2007
Decreased intrahepatic response to α1‐adrenergic agonists in lipopolysaccharide‐treated rats is located in the sinusoidal area and depends on Kupffer cell function
Lee C, Loureiro‐Silva M, Abraldes JG, Iwakiri Y, Haq O, Groszmann RJ. Decreased intrahepatic response to α1‐adrenergic agonists in lipopolysaccharide‐treated rats is located in the sinusoidal area and depends on Kupffer cell function. Journal Of Gastroenterology And Hepatology 2007, 22: 893-900. PMID: 17498219, DOI: 10.1111/j.1440-1746.2007.04922.x.Peer-Reviewed Original ResearchConceptsLipopolysaccharide-treated ratsKupffer cell functionVascular responsesAdrenergic agonistsKupffer cellsNormal liverSinusoidal areaNitric oxide synthase inhibitorCell functionOxide synthase inhibitorRole of KupfferVascular tone controlNitric oxide overproductionKrebs-Henseleit solutionNitric oxide productionΑ1-adrenergic agonistDose-response curveIntrahepatic responseMicrovascular abnormalitiesSecond doseEndotoxemic ratsLiver perfusionSynthase inhibitorMethoxamineGadolinium chloride
2006
Increased phosphodiesterase-5 expression is involved in the decreased vasodilator response to nitric oxide in cirrhotic rat livers
Loureiro-Silva MR, Iwakiri Y, Abraldes JG, Haq O, Groszmann RJ. Increased phosphodiesterase-5 expression is involved in the decreased vasodilator response to nitric oxide in cirrhotic rat livers. Journal Of Hepatology 2006, 44: 886-893. PMID: 16545481, DOI: 10.1016/j.jhep.2006.01.032.Peer-Reviewed Original ResearchMeSH Keywords3',5'-Cyclic-GMP PhosphodiesterasesAnimalsCyclic Nucleotide Phosphodiesterases, Type 5Enzyme InhibitorsLiver CirculationLiver CirrhosisMaleNitric OxideNitric Oxide SynthaseOmega-N-MethylargininePhosphodiesterase InhibitorsPhosphoric Diester HydrolasesPiperazinesPurinesRatsRats, Sprague-DawleySildenafil CitrateSulfonesVasodilationConceptsPDE-5 expressionPhosphodiesterase-5 expressionCirrhotic liverCirrhotic rat liverPresence of sildenafilNitric oxideVasodilator responseDeficient responseNormal liverAscitic cirrhotic ratsDecreased vascular responseDecreased vasodilator responseConcentration-response curvesRat liverCyclic guanosine 3Second messenger cyclic guanosine 3Vasodilator effectCirrhotic ratsVascular responsesBACKGROUND/Liver perfusionDecreased responseSpontaneous NO donorSildenafil citrateNO donor
2003
A liver-specific nitric oxide donor improves the intra-hepatic vascular response to both portal blood flow increase and methoxamine in cirrhotic rats
Loureiro-Silva MR, Cadelina GW, Iwakiri Y, Groszmann RJ. A liver-specific nitric oxide donor improves the intra-hepatic vascular response to both portal blood flow increase and methoxamine in cirrhotic rats. Journal Of Hepatology 2003, 39: 940-946. PMID: 14642609, DOI: 10.1016/j.jhep.2003.09.018.Peer-Reviewed Original ResearchConceptsBlood flow increasesCirrhotic ratsPortal pressureUrsodeoxycholic acidLiver perfusionFlow/pressure curvesNO donorAscitic cirrhotic ratsBlood volume expansionBasal heart rateSitu liver perfusionNitric oxide productionNitric oxide donorDose/response curveBlood flow measurementsPortal hypertensionHemodynamic effectsArterial pressureFlow increasesVascular responsesControl ratsBlood infusionBACKGROUND/Heart rateOxide donor