Paeoniflorin, a constituent of Kami-shoyo-san, suppresses blood glucose levels in postmenopausal diabetic mice by promoting the secretion of estradiol from adipocytes.

La peoniflorina, un constituyente de Kami-shoyo-san, suprime los niveles de glucosa en sangre en ratones diabéticos posmenopáusicos al promover la secreción de estradiol a partir de los adipocitos.

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ID: 276030
2022
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Abstract
Ovarian functional deterioration in women with climacteric disorders increases the prevalence of type 2 diabetes (T2D). Therefore, we revealed that paeoniflorin (PF), an ingredient of paeony root (PR), which is a constituent of Kami-shoyo-san (KS), promotes glucose uptake by increasing estradiol secretion from adipocytes. Adipocytes differentiated from 3T3-L1 cells were incubated in culture medium containing the extracts of KS, PR, KS excluding PR (KS-PR), or PF for 5 d at 37 °C and 5% CO. The estradiol and glucose concentrations in the medium were determined using enzyme-linked immunosorbent assay (ELISA). Next, PF (1 or 10 mg/kg) was subcutaneously injected into ovariectomized mice (12-week-old, ICR strain) once daily for 19 d to perform the glucose tolerance test and determine blood estradiol and adiponectin levels. The release of estradiol from 3T3-L1 adipocytes was significantly increased by KS, PR, KS-PR, and PF, and the increased estradiol level caused by KS was significantly decreased by excluding PF from KS (KS-PR). Glucose concentration in the medium was significantly decreased by KS and PF. In experiments, the 10 mg/kg PF-treated group showed significantly suppressed blood glucose levels at 0 and 30 min after d-glucose loading by intraperitoneal injection. These findings indicate that KS, which includes PR-containing PF as the main ingredient, may have the potential to prevent T2D caused by ovarian dysfunction in menopausal women by increasing estradiol secretion from adipocytes.
El deterioro funcional ovárico en mujeres con trastornos climatéricos incrementa la prevalencia de diabetes tipo 2 (DT2). Por consiguiente, revelamos que la paeoniflorina (PF), un componente de la raíz de peonía (PR), la cual forma parte de Kami-shoyo-san (KS), promueve la captación de glucosa mediante el aumento de la secreción de estradiol a partir de los adipocitos. Los adipocitos diferenciados a partir de células 3T3-L1 se incubaron en medio de cultivo con extractos de KS, PR, KS sin PR (KS-PR) o PF durante 5 d a 37 °C y 5 % de CO. Las concentraciones de estradiol y glucosa en el medio se determinaron mediante ensayo por inmunoabsorción ligado a enzimas (ELISA). A continuación, se inyectó PF (1 o 10 mg/kg) por vía subcutánea en ratones ovariectomizados (de 12 semanas de edad, cepa ICR) una vez al día durante 19 d para realizar la prueba de tolerancia a la glucosa y determinar los niveles sanguíneos de estradiol y adiponectina. La liberación de estradiol a partir de los adipocitos 3T3-L1 aumentó significativamente con KS, PR, KS-PR y PF, y el incremento en el nivel de estradiol inducido por KS disminuyó de manera significativa al excluir la PF de KS (KS-PR). La concentración de glucosa en el medio se redujo significativamente con KS y PF. En los experimentos, el grupo tratado con 10 mg/kg de PF mostró una supresión significativa de los niveles de glucosa en sangre a los 0 y 30 min tras la sobrecarga con d-glucosa mediante inyección intraperitoneal. Estos hallazgos indican que el KS, que contiene PR con PF como ingrediente principal, podría tener el potencial de prevenir la DT2 provocada por la disfunción ovárica en mujeres menopáusicas al aumentar la secreción de estradiol a partir de los adipocitos.
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kobayashi2022paeoniflorinbiochemistry Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors
Journal Biochemistry and biophysics reports
Year 2022
DOI
10.1016/j.bbrep.2022.101335
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