Ttextual research of Cannabis sativa varieties and medicinal part / 中国中药杂志

<p><b>OBJECTIVE</b>To determine the medicinal part and varieties of Cannabis Sativa through herbal textual research to Provide bibliographic reference for clinical application.</p><p><b>METHOD</b>Herbal textual research of C. Sativa from ancient herbal works and modern data analysis.</p><p><b>RESULT</b>Through the herbal textual research, the plant of the C. sativa, for Fructus Cannabis used now is identical with that described in ancient herbal literatures. People did not make a sharp distinction on medicinal part of C. sativa in the early stage literatures, female inflorescence and unripe fruit, fruit and kernel of seed were all used. Since Taohongjing realized the toxicity ofpericarp, all the herbal and prescription works indicate that the pericarp shall be removed before usage and only the kernel can be used. However, in modem literatures, both fruit and kernel can be used as medicinal part.</p><p><b>CONCLUSION</b>The plants for Fructus Cannabis described in modern and ancient literatures are identical. The base of the original plant is the same either in ancient or modern. And the toxicity of the fruit is more than that of the kernel. The kernel is the exact medicinal part of C. Sativa.</p>

HPLC fingerprint of Codonopsis tangshen from different habitats / 中国中药杂志

<p><b>OBJECTIVE</b>To establish a sensitive and specific HPLC method for quality control of Codonopsis tangshen.</p><p><b>METHOD</b>The samples were determined with the dereloped method. By the Similarity Evaluation System for Chromatographic Fingerprint of Traditional Chinese Medicine (Version 2004A), mean chromatogram was generated as the representative standard fingerprint and the similarity of each chromatogram against the mean chromatogram was also calculated. Samples was clustered using principal component analysis (PCA) based on the ratio of characteristic peaks and standard peak. The chromatographic fingerprinting of C. tangshen, showing 7 characteristic peaks, was established from 29 habitats of C. tangshen.</p><p><b>RESULT</b>The similarity of the chromatographic fingerprints from the 29 samples was over 0.8 and 23 samples were classified into one group based on hierarchical cluster, which showed the quality of C. tangshen from different habitats was in good consistency.</p><p><b>CONCLUSION</b>The method can be applied for quality assessment of C. tangshen.</p>

Characteristics of element contents and their influence factors in Codonopsis tangshen / 中国中药杂志

<p><b>OBJECTIVE</b>To study the characteristics of element contents and the influencing factors in Codonopsis tangshen.</p><p><b>METHOD</b>The contents of elements were determined and the data was statistically analyzed.</p><p><b>RESULT</b>The variation coefficients of elements in C. tangshen were lower than those in soil, and variation coefficients of C. tangshen from different habitats were lower than 50%.</p><p><b>CONCLUSION</b>The absorption of nutritional elements in C. tangshen was related to content and condition of soil nutrients, and climate etc.</p>

Chemical constituents of antirheumatism fraction from Urtica fissa / 中草药

Objective To study the chemical constituents of the EtOAC soluble fraction from Urtica fissa with obviously anti-inflammatory and analygestic effect. Methods The compounds were isolated by polyamide and silical gel colum chromatography and identified by UV, IR, NMR, and MS. Results Twelve compounds were isolated from U. fissa and identined as quercetin (Ⅰ), kaempferol (Ⅱ), kaempferol-3-O-?-D-glucopyranoside (Ⅲ), quercetin-3-O-?-D-glucopyranoside (Ⅳ), caffeic acid (Ⅴ), chlorogenic acid (Ⅵ), scopolin (Ⅶ), scopoletin (Ⅷ), kaempferol-3-O-rutinoside (Ⅸ), quercetin-7-O-?-D-glucopyranoside (Ⅹ), isorhamnetin-3-O-?-D-rutinoside (Ⅺ), ?-sitosterol ( ⅩⅡ ). Conclusion Compounds Ⅰ-Ⅺ are all isolated from U. fissa for the first time and compounds Ⅶ, Ⅹ, and Ⅺ are found in plants of Urtica L. for the first time also.