目的考察白芦藜醇(Resveratrol,RSV)对牙周炎大鼠骨保护素(osteoprotegerin,OPG)/核因子-κB受体活化因子配体(receptor activator of NF-κB ligand,RANKL)/核因子-κB受体活化因子(receptor activator of NF-κB,RANK)(OPG/RANKL/RANK...目的考察白芦藜醇(Resveratrol,RSV)对牙周炎大鼠骨保护素(osteoprotegerin,OPG)/核因子-κB受体活化因子配体(receptor activator of NF-κB ligand,RANKL)/核因子-κB受体活化因子(receptor activator of NF-κB,RANK)(OPG/RANKL/RANK)信号通路相关蛋白的影响。方法采用不同浓度的RSV对牙周炎大鼠进行干预,采用RT-PCR和Western blot分别检测牙周组织细胞OPG、RANKL、IL-1、IL-6、TNF-α和基质金属蛋白酶8(matrix metalloproteinase 8,MMP-8)的mRNA水平和蛋白表达水平。结果牙周炎模型组大鼠牙周组织中OPG、RANKL、IL-1、IL-6、TNF-α和MMP-8的mRNA表达强度和蛋白水平高于空白对照组(P<0.05),RSV低剂量组、RSV中剂量组、RSV高剂量组则依次低于牙周炎模型组(P<0.05)。结论RSV可以降低牙周炎大鼠牙周组织中OPG、RANKL、IL-1、IL-6、TNF-α和MMP-8的mRNA和蛋白表达水平,改善大鼠牙周组织状况。展开更多
Aim To synthesize a new prodrug, resveratrol trinicotinate. Methods Inpresence of lithium and a catalytic amount of naphthalene, the reaction of p-methoxybenzyltrimethylsilyl ether and 3,5-dimethoxylbenzaldehyde gave ...Aim To synthesize a new prodrug, resveratrol trinicotinate. Methods Inpresence of lithium and a catalytic amount of naphthalene, the reaction of p-methoxybenzyltrimethylsilyl ether and 3,5-dimethoxylbenzaldehyde gave resveratrol after a series of translation.Resveratrol trinicotinate was obtained by the reaction of resveratrol and nicotinoyl chloridehydrochloride. Results A mutual prodrug resveratrol trinicotinate was designed and synthesized.Conclusion A novel method for synthesis of resveratrol and resveratrol trinicotinate has beenafforded. The E-isomer is selectivily obtained by dehydration of the compound 2 with KHSO_4 .展开更多
文摘Aim To synthesize a new prodrug, resveratrol trinicotinate. Methods Inpresence of lithium and a catalytic amount of naphthalene, the reaction of p-methoxybenzyltrimethylsilyl ether and 3,5-dimethoxylbenzaldehyde gave resveratrol after a series of translation.Resveratrol trinicotinate was obtained by the reaction of resveratrol and nicotinoyl chloridehydrochloride. Results A mutual prodrug resveratrol trinicotinate was designed and synthesized.Conclusion A novel method for synthesis of resveratrol and resveratrol trinicotinate has beenafforded. The E-isomer is selectivily obtained by dehydration of the compound 2 with KHSO_4 .