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Resveratrol fails to improve marginal mass engraftment of transplanted islets of Langerhans in mice

机译:白藜芦醇不能改善小鼠朗格汉斯胰岛的边缘团块植入

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One limitation of current islet transplantation protocols is the loss of up to 70% of the transplanted islet mass. Inflammatory events play a major role in islet loss including the cytokines TNFα and IL-1. Resveratrol, a compound with anti-inflammatory and anti-oxidant properties, has the potential to mitigate islet loss. Using a syngeneic marginal after mouse islet transplantation model we tested the ability of resveratrol to enhance islet engraftment. We failed to show a difference in diabetes reversal between mice treated with vehicle and those treated with either 10 mg/kg (47.1% for resveratrol vs. 35.3% for control) or 50 mg/kg (20% for resveratrol vs. 22.2% for control) of resveratrol daily for three weeks. In addition, at one month there was no difference in glucose tolerance or graft survival (10 mg/kg: 552.6 ng/ml resveratrol group vs. 576.6 ng/ml control group; 50 mg/kg: 463 ng/ml resveratrol group vs. 444.1 ng/ml control group). In summary, over a wide range of doses, resveratrol did not exert a benefit on mouse islet engraftment. Further studies should be conducted with human islets before deeming resveratrol ineffective in islet engraftment and survival.
机译:当前胰岛移植方案的局限性之一是损失了高达70%的移植胰岛。炎症事件在胰岛丢失中起主要作用,包括细胞因子TNFα和IL-1。白藜芦醇是具有抗炎和抗氧化特性的化合物,具有减轻胰岛丢失的潜力。使用小鼠胰岛移植后的同源边缘,我们测试了白藜芦醇增强胰岛移植的能力。我们没有显示用媒介物治疗的小鼠和用10 mg / kg(白藜芦醇为47.1%,而对照为35.3%)或50 mg / kg(白藜芦醇为20%,而白藜芦醇为22.2%)的小鼠在糖尿病逆转方面没有差异。对照)白藜芦醇,持续三周。此外,在一个月的时间里,葡萄糖耐量或移植物存活率没有差异(10 mg / kg:552.6 ng / ml白藜芦醇组与576.6 ng / ml对照组; 50 mg / kg:463 ng / ml白藜芦醇组。对照组为444.1 ng / ml)。总之,在很宽的剂量范围内,白藜芦醇对小鼠胰岛移植没有益处。在认为白藜芦醇对胰岛的植入和存活无效之前,应对人的胰岛进行进一步的研究。

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