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Doctoral Thesis
DOI
https://doi.org/10.11606/T.42.2017.tde-10052017-143646
Document
Author
Full name
Lucas Maceratesi Enjiu
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2017
Supervisor
Committee
Rosa Neto, José Cesar (President)
Caperuto, Érico Chagas
Colquhoun, Alison
Gonçalves, Daniela Caetano
Lancha Junior, Antonio Herbert
Title in Portuguese
Efeito da administração de metformina e β-alanina na prevenção da inflamação hipotalâmica associada ao câncer.
Keywords in Portuguese
β-alanina
Anorexia
Câncer
Inflamação
Metformina
Abstract in Portuguese
O câncer é um problema de saúde pública mundial e pode causar anorexia. Mediadores inflamatórios desempenham importante papel no desenvolvimento da anorexia relacionada à doença. Estudos realizados com carnosina (β-alanina-L-histidina) e metformina demonstraram eficiente ação anti-inflamatória e antitumoral. O objetivo deste estudo foi analisar a ação da metformina e β-alanina no controle do crescimento tumoral e produção das citocinas, bem como a secreção dos neuropeptídios. Foram utilizados 25 camundongos machos, divididos em grupo controle (C), controle tumor (CT), tumor suplementado com β-alanina (TB), tumor administrado com metformina (TM) e tumor administrado com metformina+β-alanina (TMB). TM demonstrou redução no peso e ingestão alimentar comparado aos C e TMB. TB apresentou maior massa tumoral que os demais grupos. Ainda, o CT apresentou maior expressão da inflamação em relação aos demais grupos. Concluímos que os tratamentos utilizados demonstraram um potencial efeito benéfico frente ao tumor, sendo uma estratégia coadjuvante para o tratamento do câncer.
Title in English
Effect of administration of metformin and β-alanine in the prevention of hypothalamic inflammation associated with cancer.
Keywords in English
β-alanine
Anorexia
Cancer
Inflammation
Metformin
Abstract in English
Cancer is a worldwide public health problem and can cause anorexia. Inflammatory mediators play an important role in the development of disease-related anorexia. Studies with carnosine (β-alanine-L-histidine) and metformin have demonstrated effective anti-inflammatory and antitumor action. The objective of this study was to analyze the action of metformin and β-alanine without control of tumor growth and cytokine production, as well as a neuropeptide secretion. Twenty-five male mice, tumor control (CT), tumor-supplemented with β-alanine (TB), tumor administered with metformin (TM) and tumor with metformin + β-alanine (TMB) were used. TM demonstrated a reduction in weight and food intake compared to C and TMB. TB presented greater tumor mass than the other groups. Still, CT showed a greater expression of inflammation in relation to the other groups. We conclude that the treatments used demonstrated a potential beneficial effect against the tumor, being a supporting strategy for the treatment of cancer.
 
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Publishing Date
2017-05-10
 
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