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 develop neural stem cells(NSCs) which can stably express exogenous brain-derived neurotrophic factor(BDNF) in vitro. Methods NSCs from the subependymal zone of embry-onic day 14.5(E14.5) rat brain were purified by limiting dilution assay and then infected with supernatant of recombinant retrovirus pLXSN-BDNF and retrovirus pLXSN. The original copy numbers of exogenous gene templates from three groups NSCs(pLXSN-BDNF viral infection group, pLXSN viral infection group, control group) were detected by fluorescent quantitative PCR(FQ-PCR). ELISA assay was used for determining the protein contents of BDNF of supernatant from three groups NSCs for six days continually after seeded in 24-well plates in the same cell density. Results NSCs were purified successfully by limiting dilution assay.The original copy numbers of exogenous BDNF gene templates from pLXSN-BDNF viral infection group by FQ-PCR were (19.57±0.65) × 10~3 copies/μl, higher than those of another two groups(P < 0.05). The protein contents of BDNF of supernatant from NSCs of pLXSN-BDNF viral infection group was highest among three groups and compared with another two groups had statistical significance (P <0.05) . Conclusion The purified NSCs can be transduced exogenous BDNF successfully with supematant of recombinant retrovir-us pLXSN-BDNF which provide experimental evidences and laying foundations for further research of retinal transplantation and quantization investigation of gene therapy for optic nerve injury.

AIM　To study the roles of non-genomi c mechanism of glucocorticoid in the integration of sympathetic nervous system. METHODS　The spontaneous discharge of the identified cardiovascula r neurons in the rostral ventrolateral medulla (RVLM) were extracellularly recor ded in urethane-anaesthetized rats. The effects of microiontophoresis of cortic ostersone sulfate (CORT) on the discharge of the cardiovascular neurons in the RVLM were observed. The responses of RU 486 (a blocker for cytosolic glucocortic oids) to the effects of CORT on the cardiovascular neurons were investigated. RESULTS　Totally 33 cardiovascular neurons in the RVLM were recorded , the firing rate of 25 (76%) cardiovascular neurons increased by microiontophor esis of CORT. The effects of CORT were also positively correlated with the curre nt. In 8 (24%) cardiovascular neurons, microiontophoresis of CORT had no effect on their spontaneous discharge. In 12 of 33 cardiovascular neurons, which discha rge increased by CORT, microiontophoresis of RU 486 had no responses to the base line discharge of these cardiovascular neurons (P>0.05), but completely (3 neurons) or partially (9 neurons) blocked the excitatory effect induced by CORT. CONCLUSION　CORT had rapid excitatory effects on the cardiovascul ar neurons in the RVLM. RU 486 had no responses to the baseline activity of the cardiovascular neurons, and but completely or partially blocked the effect of CO RT on the cardiovascular neurons.

Objective To investigate the clinical effect of hyaluric acid sodium injection and functional exercises on patients with comminuted fracture of tibia plateau after reposition. Methods 134 patients with comminuted fracture of tibia plateau after reposition were randomized into the observation group and the control group with 67 cases in each group. The observation group received 2ml of hyaluric acidsodium injection into the knee joint cavity with 1％ lidocaine once a week and 3 times totally. At the same time active and passive functional exercises were applied. The control group was only given routine nursing. The knee function was evaluated by Lysholm Scale 4 months after operation and the results were compared. Results The score of the observation group was higher than that of the control group(P＜0.01).Conclusion The hyaluric acid sodium injection and functional exercises could improve the healing of joint cartilage and contribute to the rehabilitation of joint function in patients with comminuted fracture of tibia plateau after reposition.

Objective To observe the effectiveness and economic evaluation of appropriate technique for hypertension in community.Methods Systematic management,behavioral intervention and drug intervention were promoted for a period of 2 years in the community and the related index changes were observed after 2 years.Results After promoting appropriate technique,the hypertension knowledge,skill level in medical staff were improved (P ＜ 0.01).The treatment rate,control rate of hypertension were higher than 2 years ago (P ＜ 0.01).The average monthly cost of hypertensive patients was reduced(P ＜ 0.05).Conclusion It is effective to promote appropriate technique of hypertension in community.

Objective To investigate the effect of ANX A1 on the biological characteristics of papillary thyroid carcinom cells by interfering with the expression of Annexina A1 (ANX A1) in papillary thyroid carcinoma cells through small interfering RNAs (siRNA).Methods The designed highly efficient siRNA was used to conduct the specific interfence on ANXA1 expression in the papillary thyroid carcinoma TPC-1 cells.The effect of ANXA1 on TPC-1 apoptosis in PTC was observed by flow cytometry.Results The designed siRAN could efficiently inhibit the expression of ANXA1 mRNA in PTC,enhanced the cell apoptosis in TPC-1 cells in vitro.Conclusion siRNA can interfere with the expression of ANXA1 and promote the apoptosis of papillary thyroid carcinoma which suggesting that ANXA1 may be an important biological target for the treatment of papillary thyroid carcinoma.

Objective To explore the clinical efficacy,adverse effect and prognosis of infliximab in treatment of the patients with juvenile idiopathic arthritis (JIA).Methods Thirty-two cases of infliximab-treated JIA patients and 30 cases of JIA control patients were investigated in this prospective study,and their tender joint count (TJC),swollen joint count (SJC),erythrocyte sedimentation rate (ESR),C-reactive protein (CRP),visual analog scale for general health (GH),disease activity score (DAS) 28,as well as adverse reactions of treatment and follow-up outcomes were analyzed.The infliximab-treated patients were intravenously infused with infliximab at the low dose of ＜ 5 mg/(kg · time) or the high dose of ≥ 5 mg/(kg · time) in 0,2nd,6th,14th,22nd,30th week.The JIA control patients were treated with conventional therapy.Results The treatment of infliximab ameliorated the TJC,SJC,ESR,CH,CRP and DAS28 of JIA patients.In the dynamical analysis of these clinical indexes of the infliximab-treated JIA patients,the index of SJC was found to fall firstly in the 2nd week,the indexes of TJC,ESR,CH and DAS28 were found to decline secondly at 6th week,the indexes of TJC,SJC,ESR,CRP and DAS28 continued dropping till 22nd week,and only the index of GH progressively declined to 30th week.The high-dose infliximab-treated group had lower levels of ESR,GH and CRP than the low-dose infliximab-treated group (t =2.14,3.04,2.33,P =0.04,0.01,0.04).But there were no statistical difference in TJC,SJC,DAS28 and the incidence of recent adverse reactions between the high and low infliximab dose groups.In the infliximab treated group,2 cases of patients (6.25％) failed in the therapy of infliximab;9 cases of patients (28.13％) continued therapy with infliximab to 46th-62nd week; 7 cases of patients (21.88％) stopped therapy with infliximab in the 30th week had good improvement of joint symptoms and inflammatory indexes; 14 cases of patients (43.75％) relapsed and retreated by infliximab after cease the first course of treatment; 1 case of patient died of severe chickenpox infection after therapy with infliximab was ceased.Conclusions Infliximab can alleviate the joint symptoms,inflammatory indexes and DAS28 of JIA patients,and is an effective and safe therapy for JIA patients in the short-term study.

Objective To investigate the effects of inhaling high concentration of hydrogen gas on the expressions of endoplasmic reticulum stress(ERS) related protein glucose regulated protein 78 (GRP78),Caspase-12 and the neural cell apoptosis and related proteins Bcl-2 and Bax in the rats with focal cerebral ischemia reperfusion(I/R) injury.Methods Seventy-two healthy SPF male Sprague-Dawley rats were selected and then randomly divided into the control group(Ⅰ:without any treatment),sham operation group (Ⅱ),cerebral IRI group (Ⅲ) and hydrogen gas treatment group (Ⅳ),18 cases in each group.Focal cerebral ischemia reperfusion injury (IRI) model was induced by using the suture-occluded method.The neurological deficits score (NDS) was assessed at 24 h after cerebral reperfusion in four groups.The cerebral infarction severity and size were detected by TTC staining and neuronal apoptosis of brain cortex were tested by TUNEL technique.The apoptosis index (AI) was calculated.Then the expressions of GRP78,Caspase-12,Bcl-2 and Bax were assessed by Western blot and immunohistochemistry.Results As compared with the group Ⅰ and Ⅱ,NDS score,cerebral infarction size,AI and the expressions of GRP78,Caspase-12 and Bax in cerebral cortex in the group Ⅲl and Ⅳ were significantly increased,while the expression of Bcl-2 in cerebral cortex was markedly decreased(P＜0.05);compared with the group Ⅲ,NDS score,brain infarction size,AI and the expression of Caspase-12 and Bax in cerebral cortex in the group Ⅳ were markedly decreased,while the expressions of GRP78 and Bcl-2 were dramatically increased (P＜0.05).Conclusion Inhaling high concentration of hydrogen gas has a certain protective effect on cerebral IRI in rats through increasing endoplasmic reticulum GRP78 protein expression after IRI and inhibiting Caspase-12 activation,thus inhibiting ERS and promoting the repair function of endoplasmic reticulum.

Objective To investigate the current treatment of childhood bronchiolitis and wheezy bronchitis in the outpatient clinic.Methods The medication treatments of the children under 2 years old with bronchiolitis were retrospectively analyzed in the outpatient department of the Children's Hospital Affiliated to the Capital Institute of Pediatrics,during the 2 periods from November to December 2010 and July to August 2011.These children were divided into 3 groups according to age,1-6 months old group,＞ 6 months to 1 year old group and ＞ 1-2 year old group.The medications prescribed,including antibiotics,steroid,β2 agonists and anticholinergic drugs were analyzed.Results Altogether 6 198 patient visits were included.Among them,4 764 (76.86％) visits received antibiotics,4 078 (65.80％) visits received intravenous antibiotics,3 018 (48.69％) visits received systemic glucocorticoids,2 980 (48.08％) visits received intravenous steroid,3 400 (54.86％) visits received nebulization treatment,3 381 (54.55％) visits received nebulized steroid,3 417 (55.13％) visits received inhaled bronchodilators,among them,3 384 (99.03％) visits received combined nebulization of β2 agonists and anticholinergic drugs;and 826 (13.33％)visits received oral bronchodilators.In the 3 age groups,the older the age group the higher the oral bronchodilators prescription rate (6.77％,11.50％ and 18.77％,respectively).While the prescription rate of intravenous steroid,inhaled steroid and inhaled bronchodilators were lowest in the oldest(＞ 1-2 year old) group (43.65％,49.64％ and 50.00％,respectively).The average cost was 166.08 Yuan per visit,and 69.06％ was spend on drug cost.Conclusions There is a wide spread use of antibiotics,glucosteroids and bronchodilators in the treatment of bronchiolitis and wheezy bronchitis.There is a need for national guideline of bronchiolitis to standardize the management of childhood bronchiolitis in outpatient clinic.

The prescription of antibiotics for children with upper respiratory infections (URIs) in outpatient department of our hospital from November to December 2010 and from July to August 2011 were retrospectively analyzed.In 37 211 patient visits (prescriptions) with suppurative tonsillitis,laryngitis and other URIs,the antibiotic prescription rates were 90.45％ (3 626/4 009),78.77％ (2 642/3 354)and 52.25％ (15 596/29 848),respectively;the intravenous antibiotics rates were 78.22％ (3 136/4 009),60.58％ (2 032/3 354) and 16.47％ (4 915/29 848),respectively for above three conditions.For suppurative tonsillitis,the 3rd generation cephalosporins were the most commonly prescribed antibiotics (orally:51.07％,715/1 400) and(intravenously:54.88％,1 721/3 136),followed by the 2nd and first generation cephalosporins and macrolides.For laryngitis and other URIs,the 2nd generation cephalosporins were most frequently prescribed(orally:48.78％,538/1 103 and 39.16％,4 433/11 320,respectively) and (intravenously:54.38％,1 105/2 032 and 42.75％,2 101/4 915,respectively),followed by macrolides,3rd generation cephalosporins and first generation cephalosporins.No intravenous penicillin were prescribed.Oral penicillin were prescribed for 0-0.22％ of these children.The results indicate that antibiotics prescription rates are high for children with upper respiratory infections,particularly the prescription of broad spectrum antibiotics and intravenous antibiotics,while penicillin is seldom prescribed.