Alzheimer Disease — Effect of Blueberry Supplementation on Alzheimer's Biomarkers
Citation(s)
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Jeong HR, Jo YN, Jeong JH, Kim HJ, Kim MJ, Heo HJ Blueberry (Vaccinium virgatum) leaf extracts protect against Abeta-induced cytotoxicity and cognitive impairment. J Med Food. 2013 Nov;16(11):968-76. doi: 10.1089/jmf.2013.2881. Epub 2013 Oct 11.
Miller MG, Hamilton DA, Joseph JA, Shukitt-Hale B Dietary blueberry improves cognition among older adults in a randomized, double-blind, placebo-controlled trial. Eur J Nutr. 2018 Apr;57(3):1169-1180. doi: 10.1007/s00394-017-1400-8. Epub 2017 Mar 10.
Ou Y, Hu H, Wang Z, Xu W, Tan L, et al Plasma neurofilament light as a longitudinal biomarker of neurodegeneration in Alzheimer's disease. Brain Science Advances. 2019;5(2):94-105.
Wang S, Cui Y, Wang C, Xie W, Ma L, Zhu J, Zhang Y, Dang R, Wang D, Wu Y, Wu Q Protective Effects of Dietary Supplementation with a Combination of Nutrients in a Transgenic Mouse Model of Alzheimer's Disease. PLoS One. 2015 Nov 25;10(11):e0143135. doi: 10.1371/journal.pone.0143135. eCollection 2015. Erratum In: PLoS One. 2015;10(12):e0146252. Cu, Yu [corrected to Cui, Yu].
Effect of Blueberry Supplementation on Alzheimer's Biomarkers
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
