Adolescent ; Child ; Child, Preschool ; Dendritic Cells ; Female ; Humans ; Infant ; Male ; Neoplasm, Residual ; pathology ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; pathology

Objective To summarize the features of esophageal hiatus hernia (EHH) on contrast-enhanced ultrasound (CEUS) and investigate the diagnostic value of CEUS in EHH.Methods A retrospective analysis of 88 EHH patients and 50 healthy controls was conducted with focus on their findings on CEUS.Results The structures of the cardiac and abdominal esophagus were clear in 50 healthy controls,and the esophageal hiatus diameters were (1.96±0.39) cm.In contrast,the cardiac and abdominal esophagus in EHH patients were unable to be identified in subdiaphragm region.The esophageal hiatus was wider with a diameter of (3.24±0.76) cm.The difference was statistically significant(t=2.36,P＜0.05).The hernia sacs were found in 78 EHH patients at rest.And the hernia sacs were present on the diaphragm in 10 EHH patients after pressure.The maximum diameter of hernia sac was 7.6 cm.The size of hernia sac may change with abdominal pressure.In sliding EHH patients,the sac wall was found to slide up and down the diaphragm.A mass was found on the wall in 2 patients.The B ring was present in 76 patients.For healthy controls in supine position,contrast-enhanced ultrasound showed that the gastric bottom and diaphragm were at dependent or horizontal position.The gastric bottom and diaphragm was upward in 73 patients.Conclusions The EHH has characteristic appearance on CEUS.It is easy to detect and diagnose EHH with CEUS,which has a diagnostic value in detection of space-occupying lesions in hernia sac.CEUS can be used for EHH screening.

In order to assess the effect of long-term versus short-term intravesical chemotherapy in preventing the recurrence of patients with non-muscle-invasive bladder cancer, we searched several databases with words as mesh terms and free text words to find all eligible randomized clinical trials (RCTs) for the comparison of the two strategies of instillation durations. "Observed-Expected events research (O-E)" and "Variance (V)" for calculating hazard ratio (HR) were used in Revman 5.2 software recommended by Cochrane Collabration for data analysis. Sensitivity and subgroup analysis were selected to minish heterogeneity. GRADEpro 3.6 profile recommended by Cochrane Collabration was employed for quality assessment of analyses. Finally, 13 eligible RCTs with 4216 patients were included in this review and 16 comparisons from 13 trials were involved for analysis. The pooled analysis revealed no significant difference between long-term and short-term duration [HR=0.99, 95% CI (0.89, 1.11), P=0.89]. Within the subgroup analysis, patients benefited from long-term instillations with a start regimen of one immediate instillation [HR=0.83, 95% CI (0.69, 1.00), P=0.05]. But patients were not suitable to receive long-term instillations with epirubicin (EPI) [HR=1.01, 95% CI (0.91, 1.13), P=0.78]. The progression rate was not reduced after long-term instillations [HR=0.96, 95% CI (0.66, 1.39), P=0.82]. From our results, patients should not receive introvesical chemotherapy more than half a year. In contrast, patients with one immediate instillation are preferred to have a long-term duration at least one year. Long-term instillations can not reduce the progression rate.

Objective To investigate the mechanism of quinolone resistance in Psendomonas aeruginosa.Methods The minimum inhibitory concentrations (MICs)of ciprofloxacin and levofloxacin with and without carbonylcyainde-m-chlorophenylhydrazone(CCCP)were determined by agar dilution method.Polymerase chain reaction(PCR)and DNA sequencing were used to study the mutations in quinolone resistance-determining region of gyrA and parC genes.The strains were genotyped by enterbacterial repetitive intergenie consensus-PCR(ERIC-PCR).Results Sixteen quinolones-resistant Pseudomonas aeruginosa strains were obtained.The MICs of ciprofloxacin and levofloxacin were not reduced significantly by adding CCCP.Thr-83→Ile of gyrA and Ser-87→Leu of parC were found simultaneously in 16 strains of resistant Pseudomonas aeruginosa.Analysis of ERIC-PCR products indicated that 16 quinolone-resistant strains had an identical band pattern which was different from that seen in the sensitive strains.Conclusion Mutations in gyrA and parC may be the main mechanism of quinolone resistance in clinical isolates of Pseudomonas aeruginosa.

Objective To evaluate the relationship between cardiomyopathy-associated 5 (CMYAS) gene rs10043986 polymorphism and schizophrenia in Uygur Chinese population.Methods The SNP rs10043986 in CMYA5 gene was genotyped in 325 patients with schizophrenia and 183 normal controls using TaqMan technology.The symptoms of schizophrenia were assessed by positive and negative syndrome scale (PANSS).The association of the loci with schizophrenia,age of onset,clinical symptom was analyzed.Results The allelic and genotypic distributions in rs10043986 between patients with schizophrenia (C,T allele:91.5％,8.5％ ; C/C,C/T,T/T genotypes:83.4％,16.3％,0.3％) and normal controls (C,T allele:96.4％,3.6％ ; C/C,C/T,T/T genotypes:92.9％,7.1％,0) had statistically significance after analysis (x2 =9.038,P=0.003 ; x2 =9.417,P=0.009).Via analysis of stratification by gender and age at onset.The results showed that both allele (x2=11.812,P=0.001) and genotype (x2=12.769,P=0.001) frequency in rs10043986 with patients were significantly different in females,but neither in males (all P＞0.05).Allelic or genotypic distributions between adult cases and controls had statistically significance (x2=8.219,P=0.004; x2=8.379,P=0.015),but there were not significant differences between adolescent cases and controls (all P＞ 0.05).Furthermore,we also notice that the PANSS scores of patients between Genotype C/C and C/T had no statistically significance (allP＞0.05).Conclusion The results reveal that T allele at CMYA5 rs10043986 may be confer risk for susceptibility of female and adult schizophrenia in Uygur Chinese population,and that rs 10043986 polymorphism may not significantly associate with symptoms severity of schizophrenia.

Objective To study the safety and efficacy of therapeutic endoscopic retrograde cholangiopancreatography (ERCP) in elderly patients with biliary and pancreatic diseases under the concept of enhanced recovery after surgery (ERAS). Methods 320 patients were enrolled in ERCP operation. Both ERAS elderly group (experimental group A, n = 58, above 75 years) and young and middle-aged group (control group B, n=202,below 60 years)underwent enhanced recovery after surgery,meanwhile traditional elderly group(control group C, n = 60, above 75 years) received traditional perioperative management. It had compared multiple clinical indexes between group A with B and group A with C during the preoperative, intraoperative, and postoperative period. Results The incidence rate of cholangiocarcinoma, multiple complications, nutrition screening ≥ 3 points, ASA scored III degree and Child-Pugh scored A-level in preoperative ERAS elderly patients were higher than that of the young and middle-aged group (P < 0.05); And its incidence rate of nausea and vomiting and abdominal pain,nutritional screening < 3 points and ASA scored I degree were lower than that of the middle-aged group (P < 0.05);the fasting and water- deprivation time of the ERAS elderly group was shorter than that of the traditional elderly group (P < 0.05). The intraoperative operation time of the elderly ERAS group was slightly longer than that of the traditional elderly group (P < 0.05). The duration of electrocardiographic monitoring and the first aerofluxus time of the elderly patients with ERAS were longer than that of the young and middle-aged group (P < 0.05). The success, failure rate, and complication rate of the elderly patients with ERAS were 91.38% (53/58) and 8.62% (5 /58), 3.45% (2/58), meanwhile the young and middle-aged group were 96.53% (195/202), 3.47% (7/202), and 4.95% (10/202), and with no statistical difference (P > 0.05). The mild pain in ERAS elderly group was more than that of in traditional elderly group, while the moderate, and severe pain was less than that of traditional elderly group (P < 0.05); The opioid use rate, endoscopic nasobiliary indwelling, first-time ambulation and aerofluxus, total hospitalization, and postoperative hospitalization time of ERAS elderly group was less than the traditional elderly group (P < 0.05). Conclusions With ERAS, the treatment effect of ERCP in elderly patients is similar to that in young and middle-aged people, and it has good safety and effectiveness.

Objective To investigate the clinical effect of pulmonary rehabilitation therapy including respiratory exercise and vibration expectoration on patients with pulmonary infection after abdominal surgery.Methods A retrospective case control study was conducted.Seventy-six patients with pulmonary infection after abdominal surgery admitted to the First Affiliated Hospital of Hunan Normal University from September 2015 to September 2016 were enrolled.According to whether accept the pulmonary rehabilitation therapy or not,the patients were divided into two groups.In the control group (n =35),the convemional expectoration method was adopted.The patients in pulmonary rehabilitation group (n =41) received both methods of the control group and pulmonary rehabilitation treatment,including respiratory exercise (effective cough,lip reduction breathing),respiratory exercise device (respiratory exerciser tri-ball),and vibrated expectoration.The 24-hour sputum volume,degree of comfort,inflammatory and pulmonary function parameters,and recovery situation were recorded in the two groups.Results ① There were no significant differences in the parameters of inflammation and pulmonary function before treatment between the two groups.After treatment,the white blood cell (WBC) and C-reactive protein (CRP) in both groups were significantly decreased,and the forced expiratory volume in 1 second (FEV1) and FEV1/forced vital capacity (FVC) were significantly increased.The above changes in pulmonary rehabilitation group were more significant than those of the control group [WBC (× 109/L):11.12 ± 2.88 vs.13.42 ± 2.62 at 3 days,8.22 ± 1.48 vs.9.27 ± 1.92 at 5 days;CRP (mg/L):13.47 ± 4.77vs.16.03±4.94 at 3 days,9.69±1.56 vs.11.77±1.41 at 5 days;FEV1 (L):2.48±0.14 vs.2.29±0.16 at 3 days,FEV1/FVC:0.78±0.04 vs.0.75±0.04 at 3 days;all P ＜ 0.05].② The 24-hour sputum volume within 3 days of pulmonary rehabilitation group were significantly higher than that of the control group (mL:30.51 ± 4.15 vs.18.30 ± 3.64at 1 day,31.08±3.22 vs.20.37±3.20 at 2 days,29.03±2.55 vs.19.03±2.51 at 3 days,all P ＜ 0.01].③ In the pulmonary rehabilitation group,the recovery time of pulmonary infection symptoms (days:5.44 ± 1.45 vs.6.20 ± 1.55),the days of antibiotic use (days:12.61 ± 3.15 vs.15.03 ± 3.78),the time of getting out of the bed (days:4.05 ± 0.74vs.4.51±0.89),and the hospital days (days:19.95±3.90 vs.22.00±4.42) were significantly shorter than those of the control group (all P ＜ 0.05),and the degree of comfort was significantly better than that of the control group (comfort score:2.71 ±0.90 vs.2.14±0.91,P ＜ 0.01).Conclusion The application of pulmonary rehabilitation including respiratory exercise and vibration expectoration in abdominal surgery patients with pulmonary infection can promote recovery,and it has a good clinical and practical application value.

Objective To observe the clinical changes in resin and porcelain veneer in restoring dental fluorosis in order to provide a basis for the repair of dental fluorosis. Methods Fifty six severe dental fluorosis patients were divided into porcelain and resin teeth group in the department of Prosthetics, school of Stomatology, Harbin Medical University during 2005 to 2008. All 162 teeth of 25 patients in porcelain group were veneered with porcelain. 201 teeth of 31 patients in resin group were repaired with resin. To evaluat the clinic effect, the veneer surface color was detected by the Easyshade computer-aided colorimeter when the repair was completed and 18 months afterward. The edge of veneer adaptation, retention, secondary caries and abutment were examined after 18 months, and classified by color, shape, function and feeling. Results The color difference between the porcelain and resin teeth group was 0.27±0.20 and 0.21±0.15 when it was completed, and it was 0.28±0.21 and 0.77± 0.68 respectively after 18 months. The color difference value of the porcelain teeth group was lower when it was completed than 18 months later(t=-13.55, P<0.01). The color difference value of the resin teeth group was lower than the porcelain teeth group after 18 months(t=-12.60, P<0.01). The percentage of level A of veneer adaptation in the porcelain group[100%(162/162)] was higher than the resin group[91.04% (183/201), χ2=15.26, P< 0.01) after 18 months. The clinical effect was divided into three degrees of excellent, moderate or failed, into which the number of the teeth catergorized was 158, 4 and 0 in porcelain group, 148, 56 and 4 in resin group respectively. The clinical effect of the porcelain group was superior to the resin group(χ2=44.24, P<0.01). Conclusions The surface color of porcelain veneer last 16nger than the resin veneer, the adaptation and clinical effect is also superior to the resin veneer. But the long-term efficacy of two methods needs further study, especially of the resin veneer.

Objective: To observe the role of rmh-TNF in enhancing the anti-angiogenesis effect of cisplatin on Lewis lung carcinoma in the mice.Methods: Lewis lung carcinoma model was established in C57BL/6 mice.Sixty model mice were randomly divided into 4 groups: control group,rmh-TNF group(1500000 U/kg),cisplatin group(6.15 mg/kg), and rmh-TNF plus cisplatin group.Twelve days after implantation of cancer cells,different drugs were injected intra- tumorallv for 3d.The expression of hypoxia inducible factor-1?(HIF-1?)gene in the tumor was identified by RT-PCR. Immunohistochemistry(IHC)image analysis was performed to determine the vascular endothelial growth factor(VEGF) and kinase domain region receptor(KDR)expression and the microvessel density(MVD).Expression of matrix metallo- proteinase-2(MMP-2)was detected by flow cytometry.Results: The MVD values in the control group,the rmh-TNF group,the DDP group and the combination group were(24.76?1.28),(18.95?1.22),(19.53?1.15),(10.43?1.05),respectively,with those of the rmh-TNF and DDP groups significantly lower than that of the control group and higher than that of the combination group(all P

This paper presents and discusses the liquid density sensing potential of a delay line Lamb-wave sensor configuration, where Lamb wave is excited only by interdigital transducer (IDT), without membrane when fabricated. An optimized cut orientation and the normalized thickness of substrate by using genetic algorithm is presented to improve the sensitivity of the sensor and to get low noise. Experimental measurements performed on Lamb-wave device fabricated from Y-Z LiNbO3 in a delay line configuration are found to be in agreement with theoretical calculations.
Algorithms ; Biosensing Techniques ; instrumentation ; methods ; Equipment Design ; Models, Theoretical ; Sensitivity and Specificity ; Transducers ; Ultrasonics ; Water ; analysis ; chemistry