Autoantibodies ; immunology ; Female ; Hepatitis, Autoimmune ; immunology ; Hepatitis, Viral, Human ; immunology ; Humans ; Male

Objective: To investigate the relationship between P27，P53 and PCNA expression in human gastric carcinoma tissues and clinicopathological parameters. Methods: The expression of P27，P53 and PCNA in 62 human gastric carcinoma tissues was examined with immunohistochemistry SP method. Results: Positive rates of P27，P53 and PCNA expression were 37.1％, 40.4%，83.9％. P27 expression was related with Bormann type, infiltrative depth, lymph node and distant metastasis and clinical stage. P53 expression was related with sex of patients, distant metastasis and clinical stage. PCNA expression was related with age of patients and infiltrative depth of tumor. P27 positive expression group was higher than negative group as to 5-year survival. P27 expression was in reverse relation with PCNA expression. Conclusion: The expression of P27, P53 and PCNA may be regarded as an important marker in judging malignant degree of gastric carcinoma,distant metastasis and prognosis.

Animals ; Disease Models, Animal ; Fatty Liver ; Male ; Mice ; Mice, Inbred C57BL

OBJECTIVETo evaluate the effects of microscopic observation drug susceptibility (MODS) in detecting susceptibility of Mycobacterium tuberculosis (MTB) onto four first line anti-tuberculosis drugs.

METHODThe 24-hole cell culture plates were used to test drug susceptibility of MTB on liquid medium, and the best detecting condition of MODS assay was probed; 66 clinical isolates susceptibility to streptomycin (S), isoniazid (H), rifampin (R) and ethambutal (E) were evaluated by using MODS assay and Lowenstein-Jensen (L-J), thereafter, all the inconcordance of isolates between MODS and L-J were tested for the minimal inhibitory concentrations (MIC).

RESULTSConcordance rate of the susceptibility to S, H, R and E in 66 clinical isolates detected by MODS and L-J was 97.0%, 90.9%, 95.5% and 86.4% respectively. If the results obtained by L-J were taken as a golden standard, the sensitivity, specificity, positive and negative predictive value (PPV and NPV) as well as accuracy of susceptibility test to S detected by MODS was 96.0%, 97.6%, 96.0%, 97.6% and 97.0%; 100%, 85.4%, 81.0%, 100% and 90.9% to H; 96.2%, 95%, 92.6%, 97.4% and 95.5% to R; 73.7%, 91.5%, 77.8%, 89.6% and 86.4% to E. There were 20 inconsistent results of 16 isolates by comparing MODS with L-J, and MIC yielded 16 results of those 14 isolates showing identical results with those of the MODS, while 4 results of other 4 isolates identical with L-J.

CONCLUSIONMODS method simultaneously provides drug susceptibility to S, H, R and E. MODS might be one of the rapid tools to diagnosing multidrug-resistant tuberculosis as it is rapid, simple, inexpensive and has high concordance with L-J drug susceptibility test.

Bacteriological Techniques ; methods ; Drug Resistance, Multiple, Bacterial ; Microbial Sensitivity Tests ; methods ; Mycobacterium tuberculosis ; drug effects ; Predictive Value of Tests ; Sensitivity and Specificity ; Tuberculosis, Multidrug-Resistant ; microbiology

BACKGROUND: The application of coronary stents, especially drug-eluting stents (DESs), has made percutaneous coronary intervention (PCI) one of important therapeutic methods for CHD. DES has reduced the in-stent restenosis to 5％–9％ and signifi cantly improved the long-term prognosis of patients with CHD. The study aimed to investigate the long-term efficacy and safety of domestic drug-eluting stents (DESs) in patients with acute coronary syndrome (ACS). METHODS: All patients with ACS who had undergone successful percutaneous coronary intervention (PCI) in the First Affiliated Hospital of Zhengzhou University from July 2009 to December 2010 were included in this study. Patients were excluded from the study if they were implanted with bare metal stents or different stents (domestic and imported DESs) simultaneously. The included patients were divided into two groups according to different stents implanted: domestic DESs and imported DESs. RESULTS: In the 1683 patients of this study, 1558 (92.6％) patients were folowed up successfuly for an average of (29.1±5.9) months. 130 (8.3％) patients had major adverse cardiovascular events (MACEs), including cardiac death in 32 (2.1％) patients, recurrent myocardial infarction in 16 (1％), and revascularization in 94 (6％). The rates of cardiac death, recurrent myocardial infarction, revascularization, in-stent restenosis, stent thrombosis and other MACEs were not significantly different between the two groups (allP>0.05). Multivarite logistic regression revealed that diabetes mellitus (OR=1.75, 95％CI: 1.09–2.82,P=0.021), vascular numbers of PCI (OR=2.16, 95％CI: 1.22–3.83, P=0.09) and PCI with left main lesion (OR=9.47, 95％CI: 2.96–30.26,P=0.01) were independent prognostic factors of MACEs. The Kaplan-Meier method revealed that there was no significant difference in cumulative survival rates and survival rates free from clinical events between the two groups (allP>0.05). CONCLUSIONS: The incidences of clinical events and cumulative survival rates are not statistically different between domestic DESs and imported DESs. Domestic DES is effective and safe in the treatment of patients with ACS.

Objective To evaluate the effects of microscopic observation drug susceptibility (MODS) in detecting susceptibility of Mycobacterium tuberculosis (MTB) onto four first line anti-tuberculosis drugs.Method The 24-hole cell culture plates were used to test drug susceptibility of MTB on liquid medium,and the best detecting condition of MODS assay was probed;66 clinical isolates susceptibility to streptomycin (S),isoniazid (H),rifampin (R) and ethambatal (E) were evaluated by using MODS assay and Lowenstein-Jensen(L-J).thereafter,all the inconcordance of isolates between MODS and L-J were tested for the minimal inhibitory concentrations (MIC).Results Concordance rate of the susceptibility to S,H,R and E in 66 clinical isolates detected bv MODS and L-J was 97.0%,90.9%,95.5% and 86.4% respectively.If the results obtained by L-J were taken as a golden standard,the sensitivity,specificity,positive and negative predictive value (PPV and NPV) as well as accuracy of susceptibility test to S detected by MODS was 96.0%,97.6%,96.0%,97.6% and 97.0%;100%,85.4%,81.0%,100% and 90.9% to H;96.2%,95%,92.6%,97.4% and 95.5% to R;73.7%,91.5%,77.8%,89.6% and 86.4% to E.There were 20 inconsistent results of 16 isolates by comparing MODS with L-J.and MIC yielded 16 results of those 14 isolates showing identical results with those of the MODS,while 4 results of other 4 isolates identical with LJ.Condusion MODS method simultaneously provides drug susceptibility to S,H,R and E.MODS might be one of the rapid tools to diagnosing muhidrug-resistant tuberculosis as it is rapid,simple,inexpensive and has high concordance with L-J drug susceptibility test.

Objective To evaluate the effects of microscopic observation drug susceptibility (MODS) in detecting susceptibility of Mycobacterium tuberculosis (MTB) onto four first line anti-tuberculosis drugs.Method The 24-hole cell culture plates were used to test drug susceptibility of MTB on liquid medium,and the best detecting condition of MODS assay was probed;66 clinical isolates susceptibility to streptomycin (S),isoniazid (H),rifampin (R) and ethambatal (E) were evaluated by using MODS assay and Lowenstein-Jensen(L-J).thereafter,all the inconcordance of isolates between MODS and L-J were tested for the minimal inhibitory concentrations (MIC).Results Concordance rate of the susceptibility to S,H,R and E in 66 clinical isolates detected bv MODS and L-J was 97.0%,90.9%,95.5% and 86.4% respectively.If the results obtained by L-J were taken as a golden standard,the sensitivity,specificity,positive and negative predictive value (PPV and NPV) as well as accuracy of susceptibility test to S detected by MODS was 96.0%,97.6%,96.0%,97.6% and 97.0%;100%,85.4%,81.0%,100% and 90.9% to H;96.2%,95%,92.6%,97.4% and 95.5% to R;73.7%,91.5%,77.8%,89.6% and 86.4% to E.There were 20 inconsistent results of 16 isolates by comparing MODS with L-J.and MIC yielded 16 results of those 14 isolates showing identical results with those of the MODS,while 4 results of other 4 isolates identical with LJ.Condusion MODS method simultaneously provides drug susceptibility to S,H,R and E.MODS might be one of the rapid tools to diagnosing muhidrug-resistant tuberculosis as it is rapid,simple,inexpensive and has high concordance with L-J drug susceptibility test.

Objective To explore the effects of cofilin on the actin eytoskeleton reorganization in osteoblasts induced by fluid shear stress. Methods Fluid shear stress ( 1.2 Pa) was applied to osteoblasts for 0(control group), 15, 30, 45, 60, 120 min in vitro. Cells were stained with fluorescein isothiocyanate (FITC)-phalloidin for fiber-actin, and confocal laser scanning microscope( CLSM ) was used to observe the fluorescence of fiber-actin. Western blotting was used to detect the expression of the cofilin and the phosphocofilin. Results Actin filaments became organized into stress fibers that were thicker and more abundant than those in non-flowed cells. The fluorescence intensity ( 38. 00 ± 6. 88 ) of fiber-actin after 120 min (42.93 ±6.41) loading it was 2.8 times as much as that in control group(15.41 ±3.60, P ＜0.05).Additionally, the level of phospho-cofilin protein was dramatically elevated after loading Fluid shear stress induced an initial decrease of cofilin at 60 min. However, at 120 min cofilin(0. 254 ±0. 026) increased to 1.5 times as much as that at 60 min (0. 162 ± 0. 004 ). Conclusions The results indicate that cofilin phosphorylation mediates fiber-actin reorganization in the osteoblasts induc ed by fluid shear stress.

OBJECTIVE: To compare the nephrotoxicity of high- and low-osmolar contrast media (HOCM and LOCM), and to determine the protective role of fosinopril or telmisartan and its possible mechanism. METHODS: Forty eight healthy SD rats were randomly divided into 6 groups: a normal control group, a glycerol control group, a low-osmolar contrast media (LOCM) group, a high-osmolar contrast media (HOCM) group, a fosinopril group, and a telmisartan group. Glycerine for inducing kidney damage was given to all rats except the normal control group. Twenty-four hours after the injection of glycerine, the mixed fosinopril suspension (10mg/kg) or telmisartan (5mg/kg) was poured into the stomach in the preventive group. Serum creatinine (SCr) and plasma angiotensin II (AngII) levels were detected by an automatical biochemical analyzer and radioimmunoassay; caspase-3 activity and claudin-1 expression of the renal tissue were detected by fluorometric method and immunohistochemical method. The renal injury was assessed by hematoxylin and eosin (HE) staining and terminal deoxynucleotide mediated nick and labeling (TUNEL) staining, respectively. RESULTS: In diatrizoate-injected rats, SCr and AngII levels were increased (P<0.05). Expression of claudin-1 protein and caspase-3 activity in the renal tissue was upregulated. The histologic changes and percentage of apoptotic cells were milder in the LOCM rats than those in the HOCM rats. In the group pretreated with fosinopril or telmisartan, no increase in the levels of SCr and AngII was discovered. The expression of claudin-1 protein and caspase-3 activity was significantly lower than that in the HOCM group. The renal injuries induced by diatrizoate were alleviated. CONCLUSION Both HOCM and LOCM could cause cellular apoptosis in the kidney.LOCM was less toxic to rat kidney than HOCM. Nephrotoxicity induced by HOCM might be related to caspase-3, claudin-1 and AngII. Fosinopril or telmisartan may protect the renal tissue from nephrotoxicity induced by diatrizoate.
Angiotensin II ; blood ; Animals ; Apoptosis ; drug effects ; Benzimidazoles ; pharmacology ; Benzoates ; pharmacology ; Caspase 3 ; metabolism ; Claudin-1 ; metabolism ; Contrast Media ; administration & dosage ; toxicity ; Creatinine ; blood ; Female ; Fosinopril ; pharmacology ; Kidney ; drug effects ; metabolism ; pathology ; Male ; Protective Agents ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Telmisartan

OBJECTIVETo discuss the diagnostic value of an ultrasonic assessing system for detecting the severity of hepatic fibrosis in patients with chronic hepatitis B (CHB).

METHODSUltrasonographic variables were analyzed in 110 CHB patients. An ultrasonic semi-quantitative scoring system using seven ultrasonic morphologic parameters, a Fisher discriminating function and three quantitative ultrasonic parameters was developed. The performance of these methods was also studied and compared.

RESULTSThe areas under the curve of the scoring system for different liver fibrosis stages were >or= S2: 0.946, >or= S3: 0.914, and S4: 0.915. The total score was well correlated with the histological stage of fibrosis (r=0.824, P < 0.001). There was a significant difference between the stages of fibrosis. The accuracy of the Fisher discriminating function for identifying three study endpoints was 76.5%, 78.2% and 67.3%. Combining the ultrasonic scoring system and the discriminating function, the specificity was 85%-90% and the accuracy was 77%-84%.

CONCLUSIONOur ultrasonic semi-quantitative scoring system is a noninvasive method for quantitating liver fibrosis. If it is used together with a discriminating function, the accuracy of diagnosing liver fibrosis can be significantly increased.

Adolescent ; Adult ; Aged ; Female ; Hepatitis B, Chronic ; diagnostic imaging ; Humans ; Liver Cirrhosis ; diagnostic imaging ; pathology ; Male ; Middle Aged ; Ultrasonography, Doppler, Color ; Young Adult