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Mol Neurobiol ; 61(9): 6366-6382, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38296901

RESUMEN

Obesity causes inflammation in the adipose tissue and can affect the central nervous system, leading to oxidative stress and mitochondrial dysfunction. Therefore, it becomes necessary to seek new therapeutic alternatives. Gold nanoparticles (GNPs) could take carnitine to the adipose tissue, thus increasing fatty acid oxidation, reducing inflammation, and, consequently, restoring brain homeostasis. The objective of this study was to investigate the effects of GNPs associated with carnitine on the neurochemical parameters of obesity-induced mice. Eighty male Swiss mice that received a normal lipid diet (control group) or a high-fat diet (obese group) for 10 weeks were used. At the end of the sixth week, the groups were divided for daily treatment with saline, GNPs (70 µg/kg), carnitine (500 mg/kg), or GNPs associated with carnitine, respectively. Body weight was monitored weekly. At the end of the tenth week, the animals were euthanized and the mesenteric fat removed and weighed; the brain structures were separated for biochemical analysis. It was found that obesity caused oxidative damage and mitochondrial dysfunction in brain structures. Treatment with GNPs isolated reduced oxidative stress in the hippocampus. Carnitine isolated decreased the accumulation of mesenteric fat and oxidative stress in the hippocampus. The combination of treatments reduced the accumulation of mesenteric fat and mitochondrial dysfunction in the striatum. Therefore, these treatments in isolation, become a promising option for the treatment of obesity.


Asunto(s)
Encéfalo , Carnitina , Modelos Animales de Enfermedad , Oro , Nanopartículas del Metal , Obesidad , Estrés Oxidativo , Animales , Carnitina/farmacología , Carnitina/administración & dosificación , Carnitina/uso terapéutico , Oro/farmacología , Masculino , Obesidad/tratamiento farmacológico , Obesidad/patología , Obesidad/complicaciones , Ratones , Estrés Oxidativo/efectos de los fármacos , Encéfalo/efectos de los fármacos , Encéfalo/metabolismo , Encéfalo/patología , Dieta Alta en Grasa , Mitocondrias/efectos de los fármacos , Mitocondrias/metabolismo , Lesiones Encefálicas/tratamiento farmacológico , Lesiones Encefálicas/patología , Lesiones Encefálicas/metabolismo , Peso Corporal/efectos de los fármacos
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