针对皮肤科中常见但治疗难度大的黄褐斑,提出基于聚乳酸微针的外用药物治疗方案。纳入12例黄褐斑患者,对照侧皮损处仅外用0.1 mL 2.9%氨甲环酸精华液,实验侧皮损处先使用聚乳酸微针预处理皮肤,然后外用0.1 mL 2.9%氨甲环酸精华液,治疗...针对皮肤科中常见但治疗难度大的黄褐斑,提出基于聚乳酸微针的外用药物治疗方案。纳入12例黄褐斑患者,对照侧皮损处仅外用0.1 mL 2.9%氨甲环酸精华液,实验侧皮损处先使用聚乳酸微针预处理皮肤,然后外用0.1 mL 2.9%氨甲环酸精华液,治疗共持续8周,从黄褐斑面积和严重程度指数(MASI)评分、患者满意度、黑素指数和红斑指数、CBS相关参数、不良反应方面比较了对照侧和实验侧的临床疗效。结果表明,与仅外用氨甲环酸精华液相比,聚乳酸微针联合氨甲环酸精华液治疗黄褐斑的效果更佳,能够更大程度地降低黑色素水平、改善血管病变,但对局部炎症没有进一步改善作用;患者对实验侧治疗的满意率(83.33%)远大于对照侧(41.67%),并且在治疗过程中未发现明显的不良反应。展开更多
目的研究筋骨草A jug a d ecum bens的化学成分。方法采用硅胶柱色谱对筋骨草的甲醇提取浸膏进行分离纯化,得到5个单体,并通过光谱分析鉴定了其结构。结果这5个单体分别被鉴定为1-辛烯-O-α-L-吡喃阿拉伯糖-(1-6)-O-[β-D-吡喃葡萄糖-(1...目的研究筋骨草A jug a d ecum bens的化学成分。方法采用硅胶柱色谱对筋骨草的甲醇提取浸膏进行分离纯化,得到5个单体,并通过光谱分析鉴定了其结构。结果这5个单体分别被鉴定为1-辛烯-O-α-L-吡喃阿拉伯糖-(1-6)-O-[β-D-吡喃葡萄糖-(1-2)]-β-D-吡喃葡萄糖(Ⅰ)、正丁基-β-D-吡喃果糖苷(Ⅱ)、6,7-二羟基-香豆素(Ⅲ)、5,7-二羟基-4′-甲氧基黄酮(Ⅳ)和谷甾醇-3-O-β-D-吡喃葡萄糖苷(Ⅴ)。结论5个化合物均为首次从该植物中分离得到。展开更多
From the roots of Helicteres angustifolia, collected from Anhui province, two triterpenoids of oleanolic acid type were obtained and were identified as new compounds, methyl 3β-hydroxyolean-12-en-27-benzoyloxy-28-oat...From the roots of Helicteres angustifolia, collected from Anhui province, two triterpenoids of oleanolic acid type were obtained and were identified as new compounds, methyl 3β-hydroxyolean-12-en-27-benzoyloxy-28-oate(1) and 3β-O-(p-hydroxy-(E)-cinnamoyl)-12 oleanen-28-oic acid(2). The variety of spectroscopic methods such as IR, HRMS, EIMS, H-H COSY, H-C COSY NMR have been applied in the structural elucidation of these two compounds.展开更多
文摘针对皮肤科中常见但治疗难度大的黄褐斑,提出基于聚乳酸微针的外用药物治疗方案。纳入12例黄褐斑患者,对照侧皮损处仅外用0.1 mL 2.9%氨甲环酸精华液,实验侧皮损处先使用聚乳酸微针预处理皮肤,然后外用0.1 mL 2.9%氨甲环酸精华液,治疗共持续8周,从黄褐斑面积和严重程度指数(MASI)评分、患者满意度、黑素指数和红斑指数、CBS相关参数、不良反应方面比较了对照侧和实验侧的临床疗效。结果表明,与仅外用氨甲环酸精华液相比,聚乳酸微针联合氨甲环酸精华液治疗黄褐斑的效果更佳,能够更大程度地降低黑色素水平、改善血管病变,但对局部炎症没有进一步改善作用;患者对实验侧治疗的满意率(83.33%)远大于对照侧(41.67%),并且在治疗过程中未发现明显的不良反应。
文摘目的研究筋骨草A jug a d ecum bens的化学成分。方法采用硅胶柱色谱对筋骨草的甲醇提取浸膏进行分离纯化,得到5个单体,并通过光谱分析鉴定了其结构。结果这5个单体分别被鉴定为1-辛烯-O-α-L-吡喃阿拉伯糖-(1-6)-O-[β-D-吡喃葡萄糖-(1-2)]-β-D-吡喃葡萄糖(Ⅰ)、正丁基-β-D-吡喃果糖苷(Ⅱ)、6,7-二羟基-香豆素(Ⅲ)、5,7-二羟基-4′-甲氧基黄酮(Ⅳ)和谷甾醇-3-O-β-D-吡喃葡萄糖苷(Ⅴ)。结论5个化合物均为首次从该植物中分离得到。
文摘From the roots of Helicteres angustifolia, collected from Anhui province, two triterpenoids of oleanolic acid type were obtained and were identified as new compounds, methyl 3β-hydroxyolean-12-en-27-benzoyloxy-28-oate(1) and 3β-O-(p-hydroxy-(E)-cinnamoyl)-12 oleanen-28-oic acid(2). The variety of spectroscopic methods such as IR, HRMS, EIMS, H-H COSY, H-C COSY NMR have been applied in the structural elucidation of these two compounds.
