1.Treatment of small cell lung cancer in elderly patients
Yao XIAO ; Xiangying XU ; Songliu HU
Practical Oncology Journal 2016;30(5):463-467
Recently,the incidence rate of small cell lung cancer in elderly patients has been increasing . The mainly therapeutic approach of small cell lung cancer consists of radiotherapy ,chemotherapy and surgery ,with the treatment purpose of prolonging survival time and improving life quality .As the huge development of accurate radiotherapy technology occurred in the past a few years ,radiotherapy could play more and more important roles in the treatment with elderly patients .Yet,there is no unified standards of treatment for small cell lung cancer in eld-erly patients.Therefore,we give a review on the latest processes and research on the treatment of small cells lung cancer in elderly patients .
2.Mechanism of the Apoptosis of HepG2 Cells Induced by Rosmarinic Acid
Dan XU ; Weihong XIAO ; Zhimin HU
China Pharmacist 2017;20(3):426-428,437
Objective:To study the effect and underlying mechanism of rosmarinic acid in the apoptosis of HepG2 cells. Meth-ods:An MTT method was used to determine the inhibitory effect on the growth of HepG2 cells treated with rosmarinic acid for 48 hours. Flow cytometry was used to detect the cell apoptosis after treated with rosmarinic acid at different concentrations for 24 h and 48 h. Western Blotting was used to detect the expression of P53 and c-Myc protein after treated with rosmarinic acid for 48 h. Results:When HepG2 cells were treated with rosmarinic acid at the concentrations of 12. 50, 25. 00, 50. 00 and 100. 00 μg·ml-1 for 48 h, the cell growth was inhibited and the half-inhibitory concentration (IC50) was 43. 48μg·ml-1. By comparing HepG2 cells treated with rosma-rinic acid at different concentrations for 24 h and 48 h, rosmarinic acid had the effect on the early apoptosis of HepG2 cells after the 48-hour treatment. When treated with rosmarinic acid at the different concentrations for 48 h, the expression of c-Myc decreased with the concentration increase of rosmarinic acid, and the expression of P53 increased with the concentration increase of rosmarinic acid. Con-clusion:The inhibitory effect of rosmarinic acid on the proliferation of HepG2 cells is in a dose-dependent manner, and it can promote the apoptosis of HepG2 cells through the activation of P53 and the cleavage of proto-oncogene c-Myc protein.
3.Clinical Comparative Study on 1470nm Diode Laser Vaporization Prostatectomy and Bipolar Transurethral Plasmakinetic Prostatectomy Used in the Treatment of Benign Prostatic Hyperplasia
Jian XU ; Yunfei HU ; Xiao WANG
Journal of Medical Research 2017;46(4):123-127
Objective To compare the therapeutic effects of 1470nm diode laser vaporization prostatectomy and bipolar transurethral plasmakinetic prostatectomy (TUPKP) for treatment of benign prostatic hyperplasia (BPH).Methods From June 2015-February 2016 a total of 95 patients diagnosed with BPH were randomly divided into 2 group:52 patients were treated with TUPKP while 43 patients with 1470 diode laser.All patients were followed up with mean operative time,intra-operative blood loss,postoperative hospital stay,postoperative catheterization time,postoperative complications,international prostate symptom score (IPSS),score of life quality (QoL),maximum flow rate (Qmax),post-void residual (PVR) before and after surgery.Results Compared with data of preoperation,postoperative IPSS,QoL,Qmax,PVR in 6 months revealed significant improvement in both of two groups.IPSS of TUPKP group and 1470 group respectively dropped to 6.3 ± 2.6 and 6.7 ± 2.4.In TUPKP group,PVR reduced to 23.1 ± 20.9ml and in 1470 group decreased to 24.3 ± 19.9ml.While Qmax increased to 18.5 ± 3.1 ml/s and 18.7 ± 2.8ml/s respectively in TUPKP and 1470 group.In TUPKP group,operation time were 60.1 ± 14.9min,significantly less than that in 1470 group of 69.3 ± 12.9min (P < 0.05).Compared with catheterization time in 1470 group of 33.9 ± 9.4h,the time in TUPKP group of 73.9 ± 37.6h was shorter with significant difference (P < 0.05).While Curative effect of two groups of showed no significant difference (P > 0.05).Conclusion The clinical curative effect of two operation methods for patients with BPH showed no significant difference.1470 group had longer operation time,while TUPKP group had less intraoperative bleeding and postoperative recovery.
4.Application of EP10-A2 for conducting methodological evaluation in pepsinogen Ⅰ detection by GICA
Liang ZHAO ; Xu LU ; Hu XIAO ; Linlin XIAO
International Journal of Laboratory Medicine 2017;38(5):622-624
Objective To use the colloidal gold immunochromatography (GICA ) method to conduct the methodological prelimi-nary evaluation on pepsinogen Ⅰ (PGI) reagent kit .Methods The method provide by the Preliminary Evaluation of Clinical Quan-titative Experimental Methods :Approval Guide Second Edition (EP10-A2) formulated according to the Clinical Laboratory Stand-ards Institute (CLSI) was used to continuously detect the low ,moderate and high concentrations of serum for 5 d ,Then the related data were collected for analyzing the dispersion degree ,linearity ,offset ,precision and so on .Results The PGⅠ quality control ser-um (concentration 25 ,50 ,100 μg/L) was detected at low ,medium and high concentration levels ,the linear regression equation ob-tained by analysis was Y=0 .9939X+0 .7433 ,correlation coefficient (R2 )=0 .9992 ;the offsets were 0 .37 ,0 .77 ,0 .78 μg/L re-spectively ,total imprecision was 3 .04% ,1 .17% and 1 .08% respectively .Conclusion The GICA related technical indicators of PGⅠreagent kit reach the standards of EP10-A2 document ,the detection results are accurate with high sensitivity and good stability , and conform to the requirements of clinical applications .
5.The comparison of two methods of detecting pepsinogen
Lianying ZHANG ; Hu XIAO ; Xu LU ; Linlin XIAO
International Journal of Laboratory Medicine 2016;37(20):2810-2812
Objective To investigate colloidal gold immune chromatography (GICA ) and enzyme linked immunosorbent assay (ELISA) detection pepsinogen (PG) consistency of results ,so as to provide experimental evidence for the use of colloidal gold im‐munochromatography assay PG and briefly analysis of its clinical utility .Methods Totally 40 cases in our hospital digested samples and medical centers 60 healthy population sample in Endoscopy Center by endoscopy diagnosed with inflammation of the stomach disease ,respectively ,with colloidal gold immune chromatography and enzyme‐linked immunosorbent assay PG ,colloidal gold immu‐noassay chromatography method to be evaluated ,as the reference ELISA method .The results were compared to the method and bias analysis .Results GICA method with a correlation coefficient ELISA test results were greater than 0 .95 ,indicating a good correla‐tion between the two methods and there is no overall bias;sensitivity and specificity of the two methods were (0 .775 ,0 .85) and (0 .782 ,0 .823) .Conclusion Both GICA and ELISA can be used for screening or diagnosis of stomach illnesses .
7.Evaluation of Sensitivities and Specificities of SARS-CoV Detection by Real-time Quantitative Reverse Transcription-PCR Assays
Lili XU ; Zhihong HU ; Hualin WANG ; Xiao HAN ; Fei DENG
Virologica Sinica 2009;24(3):187-193
The etiological agent of severe acute respiratory syndrome (SARS) was identified as a new coronavirus, termed SARS-CoV. Establishment of an efficient and sensitive diagnostic system of SARS-CoV genetic materials is crucial for SARS control. In this study, we quantified SARS-CoV mRNAs in both infected cell culture lysate and in supernatant by using Real-time quantitative revere transcription-PCR based on EvaGreen鈩?dye and Taqman-MGB probes. For extensive evaluation of sensitivities and specificities, 13 pairs of primers and 4 probes were designed based on different genes of SARS-CoV. Glyceraldehydes-3-phosphate dehydrogenase (GAPDH) was selected as the internal control gene. Results showed that S-gene-specific PCR was the most sensitive for detection, but because of its sequence variability in the different viral strains, primers and a probe based on the N gene were suitable substitutions. Meanwhile, we found the mRNA concentrations in cell culture lysates were much higher than in cell supernatant and facilited more sensitive detection of the SARS-CoV.
8.Determination of tetrandrine and fangchinoline in Qingshenjianfei Tablets by RP-HPLC
Xu-Feng SONG ; Jing YU ; Xiao-Wei HU ;
Chinese Traditional Patent Medicine 1992;0(04):-
AIM: To determine the contents of tetrandrine and fangchinoline in Qingshenjianfei Tablets by RP-HPLC. METHODS:In this method Zorbax C 18 column was used, and methanol—0.3%diethylamine (75∶25) as a mobile phase , the detection wavelength was at 242 nm. RESULTS:The recovery of tetrandrine was 103.65% and RSD was 1.59% .The recovery of fangchinoline was 97.11% and RSD was 1.91% (n=6). CONCLUSION: This method is simple,quick,reproducible and can be used for the quantitative analysis。
9.Prognostic factors for bloodstream infection in adults
Xu-Hong DING ; Su-Ping HU ; Xiao-Jun WU ;
Chinese Journal of General Practitioners 2005;0(10):-
Objective To investigate prognostic factors for bloodstream infection in adult patients. Methods Clinical data of 131 adult patients with positive blood cultures during January 2002 to December 2003 in the Hospital were collected and 91 cases of them were retrospectively analyzed to understand their pathogen species and prognostic factors for it.Results Blood samples from 91 patients were cultured positive,53 cases(58.2%)with gram-negative bacteria mainly including Escherichia coli,Salmonella spp. and Klebsiella pneumoniae,28(30.8%)with gram-positive bacteria,mainly including Staphylococcus aureus and coagnlase-negative Staphylococci,eight(8.8%)with fungi and two(2.2%)with multiple infections.Case fatality ratio in this group of patients with septicemia was 30.8% during their hospitalization,and that in those with Pseudomonas aeruginosa,Staphylococcus aureus,Stenotrophomonas maltophilia and E.coli with extended-spectrum beta-lactamase was over 50%.Case fatality ratio was associated with severity of sepsis(OR=1.15)and inappropriately initial empirical treatment with antibiotics (OR=6.77).Conclusions Pathogen causing bloodstream infection in adults were mainly gram-negative bacteria and severity of infection and inappropriate initial antibiotics treatment could increase their fatality.
10.Development and Design of Hospital Physical Examination System Based on.NET
Aiqin LI ; Minlian CHEN ; Xiao XU ; Waiguang HU
Journal of Medical Informatics 2015;(6):22-26
〔Abstract〕 The paper overviews the development status of physical examination system, designs and constructs C/S based distributed students physical examination system, introduces design priciples, system architecture and main function models.The design and development of this system could resolve the data sharing problem among the students and their parents, schools and hospitals, it has practical significance.