target for eventual treatment. The best evidence that amyloid causes the disease comes from the genetic studies in which mutations of APP, PS1, PS2 and APOE e4 (the genes so far identified as causing some cases of Alzheimer’s) all facilitate amyloid accumulation.
As the disease progresses, nerve cells in several brain areas shrink and die, including cells that normally produce critical neurotransmitters, the chemical messengers that relay brain signals from one nerve cell (neuron) to another. Acetylcholine is a neurotransmitter that is deficient in people with Alzheimer’s. As nerve cells continue to die, the brain itself shrinks and the wrinkles along its surface become smoother.
Picture Source: Carl Zeiss Microimaging
It’s no secret that if you want to keep your mind sharp, it’s worth making some time to workout. Yes, exercise won’t only give you a sexy body. It’ll help get you a sexy brain as well....
Depression is a constant sadness affecting our activity level, behavior, thoughts, feelings, and sense of well-being. Those affected often feel empty and worthless, which could lead to erratic behavior or even suicide. There are numerous...
One in three cases of dementia could be prevented if more people looked after their brain health throughout life, according to an international study in the Lancet. It lists nine key risk factors including lack...
The material presented through the Think Tank feature on this website is in no way intended to replace professional medical care or attention by a qualified practitioner. WBHI strongly advises all questioners and viewers using this feature with health problems to consult a qualified physician, especially before starting any treatment. The materials provided on this website cannot and should not be used as a basis for diagnosis or choice of treatment. The materials are not exhaustive and cannot always respect all the most recent research in all areas of medicine.