Objective To analysis the constituents of urinary stones in southeast Chongqing district,and provide the percep-tion and treatment of urinary stones.Methods Retrospective analysis of 1 628 random urinary stones samples in southeast Chongqing district from 2008 to 2014.The chemical constituents of stones were analysis with the clinical data.Results Urinary stones were more often found in those 30 to 70 years old,especially in males.The upper system stones were frequently founded.The percentage of mixed stones and pure stones were similar,The constituents of stones were similar to male and female,the most com-mon component of the urinary stones are calcium oxalate,which were found in 82.9% of the stones,infection stones were found 1 9.2%,but only found in renal and ureteral stones,and also increase gradually.The most common component of urinary stones in Qianjiang and Pengshui district were calcium oxalate,the infection stones were frequently found in Youyang and Xiushan district. Conclusion Chemical composition analysis of urinary stones is simple,quick and accurate,it is very important in providing infor-mation to the etiology,treatment and prevention of urinary stones.

Objective To evaluate the change of left ventricular diastolic function and investigate the relation between left ventricular diastolic function and disease activity in rheumatoid arthritis (RA) without clinical manifestations of heart diseases. Methods Seventy consecutive active RA in-patients without clinical manifestations of heart disease were enrolled, while the control group was recruited from outpatient health physical check-up center and consisted of 60 age- and sex-matched healthy subjects. Cardiac related parame-ters were determined by echocardiography and the correlation between left ventricular diastolic function and the disease activity indexes were evaluated. Chi-square test, t test, Pearson or Spearman′s correlation test and Stepwise backward linear regression analysis were used for statistical analysis. Results RA patients had lower mitral inflow E/A ratio (1.2±0.4, 1.5±0.4, P<0.01), higher E/Em ratio (9.6±3.7, 7.8±2.0, P<0.01), longer isovolumetric relaxation time(IVRT)[(64±16) ms,(58±16) ms, P<0.05] than control group. Whilst, RA patients had higher pulmonary venous inflow A wave velocity-time integral (ArVTI) and A wave duration (DAr)[3.2±0.7,(2.8±0.6) cm; 117±11,(102±9) ms, P<0.05]. Moreover, the E/Em was positively corre-lated with C-reactive protein(CRP)(r=0.581, P<0.01), DAS28(r=0.456, P<0.01). Anti-CCP level was also associated with Em and early diastolic pulmonary venous inflow peak velocity(PVD)(r=-0.359, P<0.05;r=-0.305, P<0.05). In addition, multivariate analysis also revealed that there was linear regression relation-ship between E/Em and CRP, DAS28(t=3.266, P=0.002; t=2.949, P=0.005). Conclusion The study has revealed that left ventricular diastolic function is impaired in RA patients and the left ventricular diastolic function parameters is associated with the disease activity indexes. These results suggest that the decline of left ventricular diastolic function is associated with the inflammation activity in RA patients without clinical manifestations of heart disease.

This study was aimed to establish a quality evaluation method, quantitative analysis of multi-components with a single-marker (QAMS) to determine the contents of five saponins in Yao-Bi-Tong (YBT) capsules. Ginseno-side Rg1 was used as the internal standard; the relative correction factor (RCF) of notoginsenoside R1, ginsenoside Re, ginsenoside Rb1 and ginsenoside Rd were calculated and evaluated. The contents of 5 saponins were determined by the external standard method and QAMS, respectively. Rationality, feasibility and repeatability of the QAMS method were verified by comparing the results obtained from two different methods. The results showed that RCFs of notoginsenoside R1, ginsenoside Re and ginsenoside Rb1 to ginsenoside Rg1 against YBT capsules were 0.999, 1.228, 0.990 and 1.094, respectively, indicating good reproducibility. These results of two methods had no significant dif-ference. It was concluded that the QAMS method can be accurately, rapidly and reasonably used as a new quality assessment model for ginsenosides in YBT capsules.

The technology of electronic chromoendoscopy consists of narrow band imaging (NBI) and fuji intelligent chromo endoscopy (FICE). The two skills help distinguish between normal mucous membrane and focal zone and raise the detecting rate between the abnormal proliferation and early cancer. Therefore, the exploring research for type selection index of the two technologies and systems will be beneficial to the choice of the highest cost-effective endoscopy system and to the avoidance of wasting resources. By comparing all the indexes, and with purpose of clinical usage, NBI system has advantage over the FICE system. But with purpose for scientific research, the FICE system will be the better choice.
Capsule Endoscopy ; instrumentation ; Color ; Equipment Design ; Gastric Mucosa ; pathology ; Humans ; Image Enhancement ; methods ; Intestinal Mucosa ; pathology ; Intestinal Neoplasms ; diagnosis ; pathology ; Stomach Neoplasms ; diagnosis ; pathology

Objective:To investigate the therapeutic mechanism of high-frequency repetitive transcranial magnetic stimulation (rTMS) in treating mild amnestic cognitive impairment (aMCI).Methods:Twenty-five patients with aMCI were randomly divided into an observation group of 13 and a control group of 12. The observation group was given 10-Hz rTMS over the left dorsolateral prefrontal cortex at 80% of the motor threshold-400 pulses a day, 5 times a week for 4 consecutive weeks. The control group received sham stimulation on the same schedule. Before and after the experiment, both groups were evaluated using the Montreal cognitive assessment (MoCA) and received fMRI scans.Results:After the intervention, the average MoCA score of the observation group had improved significantly more compared with that of the control group and compared with before the intervention. According to the fMRI results, regional homogeneity in the right middle frontal gyrus of the observation group had increased significantly, while that of the control group both there and in the left precuneus had decreased significantly.Conclusions:High-frequency rTMS can effectively improve the cognitive function of patients with aMCI and synchronize neuron activity in cognition-related brain regions.

Objective:The relative expression of lncRNA NPIPA9 in prostate cancer tissues was analyzed, and the relative expression of miR-210-3p and its effect on the growth and migration of prostate cancer cells were detected by overexpressing lncRNA NPIPA9.Methods:The relative expression of lncRNA NPIPA9 in prostate cancer tissues was analyzed by Oncomine database. Real-time quantitative polymerase chain reaction (RT-qPCR) was used to detect the relative expression of lncRNA NPIPA9 in prostate cancer cell lines DU-145, PC-3, C4-2B, 22Rv1, LNCaP and normal prostate epithelial cell RWPE-1. Prostate cancer PC-3 cells were cultured in vitro and divided into control group (transfected with control vector 100 nmol/L) and NPIPA9 group (transfected with lncRNA NPIPA9 vector 100 nmol/L). The proliferation activity of PC-3 cells was detected by CCK-8 method. The migration ability of PC-3 cells was detected by Transwell method. Potential target of lncRNA NPIPA9 were predicted using bioinformatics techniques. The dual-luciferase reporter gene assay determined the target binding relationship between lncRNA NPIPA9 and miR-210-3p. The effect of lncRNA NPIPA9 on the relative expression of miR-210-3p in prostate cancer cells was detected by RT-qPCR. The effect of lncRNA NPIPA9 on the expression of nuclear factor kappa-B (NF-κB) pathway proteins in prostate cancer cells was detected by Western blotting. Measurement data were expressed as mean±standard deviation ( ± s), and t-test was used for comparison between two groups, one-way analysis of variance was used for comparison between multiple groups. Results:The expression of lncRNA NPIPA9 in prostate cancer tissue was lower than that in adjacent tissue, the difference was statistically significant ( P<0.01). The relative expression of lncRNA NPIPA9 in prostate cancer cell lines was lower than that in RWPE-1 cells, the difference was statistically significant ( P<0.01), and the relative expression of lncRNA NPIPA9 in prostate cancer PC-3 cells was the lowest, the difference was statistically significant ( P<0.01). Compared with the control group, lncRNA NPIPA9 had an inhibitory effect on the viability of prostate cancer PC-3 cells, the difference was statistically significant ( P<0.05). The migration numbers of PC-3 cells in the control group and NPIPA9 group were 101.70±8.63 and 45.97±8.83, respectively, and lncRNA NPIPA9 had an inhibitory effect on PC-3 cell migration, the difference was statistically significant ( P<0.01). lncRNA NPIPA9 can directly target miR-210-3p, the difference was statistically significant ( P<0.01). The relative expression of miR-210-3p in PC-3 cells in control group and NPIPA9 group were 5.32 ± 0.79 and 1.11 ± 0.56, respectively, and lncRNA NPIPA9 could directly down-regulate the expression of miR-210-3p in PC-3 cells, the difference was statistically significant ( P<0.01). Compared with the control group, lncRNA NPIPA9 can reduce the expression of NF-κB pathway proteins c-Myc, MMP-9, VEGF, p65, p50 in PC-3 cells. Conclusion:The expression of lncRNA NPIPA9 is down-regulated in prostate cancer tissues, and it reduces the proliferation and migration ability of prostate cancer PC-3 cells by targeting and negatively regulating miR-210-3p.

Objective:To explore the mechanism by which miRNA-4469 (miR-4469) regulates the proliferation and invasion of renal cancer cells in vitro.Methods:The survival differences of patients with different expression levels of miR-4469 were analyzed based on the OncomiR database. Real-time fluorescence quantitative polymerase chain reaction (qRT-PCR) method was used to detect the expression of miR-4469 in renal cancer cell lines ACHN, OS-RC-2, SK-RC-20, 769-P, A498 and normal renal tubular epithelial cell line HK-2, and the renal cancer cells with the lowest expression level of miR-4469 were divided into miR-4469 group and control group, and were transfected with miR-4469 mimic and negative control sequence, respectively. The CCK-8 assay was used to detect the cell proliferation ability (expressed as absorbance value) in the two groups, and Transwell assay was used to analyze the number of invasive cells in the two groups. TargetScan Release 8.0 software was used to predict the binding site between miR-4469 and protein disulfide isomerase A4 (PDIA4) mRNA, and dual-luciferase reporter gene assay was used to verify the targeting relationship between miR-4469 and PDIA4 mRNA. qRT-PCR method was used to detect the expression of PDIA4 mRNA in cells of each group, and Western blotting method was used to detect the expression levels of PDIA4 protein and PI3K-AKT-m-TOR pathway proteins in cells of each group.Results:Analysis of relevant data from the OncomiR database showed that compared with patients with low miR-4469 expression, the overall survival of renal cancer patients with high miR-4469 expression was better ( P < 0.001). The relative expression of miR-4469 in each renal cancer cell line was lower than that in HK-2 cells (all P < 0.05), and the expression of miR-4469 in 769-P cells was the lowest, which were selected to perform the subsequent experiments. The proliferation ability of 769-P cells in the miR-4469 group was lower than that in the control group ( P < 0.01). The number of 769-P cell invasions in the miR-4469 group were less than that in the control group [(19±3) cells vs. (64±7) cells, t = 5.44, P = 0.002]. Compared with the co-transfection of wild-type PDIA4 and miR-4469 negative sequence group, the relative luciferase activity of cells in the co-transfection of wild-type PDIA4 and miR-4469 mimic sequence group was lower (0.42±0.07 vs. 1.01±0.08, t = 5.74, P = 0.001); there was no statistical difference in cell luciferase activity between the co-transfected mutant PDIA4 and miR-4469 negative sequence group and the co-transfected mutant PDIA4 and miR-4469 mimic sequence group (0.99±0.11 vs. 1.02±0.11, t = 0.19, P = 0.001). The relative expression levels of PDIA4 mRNA in 769-P cells in the miR-4469 group were lower than that in the control group (0.98±0.23 vs. 7.19±2.23, t = 2.77, P = 0.032). Compared with the control group, the expression of PDIA4 protein and PI3K-AKT-m-TOR pathway-related p-PI3K, p-AKT, p-mTOR, and p-SGK1 proteins in 769-P cells in the miR-4469 group were all lower (all P < 0.05). Conclusions:miR-4469 may be related to the survival of renal cancer patients, and its expression is down-regulated in various renal cancer cell lines. miR-4469 may inhibit the proliferation and invasion of renal cancer 769-P cells by regulating the PI3K-AKT-m-TOR pathway through PDIA4.

BACKGROUNDMycoplasma pneumonia (M. pneumoniae) is one of the key pathogens of community-acquired pneumonia. A global pandemic of M. pneumoniae has occurred since 2010. The aim of this study was to survey the prevalence of M. pneumoniae in children in Beijing from 2007-2012.

METHODSA total of 3 073 clinical specimens were obtained from pediatric patients with respiratory tract infections from January 2007 to December 2012, and examined by nested polymerase chain reaction. PCR products were visualized by 2% agarose gel electrophoresis, positive products sequenced, and compared with reference sequences in GenBank. Macrolide resistance-associated mutations were also detected for some positive samples.

RESULTSOf the 3 073 specimens, 588 (19.13%) were positive for M. pneumoniae, 12.4% of which were accompanied by viral infections. Positive rates for M. pneumoniae were highest in 2007 and 2012, showing a significant difference when compared with other years. Infections tended to occur in autumn and winter and positive rates were significantly higher for children aged 3-16. The rate of macrolide resistance-associated mutations was 90.7%, and the predominant mutation was an A→G transition (89.92%) at position 2063 in domain V of the 23S rRNA gene.

CONCLUSIONSM. pneumoniae outbreaks occurred in 2007 and 2012 in pediatric patients in Beijing, which is consistent with the global prevalence of M. pneumoniae. M. pneumoniae can cause multi-system infections in children, and may be accompanied with viral infections. We determined that school-age children are more susceptible to this disease, particularly in autumn and winter. Gene mutations associated with macrolide resistance were very common in M. pneumoniae-positive specimens during this period in Beijing.

Adolescent ; Anti-Bacterial Agents ; therapeutic use ; Child ; Child, Preschool ; Drug Resistance, Bacterial ; Female ; Humans ; Macrolides ; therapeutic use ; Male ; Mycoplasma pneumoniae ; pathogenicity ; Pneumonia, Mycoplasma ; drug therapy ; epidemiology ; Prevalence

【Objective】 To explore the polymorphism of HPA-1-6w, HPA-15 and 32bw-35bw in platelet donors in Deyang, Sichuan, and estimate whether to include the detection of 32bw-35bw in the platelet bank. 【Methods】 Polymerase chain reaction with sequenced based typing (PCR-SBT) was used to sequence the HPA-1-6w, HPA-15 and 32bw-35bw loci of 205 platelet donors in Deyang. Allele frequencies were calculated by the direct counting method. The frequencies of HPA-1-6 and 15 alleles in northern and southern Chinese, Japanese and Australian population were compared, and those HPA loci and HPA-32bw-35bw were searched in the Chinese Millionome Database (CMDB) and genomAD to obtain the polymorphism data. Then the Chi-square test was performed with the data of this study through GraphPad Prism 9 software. 【Results】 The allele frequencies of HPA-1b, 2b, 3b, 5b, 6bw and HPA-15b were 0.005(2/410), 0.037(15/410), 0.471(193/410), 0.020(8/410), 0.010(4/410) and 0.461(189/410), respectively, b allele of HPA-32bw-35bw and HPA-4 was not detected. Statistical significance was observed between the HPA-1b allele frequency of this study and northern Chinese, Australian population and genomAD global population sample (P< 0.05, 0.005 vs 0.014 vs 0.145 vs 0.122). The frequency of HPA-2b alleles in this study, Japanese population and genomAD global population samples was 0.037 vs 0.120 vs 0.100, with statistical difference(P<0.05). Comparison of HPA-5b and HPA-6bw allele frequencies with those of genomAD global population showed a statistical difference (P<0.05, 0.020 vs 0.089 and 0.010 vs 0.000 008, respectively). 【Conclusion】 The polymorphisms of HPA-1-6w and HPA-15 of donors in Deyang has characteristics of the southern Chinese. The frequencies of HPA-32bw-35bw were extremely low, which could be excluded from the platelet bank in Deyang.