Battling Alzheimer’s disease

Posted: April 4th, 2019

Battling Alzheimer’s disease:
Alzheimer’s disease is a devastating illness that robs individuals of their memories and abilities as brain cells progressively degenerate and die. It is the most common cause of dementia among older adults. While there is currently no cure for Alzheimer’s, research is advancing our understanding of the disease and identifying potential ways to delay its progression or prevent its onset. This article will explore the latest strategies for battling Alzheimer’s disease through lifestyle modifications, medical treatments, and research initiatives aimed at finding a cure.
Lifestyle Changes to Reduce Risk
Several lifestyle factors are associated with either increasing or decreasing the risk of Alzheimer’s disease. Adopting a brain-healthy lifestyle through diet, exercise, social engagement, and cognitive stimulation may help preserve brain function as we age.
Diet: A healthy, balanced diet rich in fruits and vegetables, whole grains, healthy fats like olive oil, and lean proteins is linked to better brain health. The Mediterranean diet in particular has shown promise in reducing Alzheimer’s risk. Foods to emphasize include berries, walnuts, fatty fish like salmon, and dark leafy greens.
Exercise: Physical activity boosts blood flow to the brain and releases proteins that support neuron health and connectivity. Studies show that regular exercise, even just walking for 30 minutes daily, is associated with a reduced risk of cognitive decline and Alzheimer’s.
Social engagement: Staying socially and intellectually active helps strengthen cognitive reserve, giving the brain extra resilience against damage. Pursue social activities, volunteer work, learning new skills, and spending time with family and friends.
Cognitive stimulation: Mental challenges like learning a new language, taking an art class, playing games like bridge or chess, or doing puzzles and crosswords may help reduce Alzheimer’s risk by building additional neural connections in the brain.
Stress management: High levels of stress can negatively impact brain health over time. Practicing relaxation techniques like yoga, meditation, deep breathing, and getting enough sleep can help counteract stress’s effects.
Medical Treatments
While there is no cure for Alzheimer’s yet, certain medications are FDA-approved to temporarily slow its progression in mild to moderate cases by increasing acetylcholine levels in the brain. These include:
Donepezil (Aricept): This is one of the most commonly prescribed drugs. It works by inhibiting the breakdown of acetylcholine.
Rivastigmine (Exelon): Like donepezil, it inhibits the breakdown of acetylcholine but also weakly inhibits its production.
Galantamine (Razadyne): This medication enhances the effects of acetylcholine in the brain.
Memantine (Namenda): The only non-acetylcholinesterase inhibitor approved for Alzheimer’s. It regulates glutamate levels and may protect brain cells from excitotoxicity.
Combination therapy using two medications together, such as donepezil and memantine, may provide additional benefits over monotherapy in moderate to severe cases. Other prescription drugs are being studied for their potential to reduce Alzheimer’s risk or slow its progression at earlier stages before symptoms appear.
Research Initiatives
Significant research efforts are underway to better understand Alzheimer’s causes and identify new treatment targets. Some promising areas of focus include:
Amyloid-beta and tau proteins: Abnormal clumping of these proteins in the brain is a hallmark of Alzheimer’s pathology. Investigations center on ways to clear these toxic protein aggregates or prevent their formation.
Lifestyle interventions: Large, long-term clinical trials are exploring the impact of diet, exercise, cognitive training, and combined lifestyle modifications on Alzheimer’s prevention.
Vaccines: Some studies involve immunizing against amyloid-beta or tau to stimulate their removal from the brain. Challenges remain around safety and efficacy.1
Neuroprotection: Research aims to identify drugs that protect neurons from degeneration and cell death through various mechanisms like reducing oxidative stress and inflammation.2
Risk factors: Genetic and vascular factors are being probed to gain insights into disease mechanisms and potential prevention strategies. The role of cardiovascular health, diabetes, and other conditions is an active area of study.3
Biomarkers: Identifying proteins, genes, or other biomarkers that reliably indicate risk, progression, or response to therapies could revolutionize early detection and drug development.4
Regenerative medicine: Stem cell research holds promise for regenerating lost neurons or stimulating endogenous repair mechanisms in the brain. Challenges lie in safely delivering cells to the brain.5
Conclusion
Significant strides have been made in understanding Alzheimer’s disease, but more work is urgently needed to develop effective prevention and treatment options. Adopting a brain-healthy lifestyle and continuing to support research through donations and participation in clinical trials are important ways to take action against this devastating illness until disease-modifying therapies and a cure are found. With further discoveries, Alzheimer’s may someday be a preventable and treatable condition.
References
Cummings, J., et al. (2019). Alzheimer’s disease drug development pipeline: 2019. Alzheimer’s & Dementia: Translational Research & Clinical Interventions, 5, 272-293. https://doi.org/10.1016/j.trci.2019.05.007
Zheng, W. H., & Koo, E. H. (2006). The amyloid precursor protein: beyond amyloid. Molecular Neurodegeneration, 1(1), 1-5. https://doi.org/10.1186/1750-1326-1-5
Barnes, D. E., & Yaffe, K. (2011). The projected effect of risk factor reduction on Alzheimer’s disease prevalence. The Lancet Neurology, 10(9), 819-828. https://doi.org/10.1016/S1474-4422(11)70072-2
Jack, C. R., Jr, et al. (2018). NIA-AA Research Framework: Toward a biological definition of Alzheimer’s disease. Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association, 14(4), 535–562. https://doi.org/10.1016/j.jalz.2018.02.018
Blurton-Jones, M., & Tuszynski, M. H. (2002). Neural stem cells: a new therapy for neurological disease? Nature Reviews Neuroscience, 3(6), 499-503. https://doi.org/10.1038/nrn867