The increase of blood-brain barrier (BBB) permeability is a key link in causing the pathological changes in vasogenic brain edema and inflammatory reaction. In recent years, a number of studies have indicaded that a lot of mediators participated in the structural and functional changes and damage of BBB during the process of cerebral ischemia-reperfusion.

Objective To explore the status of infections of soil-transmitted nematodes of residents in Shuyang County,Jiang-su Province from 2011 to 2012. Methods Totally 2 140 residents of Machang Town and Longji Town in Shuyang County,Jiangsu Province were investigated,and their stool samples were collected and detected by Kato-Katz technique,and in addition,the chil-dren aged 3-12 years were examined by the cellophane anal swab method,in 2011 and 2012. Results In 2011,the total infec-tion rate of soil-transmitted nematodes was 1.06%(11/1 034),the infection rate of hookworm was 1.06%(11/1 034),the infec-tion rate of Ascaris lumbricoides was 0,the infection rate of Trichuris trichiura was 0,and the infection rate of Enterobius vermicu-laris was 0;In 2012,the total infection rate of soil-transmitted nematodes was 0.99%(11/1 106),the infection rate of hookworm was 0.27%(3/1 106),the infection rate of A. lumbricoides was 0.09(1/1 106),the infection rate of T. trichiura was 0,and the in-fection rate of E. vermicularis was 2.69%(7/223). Conclusion The infection rate of soil-transmitted nematodes of residents in Shuyang County is low,but the surveillance is still necessary.

Objective To sum m arize the key points, difficulties and relevant practical experiences for ana-lyzing the scene of solved intentional hom icide cases. Methods The data of 88 solved intentional hom i-cide cases in a county from 2004 to 2013 w ere collected and the retrospective analysis w as perform ed. Results The num ber of local fem ale victim s obviously higher than non-local fem ale victim s and the num ber of non-local suspects is obviously higher than local suspects. The num ber of M ale suspects show ed higher com pared w ith the fem ale. M ost of them w ere tem porary w orkers, unem ploym ent or farm ers w ith less education backgrounds. The m ain causes of victim s’ death w ere m echanical injury or asphyxia. The m urders w ere acquaintances in m ost intentional hom icide cases. The m otive of the stranger m urders w as com m only m oney. The m urder behavior types of hom icide cases w ere related w ith people, m oney and sexual assault. C am ouflage and guilty behavior show ed the m ost significance. Conclusion The accurate identification of suspects is one of the m ost im portant task in forensic investigation and re-flects the im portance of the crim inal scene analysis for intentional hom icide cases. It also provides the direction of future research.

Drug addiction is a chronic,relapsing brain disorder,which develops,in part,because of aberrant learning and memory. Accumulative studies during recent decades demonstrated that addictive drug hijacks the normal memory circuit in the brain to form a long-lasting drug reward memory,which determines relapse to addictive drug. In this review,we will describe what has been learned about drug reward memory,especially focused on one of the associative drug reward memory models,drug-induced conditioned place preference. Drug reward memory is a dynamic process,which consists of several stages,including acquisition,consolidation,maintenance,retrieval,reconsolidation and extinction. Interventions with pharmacological in these memory processes will differentially regulate drug reward memory. Furthermore , the recently developed novel pure behavioral procedure according to the hypothesis of memory processes,e.g. post-retrieval extinction,could erase drug reward memory,which shows more advantages than the pharmacological medications that used in memory studies. Finally, we discussed two major methodological issues in drug reward memory,procedure and timing,which should be carefully considered when designing the related studies and interpreting the results from related studies. So far,it is not sure whether it is feasible to develop a pharmacological medication that only erases drug reward memory without impairing normal memories,we propose that inhibition of drug reward memory would be a good strategy to limit the risk of relapse to addictive drug. Although current findings on drug reward memory benefits little for treatment of drug addiction,the ongoing studies on drug reward memory will provide a promising strategy for reducing the risk of relapse to addictive drug.

Objective To analyze the epidemical distribution of intestinal nematode infections in Jiangsu Province in recent 30 years,so as to provide the evidence for improving prevention and control of intestinal nematodiasis in the future. Methods The literature related to intestinal nematode infections in Jiangsu Province from 1984 to 2012 was searched and the infection data in them were sorted and analyzed. Results A total of 26 papers were obtained. In the recent 30 years,the infection rates of Trich-uris trichiura,Ascaris lumbricoides and hookworm in Jiangsu Province decreased gradually,but the infection levels in northern Ji-angsu were higher than those in central and southern Jiangsu. In northern and central of Jiangsu Province,the descent speed of the intestinal nematode infection levels was faster before 2000,and then it slowed down after 2000. In southern Jiangsu,the descent speed of the infection level of A. lumbricoides was the fastest,but the infection level of T. trichiura with slight fluctuation kept rela-tively steady. From 1984 to 1989,the infection rates of the 3 intestinal nematodes above-mentioned in all age groups were high, and those of T. trichiura and A. lumbricoides were above 20%and 30%,respectively,and the infection rates of hookworm in mid-dle aged and elderly populations were relatively high. From 1990 to 2000,the infection rates of A. lumbricoides in children and teenager as well as that of hookworm in the people aged from 40 to 70 years were high,but those of T. trichiura and A. lumbricoides in the people above 70 years old were low. During the period of 2001 to 2012,the middle aged and elderly population and children were still the high-risk groups of hookworm and A. lumbricoides infections,respectively. Conclusions In the recent 30 years,the infection rates of intestinal nematodes in Jiangsu Province have decreased year by year,but the infection levels in northern Jiangsu are still higher than those in central and southern Jiangsu,which means that the northern Jiangsu is the key area of intestinal nema-todiasis control. Meanwhile,the A. lumbricoides infection rate of children and T. trichiura infection rate of the middle aged and el-derly population are high,which suggests that the control should put emphasis on the key population.

Objective:To study the protective effect of electro-acupuncture on glutamate(GLU),glycine(GLY),aspartate(ASP)and NF-?B expression in rat with cerebral ischemia reperfusion.Methods:The middle artery occlusion(MCAO)model was established and high pressure liquid chromatography(HPLC)fluorescence assay was used to detect contents of glutamate(GLU),glycine(GLY)and aspartate(ASP)in rat brain.The effect of electro-acupuncture on the nervous dysfunction score,the water content of cerebral constitution and the expression of NF-?B were observed.The group with non-acupoint group was as control.Results:The nervous dysfunction score,the water content of cerebral constitution,NF-?B,GLUand ASP in model group were higher than those of the sham-operated group.GLY levels had no obvious changes,there was no significant diference between the model group and the non-acupoint group.The nervous dysfunction score,the water content of cerebral constitution,the expression of NF-?B,GLU and ASP in electro-acupuncture group were lighter than that of the model group,GLY levels had no obvious changes.Conclusion:Electro-acupuncture could protect brain cell from damage after focal cerebral ischemia reperfusion injury by inhibiting the cerebral expression of NF-?B and excitatory amino acid.

Objective: To investigate the clinical effect of Huangqishengmai Oral Solution for Viral myocarditis. Methods: 128 patients in the therapeutic group were treated with Huangqishengmai Oral Solution. 72 patients in the control group were treated with routine treatment. The changes of heart rate, heart function, electrocar-diogram ST-T, arrhythmia, SOD and MDA before and after treatment were observed. Results: (a) The heart rates of both groups slowed down after treatment, and there were obvious differences in various markers of heart function between before and after treatment. (b) ST-T change of patients in the therapeutic group was obvious. The effective rate of the therapeutic group was higher than that of the control group. (c) SOD level of patients in the therapeutical group rised. MDA level decreased. (d) No obvious difference in treating arrhythmia was observed between two groups. Conclusion: Huangqishengmai Oral Solution is effective for viral myocarditis and should be widely applied in clinic.

Objective To isolate protoplasts from tube plant leaves of Rhodiola sachalinensis and regenerate plantlets after protoplast culture.Methods Preculture treatment and size of explants,enzyme concentration,mannitol concentration in enzyme mixture related with protoplasts isolation were studied to determine the superior optimized conditions.Results Explants could be used to isolate protoplast without dark preculture,and leaf length should be longer than 1.5 cm.The best incubating enzyme solution contains 1.0% cellulase Onzuka R-10,0.5% Macerozyme R-10,10 mmol/L CaCl2?2H2O,0.1% MES,0.7 mmol/L KH2PO4,and 0.5 mol/L mannitol.The enzyme and explants mixture were shaken for 4 h at 25 ℃.The protoplasts yield and viability were 39.43?106/g fresh weight and 78.6%,respectively.Purified protoplasts were cultured in medium 1/2 MS+1 mg/L 2,4-D+0.5 mg/L ZT+0.5 mol/L mannitol +500 mg/L hydrolysis of casein initially with shallow liquid layers,and calli formed within 40 d.After calli were transfered to MS+1 mg/L 6-BA+0.1 mg/L NAA,adventitious buds were induced from calli.Shoots longer than 2 cm rooted within 30 d when they were transfered to 1/2 MS medium.Conclusion The study provides the scientific base for protoplast fusion in polyploidy breeding of R.sachalinensis.

Objective To study the clinical value of plasma BNP level in evaluation cardiac function of children with left-to-right shunt congenital heart disease.Methods 32 children with left-to-right shunt congenital heart disease were selected as the observation group.Then according to the heart load capacity,the observation group children were further divided into right ventricular group(14 cases) and left ventricular group(18 cases).20 cases of normal children were selected as the control group.Then plasma BNP level was determined by ELISA and the left ventricular ejection fraction (LVEF),left ventricular end diastolic diameter(LVEDD),right ventricular end diastolic diameter(RVEDD),pulmonary blood flow/systemic blood flow ratio (Qp/Qs) and left heart Tei indices were determined by echocardiography.Results In the right ventricular group,the BNP level was (360.21 ± 56.78) ng/L,LVEDD was (35.71 ± 6.98) mm,RVEDD was (25.04 ± 5.52) mm,Qp/Qs was (1.74 ± 0.24) and left heart Tei index was (0.34 ±0.12).And in the left ventricular group,the BNP level was (384.57 ±55.18) ng/L,LVEDD was (45.27 ±7.26)mm,RVEDD was (12.34 ±2.18)mm,Qp/Qs was (1.78 ±0.19) and left heart Tei index was (0.36 ±0.11),which were significantly higher than those in the control group (F =307.00,18.92,84.24,91.47,3.44,all P ＜ 0.05).LVEF of the observation group had no obvious difference compared with the control group (F =1.51,P ＞0.05).The plasma BNP level of the right ventricular group was positively correlated with RVEDD,Qp/Qs and left heart Tei index (r =0.634,0.721,0.647,all P ＜ 0.05).The plasma BNP level of the left ventricular group was positively correlated with LVEDD,Qp/Qs and left heart Tei index(r =0.547,0.794,0.745,all P ＜ 0.05).There was no correlation between the plasma BNP level and LVEF of the observation group.Conclusion The plasma BNP level can help evaluation the early cardiac function of children with left-to-right shunt congenital heart disease,and combined with echocardiography can accurately reflect the early cardiac function of the left-to-right shunt congenital heart disease,which can provide basis for the clinical diagnosis and treatment.

Objective To evaluate the feasibility and safety of video-assisted rigid bronchoscopy in the treatment of benign tumors of tracheobronchus.Methods Seven patients with benign tumors of tracheobronchus were managed with video-assisted rigid bronchoscopic surgery in this hospital from September 2002 to April 2005.The endoscopic procedure was performed under general transvenous anesthesia and jet ventilation.The tumor was firstly frozen or electocoagulated for better bleeding control,and then was removed with a biopsy clamp by parts,with the pedicle treated with freezing,coagulation or argon plasma coagulation(APC).For tumors with a broad pedicle,after the bulk of tumor was ablated under bronchoscope,a conversion to open local resection was carried out.Results All the 7 operations was accomplished smoothly without mortality or severe morbidity.Except one patient with broad pedicle leiomyoma which was resected through thoracotomy after airway clean-up and intubation,all 6 patients with narrow pedicle tumors underwent a complete tumor removal endoscopically.Postoperative pathological reports confirmed the benign diagnosis as 2 cases of hamartoma,3 cases of leiomyoma,1 case of acidophilus granuloma,and 1 case of inflammation.Follow-up observations in the 7 patients for 3~36 months(mean,17.3 months) showed no recurrence.Conclusions Video-assisted rigid bronchoscopy in the treatment of benign tumors of tracheobronchus is safe and reliable.