1993
Intraventricular Hemorrhage and Prematurity
Duncan C, Ment L. Intraventricular Hemorrhage and Prematurity. Neurosurgery Clinics Of North America 1993, 4: 727-734. PMID: 8241793, DOI: 10.1016/s1042-3680(18)30562-x.Peer-Reviewed Original ResearchConceptsIntraventricular hemorrhageRisk of hemorrhageCerebral blood flowGerminal matrix tissueDiagnostic imaging techniquesPosthemorrhagic hydrocephalusPreterm neonatesClinical manifestationsBlood flowVentricular systemHemorrhageCapillary bedMatrix tissueImaging techniquesPossible rupturePrematurityHydrocephalusNeonatesNeuropathologyParenchymaBrain
1989
Beagle puppy model of perinatal asphyxia: Blockade of excitatory neurotransmitters
Ment L, Stewart W, Petroff O, Duncan C, Montoya D. Beagle puppy model of perinatal asphyxia: Blockade of excitatory neurotransmitters. Pediatric Neurology 1989, 5: 281-286. PMID: 2553028, DOI: 10.1016/0887-8994(89)90018-0.Peer-Reviewed Original ResearchConceptsN-methyl-D-aspartate receptor antagonist MK801Cerebral blood flowBlood flowPerinatal asphyxiaCerebral high-energy phosphatesN-methyl-D-aspartate receptorsSaline 15 minBeagle puppy modelModel of ischemiaNewborn beagle puppiesHigh-energy phosphatesNeuropathologic damageAsphyxial insultPuppy modelNeuronal changesCerebral lactateExcitatory neurotransmitterBrainstem structuresPhosphocreatine levelsDrug treatmentMetabolic insultsBeagle puppiesMK801InsultPuppiesThromboxane synthesis inhibitor in a beagle pup model of perinatal asphyxia.
Ment L, Stewart W, Petroff O, Duncan C. Thromboxane synthesis inhibitor in a beagle pup model of perinatal asphyxia. Stroke 1989, 20: 809-814. PMID: 2728050, DOI: 10.1161/01.str.20.6.809.Peer-Reviewed Original ResearchConceptsCerebral blood flowThromboxane synthesis inhibitorBlood flowPerinatal asphyxiaSynthesis inhibitorCGS 13080Intraventricular hemorrhageLactate levelsCerebral regionsHigh incidenceMetabolic alterationsWhite matterLactate concentrationAsphyxiaBrain extractsInsultPhosphocreatine concentrationPupsSalineInhibitorsHemorrhageProstaglandinsMedulla
1988
Beagle puppy model of perinatal asphyxia: Alterations in cerebral blood flow and metabolism
Ment L, Stewart W, Gore J, Duncan C. Beagle puppy model of perinatal asphyxia: Alterations in cerebral blood flow and metabolism. Pediatric Neurology 1988, 4: 98-104. PMID: 3149477, DOI: 10.1016/0887-8994(88)90048-3.Peer-Reviewed Original ResearchConceptsCerebral blood flowBeagle puppy modelPerinatal asphyxiaPuppy modelBlood flowControl of CBFUncoupling of CBFATP/Pi ratioBaseline 1 hourRadioactive microsphere determinationsPCr/PiWhite matter regionsDays of ageAsphyxial episodesAsphyxial insultNeurodevelopmental handicapArterial pressureClinical sequelaeElectrocerebral silenceMicrosphere determinationBrainstem structuresCBF dataBaseline valuesPathologic conditionsAsphyxia
1987
Beagle pup model of brain injury: regional cerebral blood flow and cerebral prostaglandins.
Ment L, Stewart W, Duncan C, Pitt B, Cole J. Beagle pup model of brain injury: regional cerebral blood flow and cerebral prostaglandins. Journal Of Neurosurgery 1987, 67: 278-83. PMID: 3598687, DOI: 10.3171/jns.1987.67.2.0278.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowCerebral blood flowAsphyxial insultBrain injuryBlood flowSevere asphyxial insultPeriventricular white matterSevere brain injuryRole of prostaglandinsEffects of asphyxiaNewborn beagle pupsCerebral prostaglandinsVentilatory supportNeuropathological changesPGE2 levelsCommon causeBeagle pupsWhite matterAutoradiographic determinationInsultPupsAsphyxiaYoung childrenSeparate groupsSignificant increaseSimultaneous Determination of Cerebral Blood Flow and Partition Coefficient with a Freely Diffusable Tracer
Rescigno A, Lambrecht R, Duncan C, Shiue C, Ment L. Simultaneous Determination of Cerebral Blood Flow and Partition Coefficient with a Freely Diffusable Tracer. NATO Science Series E: 1987, 836-844. DOI: 10.1007/978-94-009-3537-2_66.Peer-Reviewed Original Research
1986
Beagle puppy model of perinatal cerebral insults. Cerebral blood flow changes and intraventricular hemorrhage evoked by hypoxemia.
Ment L, Stewart W, Duncan C, Pitt B. Beagle puppy model of perinatal cerebral insults. Cerebral blood flow changes and intraventricular hemorrhage evoked by hypoxemia. Journal Of Neurosurgery 1986, 65: 847-50. PMID: 3772483, DOI: 10.3171/jns.1986.65.6.0847.Peer-Reviewed Original ResearchConceptsCerebral blood flowWhite matterIntraventricular hemorrhageRegional cerebral blood flowCerebral blood flow changesNeonatal cerebral infarctionPerinatal cerebral insultsParieto-occipital white matterEffects of hypoxemiaBeagle puppy modelNewborn beagle pupsBlood flow changesTemporal white matterParietal white matterCentral gray regionNeuropathological injuryCerebral infarctionPerinatal asphyxiaCerebral insultNeuropathological changesPuppy modelCommon causeGerminal matrixBeagle pupsBlood flowBeagle puppy model of perinatal cerebral infarction. Regional cerebral prostaglandin changes during acute hypoxemia.
Ment L, Stewart W, Duncan C, Pitt B, Cole J. Beagle puppy model of perinatal cerebral infarction. Regional cerebral prostaglandin changes during acute hypoxemia. Journal Of Neurosurgery 1986, 65: 851-5. PMID: 3772484, DOI: 10.3171/jns.1986.65.6.0851.Peer-Reviewed Original ResearchConceptsCerebral blood flowPerinatal cerebral infarctionPeriventricular white matterCerebral infarctionHypoxemic insultWhite matterStable metaboliteGray matterLocal cerebral blood flowArterial blood pressureEffects of hypoxemiaBeagle puppy modelNewborn beagle pupsSignificant differencesAcute hypoxemiaProstaglandin changesNeuropathological alterationsBlood pressureIndwelling catheterNeuropathological changesIntensive carePuppy modelUncommon findingProstaglandin levelsCommon cause
1985
Beagle puppy model of perinatal cerebral infarction. Acute changes in regional cerebral prostaglandins during hemorrhagic hypotension.
Ment L, Stewart W, Duncan C, Cole J, Pitt B. Beagle puppy model of perinatal cerebral infarction. Acute changes in regional cerebral prostaglandins during hemorrhagic hypotension. Journal Of Neurosurgery 1985, 63: 899-904. PMID: 4056903, DOI: 10.3171/jns.1985.63.6.0899.Peer-Reviewed Original ResearchConceptsPerinatal cerebral infarctionPeriventricular white matterNewborn beagle pupsHemorrhagic hypotensionWhite matterCerebral infarctionNeuropathological changesThromboxane B2Beagle pupsMean arterial blood pressureSlow venous hemorrhagePeriventricular white matter regionsArterial blood pressureProstaglandin E2 levelsEffects of hypotensionCerebral blood flowProstaglandin determinationsBeagle puppy modelStable breakdown productWhite matter regionsCerebral prostaglandinsBlood pressureIntensive carePuppy modelPGF1 alphaBeagle puppy model of perinatal cerebral infarction. Acute changes in cerebral blood flow and metabolism during hemorrhagic hypotension.
Ment L, Stewart W, Duncan C, Pitt B, Rescigno A, Cole J. Beagle puppy model of perinatal cerebral infarction. Acute changes in cerebral blood flow and metabolism during hemorrhagic hypotension. Journal Of Neurosurgery 1985, 63: 441-7. PMID: 3839525, DOI: 10.3171/jns.1985.63.3.0441.Peer-Reviewed Original ResearchConceptsLocal cerebral glucose utilizationCerebral blood flowRegional cerebral blood flowHypotensive insultCerebral infarctionHemorrhagic hypotensionBlood flowUncoupling of CBFMean arterial blood pressureNeonatal cerebral infarctionParieto-occipital white matterPerinatal cerebral infarctionSerum prostaglandin levelsSlow venous hemorrhagePeriventricular white matter regionsAutoradiographic determinationArterial blood pressureCerebral glucose utilizationProstaglandin E2 levelsEffects of hypotensionBeagle puppy modelNewborn beagle pupsGray matter structuresStable breakdown productWhite matter regionsEarly Childhood Developmental Follow-Up of Infants with GMH/IVH: Effect of Methylxanthine Therapy
Ment L, Scott D, Ehrenkranz R, Duncan C. Early Childhood Developmental Follow-Up of Infants with GMH/IVH: Effect of Methylxanthine Therapy. American Journal Of Perinatology 1985, 2: 223-227. PMID: 4015773, DOI: 10.1055/s-2007-999955.Peer-Reviewed Original ResearchConceptsGMH/IVHMethylxanthine therapyCerebral blood flowBlood flowSmall preterm neonatesBayley mental scoresIdiopathic apneaBirthweight neonatesPreterm neonatesIntraventricular hemorrhageNeurodevelopmental outcomesNeonatal periodMental scoresGerminal matrixTherapyIVHUnderlying disturbanceInfantsAdverse effectsFurther studiesNeonatesCognitive functioningHarmful effectsMetabolismApnea1691 ASSOCIATION OF CEREBRAL PROSTAGLANDIN IMBALANCE WITH PERINMAL STROKE
Ment L, Duncan C, Stewart W, Pitt B, Cole J, Pearson H. 1691 ASSOCIATION OF CEREBRAL PROSTAGLANDIN IMBALANCE WITH PERINMAL STROKE. Pediatric Research 1985, 19: 392-392. DOI: 10.1203/00006450-198504000-01715.Peer-Reviewed Original ResearchCerebral blood flowNewborn beagle pupsCerebral infarctionBeagle pupsBlood flowPGI2/TXA2 balanceNeonatal cerebral infarctionSlow venous hemorrhageStable breakdown productPerinatal ischemiaNeuropathological consequencesProstaglandin levelsCommon causeVenous hemorrhageHH groupSimilar insultsStable metaboliteEffects of HhPG levelsC groupInsultPupsInfarctionMABPHgBeagle puppy model of intraventricular hemorrhage. Effect of superoxide dismutase on cerebral blood flow and prostaglandins.
Ment L, Stewart W, Duncan C. Beagle puppy model of intraventricular hemorrhage. Effect of superoxide dismutase on cerebral blood flow and prostaglandins. Journal Of Neurosurgery 1985, 62: 563-9. PMID: 3973726, DOI: 10.3171/jns.1985.62.4.0563.Peer-Reviewed Original ResearchConceptsCerebral blood flowIntraventricular hemorrhageProstaglandin levelsBlood flowSuperoxide dismutaseCarbon-14-iodoantipyrine autoradiographyIncidence of IVHSystemic blood pressure changesBaseline cerebral blood flowLocal cerebral blood flowDetermination of CBFBlood pressure changesSaline-pretreated animalsBeagle puppy modelNewborn beagle pupsGerminal matrix tissueHypotensive insultFree radical scavengerPreterm neonatesIodoantipyrine autoradiographyPuppy modelBeagle pupsCapillary morphologyInsultHemorrhagePerinatal Cerebral Insults: Hemorrhage and Ischemia
Ment L, Duncan C, Stewart W. Perinatal Cerebral Insults: Hemorrhage and Ischemia. Pediatric Neurosurgery 1985, 12: 168-174. PMID: 3916368, DOI: 10.1159/000120242.Peer-Reviewed Original ResearchConceptsMajor neurodevelopmental handicapsCerebral blood flowNeurodevelopmental handicapParenchymal involvementCerebral infarctionPreterm infantsIntraventricular hemorrhageGestational ageIschemic insultPerinatal careHigh riskBlood flowHemorrhageInfantsDevelopmental abnormalitiesCareInfarctionIschemiaNeonatesLesionsAbnormalitiesIncidenceInsultSurvivorsBrainVariability of the Partition Coefficient in Relation to Cerebral Blood Flow with a Freely Diffusible Tracer
Lambrecht R, Rescigno A, Duncan C, Shiue C, Ment L. Variability of the Partition Coefficient in Relation to Cerebral Blood Flow with a Freely Diffusible Tracer. 1985, 377-381. DOI: 10.1007/978-3-642-70054-5_57.Peer-Reviewed Original Research
1984
Delayed Hemorrhagic Infarction: A Cause of Late Neonatal Germinal Matrix and Intraventricular Hemorrhage
Ment L, Ehrenkranz R, Duncan C, Lange R. Delayed Hemorrhagic Infarction: A Cause of Late Neonatal Germinal Matrix and Intraventricular Hemorrhage. JAMA Neurology 1984, 41: 1036-1039. PMID: 6477210, DOI: 10.1001/archneur.1984.04050210034010.Peer-Reviewed Original ResearchConceptsCerebral blood flowLow cerebral blood flowLate intraventricular hemorrhageIntraventricular hemorrhageFirst postnatal dayMonths of ageSeries of insultsProfound hypotensionPorencephalic cystPostnatal eventsGerminal matrixPostnatal dayBlood flowHemorrhageNeonatesTomographic evidenceInfarcted tissueHypotensionTissueAsphyxiaEncephalomalaciaInfarctionInfantsCystsInsultPROSTAGLANDIN-MEDIATED CONTROL OF NEONATAL CEREBRAL BLOOD FLOW
Ment L, Stewart W, Duncan C, Pitt B. PROSTAGLANDIN-MEDIATED CONTROL OF NEONATAL CEREBRAL BLOOD FLOW. Pediatric Research 1984, 18: 380-380. DOI: 10.1203/00006450-198404001-01722.Peer-Reviewed Original ResearchCerebral blood flowNeonatal cerebral blood flowIntraventricular hemorrhageNewborn beagle pupsBP changesCBF changesBeagle pupsBlood flowSuperoxide dismutaseBaseline cerebral blood flowNeonatal intraventricular hemorrhageCyclo-oxygenase pathwaySynthesis of TxB2Free radical scavengerPreterm neonatesHemorrhagic hypotensionCapillary changesIndomethacinPupsSynthetic enzymesAlterationsBreakdown productsHypotensionHemorrhageNeonatesIntraventricular hemorrhage in the preterm neonate: Timing and cerebral blood flow changes
Ment L, Duncan C, Ehrenkranz R, Lange R, Taylor K, Kleinman C, Scott D, Sivo J, Gettner P. Intraventricular hemorrhage in the preterm neonate: Timing and cerebral blood flow changes. The Journal Of Pediatrics 1984, 104: 419-425. PMID: 6707798, DOI: 10.1016/s0022-3476(84)81109-9.Peer-Reviewed Original ResearchConceptsGMH/IVHCerebral blood flowPostnatal hoursBlood flowEarly hemorrhagePreterm neonatesIntraventricular hemorrhageIVH groupUltrasound studyLow cerebral blood flowCerebral blood flow changesCerebral blood flow determinationsCranial ultrasound studiesHigh ventilator settingsCerebral blood flow valuesPatent ductus arteriosusBlood flow changesRisk factor analysisBlood flow determinationsBlood flow valuesTime of birthVigorous resuscitationNeonatal eventsDuctus arteriosusEchocardiographic study
1983
The ramp injection of radiotracers for blood flow measurement by emission tomography
Duncan C, Lambrecht R, Rescigno A, Shiue C, Bennett G, Ment L. The ramp injection of radiotracers for blood flow measurement by emission tomography. Physics In Medicine And Biology 1983, 28: 963-972. PMID: 6604926, DOI: 10.1088/0031-9155/28/8/008.Peer-Reviewed Original ResearchBeagle puppy model of intraventricular hemorrhage. Effect of indomethacin on cerebral blood flow.
Ment L, Stewart W, Duncan C, Scott D, Lambrecht R. Beagle puppy model of intraventricular hemorrhage. Effect of indomethacin on cerebral blood flow. Journal Of Neurosurgery 1983, 58: 857-62. PMID: 6854378, DOI: 10.3171/jns.1983.58.6.0857.Peer-Reviewed Original ResearchConceptsCerebral blood flowIntraventricular hemorrhageNewborn beagle puppiesBeagle puppiesBlood flowDetermination of CBFBlood pressure responseNeonatal intraventricular hemorrhageEffect of indomethacinBeagle puppy modelNewborn beagle pupsPuppy modelBeagle pupsIndomethacinProstaglandin synthetaseInsultPupsFormer groupSignificant alterationsPressure responseHemorrhagePuppiesSalineGroup