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1344篇 您的检索式:作者名="HuA H"
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1Effects of combined splenorenal shunt devascularization and devascularization only on hemodynamics of the portal venous system in patients with portal hypertension显示文摘Shunt and devascularization have totally different effects on hemodynamics of the portal venous system , and the actual results of combined shunt and devascularization should be determined by more clinical observations. This study aimed to evaluate effects on hemodynamics of the portal venous system after conventional spleno-renal shunt combined with pericardial devascularization and pericardial devascularization only. METHODS: In 20 patients who had received conventional splenorenal shunt combined with pericardial devascularization(CP) and 18 who had received pericardial devascularization and splenectomy (PCDV), hemodynamic parameters of the portal venous system were studied by magnetic resonance angiography 1 week before and 2 weeks after operation. Free portal pressure was detected continuously by a transducer during the operation. RESULTS: Compared to the preoperative data, a decreased flow of the portal vein (PVF) (563.12±206.42 ml/min vs 1080.63±352.85 ml/min, P<0.05), a decreased diameter of the portal vein (PVD) (1.20±0.11 cm vs 1.30±0.16 cm, P<0.01 ), a decreased free portal preasure ( FPP ) (21.50±2.67 mmHg vs 29.88±2.30 mmHg, P<0.01) and an increased flow of the superior mesenteric vein (SMVF) (1105.45±309.03 ml/min vs 569.13±178.46 ml/min, P < 0.05) were found in the CP group after operation; a decreased PVD (1.27±0.16 cm vs 1.40±0.23 cm, P<0.05), a decreased PVF (684.60±165.73 ml/min vs 1175.64±415.09 ml/min, P<0.05), a decreased FPP (24.40±3.78 mmHg vs 28.80±3.56 mmHg, P<0.05) and an increased SMVF (697.91+121.83 ml/min vs 521.30±115.82 ml/min, P<0.05) were found in the PCDV group. After operation, the PVF of CP group (563.12±206.42 ml/min vs 684.60±165.73 ml/min, P>0.05) was not decreased significantly while FPP (21.50±2.67 mmHg vs 24.40±3.78 mmHg, P< 0.01) was decreased significantly as compared with that of the PCDV group. PVF and FPP could be decreased by both surgical procedures, but the effect of decreasing FPP is much better in the combined procedures than in PCDV. Since there is no significant difference in PVF between the two groups, the combined procedures could integrate advantages of shunt with those of the devascularization, maintaining the normal anatomy structure of the hepatic portal vein, and should be one of the best choices for patients with PHT when surgical interventions are considered.Department of General Surgery, Renji Hospital, Shanghai 200127, China (Cao H, Hua R and Wu ZY) 2005Hepatobiliary & Pancreatic Diseases International2005,4,3:18
2miR-182参与调节胶质母细胞瘤的凋亡、生长和分化(英文)显示文摘Glioblastoma multiforme(GBM)is a lethal,therapy-resistant brain cancer consisting of numerous tumor cell subpopulations,including stem-like glioma-initiating cells(GICs),which contribute to tumor recurrence following initial response to therapy.Here,we identified miR-182 as a regulator of apoptosis,growth,and differentiation programs whose expression level is correlated with GBM patient survival.Repression of Bcl2-like12(Bcl2L12),c-Met,and hypoxia-inducible factor 2α(HIF2A)is of central importance to miR-182 anti-tumor activity,as it results in enhanced therapy susceptibility,decreased GIC sphere size,expansion,and stemness in vitro.To evaluate the tumor-suppressive function of miR-182 in vivo,we synthesized miR-182-based spherical nucleic acids(182-SNAs);i.e.,gold nanoparticles covalently functionalized with mature miR-182 duplexes.Intravenously administered 182-SNAs penetrated the bloodbrain/blood-tumor barriers(BBB/BTB)in orthotopic GBM xenografts and selectively disseminated throughout extravascular glioma parenchyma,causing reduced tumor burden and increased animal survival.Our results indicate that harnessing the anti-tumor activities of miR-182 via safe and robust delivery of 182-SNAs represents a novel strategy for therapeutic intervention in GBM.Kouri FM Hurley LA Daniel WL Day ES Hua Y Hao L Peng CY Merkel TJ Queisser MA Ritner C Zhang H James CD Sznajder JI Chin L Giljohann DA Kessler JA Peter ME Mirkin CA Stegh AH 2015中华神经外科疾病研究杂志2015,14,2:14
3Polymorphisms of MTHFD,plasma homocysteine levels, and risk of gastric cancer in ahigh-risk Chinese population显示文摘Purpose:Accumulative evidence suggests that folate has a protective effect on gastric cancer. The methylenetetrahyd-rofolate dlehydrogenase(MTHFD) plays an important role in folate and homocysteine metabolisms, and polymorphisms of MTHFD may result in disturbance of the folate-mediated homocysteine pathway. The aim of this study is to test the hypothesis that genetic variants of MTHFD and plasma homocysteine levels are associated with risk of gastric cancer and modulated by genotypes of methylenetetrahydrofolate reductase(MTHFR). Experimental Design: We genotyped G1958A and T401C in MTHFD and C677T in MTHFR and detected total plasma homocysteine(tHcy) levels in a case-control study of 589 gastric cancer cases and 635 cancer-free controls in a high-risk Chinese population. Results:The variant genotypes of MTHFD 1958AA and 401CC were associated with a significantly increased risk of gastric canceradjusted odds ratio(OR), 2.05; 95% confidence interval(95% CI),1.34-3.13 for 1958AA; adjusted OR,1.43; 95% CI,1.14-1.80 for 401CC compared with 1958GG/GA and 401TT/TC genotypes, respectively. Both of the effects were more evident in the subjects carrying MTHFR 677CT/TT genotypes. The average tHcy level was significantly higher in gastric cancer cases than in controls(P < 0.01), and the upper quartile of tHcy (> 13.6 mu mol/L) was associated with an 82% significantly increased risk of gastric cancer, compared with the lowest quartile of tHcy(<= 8.0 pmol/L;adjusted OR,1.82; 95% CI,1.20-2.75). Conclusions:The strong associations between MTHFD variants and the plasma tHcy levels and gastric cancer risk suggest, for the first time, a possible gene-environment interaction between genetic variants of folate-metabolizing genes and high tHcy levels in gastric carcinogenesis.Wang, L. N Ke, Q Chen, W. S Wang, J. M Tan, Y. F Zhou, Y Hua, Z. L Ding, W. L Niu, J. Y Shen, J Zhang, Z. F Wang, X. R Xu, Y. H Shen, H. B Yi Xing 2007南京医科大学学报(自然科学版)2007,27,7:10
4Prevalence of primary Helicobacter pylori resistance to metronidazole and clarithromycin in Singapore显示文摘INTRODUCTIONEradication of Helicobacter pylori,a bacteriumresiding in stomach and causing peptic ulcer disease,can be achieved by using combination therapiesconsisting of one or two antibiotics with a protonpump inhibitor (PPI).The major antibiotics widelyused in the regimens to eradicate H.pylori aremetronidazole and clarithromycin.However,resistance to these antibiotics by H.pyloriHua JS Bow H Zheng PY Khay-Guan Y 2000World Journal of Gastroenterology2000,6,1:7
5saRNA-guided Ago2 targets the RITA complex to promoters to stimulate transcription显示文摘Victoria Portnoy Szu Hua Sharon Lin Kathy H Li Alma Burlingame Zheng-Hui Hu Hao Li Long-Cheng Li 2016Cell Research2016,26,3:6
6Nighttime sap flow of Acacia mangium and its implications for nighttime transpiration and stem water storage显示文摘Aims Nighttime sap flow of trees may indicate transpiration and/or recharge of stem water storage at night.This paper deals with the water use of Acacia mangium at night in the hilly lands of subtropical South China.Our primary goal was to reveal and understand the nature of nighttime sap flow and its functional significance.Methods Granier’s thermal dissipation method was used to determine the nighttime sap flux of A.mangium.Gas exchange system was used to estimate nighttime leaf transpiration and stomatal conductance of studied trees.Important Findings Nighttimesap flowwas substantial and showed seasonal variation similar to the patterns of daytime sap flowin A.mangium.Mean nighttime sap flow was higher in the less precipitation year of 2004(1122.4 mm)than in the more precipitation year of 2005(1342.5 mm)since more daytime transpiration and low soil water availability in the relatively dry 2004 can be the cause of more nighttime sap flow.Although vapor pressure deficit and air temperature were significantly correlated with nighttime sap flow,they could only explain a small fraction of the variance in nighttime sap flow.The total accumulated water loss(E_(L))by transpiration of canopy leaves was only;2.6–8.5%of the total nighttime sap flow(E_(t))during the nights of July 17–18 and 18–19,2006.Therefore,it is likely that the nighttime sap flow was mainly used for refillingwater in the trunk.The stem diameter at breast height,basal area and sapwood area explained much more variance of nighttime water recharge than environmental factors and other tree form features,such as tree height,stem length below the branch,and canopy size.The contribution of nighttime water recharge to the total transpiration ranged from 14.7 to 30.3%depending on different DBH class and was considerably higher in the dry season compared to the wet season.Hua Wang Ping Zhao Dirk Hölscher Quan Wang Ping Lu Xi A.Cai Xiao P.Zeng 2012Journal of Plant Ecology2012,5,3:5
7Uptake and mitochondrial dysfunction of alpha-synuclein in human astrocytes, cortical neurons and fibroblasts显示文摘The accumulation and aggregation of alpha-synuclein(α-syn)in several tissue including the brain is a major pathological hallmark in Parkinson’s disease(PD).In this study,we show that α-syn can be taken up by primary human cortical neurons,astrocytes and skin-derived fibroblasts in vitro.Our findings that brain and peripheral cells exposed to α-syn can lead to impaired mitochondrial function,leading to cellular degeneration and cell death,provides additional evidence for the involvement of mitochondrial dysfunction as a mechanism of toxicity of α-syn in human cells.Nady Braidy Wei-Ping Gai Ying Hua Xu Perminder Sachdev Gilles J Guillemin Xing-Mai Jiang J William O Ballard Martin P Horan Zhi Ming Fang Beng H Chong Daniel Kam Yin Chan 2013Translational Neurodegeneration2013,2,1:4
8MicroRNA-31 functions as an oncogenic microRNA in mouse and human lung cancer cells by repressing specific tumor suppressors显示文摘Liu Xi Sempere Lorenzo F Ouyang Haoxu Memoli Vincent A Andrew Angeline S Luo Yue Demidenko Eugene Korc Murray Shi Wei Preis Meir Dragnev Konstantin H Li Hua DiRenzo James Bak Mads Freemantle Sarah J Kauppinen Sakari Dmitrovsky Ethan 2010Journal of Clinical Investigation2010,,4:3
9Quality control measures for lowering the seroconversion rate of hemodialysis patients with hepatitis B or C virus显示文摘BACKGROUND: Hemodialysis (HD) patients are at high risk of infection by hepatitis B virus (HBV) or hepatitis C virus (HCV). The present study was designed to determine the impact of quality control measures on the prevention of transmission of blood-borne viruses. METHODS: A total of 6182 adult maintenance HD patients from all HD units in Zhejiang Province were recruited on January 1, 2007. The baseline demographic and clinical characteristics were recorded and all patients were followed up until death or survival at 4 years later. The Quality Control Standards of Hemodialysis were gradually implemented in HD units. The HBV or HCV seroconversion rates of the recruited patients were calculated and compared every year during the observation period. RESULTS: The prevalence of HBV was 8.3% at the beginning of the study, and 6.6% for HCV. With the implementation of the HD quality control measures, the HBV seroconversion rate tended to decrease year by year (χ 2 =6.620, P=0.085), and the HCV seroconversion rate decreased significantly (χ 2 =10.41, P=0.015). Compared with the data in 2007, the HBV seroconversion rate (χ 2 =4.204, P=0.040, relative risk ratio 0.393, 95% CI 0.156-0.991) and the HCV seroconversion rate (χ 2 =7.373, P=0.007, relative risk ratio 0.386, 95% CI 0.189-0.787) decreased significantly in 2010. CONCLUSION: Quality control measures for HD decreased the seroconversion rates of HBV or HCV in HD patients, showing that updated quality control measures reduce the risk for transmission of blood-borne viruses in the HD population.Jing Yuan,Yi Yang, Fei Han, Ping Zhang, Xiao-Ying Du, Hua Jiang and Jiang-Hua Chen The Kidney Disease Center, First Affiliated Hospital, Zhejiang University School of Medicine (Yuan J, Yang Y, Han F, Zhang P, Du XY, Jiang H and Chen JH) and Hemodialysis Quality Control Center of Zhejiang Province (Yuan J, Zhang P, Du XY and Chen JH), Hangzhou 310003, China 2012Hepatobiliary & Pancreatic Diseases International2012,11,3:2
10Sex-specific differences in white matter microvascular integrity after ischaemic stroke显示文摘background and purpose Functional outcomes after ischaemic stroke are worse in women,despite adjusting for differences in comorbidities and treatment approaches.White matter microvascular integrity represents one risk factor for poor long-term functional outcomes after ischaemic stroke.The aim of the study is to characterise sex-specific differences in microvascular integrity in individuals with acute ischaemic stroke.Methods A retrospective analysis of subjects with acute ischaemic stroke and brain MRI with diffusion-weighted(DWI)and dynamic-susceptibility contrast-enhanced(DSC)perfusion-weighted imaging obtained within 9 hours of last known well was performed.In the hemisphere contralateral to the acute infarct,normal-appearing white matter(NAWM)microvascular integrity was measured using the K_(2) coefficient and apparent diffusion coefficient(ADC)values.Regression analyses for predictors of K_(2) coefficient,DWI volume and good outcome(90-day modified Rankin scale(mRS)score<2)were performed.results 105 men and 79 women met inclusion criteria for analysis.Despite no difference in age,women had increased NAWM K_(2) coefficient(1027.4 vs 692.7×10^(-6)/s;p=0.006).In women,atrial fibrillation(β=583.6;p=0.04)and increasing NAWM ADC(β=4.4;p=0.02)were associated with increased NAWM K_(2) coefficient.In multivariable regression analysis,the K_(2) coefficient was an independent predictor of DWI volume in women(β=0.007;p=0.01)but not men.Conclusions In women with acute ischaemic stroke,increased NAWM K_(2) coefficient is associated with increased infarct volume and chronic white matter structural integrity.Prospective studies investigating sex-specific differences in white matter microvascular integrity are needed.Mark R Etherton Ona Wu Pedro Cougo Svetlana Lorenzano Hua Li Lisa Cloonan Mark J R J Bouts Arne Lauer Ken Arai Eng H Lo Steve K Feske Karen L Furie Natalia S Rost 2019Stroke & Vascular Neurology2019,4,4:2
11High performance plasmonic crystal sensor formed by soft nanoimprint lithography 显示文摘Malyarchuk V Hua F Mack N H 2005Optics express2005,13,15:1
12Influence of strain hardening on continuous plate roll-bending process 显示文摘LIN Y H HUA M 2000International Journal of Non-Linear Mechanics2000,35,:1
13A study of the copper electrode behavior in borax buffer solutions containing chloride ions and benzotriazole-type inhibitors by voltammetry and the photocurrent response method显示文摘ZHOU Guo-ding SHAO Hua Loo B H 1997J Eleetroanal Chem1997,421,12:1
14Promoting Effect of Al on SO42-/MxOy(M=Zr,Ti,Fe) Catalysts显示文摘Hua W M Xia Y D Yue Y H 2000Journal of Catalysis2000,196,1:1
15Flavonoids and volatiles in Chrysanthe-mum morifolium Ramat flower from Tongxiang county in China显示文摘SUN Q L HUA S YE J H 2010AfricanJ Biotech2010,9,25:1
16Residues of Veterinary Antibiotics in Manures From Feedlot Livestock in Eight Provinces of China 显示文摘ZHAO L HUA Y WANG D H 2010Science of the Total Environment2010,408,5:1
17lntracellular trehalose improves the survival of human red blood cells by freeze-drying显示文摘He H Liu B L Hua Z Z et aI 2007Ener- gy Power Eng2007,1,1:1
18Allogenic mesenehymal stem cells transplantation in refractory systemic lupus ery- thematosus: a pilot clinical study 显示文摘Liang J Zhang H Hua B 2010Ann Rheum Dis2010,69,8:1
19Influence of process variables on the qualities of detonation gun sprayed WC-Co coatings 显示文摘Du H Hua W Liu J 2005Materials Science and Engineering2005,408,12:1
202'-O methylation of internal adenosine by fiavivirus NS5 methyhransferase显示文摘Dang H Chang DC Hua MH 2012PLoS Path og2012,8,10:1
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