Objective To design a speech command module to replace manual command during X-ray examination.Methods The module was composed of the parts for speech,pushbutton actuator,speaker,miniature voice box,power source and etc.The electrical conductors were used to connect the above parts,and the speech command was formed by special software.Results The module had the speech command triggered by the pushbutton,and the speech command was pellucid and clear so that the workload could be decreased.Conclusion The module facilitates the speech command during X-ray examination,and thus is worthy promoting practically.

Objective:To evaluate the influence of delayed application of mixed self-etching bonding agent on the tensile bond strength.Methods:Two "two-bottle,one-step" self-etching adhesives,Adper Prompt and Xeno III,were evaluated.The occlusal enamel of human third molar was cut out and the exposed dentin surface was divided in two halves by a 1 mm deep groove in the labial-lingual orientation to allow for evaluation of immediate application and delayed application(0.5,1,2,3,4,5 and 6 h) of mixed self-etching bonding agent in the same specimen,followed by composite resin built-up on the adhesive.The bonded specimens were sectioned into beams of approximately 0.9 mm2 and subsequently subjected to micro-tensile bond strength testing at a crosshead speed of 1.0 mm/min.Results:The specimens bonded with the Adper Prompt within 5 h after mixing showed no different and that with the Xeno III within 3 h after mixing showed no different.Conclusion:The effective period for "two-bottle,one-step" self-etching adhesives after mixing is limited.Different bonding agents have different effective periods.

Objective To investigate the relationship between expression of survivin and CD44v6 and HPV16/18 infection in uterine cervical carcinogenesis.Methods Using Streptavidin-Peroxidase(S-P) immunohistochemical technique,the authors examined the expression of survivin and CD44v6 in samples.The infection of HPV type 16,18 DNA was determined by PCR.Results There were significant differences for survivin and CD44v6 between carcinomas,CIN and normal cervices(P

Objective To evaluate the effect of electrical stimulation of the pelvic floor muscles combined with bladder training on urinary dysfunctionafter incomplete spinal cord injury.Methods Sixty-two incomplete spinal cord injury patients who had received an operation between November 2009 and December 2014 were enrolled and divided randomly into a control group (n=32) and a treatment group (n =30).Both groups were treated with conventional intermittent catheterization,while the treatment group was additionally given electrical stimulation of the pelvic floor muscles combined with bladder training.The residual urine volume was recorded before and after the treatment.Uurodynamic examinations were conducted,and the rate of successful catheter extraction and of urinary tract infection on the 15th and 30th day of treatment,were recorded and analyzed.Results All of the patients were followed-up for an average of 18.5 months.Significant improvement was observed in the residual urine volume,the maximum or average urinary flow rate,and the detrusor pressure at peak flow of both groups.However,at the end of follow-up the treatment group recorded significantly better results on all these measures than the control group.The successful catheter extraction rate of the treatment group (96.7％) was significantly higher than that of the control group and their average number of catheterization days was significantly fewer.The urinary tract infection rates on the 15th and 30th day of treatment were 16.7％ and 6.7％ in the treatment group,significantly lower than in the control group.Conclusions Electrical stimulation of the pelvic floor combined with bladder training significantly improves urination function after an operation for incomplete spinal cord injury,decreases the days of catheterization and lowers the rate of urinary tract infection.Such combined therapy is worth promoting in clinical practice.

ObjectiveTo compare the therapeutic effec between sustained low-efficiency dialysis (SLED) and continuous blood purification (CBP) in critically ill patients.MethodsAccording to the treatment ways,96 critically ill patients were divided into SLED group and CBP group.A comparison was made on the biochemical indicators,in-hospital duration,hemodynamic parameters,acute physiology and chronic health evaluation (APACHE-Ⅱ ),the survival and the mortality rates.ResultsAfter treatment,the levels of serum creatine kinase isozyme MB (CK-MB),creatine kinase (CK),creatinine (Cr),glutamic-oxalacetic transaminase (AST),glutamate-pyruvate transaminase (ALT),APACHE Ⅱ score on the 1st,2nd and 7th day were lower than those prior to the treatment in both groups ( P ＜0.05).There were no statistical differences in in-hospital duration, biochemical indicators, APACHEⅡscore,hemodynamic parameters,the survival rate and the mortality rate between the two groups (P ＞ 0.05 ).ConclusionsSLED has similar hemodynamic stability with CBP,and the two methods have similar treatment effects in critically ill patients.However,SLED can be relatively economical and convenient for critically ill patients in clinical.

Background: Although there are some Chinese herbal medicines in treatment of constipation, but no multi-center randomized controlled trials have been carried out to prove their effectiveness. Objective: To evaluate the safety and efficacy of Yunchang Capsule in treatment of functional constipation with deficiency of both qi and yin and internal accumulation of poisonous pathogenic factors syndrome, and to explore the clinical dosage. Design, setting, participants and interventions: A randomized, double-blinded controlled, multicenter trial was conducted. A total of 240 patients with functional constipation from West China Hospital of Sichuan University, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, the First Affiliated Hospital of Tianjing University of Traditional Chinese Medicine and Fujian Academy of Traditional Chinese Medicine were randomly divided into three groups: low dose group (80 cases), high dose group (80 cases) and control group (80 cases). Patients in the low dose group were treated with two pills (0.35 g/pill) of Yunchang Capsule and one pill of Yunchang Capsule simulant for three times daily; patients in the high dose group were treated with three pills (0.35 g/pill) of Yunchang Capsule for three times daily; and patients in the control group were treated with three pills (0.35 g/pill) of Biantong Capsule for three times daily. The therapeutic course was 14 days. Main outcome measures: Clinical symptoms, syndromes, and adverse effects were observed before and after the treatment, and blood, urine and stool tests, hepatorenal function and electrocardiogram were also examined. Results: Two cases were excluded, eleven cases were lost to follow-up, and there were 234 patients entered to intention-to-treat (ITT) analysis. After the treatment, the therapeutic effects were calculated by full analysis set (FAS) and per-protocol population set (PPS) analysis respectively. The effects on functional constipation in FAS showed the response rates in the low dose, high dose and control groups were 86.25% (69/80), 82.90% (63/76), and 70.52% (55/78) respectively, and PPS analysis showed the response rates were 85.71% (66/77), 83.56% (61/73), and 70.13% (54/77) respectively. There were no significant differences among the three groups (P>0.05). The effects on traditional Chinese medicine syndrome in FAS showed the response rates in the low dose, high dose and control groups were 78.75% (63/80), 69.74% (53/76), and 67.95% (53/78) respectively, and PPS analysis showed the response rates were 77.92% (60/77), 69.87%(51/73), and 67.53% (52/77) respectively. There were also no significant differences among the three groups (P>0.05). No severe adverse events were observed. Conclusion: Both low dose and high dose of Yunchang Capsule are effective and safe in treatment of functional constipation with deficiency of both qi and yin and internal accumulation of poisonous pathogenic factors syndrome.

Objective To evaluate factors influencing long-term survival of biliary atresia patients receiving Kasai procedure and the prevention and treatment of surgical complications.Methods Among 97 biliary atresia patients undergoing Kasai or Suruga operation from Mar 1989 to Mar 1999, 35 cases have survived over five years.These 35 cases were classified intraoperatively into type Ⅱ (4 cases) and type Ⅲ (31 cases).Procedures included hepaticojejunostomy (12 cases), Suruga operation (hepaticojejunostomy with a jejunal fistula in 21 cases), hepaticocystomy (2 cases).Six patients underwent second hepaticojejunostomy because of porta hepatis obstruction.Results (1) Eighteen patients suffered from early cholangiolitis, and four cases developed late cholangiolitis, 5-8 years after closing the ascending stoma.(2) Five cases presented upper digestive tract hemorrhage caused by portal hypertension.(3) All patients were followed up from 5 to 15 years with 2 deaths.Conclusion Conventional surgical procedures still take important part in treating biliary atresia before liver transplantation is popularized.Factors influencing long term survival of patients receiving Kasai′s operation include age at operation, pathological classification of extrahepatic bile duct, with or without cholangitis after operation, and portal hypertension.

Bones are important supporting structure of human body. Impulse response method is a kind of vibration analysis technology which can be used to analyze dynamic characteristics of human bones. Along with the continuous development of signal processing and computer technology, impulse response method is applied more and more in bone biomechanics research. The basic principle of impulse response method and its progress in bone biomechanics research are briefly summarized in this paper. The article also discussed the pulse response method research direction.

Objective To assess the value of apparent diffusion coefficient (ADC)map with low b-value to monitor the ablated tissue after high-intensity focused ultrasonic (HIFU)treatment for uterine fibroids.Methods 25 patients with 34 uterine fibroids were treated with HIFU.All patients underwent the routine MRI scans (including pre-and post-contrast scanning)and monoexponential model DWI with b values of 150,600 and 1 000 s/mm2 before the surgery and within 24 hours after the surgery.The mean ADC values with different b-values of the ablated and non-ablated tissues between pre-and post-treatment were analyzed by one-way ANOVA test.The consistency of the ablation area between ADC maps with different b-values and contrast enhancement MRI were evaluated. Results With the b-value of 150 s/mm2 ,the mean ADC value of the ablated tissue was (1.48±0.27)×10-3 mm2/s,which was less significantly than that of pre-treatment (2.06±0.21)×10-3 mm2/s and non-ablated tissue (1.98±0.23)×10-3 mm2/s (P<0.05). However,there were no significant differences in ADC values with the b values of 600 s/mm2 and 1 000 s/mm2 among those areas (P>0.05).A fine consistency of the ADC map with the low b-value (150 s/mm2 )was found with non-perfusion volume on contrast-enhanced T1 WI,which was superior to that with high b-values (600 s/mm2 and 1 000 s/mm2 )(P<0.05).Conclusion ADC map with low b-value (150 s/mm2 )can be used to evaluate the blood-supply changes and ablated volume of uterine fibroids indirectly,which helps to assess the treatment effect of HIFU.

Objective: To investigate the characteristics of 25(OH)D level in children with ASD and its correlation with clinical features. Methods: A total of 196 children with ASD who received outpatient and inpatient rehabilitation training from January 2017 to January 2019 were included in ASD group, and 178 healthy children who visited the hospital during the same period were included in healthy control group. Differences in 25(OH)D levels and general data between study group and healthy control group were compared. In addition, ASD group was divided into 25(OH)D normal group and abnormal group in accordance with 25(OH)D level (≥30 ng/mL). Differences in general data, total score of CARS scale and factor scores were compared between two groups. Finally, the correlation between serum 25(OH)D level and CARS total score and factor scores of children with ASD was evaluated. Results: 25(OH)D level in ASD group was significantly lower than that in healthy control group (P<0.01). The incidence of sleep disorder, dietary bias, vomiting, constipation and diarrhea in children with ASD was statistically significant compared with that of healthy children (P<0.01); there were statistically significant differences in breastfeeding, sleep disorder, dietary bias and diarrhea between 25(OH)D normal group and abnormal group (χ2=4.97，8.69,6.67,3.98,P<0.05); there were statistically significant differences in 10 aspects including CARS total score, interpersonal relationship, imitation, emotional response, physical use ability, relationship with inanimate objects, adaptation to environmental changes, visual response, auditory response and general impression (P<0.05); there was a significant negative correlation between serum 25(OH)D level and CARS total score in children with ASD (r=-0.32, P<0.01). Conclusion Breastfeeding could reduce the risk of 25(OH)D abnormalities in children with ASD. 25(OH)D reduction would cause sleep disorder, dietary bias and gastrointestinal problems, while dietary bias and gastrointestinal problems would affect 25(OH)D uptake and absorption. 25(OH)D might be related to the occurrence of ASD in children. Serum 25(OH)D level could be used as a reference index for the severity of ASD in children.