Objective To compare the humoral immunity features of acute glomerulonephritis and nephritic syndrome(NS) in children for earlier differential diagnosis and rational administration.Methods Nephelometry was used to determinate the serum level of immunoglobulin(Ig)G,IgA,IgM,C3,C4 in children by England MININEPH machine and correlated reagent. The serum level of IgE was determined by IgE enzyme linked immunosorbent assay(ELISA),assay ELISA kit of America E&ELABSINC company. Immunoturbidimetry and westergren method were used to detect anti-streptolysin O(ASO) and erythrocyte sedimentation rate(ESR),respectively.Results There were significant diffe-rence features of humoral immunity between acute glomerulonephritis and NS in children.IgG,IgA,IgE,C3,C4 had significant difference between acute glomerulonephritis children and healthy children(Pa

Objective To investigate the effects of CO_2 pneumoperitoneum on the expression of focal adhesion kinase (FAK) of gastric cancer MKN-45 cells. Methods CO_2 pneumoperitoneum with different pressures was simulated in vitro, and the gastric cancer MKN-45 cells were divided into test and control groups. In the test group, gastric cancer MKN-45 cells were cultured in CO_2 pneumoperitoneum with different pressures [5, 10 or 15 mm Hg (1 mm Hg =0.133 kPa)] for 4 hours. The condition of the cells exposed to CO_2 pneumoperitoneum with a pressure of 15 mm Hg was observed at 0.5, 2 and 4 hours. Gastric cancer MKN-45 cells in control group were cultured at normal atmospheric pressure. The expression of FAK and phosphorylated FAK (FAK Tyr397) of each group was detected by Western blot. Multiple-group analysis was done by one-way ANOVA, and intergroup comparison was done by LSD test. Results In CO_2 pneumoperitoneum with pressures of 5, 10, 15 mm Hg, the expression of FAK was 2.14±0.17, 2.07±0.21 and 2.52±0.26, respectively, and the expression of FAK Tyr397 was 1.82±0.28, 1.93±0.52 and 3.71±0.37, respectively. The expression of FAK and FAK Tyr397 in the control group was 2.43±0.46 and 1.71±0.23, respectively. We found significant differences between the 2 groups (F = 2.171, 26.951, P < 0.01). After gastric cancer MKN-45 cells being treated for 0.5, 2 and 4 hours in CO_2 pneumoperitoneum with a pressure of 15 mm Hg, the expression of FAK Tyr397 was 3.41±0.44, 4.12±0.56 and 5.24±0.41 respectively, which is also significantly different (F =116.119, P < 0.01). The expression of FAK Tyr397 was back to 0.72±0.16 1 hour after the release of CO_2. Conclusions CO_2 pneumoperitoneum with different pressures can not promote the expression of FAK in gastric cancer MKN-45 cells which had been cultured for 4 hours, but can activate FAK through promoting its phosphorylation. The degree of FAK phosphorylation increases with pressure and time, and the activity of FAK decreases to pretreatment level rapidly once pressure is released.

In this study, microcalorimetry was adopted to establish a novel method for detecting the hemagglutination process of Radix Isatidis (Banlangen in Chinese, BLG), and to evaluate the hemagglutination activity diversity of BLG from various habitats. The hemagglutination biothermokinetics curves of positive reagent (phytohemagglutinin, PHA) and 8 batches BLG from different regions of the hemagglutination with 20% rabbit erythrocyte were recorded by microcalorimetry, then biothermokinetics parameters were abstracted, the hemagglutination utility of samples were calculated and analyzed by principal component analysis (PCA) and cluster analysis (CA), meanwhile the results were authenticated by micro-plate agglutination. It showed that the hemagglutination was an exothermic reaction, the reaction rate constant (k: 0.039-73.6 min(-1)), maximum reaction power (Pmax: -1 140.2 - 988.2 microW) and reaction enthalpy (Hi: -529.9 - 717.9 microJ) had good linear correlation with BLG extraction concentration (0.2-1.0 g mL(-1), r > 0.97), and PCA showed Pmax (531-1 335 microW) and Ht (585.2-989.2 microJ) could represent the hemagglutination activity diversity of BLG samples, just confirming with the results of micro-plate agglutination (the agglutination dilution was 3-11 respectively). According to the hemagglutination utility, the BLG samples from Good Agriculture Practice (GAP) regions, main producing area and general regions could be clustered correctly; meanwhile, the biothermokinetics curves with perfect distinctive fingerprint and specificity could give out more information for the quality control and evaluation for BLG. In conclusion, the microcalorimetry method established for detecting the hemagglutination activity of BLG samples on rabbit erythrocyte is sensitive and reliable, and could be adopted as an effective technique in detection aggulatination precisely, quantitatively and consecutively; and provide a novel approach for examining and evaluating quality for Chinese herbal medicine with aggulatinative activity such as BLG.

[Objective] To investigate the expression of NF-κB and IL-lra in gastric cancer, and to explore their correlation with the clinicopathological parameters and prognosis of gastric cancer (GC). [Methods] Expression of NF-κB and IL-1ra was detected by immunohistochemistry in tissue microarry of 359 cases of GC. [Results] The expression rates of NF-κB in the patients with metastasis of lymph node, TNM Ⅲ-Ⅳ stage, and poorly differentiated of histology were 80.2%, 80.0%, and 79.2%, respectively. The expression rates of IL-1ra in the patients with tumor size ≤3 cm, early stage, non-metastasis of lymph node, and TNM Ⅰ-Ⅱ stage were 61.7%, 75.0%, 66.4%, and 61.9%, respectively. The 5-year survival rate of the cases with non-expressed NF-κB was statistically higher than that of the cases with expressed NF-κB(P=0.036). The 5-year survival rate of the patients with negative expression of NF-κB and positive expression of IL-1ra was statistically higher than the others (P=0.021). [Conclusions] NF-κB is the adverse predictors of prognosis of gastric cancer. IL-1ra maybe play a protective role in early gastric cancer stage, but it is necessary to study deeply and get more evidences.

The extracting technology of salidroside, tyrosol, crenulatin and gallic acid from Rhodiolae Crenulatae Radix et Rhizoma was optimized. With extraction rate of salidroside, tyrosol, crenulatin and gallic acid as indexes, orthogonal test was used to evaluate effect of 4 factors on extracting technology, including concentration of solvent, the dosage of solvent, duration of extraction, and frequency of extraction. The results showed that, the best extracting technology was to extract in 70% alcohol with 8 times the weight of herbal medicine for 2 times, with 3 hours once. High extraction rate of salidroside, tyrosol, crenulatin and gallic acid were obtained with the present technology. The extracting technology was stable and feasible with high extraction rate of four compounds from Rhodiolae Crenulatae Radix et Rhizoma, it was suitable for industrial production.
Chemical Fractionation ; methods ; Chemistry, Pharmaceutical ; methods ; Coumarins ; isolation & purification ; Drugs, Chinese Herbal ; isolation & purification ; Gallic Acid ; isolation & purification ; Glucosides ; isolation & purification ; Phenols ; isolation & purification ; Phenylethyl Alcohol ; analogs & derivatives ; isolation & purification ; Rhizome ; chemistry ; Rhodiola ; chemistry

Air Pollutants, Occupational ; adverse effects ; analysis ; Dust ; analysis ; Environmental Monitoring ; instrumentation ; methods ; Humans ; Industry ; Inhalation Exposure ; statistics & numerical data ; Maximum Allowable Concentration ; Occupational Exposure ; statistics & numerical data ; Quartz

Heme oxygenase-1 (HO-1) is a cellular stress protein, and its expression plays an important regulatory role in a lot of physiological and pathological processes. Although the expression of HO-1 in most tissues of body is low, a number of clinical and pharmacological experiments have proved that many compounds can induce HO-1 expression. The increase of HO-1 expression is the result of regulating different signaling pathways and transcription factors, and this induction of HO-1 is suggested to be partially therapeutic efficacy of these compounds. This article summarizes some kinds of compounds in this field of research at home and abroad over the last 10 years, and provides a brief analysis of the mechanism.
Animals ; Antineoplastic Agents ; pharmacology ; Antioxidants ; pharmacology ; Coumarins ; pharmacology ; Drugs, Chinese Herbal ; pharmacology ; Enzyme Induction ; drug effects ; Gene Expression Regulation, Enzymologic ; Heme Oxygenase-1 ; genetics ; metabolism ; Humans ; Lovastatin ; pharmacology ; Nitric Oxide ; pharmacology ; Peptide Hormones ; pharmacology ; Probucol ; pharmacology ; Signal Transduction ; Transcription Factors ; metabolism

Objective To genotype Candida strains by random amplified polymorphic DNA(RAPD)technique,and to analyse the analogy of different Candida strains based on similarity coefficient.Methods Candida strains were isolated from vaginal secretion taken from patients with vulvovaginal can-didiasis by Sabouraud' s dextrose agar,C.albicans was differentiated from non-C.albicans strains by germ tube test,chlamydospore test and CHROMagar-Candida,and further identified by API20c Aux test Kits.The genomic DNA of45Candida isolates,including Candida albicans,Candida glabrata,Candida krusei,Candida parapsilosis and Candida tropicalis were amplified by RAPD,and DNA polymorphisms of inter-species and intraspecies were evaluated by using the DNA pattern-clustering of5primers.Results Thirty strains of C.albicans could be classified into7groups,and further divided into19subgroups,while15strains of non-C.albicans could be identified to species level.C.albicans isolates were related to each other with the similarity coefficients of more than90%,while different Candida species were connected to each other with the similarity coefficients of80%~90%.Conclusion C.albicans,which is the predominant pathogen of vulvovaginal candidiasis,could be classified into different genotypes by use of RAPD method.

Objective To summarize the clinical characters, diagnostic and therapeutic strategy of the cured patient with human H5N1 avian influenza pneumonia in mainland of China,and to provide effective experiences for the physicians to diagnose human avian influenza infection.Methods The clinical data of the cured patient with H5N1 avian influenza infection in China was analyzed.Results The patient was treated with short-term symmetrel and ribavirin for antiviral therapy companied with the lowdosage and long-term(4 weeks) glucocorticoid therapy.The CPAP assistant ventilation was used and the airway was kept unobstructed.The antibiotic was used to prevent and control the followed infection.The supportive treatment was applied to protect the organ′s function of the patient.The pathogenetic condition of the patient became better with the hemogram risen and the lungs pathological changes absorbed gradually.The chest CT reexamined at the 7th day of the hospitalized-term suggested that the left lung fibrosis started to be absorbed and it was obviously absorbed at the 16th day.The breath function and all the internal organs functions became better.The patient convalesced and left hospital at the 46th day.Conclusion In the human avian influenza infection,the pathogenetic condition may progress quickly after the pneumonia appears.The lung injury and lung fibrosis as well as the multi-organs dysfunction were emerged in the patient rapidly.The progression of disease can be controlled and the prognosis can be improved by the prompt and correct treatment.

Objective To investigate the nasal colonization of Staphylococcus (S.) aureus strains among medical university students in Shenyang and to study the molecular epidemiological characteristics of methicillin resistant S. aureus (MRSA) strains. Methods Sterilized nasal swabs were used to collect nasal bacteria from both nares of the students. Nasal specimens were further identified as S. aureus strains, sensitive or resistant to methicillin through a series of tests. Molecular related methods including staphylococcal cassette chromosome mec (SCCmec) typing, pulsed- field gel electrophoresis (PFGE) , coagulase isotyping and minimum inhibitory concentration (MIC) determination etc. were used to characterize the isolates. Prevalence of the panton-valentine leukocidin (pvl) genes (lukS and F-PV) among the isolates was also assessed. Results Staphylococci were found in 488 specimens from 977 participants through the surveillance program, conducted in 2009. Of the 488 specimens being tested, 364 were identified as coagulase-negative staphylococci (CoNS) and 124 as S. aureus. MRSA strain among the S. aureus isolates was accounted for 3.4%. In the surveillance program conducted in 2010, staphylococci grew in 310 specimens fiom 657 participants. Of the 310 specimens tested, 195 were identified as CoNS and 115 as S. aureus. The percentage of MRSA strains among the S. aureus isolates was 7.7%. In total, 239 students carried S.aureus, and the percentage of MRSA carriers among the total specimens tested in this study was 5.1%.Most of the MRSA strains could be classified into one of the five types of SCCmec elements. Type Ⅳ a SCCmec strains were most frequent seen overall (10 isolates). A total of 11 pulsotypes were identified among the MRSA strains and were classified into 7 major groups (A to G) by the mutual correlations of their banding patterns. Ten MRSA strains were identified as pvl positive strains. Conclusion An MRSA clone (Ⅳ a SCCmec pulsotype A) carrying pvl toxin gene was found to be prevalent in the nares of the healthy university students.