Objective To evaluate the impact of lower renal calyceal anatomic structure on flexible fibreoptic ureteroscopy with holmium laserin treatment of calyceal calculi.Methods From January 2007 to December 2011,a total of 60 patients with a lower calyceal renal stone were enrolled in this study.The mean age was 51 years (range 23 to 78 years).The mean height was 169.8 cm,and mean body mass was 71.2 kg.Intravenous urogram (IVU) was performed on all patients and the lower pole anatomy (including infundibulopelvic angle,length of the inferior caliceal infundibulum and infundibular width) were measured in these patients.The correlation between lower pole anatomy and the success of flexible fibreoptic ureteroscopy with holmium laser for calyceal calculi was analyzed.Results Of the 60 patients,42 patients were successful in stone clearance.The patients in the stone-free group age of (50.1 ± 14.6) years,height (169.8 ±5.1) cm,body mass (71.4 ±5.1) kg,the maximum stone size in diameter (10.9 ±2.1) mm,stone burden (85.4 ± 9.5) mm2,lower infundibular length (36.3 ± 3.7) mm and lower infundibular width (4.9 ±1.4) mm; the other 18 patients age (50.7 ± 11.7) years,height (169.9 ±6.4) cm,body mass (71.6±4.7) kg,the maximum stone size in diameter (11.3 ±2.4) mm,stone burden (82.5 ±8.6)mm2,lower infundibular length (37.2 ± 2.3) mm and lower infundibular width (4.8 ± 1.9) mm.There was no difference between the stone-free group and the residual group in all above parameters (P ＞ 0.05).However,the infundibulopelvic angle in the stone-free group was significantly greater than that in the residual group (63.4 ± 23.2 vs 45.32 ± 17.6,P ＜ 0.05).x2 test showed the stone clearance rate in patients with angle ≥45 was better than that in those with angle ＜45 (84.6％ vs 42.7％,P ＜0.05).If grouped by infundibulopelvic angle,patients with infundibulopelvic angle greater than 90°had stone clearance rate 92.3％ (12/13),those with angle ranged from 30° to 90° had 73.2％ (30/41),and those with infundibulopelvic angle smaller than 30° had 0％ (0/6).Logistic regression analysis showed that the angle was a significant independent predictor of stone clearance (OR =1.12,P ＜ 0.05).Conclusions The infundibulopelvic angle has adverse influences on the performances of flexible ureteroscopy.The samller the angle is,the poorer the performances of flexible ureteroscopy is.

Objective To investigate the efficiency and safety of intervention with flexible bronchoscope under general anesthesia by using laryngeal mask in patients with severe tracheal stenosis induced respiratory failure.Methods A total of 16 in-patients with respiratory failure caused by severe tracheal stenosis admitted from September 2009 to March 2012 were retrospectively reviewed.A comprehensive bronchoscopic intervention for the complete patency of airway was successfully performed with various techniques such as cryotherapy,electrocautery,balloon dilatation,and implantation of selfexpanding metal stents under genersl anesthesia by using laryngeal mask.The efficiency of comprehensive bronchoscopic intervention and dyspnea score were evaluated by chest CT scan and bronchoscopic examination before and after the treatment.Data were expressed as ((x-)± s).Paired t test was used for statistical analysis of the data.Results The degrees of tracheal stenosis and dyspnea score before and after intervention were (85.0±8.4)％ vs.(20.9±7.6)％ (P＜0.01) and (3.9±0.3vs.2.4±0.5,P＜ 0.01),respectively.There were no life-threatening complications occurred including massive haemorrhage.Conclusions It is an effective and safe technique to resolve the tracheal stenosis-induced respiratory failure with intervention by using flexible bronchoscope under general anesthesia with laryngeal mask,and it is a promising interventional treatment for clinic application.

Objective To treat hematospermia by ureteroscopy and investigate its application value for the treatment of hematospermia.Methods Nineteen patients with persistent hematospermia, TRUS,seminal vesicle MRI or CT were examined to exclude seminal vesicle tumor, tuberculosis, prostatic occupancy and preoperative prostatic fluid and drug sensitivity.Transurethral 4.5 - 6 F ureteroscopy entered through the microscopic seminal vesicle, wash of the old blood, reserved perfusion with Quinolones, and the lithoclasty on the seminal stones by holmium laser, resection of small polypi.Results The ureteroscopy was successful in 18 (95%) cases for bilateral seminal vesicle, wash and drug reserved perfusion, and one case was also successful seminal vesicle microscopy on the affected side; five cases with the seminal stones by olmium laser, three cases with small polypi by resection.The averse duration of the procedure was 35 10 -75) min.There were no compliocations during or after the operation.In 18 cases at 6 - 12 months follow-up the hematospermia and symptoms of hematospermia disappeared fully after 90 d.There was recurrence in one case which improved with anti-inflammaotry treatment.Conclusions Ureteroscopic treatment for persistent hematospermia by 4.5 - 6 F ureteroscopy through the seminal vesicle is effective and safe method and results in a micro-wound.

OBJECTIVETo analyze two Chinese pediatric patients with multiple malformations and growth and development delay.

METHODSBoth patients were subjected to targeted gene sequencing, and the results were analyzed with Ingenuity Variant Analysis software. Suspected pathogenic variations were verified by Sanger sequencing.

RESULTSHigh-throughput sequencing showed that both patients have carried heterozygous variants of the CHD7 gene. Patient 1 carried a nonsense mutation in exon 36 (c.7957C>T, p.Arg2653*), while patient 2 carried a nonsense mutation of exon 2 (c.718C>T, p.Gln240*). Sanger sequencing confirmed the above mutations in both patients, while their parents were of wild-type for the corresponding sites, indicating that the two mutations have happened de novo.

CONCLUSIONTwo patients were diagnosed with CHARGE syndrome by high-throughput sequencing.

CHARGE Syndrome ; genetics ; DNA Helicases ; genetics ; DNA-Binding Proteins ; genetics ; Genetic Testing ; High-Throughput Nucleotide Sequencing ; Humans ; Infant ; Male ; Mutation

Expressed Sequence Tag (EST) analysis has pioneered genome-wide gene discovery and expression profiling. In order to establish a gene expression index in the rice cultivar indica, we sequenced and analyzed 86,136 ESTs from nine rice cDNA libraries from the super hybrid cultivar LYP9 and its parental cultivars. We assembled these ESTs into 13,232 contigs and leave 8,976 singletons. Overall, 7,497 sequences were found similar to existing sequences in GenBank and 14,711 are novel. These sequences are classified by molecular function, biological process and pathways according to the Gene Ontology. We compared our sequenced ESTs with the publicly available 95,000 ESTs from japonica, and found little sequence variation, despite the large difference between genome sequences. We then assembled the combined 173,000 rice ESTs for further analysis. Using the pooled ESTs, we compared gene expression in metabolism pathway between rice and Arabidopsis according to KEGG. We further profiled gene expression patterns in different tissues, developmental stages, and in a conditional sterile mutant, after checking the libraries are comparable by means of sequence coverage. We also identified some possible library specific genes and a number of enzymes and transcription factors that contribute to rice development.
Arabidopsis ; genetics ; DNA, Complementary ; metabolism ; Databases as Topic ; Expressed Sequence Tags ; Gene Library ; Genome, Plant ; Genomics ; methods ; Multigene Family ; Open Reading Frames ; Oryza ; genetics ; Quality Control ; Software

OBJECTIVETo establish a risk early warning model of human infection with avian influenza A (H7N9) virus and predict the area with high risk of the outbreak of H7N9 virus infection.

METHODSThe incidence data of human infection with H7N9 virus at prefecture level in China from February 2013 to June 2014 were collected, and the geographic and meteorological data during the same period in these areas were collected too. Spatial auto regression (SAR) model and generalized additive model (GAM) were used to estimate different risk factors. Afterwards, the risk area map was created based on the predicted value of both models.

RESULTSAll the human infections with H7N9 virus occurred in the predicted areas by the early warning model in February 2014. The early warning model successfully predicted the spatial moving trend of the disease, and this trend was verified by two outbreaks in northern China in April and May 2014.

CONCLUSIONThe established early warning model showed accuracy and precision in short-term prediction, which might be applied in the active surveillance, early warning and prevention/control of the outbreak of human infection with H7N9 virus.

China ; epidemiology ; Disease Outbreaks ; Humans ; Incidence ; Influenza A Virus, H7N9 Subtype ; Influenza, Human ; epidemiology ; virology ; Models, Statistical ; Population Surveillance ; methods ; Risk ; Risk Factors