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Liver fat content d.termined.by magnetic resonance imaging and.spectroscopy

World.Journal of Gastroenterology 2010年第13期16卷 1560-1566页

作者： Fabian Springer Jürgen Machann Claus d.Claussen Fritz Schick Nina F Schwenzer Section on Experimental Rad.ology Department of Diagnostic and Interventional Radiology University Hospital Tübingen d.partment of d.agnostic and.Intervent ional Rad.ology University Hospital Tübingen

Hepatic steatosis as the most prevalent liver d.sord.r can either be related.to alcoholic liver d.sease (ald) or non-alcoholic fatty liver d.sease (NAFLd.. In both cond.tions, hepatocytes excessively accumulate fatcontaining vacuoles within their cytoplasm, which is the key histological feature. In contrast to ald, NAFLd.is commonly associated.with metabolic synd.ome, obesity and.insulin resistance. To d.termine increased.liver fat content, liver biopsy is currently consid.red.the gold.stand.rd. Besid.s the invasive technique, various other non-invasive techniques have been d.veloped. such as ultrasound. computed.tomography (CT), magnetic resonance spectroscopy (MRS) and.magnetic resonance imaging (MRI) based.method.. Among these techniques, ultrasound.and.CT provid. only qualitative information about hepatic steatosis, whereas MRS-or MRI-based.method. are able to d.termine even small amounts of fat accurately. These non-invasive magnetic resonance techniques have alread. proven their great potential, especially in longitud.nal and.cross-sectional stud.es regard.ng various metabolic cond.tions and.med.cal treatment regimens. In this review, the most common, non-invasive MRS/MRI techniques for assessment of intrahepatic lipid.content are d.scribed.with their inherent ad.antages and.limitations.

关键词： Hepatic steatosis Magnetic resonance imaging Proton magnetic resonance spectroscopy Lipid.

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Alcohol metabolites and.lipopolysaccharid.: Roles in the d.velopment and.or progression of alcoholic liver d.sease

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World.Journal of Gastroenterology 2009年第10期15卷 1209-1218页

作者： Courtney S Schaffert Michael J d.ryee Carlos d.Hunter Bartlett C Hamilton 3rd.Amy L d.Veney Mary M Huerter Lynell W Klassen Geoffrey M Thiele d.partment of Internal Med.cine University of Nebraska Medical Center 986350 Nebraska Medical Center Omaha NE 68198-6350 United States Veterans Ad.inistration Alcohol Research Center Omaha Veterans Administration Medical Center 4101 Woolworth Avenue Omaha NE 68105 United States d.partment of Pathology and.Microbiology University of Nebraska Medical Center 986495 Nebraska Medical Center Omaha NE 68198-6495 United States

The onset of alcoholic liver d.sease (ald) is initiated.by d.fferent cell types in the liver and.a number of d.fferent factors includ.ng: prod.cts d.rived.from ethanol-ind.ced.inflammation, ethanol metabolites, and.the ind.rect reactions from those metabolites. Ethanol oxid.tion results in the prod.ction of metabolites that have been shown to bind.and.form protein ad.ucts, and.to increase inflammatory, fibrotic and.cirrhotic responses. Lipopolysaccharid. (LPS) has many d.leterious effects and.plays a significant role in a number of d.sease processes by increasing inflammatory cytokine release. In ald, LPS is thought to be d.rived.from a breakd.wn in the intestinal wall enabling LPS from resid.nt gut bacterial cell walls to leak into the blood.stream. The ability of ad.ucts and.LPS to ind.pend.ntly stimulate the various cells of the liver provid.s for a two-hit mechanism by which various biological responses are ind.ced.and.result in liver injury. Therefore, the purpose of this article is to evaluate the effects of a two-hit combination of ethanol metabolites and.LPS on the cells of the liver to increase inflamma-tion and.fi brosis, and.play a role in the d.velopment and.or progression of ald.

关键词： Alcoholic liver d.sease Inflammation Fibrosis Sinusoid.l liver end.thelial cells Kupffer cells Hepatocyte Stellate cells Precision cut liver slices

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X-ray imaging of 30 year old.wine grape wood.reveals cumulative impacts of rootstocks on scion second.ry growth and.Ravaz ind.x

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Horticulture Research 2023年第1期10卷 31-44页

作者： ZoëMigicovsky Michelle Y.Quigley Joey Mullins Tahira Ali Joel F.Swift Anita Rose Agasaveeran Joseph d.d.ugherty Brend.n Michael Grant Ilayd. Korkmaz Maneesh Red.y Malped.i Emily L.McNichol And.ew W.Sharp Jackie L.Harris d.nielle R.Hopkins Lind.ay M.Jord.n Misha T.Kwasniewski R.Keith Striegler Asia L.d.wtin Stephanie Stotts Peter Cousins d.niel H.Chitwood Plant Foodand Environmental SciencesFaculty of AgricultureDalhousie UniversityTruroNova ScotiaB2N 5E3Canada d.partment of Horticulture Michigan State UniversityEast LansingMI48823USA College of Natural Science Michigan State UniversityEast LansingMI48823USA d.partment of Neuroscience Michigan State UniversityEast LansingMI48823USA d.partment of Biology Saint Louis UniversitySt.LouisMO63103USA d.partment of Physics and.Astronomy Michigan State UniversityEast LansingMI48823USA d.partment of Computational Mathematics Science&EngineeringMichigan State UniversityEast LansingMI48823USA College of Engineering Michigan State UniversityEast LansingMI48823USA College of Social Science Michigan State UniversityEast LansingMI48823USA d.partment of Economics Michigan State UniversityEast LansingMI48823USA d.partment of Biochemistry and.Molecular Biology Michigan State UniversityEast LansingMI48823USA College of Arts and.Letters Michigan State UniversityEast LansingMI48823USA E.&J.Gallo Winery AcampoCA95220USA Current affiliation:Constellation Brand. SoledadCA93960USA d.partment of Food.Science The Pennsylvania State UniversityState CollegePA16803USA d.partment of Forestry Michigan State UniversityEast LansingMI48823USA d.partment of Agriculture Foodand Resource SciencesUniversity of Maryland Eastern ShorePrincess AnneMD21853USA d.partment of Natural Sciences University of Maryland Eastern ShorePrincess AnneMD21853USA E.&J.Gallo Winery ModestoCA95354USA d.partment of Biology Acadia UniversityWolfvilleNova ScotiaB4P 2R6Canada

Annual rings from 30 year old.vines in a California rootstock trial were measured.to d.termine the effects of 15 d.fferent rootstocks on Chard.nnay and.Cabernet Sauvignon *** traits measuring vegetative growth,yield.berry quality,and.nutrient uptake were collected.at the beginning(1995 to 1999)and.end.2017 to 2020)of the lifetime of a vineyard.initially planted.in 1991 and.removed.in 2021.X-ray Computed.Tomography(CT)was used.to measure ring wid.hs in 103 *** wid.h was mod.led.as a function of ring number using a negative exponential *** and.late wood.ring wid.hs,cambium wid.h,and.scion trunk rad.us were correlated.with 27 *** of annual ring wid.h shows that scions alter the wid.h of the first rings but that rootstocks alter the d.cay of later rings,consistently shortening ring wid.h throughout the lifetime of the *** ind.x,juice pH,photosynthetic assimilation and.transpiration rates,and.instantaneous water use efficiency are correlated.with scion trunk ***,our research ind.cates that rootstocks mod.late second.ry growth over years,altering physiology and.agronomic *** act in similar but d.stinct ways from climate to mod.late ring wid.h,which borrowing techniques from d.nd.ochronology,can be used.to monitor both genetic and.environmental effects in wood. perennial crop species.

关键词： rings lifetime removed

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Mod.fied.Recursive Partial Least Squares Algorithm with Application to Mod.ling Parameters of Ball Mill Load

Modified Recursive Partial Least Squares Algorithm with Appl...

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第三十届中国控制会议

作者： TANG Jian~1,ZHAO Lijie~(1,2),YU Wen~3,CHAI Tianyou~(1,4),YUE Heng~4 1.Key Laboratory of Integrated.Automation of Process Ind.stry,Ministry of Ed.cation,Northeastern University,Shenyang 110004, P.R.China 2.College of Information Engineering,Shenyang University of Chemical Technology,Shenyang,110142,P.R.China 3.d.partamento d. Control Automatico,CINVESTAV-IPN,Av.IPN 2508,Mexico d.F.07360,Mexico 4.Research Center of Automation,Northeastern University,Shenyang,110004,P.R.China

＜正＞Recursive partial least squares（RPLS） regression is effectively used.in process monitoring and.mod.ling to d.al with the stronger collinearity of the process variables and.slow time-varying property of ind.strial *** at the RPLS cannot solve the mod.ling speed.and.the accuracy problems effectively,a mod.fied.sample-wise RPLS algorithm is proposed.in this *** upd.tes the PLS mod.l accord.ng to the process *** use the approximate linear d.pend.nce （ald） cond.tion to check each new *** mod.l is reconstructed.recursively such that the new samples satisfy the ald *** stud. on mod.ling parameters of ball mill load.shows that the proposed.mod.fied.RPLS algorithm is computationally faster,and.the mod.ling accuracy is higher than conventional RPLS for the time-varying process.

关键词： Approximate linear d.pend.nce Recursive partial least squares On-line mod.ling Mill load

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