Endoscopy ; instrumentation ; methods ; trends ; General Surgery ; methods ; Humans

Dermatomyositis ; complications ; Humans ; Lung Diseases, Interstitial ; diagnosis ; etiology ; therapy

Objective To study a rapid method for determination of trace formaldehyde in drinking water by oscilloscopic polarography.Methods In the base solution of0.01mol/L H 3 PO 4 ,the reaction product of formaldehyde and phenylhydrazine hydrochloride on the drop mercury electrode revealed a sensitive second order derivative polarographic wave at a pick electric potential-0.76V(VS?SCE).The optimum conditions and interference by other coexisting ions were analyzed.Results The de-tection limit,linear range,recovery rate,relative standard deviation(RSD)of the method were0.002mg /L,0.005-0.25mg /L,94.0%-103.0%,and0.05).Conclusion The method was simple,rapid,sensitive and highly specific.The analytical speed was about 50-60samples /h,which was suitable for the determination of trace formaldehyde in drinking water.

ObjectiveTo study the expression of EZH2 gene in cervical squamous carcinoma and its clinicopathologic significance. MethodsThe expression of EZH2 mRNA was detected in 21 samples of normal cervical tissue, 27 samples of CIN tissue and 48 samples of cervical squamous carcinoma tissue by RT-PCR. And the relationship between EZH2 expression and the clinical pathological characteristic was analyzed. ResultsThe level of EZH2 mRNA in cervical squamous carcinoma tissues(1.67±0.01)were significantly higher than that in the normal cervical tissues (0) and CIN tissues (0.36±0.02) (P ＜ 0.01).There was no correlation between EZH2 and ages (P ＞ 0.05), while the expression of EZH2 was highly correlated with histologic stage,clinical stage,muscular invasion depth and lymph node metastasis of cervical squamous carcinoma (P ＜ 0.01).ConclusionThe over-expression of the EZH2mRNA may play an important role in the pathogenesis and progression of cervical squamous carcinoma,suggesting that EZH2 might be a new biomarker for diagnosing cervical squamous carcinoma.

Objective To investigate self-management status of the DM patients,and to confirm scientifically the importance of emphasising diabetes education in the DM patients.Methods With the questionnaire on self-management status & the possessed degree of DM knowledge and the method of consulting the medical records,697 DM patients were investigated.Results There were about 47.20% of patients who did not take glycemic examination in one year.Awareness rates for the standards of blood lipids and the HbA_1C were 6.5% and 5.5% respectively.And the awareness rates for nutrition treatment principle and scientific mode of physical exercise were 30.3% and 21.8%,respectively.The prevalence of The DM complications was the highest in the cadre(29.52%) and the lowest in the peasants(3.59%).Conclusion The investigation revealed the self-management is imperfect and the DM knowledge in DM patients is insufficient.It should be accentuated for patients to take health education of DM knowledge and improve their level of self-management.

Hepatitis B-related acute-on-chronic liver failure (ACLF) is a severe clinical syndrome characterized by jaundice, coagulopathy, ascites and hepatic encephalopathy and with a high mortality rate of 65% to 93%. It involves significant ethical issues when a randomized, double-blinded, placebo-controlled clinical study is conducted to such a serious disease. Therefore, a prospective cohort study design was utilized to explore a new treatment modality of applying integrated traditional Chinese and Western medicine.

Objective To investigate the effect of 3 concentrations of sevoflurane pretreatment on acute lung injury induced by endotoxin in rats. Methods Thirty-six male SD rats were randomly divided into 6 groups:a control group(Group A), a sevoflurane group(Group B), a 3.6% sevoflurane pretreatment group(Group C), a 2.4% Sevoflurane pretreatment group(Group D), a 1.2% sevo sevoflurane pretreatment group(Group E), and lipopolysaccharide (Group F).The rats were killed 6 h after lipopolysaccharide (LPS) or saline injection.Histological examinations of the lung tissues were performed with light microscope. Lung wet/dry weight (W/D) ratio, myeloperoxidase (MPO) activity, and intercellular adhesion molecule 1 (ICAM-1) mRNA expression were assayed. Results Introvenous LPS significantly aggravated lung tissue damage,increased lung W/D ratio, MPO activity, and lung ICAM-1 mRNA expression compared with the control group(P＜0.05). Precondition with 2.4% sevoflurane significantly attenuated the above mentioned changes induced by LPS (P＜0.05). The 3.6% LPS (Group C) significantly attenuated lung tissue damage and decreased MPO activity,lung ICAM-1 mRNA expression compared with the Group F (P＜0.05),but no significant change in lung W/D ratio was seen (P＞0.05). MPO activity was significantly decreased in Group E (P＜0.05), but lung W/D ratio and lung ICAM- 1 mRNA expression had no significant changes (P＞0.05).Conclusion Precondition with 2.4% sevoflurane can reduce LPS induced lung injury in rats. Decreased expression of ICAM-1 and less accumulation of neutrophils were participated in its mechanism.

Objective To study the relationship between serum leptin and fibrosis in chronic hepatitis B incorporate alcoholic liver disease(CHB + ALD) patients.Methods Select 17 male patients with CHB+ALD,15 male patients with liver cirrhosis(LC) ,19 male patients with chronic hepatitis B(CHB) and 12 male healthy persons as normal control(NC).Serum leptin is detected by ELISA in 63 patients.Serum levels of fibrosis markers(HA,LN,PC HI ,IV-C) are determined at the same time.Results Serum leptin level in CHB +ALD are significantly higher than those of the NC(6.79±24.12) μg/L vs (4.27±7.18 ) μg/L (P＜0.05).There is no significant difference between patients with CHB and the NC.The four fibrosis markers in CHB + ALD patients are significantly higher than that of men both in the CHB and the NC.There are significant correlations between both serum leptin level and quadrinomial fibrosis markers(P＜0.05 or P＜0.01 ).Conclusion That serum leptin level is one aecelerate gene in the fibrosis formation in patients with CHB+ALD.

Objective To investigate radiation dose diffent type of anesthesia affected radiation dose when we do interventional therapy for child patent ductus arteriosus (PDA).Methods From 201 1 to 2014,we collected 50 children(3-6 years old)with PDA which received interventional therapy were included in the study.They were divided into two groups:group A (25 cases,male/fe-male=7/18,mean weight=1 5.32 kg±2.41 5 kg)underwent interventional therapy of PDA under general anesthesia,and group B (25 cases,male/female=13/12,mean weight=1 6.40 kg±2.056 kg)using local anesthesia.The surgery were operated by the same doctor,we used DSA children cardiovascular film AE mode (ped CARD)to monitor the surgery,image frames 1 5-30 f/s,used the non-ionic contrast agent (Iodixanol 320 mg I/mL)and recorded the child cumulative incidence of skin surface dose (AK),dose area product(DAP),and time of fluoroscopy,and do statistical analysis.Results All 50 cases were performed the surgery successfully. There were no significant difference of age,weight and gender between groups (age:t=1.924,P =0.06;weight:t =1.703,P =0.095;gender:χ2 =3.00,P =0.083).The cumulative incidence of skin surface dose (AK),dose area product (DAP)and time of fluoroscopy were (0.061±0.025)Gy,(5.08±2.19)Gy·cm2 and (3.15±1.16)min in A group,and (0.094±0.046)Gy,(8.41±3.587)Gy·cm2 , (6.86±3.27)min in B group.The sequence and image number of two groups were same.There were significantly differences of cumulative incidence of skin surface dose (AK),dose area product (DAP)and time of fluoroscopy between two groups (AK:t =3.152,P =0.003;DAP:t =3.957,P =0.000;time of fluoroscopy:t =5.346,P =0.000).The radiation doses of A group significantly lower than B group,compared with B group,the radiation dose were 40 percent [(1-5.08/8.41)%]lower in A group,the 1.1 7 times discrepancy of time of fluoroscopy between two group [(3.1 5-6.86)/3.1 5].Conclusion Radiation dose is associated with type of anesthesia. Compared with local anesthesia,radiation dose reduced 40% using general anesthesia during interventional therapy for PDA.

Objective To understand the relationship between clinical manifestations and Kashin-Beck disease(KBD) and their contribution to diagnosis of KBD and to construct the diagnosis model for KBD in adolescents.Methods A total of 2248 subjects under the age of 18 were collected from 6 KBD endemic and 1 non-KBD areas of the Shaanxi province in China.Analysis of 32 indicators,including gender,age,and KBD clinical indicators.Indicators of the distribution of measurement data between the two groups using t test and analysis of variance,x2 test with count data,multi-category ordered response variables Logistic regression analysis for model building.Results It showed the KBD prevalence rate in adolescent had an increasing tendency with age.Analysis of indicators between the two groups,in addition to the age factor(P ＜ 0.05),the difference of ankle pain,knee pain,wrist movement disorder and other 5 indicators(P ＜ 0.05) and the last bend,elbow movement disorder,syndactyly and other 9 indicators(P ＜ 0.01 ) were statistically significant.Sixteen clinical and radiographic features in the clinical manifestations were significantly related with the clinical severity grading with KBD(P ＜ 0.01 ).Four models on the diagnostic indictors were constructed by cumulative logit model for adolescent KBD (-21ogL,Score,Wald x2 test,P ＜ 0.01 ).Conclusions The establishment of the diagnostic model based on their contribution of the joint involvement in systemic performance-related indicators has an important role for clinical diagnosis of KBD.