Objective To explore the clinical application of non - invasive sonography in the determination of detrusor thickness in bladder outlet obstruction. Methods Admitted from January 2012 to January 2014, 116 pa?tients with bladder outlet obstruction were selected as observed group, while another 88 patients without bladder outlet obstruction at the same period were selected as control group. The detrusor thickness determined by sonography in the two groups was comparatively analyzed. Results There were significant differences between the two groups in DWT, residual urine volume, urine output, Qmax, PdetQmax and Pdetmax and other indicators (p <0.05). Conclusion Ultrasonic determination of anterior bladder detrusor thickness is reliable to diagnose bladder outlet obstruction, with a high clinical promotional and diagnosis value.

ObjectiveTo compare the characteristics of urinary function in the patients with spinal cord injury or stroke. MethodsThe urinary diaries of 40 patients with spinal cord injury and 43 patients with stroke during a week were analyzed. ResultsIn the group of spinal cord injury, the average frequency of incontinence was 11 times a day, the average incontinence volume was (180.6±21.4) ml, and the average residual urine volume was (257±86.5) ml, while in the group of stroke, it was 16 times a day（P>0.05）, (298.8±34.6) ml （P<0.01）, and (28.5±18.5) ml （P<0.01）, respectively. Ultrasonic inspection discovered that 12% patients appeared ureterectasia and hydronephrosis in group of spinal cord injury, but none in group of stroke. ConclusionThere is significant difference of urinary dysfunction between patients with spinal cord injury and stroke, which need different management to protect their upper urinary tract.

Objective Random allocation concealment is important in ensuring high-guality randomized controlled clinical trial.In this paper , we aimed to design a more convenient and effective two couplet random allocation method through improving the random allocation concealment technology which uses the envelope method . Methods According to the randomized sequence , a two-couplet random allocation should be prepared for every subject and bound into a book in order , which named random assignment book with cover and instructions .The first couplet is to collect the enroll information and the second couplet is to show the allocation informa -tion.The serial numbers of the two couplets which around sealant are the same , and leave blank at the same areas of the two couplets for signing the enter information .The content of the first couplet can be completely copied to the second couplet .In order to avoid expo-sing the allocation information in advance , the back of the second couplet should be black-printed. When the subjects are sure qualified, the researchers selected the corresponding two couplet in a sequential order .Exposing the allocation infromation in the second couplet, and the subjects will be allocated to the group designated on the second couplet .This random allocation book should be entrusted to professional printing mechanism ,printing according to the random assignment sequence table and in the strict quality control .For the multicenter clinical trials , it can be printed in parts . Results The method has been implemented in nearly ten randomized controlled trials and obtained the consistent high praise . Conclusion The random allocation book method is easy to produce , simple operation and convenient in monitoring , which can effectively achieve the random allocation concealment in a clinical trial as well as having a sig -nificantly practical value in ensuring the quality of randomization .

OBJECTIVE To investigate the transgenerational effect of neuroendocrine metabolic programmed alteration in adult intrauterine growth retardation (lUGR) offspring rats with prenatal nicotine exposure. METHODS Pregnant Wistar rats were administered daily with nicotine (2 mg.kg-1 ) by sc from gestational day 11 until delivery. F1 offspring was fed with a standard diet before four groups in F2 were set up according to the cross-mating between F1 normal adult rats and nicotine-induced lUGR adult rats. CC group was mated by F1 normal adult rats, CN group by F1 normal adult male rats and lUGR adult female rats, NC group by F1 lUGR adult male rats and normal adult female rats, while NN group was mated by F1 lUGR adult rats. F2 adult rats were subjected to a fortnight ice water swimming stimulus. Blood samples were collected before and after stress and then detected for the levels of adrenocortico-tropic hormone ( ACTH), corticosterone ( CORT), glucose, triglycerides ( TG) and total cholesterol (TCH). RESULTS Before stress, the level of serum CORT in F2 male rats of NN group was decreased to 73.9% of that of the CC group (P<0.05),while the level of serum TG in F2 male rats of CN and NC groups was increased to 1.43 and 1.52 times that of the CC group, respectively ( P<0.05). Meanwhile, the level of serum TG in F2 female rats of CN, NC and NN groups was increased to 1.71, 1.80 and 1.81 times that of the CC group, respectively (P<0.05). After stress, the serum CORT gain rate in F2 male rats of CC group was -1.67%, but was 36.0% in NN group. The serum glucose level in male NC group and in female CN group was increased to 1.61 and 1.62 times that of the corresponded CC groups, respectively (P<0.01). Furthermore, the serum TG gain rate in F2 rats of each nicotine group was decreased markedly in comparison with their corresponding controls (P<0.05), ie, the serum TG gain rates in F2 male rats of CN, NC and NN groups were decreased to 46.4%, 16.7% and 7.7% of the CC group, while the serum TG gain rates in F2 female rats of these groups were decreased to 20.6%, 4.0% and 8.4% of the CC group, respectively. Compared with CC group, TCH level of females and males in NN group was decreased by 40.5% and 21.9%(P<0.01) before stress, respectively, and the TCH gain rate of females in NN group was increased by 49.7%(P<0.05) after stress. CONCLUSION The reproductive and developmental toxicities and the neuroendocrine metabolic programming alterations induced by prenatal nicotine exposure are transgenerated to F2 offspring and these effects exhibit gender and parental differences.

OBJECTIVE:To explore the genome-wide methylation differences between coronary heart disease (CHD) patients and healthy volunteers,and to investigate the relationsip of DNA methylation with CHD from epigenetics. METHODS:In case-control study,subjects were divided into CHD group(50 cases)and health control group(50 cases). DNA of 2 groups were sequenced with methylated DNA immunoprecipitation sequencing technology. The genome-wide methylation differences were analyzed and compared between 2 groups. RESULTS:The number of methylation peak in CHD group was higher than health group,with statistical signfi-cance(P<0.05). The methylation peak mainly distributed in 5'UTR,Intron functional elements. The number of reads in AQP1,SHB and other gene promoters in CHD group were lower than health group,and its methylation level decreased. The number of reads in GRK5 and serveal gene promoters on chrX in CHD group were higher than helath group,and its methylation level increased,with sta-tistical significance(P<0.01). CONCLUSIONS:The genome-wide methylation level of CHD patients are higher than those of healthy volunteers. The occurence of CHD is possibly associated with the change of methylation level of related gene promoters.

Objective To investigate the diagnostic value of endoscopic ultrasonography (EUS) for duodenal cysts.Methods Clinical manifestations, results of conventional gastroscopy and EUS, as well as follow-up, of patients with duodenal cysts were retrospectively analyzed.Results A total of 105 patients with duodenal cysts presented with no lesion-related symptoms, but displayed characteristic imaging changes under EUS, which could reveal the origin, size and nature of duodenal cysts, and differentiate it from other submucosal lesions.A maximum follow-up of 5 years showed no changes in duodenal cysts.Conclusion Duodenal cyst is a benign disease, and EUS plays a very important role in diagnosis of the disease.

BACKGROUND: Total glucosides of paeony, effective component extracted from peony, has good inflammatory and analgesic effect. OBJECTIVE: To investigate the curative effect and side effect of total glucosides of paeony combined with methotrexate and sulfasalazine in the treatment of ankylosing spondylitis. DESIGN: Randomized and controlled observation SETTING: Department of Rheumatology , Guangdong Hospital of Traditional Chinese Medicine PARTICIPANTS: Totally 80 inpatients with ankylosing spondylitis hospitalized in the Clinic of Department of Rheumatology, Guangdong Hospital of Traditional Chinese Medicine from June 2003 to April 2004 were involved. The patients were randomly divided into 2 groups with 40 patients in each group. Informed consent was obtained. METHODS: Experimental group: 2 capsules of total glucosides of peony was taken orally, three times per day; methotrexate 10 mg/time, once per week; sulfasalazine 0.5 g/time, three times per day. Control group:methotrexate and sulfasalazine were taken orally and the dosage and method were the same as those in the experimental group. Two groups all used the same NSAID (Nimesulide) , 0.1 g/time, twice per day. The period of the treatment was 3 months. Evaluation of spinal column function and laboratory examination was performed before treatment and 4, 8 and 12 weeks after treatment. MAIN OUTCOME MEASURES: Primary outcomes: Bath ankylosing spondylitis activity index, Bath ankylosing spondylitis function index [1-2],duration of morning stiffness, systemic pain and spinal pain on a four point Likert scale, overall assessment of patient and physician on a four point scale. Secondary outcomes: ①erythrocyte sedimentation, C-reaction protein,Schober test, chest expansion, Occiput to wall distance and finger to floor distance.② Adverse events and side effects. RESULTS: The observation of 38 patients in the experiemtnal group and 37 patients in the control group was completed. ①Result of Bath ankylosing spondylitis activity index, Bath ankylosing spondylitis function index,duration of morning stiffness, pain and spinal pain on a four point Likert scale, overall assessment of patient and physician on a four point scale:The indices at week 4, 8 and 12 werevmore significantly decreased than those before treatment in each group (P ＜ 0.05); the Bath ankylosing spondylitis activity index, pain and spinal pain on a four point Likert scale,overall assessment of patient and physician on a four point scale at week 4and all the indices at week 8 and 12 were more significantly decreased than those in the control group (P ＜ 0.05). ② Evaluation result of Erythrocyte sedimentation rate (ESR) and C reaction protein, Schober test, chest expansion , occiput to wall distance and finger to floor distance: Each index at week 4, 8 and 12 in the experimental group were significantly decreased than those before treatment (P ＜ 0.05), those at week 8 and 12 in the control group were more significantly decreased than those before treatment (P ＜ 0.05). ESR , C reactive protein (CRP) , chest expansion and finger to floor distance at week 12 in the control group were more significantly decreased . ③ Adverse events and side effects: All adverse reactions occurred transiently during the course of disease in the two groups. Undisposed or after having taken live-protective medicine, all patients recovered.Drug was not withdrawn in any case.The incidence of adverse reaction in the experimental group was lower than that in the control group [10％ (3/30),57％(17/30) ,P ＜ 0.05]. CONCLUSION: Combination of total glucosides of paeony, methotrexate and sulfasalazine has an enhanced effect and better safety without special adverse reaction in the treatment of ankylosing spondylitis.

Objective To evaluate the efficacy and safety of retroperitoneal laparoscopic pyelolithotomy ( RLP) combined with holmium laser lithotripsy under flexible cystoscopy in the treatment of complicated nephrolithiasis. Methods The retrospective analysis was made on the clinical data of 37 patients who underwent RLP and holmium laser lithotripsy under flexible cystoscopy for complicated nephrolithiasis from January 2013 to January 2014. The clinic parameters involved basic data of patients,operational time,blood loss,post-operative hospital stay,the status of stone-free,perioperative complications,and the follow-up data of patients were observed. Results No patient was converted to open surgery. The mean stone size was (2. 8 ± 0. 9) cm in diameter,operational time was (89 ± 24) min,blood loss was (21. 3 ± 7. 7) mL,post-operative hospital stay was (6. 8 ± 1. 7) d,the stone removal rate in one session was 94. 6%. One case occurred urinary leakage,1 case occurred fever after operation,who were all recovered through conservative treatment. All cases were followed up at the sixth months after operation. Conclusion RLP combined with holmium laser lithotripsy under flexible cystoscopy is effective and safe for the treatment of com-plicated nephrolithiasis.

Background and purpose: The proportion of hepatocellular carcinoma (HCC) patients with cirrhosis and portal hypertension (PHT) is high. PHT may increase the risk of hemorrhage and liver failure. The aim of this study was to evaluate the safety and efifcacy of liver resection (LR) for patients with HCC and PHT. Methods:From 2006 to 2010, a total of 564 HCC patients with Child-Pugh A liver function and with (78) or without PHT (486) were retrospective analyzed. Complications after surgry, 30 and 90-day mortality, overall survival (OS), and recurrence rates were compared between the two groups. Propensity score analysis was also conducted to reduce confounding bias between the groups. Moreover, subgroup analysis based on tumor stage and the range of resection was carried out. Results:The complications after surgry, 30 and 90-day mortality of patients with PHT were signiifcantly higher than those without PHT, before and after propensity analysis (P<0.05). After an average follow-up of 32.1 months, the 1-, 3-, 5-year OS of patients with PHT (75%, 45%and 32%) were signiifcantly worse than those without PHT (90%, 66%and 48%;P<0.001). However, the 1-, 3-, and 5-year recurrence rates were similar between PHT group (31%, 57%, and 73%) and without PHT group (26%, 53%, and 67%;P=0.53). Moreover, the OS of the two groups were similar after propensity analysis, and for patients with early stage HCC and those who underwent minor hepatectomy (all P>0.05). Conclusion: PHT is not the contraindication of LR for patients with HCC. Those with early stage HCC and who underwent minor hepatectomy are the best candidates to LR therapy.

Objective To study the effects of cryopreservation on the immunogenicity of human umbilical vein endothelial cells(HUVEC).Methods HUVEC were isolated ex vivo and cryopreserved.Lymphocyte stimulation index(SI)was analyzed by MTT in lymphoeyte-endothelial cell co-culture.Both HLA-ABC and HLA-DR antigen expression on fresh or cryopreserved HUVEC,and the effects of IFN-γ treatment on HLA antigen expression in both groups were determined by using flow cytometry.Results No difference in SI was observed between fresh prepared and cryopreserved HUVEC(1.716±0.181 vs 1.686±0.145,P>0.05).The percentage of HLA-ABC expression was(96.6±1.9)%and(96.0±1.4)%in fresh and cryopreserved HUVEC(P>0.05),and the mean intensity for HLA-ABC expression was 84.1±5.7 and 82.4±4.8 in fresh and cryopreserved HUVEC(P>0.05),respectively.However,no HLA-DR expression was observed in both groups.When treated with IFN-γ,HLA-ABC expression was significantly up-regulated,and HLA-DR expression was induced in a dose-dependent manner.No significant difference was found in the HLA-ABC expression between fresh and cryopreserved HUVEC(P>0.05),while the HLA-DR expression in cryopreserved HUVEC was remarkably lower than in fresh HUVEC with the increase of IFN-γ(P<0.01).Conclusion The immunogenicity of HUVEC remains stable by cryopreservation without IFN-γtreatment or treated with low concentration of IFN-γ(≤50 U/ml).However,the HLA-DR expression in HUVEC was remarkably reduced in eryopreserved cells treated with a high concentration of IFN-γ(≥100 U/ml).These data indieated that the effects of cryopreservation on immunogenicity of HUVEC may result from the decreased responses of HLA-DR expression by the stimulation of IFN-γ treatment.