Atividade da superóxido dismutase em modelo de animal com lesão Hipocampal induzida por peptideo Aβ1-42 e suplementados com melatonina/ Peroxide activity dismutes in animal model with Hypical lesion induced by peptide Aβ1-42 and supplemented with melatonine

Welton Daniel Nogueira Godinho, Isabele Dutra de Aguiar, Francisco Sérgio Lopes Vasconcelos Filho, Guilherme Nizan Silva Almeida, Bruno Felipe da Silva, Israel Barbosa de Albuquerque, Vânia Marilande Ceccatto, Paula Matias Soares

Abstract


 A Doença de Alzheimer (DA) caracteriza-se pela neurodegeneração progressiva e irreversível decorrente de lesões moleculares decorrentes do acúmulo de placas neuríticas carregadas de β-amiloide e emaranhados neurofibrilares causando perda progressiva da memória e das funções cognitivas. Portanto, o objetivo deste estudo foi identificar alterações na atividade da superóxido dismutase no hipocampo de ratos induzidos ao Alzheimer e suplementados via gavagem por melatonina. Os animais foram divididos em cinco grupos (N=12): Grupo 1: Controle (não operado) que receberam veículo por gavagem (CONTROLE-SALINA, CS) , Grupo 2: animais SHAM (Operação de Alzheimer) que receberam a injeção do veículo de diluição de melatonina (SHAM-SALINA,SS), Grupo 3: animais SHAM que receberam melatonina (SHAN-MELATONINA, SM), Grupo 4: animais induzidos ao Alzheimer que receberam somente o veículo (ALZHEIMER- SALINA, AS), Grupo 5: animais induzidos ao Alzheimer que receberam melatonina (ALZHEIMER- MELATONINA, AM) e por meio de testes de equilíbrio redox, analisou-se a atividade da superóxido dismutase (SOD) verificando um aumento na defesa antioxidante, inclusive na suplementação do grupo 3. Conclui-se que a Melatonina pode melhorar as defesas antioxidantes em resposta à Doença de Alzheimer.


Keywords


Alzheimer,Demência, Melatonina e Superóxido Dismutase.

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DOI: https://doi.org/10.34117/bjdv6n10-328

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