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Articles 1 - 9 of 9
Full-Text Articles in Nervous System Diseases
Apigenin Alleviates Autistic-Like Stereotyped Repetitive Behaviors And Mitigates Brain Oxidative Stress In Mice, Petrilla Jayaprakash, Dmytro Isaev, Keun-Hang Susan Yang, Rami Beiram, Murat Oz, Bassem Sadek
Apigenin Alleviates Autistic-Like Stereotyped Repetitive Behaviors And Mitigates Brain Oxidative Stress In Mice, Petrilla Jayaprakash, Dmytro Isaev, Keun-Hang Susan Yang, Rami Beiram, Murat Oz, Bassem Sadek
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Studying the involvement of nicotinic acetylcholine receptors (nAChRs), specifically α7-nAChRs, in neuropsychiatric brain disorders such as autism spectrum disorder (ASD) has gained a growing interest. The flavonoid apigenin (APG) has been confirmed in its pharmacological action as a positive allosteric modulator of α7-nAChRs. However, there is no research describing the pharmacological potential of APG in ASD. The aim of this study was to evaluate the effects of the subchronic systemic treatment of APG (10–30 mg/kg) on ASD-like repetitive and compulsive-like behaviors and oxidative stress status in the hippocampus and cerebellum in BTBR mice, utilizing the reference drug aripiprazole (ARP, 1 …
Acute And Chronic Central Nervous System Oxidative Stress/Toxicity During Hyperbaric Oxygen Treatment Of Subacute And Chronic Neurological Conditions, Paul G. Harch, Stacey Rhodes
Acute And Chronic Central Nervous System Oxidative Stress/Toxicity During Hyperbaric Oxygen Treatment Of Subacute And Chronic Neurological Conditions, Paul G. Harch, Stacey Rhodes
School of Medicine Faculty Publications
INTRODUCTION: Oxygen toxicity has been defined as acute central nervous system (CNS), acute pulmonary, and chronic pulmonary oxygen toxicity. This study identifies acute and chronic CNS oxygen toxicity under 2.0 atmospheres absolute (ATA) pressure of oxygen. Methods: The authors' medical records from September 29, 1989 to January 20, 2023 and correspondence to the authors (9/1994 to 1/20.2023) from patients with signs and/or symptoms historically identified as acute CNS oxygen toxicity and those with neurological deterioration receiving hyperbaric oxygen for neurological conditions were reviewed. Acute cases were those occurring with ≤ 5 HBOTs and chronic cases > 5 HBOTs. Chronic cases were …
Oxidative Stress And Ion Channels In Neurodegenerative Diseases, Razan Orfali, Adnan Z. Alwatban, Rawan S. Orfali, Liz Lau, Noble Chea, Abdullah M. Alotaibi, Young-Woo Nam, Miao Zhang
Oxidative Stress And Ion Channels In Neurodegenerative Diseases, Razan Orfali, Adnan Z. Alwatban, Rawan S. Orfali, Liz Lau, Noble Chea, Abdullah M. Alotaibi, Young-Woo Nam, Miao Zhang
Pharmacy Faculty Articles and Research
Numerous neurodegenerative diseases result from altered ion channel function and mutations. The intracellular redox status can significantly alter the gating characteristics of ion channels. Abundant neurodegenerative diseases associated with oxidative stress have been documented, including Parkinson’s, Alzheimer’s, spinocerebellar ataxia, amyotrophic lateral sclerosis, and Huntington’s disease. Reactive oxygen and nitrogen species compounds trigger posttranslational alterations that target specific sites within the subunits responsible for channel assembly. These alterations include the adjustment of cysteine residues through redox reactions induced by reactive oxygen species (ROS), nitration, and S-nitrosylation assisted by nitric oxide of tyrosine residues through peroxynitrite. Several ion channels have been directly …
Insights Into The Mechanisms Of Brain Endothelial Erythrophagocytosis, Jiahong Sun, Prema Vyas, Samar Mann, Annlia Paganini-Hill, Ane C. F. Nunes, Wei Ling Lau, David H. Cribbs, Mark J. Fisher, Rachita K. Sumbria
Insights Into The Mechanisms Of Brain Endothelial Erythrophagocytosis, Jiahong Sun, Prema Vyas, Samar Mann, Annlia Paganini-Hill, Ane C. F. Nunes, Wei Ling Lau, David H. Cribbs, Mark J. Fisher, Rachita K. Sumbria
Pharmacy Faculty Articles and Research
The endothelial cells which form the inner cellular lining of the vasculature can act as non-professional phagocytes to ingest and remove emboli and aged/injured red blood cells (RBCs) from circulation. We previously demonstrated an erythrophagocytic phenotype of the brain endothelium for oxidatively stressed RBCs with subsequent migration of iron-rich RBCs and RBC degradation products across the brain endothelium in vivo and in vitro, in the absence of brain endothelium disruption. However, the mechanisms contributing to brain endothelial erythrophagocytosis are not well defined, and herein we elucidate the cellular mechanisms underlying brain endothelial erythrophagocytosis. Murine brain microvascular endothelial cells (bEnd.3 …
In Vitro And In Vivo Effects Of Flavonoids On Peripheral Neuropathic Pain, Paramita Basu, Arpita Basu
In Vitro And In Vivo Effects Of Flavonoids On Peripheral Neuropathic Pain, Paramita Basu, Arpita Basu
Kinesiology and Nutrition Sciences Faculty Publications
Neuropathic pain is a common symptom and is associated with an impaired quality of life. It is caused by the lesion or disease of the somatosensory system. Neuropathic pain syndromes can be subdivided into two categories: central and peripheral neuropathic pain. The present review highlights the peripheral neuropathic models, including spared nerve injury, spinal nerve ligation, partial sciatic nerve injury, diabetes-induced neuropathy, chemotherapy-induced neuropathy, chronic constriction injury, and related conditions. The drugs which are currently used to attenuate peripheral neuropathy, such as antidepressants, anticonvulsants, baclofen, and clonidine, are associated with adverse side effects. These negative side effects necessitate the investigation …
A Bird's-Eye View Of The Multiple Biochemical Mechanisms That Propel Pathology Of Alzheimer's Disease: Recent Advances And Mechanistic Perspectives On How To Halt The Disease Progression Targeting Multiple Pathways., Caleb Vegh, Kyle Stokes, Dennis Ma, Darcy Wear, Jerome Cohen, Sidhartha D. Ray, Siyaram Pandey
A Bird's-Eye View Of The Multiple Biochemical Mechanisms That Propel Pathology Of Alzheimer's Disease: Recent Advances And Mechanistic Perspectives On How To Halt The Disease Progression Targeting Multiple Pathways., Caleb Vegh, Kyle Stokes, Dennis Ma, Darcy Wear, Jerome Cohen, Sidhartha D. Ray, Siyaram Pandey
Touro College of Pharmacy (New York) Publications and Research
Neurons consume the highest amount of oxygen, depend on oxidative metabolism for energy, and survive for the lifetime of an individual. Therefore, neurons are vulnerable to death caused by oxidative-stress, accumulation of damaged and dysfunctional proteins and organelles. There is an exponential increase in the number of patients diagnosed with neurodegenerative diseases such as Alzheimer’s (AD) as the number of elderly increases exponentially. Development of AD pathology is a complex phenomenon characterized by neuronal death, accumulation of extracellular amyloid-β plaques and neurofibrillary tangles, and most importantly loss of memory and cognition. These pathologies are most likely caused by mechanisms including …
Changes In The Testes Following Spinal Cord Injury And The Attenuating Effects Of Licofelone, Ryan Fortune
Changes In The Testes Following Spinal Cord Injury And The Attenuating Effects Of Licofelone, Ryan Fortune
Dissertations & Theses (Open Access)
Spinal cord injury is a devastating disease that researchers have had very limited success in treating. In addition to interrupted innervation, spinal cord injury causes pathologic changes in a multitude of organ systems. Male infertility is one such complication that is particularly devastating because the patient population is predominantly young men. Our lab has previously shown that the blood testis barrier breaks down after spinal cord injury. This dissertation shows the local metabolomic and mRNA changes that spinal cord injury causes within the testes using a Sprague Dawley rat model, including the elevation in eicosanoids, increased oxidative stress, chronically elevated …
Elevated L-Lactate Drives Major Cellular Pathologies Associated With Neurodegeneration, Jessica Behnke
Elevated L-Lactate Drives Major Cellular Pathologies Associated With Neurodegeneration, Jessica Behnke
Dissertations, Master's Theses and Master's Reports
Within the past few decades, lactate research has expanded from initial findings deeming lactate as a dead-end metabolic product to recognition of lactate’s role as a potential energy substrate in the CNS. Due to the tight relationship between lactate and energy metabolism, interest in the scientific community has been mounting around associations among metabolic dysregulation, elevated lactate and neurodegenerative states such as Alzheimer’s, Parkinson’s, amyotrophic lateral sclerosis, ischemia/reperfusion (AD, PD, ALS, I/R injuries), and physiological aging, however underlying cellular mechanisms and/or facilitators for neuronal degeneration pathologies still remain unknown. Here, we tested several hypotheses that implicate L-lactate to various neurodegenerative …
Increased Glutathione Metabolic Defense Capabilities In Cultured Alzheimer's Diseased Lymphoblast Cell Lines, Collin M. Shaw
Increased Glutathione Metabolic Defense Capabilities In Cultured Alzheimer's Diseased Lymphoblast Cell Lines, Collin M. Shaw
Dissertations and Theses
The hypothesis to be tested states that the pathology of Alzheimer's disease (AD) involves elevated levels of oxidative stress, resulting in elevated levels of cellular oxidative defense mechanisms. If the premise is true, than AD pathologically afflicted cells should have a higher demand for glutathione (GSH) as an innate oxidative defense mechanism hence; greater GSH concentrations, increased GSH resynthesis capabilities, and increased levels of cystathionine gamma-lyase (CNase). Alzheimer diseased and age matched control lymphoblast cells, obtained from OHSU's Oregon Brain Aging Study, were cultured, and GSH biochemistry was subsequently evaluated. GSH was depleted by exposing cells to the GSH depleting …