Effect of Increasing Efficacy and Decreasing Toxicity of Limax Extract on Cyclophosphamide in the Treatment of Hepatocellular Carcinoma / 中国药房

OBJECTIVE：To investigate the effect of increasing efficacy and decreasing toxicity of Limax extract （LE）on cyclophosphamide（CTX）in the treatment of hepatocellular carcinoma. METHODS ：The mice were randomly divided into normal group，model group ，CTX group （0.02 g/kg），LE low-dose ，medium-dose and high-dose groups （LEL，LEM，LEH group ，0.6，1.2，2.4 g/kg），CTX+LE low-dose ，medium-dose and high-dose combination groups （CTX+LEL，CTX+LEM，CTX+ LEH group ，the same dose as single drug group ），with 10 huangrenbin518@163.com mice in each group. Except for normal group ，other groups were inoculated with hepatoma cells H 22 in the left ar mpit to establish tumor bearing models. After 24 h of inoculation ，normal group and model group were intragastrically given normal saline ， and administration groups were intragastrically given corresponding drugs ，once a day ，for 10 days. On the second day after the last administration ，the general conditions of mice in each group were observed ；the body mass ，thymus index （LI），spleen index （SI）were measured ；the tumor inhibition rate was detected. The effect （q）of combination therapy was evaluated by King ’s formula . The counts of WBC ，RBC and PLT ，serum contents of ALT ，ALT，Scr and BUN were detected in model group ，CTX group and combination groups ，and the contents of MDA，SOD and GSH ，the levels of VEGF ，TNF-α and IL-6 in the tumor tissue were detected by colorimetry and ELISA in above groups. The protein expression of oncogenes （p53，Bcl-2 and Bax ）were detected by immunohistochemical method in model group，CTX group and CTX+LEM group. RESULTS ：The mice in the model group were in poor spirit and had symptoms of excessive drinking and eating ；although the body weight ，TI and SI were not significantly abnormal compared with normal group （P＞0.05），WBC count and AST content were significantly increased ，ALT and BUN contents were significantly decreased （P＜ 0.05 or P＜0.01）. Compared with model group ，above symptoms of mice were all improved in administration groups. The tumor weight of administration groups ，TI and SI of CTX group and TI of combination groups were decreased significantly ，but tumor weight of LEL group and LEH group ，TI and SI of LE single groups and combination groups were significantly higher than CTX group；tumor weight of combination groups were significantly lower than CTX group （P＜0.05 or P＜0.01）. The tumor inhibition rates of administration groups were 29.58％-72.08％. The q values of CTX+LEL group ，CTX+LEM group and CTX+LEH group were 1.03，0.97 and 0.86，respectively. Compared with model group ，WBC count ，AST and BUN contents of CTX group ，MDA contents of combination groups ，VEGF，TNF-α and IL-6 levels of administration groups ，the protein expression of Bcl- 2 in CTX group and CTX+LEM group were decreased significantly ；the activities of SOD and GSH of administration groups ，the protein expression of p 53 in CTX+LEM group and Bax in CTX group ，CTX+LEM group were increased significantly （P＜0.05 or P＜ 0.01）；WBC counts and AST contents of administration groups ，ALT content of CTX+LEM group ，SOD activity of CTX+LEH group and GSH activity of CTX+LEM group were all significantly higher than those of CTX group ；MDA content of CTX+LEH group，VEGF and TNF-α levels of CTX+LEM group and CTX+LEH group，IL-6 levels of administration groups were all significantly lower than CTX group （P＜0.05 or P＜0.01）. CONCLUSIONS ：LE combined with CTX can increase the anti-tumor effect，and LE can reduce the toxicity of CTX induced immunosuppression and bone marrow suppression in mice ，with effect of increasing efficacy and decreasing toxicity. The effect may be related to antioxidant stress ，inhibition of angiogenesis and secretion of inflammatory factors ，and regulation of apoptosis protein expression.

Research Progress on Processing of Polygalae Radix / 中国实验方剂学杂志

Polygalae Radix， a traditional Chinese medicine， has the functions of improving intelligence， calming nerves， relieving cough and eliminating phlegm. Its processing methods are various， but the purpose of processing is to reduce toxicity and increase efficiency. In this paper， the methods of ancient processing， such as cleansing， cutting， processing with excipient and processing without excipient， were summarized， the processing methods of Polygalae Radix in the different versions of Chinese Pharmacopoeia and the local processing specifications were summarized， in order to compare the differences and research progress of different processing methods. On this basis， taking the modern research of processed products of Polygalae Radix as the breakthrough point， this paper reviewed the modern research on processed products of Polygalae Radix from the aspects of processing technology， chemical composition changes and pharmacodynamics changes before and after processing， and the mechanism of reducing toxicity and increasing efficiency. Based on the research status of processing of Polygalae Radix， some existing problems were analyzed in this paper， including not many ancient processing methods used in modern times， lack of standardized research on processing technology， few studies on the ingredients introduced by excipients， etc. The author thinks that it is necessary to strengthen the research on the ancient processing of Polygalae Radix combined with processing methods with local characteristics. While discussing the processing technology， combining with the composition and efficacy， we should carry out in-depth research on the processing mechanism of different processing products of Polygalae Radix， so as to provide scientific basis for the rationality of processing of Polygalae Radix and ensure the clinical safety of medication.

Discussion and consideration on special way of taking Chinese materia medica (I): Guiding herbs / 中草药

"Guiding herbs" is one of the characteristics of the special way of taking Chinese materia medica (CMM). However, some people have misunderstanding or lack of basic knowledge about how to choose the guiding herbs and its effect, leading to the poor clinical effect or even toxic effects because of improper decoction. This study attempts to analyze the action of the common guiding herbs in the Chinese Pharmacopoeia (2015 edition) from the perspective of reducing toxicity and increasing efficacy, returning drug to its channels, and put forward exploratory thinking on how to choose the guiding herbs to provide scientific evidence for promoting the rational use of drugs in clinic.

Inreasing Efficacy and Decreasing foxicity of Chinese Medicine Combined with Oxaliplatin in the Treatment of Cancer / 中国药师

Oxaliplatin, a third-generation platinum-based compound with significant activity against tumors, has become pivotal for the therapy of cancer after cisplatin and carboplatin.The digestive tract reaction, myelosuppression and nephrotoxicity have been alleviated, however, oxaliplatin induced neurotoxicity occurs prominently.Therefore, how to effectively eliminate and prevent chemotherapy-induced side and toxic effects becomes a great challenge for oncologists.plenty of evidence has hinted that combination of Chinese herbal medicine and oxaliplatin can not only reduce the toxicity, but also improve the actual efficacy, clinical research and experimental researches on increasing off cacy and decresing foxcity of Chinese herbal medicine combined with oxali-platin in the treatment of cancer in recent years were rewewed.to provide reference for the clinical use of oxaliplatin-based chemotherapy regimen.