Objective:To evaluate the measurement uncertainty in the determination of paracetamol tablets by UV. Methods:The mathematical model of content determination by UV was established and the uncertainty sources were analyzed. Each active component of uncertainty was calculated, and the expanded uncertainty was obtained. Results:The expanded uncertainty for the UV determination of paracetamol tablets was 1. 2%,and the content determination result was (97. 0 ± 1. 2) % (k=2). Conclusion:The main sources of uncertainty are analyzed, which can provide reliable theoretical basis for the effective control of the method.

Humidificait on by artificial means must be provided when the upper airway is bypassed during mechanical ventilation.Enough humidification is very important during mechanical ventilation.Heated humidification( HH) and heta and moisture exchanger( HME) are the most commonly used types of artificial humidification in this situation.In this article, their advantages and disadvantages are itn roduced.HH na d HME are compared in humidification performance,effect no ventilator mechanics and association with venti-lation associated pneumonia.Depending on the clinical scenario, humidifier is reasonably selected, and the selection may changeo ver time according the treatment effect.

Objective To evaluate the safety and efficacy of transcatheter closure of perimembranous ventricular septal defects(VSD) using domestic symmetric double-disk occluders.Methods From March 2003 to July 2007,689 VSD patients were treated with transcatheter intervention using domestic symmetric double-disk occluders and received clinical follow up at 1 month,3 months,6months after the procedure and annually thereafter.Complications including residual shunt,heart rhythm changing,shape of the occluder and the presence of tricuspid/aortic regurgitation were observed thoroughly.Results The overall technical success rate was 98.8%.One patient died of cerebral bleeding 7 days after intervention.One patient suffered complete A-V block and required permanent pacemaker implantation and another patient conversed to open surgery because of moderate tricuspid regurgitation.Asymmetric Amplatzer occluders were used in 6 patients but the intervention failed in 2 patients whom required an open conversion.Comorbidities such as atrial septum defect,patent foramen ovale were treated concomitantly.No other complications were observed during the follow-up period.Conclusion Complication associated with transcatheter closure of perimembranous VSD using domestic symmetric double-disk occluders was relatively low.The procedure was safe and applicable.Meanwhile,it is necessary to stick to the procedural indications and avoid complications such as tricuspid regurgitation etc.

Objective To evaluate the shore-term efficacy and the X-ray evolution of new smear positive pulmonary tuberculosis after short-course chemotherapy. Methods 3229 cases with new smear positive pulmonary tuberculosis were treated with 2H_3R_3Z_3S_3/4H_3R_3 or 2 H_3R_3Z_3E_3/4H_3R_3 chemotherapy.Clinical efficacy and the X-ray evolution were analyzed after treatment. Results Among 3229 cases after treatment,the clinical cure rate and chest X-ray effective rate were 98%(3163/3229) and 98%(3163/3229) respectively. Conclusion The standardized chemotherapy treatment can achieve high clinical cure rate and X-ray cure rate for pulmonary tuberculosis.

Objective:To investigate the possibility of miR-125b in serum as a novel tumor marker for primary hepatocellular car-cinoma (HCC) and the diagnosis value of combined detection of miR-125b and alpha-fetoprotein (AFP) for HCC. Methods:We detected serum miR-125b expression of 65 cases of HCC patients and 30 cases of healthy controls by real-time quantitative PCR. Moreover, we analyzed the significance of miR-125b and explored the relationship between miR-125b and clinical pathological factors. Results:The level of miRNA-125b was down regulated in serum of HCC patients compared with healthy controls which showed significant differences (P<0.05). Furthermore, the expression of miRNA-125b has no distinct correlation with sex, age, HbsAg, AFP, ALT andα-GGT, which had no significant differences (P>0.05). The expression level of miRNA-125b correlated the difference with liver Cirrhosis, tumor size and tumor node metastasis (TNM) stages, which were considered significant differences (P<0.05). The receiver operating characteristic (ROC) curve analysis of serum miR-125b for the diagnosis of HCC yielded AUC of 0.917(95%CI:0.851~0.960, P<0.001)with 85.9%sensitivity and 93.5%specificity. The ROC curve analysis of combined miR-125b and AFP for HCC detection yielded AUC of 0.951(95%CI:0.894~0.982, P<0.001)with 92.9%sensitivity and 93.5%specificity. The ROC curve analysis of serum miR-125b as biomarkers for the group (AFP<20μg/L) of HCC yielded AUC of 0.889(95%CI:0.776~0.957, P<0.001)with 84.0%sensitivity and 87.1%specificity. Conclusion:Serum miRNA-125b combined with AFP has considerable clinical value for the early diagnosis of primary HCC.

Objective To probe the effect of applying montelukast combined with pidotimod in asthma of aged patient.Methods 120 cases of asthma in non-acute episode phase were randomly divided into three groups.Group 1 was treated with montelukast combined with pidotimod,group 2 was treated with montelukast,and the control,namely group 3 was ketotifen.All cases were treated by means of intensification therapy including glucocorticoids,?_2 agonists and some necessary anti-infection during acute episode.Results After 10 weeks treatment,both group 1 and 2 made notable improvement with respect to many asthma control parameters(P

0.05). But the amplitudes of the PhNR were significantly reduced in group of primary optic nerve atrophy (P

Objective:To study the occlusion characteristics of the young subjects with bruxism before and after treatment by elastic occlusal splint. Methods:10 patients with bruxism and aged 22-27 years(n=10) were treated by elastic occlusal splint, before and 6 months after treatment they were examined by T-Scan occlusion detector. The occlusion time( OT) , disclusion time( DT) , oc-clusion force( OF) , the perentage of occlusion force( POF) , the changes of the position of center occlusal force( COF) and the asym-metry index of occlusion force(AOF) were observed and compared with those of the healthy controls(n=10). Results: ① In the case group there was significant difference in the OT and DT between left and right anterior teeth before treatment (P<0. 05), but not after treatment (P>0. 05). There was significant difference in the momevent of COF of left and right side, the POF of right side and the AOF between the 2 groups before treatment, but not after the treatment(P>0. 05). ② In the case group after treatment the OT and DT of left and right anterior teeth were shortened(P<0. 05). The POF of right side and the AOF were significantly improved. In the case group DT, OF center excursion, the left POF and the AOF showed no significant difference before and after treatment( P>0. 05). Conclusion:The occlusal factors such as early contact, lateral teeth synthetic interference, occlusal force center excursion have close relationship with bruxism. Elastic occlusal splint can effectively correct muscle dysfunction and make occlusal relationship more coordinated and stable, and therefore is effective in the treatment of bruxism.

Objective To explore the application effect of a new lighted surgical aspirator in deep brain hematoma removal operation.Methods Totally 153 patients of non-traumatic basis festival area cerebral hemorrhage were randomly divided into a control group and a treatment group.Both the groups underwent clearance of intracranial hematoma and decompressive craniectomy surgical operation in the operating room,with the common aspirator involved in the control group and the lighted one in the treatment group.Results There was no significant difference between the rates of hematomal removal in the groups (P＞0.05).The treatment group had the operating time less by 59.85 min and the hospital stay decreased by 15.23 d than those in the control group (P＜0.05).The GOS score and daily viability of the treatment group was also statistically higher than those of the control group (P＜0.05),and the effective rate in the treatment group was also more than that in the control group by 24.9％ (P＜0.05).Conclusion The new aspirator solves the problems in visual field and light source,decreases the operating time and improves the disease prognosis.

AIM: Anti-atherosclerosis effects of Momordica charantia L was further studied in a New Zealand rabbit atherosclerotic model at the basis of anti-inflammation and antioxidant effects. METHODS: Animals were divided into 3 groups: normal group (normal rabbit diet), atherosclerosis group(diet containing 2% cholesterol), and Momordica charantia L group(diet containing 2% cholesterol and 1 5% sarcocarp of Momordica charantia L ). Ninety days later, all animals were sacrificed. The effect of Momordica charantia L on atherosclerosis was evaluated by measuring serum lipid and total cholesterol content of artery wall, observing fatty liver degree, aorta arteriosclerotic area, and the thickness of intima. RESULTS: The level of total serum cholesterol and LDL-C in Momordica charantia L treatment group were obviously lower than those in atherosclerosis group, so were the total cholesterol content of artery wall, fatty liver degree, atherosclerotic area, intima thickness and I/M ratio, but no significantly difference was found between the two groups in TG level. The level of HDL-C in Momordica charantia L treatment group was evidently lower than that in normal control group. CONCLUSION: Momordica charantia L has an anti-atherosclerosis action in rabbits.