Objectives To establish a simple,quick,accurate serodiagnostic assay for detecting serum antibodies against Helicobacter pylori(H.pylori).Methods We established quick immunocolloidal gold filtration assay(DIGFA) by combining colloidal gold labelling technique with filtration method.145 sera from cases with H.pylori infection were detected by DIGFA,and the results were compared with that of ELISA and pathological examinations.In addition,blocking test and human IgG protein detection were conducted.The sensitivity,specificity of DIGFA were analysed.Besides,DIGFA was applied to investigate the H.pylori infection situation among persons of different ages.Results The coincidence rate reached 95 1% compared with the ELISA,and it was 88 8% compared with pathological the examination.The detectable minimum amount of IgG was 10?g/mL.The antibodies detected by DIGFA proved to be specific antibodies by blocking test.The human H.pylori infection rate among 216 persons reached 42 5% by DIGFA.Conclusions DIGFA can be applied effectively in clinical diagnosis and epidemiological survey.

Objectives To evaluate the relationship between the expression of B7-1 in liver tissue and the effect of interferon-alpha(?-IFN) treatment in patients with chronic hepatitis B(CHB).Methods The expression of B7-1 in liver biopsy specimens from 68 CHB patients was studied with immunohistochemistry before ?-IFN treatment.Results B7-1 was expressed in 45(66 2%) liver tissues among 68 patients with CHB,but none in 5 normal controls.The total response ratio of ?-IFN in patients with B7-1 positive was 66 7%(30/45),which was significantly higher than 39 1%(9/23)in the patients with B7-1 negative (? 2=7 20,P

Objective To study the influence of diabetes on the CK activity in different tissues of streptozotocin induced diabetic rats.Methods Serum samples,heart and skeletal muscles,brain and bladder tissues were collected from both streptozocin induced diabetic rats and control group.CK was measured by enzymatic method.Results The body weight,heart weight,and brain weight reduced significantly compared with control group(P

Objective To study the frequencies and therapeutic effect of anxious and depressive disorders in patients with stroke.Methods 86 patients were assessed with Hamilton anxiety scale(HAMA)and Hamilton depression scale(HAMD).The patients with anxious and depressive disorders were treated with antianxiety agents and antidepressants such as benzodiazepines,fluoxetine,and venlafaxine.Results In the 86 patients,the frequencies of anxious and depressive disorders were 48\^8%,38\^4%,respectively,recovery rates of treatment were 83\^3%,75\^8%,respectively,in which the scores of HAMA and HAMD after treatment were much less than that before treatment(P

Objective To examine the change of erythrocyte immune adherence parameters during the haemodialysis and the influence of different biocompatible dialysis membranes on it.Methods We have observed the dynamic trend of erythrocyte immune adherence parameters at different hemodialysis phase by way of different biocompatible membrane.Results RBC C\-3b declined and RBC IC increased obviously in uremia patients.During the haemodialysis,RBC C\-3b declined even more in the early phase and then increased gradually;RBC IC increased gradually in early phase,and then kept steady.Cu membrane influenced the erythrocyte immune adherence function greatly,Ps membrane moderately,and PMMA membrane slightly.Conclusion The dynamic trends of erythrocyte immune adherence parameters change with the different biocompatible membrances used during hemodialysis.

Objective The purpose of the studies was to explore the elective ways to enhance the ability of routine rest To - 99m - sestamibi (MIBI) myocardial scintigraphy to assess myocardial viability during the percutaneous transluminal coronary angioplasty (PTCA ) in assessing viable myocwhium. Methods Three methods, (1) rest- nitroglycerine augment, (2) rest-gated, (3) rest-delayed 99mc - MIBI myocardial scintigraphies, were performed in 20,30 and 10 patients with coronary artery disease treated with coronary revascularization. Results The results showed that in evaluating viable myocardium, the positive predictive values for methods(1 )-(3) were 95. 9%,68. 5% and 84.1%,mepectively, the negative predictive values were 68. 2%, 90. 1% and 90.0%, respecihvely, the predictive accuracy rates were 82. 5%, 77. 3% and 87.2%. Conclusions The results indicate that identification of viable myocardium with 98mTc - MIBI can be effectively enhanced with methods (1) - (3); the 99mTc - MIBI myocardial scintigraphy can provide objective data for evaluating treatment effects by coronary revascularization.

Objective To alleviate the side effects of glucocorticoid, we established a new procedure - intra - renal adipose capsule injection therapy to treat chronic glomerulonephritis. Methylprednisolone was injected into human renal adipose capsules of patients to treat primary glomerulonephritis. Methods 21 patients were diagnosed as primary glomerulonephritis by renal biopsies. Under the guide of sonograph,40mg methylprednisolone was injected into each renal adipose capsule of the patients twice a week, and each one of them was totally given ten times of the treatment. The urinary protein,plasma albumin, serum creatinine and blood pressure before and after the treatment were measured. Results The condition of most patients had been improved after the treatments. The excretion of urinary protein in 18 of 21 patients (85.1% ) had significantly been decreased (P

Objective To measure serum thrombopoietin(TPO)levels in thrombocytopenic conditions of aplastic anemia(AA)and idiopathic thrombocytopenic purpura(ITP)and explore the clinical significance of the changes of TPO levels.Methods Serum TPO concentration was determined in AA(n=13),ITP(n=20)and normal controls(n=17)by using an enzyme linked immunosorbent assay(ELISA).Results Serum TPO level in AA patients was much higher than that in normal controls[(683\^48?414\^73)ng/L vs (99\^41?73\^84)ng/L,P0 05].Furthermore,there was an inverse correlation between TPO concentration and platelet count in AA patients(r=-0\^71,P

Objective To investigate the relationship between the expression of TGF ? receptor Ⅰ(RⅠ)and apoptosis in gastric carcinoma and precancerous lesions,and their effects in the development of gastric carcinoma.Methods The expressions of TGF ?RⅠ in 103 cases,including CSG(30 cases),IM(30 cases),Dys(18 cases)and GAC(25 cases)were detected by immunohistochemical techniques(SP),apoptosis cells were examined by terminal deoxynucleotidyl transferase(TdT) mediated dUTP nick end labelling(TUNEL).Results Both the expressions of TGF ?RⅠ and apoptosis indexes(AI:percentage of TUNEL positive cells)showed negative correlation with the degree of gastric mucosa lesions from CSG,IM,Dys to GAC(r=-0\^7272,P

Objective To investigate the diagnostic significance of cytology and telomerase activity in the exfoliated cells of cardia obtained from endoscopic brushing in the cardiac cancer.Methods The technique of the qualitative TRAP siver staining and quantitative TRAP PCR ELISA were employed to detect telomerase activity in the exfoliated cells of cardiac obtained from endoscopic brushing in 72 cases with cardial lesions,cytological diagnosis was made at the same time.Results Telomerase activity with cardiac cancer group(1\^521?0\^192)was significantly higher than that with cardialitis group(0\^065?0\^014).Positive rate of telomerase activity detected in cardiac cancer group(88\^89%)was significantly higher than that with cardialitis group(11\^11%).Positive rate of telomerase activity detected in cardiac cancer group(88\^89%)was significantly higer than cytological examination(77\^78%).The diagnostic rate of cardiac cancer was improved to 93\^33% if telomerase activity and cytology were examined at the same time.Conclusion Results show that the combination of cytology and telomerase activity in the exfoliated cardiac cells may be an effective and sensitive method in the diagnosis of cardiac cancer.This research can be a basis for the mass screening of cardiac cancer.