Objective To analyze the curative effect and toxicity of concurrent chemoradiotherapy and sequential chemoradiotherapy in non-small cell lung cancer patients.Methods 64 patients with unresectable stage Ⅲ non-small cell lung cancer in our hospital between May 2010 and Mar 2013 were randomly assigned into concurrent group and sequential group for this test.Concurrent group patients (32 cases) were given Cisplatin and Gemcitabine on the 1,4,7 week during radiotherapy.Sequential group patients accepted 3 cycles chemotherapy before radiotherapy.Results The response rate was 68.8％ in concurrent group,and 43.8％ in sequential group.Difference was significant between the response rates of the two groups (P ＜ 0.05).There was significant difference in haematological toxicity,which was 100％ in concurrent group and 65.6％ in sequential group (P ＜ 0.05).There was no significant difference in rates of radiation pneumonia and radiation esophagitis in the two groups (P ＞ 0.05) Conclusions Concurrent chemoradiotherapy has better curative effect than sequential chemoradiotherapy.Concurrent chemoradiotherapy is a safe and effective treatment for patients with unresectable stage Ⅲ non-small cell lung cancer.

Objective To investigate the effects of Tanshinone Ⅱ A (extracted from Chinese herb medicine Salvia miltiorrhiza Bge.) on ventricular arrhythmias of rabbit hearts induced by ischemia in order to illuminate its mechanism of anti-arrhythmia.Methods Thirty rabbits were randomly (random number)divided into normal group,ischemic group and Tanshinone Ⅱ A group.Model of wedge shaped mass of rabbit left ventricular myocardium with coronary perfusion was prepared,and then by using floating glassy microelectrode,the trans-mural ECG,QT interval,the trans-mural dispersion of re-polarization (TDR) and trans-membrane action potentials from both endocardium and epicardium were simultaneously and wholly recorded.The incidence of ventricular arrhythmia in myocardium was observed after ischemia for thirty min.Results Under the condition of acute ischemia,compared with normal group,the incidence of ventricular arrhythmia and TDR were significantly increased in ischemia group (P ＜ 0.01),while incidence of ventricular arrhythmia and TDR were significantly reduced in tanshinone ⅡA group compared with ischemia group (P ＜ 0.05).The incidences of ventricular arrhythmia in normal,ischemia and Tanshinone Ⅱ A groups were 0/10,9/10 and 2/10 respectively.Conclusions Tanshinone Ⅱ A prevents ventricular arrhythmia and reduces TDR significantly in ischemic rabbit hearts.

Objective To evaluate the characteristics and clinical suitability of the ArcCHECK diode array for volumetric-modulated arc therapy (VMAT) verification.Methods The intrinsic sensitivity,short and long term reproducibility,dose and dose rate dependence,dose per pulsed dependence,field sizes dependence and directional response of the diodes were measured.The results of the diodes were compared with the measurement results of an ionization chamber and calculated results of treatment planning system.Gamma index was used to analyze the dose difference between the calculation and measurement for random selected 211 verified VMAT plans.Results The ArcCHECK performed well for all tests except directional dependence,which varies from a minimum of-3.9％ (seen only when the beam was incident on the diode at 180°) to a maximum of 7.7％ (approximately at 255°).Average gamma analysis passing rates with 3 mm/3％ for 113 nasopharyngeal cancer,48 cervical cancer and 50 rectal cancer patients VMAT plans were 93.5％,95.7％ and 97.5％,respectively,statistical significance has been found between either two of the groups (t=-12.69-4.88,all P＜ 0.01).Conclusions With proposed calibration method,the ArcCHECK diode array is very suitable for VMAT pretreatment verification,the complexity of VMAT plan is the main factor affecting the passing rate.

The purpose of this study was to determine the changes of pathogens in hematological ward and susceptibility of patients received chemotherapy to antibiotics. The pathogens were taken from blood, urine and sputum of patients who accepted chemotherapy from years 2001 to 2005, then were isolated and identified. The susceptibility test was performed by disk diffusion method. The results showed that the total of 418 strains were detected. Gram-negative bacteria were the most common of nosocomial infection. Pseudomonas aeruginosa, Enterobacter cloacae, E. coli account for the most of Gram negative- bacteria infection and most resistant to broad-spectrum penicillin, Acinetobacter baumannii showed a trend of increase. The ratios of gram positive bacteria and fungi were increased slowly, mainly as Enterococcus and Candida. Enterococcus is the most common cause of Gram-positive bacterial infection. Vancomycin resistance did not occur. It is concluded that Gram-negative bacteria are main cause of nosocomial infection in patients with hematological malignancies. Gram positive bacteria and fungi had been more frequent. Strains resistant to antimicrobial agents increase.
Cross Infection ; epidemiology ; microbiology ; Drug Resistance, Bacterial ; Gram-Negative Bacteria ; drug effects ; isolation & purification ; Gram-Negative Bacterial Infections ; epidemiology ; microbiology ; Hematologic Diseases ; microbiology ; Hematologic Neoplasms ; microbiology ; Humans ; Microbial Sensitivity Tests

Objective To explore the plague epidemical trend of nearly a 10 years data in Qinghai province to provide basis for making the prevention and control measures. Method The regional distribution and time distribution of animal and human plague, monitoring and plague foci of survey data in Qinghai from 2001 to 2010 were analyzed with Excel software 2003. Results In Qinghai province, a total of 167 strains of Yersinia pestis were isolated from infected animals and insects in 10 years. Yersinia pestis was mainly distributed in Wulan,Delinha, Geermu, and Tianjun, along the Qinghai-Xizang railway. Human plague was occurred every year from 2001 to 2010 except 2002, 2007, 2008, and 2010. In the 10 years, there were 37 plague cases and 16 of these cases died, the mortality was 43.24％. The plague cases were mainly distributed in Nangqian, Qumalai, Chenduo,Zhiduo, Xinghai, Tongde, Tianjun, Wulan and Qilian. And these cases were found mostly in the period from May to October, especially in the period from August to October. Major clinical type of the plague cases was lung-type (62.16％,23/37). Conclusions The plague epidemic situation in Qinghai province is still severe, animal plague occurred year after year, and human plague outbreaks occasionally. Monitoring and early warning in the key areas should be strengthened, and the comprehensive measures of plague prevention and control should be carried out to reduce the incidence and prevalence of plague.

AIMTo explore the expression of ER and PR mRNAs in endometrium with endometriosis.

METHODSThe rat model of endometriosis was established, and the expression of ER, PR mRNAs in the endometrium was examined by reverse transcription-polymerase chain reaction (RT-PCR).

RESULTSThe expression of ER and PR mRNAs in ectopic endometrium was significantly lower than that in eutopic and normal endometrium (P < 0.01). But no difference was observed between eutopic and normal endometrium (P > 0.05). Ratio of ER/PR mRNA in ectopic endometrium was larger than that in eutopic and in normal endometrium (P < 0.01).

CONCLUSIONThe result illuminates that the increased ER plays a vital role in the onset of endometriosis.

Animals ; Endometriosis ; metabolism ; Endometrium ; metabolism ; Female ; RNA, Messenger ; genetics ; Rats ; Rats, Sprague-Dawley ; Receptors, Estrogen ; genetics ; metabolism ; Receptors, Progesterone ; genetics ; metabolism

OBJECTIVETo construct one lentiviral vector containing mouse SRY-related high mobility group-box gene 9 (SOX9) and transfect the murine bone mesenchymal stem cells (mBMSCs) in vitro and observe the expression of target gene.

METHODSRNA from the vectors containing mouse SOX9 gene were extracted and SOX9 genes were amplified by reverse transcription-Polymerase Chain Reaction (RT-PCR). The SOX9 genes were connected into lentiviral vectors pGC-FU. Then pGC-FU-SOX9 transduced into 293T cells to produce recombinant lentivirus called as Lenti-SOX9-EGFP. mBMSCs were transfected. The expression of target gene was detected by immunofluorescence, RT-PCR and Western Blot.

RESULTSLenti-SOX9-EGFP was recombined successfully and transduced efficiently into mBMSCs. The expression of SOX9 gene was confirmed by RT-PCR and Western Blot.

CONCLUSIONLentiviral vector of mouse SOX9 gene can transfect successfully into mBMSCs. Meanwhile, SOX9 gene may be expressed in mBMSCs. This will provide the target cells for the following study about SOX9 gene repairing cartilage injury.

Animals ; Female ; Gene Expression ; Genetic Therapy ; Genetic Vectors ; Lentivirus ; genetics ; Male ; Mesenchymal Stromal Cells ; metabolism ; Mice ; Osteoarthritis ; therapy ; Reverse Transcriptase Polymerase Chain Reaction ; SOX9 Transcription Factor ; genetics ; Transduction, Genetic ; Transfection

Abstract: Objective　To investigate the clustered regularly interspaced short palindromic repeats (CRISPR) genotypes and regional distribution of Yersinia pestis strains in the natural plague foci of Hainan Tibetan Autonomous Prefecture of Qinghai Province (referred to as "Hainan prefecture") and provide a scientific basis for plague prevention and control in this area. Methods　A total of 36 representative Yersinia pestis strains, which were isolated from different host animals and insect vectors from 1954 to 2009 in Hainan Prefecture, were selected as experimental subjects. The DNAs were extracted using the traditional sodium dodecyl sulfate decomposition and phenol-chloroform method. Three pairs of CRISPR primers (YPa, Ypb, YPc) were used for PCR amplification, sequencing and analysis of the DNA of the tested strains, respectively, as a means to identify the CRISPR genotypes of Yersinia pestis in Hainan Prefecture. Results　A total of 17 spacers were observed among 36 strains of Yersinia pestis, including 9 of YPa, 5 of YPb and 3 of YPc. All strains were divided into 5 CRISPR gene clusters (Cb2, Cb4 ', Ca7, Ca7 ', Ca35 ') and 6 genotypes (G1, G9, G22, G22-A1 ', G26-A1 ', G26-A1 'A4 -). The G26-a1 ' was the main genotype, which was distributed in Gonghe, Guide and Xinghai County, and the G22 is the second type, which was distributed in Gonghe and Guide County. Conclusions　The genetic polymorphism of CRISPR loci of Yersinia pestis strains in Hainan was high, and the regional distribution characteristics of Yersinia pestis strains with different genotypes were significant.

Abstract: Objective To investigate the current status of streptomycin resistance of Yersinia pestis caused by point mutations of rpsL gene in Qinghai, so as to provide theoretical basis for precise clinical medication and prevention of drug resistance of human plague outbreak in South area of Qinghai Province in the future. Methods A total of 104 representative strains of Yersinia pestis collected from plague patients, vector insects and intermediate hosts in South area of Qinghai Province from 1957 to 2009 were screened, isolated and cultured by Hiss agar plates. The DNA of representative Yersinia pestis was extracted by sodium dodecyl sulfate lysis and phenol-chloroform method. The primers forward primer and reverse primer and TaqMan-MGB probes probe1 [FAM] and probe2 [VIC] were designed for the rpsL gene of streptomycin resistance gene in China. Real-time PCR with TaqMan-MGB fluorescent probe was used to detect the mutations of rpsL gene in streptomycin resistance locus of 104 strains of Yersinia pestis in South area of Qinghai Province. Results The FAM test results of 104 strains in South area of Qinghai Province were positive, corresponding to the detection of rpsL (128 : A ), RFU peak >1 000,negative <200. VIC test results of all tested strains were negative, corresponding to the detection of rpsL (128:G), RFU peak <200, positive >1 000. That is, no strains with rpsL gene mutation related to streptomycin resistance were found in the 104 strains of Yersinia pestis in Qingnan Province. Conclusion This study provides basic data on the distribution of streptomycin resistance of Yersinia pestis in South area of Qinghai Province, and lays a foundation for preventing the occurrence of drug resistance and clinical treatment of Yersinia pestis in South area of Qinghai Province.

OBJECTIVETo evaluate the feasibility and safety of transperitoneal laparoscopic nephrectomy in live-donors.

METHODSTwo cases of live-donor underwent laparoscopic nephrectomy in May and August 2008 respectively and both were followed up.

RESULTIn two cases the operation time was 130, 10 min; blood loss was 50 ml; warm ischemic time was 30 s and 2 min; the length of artery was 4.0 cm and 3.5 cm; the length of vein was 3.0 cm. The grafted kidneys started to produce urine at 30 s and 10 s after blood supply. Renal function of donor returned to normal after two days. The donors were discharged at 7th day after the operation. Renal function of recipient was normal after 3 days.

CONCLUSIONTransperitoneal laparoscopic nephrectomy in live-donor is a safe and effective procedure, which provides kidney with satisfactory blood vessels and ureter for graft.

Female ; Humans ; Kidney Transplantation ; Laparoscopy ; Living Donors ; Male ; Middle Aged ; Nephrectomy ; methods ; Peritoneum ; surgery ; Tissue and Organ Harvesting