0.05).Conclusion Early pre-interventional tirofiban therapy for patients with acute STEMI who undergo primary PCI improves patency of infarct-related artery and tissue reperfusion,but its effects on short-term clinical outcomes are similar to routine tirofiban administration in catheter laboratory.

Background Several cytokines,especially interleukin-1β (IL-β) involve in the breakdown of blood-retina barrier,and the signal of cytokine is transduced through protein tyrosine kinase (PTK) pathway.Objective This study was to investigate the effects of PTK inhibitor,Genistein,on IL-1β-induced blood-retinal barrier breakdown and possible mechanism.Methods The animal models of blood-retinal barrier breakdown were induced through intravitreal injection of IL-1β(10ng) in 24 clean healthy SD rats and assigned to IL-1β group and Genistein group.5μl IL-1β+1μl Genistein with 0.2,1,5μg were intravitreally injected in 12 model rats and 5μl IL-1β (2mg/L)+1μl DMSO was used at the same way in other 12 models.Evans Blue was injected in rats via jugular vein in 1 hour before sacrifice of animals and the arterial blood was collected for the detect of serum Evans Blue.The retinas of the rats were obtained in 4 and 48 hours after injection of vitreous cavity to assay the content of Evans Blue in retina.The changes of vessels and infiltration of inflammatory cells were observed with hematoxylin-eosin stain.RT-PCR was employed to determine the expression of IL-8 and MCP-1mRNA in neuroretina after intravitreal injection.Expression of MCP-1 protein was localized by immunohistochemistry.Results The ratio of retinal Evans Blue and plasma Evans Blue was significantly decreased after intravitreal injection of different doses of Genistein among Genistein groups and IL-8 group with a statistical difference (4 hours:F=7.510,P=0.010;48 hours:F=5.960,P=0.019).With the increase of time after injection of Evans Blue,the ratio of retinal Evans Blue and plasma Evans Blue was gradually reduced in comparison to IL-1β group (P＜0.05).After injection of IL-1β,the dilation of retinal vessel and adhesion of leukocyte to vessel wall were seen under the light microscope,but infiltration of less inflammatory cells was found in Genistein group.The expressions of IL-8 and MCP-1mRNA were obviously declined in retina of rats in Genistein groups compared with IL-8 group (P＜0.05).Immunochemistry indicated that the expression of MCP-1 protein in neuroretina tissue was weaker in Genistein group compared with IL-8 group.Conclusion PTK inhibitor,Genistein,can decrease IL-1β-induced permeability of vessel and maintain the integrity of blood-retinal barrier by downregulating the expression of chemokines and infiltration of leukostasis in retinal vessels.This study imply that PTK pathway plays an important role in IL-1β-induced blood-retinal barrier breakdown.

Central Nervous System Diseases ; complications ; virology ; Child ; China ; epidemiology ; Enterovirus ; Enterovirus A, Human ; Female ; Hand, Foot and Mouth Disease ; complications ; epidemiology ; Humans

Objective To analyze the clinical characteristics of intestinal infection caused by Aeromonas and their drug suscepti-bility .Methods The data of 52 patients infected with Aeromonas were analyzed retrospectively .Aeromonas strains were identified with Vitek Ⅱ Compact .Drug susceptibility was determined by disk diffusion methods .Cefoxitin combined with ceftazidime ,aztreo-nam ,cefotaxime and ceftriaxone were used to detect inducible expression of AmpC β-lactamase .Results Abdominal pain ,watery di-arrhea ,tenesmus occurred in 75 .0% ,48 .1% ,and 38 .0% of the patients ,respectively .White blood cell tests were positive in 50 .0%patients′stools .52 strains of Aeromonas were isolated ,including 38 strains of Aeromonas hydrophila ,13 strains of Aeromonas so-bria ,and 1 strain of Aeromonas veronii .All strains were sensitive to carbapenems ,the second ,third generation of cephalosporins , monobactam ,fluoroquinolone ,aminoglycosides .The susceptibility rates to chloramphenicol ,trimethoprim-sulfamethoxazole ,cefox-itin ,cefazolin ,and amoxicillin/clavulanic acid were 94 .2% ,92 .3% ,76 .9% ,51 .9% and 23 .1% ,respectively .75 .0% isolates exhibi-ted inducible expression of AmpC β-lactamas .Conclusion Diarrhea caused by A eromonas has different clinical manifestations .Ceph-alosporins ,monobactam ,fluoroquinolone ,aminoglycosides are available for empirical therapy of diarrhea caused by A eromonas .But the third generation of cephalosporins should be cautiously used because of high prevalence of inducible AmpC β-lactamase in A ero-monas .

BACKGROUND:Proto-oncogene c-Src plays an important role in regulating cardiovascular diseases such as hypertension. At present, there were no studies concerning exercise intervention effects on c-Src expression in aortic endothelial cels so as to regulate hypertension. OBJECTIVE: To observe the effects of aerobic exercise on c-Src mRNA expression and c-Src activity in the aorta blood vessel endothelial cels of spontaneous hypertensive rats. METHODS: A total of 8 male Wistar rats were considered as normal control group. Sixteen spontaneous hypertensive rats were randomly assigned to 8 rats as spontaneous hypertension group and 8 rats as spontaneous hypertension exercise group. Rats in the spontaneous hypertension exercise group carried on 90 minutes unloaded aerobic swimming every day, 6 days a week, for 8 weeks. The rats in the normal control group and spontaneous hypertension group did not swim. Blood pressure of rats was measured once a week. 8 weeks later, the c-Src mRNA expression and c-Src activity were determined in aortic vascular endothelial cels of rats in each group. RESULTS AND CONCLUSION: Compared with spontaneous hypertension group, blood pressure was lower, but c-Src mRNA expression and c-Src activity were significantly higher in the spontaneous hypertension exercise group. The c-Src activity and c-Src mRNA expression were higher in the spontaneous hypertension exercise group than normal control group and spontaneous hypertension group (P < 0.01). Results indicated that aerobic exercise can promote the increase in c-Src activity and c-Src mRNA expression in aortic endothelial cels of spontaneous hypertensive rats.

Objective To explore the significance of serum cytokine interferon-gamma (IFN-γ) ,interleukin-4(IL ) ,transforming growth factor-beta 1 (TGF-β1) ,interleukin-9 (IL-9) ,interleukin-17 (IL-17) in detection of youth first-episode depression .Methods Ninety cases of youth first-episode depression as the experimental group were equally divided into 3 groups according to different disease courses(<6 months ,6 months to 2 years ,>2 years)and other 30 normal persons served as the control group .The levels of serum cytokines were measured by ELISA .The level of each cytokine and Hamilton Depression Scale (HAMD) score were per-formed the Spearman correlation analysis .Results The IL-9 level in the 6 months to 2 years group and > 2 years group was high-er than that in the control group (P< 0 .05);the IFN-γlevel was negatively correlated with psychic anxiety (P<0 .05);the IL-9 level was positively correlated with the somatic anxiety and systemic symptoms (P<0 .05);the IL-17 level was positively correla-ted with the depressive mood and suicide (P<0 .05);the IFN-γlevel was positively correlated with difficulty falling asleep ,early a-wakening ,work and interest in the 6 months to 2 years group ,while positively correlated with somatic anxiety (P<0 .05);the IFN-γ level was positively correlated with depressive mood and block in the >2 years group(P<0 .05);the IL-4 level was positively correlated with the depressive mood (P<0 .05) .Conclusion Different cytokines play different roles in youth first-episode depres-sion ,cytokines may involve in the occurrence and development of depression .

Objective To verify the safety of non-thoracoscopic Nuss procedure,and review our experience in correction of pectus excavatum by Nuss procedure with post-implantation thoracoscopic assistance.Methods 191 patients with pectus excavatum were surgically corrected by Nuss procedure with post-implantation thoracoscopic assistance.There were 146 boys and 45 girls,The age ranged from 2.8 to 20 years with mean age was ( 6.46 ± 3.36) years.Hailer' s index was 4.68 ± 1.84.The operation was performed under Non-thoracoscopic assistance first and then with thoracoscopic observation.Results The operation in all patients had been performed successfully.The time of the operation ranged from 27 to 50 minutes with mean time was ( 32.49 ± 2.79) minutes.The average bleeding volume during procedure was ( 2.19 ± 0.87 ) ml.The durstion of follow-up was 10 to 23 months.All patients have been satisfied with their surgical correction.The postoperative complication was 13 cases( 6.81％ ).The bar outsides the pleura in both sides was 18 cases( 9.42％ ).The bar outsides the right pleura was 23cases( 12.0％ ).The bar outsides the left pleura was 17 cases( 8.90％ ).Conclusion Nuss procedure with non-thoracoscopic assistance for correction of poctus excavatum is safety if the surgeon experienced and have certain methods.Post-implantation thoracoscopic Nuss procedure is safer,and can deal with the damage caused by non-thoracoscopic assistance.

Objective To summarize the experience of diagnosis and treatment of pectus excavatum associated with congenital pulmonary disease in children.Methods The data of 91 patients with pectus excavatum associated with congenital pulmonary disease was collected from July 2002 to August 2010 in Beijing Children's Hospital.There were 64 males and 27 females.30 patients with pectus excavatum associated with congenital pulmonary cyst,congenital cystic adenomatoid malformation,pulmonary sequestration,and some severe cases of congenital lobar emphysema received the Nuss surgery and lobectomy simultaneously.Results 30 cases with pectus excavatum asseeiated with congenital pulmonary disease received simultaneous Nuss procedure and lobectomy.All cases were confirmed by pathology and recovered uneventfully.Conclusion Chest CT scan is an effective way to evaluate pectus excavatum associated with pulmonary diseases.Whether surgery is needed for the pulmonary disease depend on the specific types of disease,age and other various factors.Simultaneous surgery for pectus excavatum and pulmonary disease can lower the risk of the multiple operations,and reduce the financial burden of famihes.

With the increase of the incidence and the refinement of clinical treatment,the clear preoperative staging and the assessment of tumor recurrence and metastasis of cervical cancer is particular important.Different results may be explained in the same tumor applied different methods of imaging examination,which influences the clinical diagnosis and treatment.So imaging examination plays a more and more important role in the assessment of preoperative staging and tumor recurrence.

AIM:To establish HPLC method for the determination of amodiaquine in human plasma.METHODS: Amodiaquine and internal standard(hydroxychloroquine) were analyzed on C18 column(150 mm ×4.6 mm, 5 μm) with methanol: water:triethylamine: orthophosphoric acid (21:77.5:1:0.5 )as mobile phase at the flow rate of 1.0 mL · min-1The UV detector was set at 294 nm. RESULTS: The retention times of amodiaquine and internal standard were 5.82, 8.56 min, respectively. The calibration curve was linear in the range from 10 to 1 000 μg ·L- 1 ( r = 0.999 8, n = 9 ). The limit of quantitation was5 μg· L-1. The extraction recovery was between 75.5 % and 82.7 %, and the methodological recovery was between 97.0 % and 104.8 %. The intra-day and inter-day RSD were less than 6.0 % and 7.5 %, respectively. CONCLUSION: This HPLC method is simple, sensitive and suitable for pharmacokinetic study of amodiaquine.