Preclinical stage. Changes in the brain begin years before a person shows any signs of the disease. This time period is called preclinical Alzheimer disease and it can last for years. Mild, early stage. Symptoms at this stage include mild forgetfulness. This may seem like the mild forgetfulness that often comes with aging. Alzheimer's and dementia medications – overview of cholinesterase inhibitors (Aricept, Exelon, Razadyne), memantine (Namenda) and memantine + donepezil (Namzaric). Get information and resources for Alzheimer's and other dementias from the Alzheimer's Association. Nov 8, 2021 · The new Alzheimer's drug Aduhelm isn't reaching many patients. And doctors say reasons include its high cost, insurers' reluctance to cover it, and lingering questions about whether it actually ... Jul 17, 2023 · These drugs target amyloid, a sticky protein that piles up in the brains of people with Alzheimer’s. The arrival of this new treatment approach marks a turning point in what has been a long ... Aug 30, 2023 · Three cholinesterase inhibitors are commonly prescribed: Donepezil (Aricept) is approved to treat all stages of the disease. It's taken once a day as a pill. Galantamine (Razadyne) is approved to treat mild to moderate Alzheimer's. It's taken as a pill once a day or as an... Rivastigmine (Exelon) is ... Jan 6, 2023 · The newly approved drug, Leqembi, should be used only for patients in early and mild stages of Alzheimer’s disease, matching the status of patients in its clinical trials, the F.D.A. label says. Current Alzheimer's treatments temporarily improve symptoms of memory loss and problems with thinking and reasoning. These Alzheimer's treatments boost the performance of chemicals in the brain that carry information from one brain cell to another. They include cholinesterase inhibitors and the medicine memantine (Namenda).Apr 23, 2022 · Unfortunately, the short answer is no—mood stabilizers have not been found effective for treating dementia, and some may even cause harm. Several different medications—many of which are anticonvulsants (drugs to reduce seizures)—are classified as mood stabilizers. In general, research has not supported widespread use of mood stabilizers ... Jun 7, 2021 · Dr. Richard Isaacson, director of the Alzheimer’s Prevention Clinic at Weill Cornell Medicine and NewYork-Presbyterian in New York, who had patients in the original aducanumab clinical studies ... Even though the chief cause of behavioral symptoms is the effect of Alzheimer's disease on the brain, an examination may reveal other treatable conditions that are contributing to the behavior. Contributing conditions may include: Drug side effects. Many people with Alzheimer's take prescription medications for other health issues. For managing cough and cold symptoms, non-drug treatments like fluids, rest, good nutrition, hot tea with honey, and chicken soup are preferred. 5. Seek medical attention when needed. Symptoms should improve within seven days. If symptoms persist or worsen, seek attention from a healthcare provider right away. Jun 7, 2021 · The FDA approved Biogen's Alzheimer's disease drug aducanumab. It's the first drug cleared by U.S. regulators to slow cognitive decline in people living with Alzheimer's and the first new medicine ... Jun 22, 2021 · The eye-popping $56,000 price tag on Biogen’s newly approved Alzheimer’s medication has generated significant debate on the value of a drug not yet proven to slow the mind-robbing disease. Successful clinical trials of mesenchymal stem cell (MSC) therapy for Alzheimer's disease could significantly impact the future of Alzheimer's disease treatment and public health. If clinical trials demonstrate that MSC therapy is a safe and effective treatment option for Alzheimer's, it could provide a new and promising avenue for treating the ... Alzheimer's and dementia medications – overview of cholinesterase inhibitors (Aricept, Exelon, Razadyne), memantine (Namenda) and memantine + donepezil (Namzaric). Get information and resources for Alzheimer's and other dementias from the Alzheimer's Association.May 12, 2023 · Drug approval process for the treatment of Alzheimer’s disease. Alzheimer Society of Canada. Get the full picture of how a drug gets approved for public use in Canada, including a list of the currently approved medications that can treat the symptoms of Alzheimer's. Treatment options. Alzheimer Society of Canada. The Alzheimer's Association can help you learn more about MCI as well as Alzheimer’s disease and other dementias, and help you find local support services. Call our 24/7 Helpline: 800.272.3900. Locate a support group in your community. Join our online community. Jan 6, 2023 · Alzheimer’s is the seventh-leading cause of death in the U.S., according to the Centers for Disease Control and Prevention. Most drugs approved by the FDA for Alzheimer’s are aimed at helping ... Accelerating Alzheimer's Research and Drug Development. The Accelerating Medicines Partnership® Program for Alzheimer's Disease (AMP® AD) is a precompetitive partnership among government, industry, and nonprofit organizations to transform the current model for developing new diagnostics and treatments for Alzheimer's disease. Jul 26, 2023 · CNN —. In early July, the US Food and Drug Administration granted traditional full approval of Leqembi (lecanemab-irmb) for the treatment of Alzheimer’s disease (AD). This is the first ... Aug 25, 2021 · Allow the medicine a few weeks to take effect. It is recommended that people with Alzheimer's should NOT take anticholinergic drugs. These drugs are used to treat many medical problems such as sleeping problems, stomach cramps, incontinence, asthma, motion sickness, and muscle spasms. Side effects, such as confusion, can be serious for a person ... Jun 29, 2012 · Alzheimer's disease is an age-associated, irreversible, progressive neurodegenerative disease that is characterized by severe memory loss, unusual behavior, personality changes, and a decline in cognitive function. No cure for Alzheimer's exists, and the drugs currently available to treat the disease have limited effectiveness. New research findings give reason for hope, and several drugs are being studied in clinical trials to determine if they can slow the progress of the disease or improve memory for a period of time. There are some medications available to assist in managing some of the most troubling symptoms of Alzheimer's disease, including the following ... New research findings give reason for hope, and several drugs are being studied in clinical trials to determine if they can slow the progress of the disease or improve memory for a period of time. There are some medications available to assist in managing some of the most troubling symptoms of Alzheimer's disease, including the following ... May 7, 2022 · To diagnose Alzheimer's dementia, doctors conduct tests to assess memory impairment and other thinking skills, judge functional abilities, and identify behavior changes. They also perform a series of tests to rule out other possible causes of impairment. Alzheimer's dementia can be diagnosed in several different ways. Alzheimer's disease ( AD) is a neurodegenerative disease that usually starts slowly and progressively worsens, [2] and is the cause of 60–70% of cases of dementia. [2] [10] The most common early symptom is difficulty in remembering recent events. [1] As the disease advances, symptoms can include problems with language, disorientation ... Fig 1. Aetiology of Alzheimer's disease with therapeutic targets. A – secretase enzyme inhibitors; B – NMDA receptor modulators, eg memantine; C – immunotherapy, including immunisation and direct anti-amyloid therapy, including monoclonal antibodies; D – anti-tau therapy; E – anti-inflammatory treatments, including NSAIDs; F ... Three cholinesterase inhibitors are commonly prescribed: Donepezil (Aricept) is approved to treat all stages of the disease. It's taken once a day as a pill. Galantamine (Razadyne) is approved to treat mild to moderate Alzheimer's. It's taken as a pill once a day or as an... Rivastigmine (Exelon) is ...5. FDA-approved Alzheimer’s medications Currently, there are 5 FDA-approved drugs that may help delay, lessen, or stabilize Alzheimer’s symptoms like memory loss and confusion. They can improve quality of life both for the person with Alzheimer’s and for the people caring for them. Aug 30, 2022 · Antipsychotic medications can treat dementia symptoms such as aggression or psychosis. But these drugs can cause serious side effects. ... Alzheimer’s disease is the most common form of dementia ... Jun 7, 2021 · Dr. Richard Isaacson, director of the Alzheimer’s Prevention Clinic at Weill Cornell Medicine and NewYork-Presbyterian in New York, who had patients in the original aducanumab clinical studies ... Memantine. This medicine is not an AChE inhibitor. It works by blocking the effects of an excessive amount of a chemical in the brain called glutamate. Memantine is used for moderate or severe Alzheimer's disease. It's suitable for those who cannot take or are unable to tolerate AChE inhibitors. It's also suitable for people with severe ... For managing cough and cold symptoms, non-drug treatments like fluids, rest, good nutrition, hot tea with honey, and chicken soup are preferred. 5. Seek medical attention when needed. Symptoms should improve within seven days. If symptoms persist or worsen, seek attention from a healthcare provider right away. For managing cough and cold symptoms, non-drug treatments like fluids, rest, good nutrition, hot tea with honey, and chicken soup are preferred. 5. Seek medical attention when needed. Symptoms should improve within seven days. If symptoms persist or worsen, seek attention from a healthcare provider right away. Nov 29, 2022 · The accumulation of soluble and insoluble aggregated amyloid-beta (Aβ) may initiate or potentiate pathologic processes in Alzheimer’s disease. Lecanemab, a humanized IgG1 monoclonal antibody ... May 12, 2023 · Drug approval process for the treatment of Alzheimer’s disease. Alzheimer Society of Canada. Get the full picture of how a drug gets approved for public use in Canada, including a list of the currently approved medications that can treat the symptoms of Alzheimer's. Treatment options. Alzheimer Society of Canada. New research findings give reason for hope, and several drugs are being studied in clinical trials to determine if they can slow the progress of the disease or improve memory for a period of time. There are some medications available to assist in managing some of the most troubling symptoms of Alzheimer's disease, including the following ... Alzheimer's and dementia medications – overview of cholinesterase inhibitors (Aricept, Exelon, Razadyne), memantine (Namenda) and memantine + donepezil (Namzaric). Get information and resources for Alzheimer's and other dementias from the Alzheimer's Association.Aug 25, 2021 · Allow the medicine a few weeks to take effect. It is recommended that people with Alzheimer's should NOT take anticholinergic drugs. These drugs are used to treat many medical problems such as sleeping problems, stomach cramps, incontinence, asthma, motion sickness, and muscle spasms. Side effects, such as confusion, can be serious for a person ... Alzheimer’s Treatment and Support. While there are currently no treatments available to slow or stop the brain damage caused by Alzheimer’s disease, several medications can temporarily help improve the symptoms of dementia for some people. These medications work by increasing neurotransmitters in the brain. Huperzine A. Huperzine A (pronounced HOOP-ur-zeen) is a moss extract that has been used in traditional Chinese medicine for centuries. It has properties similar to those of cholinesterase inhibitors, one class of FDA-approved Alzheimer's medications. As a result, it is promoted as a treatment for Alzheimer's disease. Three cholinesterase inhibitors are commonly prescribed: Donepezil (Aricept) is approved to treat all stages of the disease. It's taken once a day as a pill. Galantamine (Razadyne) is approved to treat mild to moderate Alzheimer's. It's taken as a pill once a day or as an... Rivastigmine (Exelon) is ...Transdermal rivastigmine is also used to treat dementia in people with Parkinson's disease (a brain system disease with symptoms of slowing of movement, muscle weakness, shuffling walk, and loss of memory). Rivastigmine is in a class of medications called cholinesterase inhibitors. It improves mental function (such as memory and thinking) by ... Aug 30, 2023 · Omega-3 fatty acids in fish or from supplements may lower the risk of developing dementia. But clinical studies have shown no benefit for treating Alzheimer's disease symptoms. Curcumin. This herb comes from turmeric and has anti-inflammatory and antioxidant properties that might affect chemical processes in the brain. Alzheimer’s Treatment and Support. While there are currently no treatments available to slow or stop the brain damage caused by Alzheimer’s disease, several medications can temporarily help improve the symptoms of dementia for some people. These medications work by increasing neurotransmitters in the brain. May 7, 2022 · To diagnose Alzheimer's dementia, doctors conduct tests to assess memory impairment and other thinking skills, judge functional abilities, and identify behavior changes. They also perform a series of tests to rule out other possible causes of impairment. Alzheimer's dementia can be diagnosed in several different ways. Even though the chief cause of behavioral symptoms is the effect of Alzheimer's disease on the brain, an examination may reveal other treatable conditions that are contributing to the behavior. Contributing conditions may include: Drug side effects. Many people with Alzheimer's take prescription medications for other health issues. Aug 30, 2023 · Some of the treatments that have been studied recently include: Vitamin E. Although vitamin E doesn't prevent Alzheimer's, taking 2,000 international units daily may help delay symptoms getting worse in people who ... Omega-3 fatty acids. Omega-3 fatty acids in fish or from supplements may lower the ... Aug 5, 2020 · Alzheimer’s disease (AD) is one of the most common diseases in elderly people with a high incidence of dementia at approximately 60–80%. The pathogenesis of AD was quite complicated and currently there is no unified conclusion in the academic community, so no efficiently clinical treatment is available. In recent years, with the development of traditional Chinese medicine (TCM ... Jun 7, 2021 · Dr. William Burke goes over a PET brain scan in 2018 at Banner Alzheimer's Institute in Phoenix. The drug company Biogen has received federal approval for a medicine to treat early Alzheimer's ... Huperzine A. Huperzine A (pronounced HOOP-ur-zeen) is a moss extract that has been used in traditional Chinese medicine for centuries. It has properties similar to those of cholinesterase inhibitors, one class of FDA-approved Alzheimer's medications. As a result, it is promoted as a treatment for Alzheimer's disease. Current Alzheimer's treatments temporarily improve symptoms of memory loss and problems with thinking and reasoning. These Alzheimer's treatments boost the performance of chemicals in the brain that carry information from one brain cell to another. They include cholinesterase inhibitors and the medicine memantine (Namenda).5. FDA-approved Alzheimer’s medications Currently, there are 5 FDA-approved drugs that may help delay, lessen, or stabilize Alzheimer’s symptoms like memory loss and confusion. They can improve quality of life both for the person with Alzheimer’s and for the people caring for them. These medicines include: Donepezil ( Aricept) Galantamine ( Razadyne, Razadyne ER, Reminyl) Rivastigmine ( Exelon) What to expect: Most people with Alzheimer’s who take one of these medications ... Jun 7, 2021 · June 07, 2021. Today, the U.S. Food and Drug Administration approved Aduhelm (aducanumab) for the treatment of Alzheimer’s, a debilitating disease affecting 6.2 million Americans. Aduhelm was ... Jun 7, 2021 · June 07, 2021. Today, the U.S. Food and Drug Administration approved Aduhelm (aducanumab) for the treatment of Alzheimer’s, a debilitating disease affecting 6.2 million Americans. Aduhelm was ... Aug 5, 2020 · Alzheimer’s disease (AD) is one of the most common diseases in elderly people with a high incidence of dementia at approximately 60–80%. The pathogenesis of AD was quite complicated and currently there is no unified conclusion in the academic community, so no efficiently clinical treatment is available. In recent years, with the development of traditional Chinese medicine (TCM ... In Western medicine, dementia refers to a spectrum of diseases affecting cognition, mental health, and physical abilities. Ancient medical literatures of traditional Chinese medicine (TCM) also recorded dementia-like symptoms, but described the disease from a totally distinct theoretical point of vi … 5. FDA-approved Alzheimer’s medications Currently, there are 5 FDA-approved drugs that may help delay, lessen, or stabilize Alzheimer’s symptoms like memory loss and confusion. They can improve quality of life both for the person with Alzheimer’s and for the people caring for them. Feb 29, 2020 · Alzheimer disease (AD) is one of the greatest medical care challenges of our century and is the main cause of dementia. In total, 40 million people are estimated to suffer from dementia throughout the world, and this number is supposed to become twice as much every 20 years, until approximately 2050. 1. The Alzheimer's Association can help you learn more about MCI as well as Alzheimer’s disease and other dementias, and help you find local support services. Call our 24/7 Helpline: 800.272.3900. Locate a support group in your community. Join our online community. Before discussing Alzheimer’s medications, we will first explore the symptoms and causes of Alzheimer’s disease. 19.3.1. Types of Dementias. Alzheimer’s disease is a type of dementia, which is a group of common symptoms that include declines in memory, language and thinking skills, and ability to perform everyday activities. Dementia is ... Nov 15, 2020 · Alzheimer Disease (AD) is a neurodegenerative disease characterized by two neuropathological hallmarks: extracellular deposition of amyloid plaques and intracellular neurofibrillary tangles. Current treatment for AD (donepezil, galantamine, rivastigmine and memantine) is only symptomatic and has modest benefits. Jun 7, 2021 · June 07, 2021. Today, the U.S. Food and Drug Administration approved Aduhelm (aducanumab) for the treatment of Alzheimer’s, a debilitating disease affecting 6.2 million Americans. Aduhelm was ... Compare risks and benefits of common medications used for Alzheimer's Disease. Find the most popular drugs, view ratings and user reviews.Sep 28, 2022 · Biogen Inc. headquarters are shown March 11, 2020, in Cambridge, Mass. Shares of Biogen and other drugmakers researching Alzheimer’s disease soared early Wednesday, Sept. 28, 2022, after Japan’s Eisai Co. said its potential treatment appeared to slow the fatal disease’s progress in a late-stage study. Jul 17, 2023 · 03:23 - Source: CNN. CNN —. The full approval this month of the Alzheimer’s drug Leqembi marked a historic shift in the treatment of the disease: For the first time, doctors have a medicine to ... Aug 5, 2020 · Alzheimer’s disease (AD) is one of the most common diseases in elderly people with a high incidence of dementia at approximately 60–80%. The pathogenesis of AD was quite complicated and currently there is no unified conclusion in the academic community, so no efficiently clinical treatment is available. In recent years, with the development of traditional Chinese medicine (TCM ... Jun 27, 2023 · Washington, DC. 24.2 mi. Raymond Turner is a Neurologist in Washington, Washington, D.c.. Dr. Turner has been practicing medicine for over 35 years and is rated as a Distinguished doctor by MediFind in the treatment of Alzheimer's Disease. He is also highly rated in 2 other conditions, according to our data. Aug 7, 2023 · Cost of New Alzheimer's Drugs. Other issues that have been cited by some experts include the possibly prohibitive price tag: while biogen has reduced the original cost by nearly 50%, aducanumab ... Jun 1, 2020 · Whether you’re caring for someone with Alzheimer’s disease or another dementia diagnosis, medication can help keep individuals calm and reduce their stress and anxiety. Let’s take a closer look at the different types of drugs that are used in Alzheimer’s care and other dementia cases. Preventing Pain Nov 29, 2022 · The experimental drug lecanemab shows “potential” as an Alzheimer’s disease treatment, according to new Phase 3 trial results, but the findings raise some safety concerns because of its ... Jun 1, 2018 · Alzheimer disease is the most common form of dementia. In 2016, an estimated 5.2 million Americans age 65 and older had Alzheimer disease. The prevalence is projected to increase to 13.8 million by 2050, including 7 million people age 85 and older. 1. Although no cure for dementia exists, several cognition-enhancing drugs have been approved by ... Preclinical stage. Changes in the brain begin years before a person shows any signs of the disease. This time period is called preclinical Alzheimer disease and it can last for years. Mild, early stage. Symptoms at this stage include mild forgetfulness. This may seem like the mild forgetfulness that often comes with aging. Sep 28, 2022 · Biogen Inc. headquarters are shown March 11, 2020, in Cambridge, Mass. Shares of Biogen and other drugmakers researching Alzheimer’s disease soared early Wednesday, Sept. 28, 2022, after Japan’s Eisai Co. said its potential treatment appeared to slow the fatal disease’s progress in a late-stage study. Jun 27, 2023 · Washington, DC. 24.2 mi. Raymond Turner is a Neurologist in Washington, Washington, D.c.. Dr. Turner has been practicing medicine for over 35 years and is rated as a Distinguished doctor by MediFind in the treatment of Alzheimer's Disease. He is also highly rated in 2 other conditions, according to our data. 5. FDA-approved Alzheimer’s medications Currently, there are 5 FDA-approved drugs that may help delay, lessen, or stabilize Alzheimer’s symptoms like memory loss and confusion. They can improve quality of life both for the person with Alzheimer’s and for the people caring for them. There are three drugs of this type: donepezil ( Aricept ), galantamine ( Razadyne ), and rivastigmine ( Exelon ). Aricept is the only treatment approved by the FDA for all stages of Alzheimer’s ... Aug 30, 2023 · Some of the treatments that have been studied recently include: Vitamin E. Although vitamin E doesn't prevent Alzheimer's, taking 2,000 international units daily may help delay symptoms getting worse in people who ... Omega-3 fatty acids. Omega-3 fatty acids in fish or from supplements may lower the ... Jun 29, 2012 · Alzheimer's disease is an age-associated, irreversible, progressive neurodegenerative disease that is characterized by severe memory loss, unusual behavior, personality changes, and a decline in cognitive function. No cure for Alzheimer's exists, and the drugs currently available to treat the disease have limited effectiveness. Alzheimer's and dementia medications – overview of cholinesterase inhibitors (Aricept, Exelon, Razadyne), memantine (Namenda) and memantine + donepezil (Namzaric). Get information and resources for Alzheimer's and other dementias from the Alzheimer's Association. Jul 17, 2023 · 03:23 - Source: CNN. CNN —. The full approval this month of the Alzheimer’s drug Leqembi marked a historic shift in the treatment of the disease: For the first time, doctors have a medicine to ... Some of the treatments that have been studied recently include: Vitamin E. Although vitamin E doesn't prevent Alzheimer's, taking 2,000 international units daily may help delay symptoms getting worse in people who ... Omega-3 fatty acids. Omega-3 fatty acids in fish or from supplements may lower the ...Huperzine A. Huperzine A (pronounced HOOP-ur-zeen) is a moss extract that has been used in traditional Chinese medicine for centuries. It has properties similar to those of cholinesterase inhibitors, one class of FDA-approved Alzheimer's medications. As a result, it is promoted as a treatment for Alzheimer's disease. Sep 28, 2022 · Biogen Inc. headquarters are shown March 11, 2020, in Cambridge, Mass. Shares of Biogen and other drugmakers researching Alzheimer’s disease soared early Wednesday, Sept. 28, 2022, after Japan’s Eisai Co. said its potential treatment appeared to slow the fatal disease’s progress in a late-stage study.
Aug 30, 2022 · Antipsychotic medications can treat dementia symptoms such as aggression or psychosis. But these drugs can cause serious side effects. ... Alzheimer’s disease is the most common form of dementia ... . Daytona buc ee
Some of the treatments that have been studied recently include: Vitamin E. Although vitamin E doesn't prevent Alzheimer's, taking 2,000 international units daily may help delay symptoms getting worse in people who ... Omega-3 fatty acids. Omega-3 fatty acids in fish or from supplements may lower the ...Nov 29, 2022 · The experimental drug lecanemab shows “potential” as an Alzheimer’s disease treatment, according to new Phase 3 trial results, but the findings raise some safety concerns because of its ... Jun 13, 2023 · In June 2021, the Food and Drug Administration approved Aduhelm (aducanumab) as another option to treat Alzheimer’s disease. Aduhelm is the first new drug approved for the disease since 2003 as well as the first to specifically target amyloid-beta, the protein researchers widely believe to play a role in the development of Alzheimer's. Lecanemab and aducanumab are immunotherapies with FDA Accelerated Approval to treat early Alzheimer’s. These drugs target the protein beta-amyloid to help reduce amyloid plaques, one of the hallmark brain changes in Alzheimer’s.Aug 5, 2020 · Alzheimer’s disease (AD) is one of the most common diseases in elderly people with a high incidence of dementia at approximately 60–80%. The pathogenesis of AD was quite complicated and currently there is no unified conclusion in the academic community, so no efficiently clinical treatment is available. In recent years, with the development of traditional Chinese medicine (TCM ... Aug 5, 2020 · Alzheimer’s disease (AD) is one of the most common diseases in elderly people with a high incidence of dementia at approximately 60–80%. The pathogenesis of AD was quite complicated and currently there is no unified conclusion in the academic community, so no efficiently clinical treatment is available. In recent years, with the development of traditional Chinese medicine (TCM ... Aug 30, 2023 · Omega-3 fatty acids in fish or from supplements may lower the risk of developing dementia. But clinical studies have shown no benefit for treating Alzheimer's disease symptoms. Curcumin. This herb comes from turmeric and has anti-inflammatory and antioxidant properties that might affect chemical processes in the brain. 5. FDA-approved Alzheimer’s medications Currently, there are 5 FDA-approved drugs that may help delay, lessen, or stabilize Alzheimer’s symptoms like memory loss and confusion. They can improve quality of life both for the person with Alzheimer’s and for the people caring for them. Jul 7, 2023 · The US Food and Drug Administration on Thursday granted traditional full approval to the Alzheimer’s drug Leqembi, the first medicine proven to slow the course of the memory-robbing disease. Alzheimer’s Treatment and Support. While there are currently no treatments available to slow or stop the brain damage caused by Alzheimer’s disease, several medications can temporarily help improve the symptoms of dementia for some people. These medications work by increasing neurotransmitters in the brain. Jun 13, 2023 · In June 2021, the Food and Drug Administration approved Aduhelm (aducanumab) as another option to treat Alzheimer’s disease. Aduhelm is the first new drug approved for the disease since 2003 as well as the first to specifically target amyloid-beta, the protein researchers widely believe to play a role in the development of Alzheimer's. .