Tobacco smoking is a global healthcare problem that poses a substantial and costly health burden. Nicotine is the major constituent responsible for the addiction to tobacco. Current strategies helping tobacco smokers have limited utility in increasing rates of smoking cessation, consequently indicating the need for alternative therapies. A novel therapeutic method is vaccination against nicotine. Nicotine vaccine can generate specific antibodies that can sequester nicotine from cigarette smoke in the blood, and prevent its access to the brain and minimize positive reinforcing effects, which may help smokers to stop smoking. The vaccine will have great potential for the treatment of nicotine addiction and for relapse prevention. Here we will review the current status of vaccines against nicotine addiction and discuss the problems associated with the development of nicotine vaccines.

Objective To know the current status of the benzene series pollution in the indoor air in newly decorated houses in Beijing and analyze its dynamic changes in order to find the changes rule of benzene series level. Methods 54 houses were randomly chosen in Beijing to monitor their benzene series levels during Apr.-Oct.,2005. Results The monthly average concentrations of benzene series in six months after decoration changed obviously while the temperature and time changed. Conclusion The benzene series level in the indoor air after decoration is affected by temperature mainly. Residents should open the windows for 3 months at least in order to avoid benzene series pollution.

Objective To summarize our experience on laparoscopic appendectomy combined with high ligation of the vaginal process in children.Methods From January 2004 to May 2007,totally 326 patients with appendicitis underwent laparoscopic appendectomy in our hospital.During the operation,by inguinal exploration,83 cases of vaginal process deformity (17 bilateral and 69 unilateral lesions) were confirmed.High ligation of the vaginal process was performed on these patients.Results The operation was successfully done in all of the 83 cases,none of them showed postoperative complications.The cases were followed up for 6 to 12 months,during which only one patient had recurrent inguinal hernia.Three patients developed latent hernia but receined no treatment. Conclusions Laparoscopic appendectomy combined with high ligation of the vaginal process is an safe,effective,and low-cost procedure,leading to quick recovery and less pain for children with appendicitis complicated with vaginal process deformity.

Objective To observe the effect of monosialoteterahexosyl ganglioside (GM1) combined with Shuxuening injection on nerve function in patients with acute cerebral infarction (ACI) and its mechanism.Methods A total of 94 patients with ACI admitted to the Department of Neurology in Xiangyang First Peoples' Hospital Affiliated to Hubei Medical College from January 2013 to June 2016 were enrolled,and they were divided into two groups by random number table,each group 47 cases.The patients in two groups were all given conventional western medicine treatment;The patients in one group (single group) were treated by intravenous (Ⅳ) drip of GM1,100 mg once a day;and the patients in another group (combined group),by above GM1 Ⅳ drip combined with Shuxuening intramuscular injection,once 2 mL,twice a day;the therapeutic course in two groups was 14 days.Before and after treatment,the changes of China stroke clinical neurological impairment score (CSS score),glasgow coma score (GCS),nerve factor,oxidative stress index and hemodynamics index of two groups were observed.Results Compared with those before treatment,after treatment the CSS score,the levels of neuron specific enolase (NSE),and malondialdehyde (MDA) were significantly lower,while the GCS score,the levels of nerve growth factor (NGF),neurotrophic factor (NTF),maximum blood flow velocity (Vmax),minimum blood flow velocity (Vmin),mean blood flow velocity (Vmean),mean blood flow quantity (Qmean),glutathione peroxidase (GSH-Px),catalase (CAT) and superoxide dismutase (SOD) were all significantly higher in the combined group (all P ＜ 0.05).After treatment,the CSS score,levels of NSE and MDA in the combined group were significantly lower than those of the single group [CSS:11.20 ± 1.78 vs.16.24 ± 1.95,NSE (μg/L):13.17± 1.00 vs.17.68 ± 1.84,MDA (μmol/L):4.14±0.49 vs.5.61 ±0.50,all P ＜ 0.05],GCS score,NGF,NTF,GSH-Px,CAT,SOD,Vmax,Vmin,Vmean and Qmean of the combined group were all significantly higher than those of the single group [GCS:13.68± 1.85 vs.12.01±1.76,NGF (ng/L):88.10±8.83 vs.68.13±7.16,NTF (pg/L):5.13±0.38 vs.3.71±0.30,GSH-Px (U/L):128.13±8.07 vs.103.90±6.58,CAT (U/L):25.74±2.15 vs.19.43± 1.84,SOD (μU/L):94.36±8.00 vs.77.29±7.34,Vmax (cm/min):48.23±3.36 vs.43.17±2.88,Vmin (cm/'min):8.11±0.76 vs.6.85 ± 0.64,Vmean (cm/min):18.69 ± 1.37 vs.15.60 ± 1.24,Qmean (mL/min):9.10 ± 0.74 vs.7.79 ± 0.66,all P ＜ 0.05].Conclusions GM1 combined with Shuxuening injection can improve nerve function in patients with ACI by improving brain blood flow,secreting neurotrophic related factors and inhibiting oxidative stress reaction,thus it has important clinical significance for repairing the damaged nerve function.

Objective To evaluate the clinical effect of single-site umbilical laparoscopy in the treatment for inguinal incarcerated hernia in children. Methods Retrospective reviews were conducted for the clinical data of the 105 children with inguinal incarcerated hernia during January 2010 to August 2014. According to different surgical approaches, data were divided into single-site laparoscopic surgery group (SLS, n=56) and open surgery group (OS,n=49). The follow-up period was 6-36 months. Results Two groups of patients were successfully completed surgery. The average operative duration was significantly longer in OS group (33.73±4.41)min than that of SLS group (26.14±5.17) min (P<0.01). The average operative blood loss was (3.18 ± 2.90) mL for OS group versus (1.73 ± 0.88) mL for SLS group (P<0.01). The hospitalization duration was (4.22±1.16) d for OS group versus (3.50±0.97) d for SLS group (P<0.01). The postoperative complications were 24.5%(12/49) for OS group and 8.9%(5/56) for SLS group. There was no recurrence of hernia in two groups. Conclusion Single-site umbilical laparoscopy is safe and efficacious for treatment of inguinal incarcerated hernia in children, which offers a new choice of treatment for occult inguinal hernia.

Objective To explore the diagnostic value and clinical significance of the combined detection of antinuclear antibody (ANA) and anti-nuclear antibody spectrum (ANAs) in systemic lupus erythematosus (SLE) .Methods 110 patients with SLE ,88 patients with other autoimmune diseases (AID) and 50 individuals with healthy physical examination were selected and detected se-rum ANA by using indirect immunofluorescence (IIF);the Western blot was adopted to detect the 15 items of ANAs .Results A-mong 110 cases of SLE ,the positive rates of serum ANA ,anti-ribonucleoprotein /Smith antibody (nRNP/Sm) ,anti-Smith antibody (Sm) ,anti-Sjogren′s syndrome A antibody (SSA) ,anti-Ro-52 antibody (Ro-52) ,anti-Sjogren′s syndrome B antibody (SSB) ,anti-scleroderma 70 antibody (Scl-70) ,anti-PM-Scl antibody (PM-Scl) ,anti-cytoplasmic group acyl-tRNA antibody (J0-1) ,anti-centro-mere antibodies (CENP B) ,anti-proliferative protein antibody (PCNA ) ,anti-double stranded DNA antibody (ds-DNA ) ,anti-nu-cleosome antibody (AnuA) ,anti-histone antibody (AHA) ,anti-ribosomal P protein antibody (ARPA) and anti-mitochondrial anti-body M2 subtype (AMA M2) were 98 .2% ,59 .1 % ,39 .1 % ,71 .8 % ,68 .2 % ,21 .8 % ,2 .7 % ,3 .6 % ,0 .9% ,9 .1% ,5 .5% , 44 .5% ,38 .2 % ,27 .3 % ,38 .2% and 15 .5% respectively ,the positive rate of above 16 kinds of autoantibody in the orther AID were64.8% ,14.8% ,0% ,37.5% ,42.0% ,11.4% ,9.1% ,0% ,5.7% ,9.1% ,1.1% ,2.3% ,1.1% ,1.1% ,5.7% and2.3% respec-tively ;ANA had the highest diagnostic sensitivity (98 .2% ) and low specificity (35 .2% ) for SLE ,the antibodies with higher speci-ficity in diagnosing SLE were anti-Sm antibody (100 .0% ) ,anti-ds-DNA antibody (97 .7% ) ,anti-AnuA antibody (99 .0% ) ,anti-AHA antibody (99 .0% ) ,anti-ARPA antibody (94 .3% ) and anti-PCNA antibody (98 .9% ) and the disease control group (50 .9% ) .In detecting ANA karyotype by IIF ,the maximum was nuclear particle type (43 .5% ) and the disease control group (50 .9% ) ,no statistically significant difference was found between them (P>0 .05) ,part of the ANA-negative patients have positive ANAs .Conclusion Multiple autoantibodies can be detected in the serum of the SLE patients .The combined detection of ANA and ANAs has important clinical significance for diagnosing and differentially diagnosing SLE .

Objective To explore the effects of health belief mode (HBM)-based home visits on the blood pressure (BP) and health-related behaviors of elderly hypertensive patients.Methods One-year HBM-based home visits were paid to 114 elderly hypertensive patients over 80 years old chosen from the community.The normalization rate of blood pressure after intervention at 3,6,12 months and health-related behaviors after intervention were also compared with those of pre-intervention.Results The BP after intervention was improved significantly after intervention as compared with that of pre-intervention (P＜0.01).Health-related behaviors after intervention were significantly more than those before pre-intervention (P＜0.01).Conclusions The hypertensions are controlled effectively with the implementation of the HBM-based home visits to the elderly hypertensive patients.The development of disease in elderly hypertensive patients can be slowed down and their life quality can be improved.

Objective To explore the establishment of an new artificial bladder reflex arc for controlled micturition function in the conical spinal cord injury(SCI). Methods One conical SCI patients were included by lateral microanastomosis of the L6 ventral root to S2 ventral root. After several months of axonal regeneration, the function of bladder were examined clinically and urodynamically. Results Stimulation of the new artificial reflex are could inuduce controlled voiding, and could cause detrusor contraction when following 55 months of one patient. Conclusions Establishing of an new artificial reflex arc may effective for controlled micturition in conical SCI.

In order to obtain the serotype distribution of E.coli from duck and to screen the vaccine bacterial strains,the serotype identifications and biological characteristics of E.coli were analyzed in recent years from Shandong,Hebei and other areas of commercial duck field;selections of vaccine strains were detected by the virulence and immunogenicity.Totally 44 isolated bacterial strains of E.coli from duck were identified to a total of six serotypes:O78,O93,O76,O2,O92 and O32.The O78 serotype was the dominant serotype,accounting for 56.8％ (25/44);O93 serotype for 15.9％ (7/44) according to bacterial Oantigen typing.The strain SD (O78 serotype) was confirmed to have strong virulence and good immunogenicity.The O78,O93 and O76 are the dominant serotypes of duck E.coli in the study areas.The SD strain could be used as the candidate for the next development of inactivated vaccine.

BACKGROUND: Uncoupling of major histocompatibility complex (MHC) is the main cause for transplantation rejection, and it is the best way to prevent transplantation rejection by induce immunological tolerance of the recipient to the donor organ. Self-tolerant T cells can be obtained by negative selection in thymus, whether the intrathymic injection of allogenic antigen can get the immunological tolerance to the antigen?OBJECTIVE: To observe the effects of intrathymic injection of allogenic antigen on inducing immunological tolerance in nerve transplantation.DESIGN: A comparative observation.SETTINGS: Department of Immunology, Harbin Medical University; Department of Orthopaedics, Fourth Clinical Hospital of Harbin Medical University.MATERIALS: Thirty donor C57BL/6 mice (H-2b), male, aged from 6-8 weeks, weighing 18-22 g, were purchased from the Veterinarian Institute of Heilongjiang Province; While 60 recipient Balb/c mice (H-2b) female, aged from 6-8 weeks, weighing 18-22 g, from Beijing Experimental Animal Center. MHC (H-2b) antigen was prepared by the Department of Immunology, Harbin Medical University, and the concentration of protein was 4.4 g/L.METHODS: The experiments were carried out in the Department of Immunology, Harbin Medical University from June to November 2002. The recipient Balb/c mice were randomly divided into four groups: intrathymic injection group, syngenic transplantation group, allogenic transplantation group and immunosuppressant drug group. MHC (H-2b) antigen was extracted from splenic cells of donor C57BL/6 mice and injected intrathymically into recipient Balb/c mice (H-2d). Two weeks later, the sciatic nerve was transplanted to the recipient mice. Mixed lymphocyte reaction and delayed-type hypersensitivity (DTH) were detected at 3 weeks after transplantation.MAIN OUTCOME MEASURES:The differences of mixed lymphocyte reaction and DTH were compared among the groups.RESULTS: All the 30 donor C25BL/6 mice (H-2b) and 60 recipient Balb/c mice (H-2d) were involved in the analysis of results.①Results of mixed lymphocyte reaction: The cell proliferations in the syngenic transplantation group and intrathymic injection group were obviously lower than that in the allogenic transplantation group [(546.1±75.1), (2 668.3±533.8), (3 101.3±429.1), (4 312.3±534.1) minutes-1, P＜0.05].②Results of DTH: The thicknesses difference between two pads in the syngenic transplantation group and intrathymic injection group were obviously lower than that in the allogenic transplantation group [(41.1±3.7), (72.1±5.1), (57.6±11.3), (86.2±13.2)μm, P＜0.05].CONCLUSION:The intrathymic injection of donor H-2b antigen could induce immunological tolerance of nerve transplantation.