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| 1 | Protective effects of ischemic preconditioning and application of lipoic acid prior to 90 min of hepatic ischemia in a rat model显示文摘AIM: To compare different preconditioning strategies to protect the liver from ischemia/reperfusion injury focusing on the expression of pro- and anti-apoptotic proteins. Interventions comprised different modes of ischemic preconditioning (IP) as well as pharmacologic pretreatment by α-lipoic acid (LA). METHODS: Several groups of rats were compared: sham operated animals, non-pretreated animals (nt), animals receiving IP (10 min of ischemia by clamping of the portal triad and 10 min of reperfusion) prior to sustained ischemia, animals receiving selective ischemic preconditioning (IPsel, 10 min of ischemia by selective clamping of the ischemic lobe and 10 min of reperfusion) prior to sustained ichemia, and animals receiving 500 μmol α-LA injected i.v. 15 min prior to the induction of 90 min of selective ischemia. RESULTS: Cellular damage was decreased only in the LA group. TUNEL-positive hepatocytes as well as necrotic hepatocyte injury were also decreased only by LA (19 ± 2 vs 10 ± 1, P < 0.05 and 29 ± 5 vs 12 ± 1, P < 0.05). Whereas caspase 3- activities in liver tissue were unchanged, caspase 9- activity in liver tissue was decreased only by LA pretreatment (3.1 ± 0.3 vs 1.8 ± 0.2, P < 0.05). Survival rate as the endpoint of liver function was increased after IP and LA pretreatment but not after IPsel. Levels of lipid peroxidation (LPO) in liver tissue were decreased in the IP as well as in the LA group compared to the nt group. Determination of pro- and anti-apoptotic proteins showed a shift towardsanti-apoptotic proteins by LA. In contrast, both our IP strategies failed to influence apototic cell death. CONCLUSION: IP, consisting of 10 min of ischemia and 10 min of reperfusion, protects only partly against ischemia/reperfusion injury of the liver prior to 90 min of selective ischemia. IPsel did not influence ischemic tolerance of the liver. LA improved tolerance to ischemia, possibly by downregulation of pro-apoptotic Bax. | Friedrich Duenschede Kirsten Erbes Nina Riegler Patrick Ewald Achim Kircher Stefanie Westermann Arno Schad Imke Miesmer Simon Albrecht-Schck Ines Gockel Alexandra K Kiemer Theodor Junginger | 2007 | World Journal of Gastroenterology2007，13，27： | 8 |
| 2 | Effect of technical parameters on transjugular intrahepatic portosystemic shunts utilizing stent grafts显示文摘AIM: To assess the effect of technical parameters on outcomes of transjugular intrahepatic portosystemic shunt(TIPS) created using a stent graft.METHODS: The medical records of 68 patients who underwent TIPS placement with a stent graft from 2008 to 2014 were reviewed by two radiologists blinded to the patient outcomes.Digital Subtraction Angiographic images with a measuring catheter in two orthogonal planes was used to determine the TIPS stent-to-inferior vena cava distance(SIVCD),hepatic vein to parenchymal tract angle(HVTA),portal vein to parenchymal tract angle(PVTA),and the accessed portal vein.The length and diameter of the TIPS stent and the use of concurrent variceal embolization were recorded by review of the patient's procedure note.Data on re-intervention within 30 d of TIPS placement,recurrence of symptoms,and survival were collected through the patient's chart.Cox proportional regression analysis was performed to assess the effect of these technical parameters on primary patency of TIPS,time to recurrence of symptoms,and all-cause mortality.RESULTS: There was no significant associationbetween the SIVCD and primary patency(P = 0.23),time to recurrence of symptoms(P = 0.83),or allcause mortality(P = 0.18).The 3,6,and 12-mo primary patency rates for a SIVCD ≥ 1.5 cm were 82.4%,64.7%,and 50.3% compared to 89.3%,83.8%,and 60.6% for a SIVCD of < 1.5 cm(P = 0.29).The median time to stenosis for a SIVCD of ≥ 1.5 cm was 19.1 mo vs 15.1 mo for a SIVCD of < 1.5 cm(P = 0.48).There was no significant association between the following factors and primary patency: HVTA(P = 0.99),PVTA(P = 0.65),accessed portal vein(P = 0.35),TIPS stent diameter(P = 0.93),TIPS stent length(P = 0.48),concurrent variceal embolization(P = 0.13) and reinterventions within 30 d(P = 0.24).Furthermore,there was no correlation between these technical parameters and time to recurrence of symptoms or all-cause mortality.Recurrence of symptoms was associated with stent graft stenosis(P = 0.03).CONCLUSION: TIPS stent-to-caval distance and other parameters have no significant effect on primary patency,time to recurrence of symptoms,or all-cause mortality following TIPS with a stent-graft. | Brice Andring Sanjeeva P Kalva Patrick Sutphin Rajiv Srinivasa Alvin Anene Marc Burrell Yin Xi Anil K Pillai | 2015 | World Journal of Gastroenterology2015，21，26： | 7 |
| 3 | GOBO projection for 3D measurements at highest frame rates: a performance analysis显示文摘Aperiodic sinusoidal patterns that are cast by a GOBO(GOes Before Optics)projector are a powerful tool for optically measuring the surface topography of moving or deforming objects with very high speed and accuracy.We optimised the first experimental setup that we were able to measure inflating car airbags at frame rates of more than 50 kHz while achieving a 3D point standard deviation of~500μm.Here,we theoretically investigate the method of GOBO projection of aperiodic sinusoidal fringes.In a simulation-based performance analysis,we examine the parameters that influence the accuracy of the measurement result and identify an optimal pattern design that yields the highest measurement accuracy.We compare the results with those that were obtained via GOBO projection of phase-shifted sinusoidal fringes.Finally,we experimentally verify the theoretical findings.We show that the proposed technique has several advantages over conventional fringe projection techniques,as the easy-to-build and cost-effective GOBO projector can provide a high radiant flux,allows high frame rates,and can be used over a wide spectral range. | Stefan Heist Patrick Dietrich Martin Landmann Peter Kühmstedt Gunther Notni Andreas Tünnermann | 2018 | Light(Science & Applications)2018，7，1： | 4 |
| 4 | Heterogeneous populations of neural stem cells contribute to myelin repair显示文摘As ingenious as nature's invention of myelin sheaths within the mammalian nervous system is, as fatal can be damage to this specialized lipid structure. Long-term loss of electrical insulation and of further supportive functions myelin provides to axons, as seen in demyelinating diseases such as multiple sclerosis(MS), leads to neurodegeneration and results in progressive disabilities. Multiple lines of evidence have demonstrated the increasing inability of oligodendrocyte precursor cells(OPCs) to replace lost oligodendrocytes(OLs) in order to restore lost myelin. Much research has been dedicated to reveal potential reasons for this regeneration deficit but despite promising approaches no remyelination-promoting drugs have successfully been developed yet. In addition to OPCs neural stem cells of the adult central nervous system also hold a high potential to generate myelinating OLs. There are at least two neural stem cell niches in the brain, the subventricular zone lining the lateral ventricles and the subgranular zone of the dentate gyrus, and an additional source of neural stem cells has been located in the central canal of the spinal cord. While a substantial body of literature has described their neurogenic capacity, still little is known about the oligodendrogenic potential of these cells, even if some animal studies have provided proof of their contribution to remyelination. In this review, we summarize and discuss these studies, taking into account the different niches, the heterogeneity within and between stem cell niches and present current strategies of how to promote stem cell-mediated myelin repair. | Rainer Akkermann Felix Beyer Patrick Küry | 2017 | Neural Regeneration Research2017，12，4： | 3 |
| 5 | Patterns of genomic and phenomic diversity in wine and table grapes显示文摘Grapes are one of the most economically and culturally important crops worldwide,and they have been bred for both winemaking and fresh consumption.Here we evaluate patterns of diversity across 33 phenotypes collected over a 17-year period from 580 table and wine grape accessions that belong to one of the world’s largest grape gene banks,the grape germplasm collection of the United States Department of Agriculture.We find that phenological events throughout the growing season are correlated,and quantify the marked difference in size between table and wine grapes.By pairing publicly available historical phenotype data with genome-wide polymorphism data,we identify large effect loci controlling traits that have been targeted during domestication and breeding,including hermaphroditism,lighter skin pigmentation and muscat aroma.Breeding for larger berries in table grapes was traditionally concentrated in geographic regions where Islam predominates and alcohol was prohibited,whereas wine grapes retained the ancestral smaller size that is more desirable for winemaking in predominantly Christian regions.We uncover a novel locus with a suggestive association with berry size that harbors a signature of positive selection for larger berries.Our results suggest that religious rules concerning alcohol consumption have had a marked impact on patterns of phenomic and genomic diversity in grapes. | ZoëMigicovsky Jason Sawler Kyle M Gardner Mallikarjuna K Aradhya Bernard H Prins Heidi R Schwaninger Carlos D Bustamante Edward S Buckler Gan-Yuan Zhong Patrick J Brown Sean Myles | 2017 | Horticulture Research2017，4，1： | 3 |
| 6 | Spontaneous bacterial peritonitis prevalence in pretransplant patients and its effect on survival and graft loss post-transplant显示文摘AIM To investigate the incidence of spontaneous bacterial peritonitis(SBP) in pre-transplant patients and its effect on post transplant mortality and graft failure. METHODS We conducted a retrospective cohort study of patient records from the organ procurement and transplant network data set. Patients were identified by the presence of SBP pre-transplant. Univariate post-transplant survival models were constructed using the Kaplan-Meier technique and multivariate models were constructed using the Cox proportional hazards model. Variables that affected post-transplant graft survival were identified in the SBP population. RESULTS Forty-seven thousand eight hundred and eighty patient records were included in the analysis for both groups, and 1966(4.11%) patients were identified in the data set as having pre-transplant SBP. Patients that had pre-transplant SBP had higher rates of graft loss from recurrent hepatitis C virus(HCV)(3.6% vs 2.0%, P < 0.0001), infections leading to graft loss(1.9% vs 1.3%, P = 0.02), primary non-function(4.3% vs 3.0%, P < 0.0001) and chronic rejection(1.1% vs 0.7%, P = 0.04). Kaplan-Meier survival analysis showed a statistically significant difference in all-cause survival in patients with a history of SBP vs those without(P < 0.0001). Pretransplant history of SBP was independently predictiveof mortality due to recurrent HCV(HR = 1.11, 95%CI: 1.02-1.21, P < 0.017) after liver transplantation.CONCLUSION HCV patients prior to the advent of directing acting anti-viral agents had a higher incidence of pre-transplant SBP than other patients on the liver transplant wait list. SBP history pre-transplant resulted in a higher rate of graft loss due to recurrent HCV infection and chronic rejection. | Neeral L Shah Nicolas M Intagliata Zachary H Henry Curtis K Argo Patrick G Northup | 2016 | World Journal of Hepatology2016，8，36： | 2 |
| 7 | Advanced non-alcoholic steatohepatitis cirrhosis: A high-risk population for pre-liver transplant portal vein thrombosis显示文摘AIM To examine if liver transplant recipients with high-risk non-alcoholic steatohepatitis(NASH) are at increased risk for pre-transplant portal venous thrombosis.METHODS Data on all liver transplants in the United States from February 2002 through September 2014 were analyzed. Recipients were sorted into three distinct groups: High-risk(age > 60, body mass index > 30 kg/m2, hypertension and diabetes), low-risk and non-NASH cirrhosis. Multivariable logistic regression models were constructed.RESULTS Thirty-five thousand and seventy-two candidates underwent liver transplantation and of those organ recipients, 465 were transplanted for high-risk and 2775 for lowrisk NASH. Two thousand six hundred and twentysix(7.5%) recipients had pre-transplant portal vein thrombosis; 66(14.2%) of the high-risk NASH group had portal vein thrombosis vs 328(11.8%) of the lowrisk NASH group. In general, all NASH recipients were less likely to be male or African American and more likely to be obese. In adjusted multivariable regression analyses, high-risk recipients had the greatest risk ofpre-transplant portal vein thrombosis with OR = 2.11(95%CI: 1.60-2.76, P < 0.001) when referenced to the non-NASH group.CONCLUSION Liver transplant candidates with high-risk NASH are at the greatest risk for portal vein thrombosis development prior to transplantation. These candidates may benefit from interventions to decrease their likelihood of clot formation and resultant downstream hepatic decompensating events. Prospective study is needed. | Jonathan G Stine Curtis K Argo Shawn J Pelletier Daniel G Maluf Stephen H Caldwell Patrick G Northup | 2017 | World Journal of Hepatology2017，9，3： | 2 |
| 8 | A misdiagnosed case of caesarean scar pregnancy显示文摘 | Jens Einenkel Patrick Stumpp Sabrina K?sling Lars-Christian Horn Michael H?ckel | 2005 | Archives of Gynecology and Obstetrics2005，，2： | 2 |
| 9 | Total and segmental liver volume variations: Implications for liver surgery显示文摘 | Eddie K Abdalla Alban Denys Patrick Chevalier Rabih A Nemr Jean-Nicolas Vauthey | 2004 | Surgery2004，，4： | 2 |
| 10 | Cardiac resynchronization therapy for the treatment of heart failure in patients with intraventricular conduction delay and malignant ventricular tachyarrhythmias显示文摘 | Steven L Higgins John D Hummel Imran K Niazi Michael C Giudici Seth J Worley Leslie A Saxon John P Boehmer Michael B Higginbotham Teresa De Marco Elyse Foster Patrick G Yong | 2003 | Journal of the American College of Cardiology2003，，8： | 2 |
| 11 | Auxin-promoted transport of metabolites in stem of Phasevlus vulgaris L:auxin dose response curves and effects of inhibitors of polar auxin transport显示文摘 | Patrick J W Steains K H | 1987 | J Exp Bot1987，38，： | 1 |
| 12 | Disposition of the selective cholesterol absorption inhibitor ezetimibe in healthy male subjects显示文摘 | PATRICK J E KOSOGLOU T STAUBER K L | 2002 | Drug Metab Dispos2002，30，4： | 1 |
| 13 | Effect of alternate aerobic and anaerobic con- ditions on redox potential, organic matter decomposition and nitrogen loss in a flooded soil显示文摘 | Reddy K Patrick J W | 1975 | Soil Biol Biochem1975，7，2： | 1 |
| 14 | Effect of mac ro- and micro-nutrient limitation on superoxide dis- mutase activities and carotenoid levels in microalga Dunaliella salina CCAP 19/18显示文摘 | Sushanta K S Siobhan M Patrick M | 2013 | Bioresource Tech nology2013，，147： | 1 |
| 15 | Changes in the maternal hypothalamic - pituitary - adrenal axis during the early puerperium may he related to the postpartum blues显示文摘 | OKeane V Lightman S Patrick K | 2011 | Neu roendocrinol2011，23，11： | 1 |
| 16 | Diverse functions of IL-2, IL-15, and IL-7 in lymphoid homeostasis显示文摘 | Averill M Rima K Patrick B | 2006 | Annual Review of Immunology2006，24，4： | 1 |
| 17 | Sheepskin effects in Japan显示文摘 | THOMAS K BAUER PATRICK J | 2005 | International Journal of Manpower2005，26，4： | 1 |
| 18 | Silver doped titanium dioxide nanomaterials for enhanced visible light photocatalysis显示文摘 | K S Michael G Reenamole F Patrick | 2007 | Journal of Photochemistry and Photobiology A2007，189，： | 1 |
| 19 | Investigation of the PECVD TiO2-Si(100) interface显示文摘 | PATRICK R M LAURA J S SANDEEP K | 2004 | Applied Surface Science2004，233，： | 1 |
| 20 | A secure workflow model显示文摘 | Patrick C K Hung Kamalakar Karlapalem | 2003 | Australasian Information Security Workshop2003，21，6： | 1 |
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