We examined neuroprotective effects of naturally occurring biflavonoids on oxidative stress-induced and amyloid beta peptide-induced cell death in neuronal cells. Among the nine biflavonoids tested, amentoflavone, ginkgetin, and isoginkgetin exhibited strong neuroprotection against cytotoxic insults induced by oxidative stress and amyloid beta, suggesting their therapeutic potential against neurodegenerative diseases, including ischemic stroke and Alzheimer's disease.
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http://dx.doi.org/10.1016/j.bmcl.2005.05.078 | DOI Listing |
J Neurochem
January 2025
Department of Neurology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan.
Misfolding and accumulation of amyloid-β (Aβ) in the brains of patients with Alzheimer's disease (AD) lead to neuronal loss through various mechanisms, including the downregulation of eukaryotic elongation factor 2 (EEF2) protein synthesis signaling. This study investigated the neuroprotective effects of indole and coumarin derivatives on Aβ folding and EEF2 signaling using SH-SY5Y cells expressing Aβ-green fluorescent protein (GFP) folding reporter. Among the tested compounds, two indole (NC009-1, -6) and two coumarin (LM-021, -036) derivatives effectively reduced Aβ misfolding and associated reactive oxygen species (ROS) production.
View Article and Find Full Text PDFChin Med
January 2025
Aging and Metabolism Research Group, Korea Food Research Institute, Wanju‑gun, 55365, Republic of Korea.
Background: Magnolia kobus DC (MO), as a plant medicine, has been reported to have various physiological activities, including neuroprotective, anti-inflammatory, and anti-diabetic effects. However, vascular protective effects of MO remain incompletely understood. In this study, we evaluated the vascular protective effect of MO against ferroptosis in a carotid artery ligation (CAL)-induced neointimal hyperplasia mouse model and in aortic thoracic smooth muscle A7r5 cells.
View Article and Find Full Text PDFCell Commun Signal
January 2025
Department of Anesthesiology, Cheeloo College of Medicine, Qilu Hospital (Qingdao), Shandong University, 758 Hefei Road, Qingdao, China.
Oxidative stress and neuroinflammation are recognized as key factors in the development of neurodegenerative diseases, yet effective interventions and biomarkers to address oxidative stress and neuroinflammation in these conditions are limited. Uric acid (UA), traditionally associated with gout, is now gaining prominence as a potential target in neurodegenerative diseases. Soluble UA stands out as one of the most vital antioxidant compounds produced by the human body, accounting for up to 55% of the extracellular capacity to neutralize free radicals.
View Article and Find Full Text PDFJ Neuroinflammation
January 2025
Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA, 30322, USA.
Following recent advances in post-thrombectomy stroke care, the role of neuroinflammation and neuroprotective strategies in mitigating secondary injury has gained prominence. Yet, while neuroprotection and anti-inflammatory agents have re-emerged in clinical trials, their success has been limited. The neuroinflammatory response in cerebral ischemia is robust and multifactorial, complicating therapeutic approaches targeting single pathways.
View Article and Find Full Text PDFBMC Neurosci
January 2025
Laboratory of Veterinary Internal Medicine, Department of Clinical Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, 08826, Republic of Korea.
Microglia/macrophages participate in the development of and recovery from experimental autoimmune encephalomyelitis (EAE), and the macrophage M1 (pro-inflammatory)/M2 (anti-inflammatory) phase transition is involved in EAE disease progression. We evaluated the efficacy of crisdesalazine (a novel microsomal prostaglandin E2 synthase-1 inhibitor) in an EAE model, including its immune-regulating potency in lipopolysaccharide-stimulated macrophages, and its neuroprotective effects in a macrophage-neuronal co-culture system. Crisdesalazine significantly alleviated clinical symptoms, inhibited inflammatory cell infiltration and demyelination in the spinal cord, and altered the phase of microglial/macrophage and regulatory T cells.
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