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??OBJECTIVE To examine the effects of TPGS 1000 and Soluplus on the transport of ginsenoside CK in Caco-2 cell model. METHODS The effects of TPGS 1000 and Soluplus at different concentrations on ginsenoside CK were evaluated by using Caco-2 cell model. The concentration of ginsenoside CK in cell was examined by ultra high pressure liquid chromatography (UPLC) method. The apparent permeability coefficient (P_app) and the efflux ratio were calculated. RESULTS When the proportion of ginsenoside CK to TPGS 1000 or Soluplus was 1??1, 1??3, and 1??9, the absorption of ginsenoside CK significantly increased. The efflux and efflux ratio both decreased significantly(P<0.05). TPGS 1000 had more significant promotion effect on the transport of ginsenoside CK than the same dose of soluplus at the same ratio (P<0.05). CONCLUSION In Caco-2 cell model, both TPGS 1000 and Soluplus can significantly promote the absorption of ginsenoside CK.
     

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??OBJECTIVE To investigate the anti-inflammatory effects of extract of Scutellaria baicalensis Georgi (SGE) and underlying mechanism by using LPS-induced microglial BV2 cells. METHODS MTT assay was used to observe the cell viability. The content of NO in cell supernatant was measured by Griess reagent. The levels of IL-1??, IL-6 and TNF-?? were detected by ELISA kits. The intracellular TLR4 expression was assayed by Western blotting. RESULTS The levels of NO, IL-1??, IL-6 and TNF-?? were significantly increased induced by LPS in the supernatant of BV2 cells (all P<0.01). However, co-treatment with SGE 100 ??g??mL^-1 significantly decreased the production of related inflammatory factors including NO (P<0.01), IL-1??(P<0.01), IL-6 (P<0.01) and TNF-?? (P<0.05). Furthermore, SGE significantly inhibited the TLR4 expression induced by LPS in BV2 cells. CONCLUSION SGE is able to alleviate LPS-induced inflammatory responses in BV2 cells through down-regulation of TLR4 protein expression suggesting that SGE has therapeutic potential for the treatment of neuroinflammatory diseases.     

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??OBJECTIVE To investigate the intestinal absorption characters of mosapride citrate(MC) and its tablets. METHODS The Caco-2 cell monolayer was cultured and the in situ single-pass intestinal perfusion(SPIP) in rat model was created for studying the drug absorption properties, using phenol red method to revise the perfusate volume, a HPLC method was developed to simultaneously detect the phenol red and MC, the absorptive coefficient of P_app and P_eff was calculated. RESULTS MC was absorbed by the whole intestine segments in rats, mainly at upper small intestine. The tablets showed high permeability and good intestinal absorption in Caco-2 cells and SPIP in rats. CONCLUSION In the Caco-2 cells and rats SPIP models, the tablets are prepared showed good consistency with the branded drug.     

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??OBJECTIVE To investigate the protective effect and possible mechanism of Rhizoma Coptis(RC) on lipopolysaccharide(LPS)-induced inflammatory injury in rat hepatocytes(BRL). METHODS LPS-induced BRL cells injury model was established in vitro, then the damaged cells were given different interventions and treatment with 0.175, 0.1 mg?? mL^-1 RC aqueous extract as the test drug, and dexamethasone(Dex) as positive control drug. The optimal test doses of LPS and RC aqueous extract were selected and determined by cell counting kit-8(CCK-8), the cellular apoptosis rate was determined by flow cytometry, TLR4/NF-??B and TLR4/IRF3 signaling pathways and the mRNA level of related inflammatory mediators(TNF-??, IL-1??, IL-6) were detected by RT-PCR, the NF-??B p65 protein expression was analysed by Western blot and immunofluorescence techniques. RESULTS ??Compared with normal control group, 0.1 mg??mL^-1 LPS affected on BRL cells for 24 h, the cell survival rate was decreased significantly(P<0.01), the apoptotic rate increased significantly(P<0.01), the mRNA level of TLR4, NF-??B, IRF3, TNF-??, IL-1??, IL-6 were significantly increased(P<0.01), and the NF-??B p65 protein expression was increased. ??Compared with the model group, 0.1 and 0.175 mg??mL^-1 RC affected on LPS-induced BRL cells for 24 h, the survival rate of BRL cells was increased significantly(P<0.05), the apoptotic rate decreased significantly(P<0.01), the mRNA level of TLR4, NF-??B, IRF3, TNF-??, IL-1??, IL-6 and the NF-??B p65 protein expression were decreased significantly(P<0.01). CONCLUSION Rhizoma Coptis has obviously protective effect on LPS-induced inflammatory injury in rat hepatocytes(BRL), the mechanism of which may be related with inhibiting apoptosis, reducing the release of inflammatory factors such as TNF-????IL-1?? and IL-6, blocking NF-??B p65 protein nuclear translocation, interfering the R4/NF-??B and TLR4/IRF3 signaling pathway.     

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??OBJECTIVE To study the preventing effects of p-coumaric acid(p-CA) on acute hypoxia-induced pulmonary edema by mice experiments. METHODS Acute-hypoxia model was established using a normobaric hypoxia chamber in vivo. Salidroside was set as a positive control drug. And the test period was 7 d using a method of intragastric administration. The measurements including pulmonary water content, HE staining, inflammatory factors, anti-oxidative indexes and Na⁺, K⁺-ATPase were performed to determine the efficacies and mechanisms of p-CA on preventive against acute hypoxia-induced pulmonary edema. RESULTS As compared with the normal group, pulmonary water contents increased significantly by 3.56% in the mice treated with acute hypoxia (9.5% O₂) for 6 h (control group) (P<0.01), and administration with p-CA (25, 100 mg??kg^-1??d^-1) for 7 d could significantly reduce this index (P<0.05), which was as effective as the positive group. The action mechanisms of p-CA could be due to its abilities of improving the activity of Na⁺, K⁺-ATPase, enhancing antioxidant capacity (SOD??, CAT?? and MDA??) and inhibiting inflammatory factors (IL-1?? and IL-6). CONCLUSION p-CA has greater preventive effects on acute hypoxia-induced pulmonary edema in mice.     

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??OBJECTIVE To examine the influence of key monitoring drugs policy in Anhui province and Sichuan province on the change of adjuvant drugs for promoting its rational use and providing a basis for policy formulation. METHODS Based on the key monitoring drug libraries formed in the monitoring catalogs of all the provinces, combining with the key monitoring drug catalogs in Anhui province and Sichuan province, this study selected the characteristics of drug-typicality and data availability through the selection of adjuvant drug selection criteria. Eight drugs of Anhui province and 10 drug of Sichuan province were selected as research objects. The study extracted monthly data from 3 hospitals in Anhui province from November 2014 to September 2017 and quarterly data from 9 hospitals in Chengdu, Sichuan province in the first quarter of 2014 to the first quarter of 2017. Interrupted Time Series (ITS) model was used to analyze the changes of dosage and amount of sample drugs and reference drugs. RESULTS ??After the implementation of the key monitoring drugs policy in Anhui province in November 2015, the usage trend of adjuvant drugs changed from rising to declining, with a significant decrease in the dosage (??₃=-0.035, P<0.001) and amount (??₃=-0.025, P<0.05). ??The monitoring measures implemented by Anhui province in January 2016 had no significant difference on the decrease of the dosage of adjuvant drugs (??₃=-0.010, P>0.1) and the amount of money (??₃=-0.001, P>0.1). ??After the implementation of the key monitoring drugs policy in the first quarter of 2016 in Sichuan Province, the declining trend of the use of adjuvant drugs was widened with a decrease of the dosage (??₃=-0.045, P<0.001) and the amount (??₃=-0.037,P<0.001). CONCLUSION The implementation of key monitoring drugs policy in Anhui province and Sichuan province can effectively control the use of most adjuvant drugs, with a significantly decrease of the dosage and amount.     

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??OBJECTIVE To study the effects of ganoderma spore oil(GSO) on behavior of the mice with chronic unpredictable mild stress (CUMS) and its possible neurophysiology mechanisms. METHODS Thirteen different kinds of chronic unpredictable mild stress were given to the male BALB/C mice for establishing the mouse model of depression. The mice were treated with GSO at 3 doses (850, 283, 141.5 mg??kg^{- 1}??d^-1) or vehicle [(oil) or fluoxetine (10 mg??kg^{- 1}??d^-1)] by oral administration from the 3rd week. After 2 weeks administration, the mice was evaluated by behavioral tests, and the contents of hippocampal glutamate (GLU) and ??-amino butyric acid (GABA) were analyzed by reversed phase high performance liquid chromatography (RP-HPLC). The contents of hippocampal brain derived neurotrophic factor (BDNF) were measured by ELISA kit. RESULTS Compared with model group, GSO increased the body weight, sucrose preference rate and open field test score, shortened the immobility time in the tails suspension test and forced swimming test in the depression mice (P<0.05 or P<0.01). Meanwhile, GSO significantly decreased the contents of GLU (P < 0.01 ) and increased the contents of BDNF(P<0.01), and the contents of GABA did not changes (P>0.05) in the hippocampus. CONCLUSION GSO shows obvious anti-depressant effect on depressant model mice. The antidepressant effect of GSO may be related to decreasing GLU contents and increasing BDNF contents.     

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??OBJECTIVE To study the effect of kangfuxin on damp-heat syndrome combined with TNBS-induced ulcerative colitis in rats and to explore its mechanism. METHODS Rat model of damp-heat was established by high-fat and high-sugar diet, and then combined with TNBS to establish rat model of damp-heat, respectively, to give sulfasalazine, rehabilitation, high, medium and low dose enema, by measuring disease activity index(DAI), colonic mucosal injury index(CMDI) and histopathological score(HS). The levels of IL-8, IL-17 and IL-2, MPO, EGF and TNF-?? in serum were measured by enzyme-linked immunosorbent assay(ELISA). RESULTS Compared with the model control group, the high dose group can significantly reduce the DAI, HS and CMDI scores of the damp-heat type UC rats(P<0.01, P<0.05). Each group type can reduce the heat UC rat serum IL-8, IL-17 and expression of MPO,TNF-?? in colon tissue, increases, the expression of rat IL-2 EGF(P<0.01). CONCLUSION Kangfuxin has a certain therapeutic effect on damp-heat type UC rats, and its mechanism may be related to down-regulating the expression of IL-8, IL-17,MPO and TNF-??, up-regulating the expression of IL-2 and EGF.