Objective: To prepare polyclonal antibody of transactivated protein 5 of hepatitis C virus nonstructural 5A (NA5ATP5) and to explore its expression in the liver tissues. Methods: In Escherichia coli BL21, the prokaryotic expression vector pET32a(+)-NS5ATP5 was induced by isopropyl-β-D-thiogalactoside (IPTG), and it was analyzed with sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and Western blotting. And the purified protein was used to immunize the rabbit to prepare polyclonal antibody, with which we studied the function of NS5ATP5 by determining the different liver tissues with the streptavidin-perosidase (SP) immunohistochemistry method. Results: Recombinant NS5ATP5 (molecular weight, 65 kD) and polyclonal antibody were successfully prepared. NS5ATP5 expression in the liver of patients with chronic HCV infection was much higher than that of a normal person, and it was detected mainly in the cytoplasm. Conclusion: The findings of the expression difference between HCV patients and normal people led to a novel diagnostic marker to detect HCV infection.

Objective: To prepare polyclonal antibody of transactivated protein 5 of hepatitis C virus nonstructural 5A (NA5ATP5) and to explore its expression in the liver tissues. Methods: In Escherichia coli BL21, the prokaryotic expression vector pET32a(+)-NS5ATP5 was induced by isopropyl-β-D-thiogalactoside (IPTG), and it was analyzed with sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and Western blotting. And the purified protein was used to immunize the rabbit to prepare polyclonal antibody, with which we studied the function of NS5ATP5 by determining the different liver tissues with the streptavidin-perosidase (SP) immunohistochemistry method. Results: Recombinant NS5ATP5 (molecular weight, 65 kD) and polyclonal antibody were successfully prepared. NS5ATP5 expression in the liver of patients with chronic HCV infection was much higher than that of a normal person, and it was detected mainly in the cytoplasm. Conclusion: The findings of the expression difference between HCV patients and normal people led to a novel diagnostic marker to detect HCV infection.

Based on the development trend of the three -in-one system of “medical treatment, teaching and scientific re-search”, the main university affiliated hospitals at home and abroad need to ensure the sustaining development of hospital scientific re-search and improve the core competitiveness of hospital by improving the scientific research management , such as focusing more atten-tion on the scientific research policy , improving the quality of management staff , constructing the diversification mechanism , integra-ting resources, constructing information platform, managing the funds and archives, and strengthening the whole process supervision.

Objective To explore the value of multivoxel 1H-MRS in the differential diagnosis of corpus callosum lesions.Methods 17 patients with corpus callosum lesions confirmed by clinical or pathological method underwent MRS examination.These patients included 2 cases of lymphoma,4 cases of Marchiafava-Bignami disease,3 cases of glioma, 7 cases of infarction,and 1 case of multiple sclerosis.MRS features of lesions were analyzed.Results 2 cases with corpus callosum lymphoma revealed significantly increased Cho peak, decreased Cr and NAA peak,towering Lip peak.Among 4 cases with Marchiafava-Bignami diseases, 2 cases revealed increased Cho/Cr and decreased NAA/Cr,1 case showed normal,1 case revealed inverted Lac peak.For 3 cases with corpus callosum glioma,NAA peak decreased or disappeared,and Cho peak increased in varying degrees.7 cases with corpus callosum infarction revealed significant inverted Lac peak, and NAA peak decreased in varying degrees.1 case of multiple sclerosis revealed increased Cho peak,decreased NAA peak,and inverted Lac peak during acute period with enhancement,while these features returned normal during inactive period.Conclusion Multivoxel 1H-MRS plays an important role in the differential diagnosis of corpus callosum lesions.

Objective To determine the efficacy of glucose-loweringtreatment by proton magnetic resonance spectroscopy (1H-MRS).Methods Bilateral frontal lobes of 45 male patients with type 2 diabetes mellitus (T2DM) underwent 1 H-MRS separately bythe time it was first diagnosed.Among them,30 were treated with insulin,15 were rejected.The bilateral frontal lobes of all patients were re-examined with 1 H-MRS after 6 months.The ratios of metabolites in the frontal lobe were recorded and compared,and observing whether the lactate(Lac) peak appeared or not.Results Significantly higher values of the N-acetylaspartate (NAA)/creatine (Cr)ratio and NAA/choline (Cho) ratio after 6 months (2.414 2± 0.206 6 and 2.244 2±0.341 5) were found in bilateral frontal lobes compared with pre-therapy (1.905 3±0.135 7 and 1.906 0±0.322 1)(P＜0.05).Significantly lower values of the NAA/Cr ratio and NAA/Cho ratio in the refuse treatment group(1.504 2 ± 0.262 4 and 1.510 0± 0.220 8) were found in bilateral frontal lobes compared with pre therapy (1.960 0±0.175 0 and 1.880 8±0.297 0)(P＜0.05).Lac peak was not detected in the all experiments.Conclusion 1 H-MRS provides valuable information in the assessment and evaluation of clinical efficacy and prognosis of T2DM by detecting the changes of brain metabolism.

Adult ; Esophagus ; injuries ; Humans ; Male ; Paraquat ; poisoning ; Rupture ; chemically induced

Objective To evaluate the curative effect and optimal indications of reformed percutaneous lumbar diskectomy (RPLD) for the treatment of lumbar disc herniation.Methods One handred and thirty-three patients with lumbar disc herniation were treated by RPLD, of them, 20 cases were lumbar disc extrusion and 113 cases were lumbar disc protrusion. After the procedure, 85 patients underwent flush of intervertebral space with antibiotic saline and 48 patients underwent 10 ml(40?g/ml) medical ozone-injection inside the disc to prevent infection. All patients were followed up over the course of 3 months. The therapeutic effect was evaluated according to the MacNab criteria. Results All 133 cases underwent RPLD were successful. The total efficacy was 81.9%, There were no serious complications after operations. Conclusion RPLD is an effective method in the treatment of lumbar disc herniation. Both intradiscal ozone-injection or intradiscal antibiotic saline flush after RPLD can reduce the opportunity of infection.

Biomarkers ; blood ; Child ; Child, Preschool ; Critical Illness ; Early Diagnosis ; Enzyme-Linked Immunosorbent Assay ; Female ; Gastrointestinal Diseases ; blood ; diagnosis ; etiology ; Humans ; Infant ; Male ; Peptides ; blood ; Severity of Illness Index ; Trefoil Factor-2

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Biopsy ; methods ; Child ; Child, Preschool ; Endoscopy ; Female ; Humans ; Larynx ; pathology ; Male ; Middle Aged ; Nasopharynx ; pathology ; Young Adult

Objective To observe the effect of early intervention on the oligodendrocyte-myelin glycoprotein(OMgp) mRNA expression of brain injury neonatal rats caused by intrauterine infection.Methods 1.Twenty-eight Wistar pregnant rats were randomly divided into 2 groups:lipopolysaccharide(LPS)-treated group and saline control group.Pregnant rats were consecutively injected with LPS (450 ?g?kg-1) or saline on the 18th gestation age.After birth,the placentas were taken out and made HE staining to observe intrauterine infection.2.Thirty neonatal rats in the saline control group and 55 rats in the LPS-treated group were randomly selected which were divided into intervention group (n=25) and no-intervention group (n=25).The second post-natal day (P2) rats in intervention group were treated by early touch and enriched environment.The neonatal rats in the no-intervention group and saline control group were fed in a routine way.Five cases of P1 rats were selected respectively from the LPS-treated group and saline control group,and brain tissue pathological section was made to observe the condition of brain injury.3.Five cases of P1,P3,P7,P28 and P42 rats were selected from the saline control group,intervention group and no-intervention group to detect the OMgp mRNA expression levels by using the real time polymerase chain reaction me-thod.Results 1.There were a great number of neurophilic granulocytes in the placentas in the LPS-treated group.2.Brain tissue pathological of P1 in the saline control group had complete substantia alba structure,ordered disposition and lightly stained clear chromatospherite.While in the LPS-treated group, there existed brain tissue looseness,colloid cell aggregation and oligodendrocyte cytoreduction in the position of substantia alba,callositas and capsula interna.Intraventricular hemorrhage,substantia alba blood vessel dilatation and blood capillary angiorrhexis and hemorrhage could also be found.3.There was a higher increase in OMgp mRNA expressions of brain tissue in the LPS-treated group at P1,P3,P7,P28,P42 than those in the saline control group (Pa