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Obesidade: o papel das melanocortinas na regulação da homeostasia energética

Title
Obesidade: o papel das melanocortinas na regulação da homeostasia energética
Type
Article in National Scientific Journal
Year
2011
Authors
Rodrigues, Adriana
(Author)
FCNAUP
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Almeida, Henrique
(Author)
FCNAUP
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Gouveia, Alexandra
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Journal
Vol. 6 No. 1
Pages: 76-86
ISSN: 1646-3439
Scientific classification
FOS: Medical and Health sciences > Health sciences
CORDIS: Health sciences
Other information
Resumo (PT): Nas últimas décadas a obesidade revelou-se um dos maiores problemas de saúde pública dos países desenvolvidos, sendo um factor de risco para várias doenças como diabetes tipo 2, doenças cardiovasculares e alguns tipos de cancro. Um dos mecanismos directamente relacionados com a regulação da homeostasia energética integra o sistema das melanocortinas1, também envolvido noutros processos biológicos como pigmentação e esteroidogénese2-3. Ao nível do sistema nervoso central (SNC), o sistema das melanocortinas é um dos mecanismos neuropeptidérgicos melhor caracterizados no que diz respeito ao controlo da ingestão alimentar. Para além desta acção central, as melanocortinas actuam também numa variedade de tecidos periféricos, incluindo o tecido adiposo. O conhecimento da acção periférica das melanocortinas tem vindo a aumentar com novos dados promissores ao desenvolvimento de terapias eficazes no tratamento da obesidade. É nosso objectivo apresentar uma revisão detalhada sobre o papel das melanocortinas na regulação da homeostasia energética recorrendo a evidências e trabalhos científicos publicados nos últimos anos.
Abstract (EN): Obesity is one of the greatest public health problems of the 21st century, with major consequences in diabetes, cardiovascular diseases and cancer. It is well known that the melanocortin system is an important regulator of body energy homeostasis1. In fact, the role of the melanocortin system in the regulation of energy balance at the central nervous system has been extensively studied, although melanocortins are also involved in other biological processes such as pigmentation or steroidogenesis2-3. In addition, it has also been demonstrated that melanocortins act in a variety of peripheral tissues, including the adipose tissue. The study of peripheral melanocortin effects has been increased and challenges the MCRs as promising targets for the pharmacological treatment of obesity. The role of melanocortins on energy homeostasis is reviewed in this manuscript which describes up to date scientific data.
Language: Portuguese
Type (Professor's evaluation): Scientific
Contact: agouveia@med.up.pt
License type: Click to view license CC BY-NC
Documents
File name Description Size
A10_076-086_RPEDM-Rev11_#2 198.79 KB
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