Objective To observe the curative effect and safety of recombinant tissue plasminogen acti-vator (rt-PA) in acute ischemic stroke (AIS) patients in more than 15 points of NIHSS scores and less than 4.5 h in onset time. Methods One hundred and twenty-seven cases with AIS in more than 15 points of NIHSS scores and less than 4.5 h in onset time were included into the study. According to the patients′ option to accept the intravenous thrombolytic therapy , 68 patients received intravenous thrombolysis with alteplase as the treat-ment group, 59 patients did not receive intravenous thrombolytic therapy as the control group. The incidence of intracerebral hemorrhage and mortality were observed in the two groups after thrombolytic therapy. Their nerve function defect was scored according to the NIHSS scores before and after treatment at day 7 and day 30. Their living ability was assessed by mRS in modified Rankin chart after the treatment at the day 90. Results The NIHSS scores were significant lower in the 2 groups after therapy (P < 0.05). The NIHSS scores at each time point and mRS scores in the treatment group were lower than the control group (P < 0.05). No significant differ-ence was found in the incidence of intracerebral hemorrhage and mortality between the 2 groups , although these were higher in the treatment group than in control group (1.5% vs 0%, 7.5% vs 5.1%, P > 0.05). Conclusion Intravenous rt-PA thrombolytic therapy is effective and safe for AIS whose NIHSS scores are more than 15 points and onset time are less than 4.5 h.

Objective To study the clinical effect of Fufangqiaoruisu granule in the treatment of children with bronchial asthma.Methods 152 children with bronchial asthma were randomly divided into treatment group and control group.All the patients were treated with based therapy,and the patients in the control group were treated with montelukast,the patients in the treatment group received montelukast/Fufangqiaoruisu granule.The clinical symptoms such as cough,asthma were compared,and also the total effective rate.Results The disappear time of clinical symp-toms of cough,ashma,moist rale in the treatment group were (3.8 ±1.0) days,(3.5 ±0.8) days,and (2.1 ± 0.6)days,which were much shorter than (5.2 ±0.7)days,(4.7 ±0.9)days,(3.0 ±0.5)days in the control group, the differences were statistically significant(t =4.56,5.12,4.89,all P <0.05).After treatment,the FVC,FEV1 and PEF in the treatment group were (4.9 ±1.7)L,(3.8 ±0.6)L and (3.9 ±0.5)L/min,which in the control group were (3.2 ±1.2)L,(2.1 ±0.8)L and (2.8 ±0.5)L/min,(t =5.12,4.87,5.32,all P <0.05).The total effective rate of the observation group was 92.1%,which of the control group was 73.7%,the difference was statistically significant(χ2 =1.62,P =0.027).Conclusion Fufangqiaoruisu granule shows satisfactory clinical efficacy in the treatment of bronchial asthma,and it is worthy of clinical use.

Objective To analyze the effect of non -xanthine adenosine receptor antagonist (SLV320)on the ventricular remodeling and renin -angiotensin -aldosterone system (RAAS)in animal experimental models of chronic heart failure (CHF).Methods The 40 healthy male New Zealand rabbits were received adriamycin by intra-venous injection to establishing the experimental animal models and were randomly divided into 4 groups,which were high -dosage group (injected with SLV320,10.0μg·kg -1 ·d -1 ),medium -dosage group (injected with SLV320, 5.0μg·kg -1 ·d -1 ),low -dosage group (injected with SLV320,2.5μg·kg -1 ·d -1 )and furosemide group (fed with furosemide,2.0mg·kg -1 ·d -1 ).Each group had 10 rabbits and continuous treated for one week.The indexes of plasma renin activity (PRA),angiotensinⅡ (AngⅡ),aldosterone (ALD)and beta ntriuretic peptide (BNP)were detected at pre -and post -treatment,and compared among 4 groups.The indexes of left ventricular end -systolic dimension (LVESD),left ventricular end -diastolic dimension (LVEDD),left ventricular posterior wall (LVPW), left ventricle ejection fraction (LVEF),left ventricular fractional shortening (LVFS)and E /A at pre -and post -treatment were detected by echocardiography and compared among 4 groups.The wet weigh of the left and right ventri-cle were weigh accurately.And the indexes of left ventricle weight index (LVWI)and the body weight index (BWI) were calculated and compared among 4 groups.Results The plasma levels of PRA,AngⅡ,ALD and BNP were no different among 4 groups before study (all P >0.05).The sequence of 4 groups on the plasma levels of RAAS indexes was high -dosage group 0.05).The sequence of 4 groups on the levels of LVEF and LVFS was high -dosage group >medium -dosage group >low -dosage group >furosemide group,and the sequences of LVESD,LVEDD,LVPW and E /A were high -dosage group

Objective To investigate the inhibitory effects of hepatitis B virus (HBV) S gene-specific antisense locked nucleic acid (LNA) on HBV replication and expression in HepG_22.2.15 cells,and to screen the effective short sequence of LNA.Methods Four different lengths of short sequence of antisense locked nucleic acid which were complementary to the initiator of HBV S gene were designed,synthesized and transfected by cationic liposomes into HepG_22.2.15 cells.The HBsAg and HBV DNA of supematant was tested by enzyme linked immunoadsorbent assay(ELISA) and real-time fluorescent quantitative PCR(FQ-PCR) at 24,48 and 72 hours after treatment.LNA's cyto-toxicity on cell was evaluated by MTT method.Results Four different lengths of short sequence of LNA inhibi-ted the expression of HBsAg and the replication of HBV DNA with the inhibition rates of 46.58%,54.38%,72.43% ,69.92% and 27.09% ,28.77% ,34.71% ,32.68% respectively after 72 hours.There's no obvious tox-icity on cell.Conclusion Antisense LNA that targeting at HBV S gene has strong inhibition on HBV in vitro,and the optimal length of LNA sequence might be in the range of 15 base to 25 base.It has a therapeutic potential in the treatment of patients infected with HBV.

This study was aimed to observe the effects of Gui Curcuma extract on proliferation, collagen production, and matrix metalloproteinase (MMP) expression by hepatic stellate cells (HSC-LX2). HSC-LX2 were cultured in DMEM broth (10% FBS), then treated with Gui Curcuma extract (with the concentration of 0, 22.5, 45, 90 μmol·L-1) for 24 h. The proliferation of HSC-LX2 was measured by MTT assay; injury in HSC-LX2 was indicated with LDH re-lease; collagen I production was detected by ELISA; and MMP-l expression was determined by Western blot. The re-sults showed that Gui Curcuma extract (with the concentration of 22.5, 45, 90 μmol·L-1) dose-dependently inhibited proliferation of HSC-LX2 by 16.2%, 43.9%, 59.4% in MTT assay, respectively. The IC50 was 59.1 μmol·L-1. There was no significant impact on LDH release. The Gui Curcuma extract (with the concentration of 45, 90 μmol·L-1) can significantly reduce the expression of collagen I level (P< 0.01), whereas MMP-1 expression was significantly uplift-ed (P< 0.05) by Gui Curcuma extract (with the concentration of 45, 90 μmol·L-1) in Western blot. It was concluded that Gui Curcuma extract had the potential to prevent hepatic fibrosis, through inhibiting proliferation and collagen I production, and increasing MMP-1 protein expression.

Objective: To explore the effects of ligustrazine on the secretion of hydrogen sulfide in the ventricular tissues of rats under physiological condition.Methods:32 rats were divided into control group,high dose group of ligustrazine(150?g/ml),medium dose group of ligustrazine(15?g/ml) and low dose group of ligustrazine(1.5?g/ ml) at random.The left and right ventricular tissues were incubated in 37℃ thermostatic water bath for 4 hours with Krebs solution as supernatant.After incubation of the ventricular tissues,the sensitive electrode-based method was used to detect the content of H2S in the supernatant.Results: In the left ventricular tissues,there were on dif-ference of the H2S level betweenthe 1.5?g/ml ligustrazine group(0.17?0.03),15?g/ml ligustrazine group(0.17?0.03)and control group.However,compared with control group, the H2S level in hige dose group of ligustrazine decreased obviously(P0.05),but the H2S level in the 150?g/ml ligustrazine group(0.46?0.09)was significantly lower than that in the control group(0.64?0.13)(P

Objective:To develope a method for the separation and preparation ginkgolic acid ? 1. Methods: Ginkgolic acids were extracted by alcohol, and adsorbed by silica gel to remove most of the polar impurities. It was preparated with RP HPLC. Results: The extraction ratio of ginkgolic acid ? 1 by this extraction process was above 84%, and the purity of ginkgolic acid ? 1 reached 98%. Conclusion: This procedure is simple and relatively effective.

Objective To observe the clinical effect of gifitinib combined with hydroxylcamptothecin pericardial perfusion in the treatment of patients with advanced non-small cell lung cancer(NSCLC) with pericardial effusion. Methods From January 2016 to September 2017,eighty-four cases of late NSCLC with pericardial effusion treated in the People′s Hospital of Jiaozhou were randomly divided into two groups according to the digital table,with 42 cases in each group.The control group was treated with gefitinib,and the observation group was treated with hydroxylcampto-thecin on the basis of the control group.The curative effect was evaluated after two courses of treatment in the two groups,and the clinical efficacy and adverse reactions were observed.Results The effective rates of the control group and the observation group were 47.6% (20/42) and 66.7% (28/42),respectively.The effective rate of the observa-tion group was significantly higher than that of the control group(χ2 =4.525,P<0.05).The effective rate of pericar-dial effusion was 33.3% (14/42) in the control group and 69.1% (29/42) in the observation group,the difference between the two groups was statistically significant( χ2 =10.720,P <0.05).There was no ststistically significant difference in the incidence rate of adverse reactions between the two groups during treatment(P<0.05).Conclusion Combination of gefitinib and hydroxylcamptothecin pericardial perfusion in the treatment of NSCLC with pericardial effusion has good tolerance and good safety for the patients.

Objective To study the distribution of hemodynamics in carotid artery under the fluid-solid interaction at the typical point of time during a single cardiac cycle, and to explore the mechanism of the formation and development of carotid atherosclerotic plaque. Methods Numerical analysis the blood flow characteristics within a cardiac cycle in carotid artery was analyzed by using computational method of fluid dynamics. Based on the hemodynamic parameters, the influences of the cardiac systole and diastole on the blood flow distribution were analyzed. Results The distribution of blood flow in the carotid artery within a typical cardiac cycle was obtained. Compared with the findings in cardiac diastole, a larger area of blood stasis at the entrance of external carotid artery was observed. In this area, the flow velocity, the wall pressure and the wall shear stress were all lower, while the arterial wall deformation and von Mises equivalent stress were larger. Conclusion Under fluid-solid interaction, the low blood flow in carotid artery causes blood reflux, resulting in the deposition of lipid, fiber and other large molecular materials. The low wall pressure produced“negative pressure” effect, thus the normal blood flow is changed, the flow velocity becomes slow, and the blood supply of the brain becomes insufficient. The low wall shear stress destroys the blood flow near the wall, causing the increase of platelet activity and intimal hyperplasia. The larger arterial wall deformation variable and von Mises equivalent stress can cause stress concentration and increase vascular rupture risk.