Objective To prepare Tongshuan Jiuxin pH-Dependent Delayed-release Capsula and study its pharmacokinetics and pharmacodynamics in dogs in vivo. Methods Borneol and the extracts of Cortex Moutan, Rhizoma Chuanxiong, and Rhizoma Cyperi prepared by CO2 supercritical fluid extraction method were solidified or included with ?-cyclodextrin. Pellets were prepared by means of powder layering with the solidified extracts and borneol. The pH-dependent delayed-release pellet system was prepared by coating with HPMC, Eudragit L-30D-55, and Eudragit L100-S100 (1∶5) combinations, respectively. Tongshuan Jiuxin pH-Dependent Delayed-release Capsula was prepared by mixing the three kind of pellets at the ratio of 1∶1∶1. The concentration of paeonol in plasma was determined by HPLC and the pharmacodynamic parameters were evaluated by serum pharmacology method. Results The results from the paeonal concentration in plasma showed that the mean residence time (MRT) in vivo were 8.04 h for Tongshuan Jiuxin pH-Dependent Delayed-release Capsula and 2.89 h for Tongshuan Jiuxin Tablet, and the relative bioavailability was 126.3%. Meanwhile, the results from the pharmcodynamic parameters evaluated by serum pharmacology method showed that the MRT were 11.27 h for Tongshuan Jiuxin pH-Dependent Delayed-release Capsula and 5.94 h for Tongshuan Jiuxin Tablet, and the relative bioavailability was 129.1%. Conclusion Tongshuan Jiuxin Tablet has the characteristics of rapid absorption, qucik elimination, and shorter action-maintaining time. Whereas Tongshuan Jiuxin pH-Dependent Delayed-release Capsula has the characteristics of rapid absorption, prolonged and relaxed effective action compared with Tongshuan Jiuxin Tablet.

Objective To clarify whether the NADPH oxidases (NOXs) family contributed to the reactive oxygen species (ROS) production and subsequent interstitial fibrosis in unilateral ureter obstruction (UUO) rats.Methods Male Wistar rats were randomly divided into sham operation group (n =8),sham operation + apocynin treatment group (n =8),UUO operation group (n =8) and UUO operation+apocynin treatment group (n =8).Either vehicle or apocynin (100 mg/kg per day) were given by gavage for 7 days after surgery.Rats were sacrificed at 7th day.ELISA was used to detect the activity of superoxide dismutase (SOD) and catalase (CAT),and the level of 8-iso-prostaglandin F2alpha (8-isoPGF2α) in renal tissue.Western blotting was used to detect the protein expressions of NADPH oxidase subunit NOX2 and NOX4,α-smooth muscle actin(α-SMA),collagen Ⅰ (COL-Ⅰ) and the level of ERK1/ 2 phosphorylation (p-ERK1/2).Results UUO rats with vehicle displayed increased oxidative stress,as measured by renal tissue 8-iso-PGF2α,accompanied with increased renal expression of NADPH oxidases (NOX2,1.5-fold and NOX4,1.7-fold,respectively),compared with sham-operated rats (P ＜0.05).Furthermore,vehicle treated UUO rats showed increased renal COL-Ⅰ and α-SMA levels,compared with sham-operated rats (P ＜ 0.05).ERK1/2 was also activated as detected by p-ERK1/2 expression in UUO rats with vehicle (P ＜ 0.05).Apocynin treatment significantly decreased renal tissue 8-iso-PGF2α level and expressions of NOX2 (-28.7％) and NOX4 (-31.0％) in UUO rats,respectively,compared with vehicle treated rats (P ＜ 0.05).And significant decrease of COL-Ⅰ (-26.4％) and α-SMA expression (-80.0％) were also observed (P ＜ 0.05).The activation of ERK1/2 in UUO rats was greatly inhibited by apocynin treatment (P ＜ 0.01).Despite the pronounced dysregulation of pro-oxidative NOXs family,no compensatory increase of antioxidative enzyme activities occurred.Conclusion The NOXs family contributes largely to the production of ROS and subsequent interstitial fibrosis after ureter ligation,and inhibition of the NOXs family may be a choice for preventing interstitial fibrosis.

Objective To detect the levels of IL-9,IL-17,and IFN-γ in CD4+T cells from patients with rheumatoid arthritis (RA).Methods The peripheral blood mononuclear cells (PBMCs) from patients with RA and healthy controls were obtained,then the CD4+ T lymphocytes were tested by immunomagnetic beads.The protein levels of IL-9,IFN-γ and IL-17 were measured by flow cytometry (FCM).The mRNA levels of IL-9,IL-17,RORγt and IFN-γwere also detected by qRT-PCR.Data were analyzed by comparison between groups using variance analysis,and Pearson's correlation analysis was used for linear correlation analysis.Results The isolation of untouched human CD4+ T cells from PBMC was effective and its purity was over 90％.The protein levels of IL-9,IL-17,IFN-γwere higher in patients with active RA as compared with patients with inactive RA (P＜0.01) which were (1.62±0.23)％ vs (1.15±0.24)％(P＜0.01),(1.47±0.20)％ vs (1.04±0.26)％(P＜0.01) and (8.1±0.6)％ vs (6.9±1.0)％(P＜0.01) respectively,so did the patients with RA when compared with healthy controls (P＜0.01).The mRNA levels of IL-9,IL-17,RORγt and IFN-γ were higher in patients with active RA as compared with inactive RA patients (P＜0.01),which were (3.0±0.6) vs (1.8±0.4) (p＜0.01) (4.2±0.9)vs (2.3±0.7) (P＜0.01),(4.1±0.7)vs (2.9±0.3) (P＜0.01)and (4.0±0.8)vs (2.3±0.6) (P＜0.01) respectively,so did the patients with RA when compared with healthy controls (P＜0.01).Intracelluar IL-9 levels were positively correlated with IL-17 (r=0.632,P=0.001),IFN-γ (r=0.515,P=0.008),DAS28 (r=0.519,P=0.009) and ESR (r=0.857,P=0.038) but had no correlation with CRP (r=0.38,P=0.61).Conclusion The levels of IL-17,IL-9,IFN-γare higher in the PBMCs of RA patients,and these cytokines may participate in the pathogenesis of RA.

Animals ; Calcineurin ; metabolism ; Diet, High-Fat ; Dietary Fats ; administration & dosage ; Male ; Myocardium ; metabolism ; Physical Conditioning, Animal ; physiology ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Superoxides ; antagonists & inhibitors

Antineoplastic Agents ; adverse effects ; therapeutic use ; Diarrhea ; chemically induced ; Drug Delivery Systems ; methods ; Exanthema ; chemically induced ; Humans ; Leukopenia ; chemically induced ; Lung Diseases, Interstitial ; chemically induced ; Myocardial Infarction ; chemically induced ; Neoplasms ; drug therapy ; Tumor Lysis Syndrome ; etiology

Objective To extract characteristic parameters of ECG signals a new method of non-invasive diagnosis for coronary heart disease with artificial neural network. Methods ECG signals were digitized with A/D converter and filtered to eliminating the noise. Span of QRS interval, R-R interval,and voltage of S-T segment of filtered ECG were detected. These 3 characteristics were as the input parameters of the input layer. Samples were trained with an improved 3-layers back propagation(BP) artificial neural network, as trained samples. The non-trained samples were recognized with these BP neural networks. Results After 12 samples had been trained about 1500 times, the BP neural network could accurately distinguish samples of coronary heart disease from the trained samples and also recognize 20 non-trained samples, 19 to be correct except one. Conclusion It is showed that based on BP network and characteristic parameters of ECG, a new and promising method of non-invasive diagnosis for coronary heart disease has been found.

Objective To investigate the value of the combined test in the diagnosis of thalassemia and iron deficiency anemia (IDA) .Methods From August 2013 to February 2015 ,36 patients with thalassemia ,34 patients with IDA ,and 30 healthy people who had undergone physical examination were enrolled in the study .The blood samples of those people were tested ,and items of the combined test included content of red blood cell volume(MCA) ,red blood cell volume distribution width(RDW) ,hemoglobin(Hb) electrophoresis and red blood cell(RBC) .Results The patients with IDA or thalassemia had reduced MCA and RBC fragile ,pa‐tients with IDA had increased RDW ,and patients with thalassemia had increased HbA2 ,compared with the control group the differ‐ences were all statistically significant(P<0 .05) .The sensitivity of RDW to IDA was 70 .6% ,and to thalassemia was 77 .8% ,the difference was not statistically significant (P> 0 .05) .The sensitivities of MCV ,Hb electrophoresis ,RBC fragility to thalassemia were 97 .2% ,88 .9% ,77 .8% respectively ,and the specificity were 80 .0% ,90 .0% ,83 .3% respectively .The sensitivities of MCA test combined with Hb electrophoresis ,hemoglobin electrophoresis combined with RBC brittleness test and parallel combined test of MCA ,Hb electrophoresis and RBC brittleness to thalassemia were 100 .0% ,97 .2% ,100 .0% respectively ,which were significantly higher than those of single tests ;the specificities were 96 .7% ,100 .0% and 100 .0% respectively ,which were significantly higher than those of single tests ;the differences were statistically significant(P<0 .05) .Conclusion The application of hematological pa‐rameters ,Hb and RBC in the diagnosis of anemia and IDA could significantly improve the diagnostic accuracy ,and it is worthy of popularization and application .

Objective To study the effect of low molecular weight heparin on the growth and metastasis of hepatocarcinoma in vivo Methods Metastatic model simulating human hepatocarcinoma was established by orthotopic implantation of the tumor tissue into nude mice Animals were randomly divided and submitted to different treatment groups: control group treated with nornal saline, chemotherapy group with 5 FU and CDDP i p , Fragmin group (low molecular heparin), combination group After 5 weeks of treatment, tumor volume、 microvessel density (MVD)、 VEGF smoothmuscle actin (SMA) and metastasis in Fragmin group significantly decreased and tumor inhibitive rate increased ( P

Objective To explore the effects of lycopene on interleukin-6 (IL-6) expression and motor function after spinal cord injury in rats. Methods 36 healthy adult Sprague-Dawley rats were randomly divided into control group (A), methylprednisolone sodium succinate (MP) treatment group (B) and lycopene treatment group (C) with 12 rats in each group, and spinal cord injury model at T9 was established with modified Allen's technique (10 g×25 mm). 30 minutes after modeling, group A received no treatment, group B was injected MP 30 mg/ kg, group C was given lycopene 20 mg/kg. They were tested with inclined plate test 1 day, 3 days and 7 days after injury. The expression of IL-6 was examined with immunohistochemistry, then. Results The inclined plate test scores were higher in the group C than in the group A 1 day and 7 days after injury (P<0.05), and in the group B than in the group A 1 day, 3 days and 7 days after injury (P<0.05). The expression of IL-6 was significantly lower in the groups B and C than in the group A 1 day, 3 days, 7 days after injury (P<0.001). Conclusion Lycopene can inhibit the expression of IL-6 in acute spinal cord injury to reduce the inflammation and facilitate the recovery of nerve and motor function.

Objective To explore clinical value of cardiac MRI feature tracking (CMR-FT) in evaluation of left ventricular global and regional myocardial strain in hypertrophic cardiomyopathy (HCM).Methods Totally 60 patients with HCM (HCM group) and 10 healthy volunteers (control group) were enrolled and underwent cardiac MR.MR Sequences included fast imaging employing steady state acquisition (FIESTA) and late gadalinum enhancement (LGE) at ventricular short-axis,two-chamber and four-chamber planes.The patients in HCM group were divided into LGE negative subgroup and LGE positive subgroup.CMR-FT processing software was used to measure myocardial global radial peak strain (GPSR),global circumferential peak strain (GPSC) and global longitudinal peak strain (GPSL).The radial,circumferential and longitudinal peak strain (PSR,PSC and PSL) at the apex,middle and basal parts of left ventricular were also measured as well.Resuits GPSR,GPSC,GPSL in LGE positive subgroup,LGE negative subgroup and control group had significant differences (all P＜0.05),and showed upward trends.Except PSL at the apex had no significent difference among three groups,PSR,PSC and PSL at the apex,middle and basal parts had significant differences (all P＜0.05),and also showed upward trends.There were positive correlations between the LVEF,SV and GPSR,GPSC,GPSL (all P＜0.05).The area under ROC curve of GPSR,GPSC and GPSL in diagnosis of HCM were 0.79,0.82,0.77 (all P＜0.05),and the area under ROC curve of GPSC was the largest.Conclusion The CMR-FT technology can find myocardial strain dysfunction in HCM sensitively,and the longitudinal strain is damaged earlier or worse than circumferential and radial strains.