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.

Adult ; Axilla ; Breast Neoplasms ; pathology ; surgery ; Carcinoma, Ductal, Breast ; pathology ; secondary ; surgery ; Carcinoma, Intraductal, Noninfiltrating ; pathology ; secondary ; surgery ; False Negative Reactions ; Female ; Humans ; Lymph Node Excision ; Lymph Nodes ; pathology ; surgery ; Lymphatic Metastasis ; Mastectomy ; methods ; Reproducibility of Results ; Sentinel Lymph Node Biopsy ; methods ; Technetium Tc 99m Sulfur Colloid

Adolescent ; Adult ; Aged ; Electrodes ; Epistaxis ; surgery ; Female ; Hemostasis, Endoscopic ; methods ; Humans ; Male ; Middle Aged ; Young Adult

This study is to establish a cell-based model targeting to neuraminidase (NA) of the 2009 H1N1 influenza A virus. NA is an influenza virus structural protein with enzymatic activity of the cleavage of HA-sialic acid interaction to release new viral particles from cells. A model of HIV-1 (pNL4-3.Luc.R(-)E(-)) based pseudovirions packed with HA [hemagglutinin, A/VietNam/1203/2004 (H5N1)] and NA [A/California/04/2009 (H1N1)] was established to evaluate compounds activities on NA function. The viral release can be blocked by neuraminidase inhibitors, oseltamivir and oseltamivir carboxylate, with IC50 of (61 +/- 31) nmol L(-1) and (5.5 +/- 2.9) nmol L(-1) respectively. A point mutation of H275Y on NA leads oseltamivir-resistance. This corresponding mutation was introduced into the system which was also confirmed by oseltamivir and oseltamivir carboxylate.

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 evaluate the efficacy of endovascular interventional minimally invasive techniques in treatment of acute brachial artery injury.Methods A retrospective case series study was designed to analyzed data of 16 cases (11 males and 5 females) sustaining acute brachial artery injury treated from March 2011 to August 2016.Mean age was 47.9 years (range,27-66 years).Left upper extremity vascular injury occurred in 7 cases and right upper extremity vascular injury occurred in 9.There were 13 cases of arterial intima injury and 3 of arterial pseudoaneurysm.All patients underwent endovascular therapy including stent implantation and balloon dilatation.Angiography was used to evaluate the repair of brachial artery and the operation time was recorded.Improvements of distal limb arterial pulse and limb ischemic symptoms were observed,and the patients who were followed up with stent lumen stenosis more than 50％ received endovascular treatment again.Results The procedures was successful in all patients,with operation time of 30-75 minutes (mean,45 minutes).After the insertion of a stent,recovered brachial artery blood flow and disappeared pseudoaneurysm were observed on angiography,without occurrence of stent stenosis or contrast extravasation.Symptoms of local pain and numbness were alleviated,and blood supply of the distal brachial artery was improved after operation.All patients were followed up for 3-36 months(mean,16.7 months).The false aneurysm did not recur.Two cases of stent stenosis more than 50％ had a second balloon dilation procedure and the blood flow returned to normal.Stent patency was found in 14 cases with stent stenosis of less than 50％.During the follow-up period,no ischemic necrosis,displacement of the stent or stent fracture were found.Conclusion For acute brachial artery injury,endovascular management exhibits higher technical success rate and good clinical outcome with a low incidence of complications.

Objective To study the effects of rAAV2/1-Acrp30 on sICAM-1 and sVCAM-1 level as well as NF-?B expression in GK rats with diabetic arteriosclerosis so as to explore the effect of adiponectin on diabetic macroangiopathy. Methods A total number of 30 atherosclerotic GK rat models were randomly divided into three groups:① Model group one (M1):hind limb intramuscular injection of normal saline; ② Model group two (M2):hind limb intramuscular injection of vacuity virus rAAV2/1; ③ Treatment group (T):hind limb intramuscular injection of rAAV2/1-Acrp30 at a dose of 1?1012mg/L. After 8 weeks' treatment,the rats were killed,and serum sVCAM-1 and sICAM-1 level as well as aortic NF-?Bp65mRNA expression were measured in each group. Aortic NF-?Bp65mRNA expression was measured by RT-PCR.Results Compared with those in control model groups (M1 and M2),sVCAM-1 and sICAM-1 levels were decreased significantly in the treatment (T) group (P