Objective To clarify the genetic diversity of HIV-1 strains currently circulating in Shanghai and establish the molecular epidemiological database of HIV-1 infection.Methods The samples from 114 newly diagnosed HIV-l-infected individuals between June 2004 and June 2005 were investigated.HIV-1 pol gene(protease 1-99 aa and reverse transcriptase 1-252 aa) from plasma sam- ples were amplified by RT-PCR,sequenced and phylogenetieally analyzed.Protease inhibitors(PRIs) and reverse transcriptase inhibitors (RTIs) resistance-associated mutations in protease (PR) and re- verse transcriptase(RT) regions were analyzed.Results (1)Epidemiological survey showed the exist ence of different modes of transmission of HIV-1 including sexual contacts 51(44.74%),intravenous drug users 43 (37.72%),contaminated blood/blood products transfusion 3(2.63%) and unknown in- fection 17(14.91%);(2)Phylogenetic analysis revealed that 9 of the analyzed sequences were identi- fied as subtype B(7.89%),15 as subtype B'(13.16%),1 as subtype C(0.88%),1 as subtype G (0.88%),38 as CRF01 AE(33.33%),46 as CRF07 BC(40.35%) and4 asCRF08 BC(3.51%); (3)Analysis of drug-resistance associated mutation showed that 21 of 114 (18.42%) persons infected with drug-resistant HIV-1,among which major mutations in PR and RT regions accounted for 2.63 (3/114) and 17.54% (20/114),respectively.The frequencies of major mutation in PR region were M46I(66.67%),M46L(33.33%) and in RT region were M41L(7.69%),A62V (7.69%),T69S (7.69%),V75I/L(15.38%),K103R(25.00%),V118I(23.08%),V179D/E/T(33.33%),G190R (8.33%),L210K/M/X(38.46%),227L/I(16.67%),M230R(8.33%),P236R(8.33%).Conclusions The results revealed the current presence of multiple HIV-1 subtypes and recombinants strains infec- ting residents and migrants living in Shanghai.The broad diversity of HIV-1 has been introduced into Shanghai mainly through drug injection and heterosexual contacts.This study also revealed that HIV-1 strains infecting these newly diagnosed treatment-naive persons have acquired major mutations in both PR gene and RT gene of HIV-1.

BACKGROUND: Xiaohuoluo pill can expel pathogenic wind, remove dampness and activate collaterals. It is used for treatment of Bi-syndrome due to wind-cold-dampness, pain and numbness in limbs.OBJECTIVE: To observe the pharmacological effect of Xiaohuoluo pills on secondary immune response, specific immunity (including cellular immunity and humoral immunity), non-specific immunity [including complement 3(C3), mononuclear phagocyte system (MPS) and red blood cell (RBC)adhesion function] and free radical injury as well as pain and many other inflammations in mice.DESIGN: A randomized controlled stratified trial.SETTING: Guangzhou Institute of Traditional Chinese Medicine and Chinese Materia Medica; Department of Pharmacy, Guangzhou Hospital of Traditional Chinese Medicine.MATERIALS: Totally 628 NIH and ICR mice of 6 to 8 weeks were involved in this trial. Xiaohuoluo pills (components: Dannanxing, Zhichuanwu, Zhicaowu, Dilong, Ruxiang and so on; Chenli Pharmaceutical Factory,Guangzhou; Brach No. 19980612) were used in this trial. Rabbit antimouse immunoglobulin G (IgG) and C3 antiserum reagent kit (Guangzhou Institute of Medicine and Health) and reagent kit for measuring the antioxidizing activity of superoxide dismutase (SOD) and the level of malondialdehyde (MDA) (Jiancheng Institute of Bioengineering, Nanjing) were used.METHODS: This trial was carried out in the Guangzhou Institute of Traditional Chinese Medicine and Chinese Materia Medica; Department of Pharmacy, Guangzhou Institute of Medicine and Health during September 1998 to December 1999. ① To observe the suppressive effect of Xiaohuoluo pills on cock red blood cell (CRBC)-induced secondary immune response: Eight-four ICR mice, male and female in half, were selected.Twenty of 84 mice served as blank controls; The other 64 mice were intraperitoneally injected with cyclophos-phamide (CY) of 0.2 g/kgonce. On the 4th and 12th days, CRBC was intraperitoneally injected into the mice twice to induce immunoenhancing pathological models to form secondary immune response. Mice served as blank controls were intraperitoneally injected with the same volume of normal saline; The immunoenhanced mice were assigned into 3 groups by a lot: CY group (n=20, CY, 40 mg/kg, intragastric administration, I.g.), Xiaohuoluo pills (n=21, Xiaohuoluo pills suspension, 5.54 g/kg, I.g.) and model group (n=20, distilled water, the same volume as other groups, I.g.); once a day within 7 successive days. 19 days later, the levels of serum IgG and C3 were measured with single immunodiffusion method, and the level of circulating immune compound (CIC) was measured with polyethylene glycol precipitation method. ② To observe the suppressive effect of Xiaohuoluo pills on delayed type hypersensitivity (DTH): Fifty-four ICR mice, male and female in half, were selected. On the 1st day, the mice were sensitized by subcutaneous injection of 10 g/L 2,4-dinitrofluorobenzen e (DNFB) of 50 μL for each. On the 4th day, the sensitized mice were assigned into 3 groups by a lot: Prednisone group (n=18, prednisone, 0.01 g/kg, I.g.), Xiaohuoluo pills (n=18, Xiaohuoluo pills suspension, 5.54 g/kg, I.g.), model group (n=18, distilled water, the same volume as other groups, I.g.), all once a day within 7 successive days. 11 days later, 10 g/L DNFB of 25μL was spread on the right ear of each mouse in each group. The swelling degree was calculated 24 hours later (The mass difference between right ear and left ear). ③ To observe the suppressive effect of Xiaohuoluo pills on immune adhesion function of RBC of mouse: Thirty-six NIH mice, male and female in half, were selected and assigned into 3 groups by a lot: CY group (n=12, CY, 20 mg/kg,I.g.), Xiaohuoluo pills (n=12, Xiaohuoluo pills suspension, 5.54 g/kg, I.g.)and blank control group (n=12, distilled water, the same volume as other groups, I.g.), once a day within 7 successive days. 7 days later, blood was taken from the orbit of mice for calculating the rosette rate of RBC-C3b receptor and the rosette rate of RBC immune compound. ④ To observe the suppressive effect o20 Mg/kg, I.g.),Xiaohuoluo pills group (Xiaohuoluo pills suspension, 5.54 g/kg, I.g.) , once a day within 7 successive days; IgM-type hemolytic concentration (HC50)was measured at 2 hours after the last administration on the 7th day [ (Sample absorption / Absorption at HC50 of CRBC) ×diluted time]. The levels of serum C3 and MDA and the activity of SOD were measured according to the method from corresponding reagent kit. ⑥ To observe the suppressive effect of Xiaohuoluo pills on agar granulation tissue hyperplasia in mice:Fifty-nine NIH mice were selected and given subcutaneous injection of 20 g/L agar of 0.5 mL for each. 24 hours later, the mice were assigned into 3 groups by a lot: diclofenac group (diclofenac, 10 mg/kg,I.g..), Xiaohuoluo pills group (Xiaohuoluo pills suspension, 5.54 g/kg, I.g.) and model group (distilled water, the same volume as other groups, I.g.), once a day within 7 successive days; On the 8th day, the mice were sacrificed. The hyperplasiainhibiting effect was presented in the form of the mass of agar granulation tissue in one kilogram body mass ⑦ To observe the suppressive effect of Xiaohuoluo pills on acetic distortion reaction: Sixty-three NIH mice were se lected and assigned into 3 groups by a lot: diclofenac group (diclofenac,50 mg/kg, I.g.), Xiaohuoluo pills group (Xiaohuoluo pills suspension, 5.54 g/kg,I.g.) and model group (distilled water, the same volume of other groups, I.g.),once a day within 2 successive days. At 2 hours after the last administration, the mice were given intraperitoneal injection of 0.1 mol/L acetic acid of 0.2 mL for each one. The times of distortion of mice within 20 minutes were counted. ⑧ To observe the effect of Xiaohuoluo pills on the acute exudative inflammation evoked by dimethylbenzene, croton oil and carrageenan, and the level of prostaglandin E in the inflammatory exudates:Totally 219 NIH mice were selected and assigned into 3 groups by a lot:diclofenac group (diclofenac, 50 mg/kg, I.g.), Xiaohuoluo pills group (Xiaohuoluo pills suspension, 5.54 g/kg, I.g.) and model group (distilled water, the same volume of other groups, I.g.) once a day within 2 successive days. At 2 hours after the last administration, dimethylbenzene of 25 μL was spread on the right ear for 20 minutes, or croton oil of 25 μL was also spread on the right ear, 4 hours later, the swelling of right ear was calculated (mass of right ear-mass of left ear). 10 g/L carrageenan of 20 μL was subcutaneously injected into the right foot, 3 hours later, the swelling degree was calculated (The difference of right foot and left foot); and the level of prostaglandin E in the inflammatory exudates was measured. ⑨ t test(t' test for heteroscedasticity) was used for comparing the difference in measurement data among groups.MAIN OUTCOME MEASURES: Pharmacological effect of Xiaohuoluo pills on secondary immune response, specific immunity, non-specific immunity and free radical injury as well as pain and many other inflammations in mice.RESULTS: Totally 628 NIH and ICR mice were involved in result analysis. ① The level of IgG and CIC of mice in the model group was significantly higher than that in the other 3 groups respectively (P ＜ 0.01),while the level of C3 was significantly lower than that in the other 3 groups (P ＜ 0.05 to 0.01). ② The swelling degree of mice in the diclofenac group and Xiaohuoluo pills group was significantly lower than that in the blank control group respectively ( both P ＜ 0.01). ③ The rosette rate of RBC-C3b receptor and RBC immune compound in the blank control group was significantly higher than that in the other 2 gro ups respectively (P ＜ 0.01). ④ The phagocytic index (K value )in the diclofenac group and Xiaohuoluo pills group was significantly lower than that in the blank control group, respectively (both P ＜ 0.01).⑤ IgM-type HC50 and the level of serum MDA of CY group and Xiaohuoluo pills group were obviously lower than those in the immune control group (P ＜ 0.01),while the level of C3 was higher than that of immune control group, there was no significant difference in the activity of serum SOD between CY group or Xiaohuoluo pills group and immune control group (P ＞ 0.05). ⑥The ratio of agar granulation tissue mass to body mass in the diclofenac group or Xiaohuoluo pills group was significantly lower than that in the model group(P ＜ 0.01).⑦ The times of distortion of mice within 20 minutes in the diclofenac group or Xiaohuoluo pills group were signifi cantly less than those of model group(P ＜ 0.01,0.05).⑧The ear swelling degree of dimethylbenzene-induced inflammatory models and croton oil-induced inflammatory models,and foot swelling degree of carrageenan-induced acute inflammatory models as well as the level of prostaglandin E in the inflammatory exudates in the diclofenac group were significantly milder or lower than those in the model group(P ＜ 0.05 to 0.01),and the level of prostaglandin E in the inflammatory exudates in the Xiaohuoluo pills group was significantly lower than that in the model group (P ＜ 0.01).CONCLUSION: Xiaohuoluo pills possess pharmacological effects of immunosuppression, anti-proliferative inflammation, analgesia and antioxidation.

Objective To explore the predictive value of soluble growth STimulation expressed gene 2(sST2) on major adverse cardiovascular events(MACE) of acute myocardial infarction (AMI) after percutaneous coronary intervention (PCI).Methods The study included 148 patients with first episode of AMI admitted from January 2015 to May 2016 in the heart center of the First Hospital of Lanzhou University.Serum sST2 level before PCI was tested and all patients were followed up clinically for 6 months after PCI.Results 1.MACEs were found in 23 patients during follow up.The sST2 leveles were significantly higher in patients with MACEs than the non-MACE group [(44.50 ±5.32) ng/ml vs.(23.59±1.15) ng/ml, P=0.001].Pearson correlation analysis showed that serum sST2 were positively correlated with MACE and type Ⅲ procollagen amine terminal peptide (PⅢNP) but was not correlated with NT-proBNP.2.Serum sST2 found to be correlated with the body mass index, blood pressure, triglycerides, aspartate aminotransferase, left ventricular end-systolic volume (LVESV) and left ventricular ejection fraction (LVEF).3.The area under the ROC curve of sST2 to predict the occurrence of MACE after PCI was 0.787 which was higher than that of NT-proBNP.The area under curve of sST2 combined with NT-proBNP was 0.820.4.The survival rate of patients with serum sST2 level ≤29 ng/ml was higher than patients with sST2>29 ng/ml in 6 months after PCI.Conclusions sST2 is affected by a variety of factors.sST2 combined with NT-proBNP can improve the predictive value of MACE after PCI, and higher the level of sST2, higher the mortality rate in 6 months after PCI.

Objective To study the levels of serum acute-phase proteins,interleukin-6(IL-6) and tumor necrosis factor-?(TNF-?) in different stages of diabetic nephropathy in type 2 diabetes mellitus(T2DM) and to explore the clinical significance.Methods One hundred and five patients with T2DM diagnosed by WHO(1999) criteria were divided into three subgroups according to their urinary albumin excretion rate(UAER): 34 cases normal UAER group(NA group),31 cases microalbuminuria group(MA group) and 30 cases clinical proteinuria group(CA group).Thirty-three healthy individuals were selected as controls(NC group).The levels of acute-phase proteins including C reactive protein(CRP),?_1-acid glycoprotein(?_1-AAG),ceruloplasmin(CER) and haptoglobin(THP) were measured with immunoscattering assay,The levels of IL-6 and TNF-? were detected with electrochemiluminescence immunoassay.Results The levels of serum acute-phase proteins,IL-6,TNF-? were significantly higher in patients with T2DM than those in NC group(all P

Objective To investigate the effect of total glucosides of paeong (TGP) on the liver lipid infiltration and fibrosis in rats with non-alcoholic fatty liver disease (NAFLD) induced by fructose and high-fat diet. Methods Fructose-high-fatty induced NAFLD rat model was established. Metformin ( MET,200 mg · kg-1 ) and TGP (200,100 mg · kg-1 ) was intragastrically given to the rats in the treatment group,TGP high dose and low dose group,respectively. Normal control group and model control group was intragastrically treated with equivalent distilled water (10 mL·kg-1 ). At the fourth week after the treatment,all the rats were sacrificed and the indices such as serum fasting blood glucose(FBG),INS,insulin sensitivity index (ISI),triglycerides(TG),apelin-36,visfatin,alanine aminotransferase(ALT),aspartate aminotransferase(AST),free fatty acid (FFA),collagen Ⅲ(COLⅢ),collagen Ⅳ(COLⅣ) were determined. Hepatic content of TG was determined and the pathological changes in the liver tissues were observed under the microscope. Results As compared with the model control group,TGP effectively decreased FBG,INS,TG in serum and liver tissues,activity of ALT and AST in serum and content of FAA,Apelin, Visfatin,COLⅢ and COLⅣ,with significant differences (P<0. 05 or P<0. 01). TGP alleviated lipid infiltration and fibrosis in rat liver tissues. Conclusion TGP can inhibit effectively lipid infiltration and fibrosis of NAFLD rats,probably through improving glucolipid metabolism and antogonizing insulin resistance.

Objective To evaluate the effectiveness of treating glioma in combination with drugs multiply by comparing the size of tumor and the survival time of different groups in rat glioma after targeted blood-brain barrier (BBB ) disruption by MRI-guided focused ultrasound.Methods The stereotaxis instruments and the 10 μl gas-tight syringes were used to inject gliosarcoma cells into the targeted area of the brain in 50 male Sprague-Dawley rats.The glioma-bearing rat model was established.Each rat received either:(1 )no treatment (control;n =8);(2)single liposomal doxorubicin (DOX;n = 10);(3)multiple DOX (n =10);(4)single Avastin (AVS)and DOX (n =10);(5)multiple AVS and DOX (n =10).The SonoVue microbubble ultrasonic contrast agent and DOX or AVS were injected into the tail vein respectively on day 12 after implantation.The tumor size was measured by MRI on pre-treatment,immediacy and once a week of post-treatment after targeted BBB disruption by focused ultrasound,and the life span in rat glioma was recorded.Results The mediam survival of different groups in rat glioma(The range of the life span 13-90 d):no treatment (7 d);single DOX (12 d);multiple DOX (1 5 d);single AVS + DOX (22 d), multiple AVS+ DOX (30 d).There was significant difference of the groups on mediam survival comparison (P < 0.01 ).The tumor growth pattern after post-treatment of different groups in rat glioma except control:single DOX was noticeable fast and multiple AVS+DOX was visibly delayed comparable to other groups,and finally the tumor size of multiple AVS + DOX even became small.Conclusions The microbubble blasting enhances the local tissue permeability and promotes the drug delivery of chemotherapy and anti-angiogenesis locally in glioma-bearing rats by MRI-guided focused ultrasound.Especially,the combination with drugs multiply has a synergism efficacy that may enhance the effectiveness of chemotherapy,reduce tumor growth,and even become small of the tumor size,and increase survival time significantly after BBB disruption.

Objective To evaluate the effectiveness of treating glioma in combination of two kinds of drugs by comparing the size of tumors and the survival time of different groups in rat glioma after targeted blood‐brain barrier (BBB) disruption by focused ultrasound under MRI‐guide. Methods The stereotaxis instruments and the 10 μl gas‐tight syringes were used to inject gliosarcoma cells into the targeted area of the brain in 40 male Sprague‐Dawley rats. The glioma‐bearing rats models were established. Rats were divided into 4 groups to receive different treatment :(1) no treatment (control, n = 8), (2) IV Avastin (Avastin only, n =10), (3) IV liposomal doxorubicin (DOX only, n =10), (4) IV Avastin and liposomal doxorubicin (Avastin+DOX, n =10). The SonoVue microbubbles and DOX or Avastin were injected into the tail vein respectively on the 12th day after implantation. The tumor size was measured by MRI on immediacy, once a week after targeted BBB disruption by focused ultrasound, and the life span in rat glioma was recorded. Results The average survival time of different groups in rat glioma was as follows :no treatment(17 ± 4)d, Avastin(20 ± 4)d, DOX(25 ± 5)d, DOX+ Avastin(40 ± 5)d. The tumor size after post‐treatment of different groups in rat glioma was as follows :no treatment(5 7.0 ± 4 3.0)mm, Avastin(4 3.0 ± 2 5.0)mm, DOX(4 1.2 ± 3 1.0)mm, DOX + Avastin(2. 20 ± 1. 30)mm. There was significant increased in average survival time and decreased in tumor size after a combination treatment DOX+ Avastin compared with other groups( P < 0 0.1). Conclusions The microbubble blasting by MRI‐guided focused ultrasound enhances the local tissue permeability and promotes the drug delivery of chemotherapy and anti‐angiogenesis locally in glioma‐bearing rats. Especially, the combination of two kinds of drugs has a synergism efficacy that may reduce tumor growth and increase survival time significantly after BBB disruption.

Objective Small-for-size syndrome (SFSS) is a common and serious problem after living donor liver transplantation (LDLT) of small grafts.To prevent SFSS by selecting large enough graft,enlarging outflow tract,and controlling the portal vein pressure and flow during LDLT.Methods 113 adult LDLT recipients were reviewed from Dec.1,2007 to Nov.30,2009.Enlarging the portal outflow tract by the incision of the anterior rim of the orifice of the right hepatic vein (RHV),modificating graft inflow,and selecting large enough graft were done to prevent SFSS.The relationship between the patients' GRWR,portal vein flow,portal vein pressure and the occurrence of SFSS was analyzed.Results All patients received the outflow orifice modification.The portal vein pressure and the portal vein flow were decreased after spleen artery ligation.No SFSS ocurred.Conclusion Selecting large enough liver graft,and enlarging portal vein inflow and outflow were safe for the LDLT recipients,and can effectively prevent SFSS.

BACKGROUND: Some experiments indicated that applying rosiglitazone on diabetic animals lacking of insulin could not increase insulin and lower blood glucose obviously, which showed that rosiglitazone did not stimulate the excretion of rosiglitazone. The action of rosiglitazone in improving insulin resistance and the effects on the functions of liver and kidneys need more investigations.OBJECTIVE: To investigate whether rosiglitazone can improve the insulin resistance of rats with hyperlipemia, and analyze the possible mechanism.SETTINGS: Guangzhou Hospital of Traditional Chinese Medicine; Guangzhou Institute of Traditional Chinese Medicine and Materia MedicaDESIGN: A stratified randomized controlled animal trial.MATERIALS: Sixty-four Sprague-Dawley (SD) rats (Batch No. 2002A024), SPF grade, half male and half female,weighing 150 to 180 g, aged 6 to 8 weeks were purchased from Guangdong Medical Experimental Animal Center.Normal feed (total quantity of heat 6.9 kJ/g) was enriched with 23% protein, 53% carbohydrate and 5% fat. High fat emulsion (total quantity of heat 15.5 kJ/g) was enriched with 200 g/L lard, 200 g/L cholesterol, 10 g/L bile salt ox,200 g/L propylene glycol, 200 g/L tween-80. High fat and sugar feed (total quantity of heat 21.0 kJ/g) was enriched with 15% protein, 51% carbohydrate and 30% fat after adding 100 g/L glucose, 200 g/L lard and 100 g/L yolk powder then mixing and baking. Rosiglitazone was from GlaxoSmithKline Co Ltd. (Tianjin) (5 mg/tab, Batch No.02110012). Gliclazide was from Servier International and Tianjin Hua Jin Pharmaceutical Factory (100 mg/tab, Batch No.00232).METHODS: The experiment was carried out in Guangzhou University of Traditional Chinese Medicine from April to July in 2003. ① Sixty-four Sprague-Dawley rats, 16 of which were randomly sampled as the normal control group and had been fed with normal feed for 6 weeks. The others were modeled after medical literatures, each one was administered with high fat emulsion (10 mL/kg) by gavage once a day for 14 days. Rats whose FBG≥6.1 mmol/L or 2hBG≥7.8 mmol/L were selected, randomized into 3 groups according to body mass and blood glucose, i.e., negative control (model)group, rosiglitazone group and gliclazide group, there were 16 rats in each group. Except the normal control group, rats in the rosiglitazone group and gliclazide group were gavaged with rosiglitazone for 5 mg/kg and gliclazide for 100 mg/kg respectively, and those in the model group were gavaged with distilled water. All of the rats were fed with high-fat feed once a day for 28 days. From the 21st day, high fat emulsion was added once a day for 7 days. After fasting for 18 hours from the last administration, all the rats were recorded for FBG and administered dextrose 2.78 mol/10 mL .kg or dextrose and drug mixture 10 mL/kg by body mass. Two hours'later, 2hBG was recorded. ② Blood samples were collected from orbital plexus and serum was prepared for detecting the biochemical indexes and immunological indexes in serum, i.e., fasting serum glucose(FSG), total cholesterol (TC), triglyceride (TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), alanine aminotransferase (ALT), aspartate aminotransferase (AST),blood urea nitrogen (BUN), creatinine (Cr), tumor necrosis factor alpha (TNF-α) and fasting insulin (FINS). The insulin sensitivity index (ISI) was calculated: ISI=ln [1/ (FINS content×FBG content)]. After the rats were killed, their liver suspension was prepared for measuring the levels of TG, superoxide dismutase (SOD), glutathione (GSH) and malondialdehyde (MDA).MAIN OUTCOME MEASURES: ① FBG and 2hBG; ② FSG, blood lipids, TNF-α, FINS and ISI in serum; ③ TG, GSH, SOD and MDA in liver cells; ④ ALT, AST, BUN and Cr in serum. RESULTS: ① Results of FBG and 2hBG: The FBG and 2hBG in the rosiglitazone group [(3.2±0.3), (6.3±1.2) mmol/L]were lower than those in the modelcontrol group [(3.8±0.5), (8.1±2.1) mmol/L, P ＜ 0.01]. The FBG in the gliclazide group [(3.3±0.7) mmol/L] was lower than that in the model control group. ② Results of FSG, blood lipids, TNF-α, FINS and ISI: The FSG, TNF-α and FINS in the rosiglitazone group were (4.2±1.2) mmol/L, (246±45) μg/L and (133±45) pmol/L respectively, which were lower than those in the model control group [(6.6±1.5) mmol/L, (294±65) μg/L, (264±76) pmol/L,P ＜ 0.05-0.01], whereas ISI was higher than that in the model control group (-6.33±0.46, -7.46±0.95, P ＜ 0.01). The FSG and TNF-α in the gliclazide group [(4.1±1.1) mmol/L, (251±62) μg/L] were lower than those in the model control group (P ＜ 0.05-0.01). ③ Results of TG content, GSH deposit, SOD activity and MDA content in liver cells: The TG and MDA contents in liver cells in the rosiglitazone group [(1.00±0.38), (40±17) mmol/g] were lower than those in the model control group [(2.40±0.60), (171±63) mmol/g, P＜ 0.01], the GSH deposit and SOD activity [(51±14) mg/g, (583.45±50.01 ) nkat/g] were higher than those in the model control group [(2.40±0.60) mg/g, (450.09±66. 68) nkat/g, P ＜ 0.05-0.01].The TG and MDA contents in the gliclazide group [(1.20±0.38), (100±30) mmol/g] were lower than those in the model control group, whereas the GSH deposit [(46±15) mg/g] was higher than that in the model control group. ④ Results of ALT, AST, BUN and Cr in serum: The serum contents of BUN and Cr in the rosiglitazone group [(14.3±3.8) mmol/L,(33±9) μmol/L] were lower than those in the model control group [(19.2±5.6) mmol/L, (45±13) μmol/L, P ＜ 0.05].CONCLUSION: Both rosiglitazone and gliclazide can improve the insulin resistance induced by high fat feed.Rosiglitazone is superior to gliclazide in decreasing the high insulin level, decreaseing serum levels of BUN and Cr,improving reduced GSH deposit and enhancing SOD activity.

BACKGROUND: Silibinin has broad pharmaceutical effects, such as anti-free radicals, anti-lipid peroxidation, anti-lipoid oxidase, anti-glutathione (GSH) depletion, anti-neoplastic and serum lipid-lowering effects. Clinically, silibinin is often used in treating alcoholic liver disease. OBJECTIVE: To investigate the pharmacological mechanism of silibinin for alcoholic fatty liver in rats. DESIGN: Randomized and controlled study.SETTING: Guangzhou Hospital of Traditional Chinese Medicine.MATERIALS: The experiment was conducted at the Animal Experimental Laboratory of Guangdong Pharmaceutical Institute from August to October 2003. Totally 57 SD rats, without unusual bacteria, weighting (150±10)g and of either gender, were selected. Yiganling tablets containing 38.5 mg silibinin were produced by Zhuzhou No.3 Pharmaceutical Factory (Batch No. 20020808).METHODS: Among the 57 SD rats, 18 rats were regarded as normal control group. Rats in normal control group were administered with normal saline by gavage, and fed with normal food and distilled water in place of alcohol for 10 weeks. Rats in model group and silibinin group were fed with high-calorie food and 100 mL/L alcohol for 6 weeks to establish model of rat alcoholic fatty liver. The other rats were divided into model control group (n=18) and silibinin group (n=21). Rats in model control group were treated with distilled water while those in silibinin group were treated with 100 mg/kg silibinin. Meanwhile, 100 mL/L ethanol and hyperalimentation feed were given for 4 weeks. After animals were killed, TG, SOD, GSH and MDA levels were measured with liver suspension.MAIN OUTCOME MEASURES: Contents of serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (AKP), total cholesterol (TC), triacylglycerol (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), tumor necrosis factor (TNF)-α , and transforming growth factor (TGF)-β1.RESULTS: All the 57 rats entered the final analysis. Silibinin could inhibit the activities of serum AST, ALT and AKP [(2 550.5±400.1), (533.4±100.0), (2 217.1±750.2)nkat/L], and the differences were significant as compared with those in model control group [(3 600.7±666.8), (800.2±100.0), (2 900.6±1 333.6) nkat/L, P ＜ 0.05-0.01]. Contents of TG, LDL-C, TNF-α and TGF-β1 in silibinin group [(1.8±0.8), (0.17±0.04), (6.66±1.38), (24.1±4.1) mmol/L] were lower than those in model group [(2.8±1.4), (0.20±0.05), (7.81±1.06), (28.8±6.3) mmol/L] with significant differences (P ＜ 0.05-0.01). Silibinin could increase the content of HDL-C but decrease the contents of TG and MDA (P ＜ 0.05-0.01), and improve SOD activity as well as hepatocyte and fatty degeneration (P ＜ 0.01).However, it had no obvious effect on the content of reduced estathion (P ＞ 0.05).CONCLUSION: Silibinin can inhibitthe formation of alcoholic fatty liver in rats. The pharmacological mechanism of silibinin may involve anti-oxidation, removing free radicals, inhibiting lipid peroxidation, regulating blood lipid component, reducing fatty sediment in liver, and anti-immunoinflammation and anti-hyperplasia effects.