Objective To lay the foundation of new botanical pesticides by screening the insecticidal efficacy of 10 commonly used TCM pesticides.Methods Slide immersion method, trace intravenous drip method and insect body dipping method were respectively used to measure contact action of water extract and ethanol extract of the 10 commonly used TCM pesticides toTeranychus cinnbarinus,Brevicoryne brassicaeandMythimna separate, with herbal extracts to three kinds of insect pests of corrected mortality as observation indexes,Results Alcohol extracts for three kinds of insect pests were found to have contact action, and water extracts had no obvious effect. The Stemonae Radix alcohol extract had obvious contact action on three kinds of insect pests, and corrected mortality rates were 78.7%, 85.9%, and 96.7%, respectively; ethanol extracts of Angled Bittersweet, Sophorae Flavescentis Radix, Xanthii Fructus and Kansui Radix showed good contact action to Teranychus cinnbarinus,. The volume ratio of compatibility among Angled Bittersweet, Sophorae Flavescentis Radix, Xanthii Fructus and Kansui Radix was 2:1:1.5:1.5:1.5:1.5. The insecticidal activity to Teranychus cinnbarinus, was stronger than extracts of single herbs, and corrected mortality was 96.5%. Alcohol extracts of Stellera, hellebore, white mustard seed, and Xanthii Fructus showed good contact action toBrevicoryne brassicae. When the volume ratio of compatibility among Xanthii Fructus, Stemonae Radix, Stellera, and hellebore was 1:1.5:2:2, the activity toBrevicoryne brassicae increased. and corrected mortality was 93.1%.Conclusion The insecticidal activity will be enhanced after TCM extracts are under compatibility.

Objective To compare analgesic and anti-inflammatory effects of Gentianopsis Paludosa and Sophora Alopecuroide of different kinds of compatibility on the mice.Methods Mice were randomly divided into normal control group, positive medicine group, and different kinds of compatibility groups, 10 mice in each group. Mice received gavage for successive 7 days, once a day. Glacial acetic acid twist body method and hot board to pain method were used to observe and compare analgesic effects of different kinds of compatibility. Xylene to ear swelling method and agar to granulation swollen method were used to observe and compare inflammatory effects of different kinds of compatibility.Results Compared with normal group, compound Gentianopsis Paludosa had obvious analgesic and anti-inflammatory effects (P<0.01). When the ratio of Gentianopsis Paludosa and Sophora Alopecuroide was 20:0.6 and 20:0.9, the analgesic and anti-inflammatory effects were the best.Conclusion Gentianopsis Paludosa and Sophora Alopecuroide have good analgesic and anti-inflammatory effects, among which, when the ratio of Gentianopsis Paludosa and Sophora Alopecuroide is 20:0.6, the best effects show.

Objective To investigate the mechanism of Gentianopsis paludosa xanthone(GPX)combined with probiotics in the intervention of colon inflammation-tumor transformation in rats by regulating TGF-β1/Smads pathway and inflammatory factors.Methods Ninety rats were divided into the normal group,the model group[drinking sodium dextran sulfate(DSS)for 3 days]and the intervention group by random number table method.The model group was subdivided into the inflammatory stage group,the pre-inflammatory cancer group(DMH injection for 4 weeks),the intermediate inflammatory cancer group(DMH injection for 13 weeks)and the advanced inflammatory cancer group(DMH injection for 21 weeks).The administration group was subdivided into the groups(after the first day of drinking DSS,drugs for each group were given by gavage once a day for 8 weeks)on the basis of the advanced inflammatory cancer group,including the GPX group(GPX 69.3 mg/kg),the probiotic group,the combined group(GPX+probiotics 400 mg/kg)and the thalidomide group(thalidomide 13.5 mg/kg).The disease activity index(DAI),colon length and wet mass index were compared between all groups.Characteristics of colon tumors were observed,and pathological changes of colon were observed by HE staining.The expression levels of transforming growth factor(TGF)-β1,Smad4,Smad7,interleukin(IL)-6 and tumor necrosis factor(TNF)-α were detected by Western blot assay and enzyme-linked immunosorbent assay,respectively.Results Compared with the advanced inflammatory cancer group,the administration groups showed an increase in colon length,the expression levels of TGF-β1 and Smad4 protein,a decrease in colon wall thickness,wet mass index,maximum tumor diameter,the levels of Smad7,IL-6,TNF-α,and DAI score decreased in the GPX group and the combined group(P＜0.05).The structure and morphology of intestinal mucosa were improved in the GPX group,the probiotic group and the combination group,and the structure of colonic crypt and goblet cell number were increased.Compared with the probiotic group and the GPX group,the colon wall thickness,colon wet mass index and tumor number were decreased,the protein expression levels of TGF-β1 and Smad4 were increased,and levels of IL-6 and TNF-α were decreased in the combination group(P＜0.05).Conclusion GPX combined with probiotics could inhibit the transformation of colon inflammation-tumor,and the mechanism may be related to the regulation of TGF-β1/Smads pathway and the inhibition of pro-inflammatory factors of IL-6 and TNF-α.