Histomorphological evaluations on the frontal cortex extrapyramidal cell layer following administration of N-Acetyl cysteine in aluminum induced neurodegeneration rat model
| Autor: | Memudu Adejoke Elizabeth, Osahon Roli Itohan, Pantong Samson |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Male Prefrontal Cortex Pharmacology medicine.disease_cause Biochemistry Neuroprotection Antioxidants 03 medical and health sciences Cellular and Molecular Neuroscience symbols.namesake Necrosis 0302 clinical medicine Alzheimer Disease Glial Fibrillary Acidic Protein Chromatolysis medicine Neurotoxin Aluminum Chloride Animals Gliosis Rats Wistar Extrapyramidal Tracts N-acetyl cysteine (NAC) Neurons Chemistry Neurodegeneration Neurodegenerative Diseases medicine.disease Symptomatic relief Acetylcysteine Rats Oxidative Stress 030104 developmental biology Neuroprotective Agents Astrocytes Nissl body symbols Astrocytes and oxidative stress Original Article Neurology (clinical) medicine.symptom 030217 neurology & neurosurgery Oxidative stress Aluminum |
| Zdroj: | Metabolic Brain Disease |
| ISSN: | 1573-7365 |
| Popis: | Aluminum is a potent neurotoxin used in animal models of neurodegenerative diseases like Alzheimer’s disease (AD), in which oxidative stress mediates tissue pathogenesis in vivo. N-acetyl cysteine (NAC) is a glutathione precursor with reported antioxidant and neuroprotective potentials. Recent therapy for combating AD is known to provide only symptomatic relief thus necessitating the discovery of new drugs and their mechanism of action. This study was aimed to demonstrate the in vivo neuroprotective effect of NAC against aluminum (Al3+)-induced neuro-degeneration in rats (a model for AD). Twenty- five (25) adult male Wistar rats used for this study were divided into 5 groups: Group A = Control, B = Aluminum chloride (200 mg/kg), C = 1000 mg/kg of NAC + Aluminum chloride (200 mg/kg), D = 1000 mg/kg of NAC, E = Aluminum chloride (200 mg/kg) was orally administered daily for 3 weeks and discontinued for one week. Frontal Cortex harvested for histological analysis using Haematoxylin and Eosin stain, Cresyl Fast Violet stain for Nissl granules and Glial fibrillary acidic protein immunohistochemistry specific for astrocytes. Aluminum significantly induced oxidative stress, coupled with marked neurons necrosis, chromatolysis and gliosis in the frontal cortex, upon NAC administration, there was neuro anti-inflammatory response as seen in the significant reduction in astrocytes expression, neuronal cell death and Nissl body aggregation which attenuates neuropathological deficits induced by Al3+. It was shown that aluminum is a neurotoxin mediating AD-like oxidative stress, NAC has a therapeutic potential associated with its potent in vivo interaction with astrocytes in response to Al3+ neuro-inflammation seen in positive expression of Nissl granules and glial cells in addition to possibility of endogenous glutathione neuroprotection after withdrawal of stress mediator in neurodegeneration. |
| Databáze: | OpenAIRE |
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