RESUMEN
This study aimed to evaluate the effect of Cynara cardunculus leaf ethanol extract on inflammatory and oxidative stress parameters in the hypothalamus, prefrontal cortex, hippocampus, striatum, cerebral cortex and liver of high-fat diet-induced obese mice. Food intake, body weight, visceral fat weight, and liver weight were also evaluated. Male Swiss mice were divided into control (low-fat purified diet) and obese (high-fat purified diet) groups. After 6 weeks, mice were divided into control + saline, control + C. cardunculus leaf ethanol extract, obese + saline, obese + C. cardunculus leaf ethanol extract. Cynara cardunculus leaf ethanol extract (1600 mg/kg/day) or saline was administered orally for 4 weeks. Brain structures (hypothalamus, hippocampus, prefrontal cortex, striatum and cerebral cortex) and liver were removed. Treatment with C. cardunculus leaf ethanol extract did not affect body weight but did reduce visceral fat. Obesity can cause inflammation and oxidative stress and increase the activity of antioxidant enzymes in brain structures. Treatment with ethanolic extract of C. cardunculus leaves partially reversed the changes in inflammatory damage parameters and oxidative damage parameters and attenuated changes in the antioxidant defense. The C. cardunculus leaf ethanol extract benefited from the brains of obese animals by partially reversing the changes caused by the consumption of a high-fat diet and the consequent obesity. These results corroborate those of studies indicating that the C. cardunculus leaf ethanol extract can contribute to the treatment of obesity.
Asunto(s)
Cynara scolymus , Cynara , Animales , Antioxidantes/farmacología , Cynara/química , Cynara scolymus/química , Dieta Alta en Grasa/efectos adversos , Modelos Animales de Enfermedad , Etanol/efectos adversos , Masculino , Ratones , Obesidad/tratamiento farmacológico , Extractos Vegetales/farmacología , Extractos Vegetales/uso terapéutico , Hojas de la Planta/químicaRESUMEN
A COVID-19, doença causada pelo novo Coronavírus, alastrou-se rapidamente por todos os continentes promovendo uma pandemia. Estudos relacionados à fisiopatologia da COVID-19 demonstraram que o vírus SARS-CoV-2 invade células da mucosa intestinal, sendo eliminado nas fezes, alertando para possibilidade da transmissão da doença por via fecal-oral. A presença do vírus nas fezes aventou também a expectativa de utilizar essa amostra biológica para fins diagnósticos. Nesta revisão, resumimos os estudos recentes relacionados à investigação da presença do RNA do SARS-CoV-2 nas fezes de pacientes com COVID-19.