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Chinese Journal of Natural Medicines (English Ed.) ; (6): 911-919, 2014.
Artículo en Inglés | WPRIM | ID: wpr-812185

RESUMEN

Modified Si-Miao-San (mSMS) is composed of Rhizoma Coptidis, Cortex Phellodendri, Rhizoma Coptidis Semen Coicis and Atractylodes Rhizome. The prescription is used for the management of diabetes and insulin resistance in the clinic. This study aims to investigate its regulation of glucose disposal in adipocytes. Differentiated 3T3-L1 adipocytes were stimulated with conditioned medium derived from activated macrophages to induce insulin resistance and observed the effects of Mac-CM on insulin-mediated glucose uptake along the insulin receptor substrate-1/PI3K/Akt signaling pathway. Moreover, its regulation of AMPK phosphorylation was also investigated. mSMS enhanced AMPK phosphorylation and promoted basal glucose uptake in adipocytes; mSMS inhibited NF-κB activation by reducing P65 phosphorylation and improved insulin-stimulated IRS-1 tyrosine and Akt phosphorylation, leading to the restoration of insulin-mediated glucose uptake when cells were exposed to inflammatory stimulation. These beneficial effects were diminished in the presence of the AMPK inhibitor compound C. mSMS positively regulated AMPK activity, and this action contributed to improving insulin PI3K signaling by the beneficial regulation of IRS-1 function through inhibition of inflammation in adipocytes.


Asunto(s)
Animales , Ratones , Células 3T3-L1 , Adenosina Monofosfato , Metabolismo , Adenilato Quinasa , Metabolismo , Adipocitos , Metabolismo , Atractylodes , Coix , Coptis , Diabetes Mellitus , Quimioterapia , Metabolismo , Medicamentos Herbarios Chinos , Farmacología , Usos Terapéuticos , Glucosa , Metabolismo , Transportador de Glucosa de Tipo 4 , Metabolismo , Inflamación , Metabolismo , Insulina , Metabolismo , Proteínas Sustrato del Receptor de Insulina , Metabolismo , Resistencia a la Insulina , FN-kappa B , Metabolismo , Phellodendron , Fosfatidilinositol 3-Quinasas , Metabolismo , Fosforilación , Fitoterapia , Proteínas Proto-Oncogénicas c-akt , Metabolismo , Transducción de Señal
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