以贵州省黔东南州雷公山白补药为研究对象,采用NaNO_2-Al(NO_3)_3-NaOH协同显色体系,紫外分光光度法测定白补药中总黄酮含量。对显色剂的用量及显色时间进行了研究。研究结果表明:以0.5 m L 5%NaNO_2(放置6 min)、0.5 m L 10%Al(NO_3)_3...以贵州省黔东南州雷公山白补药为研究对象,采用NaNO_2-Al(NO_3)_3-NaOH协同显色体系,紫外分光光度法测定白补药中总黄酮含量。对显色剂的用量及显色时间进行了研究。研究结果表明:以0.5 m L 5%NaNO_2(放置6 min)、0.5 m L 10%Al(NO_3)_3(放置6 min)和5 mL 4%NaOH(放置15 min)为最佳显色体系,芦丁为标准品,在505 nm波长下进行测定,标准品在10-62μg/m L范围内与吸光度呈现良好的线性关系,加标回收率为99.2%,RSD=1.2%,其回归方程和相关系数分别为y=11.0767x+0.0071,r=0.9991。该方法具有重现性好,可操作性强等优点。可以用于白补药中总黄酮含量的测定。展开更多
本文以没食子酸为对照品,探索白补药多酚Folin-Ciocalteu比色法的测定条件。研究结果表明,Folin-Ciocalteu比色法测定白补药多酚含量的适宜条件为:Folin-Ciocalteu试剂1.5 m L、10%Na2CO3溶液6 m L、温度40℃、反应30 min,该法操作简单...本文以没食子酸为对照品,探索白补药多酚Folin-Ciocalteu比色法的测定条件。研究结果表明,Folin-Ciocalteu比色法测定白补药多酚含量的适宜条件为:Folin-Ciocalteu试剂1.5 m L、10%Na2CO3溶液6 m L、温度40℃、反应30 min,该法操作简单、精密度高、稳定性好、回收率高。并考察了白补药多酚和阳性对照VC、BHT的抗氧化活性,结果显示,白补药多酚对DPPH清除率、总抗氧化能力、还原力均大于同浓度的VC和BHT。展开更多
OBJECTIVE： To explore the effect of antithymocyte globulin （ATG）/antilymphocyte globulin （ALG） plus kidney-nourishing Chinese medicinal （KNCM） on se- vere aplastic anemia （SAA）. METHODS： Twenty-five subjects...OBJECTIVE： To explore the effect of antithymocyte globulin （ATG）/antilymphocyte globulin （ALG） plus kidney-nourishing Chinese medicinal （KNCM） on se- vere aplastic anemia （SAA）. METHODS： Twenty-five subjects of severe aplastic anemia were treated with ATG/ALD plus KNCM be- tween 1992 and 2009, and the clinical data before and after treatment were collected and analyzed. RESULTS： Of the 25 patients, 9 were nearly cured, 6 were improved, 5 were in remission, and 5 failed. The overall effective rate was 80.0%. The 3-year, 5-year, 10-year, 15-year survival rate were respec- tively 98.6%, 97.3%, 97.3%, 67.5%, and median sur- vival time was 180 months. Compared to the condi- tions before administering the medication of ATG/ ALG plus KNCM, after 2 weeks, reticulocyte was first improved （P=0.001）, one month later, followed by palette （P=0.037）, two months later, by neutrophil cell in peripheral blood （P=0.001）; three months lat- er, then by the hemoglobin （P=0.012）. By conduct- ing 1-year follow-up, 1 case of complication--parox-ysmal nocturnal hemoglobinuria （PNH） was identi- fied and the patient still alive today. CONCLUSION： ATG/ALG fect on SAA and could rate. plus KNCM had better ef- improve patients＇ survival展开更多
文摘以贵州省黔东南州雷公山白补药为研究对象,采用NaNO_2-Al(NO_3)_3-NaOH协同显色体系,紫外分光光度法测定白补药中总黄酮含量。对显色剂的用量及显色时间进行了研究。研究结果表明:以0.5 m L 5%NaNO_2(放置6 min)、0.5 m L 10%Al(NO_3)_3(放置6 min)和5 mL 4%NaOH(放置15 min)为最佳显色体系,芦丁为标准品,在505 nm波长下进行测定,标准品在10-62μg/m L范围内与吸光度呈现良好的线性关系,加标回收率为99.2%,RSD=1.2%,其回归方程和相关系数分别为y=11.0767x+0.0071,r=0.9991。该方法具有重现性好,可操作性强等优点。可以用于白补药中总黄酮含量的测定。
文摘本文以没食子酸为对照品,探索白补药多酚Folin-Ciocalteu比色法的测定条件。研究结果表明,Folin-Ciocalteu比色法测定白补药多酚含量的适宜条件为:Folin-Ciocalteu试剂1.5 m L、10%Na2CO3溶液6 m L、温度40℃、反应30 min,该法操作简单、精密度高、稳定性好、回收率高。并考察了白补药多酚和阳性对照VC、BHT的抗氧化活性,结果显示,白补药多酚对DPPH清除率、总抗氧化能力、还原力均大于同浓度的VC和BHT。
文摘OBJECTIVE： To explore the effect of antithymocyte globulin （ATG）/antilymphocyte globulin （ALG） plus kidney-nourishing Chinese medicinal （KNCM） on se- vere aplastic anemia （SAA）. METHODS： Twenty-five subjects of severe aplastic anemia were treated with ATG/ALD plus KNCM be- tween 1992 and 2009, and the clinical data before and after treatment were collected and analyzed. RESULTS： Of the 25 patients, 9 were nearly cured, 6 were improved, 5 were in remission, and 5 failed. The overall effective rate was 80.0%. The 3-year, 5-year, 10-year, 15-year survival rate were respec- tively 98.6%, 97.3%, 97.3%, 67.5%, and median sur- vival time was 180 months. Compared to the condi- tions before administering the medication of ATG/ ALG plus KNCM, after 2 weeks, reticulocyte was first improved （P=0.001）, one month later, followed by palette （P=0.037）, two months later, by neutrophil cell in peripheral blood （P=0.001）; three months lat- er, then by the hemoglobin （P=0.012）. By conduct- ing 1-year follow-up, 1 case of complication--parox-ysmal nocturnal hemoglobinuria （PNH） was identi- fied and the patient still alive today. CONCLUSION： ATG/ALG fect on SAA and could rate. plus KNCM had better ef- improve patients＇ survival
