Alpha nicotinic acetylcholine receptors(α7nAChR) is a classic neurotransmitter receptor. Re-cent studies have found α7nAChR plays a key role in the cholinergic anti-inflammatory pathway. In this paper, biology characteristics ofα7nAChR molecular,the relationship with cholinergic anti-inflammatory pathway,anti-inflammatory effects of intracellular mechanisms,clinical application are reviewed.

AIM: To study the interaction effects of Astragalus polysaccharide(APS) and total glucosides of paeony(TGP) with various dosage on the platelet aggregation. METHODS: Platelet aggregation was estimated by the turbidimetric method. The best interaction effects were determined by uniform design method. RESULTS: APS showed apparent anti-platelet effects and better combination with TGP,and the ratio of 121 was the best one. CONCLUSION: APS concerted with TGP inhibits platelet aggregation.

Objective:To explore the serum IgG4 level in patients with IgG4-related Hashimoto thyroiditis(IgG4 HT),and its clinical implications.Methods:The serum IgG4 was determined in 129 patients with HT using enzyme-linked immunosorbent assays and classified into two subgroups based on IgG4 level:IgG4 HT group(IgG4≥135 mg/dl)and non-IgG4 HT group(IgG4<135 mg/dl).And the levels of serum thyroid hormone and thyroid peroxidase antibodies(TPOAb)and thyroglobulin antibodies(TgAb)were measured by electro-chemiluminescence immunoassay.Ultrasonic imaging of the thyroid gland were detected.Results:The TPOAb levels correlated significantly with both serum IgG4 levels(r=0.437 1,P=0.012 7)and IgG4/IgG ratios(r=0.396 2,P=0.023 5)in the patients with HT.Compared with that of non-IgG4 HT group(n=97),IgG4 HT group(n=32):①The mean age was lower(P=0.029 3);②Higher levels of serum TPOAb(P=0.002 1)and TgAb(P=0.012 8);③Ultrasound imaging:the more obvious thyroid nodule(P=0.022 6);④Logistic regression analysis showed that serum IgG4 and TPOAb were the risk factor for thyroid nodules(OR=1.672,P=0.021;2.549,P=0.014 ).Conclusion: IgG4 HT patients existed corresponding clinical characteristics.For the HT-patients with elevated serum IgG4,thyroid function and morphology should were more closely monitored.

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Objective To explore the value of blood lipid and CA125 in identification diagnosis between lung cancer and pulmo‐nary tuberculosis .Methods The blood lipid and serum CA125 levels in 131 patients with lung cancer( Ⅰ - Ⅳ stage) ,53 patients with pulmonary tuberculosis and 60 normal controls were determined by biochemstry ,immunoturbidimetry and electrochemilumi‐nescence immunoassay and was done compared study .Results The serum TC and HDL‐C level in 131 patients with lung cancer were decreased with severity and were lower than in those of in 53 patients with pulmonary tuberculosis(TC :P< 0 .05 ,< 0 .05 ,<0 .01 and < 0 .001 respectively ;HDL‐C :P< 0 .05 ,< 0 .05 ,< 0 .01 and < 0 .01 respectively) .The serum LDL‐C level was no differ‐ences between lung cancer( Ⅰ - Ⅲ stage) and in 53 patients with pulmonary tuberculosis(P> 0 .05) only the lung cancer( Ⅳ stage) was a little increased(P< 0 .05) .The serum TG and ApoB/ApoA1 ratio levels in 131 patients with lung cancer( Ⅰ - Ⅳ stage) were increased with severity and were significantly higher than in those of 53 patients with pulmonary tuberculosis (TG :P < 0 .05 ,< 0 .05 ,< 0 .01 and < 0 .01 respectively ;ApoB/ApoA1 :P< 0 .05 ,< 0 .05 ,< 0 .01 and < 0 .01 respectively) .The level of CA125 in 131 patients with lung cancer was significantly higher than in those 53 patients with pulmonary tuberculosis(P< 0 .001) .Conclusion The serum TC and HDL‐C ,TG ,ApoB/ApoA1 ratio and CA125 levels may be the indexs of identification diagnosis between lung cancer and pulmonary tuberculosis .

Objective To explore the correlation among serum immunoglobulin G4 (IgG4),transforming growth factor-β1 (TGF-β1),connective tissue growth factor (CTGF) and Hashimoto thyroiditis (HT) thyroid fibrosis.Methods Case-control study.A total of 159 patients with HT visiting the Wuhan Union Hospital were collected from May 2013 to March 2015.All patients were divided into IgG4 HT group (IgG4≥1.35 g/L,n =39) and non-IgG4 HT group (IgG4 ＜ 1.35 g/L,n =120).The serum IgG4,TGF-β1 and CTGF were determined by enzyme-linked immunosorbent assays.The levels of serum thyroid peroxidase antibodies (TPOAb) and thyroglobulin antibodies (TgAb) were measured by electrochemiluminescence immunoassay.Meanwhile,ultrasound of the thyroid gland was performed.Statistical analysis was performed by use of SPSS 17.0 software.The Mann-Whitney U test was used to compare two independent samples of non-normal distribution data,Fisher's exact test was employed to analyze thyroid imaging differences,correlation test was performed to examine various correlations,multivariate Logistic regression analysis was used to evaluate thyroid fibrosis risk factors.Results Compared with that of non-IgG4 HT group,IgG4 HT group:TPOAb [(455.2 ± 169.7) vs.(186.5 ± 102.3),U =27.0,P=0.003],TgAb [(984.6±452.7) vs.(289.3 ±245.1),U=30.5,P=0.017],TGF-β1 [(1.45±0.97) vs.(0.30±0.22),U=119.0,P=0.035] andCTGF [(88.65±14.39) vs.(62.21± 8.76),U =69.0,P =0.039] were significantly higher,thyroid ultrasound showed obvious fibrosis (35/4 vs.32/88,x2 =48.03,P =0.000);significant positive linear correlation between IgG4 and TPOAb (r =0.719,P =0.000),CTGF and TGF-β1 (r =0.500,P ＜ 0.01) respectively.Logistic regression analysis indicated that all the serum IgG4,TPOAb,TGF-β1 and CTGF were independent risk factors of thyroid fibrosis [IgG4,odds ratio (OR) =1.968,P =0.014,95％ confidence interval (CI) =1.287-2.041;TPOAb,OR =2.537,P =0.012,CI =1.322-2.869;TGF-β1,OR =1.549,P =0.023,CI =1.105-1.498;CTGF,OR =1.185,P =0.046,CI =1.204-1.625].Conclusion The highlevel of circulating antibodies,IgG4,TGF-β1 and CTGF were significantly associated with thyroid fibrosis,and were independent risk factors of HT fibrosis.

Objective To investigate the corelationship between proton pump inhibitors (PPI) and the incidence of hospital-acquired pneumonia (HAP) in abdominal surgical patients. Methods A total of 283 cases admitted from 2010 to 2014 were divided into PPI group (n = 326) and HRA group (n = 92). In PPI group, patients were divided into omeprazole subgroup (subgroup A, n = 146), lansoprazole subgroup (subgroup B, n = 102) and pantoprazole subgroup (subgroup C, n = 78) by the types of PPI. In HRA group, patients were divided into famotidine subgroup (subgroup D, n = 58) and ranitidine subgroup (subgroup E, n=34) by the types of histamine-2 receptor antagonist (H2RA). The incidence of stress ulcer bleeding (SUB) and HAP were calculated, while mechanical ventilation period (MV), ICU stay and 28-day-mortality were compared. Results There were lower incidences of SUB and HAP, shorter MV and ICU stay and lower 28-day-mortality in PPI group than those in HRA group (P < 0.05). In three subgroups of PPI group, there were no significant difference on incidence rate of SUB and HAP, as well as MV, ICU stay and 28-day-mortality. Conclusion The incidence rates of SUB and HAP are lower by using PPI than H2RA in abdominal surgical patients, as well as MV, ICU stay and 28-day-mortality. Different types of PPI have no effect on the incidence rate of HAP in abdominal surgical patients.

Objective To investigate the predictive value of neutrophil to lymphocyte ratio (NLR) in rheumatoid arthritis (RA) by using the retrospectively analysis method .Methods The blood cell differential counting in 150 patients with RA ,101 patients with non‐RA diseases and 151 individuals undergoing the healthy physical examination were selected in a hospital from January 2014 and February 2015 .Blood cells classification and count were performed .Then the NLR difference was compared among these three groups .The clinical and laboratory data in the patients with RA were collected and the association between NLR and other in‐flammatory indicators was statistically analyzed .Moreover ,the diagnostic and predictive value of NLR for RA was also analyzed by using the receiver operating characteristic (ROC) curve .Results The NLR level in the RA patients was significantly higher than that in the non‐RA patients with autoimmune disease and the healthy controls .The diagnostic sensitivity of NLR and neutrophil count(NC) for RA was equivalent(62 .4% vs .67 .5% ) ,but NLR had higher diagnostic specificity than NC (85 .5% vs .68 .7% ) . The correlation analysis indicated that NLR revealed a weak but significant correlation with ESR (r=0 .210 ,P=0 .043) and CRP (r=0 .149 ,P=0 .043) respectively .Conclusion NLR has more predictive value for RA than those traditional inflammatory mark‐ers including CRP ,NC and lymphocyte count ,which is expected to serve as a new biomarker for independently predicting the RA in‐flammation severity .

Objective To establish a HPLC method for the content determination of irbesartan in drugs.Methods The diamonsil C18 column (150 mm ×4.6 mm,5μm) was used, with the mobile phase of phosphoric acid solution-acetonitrile(adjusted to pH 3.2 with triethylamine)(62:38).The column temperature was 35℃, with the UV detection wavelength of 245 nm and a flow rate of 1.0 mL/min.Results Irbesartan exhibited a good linear relationship with the peak area in the concentration range of 0.04-0.40 mg/mL with the correlation coefficient of 0.999 99.The average recovery was 98.37% with RSD of 0.7%(n=9).Conclusion This method is simple and accurate with wide linear range and good reproducibility,and can be used to determine the content of irbesartan in drugs.