Objective To discuss the treatment of superior mesenteric arterial thrombo-embolism through superior mesenteric arterial angiography and transcatheterizing thrombolysis. Methods After diagnosis of superior mesenteric arterial thrombo-embolism through percutaneous transluminal angiography, the embolism was cleared out and then the inner tip of catheter was implanted within embolus for slow continuously thrombolysis with the outer tip of catheter connected to the infusion pump. Result Four cases succeeded with thrombolysis; 3 cases were performed with partial small intestinal excision with necrosis. Two cases healed. One case died of heart failure postoperatively and another case died of massive digestive tract hemorrhage. Conclusions Angiography can help to confirm the position of superior mesentery arterial thrombosis and the extent of intestinal ischemia. Early intrathrombus catheterization for clear out and thrombolysis can obtain satifactory prognosis.

Central post-stroke pain refers to pain resulting from a primary lesion or dysfunction of the central nervous system after a stroke.The prevalence of central post-stroke pain varies from 8％ to 46％.This article reviews the definition,epidemiology,pathophysiology,clinical features,and treatment of central post-stroke pain.

Purpose:To study the clinical value of percutaneous placement of biliary stents tbr treatment of malignant biliary obstruction.Materials and methods:A total of 58 stents were placed pereutaneously in 53 patients for palliative of malignant biliary obstruction. Results:The success rate of stent implantation was 98.1%(52/53).The difference between post-and pre-operation in the serum total bilirubin level of 52 patients was 182?67 ? mol/L,P

Objective To investigate the selection and effectiveness of interventional treatment for different types of Budd-Chiari syndrome (BCS). Methods A total of 138 cases of BCS were divided into 4 types (type Ⅰ, membranous stenosis and obstruction of the inferior vena cava; type Ⅱ, segmental stenosis of the inferior vena cava; type Ⅲ, segmental obstruction of the inferior vena cava; type Ⅳ, patent inferior vena cava) and 9 subtypes according to results of angiography of the hepatic vein or the inferior vena cava. Therapeutic methods included percutaneous transluminal angioplasty (PTA) of the inferior vena cava and stent placement by way of the femoral vein, right cervical vein or subclavian vein, and PTA of the hepatic vein by way of the transhepatic approach, right cervical vein or inferior vena cava. Results The success rate was 100% (83/83) in type Ⅰ patients, 75.0% (9/12) in type Ⅱ patients, 81.6% (31/38) in type Ⅲ patients, and 60% (3/5) in type Ⅳ patients. One patient died (0.7%, 1/138). Complications occurred in 4 patients (2.9%, 4/138), including 2 cases of pericardial injury, 1 case of stent detachment, and 1 case of hepatic hemorrhage. Follow-up observations in 126 successful cases for 3~96 months (mean, 26 months) showed 8 recurrent cases, 2 of which expired, and 2 fatal cases because of hepatocarcinoma. Conclusions Interventional therapy, as a simple, safe and effective minimally invasive method, is the first choice for the treatment of BCS.

OBJECTIVE: To explore the relationship between metabolic syndrome( MS) and occupational stress among workers in high altitude area. METHODS: A cross-sectional study was conducted in 940 workers as research subjects who were engaged in petroleum smelting,thermal power generation and financial management et al. in high altitude area. A questionnaire survey was conducted using the Occupational Stress Inventory-Revised for occupational stress, The occupational health examination was performed to measure waist circumference,blood pressure,blood sugar and blood lipids. RESULTS: The abnormal rates in obesity,triglycerides,high-density lipoprotein,blood pressure and fasting blood glucose were 28. 3%,16. 3%,14. 3%,13. 3% and 6. 5%, respectively. The detection rate of MS was 5. 0%( 47/940). The multivariate logistic regression analysis showed that the risk of elevated MS decreased with the increased of occupational stress level( P < 0. 05),and the risk of elevated MS increased with the increased of occupational stress reaction severity( P < 0. 05),after adjusting the confounding factors of gender and labor nature. CONCLUSION: The higher occupational stress reaction of the workers in high altitude area,the higher the risk of MS.

OBJECTIVE: To comprehend the status of knowledge-attitude-practice( KAP) and its effect on blood lead in workers exposed to lead.METHODS: Three hundred and fifty-one first-line lead exposed workers in the smelting industry were chosen as study subjects by cluster sampling method.Blood lead levels in peripheral venous blood were detected.Questionnaire survey was conducted by self-compiled Questionnaire of Knowledge-attitude-practice on Occupational Health in Lead Workers.RESULTS: Among the study subjects,145 workers had abnormal blood lead level( ≥600 μg/L),the abnormal rate was 41.3%.The correct scoring rate in occupational knowledge,attitude,and practice were 25.1%,45.3% and 15.7%,respectively.Multivariate logistic regression analysis results showed that the four risk factors of high blood lead level were wearing no personal protective equipment,not bathing and changing clothes before returning home,not gargling and washing hands before meals,smoking and eating in workplace.CONCLUSION: Poor occupational behaviors can increase the risk of high blood lead level in lead exposed workers.

Helminth infections may trigger host innate and adaptive immune responses. Group 2 innate lymphoid cells (ILC2) are an important factor involved in type 2 immune responses, and produce a large number of T helper 2 cell (Th2) cytokines following stimulation by interleukin (IL)-25, IL-33 and thymic stromal lymphopoietin (TSLP), which play a critical role in parasite clearance and tissue repair. Following helminth infections, autocrine factors, mast cells, enteric nervous system and Th2 cells have been recently found to be involved in regulation of ILC2. Unraveling the role of ILC2 in immune response against helminth infections is of great value for basic research and drug development. This review summarizes the research progress on ILC2 and its role in helminth infections.

Objective To analyze the sequences of the cytochrome C oxidase subunit I (Cox1) gene of various Echinococcus granulosus genotypes that are currently recorded in the GenBank database, so as to investigate the genetic variation and differentiation of the E. granulosus genotypes across the world. Methods The sequences of the Cox1 gene of various E. granulosus genotypes that are currently recorded in the GenBank database were collected, and the same sequences of the Cox1 gene identified from a region were excluded. The mutation sites among the Cox1 gene sequences were identified and a phylogenetic tree was created based on the Cox1 gene. Results Transversion mutation was the predominant type of mutation in the Cox1 gene of E. granulosus. The same Cox1 gene sequence was found in E. granulosus G1, G6 and G7 genotypes isolated from various geographical locations across the world, with the corresponding GenBank accession numbers of KY766891, MH300971 and MH301007, respectively. Phylogenetic analysis revealed that E. granulosus G10 genotype had a remarkable geographical aggregation. Conclusions E. granulosus G1, G6 and G7 genotypes have primitive Cox1 gene sequences. There is a geographical aggregation of the E. granulosus G10 genotype in the phylogenetic tree, which has a tendency towards reproductive isolation.

Objective To investigate the effect of short hairpin RNA(shRNA)-mediated pleomorphic adenoma gene like-2 (PALAG2) silencing on the malignant behavior of hepatocellular carcinoma cells and its mechanism. Methods Real-time PCR and Western blotting were used to detect the expression level of PLAGL2 in liver cancer tissues and adjacent tissues. Hepatoma cells MHCC97-L were cultured in vitro, the lentiviral vector plasmid PLAGL2-shRNA and control NC-shRNA were constructed, transfected into MHCC97-L cells, and stable transfected strains were selected with puromycin. CCK-8 and Transwell chamber assay detected the proliferation activity and the number of migration and invasion of MHCC97-L cells after silencing PLAGL2. Western blotting was used to detect the expression of p-PI3K and p-Akt proteins. The PI3K/ Akt signaling pathway activator was used to treat MHCC97-L cells to detect cell proliferation, migration and invasion. Results The expression of PLAGL2 was significantly increased in liver cancer tissue (P < 0. 05). Transfection of 9 strains of MHCC97-L cells with PLAGL2-shRNA could significantly reduce the expression level of PLAGL2, and the ability of proliferation, migration, and invasion of MHCC97-L cells was also weakened (P<0. 05), and the expression levels of p-PI3K, and p-Akt were inhibited (P<0. 05), PI3K/ Akt activator could obviously reverse the above phenomenon. Conclusion shRNA lentiviral vector pathway can effectively silence the expression of PLAGL2 gene in hepatocarcinoma cells. Silencing of PLAGL2 can significantly inhibit the malignant behavior of proliferation, migration and invasion of hepatocarcinoma cells, and its mechanism may be related to the inhibition of PI3K / Akt signaling pathway activation.

Objective This study was undertaken to evaluate the safety of the polyglycolic/polylactic acid(PGLA)-coated Matrix detachable coils(Matrix) and analyze factors which may relate to the recanalization rate of the Matrix coils in the treatment of intracranial aneurysms. Methods 75 patients underwent 79 aneurysm treatments with Matrix coils from May 2003 to July 2005 were retrospectively investigated.Morphological changes were compared postoperatively with last-follow-up digital subtraction angiography(DSA)by using the Raymond scale. We defined incomplete recanalization or stable aneurysms as uncured , while those of progressive occlusion or complete occlusion aneurysms demonstrated on the last-follow-up imagings as cured. We also utilized Cox model for analyzing the relationships between factors including age, gender, degree of aneurysmal occlusion, stenting, aneurysm neck size, aneurysm maximum size and Matrix coils length(%)and the long-term angiographic follow-up results. Results The correlative surgical complications rate with Matrix coils was 13.3%. The total rate of recanalization was 11.4%. Large aneurysms treated with combined stenting got 40% recanalization. No statistic relationships were shown between the factors forementioned and the recanalization rate, but progressive occlusion was observed in 11(61%)incompletely treated aneurysms. Conclusions Matrix detachable coil technique is safe for intracranial aneurysm and would further decrease the recurrence of large aneurysm with combination of stenting but long term efficacy needs further follow-up and large scale randomized control study.