OBJECTIVE: To observe the effects of Quyu Jiedu Granule, a compound traditional Chinese herbal medicine for removing blood stasis and expelling superficial evils, on the quality of oocytes and the expressions of tumor necrosis factor-alpha (TNF-alpha)and interleukin-6 (IL-6) mRNAs in ovarian granulosa cells of endometriosis (EM) rats. METHODS: Forty EM rats were randomly divided into two groups: experimental group and control group. There were 20 EM rats in each group. The uteri of another 20 SD rats were drawn in sham-operated group. The number and percentage of high quality oocytes and the levels of TNF-alpha and IL-6 mRNA expressions in the granulosa cells of EM rats were detected by using reverse transcription-polymerase chain reaction. RESULTS: The number and percentage of high quality oocytes in the experimental group were significantly higher than those in the control group (P<0.05), and the levels of TNF-alpha and IL-6 mRNAs in granulose cells in the experimental group were significantly lower than those in the control group (P<0.05). CONCLUSION: The increase of the TNF-alpha and IL-6 mRNA expressions in ovarian granulose cells of EM rats leads to the decrease of the oocyte quality. The mechanism of Quyu Jiedu Granule in improving the quality of oocytes may be related to the decrease of TNF-alpha and IL-6 mRNA expressions in ovarian granulosa cells.

Objective To evaluate and improve the geometrical accuracy of the magnetic resonance imaging used for gamma knife radiosurgery localization. Methods Four common MRI scan programs were used in this study. The images were transferred to the Gamma Plan treatment planning system.Deviations between stereotactic coordinates based on MR images and real geometrical positions given by the construction of the phantom insert were evaluated for each study.The deviations were further investigated as a function of the spatial position of measured points in the investigated volume.Results The geometrical coordinate errors for axial and coronal images of the selected scan programs were all less than 1 mm.Optimal imaging procedure in terms of geometrical accuracy was observed using spin echo T1 and 3D FSPGR MRI sequences in the unit.Statistically significant differences were found in axial images amongSE T1,FSE T2,FRFSE Pd,FSPGR 3D sequences (F=1497.51,1873.63,2.87,3.00,P ＜0.05).The error increased along with the increase of the distance between node point and centricity.Conclusions The geometrical coordinate errors is related with the imaging program in M(il)l. Proper imaging programs and parameters should be selected according to the imageology character of patients' lesions when the radiosurgery is performed.

Objective To analyse the clinical effects on colon cancer with acute intestinal obstruction.Methods 56 patients with acute intestinal obstruction caused by colon cancer were studied retrospectively.The experience of diagnosis was summarized.Results 47 patients with acute intestinal obstruction caused by colon cancer received Stage Ⅰ tumor resection and the other 9 patients received different stages.54 patients healed (96.4％) and 1perioperative deaths (1.8 ％).Postoperative complications occurred in 18 cases (32.1％) including incision infection,intraperitoneal infection and intestinal fistula.Conclusion Stage Ⅰ tumor resection is feasible and safe surgical procedures for acute intestinal obstruction caused by colon cancer.

The recent investigations have demonstrated that epigenetic such as DNA methylation and histone modification was closely associated with cell growth and malignant tumors, and epigenetic modification was responsible for an important cause of oncogenesis. However, for the recent years some observations have been also shown that the development of tumorigenesis was attributed to transformation expression in microRNA. The latest investigations have revealed that epigenetic was involved in modulation of microRNA expression, on the contrary some kinds of microRNAs could also control epigenetic, moreover, the reciprocal modulation between microRNA and epigenetic could regulate gene expression and induce tumorigenesis. At the same time the data likewise displayed that epigenetic adjusted microRNA expression principally in a way of DNA methylation or histone modification, nevertheless microRNA regulated epigenetic by way of methyltransferases expression, DNA methylation maintenance and histone modification. With regard to the reciprocal modulation between microRNA and epigenetic, a comprehensive and systemic review of reciprocal relationship in modulation of cell growth and oncogenesis was gived.

We conducted the detection the Francisella spp.nucle acid from Hyalomma asiaticum asiaticum that main distribution is on railway line area from China-Kazakhstan border.The free-living ticks were collected and then identified by morphological and molecular methods.After species identification,they were detected by PCR targeting 16S rRNA and sdhA of Francisella spp.The amplified products were sequenced and the sequences was analyzed by using the Blast.A phylogenetic tree was constructed using MEGA 6 software.A total of 243 fleas were identified as H.asiaticum asiaticum.Only 35 samples were detected for Francisella spp.positive and the positive rate was 14.4％.Sequence analysis showed that two different sequences (seql and seq2) and all belong to Francisella-like endosymbionts (FLEs).Phylogenetic analyses showed that two FLEs were belong to the same cladd.This is first detection of FLEs nucleic acid from H.asiaticum Railway line area of China-Kazakhstan border.

Objective To explore the role of Bladderscan in intermittent catheterization in patients with neurogenic bladder. Methods The data from 384 pairs of bladder volume measured with Bladderscan and catheterization methods respectively in 20 patients with neurogenic bladder were statistically analysed. Results The bladder volume were (405.7±119.3) ml and (371.4±122.7) ml from Bladderscan and catheterization respectively(P<0.01). A significant correlation between the two groups of data was demonstrated(r=0.91,P<0.01). Cumulative percentage of the difference between-50 ml and 50 ml was 75.5%. Conclusion Bladderscan may play an important role in the guide for intermittent catheterization in patients with neurogenic bladder.

ObjectiveTo observe the effects of intravesical electric stimulation (IVES) on bladder sensation of neurogenic bladder.Methods28 patients with neurogenic bladder was evaluated, which all underwent intravesical bladder stimulation. Their bladder sensation were analyzed before and after the treatment.Results57.1% of the patients increased bladder sensation after treatment, 32.1% appeared the first sensation and urge sensation after treatment, 42.9% remained stable.ConclusionIntravesical bladder stimulation is effective to improve bladder sensation in a majority of the patients with neurogenic bladder.

ObjectiveTo study the videourodynamic characteristics in spina bifida patients and to discuss the urodynamic risk factors causing the upper urinary tract deterioration.Methods33 cases with spina bifida were evaluated with non-complete synchronized videourodynamic test.Filling-phase function of bladder was evaluated with bladder sensation,detrusor activity,compliance,relative safe capacity,detrusor leak point pressure and presence of vesicoureteral reflux;voiding phase function was evaluated with detrusor pressure,the synergy between detrusor and external sphincter,the pressure-flow study.Patients were classified into upper urinary tract damage group and non-damage group according to the imaging and renal function test.The urodynamic parameters between the two groups were compared statistically.Results17 cases were found upper urinary tract damage(51%)in which 11 with vesicoureteral reflux and 6 was non-reflux hydronephrosis.Bladder compliance and relative safe capacity were significantly different between the two groups.ConclusionSpina bifida patients complicate a high incidence of upper urinary damage,especially vesicoureteral reflux.Low compliance and small relative safe capacity may be the major urodynamic risk factors causing upper urinary tract damage.

Objective To investigate the distribution and drug resistance of pathogens in intensive care unit (ICU) so as to provide scientific basis for antibiotic adoption and the prevention and control of nosocomial infections. Methods The various specimens collected from the patients admitted into ICU in the First People's Hospital of Shunde Affiliated to the South Medical University from January 2007 to December 2014 were used to isolate the pathogens that might cause nosocomial infections and retrospectively analyze their clinical distribution and drug resistance. Kirby-Bauer paper diffusion and minimal inhibitory concentration (MIC) methods were applied to test the drug sensitivity, and according to National Committee for Clinical Laboratory Standards/Clinical and Laboratory Standards Institute (NCCLS/CLSI) standard, the results were identified.Results The sputum was the major specimen source in ICU, accounting for 68.8%, followed by urine (12.4%) and blood (6.8%). All together 557 pathogens in ICU causing nosocomial infections were isolated of which there were 377 gram-negative (G-) bacilli (67.7%), 103 gram-positive (G+) cocci (18.5%), and 77 fungi (13.8%). Among G- bacilli, the top three wereAcinetobacter baumannii (34.5%), Klebsiella pneumonia (17.8%), andPseudomonas aeruginosa (13.0%). Beside carbapenem, the drug resistance rates of Acinetobacterbaumannii to other antibiotics were more than 40%. The main G+ coccus causing nosocomial infection wasSaphylococcus aureus (36.9%) in ICU. The drug resistance rates ofSaphylococcus aureus to penicillin, gentamicin and erythromycin were higher than 50%. In 77 fungus strains,Candida albicans was ranked the first, accounting for 41.6%.Conclusion The main infection site in ICU is primarily respiratory tract, the G- bacilli are the predominate pathogens, and the drug resistance to antibiotics found in this report is serious, so clinically, the antibiotics should be properly used to avoid the occurrence of pathogenic strain with drug tolerance.

Carbonyl reductases catalyze carbonyl compounds to chiral alcohols that are important building blocks in fine chemical industry. To study carbonyl reductase from Pichia pastoris GS115 (ppcr), we discovered a new gene (ppcr) encoding an NADPH-dependent carbonyl reductase by genomic data mining. It was amplified by PCR from the genomic DNA, and expressed in Escherichia coli BL21 (DE3). The recombinant protein was purified to homogeneity. The optimum temperature was 37 degrees C and the optimum pH of PPCR was 6.0. PPCR was stable below 45 degrees C. The Km and k(cat) value of the enzyme for ethyl 3-methyl-2-oxobutanoate were 9.48 mmol/L and 0.12 s, respectively. The enzyme had broad substrate specificity and high enantioselectivity. It catalyzed the reduction of aldehydes, a-ketoesters, beta-ketoesters and aryl ketones to give the corresponding alcohols with >97% ee with only a few exceptions, showing its application potential in the synthesis of chiral alcohols.
Alcohol Oxidoreductases ; biosynthesis ; chemistry ; genetics ; Amino Acid Sequence ; Biotechnology ; methods ; Cloning, Molecular ; Escherichia coli ; genetics ; metabolism ; Molecular Sequence Data ; Pichia ; enzymology ; Recombinant Proteins ; biosynthesis ; chemistry ; genetics ; Stereoisomerism ; Substrate Specificity ; Temperature