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Increased expression of tumor necrosis factor-a is associated with advanced colorectal cancer stages

World Journal of Gastroenterology 2014年第48期20卷 18390-18396页

作者： Omar A Al Obeed Khayal A Alkhayal Abdulmalik Al Sheikh Ahmad M Zubaidi Mansoor-Ali Vaali-Mohammed Robin Boushey james h mckerrow Maha-hamadien Abdulla Colorectal Research Center Department of Surgery King Saud University Riyadh 11472 Saudi Arabia Department of Pathology King Saud University Riyadh 11472 Saudi Arabia Division of General Surgery Ottawa Hospital University of Ottawa Ontario K1H 8L6 Canada Center for Discovery and Innovation in Parasitic Diseases University of California San Francisco San Francisco CA 94158-2330 United States

AIM:To detect the expression of tumor necrosis factor-a(TNF-a)in colorectal cancer(CRC)cells among Saudi patients,and correlate its expression with clinical stages of ***:Archival tissue specimens were collected from 30 patients with CRC who had undergone surgical intervention at King Khalid University *** demographic information,including age and gender,tumor sites,and histological type of CRC,was *** measure TNF-a m RNA expression in CRC,total RNA was extracted from tumor formalin-fixed,paraffinembedded,and adjacent normal *** transcription and reverse transcription polymerase chain reaction were *** tissue microarrays were constructed to investigate the protein expression of TNF-a by ***:The relative expression of TNF-a m RNA in colorectal cancer was significantly higher than that seen in adjacent normal colorectal *** TNF-a gene expression was associated with StageⅢandⅣneoplasms when compared with earlier tumor stages(P=0.004).Eighty-three percent of patients(25/30)showed strong TNF-a positive staining,while only 10%(n=3/30)of patients showed weak staining,and 7%(n=2/30)were *** showed the presence of elevated TNF-a gene expression in cancer cells,which strongly correlated with advanced stages of ***:high levels of TNF-a expression could be an independent diagnostic indicator of colorectal cancer,and targeting TNF-a might be a promising prognostic tool by assessment of the clinical stages of CRC.

关键词： Tumor necrosis factor-a Colorectal cancer Real time polymerase chain reaction Immunohistochemistry m RNA

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N,N′-双取代脲类克鲁斯氏锥体虫半胱氨酸蛋白酶小分子抑制剂的合成及其活性研究

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中国药科大学学报 2003年第6期34卷 491-495页

作者：郭春 Xiaohui Du james h.mckerrow Fred E.Cohen 沈阳药科大学制药工程学院沈阳110016 School of Pharmacy University of CaliforniaSan FranciscoUSA 123413

目的 :寻找克鲁斯氏锥体虫体半胱氨酸蛋白酶 (Cruzain)的小分子抑制剂。方法 :根据对Cruzain分子结构的计算机模拟设计结果 ,选用N ,N′ 双取代脲为先导结构 ,设计并合成了 2 1个未见文献报道的双取代脲衍生物 ,确证了它们的化学结构 ,... 详细信息

目的 :寻找克鲁斯氏锥体虫体半胱氨酸蛋白酶 (Cruzain)的小分子抑制剂。方法 :根据对Cruzain分子结构的计算机模拟设计结果 ,选用N ,N′ 双取代脲为先导结构 ,设计并合成了 2 1个未见文献报道的双取代脲衍生物 ,确证了它们的化学结构 ,测定了化合物的体外抑制Cruzain的IC50 值。结果 :生物活性测定结果显示所合成的化合物均有不同程度的抑制Cruzain的活性 ,其中化合物Ⅳ8、Ⅳ9和Ⅳ1 7的活性与对照药tf

关键词：克鲁斯氏锥体虫体半胱氨酸蛋白酶抑制剂 N,N'-双取代脲合成活性

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The Rising Burden of hepatocellular Carcinoma: Is the Gender Gap Narrowing?

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Journal of Clinical and Translational hepatology 2024年第9期12卷 763-764页

作者： james K.h.ho Prem h.Thurairajah Daniel Q.huang Kristie h.Fan Division of Gastroenterology and hepatology National University HospitalNational University Health SystemSingaporeSingapore

Dear Editors,The landscape of hepatocellular carcinoma(hCC)is continuously *** global trends indicate a significant shift in the epidemiology of hCC from viral-related to non-viral-related ***-associated fatty liver disease has emerged as the fastest-growing contributor to hCC in recent years,due to the increased prevalence of obesity and metabolic risk factors.

关键词： Carcinoma epidemiology obesity

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Analysis of the Oscillatory Flows of Multiple Shock Waves in a Constant Area Duct

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Journal of Thermal Science 2024年第3期33卷 794-806页

作者： K james Jintu KIM heuy Dong Department of Mechanical Engineering Andong National UniversityAndong36729Republic of Korea CAD-IT Korea Co. Ltd.Seoul08591Republic of Korea

The oscillatory response of multiple shock waves to downstream perturbations in a supersonic flow is studied numerically in a rectangular *** shock waves are formed inside the duct at a shock Mach number of *** duct has an exit height of h,and the effect of duct resonance on multiple shock oscillations is investigated by attaching exit ducts of lengths 0h,50h,and *** downstream disturbance frequency varied from 10 hz to 200 hz to explore the oscillation characteristics of the multiple shock *** oscillatory response of shock waves under self-excited and forced oscillation conditions are analyzed in terms of wall static pressure,shock train leading-edge location,shock train length,and the size of the separation *** extent of the initial shock location increases with an increase in exit duct length for the self-excited oscillation *** analysis of the shock train leading edge and the spectral analysis of wall static pressure variations are *** variation in the shock train length is analyzed using the pressure ratio method for self-excited as well as forced *** RMS amplitude of the normalized shock train length(ζ_(ST))increases with an increase in the exit duct length for the self-excited oscillation *** the downstream perturbation frequency is increased,ζ_(ST)is decreased for exit duct *** all exit duct designs and downstream forcing frequencies,the size of the separation bubble grows and shrinks during the shock oscillations,demonstrating the dependence on duct resonance and forced oscillations.

关键词： shock train downstream disturbance supersonic flow shock wave boundary layer interaction duct resonance flow separation

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Reducing strain on primary healthcare systems through innovative models of care:the impact of direct access physiotherapy for musculoskeletal conditions—an interrupted time series analysis

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Family Medicine and Community health 2024年第3期12卷 1-12页

作者： james henry Zouch Bjørnar Berg Are hugo Pripp Kjersti Storheim Claire E Ashton-james Manuela L Ferreira Margreth Grotle Paulo h Ferreira Sydney Musculoskeletal health Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia Centre for Intelligent Musculoskeletal health Oslo Metropolitan University Faculty of Health SciencesOsloNorway Oslo Metropolitan University Faculty of health Sciences OsloNorway Oslo Centre of Biostatistics and Epidemiology Oslo University HospitalOsloNorway Department of Rehabilitation Science and health Technology Oslo Metropolitan University Faculty of Health SciencesOsloNorway Department of Research and Innovation Oslo University Hospital Division of Clinical NeuroscienceOsloNorway Sydney Medical School Kolling InstituteThe University of Sydney Faculty of Medicine and HealthSydneyNew South WalesAustralia The George Institute for Global health SydneyNew South WalesAustralia Department of Research and Innovation Oslo University HospitalOsloNorway Department of Rehabilitation and Technology Oslo Metropolitan University Faculty of Health SciencesOsloNorway Charles Perkins Centre Sydney Musculoskeletal HealthThe University of Sydney Faculty of Medicine and HealthSydneyNew South WalesAustralia

Objectives To evaluate the longitudinal impact of introducing a national,direct access physiotherapy model of care on the rates of primary and secondary care consultations for musculoskeletal(MSK)*** Interrupted time series analysis using segmented linear *** Norway primary care Participants A cohort of 82072 participants was derived from 3 population-based health surveys conducted across separate geographical regions in *** participants surveyed were eligible for inclusion as a national representative sample of the Norwegian *** MSK consultations were linked to the Norwegian Control and Payment of health Reimbursement database and the Norwegian Patient Register using the International Classification of Primary Care diagnostic medical codes L-chapter for MSK conditions and spine related International Classification of Diseases,10th Revision,*** Direct access to physiotherapy model of care introduced nationally in Norway in *** model allowed Norwegians to consult directly with qualified physiotherapists for MSK conditions(eg,back pain,knee osteoarthritis)without the need for a medical referral in order to claim a social security *** outcomes measured Rates of primary care consultations per 10000 population(general practitioner(GP)and physiotherapist consultations)and secondary care(specialist consultations and surgical procedures)measured from 2014 to *** The introduction of the direct access physiotherapy model was associated with an immediate stepped reduction of 391 general practice consultations per 10000 population,(95%CI:−564 to−216),without an associated change in physiotherapy *** analyses suggested there was an associated reduction in physiotherapy consultations for those in the lowest education group of 150 consultations per quarter(95%CI:−203 to−97),70 consultations per quarter in the intermediate education group(95%CI:−115 to−27)and a step

关键词： impact analysis strain

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New Opportunities for Neutrons in Environmental and Biological Sciences

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Frontiers of Environmental Science & Engineering 2024年第7期18卷 179-186页

作者： Alexander Johs Shuo Qian Leighton Coates Brian h.Davison james G.Elkins Xin Gu Jennifer Morrell-Falvey hugh O'Neill Jeffrey M.Warren Eric M.Pierce Kenneth herwig Oak Ridge National Laboratory Oak RidgeTN37831USA

The use of neutron methods in environmental and biological sciences is rapidly emerging and accelerating with the development of new instruments at neutron user *** article,based on a workshop held at Oak Ridge National Laboratory(ORNL),offers insights into the application of neutron techniques in environmental and biological *** highlight recent advances and identify key challenges and potential future research *** include soil and rhizosphere processes,root water dynamics,plant-microbe interactions,structure and dynamics of biological systems,applications in synthetic biology and enzyme engineering,next-generation bioproducts,biomaterials and bioenergy,nanoscale structure,and fluid dynamics of porous materials in *** provide an outlook on emerging opportunities with an emphasis on new capabilities that will be enabled at the Spallation Neutron Source Second Target Station currently under design at *** mission of scientific neutron user facilities worldwide is to enable science using state-of-the-art neutron *** aim to encourage researchers in the environmental and biological research community to explore the unique capability afforded by neutrons at these facilities.

关键词： Neutrons Environment Biology Neutron imaging Neutron scattering Second Target Station(STS)

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Synthesis of carbon nitride in potassium hydroxide molten salt for efficient uranium extraction from radioactive wastewater

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Frontiers of Environmental Science & Engineering 2024年第8期18卷 89-99页

作者： Shuang Liu Junhan Luo Daniel-james Maguire Liyuan Zheng Zhe Wang Yuexiang Lu Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China Nuclear Research Institute for Future Technology and Policy Seoul National UniversitySeoul 08826Republic of Korea Department of Earth Sciences University of CambridgeCambridge CB23EQUK The MOE Key Laboratory of Resources and Environmental System Optimization College of Environmental Science and EngineeringNorth China Electric Power UniversityBeijing 102206China

Photocatalysis-assisted removal of uranium has been proven as an effective method for the elimination of radioactive pollution from *** this work,carbon nitride materials were synthesized in potassium hydroxide(KOh)molten salt and applied to photocatalytic uranyl *** materials were confirmed to possess the triazine-s-heptazine structure by NMR,XPS and UV-Vis characterization,and exhibited a wider visible light absorption than graphitic carbon nitride(g-C_(3)N_(4)).The photocatalytic activity of the carbon nitride materials was tailored by varying the precursor mass *** carbon nitride obtained at 80%melamine as precursor(K-CN-80)exhibited the highest photocatalytic extraction ability and its photocatalytic reaction rate is 6.6 times faster than that of g-C_(3)N_(4).The influence of sacrificial agents was studied and the results showed that triethanolamine inhibited U(Ⅵ)photoreduction,but methanol can accelerate U(Ⅵ)photoreduction by consuming photogenerated *** unary KOh molten salt synthesis method has exceptional potential applications in the preparation of carbon nitrides,and the obtained products showed potential in extracting U(Ⅵ)from aqueous solutions for use in nuclear fuel industry and for U(Ⅵ)environmental pollution cleanup.

关键词： Uranium Carbon nitride Molten salt Photocatalysis Radioactive wastewater

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Facilitated Prediction of Micropollutant Degradation via UV-AOPs in Various Waters by Combining Model Simulation and Portable Measurement

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Engineering 2024年第6期37卷 87-95页

作者： Yanyan huang Mengkai Li Zhe Sun Wentao Li james R.Bolton Zhimin Qiang Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China Department of Civil and Environmental Engineering University of AlbertaEdmontonAB T6G 1H9Canada State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

The degradation of micropollutants in water via ultraviolet(UV)-based advanced oxidation processes(AOPs)is strongly dependent on the water *** reactive radicals(RRs)formed in UV-AOPs have different reaction selectivities toward water matrices and degradation efficiencies for target ***,process selection and optimization are *** study developed a facilitated prediction method for the photon fluence-based rate constant for micropollutant degradation(K′_(p,MP))in various UV-AOPs by combining model simulation with portable *** methods for measuring the scavenging capacities of the principal RRs(RRSCs)involved in UV-AOPs(i.e.,hO^(·),SO_(4)^(·-),and Cl^(·))using a mini-fluidic photoreaction system were *** simulation models consisted of photochemical,quantitative structure–activity relationship,and radical concentration steady-state approximation *** RRSCs were determined in eight test waters,and a higher RRSC was found to be associated with a more complex water ***,by taking sulfamethazine,caffeine,and carbamazepine as model micropollutants,the k′_(p,MP) values in various UV-AOPs were predicted and further verified experimentally.A lower k′_(p,MP) was found to be associated with a higher RRSC for a stronger RR competition;for example,k′_(p,MP) values of 130.9 and 332.5 m^(2) einstein^(–1),respectively,were obtained for carbamazepine degradation by UV/h_(2)O_(2) in the raw water(RRSC=9.47×10^(4) s^(-1))and sand-filtered effluent(RRSC=2.87×10^(4) s^(-1))of a drinking water treatment *** developed method facilitates process selection and optimization for UV-AOPs,which is essential for increasing the efficiency and cost-effectiveness of water treatment.

关键词： UV-AOPs Micropollutant degradation Reactive radicals Water matrix Model simulation

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Evaluating reservoir suitability for large-scale hydrogen storage:A preliminary assessment considering reservoir properties

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Energy Geoscience 2024年第4期5卷 198-211页

作者： Chinedu J.Okere james J.Sheng Chinedu Ejike Bob L.herd Department of Petroleum Engineering Texas Tech UniversityLubbockTX79409United States Mewbourne School of Petroleum and Geological Engineering University of OklahomaOK73019United States

With rising demand for clean energy,global focus turns to finding ideal sites for large-scale underground hydrogen storage(UhS)in depleted petroleum reservoirs.A thorough preliminary reservoir evaluation before hydrogen(h_(2))injection is crucial for UhS success and *** criteria for UhS often emphasize economics and chemistry,neglecting key reservoir *** study introduces a comprehensive framework for the reservoir-scale preliminary assessment,specifically tailored for long-term h_(2) storage within depleted gas *** evaluation criteria encompass critical components,including reservoir geometry,petrophysical properties,tectonics,and formation *** illustrate the practical application of this approach,we assess the Barnett shale play reservoir *** assessment unfolds through three key stages:(1)A systematic evaluation of the reservoir's properties against our comprehensive screening criteria determines its suitability for h_(2) storage.(2)Using both homogeneous and multilayered gas reservoir models,we explore the feasibility and efficiency of h_(2) *** phase involves an in-depth examination of reservoir behavior during the injection stage.(3)To enhance understanding of UhS performance,sensitivity analyses investigate the impact of varying reservoir dimensions and injection/production *** findings reveal the following:(a)Despite potential challenges associated with reservoir compaction and aquifer support,the reservoir exhibits substantial promise as an h_(2) storage site.(b)Notably,a pronounced increase in reservoir pressure manifests during the injection stage,particularly in homogeneous reservoirs.(c)Furthermore,optimizing injection-extraction cycle efficiency can be achieved by augmenting reservoir dimensions while maintaining a consistent *** ensure a smooth transition to implementation,further comprehensive investigations are advised,including experimental and numerical studies to address

关键词： Site selection Underground hydrogen storage Preliminary evaluation Depleted petroleum reservoirs Reservoir assessment

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Protective effects of cyclosporine and its analog NIM-811 in a murine model of hepatic ischemia-reperfusion injury

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Liver Research 2024年第1期8卷 46-53页

作者： Joshua hefler Rena Pawlick Braulio A.Marfil-Garza Aducio Thiesen Nerea Cuesta-Gomez Sanaz hatami Darren h.Freed Constantine Karvellas David L.Bigam A.M.james Shapiro Department of Surgery Faculty of Medicine&DentistryUniversity of AlbertaEdmontonABCanada Department of Medicine Faculty of Medicine&DentistryUniversity of AlbertaEdmontonABCanada ChRISTUS-LatAm hub Excellence&Innovation Center MonterreyMexico Alberta Diabetes Institute University of AlbertaEdmontonABCanada Clinical Islet Transplant Program University of AlbertaEdmontonABCanada Department of Laboratory Medicine&Pathology Faculty of Medicine&DentistryUniversity of AlbertaEdmontonABCanada

Background and aim:The liver is susceptible to ischemia-reperfusion injury(IRI)during hepatic surgery,when the vessels are compressed to control bleeding,or liver transplantation,when there is an obligate period of *** hallmark of IRI comprises mitochondrial dysfunction,which generates reactive oxygen species,and cell death through necrosis or ***(CsA),which is a well-known immunosuppressive agent that inhibits calcineurin,has the additional effect of inhibiting the mito-chondrial permeability transition pore(mPTP),thereby,preventing mitochondrial swelling and ***-811,which is the nonimmunosuppressive analog of CsA,has a similar effect on the *** this study,we tested the effect of both agents on mitigating warm hepatic IRI in a murine *** and methods:Before ischemic insult,the mice were administered with intraperitoneal normal saline(control);CsA at 2.5,10,or 25 mg/kg;or NIM-811 at 10 mg/***,the mice were subjected to partial warm hepatic ischemia by selective pedicle clamping for 60 min,followed by 6 h of recovery after *** alanine transaminase(ALT)was measured,and the liver tissue was examined histologically for the presence of apoptosis and the levels of inflammatory ***:Compared with the control mice,the mice treated with 10 and 25 mg/kg of CsA and NIM-811 had significantly lower ALT levels(Phe liver tissue showed reduced histological injury scores after treatment with CsA at 2.5,10,and 25 mg/kg and NIM-811(P=0.041,h CsA at all doses(P=0.012,0.007,andhe pro-inflammatory cyto-kines,particularly interleukin(IL)-1β,IL-2,IL-4,IL-10,and keratinocyte chemoattractant/human growth-regulated oncogene significantly decreased in the mice treated with the highest dose of CsA(25 mg/kg)than those in the control ***

关键词： Cyclosporine(CsA) Cyclosporine analogue Liver surgery Ischemia-reperfusion injury(IRI) Animal model NIM-811

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