OBJECTIVE To investigate Staphylococcus aureus(SAU)and coagulase-negative Staphylococcus(CNS)with continuously isolated virulence gene and drug-resistant genes status.METHODS We collected 100 SAU strains and 27 CNS strains,virulence gene(pvl)and drug-resistant genes(mecA,aac(6')/aph(2″),aph(3')-Ⅲ,ant(4',4″),ermA/B/C,msrA,tetM and qacA/B)were detected by PCR.RESULTS The positive rates of pvl,mecA,aac(6')/aph(2″),aph(3')-Ⅲ,ant(4',4″),ermA/B/C,msrA,tetM and qacA/B in MRSA were 11.6%,100.0%,94.2%,69.2%,2.9%,85.5%,85.5% and 46.4%.The positive rates of pvl,mecA,aac(6')/aph(2″),aph(3')-Ⅲ,ant(4',4″),ermA/B/C,msrA,tetM and qacA/B in MSSA were 74.2%,0%,9.7%,3.2%,0%,51.6%,9.7% and 0%,respectively.CONCLUSIONS There are very high positive percentages of mecA,aac(6')/aph(2″),aph(3')-Ⅲ,ermA/B/C,msrA,tetM and qacA/B genes in MRSA,and very high positive percentages of pvl and ermA/B/C genes in MSSA.

OBJECTIVE To investigate the presence of ?-lactamase genes in pan-drug resistant Pseudomonas aeruginosa (PDRPA),and the redateness in PDRPA. METHODS The genes of 21 kinds of resistance were detected by polymerase chain reaction and phylogenetic analysis. RESULTS In 33 strains of PDRPA,the positive rates of blaTEM,blaOXA-10cluster,blaPER,blaGES,blaCARB,intⅠ1 and merA were 48.5%,45.5%,33.3%,21.2%,15.2%,78.8% and 69.7%,respectively. There were clone transmitted phenomena. CONCLUSIONS There are very high positive percentages of blaTEM,blaOXA-10cluster,blaPER,blaGES,blaCARB,intⅠ1 and merA genes in PDRPA. The PDRPA can induce clone transmitted hospital infection.

OBJECTIVE To investigate the genetic background and antibiotic resistance of continuously isolated P.aeruginosa strains in Shaoxing.METHODS Eighty six strains of P.aeruginosa were isolated from hospitalized patients,and drug-resistant genes,integrons and transposons were detected by PCR.RESULTS The positive rates of blaCARB,blaVIM,blaDHA,blaTEM,ant(2″)-Ⅰ,aac(6')-Ⅱ,aac(6')-Ⅰb and ant(3″)-Ⅰ were 30.2%,14.0%,3.5%,1.1%,27.9%,24.4%,15.1% and 4.7%.There were clone transmitted phenomenon.CONCLUSIONS There are very high positive percentages of blaCARB,blaVIM,ant(2″)-Ⅰ,aac(6')-Ⅱ,and aac(6')-Ⅰb genes in continuously isolated P.aeruginosa strains.P.aeruginosa can induce clone transmitted hospital infection and it has fulminant prevalence.

Objective:To explore the clinical regularities in acupuncture-moxibustion treatment of cancer pain by reviewing the relevant studies published between 1985 and 2017.Methods:Based on the Chinese Medicine Acupuncture-moxibustion Information Database,quantitative analysis,correlation analysis and Chi-square test were applied to analyze the commonly used acupoints,meridian affiliations and body region distributions,commonly used methods and acupoint correlations,treatment method correlations,the efficacy of acupuncture-moxibustion plus the three-step analgesic ladder for cancer pain,and indicators.Results:Zusanli (ST 36),Ashi point and Sanyinjiao (SP 6) ranked the top on the list of frequency;points from Bladder Meridian of Foot Taiyang and Stomach Meridian of Foot Yangming were often used;points from the lower limbs and back had high frequencies.The most commonly used treatment method was acupuncture-moxibustion plus medication.Acupuncture-moxibustion plus the three-step analgesic ladder showed certain advantage compared with the two methods used separately,and among the integrated methods,acupoint application plus the three-step analgesic ladder produced the most significant efficacy.It took (44.77±55.54) min for the analgesic effect to act and the effect lasted for (12.81±14.59) h.Numerical rating scale (NRS),visual analog scale (VAS) and Karnofsky performance status (KPS) scores all showed significant changes after interventions (all P＜0.01);there was no significant change in the score of quality of life (QOL) after interventions (P＞0.05).Conclusion:Zusanli (ST 36),Ashi point and Sanyinjiao (SP 6) are commonly selected in acupuncture-moxibustion treatment of cancer pain;acupuncture and acupoint application are often used;acupuncture-moxibustion plus the three-step analgesic ladder can boost the treatment efficacy.

Polydatin is a monocrystaline compound isolated from Polygonum cuspidatum Sieb. et Zucc. (Polygonaceae) with biological properties, such as anti-inflammation, anti-oxidative and nephroprotective effects. Increasing number of studies have demonstrated the protective effect of polydatin on renal ischemia reperfusion injury. However, the possible mechanisms of this protection are not fully elucidated. This study aimed to investigate the effect of polydatin on ischemia-reperfusion induced expression of toll-like receptor4 (TLR4) in rat renal tubular epithelia cells (NRK-52E), and analyze the mechanism of polydatin on TLR4 signal pathway. The cultured NRK-52E cells were incubated in three gas incubators for a period of 6 h at hypoxia and 24h at reoxygenation to simulate the ischemia-reperfusion injury in vitro. TLR4 mRNA level was analyzed by real-time-PCR, and the protein expression of TLR4 and NF-κB by Western blotting, while TNF-α and IL-1β proteins expressions were detected by ELISA. Polydatin downregulated I/R induced mRNA and protein expressions of TLR4, and decreased the protein expression of NF-κB, TNF-α and IL-1β. The TLR4 blocker partially antagonized the effect of I/R on NF-κB signaling, and such inhibitory effect was markedly enhanced by polydatin. In the present study, polydatin protects NRK-52E cells from I/R injury possibly by relieving the inflammatory response through regulation of TLR4/NF-κB signaling pathway.
Animals ; Cell Line ; Drugs, Chinese Herbal ; pharmacology ; Gene Expression ; drug effects ; Glucosides ; pharmacology ; Humans ; Rats ; Reperfusion Injury ; drug therapy ; genetics ; metabolism ; Stilbenes ; pharmacology ; Toll-Like Receptor 4 ; genetics ; metabolism

In our previous work, we found that trivalent dimethylarsinous acid (DMA(III)) have high affinity binding to cysteine residue 13 of rat hemoglobin. However, it is still unknown why arsenic intermediate metabolite DMA(III) has high binding affinity for Cysl3 but not for other cysteine residues 93, 140, 111 and 125. In order to better understand the molecular mechanism of DMA(III) with rat hemoglobin, we have done current study. So, SD rats were divided into control and arsenic-treated groups randomly. Arsenic species in lysate of red blood cells were analyzed by HPLC-ICP-MS, and then determined by a hybrid quadrupole TOF MS. In addition, trivalent DMA(III) binds to different cysteine residues in rat hemoglobin alpha and beta chains were also simulated by Molecular Docking. Only Cys13 in alpha chain is able to bind to DMA(III) from the experiment results. Cys13 of alpha chain in rat hemoglobin is a specific binding site for DMA(III), and we found that amino acids compose pockets structure and surround Cys13 (but not other cysteine residues), make DMA(III) much easy to bind cysteine 13. Taken together, the DMA(III) specific binding to Cys13 is related to spatial structure of Cys13.
Animals ; Arsenic ; metabolism ; Binding Sites ; Cacodylic Acid ; analogs & derivatives ; chemistry ; Chromatography, High Pressure Liquid ; Cysteine ; metabolism ; Hemoglobins ; metabolism ; Mass Spectrometry ; Peptide Fragments ; metabolism ; Rats

Female ; Humans ; Infant, Newborn ; Maple Syrup Urine Disease ; diagnosis ; therapy

Objective To evaluate the using of either 225 or 150 microgrammes of mifepristone combined with misoprostol for termination of second-trimester gestation(16～24 weeks).Methods 180 women requesting voluntary induced abortion during gestation 16～24 weeks were randomised to three groups,group 1:oral mifepris- tone 225rag,group 2:oral mifepristone 150mg,and group 3:injected 100rag rivanot by amniocentestis.The total suc- cess rate,once success rate,the interval of having-medicine to uterine-constraction,the volume of bleeding within 2 hours after labour and cervical laceration rate were observed.Results The once success rate of induced labour in group 1 was higher than that in group 2 and group 3(P

Objective To investigate the acute effect of dialysate calcium concentration on calcium balance and blood pressure(BP) of maintenance hemodialysis(MHD) patients with normal serum tCa,and to provide scien- tific basis for individualized calcium concentration dialysate formula.Methods For 4 weeks,dialysate with different calcium concentrations as DCa 1.25,DCa 1.5 and DCa 1.75 was used in 15 stable MHD patients.Arterial blood pressure was measured before and after each dialysis session,and every 30 minutes during hemodialysis session.Serum total calcium and ionized calcium were assessed before and after each dialysis session with different calcium concen- trations dialysate.Results With the DCa 1.2.5,BP,serum tCa and iCa decreased as compared with pre-dialysis val- ues(P

Objective To establish a new determination method for the measuring of alkaline phosphatase activity (ALP) with p-acetyl phenyl phosphace (PAP-PNa_2) as substrate.Methods With the help of Vital semiautomatic analyzer,researched a continuous-monitoring procedure and set up experimental parameters.Results When using this assay,the wavelength of PAP's absorption was 325 nm and the Km of ALP was 0.376 mmol/L.The molecular extinction coefficient of PAP at 340 nm was 23 390 L?mol~(-1)? cm~(-1) and the concentration of citrate buffer was 0.438 mol/L.During the process,we found that the optimum pH of enzyme was 10.4,and the concentration of substrate was 5.0 mmol/L.The time of linear reaction was 900 seconds,and the linear range was 0-1 110 U/L.Serum total ALP were 63.1-118.3 U/ L(male) and 52.5-89.0 U/L(female),based on results from 60 heath adults.Conclusions The method is practical in its repetition and convenience,saves time and is not liable to be affected by bilirubin in serum.It is especially suited to the use of automatic analyzers.