Alzheimer's disease (AD) is a multifactorial health problem widespread over the world. Regarding the historical importance of the alkaloids in the central nervous system pharmacology they remain as promising drug candidates against AD. Seven alkaloids from Amaryllidaceae and Fabaceae were evaluated , and targets related to the AD pathophysiology. Erythraline and erysodine showed the greatest potential compared to Memantine, a drug currently used in AD therapy, by delaying the Aβ-induced paralysis in the transgenic strain CL2006 , an alternative model to assess the impairment of beta-amyloid peptide deposition. The inhibition of the acetylcholinesterase was observed for the first time for alkaloids; however Lycorine was the most active. Docking simulation contributed to comprehend this potential by showing a hydrophobic interaction between acetylcholinesterase and Lycorine in the amino acid residue TRP 84 as well as hydrogen bonds with TRY 121 and ASP 72.
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http://dx.doi.org/10.1080/14786419.2020.1727471 | DOI Listing |
Narra J
December 2024
Department of Nutrition, Faculty of Medicine Science, Universitas Brawijaya, Malang, Indonesia.
Velvet bean is a native Indonesian legume containing L-dopa, yet it remains underutilized. The aim of this study was to analyze the effects of different types of tempe (soybean, velvet bean, and their combination) on cognitive function, brain histology, dopamine levels, and serum β-amyloid in rats, as well as to identify the parameters most influencing cognitive function, including brain mass and volume, hippocampal neuron count, and dopamine and β-amyloid levels. An experimental study was conducted using a completely randomized design with one factor: the protein source of diet.
View Article and Find Full Text PDFPhytother Res
January 2025
Department of Pharmaceutical Sciences, Hemwati Nandan Bahuguna Garhwal University (A Central University), Srinagar, Uttarakhand, India.
Alzheimer's disease (AD) is a type of neurodegenerative illness in which β-amyloid (Aβ) and tau protein accumulate in neurons in the form of tangles. The pathophysiological pathway of AD consists of Aβ-amyloid peptides, tau proteins, and oxidative stress in neurons and increased neuro-inflammatory response. Food and Drug Administration in the United States has authorized various drugs for the effective treatment of AD, which include galantamine, rivastigmine, donepezil, memantine, sodium oligomannate, lecanemab, and aducanumab.
View Article and Find Full Text PDFJ Alzheimers Dis
January 2025
Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Background: The amyloid cascade hypothesis still dominates in Alzheimer's disease (AD), and the acceleration of the clearance efficiency of amyloid-β (Aβ) has been always considered as an effective treatment option to slow the occurrence and progression of AD.
Objective: This study aims to explore the role of zkscan3 and its related pathways in AD of the microglia-mediated pathogenesis, and whether the combined effect of drugs can exert neuroprotective function.
Methods: N9 mouse microglia and HT-22 mouse hippocampal neurons were randomly divided into 6 groups, qRT-PCR technique was used to detect the gene expression level of zkscan3 and the genes related to lysosome generation and function.
Arq Neuropsiquiatr
January 2025
Second Medical University, School of Clinical Medicine, Weifang Shandong Province, China.
Alzheimer's disease (AD), diabetic cognitive impairment (DCI), and vascular dementia (VD) are considered the most common causes of severe cognitive impairment in clinical practice. Numerous factors can influence their progression, and many studies have recently revealed that metabolic disorders play crucial roles in the progression of cognitive impairment. Mounting evidence indicate that the regulation of lipid metabolism is a major factor in maintaining brain homeostasis.
View Article and Find Full Text PDFSci Adv
January 2025
Centre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK.
Several human disorders, including Alzheimer's disease (AD), are characterized by the aberrant formation of amyloid fibrils. In many cases, the amyloid core is flanked by disordered regions, known as fuzzy coat. The structural properties of fuzzy coats, and their interactions with their environments, however, have not been fully described to date.
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