Aim To screen sedative constituents from Valeriana fauriei Briq. Result A new guaiane-type compound named as valerianin C was isolated from the roots of Valeriaaafauriei Briq. Conclusion The new compound was elucidate...Aim To screen sedative constituents from Valeriana fauriei Briq. Result A new guaiane-type compound named as valerianin C was isolated from the roots of Valeriaaafauriei Briq. Conclusion The new compound was elucidated as 8α-acetoxyl-3α, 4α, 10-trihydroxyl-guaia- 1 （ 2 ）-ene- 12, 6α-olide on the basis of its NMR data, especially 2D- NMR techniques.展开更多
研究人员研制出一种特异、灵敏、简易经济的检验结直肠潜隐性出血的方法。此项新技术是由传统的愈创木脂反应和免疫化学试验组成。用干燥的过滤纸片消除或减少假阳性反应的一种二期试验。从而少用较大伤害性的诊断方法。本文报道对3346...研究人员研制出一种特异、灵敏、简易经济的检验结直肠潜隐性出血的方法。此项新技术是由传统的愈创木脂反应和免疫化学试验组成。用干燥的过滤纸片消除或减少假阳性反应的一种二期试验。从而少用较大伤害性的诊断方法。本文报道对3346名农村居民普查的情况:在食用规定饮食的人群中,发现546人(16.3％)呈现阳性着色反应。在二期免疫化学检验中,阳性反应数字下降至54(1.6％)。在大便潜血的病人中,检出5人(9.25％)患结肠直肠癌,均属 Duke A期。癌、息肉和溃疡性结肠炎(癌变前期)总检出率为40.73％。迄今为止,研究结果表明。展开更多
文摘Aim To screen sedative constituents from Valeriana fauriei Briq. Result A new guaiane-type compound named as valerianin C was isolated from the roots of Valeriaaafauriei Briq. Conclusion The new compound was elucidated as 8α-acetoxyl-3α, 4α, 10-trihydroxyl-guaia- 1 （ 2 ）-ene- 12, 6α-olide on the basis of its NMR data, especially 2D- NMR techniques.
文摘研究人员研制出一种特异、灵敏、简易经济的检验结直肠潜隐性出血的方法。此项新技术是由传统的愈创木脂反应和免疫化学试验组成。用干燥的过滤纸片消除或减少假阳性反应的一种二期试验。从而少用较大伤害性的诊断方法。本文报道对3346名农村居民普查的情况:在食用规定饮食的人群中,发现546人(16.3％)呈现阳性着色反应。在二期免疫化学检验中,阳性反应数字下降至54(1.6％)。在大便潜血的病人中,检出5人(9.25％)患结肠直肠癌,均属 Duke A期。癌、息肉和溃疡性结肠炎(癌变前期)总检出率为40.73％。迄今为止,研究结果表明。
