To explore the relationship between clinical findings and pathological changes of IgA nephropathy (IgAN), 37 children with IgAN were undertaken clinical classification and renal-pathological comparison including glomerulus change, renal tubule-interstitial change and immunopathology. The results showed that there were 18 (49%) cases with hematuria, 14 (38%) cases with nephrotic syndrome, 3(8%) cases with both of hematuria and proteineuria, and 2 (5%) cases with nephritic syndrome in the clinical classification. 54% of cases with glomerulus changes was as class III. No significant relationship was found between clinical classification and glomerulus changes. There were 24 cases with renal-tubule interstitial changes and 7 cases with hematuria. 43% of them were classified as class I and 57% as class II.All cases with nephrotic syn-drome developed renal tubule-interstitial change. 78% (11 cases) of them were as class II and 22% (3 cases) as class III. Besides, 2 of 3 cases with both of hematuria and proteineuria and 1 of 2 cases with nephritic syndrome also manifested renal tubule-interstitial change. There were four phenotypes were observed in immunopathology including 16 cases of them as IgA, 6 cases as IgAG, 10 cases as IgAM and 5 cases as IgAGM, respectively. 66% of cases with hematuria was found as IgA and 50% of cases with nephrotic syndrome as IgAM. It is concluded that hematuria can be a main clinical finding in both of IgAN and nephrotic syndrome. Glomerulus changes is usually not correlated with clinical classification. There is a significant renal tubule-interstitial change in cases with nephrotic syndrome. Hematuria is usually as IgA and nephrotic syndrome as IgAM in immunopathology.

Objective To explore the relationship between clinical and pathological changes of complement 1q(C1q) nephropathy. Methods Clinical manifestation, pathologic features including glomerulus change, renal tubule - interstitial change and im-munopathology were compared between 10 cases of C1q nephropathy in children, who were diagnosed by renal biopsy. Results Presentation included idiopathic nephritic syndrome(6 cases), simple hematuria(2 cases), nephritic syndrome(1 case), rapidly progressive glomerulonephritis( 1 case); Renal biopsy revealed focal segmental glomerulosclerosis( FSGS) in 5, minimal-change disease( MCD) and mesangial proliferative glomerulonephritis (MsPGN) respectively in two and crescentic glomerulonephritis in one. In addition, there were renal - tubule interstitial changes with 3 cases of grade I and grade II each other, 2 of grade III , 1 of grade IV . The prominent immunofluorescent features was the presence of bright mesangial deposition of C1q. The average follow - up time was 25.7 months. Six cases presenting nephrotic syndrome were resistant to steroid, but 5 were released after immunosuppressive therapy, the other had progressive renal insufficiency. Conclusions C1q nephropathy falls with the clinical - pathologic spectrum of FSGS generally. It is also presented as steroid - resistant nephritic syndrome. Moreover, the prognosis of C1q nephropathy is related to renal tubulointerstitial pathologic lesions not to C1q deposition.

This study aimed to investigate the drug susceptibility of wild-type and mutant avian influenza A (H7N9) virus neuraminidase (NA) to oseltamivir and zanamivir. Codon optimized DNA of H7N9 (A/ Hangzhou/1/2013) NA was synthesized and constructed into the pcDNA3.1/His vector (NA(H7N9-WT)). Mutant NA(H7N9-H274Y) and NA(H7N9-R292K) plasmids were constructed by directed mutagenesis PCR using NA(H7N9-WT) plasmid as the template followed by sequencing. NA plasmids were transfected into 293T cells and cell lysates containing NAs were collected 48 h post-transfection. Wild-type and mutant NAs were analyzed by Western blotting and their activities were tested by the 4-MUNANA-based assay. All three NAs were expressed and enzymatic activities were confirmed. The effects of oseltamivir and zanamivir on all three NAs were then tested. It showed that the half maximal inhibitory concentrations (IC50s) of oseltamivir carboxylate on NA(H7N9-WT), NA(H7N9-H274Y) and NA(H7N9-R292K) were 1.6 nM, 15.1 nM, and > 1 000 nM with fold changes of 9 and > 625, respectively. The IC50 values of zanamivir on NA(H7N9-WT), NA(H7N9-H274Y), and NA(H7N9-R292K) were 1.1 nM, 1.4 nM, and 38.0 nM with fold changes of 1.3 and 34, respectively. These results indicated that oseltamivir and zanamivir could significantly inhibit NA(H7N9-WT). NA(H7N9-R292K) showed high-level resistance to both drugs (34-fold and 625-fold) and NA(H7N9-H274Y) was sensitive to both (1.3-fold and 9-fold). These results indicated that both oseltamivir and zanamivir could be used for patients infected with the H7N9 virus. However, when patients carried the H7N9 virus with a NA R292K mutation, other medications would be preferred over oseltamivir or zanamivir.
Antiviral Agents ; pharmacology ; Humans ; Influenza A Virus, H7N9 Subtype ; drug effects ; enzymology ; genetics ; Influenza, Human ; virology ; Microbial Sensitivity Tests ; Mutation ; Neuraminidase ; antagonists & inhibitors ; genetics ; metabolism ; Oseltamivir ; pharmacology ; Viral Proteins ; antagonists & inhibitors ; genetics ; metabolism ; Zanamivir ; pharmacology

In current years,there is a tendency for HIV/AIDS to shift to adolescent population,thus HIV/AIDS education aimed at college students is drawing increasing attention from all parts including the governments,colleges and universities,and the whole society.By analyzing the current spreading trend of HIV/AIDS,this thesis introduces the modern teaching methods in HIV/AIDS education and existing problems,and tentatively introduces movie appreciation as a novel teaching approach.The application advantages of movie appreciation and concrete examples from six universities in Shanxi Provinces have also be delivered,aiming to explore a new pattern for HIV/AIDS education among Chinese college students.

Objective To establish a system for detecting integration frequency of antibiotic resist-ante integron.Methods We cloned integron and aadA2 gene cassette into different sites of plasmid pACYC 184,and the plasmid was transformed into E.coli BL21(DE3)containing plasmid overexpressing integrase.The positive clone was cultured overnight and then was spread on LB agar plate with or without streptomycin respectively,and with appropriate amount of bacteria.Clones after cultured overnight were counted to detect the integration frequency.Meanwhile we used positive clones in LB agar plate containing streptomycin as templates to carry out PCR.The purified PCR products were sequenced to identify the integration sites.Re-suits The integration frequency of integron capturing aadA2 gene cassette in BL21(DE3) host was 1.1 x 10-3 mainly at attI site.Conclusion This system can be used to detect integration frequency.

ObjectiveTo established a cell line that expresses hBD1 stably,and detected the antimicrobial activity of the hBD1 to the muhidrug resistant bacterial strains.MethodsRecombinant plasmid was introduced into COS-7 cells by lipofectamine,cells were selected in culture medium containing G418 to acquired the monoclonal cell lines,total RNA were extracted from the cultured cells,expression levels of hBD1 mRNA was identified by RT-PCR,collected the supernatant solution of the cultured cell,expression levels of protein was identified by Western blot.Put the expression products and resistant organisms mixed together,after incubation in different times in 37℃,coating the mixtures in LB flat,then obtained the ratios between colonies number of experimental groups and colonies number of control groups,put those ratios as the survival rate of the drug resistance bacterias.Results The monoclonal cell lines had obtained after screened with G418,the hBD1 gene could be detected both at transcriptional and protein levels,Under the influence of expression product hBD1,survival rate of muhidrug-resistant Acinetobacter baumannii,multidrug-resistant Escherichia coli and multidrug-resistant Klebsiella pneumoniae could reduced to 9%,22% and 50%,but survival rate of multidrug-resistant Stenotrophomonas maltophilia is not have apparente difference with the control group.ConclusionThe stably-transfected cell line of hBD1 was successfully constructed,and the expression products of hBD1 showed the antimicrobial activity toward multidrug resistant bacterial strains.

Objective The article was to promote the rational use of antibiotics by comparative analysis on antimicrobial us -age before and after the special rectification on clinical application of antibacterial drugs in our hospital . Methods Medical record data of 132 inpatients before the rectification and 167 inpatients after the rectification were randomly collected for the rational compara-tive analysis on microorganism submission rate for treatment , usage of antibiotics and medication for typeⅠandⅡincisions . Results The microorganism submission rate was much higher , especially the special grade antibiotics (81.5 %vs 32.1%).There was also a remarkable decrease in the percentage of antibiotics use , the strength of utilization and the average drug cost .The amount of antibiotic prophylaxis without indication and the length of medication for typeⅠincisions showed a remarkable decrease (P<0.05).Remarkable decrease was also observed in the irrational usage rate of antibiotic prophylaxis , dosage, medication time and drug replacement for typeⅠand Ⅱincisions (P<0.05). Conclusion The special rectification measures are effective and practical , which can promote the rational use of antibiotics .

Objective To establish a mini-column centrifugation-HPLC method to determine the entrapment efficiency of levodopa-loaded PEGylated-solid lipid nanoparticles.Methods A dextran gel(Sephadex G-50) mini-column centrifugation was employed to separate the free drug from solid lipid nanoparticles.The content of levodopa was qualified by HPLC.Results Under the applied chromatographic condition,the excipients had no influence on the determination of levodopa.A calibrated linear of levodopa concentration was within 10.54-527.00 μg·mL-1.The recoveries of high,medium and low concentrations of levodopa were 99.13%,99.51% and 99.04%(RSD were 1.25%,1.91% and 1.71%), respectively.The free levodopa was well separated from solid lipid nanoparticles by using mini-column centrifugation.The addition of blank solid lipid nanoparticles recovery was 98.84% with RSD of 0.80%(n=3).The average adsorption rates of the three concentrations of free levodopa were 100.00%,98.75% and 98.56%(RSD were 0.00%,0.19% and 0.18%,n=3),respectively.The adsorption rate of the physical mixtures of three different concentrations of drugs and empty PEGylated solid lipid nanoparticles were 99.68%,98.46% and 99.21%(RSD were 1.52%,0.23% and 0.21%),respectively.Conclusion The method was simple,accurate and reproducible,which can be used for determination of the entrapment efficiency of levodopa-loaded PEGylated-solid lipid nanoparticles.

ObjectiveTo investigate the test-retest reliability about the lower extremities static joint position sense which was tested with the Tetrax balance-test-training system, and the dynamic joint position sense which was tested with the Functional Squat System; and to investigate the relationship between the static and the dynamic joint position sense of lower extremities of the patients with knee osteoarthritis. Methods30 patients with knee osteoarthritis were tested with the lower extremities static and dynamic joint position sense twice within 7 d with the Tetrax balance-test-training system and the Functional Squat System. ResultsThe intraclass correlation coefficient (ICC) of the sum of the coefficient of medium-to-high-frequency in postural sway was 0.95 (P<0.001). The ICC of the reposition accuracy error mean of the unaffected/mild or affected/severe extremity were respectively 0.59 and 0.60 (P<0.001). The Pearson correlation coefficients of the sum of the coefficient of medium-to-high-frequency in postural sway and the reposition accuracy error mean of the unaffected/mild or affected/severe extremity were respectively 0.40 and 0.54 (P<0.05). ConclusionThe lower extremities static joint position sense test of the Tetrax balance-test-training system is well reliable, as well as the dynamic joint position sense of the Functional Squat System. They can be used together to evaluate the lower extremities proprioception in the patients with knee osteoarthritis.

OBJECTIVE:To determine the contents of citric acid in fentanyl citrate raw materials and its injection by ion chro-matography. METHODS:The determination was performed on Thermo Dionex IonPacTM AS11-HC column with mobile phase con-sisted of potassium hydroxide (gradient elution) at the flow rate of 1.0 mL/min. The column temperature was 35 ℃,and sample size was 20 μL. The detector was suppressed conductivity detector. RESULTS:The linear range of citric acid were 0.1157-74.05 μg/mL(r=0.9995). The limit of quantitation was 0.1150 μg/mL,and the limit of detection was 0.0400 μg/mL;RSDs of preci-sion,stability and reproducibility tests were all lower than 2.0%;the average recoveries were 99.6%-101.5%(RSD=0.68%,n=9). CONCLUSIONS:The method is environmentally-friendly and simple with good accuracy and precision,and suitable for the contents determination of citric acid in fentanyl citrate raw materials and injection.