2023
Spatiotemporal features of neurovascular (un)coupling with stimulus-induced activity and hypercapnia challenge in cerebral cortex and olfactory bulb
James S, Sanggaard S, Akif A, Mishra S, Sanganahalli B, Blumenfeld H, Verhagen J, Hyder F, Herman P. Spatiotemporal features of neurovascular (un)coupling with stimulus-induced activity and hypercapnia challenge in cerebral cortex and olfactory bulb. Cerebrovascular And Brain Metabolism Reviews 2023, 43: 1891-1904. PMID: 37340791, PMCID: PMC10676132, DOI: 10.1177/0271678x231183887.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCarbon DioxideCerebral CortexCerebrovascular CirculationHypercapniaMiceNeurovascular CouplingOlfactory BulbConceptsVasodilatory responseCerebral cortexNeurovascular couplingOlfactory bulbNeuronal activityBrief sensory stimuliRegional neurovascular couplingStimulus-induced activityHypercapnia challengeVascular toneNeuronal deactivationHemodynamic responseNeuronal excitabilityNeuronal responsesCalcium transientsBrain functionHemodynamic signalsSensory stimuliVasodilationHypercapniaCortexMiceCareful appraisalStimuliMetabolic wasteDecreased but diverse activity of cortical and thalamic neurons in consciousness-impairing rodent absence seizures
McCafferty C, Gruenbaum B, Tung R, Li J, Zheng X, Salvino P, Vincent P, Kratochvil Z, Ryu J, Khalaf A, Swift K, Akbari R, Islam W, Antwi P, Johnson E, Vitkovskiy P, Sampognaro J, Freedman I, Kundishora A, Depaulis A, David F, Crunelli V, Sanganahalli B, Herman P, Hyder F, Blumenfeld H. Decreased but diverse activity of cortical and thalamic neurons in consciousness-impairing rodent absence seizures. Nature Communications 2023, 14: 117. PMID: 36627270, PMCID: PMC9832004, DOI: 10.1038/s41467-022-35535-4.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCerebral CortexConsciousnessElectroencephalographyEpilepsy, AbsenceFemaleHumansNeuronsRatsRodentiaSeizuresThalamusConceptsThalamic neuronsAbsence seizuresSeizure onsetNeuronal firingConsciousness-impairing seizuresFemale rat modelLow-frequency electroencephalographic activityFunctional magnetic resonanceBehavioral arrestRat modelRhythmic firingTransient initial peakFiring increasesSeizuresNeuronal mechanismsElectroencephalographic activityNeuronsBrain state changesBrief episodesFiring decreasesInitial peakFiringMagnetic resonanceDistinct patternsOnset
2015
Distribution of temperature changes and neurovascular coupling in rat brain following 3,4‐methylenedioxymethamphetamine (MDMA, “ecstasy”) exposure
Coman D, Sanganahalli BG, Jiang L, Hyder F, Behar KL. Distribution of temperature changes and neurovascular coupling in rat brain following 3,4‐methylenedioxymethamphetamine (MDMA, “ecstasy”) exposure. NMR In Biomedicine 2015, 28: 1257-1266. PMID: 26286889, PMCID: PMC4573923, DOI: 10.1002/nbm.3375.Peer-Reviewed Original ResearchConceptsNeurovascular couplingBlood flowNeuronal activityNeural activityWhole-body hyperthermiaAbused psychostimulantMethylenedioxymethamphetamine (MDMA) exposureNeurovascular responseCortex temperatureMDMA effectsRat cortexRat brainBrain temperatureSubcortical regionsBrain regionsCortexSubcortexMDMA actionSkeletal muscleMonoaminergic stimulationBrainMDMACBFBody temperatureThermogenesis
2011
Where fMRI and Electrophysiology Agree to Disagree: Corticothalamic and Striatal Activity Patterns in the WAG/Rij Rat
Mishra AM, Ellens DJ, Schridde U, Motelow JE, Purcaro MJ, DeSalvo MN, Enev M, Sanganahalli BG, Hyder F, Blumenfeld H. Where fMRI and Electrophysiology Agree to Disagree: Corticothalamic and Striatal Activity Patterns in the WAG/Rij Rat. Journal Of Neuroscience 2011, 31: 15053-15064. PMID: 22016539, PMCID: PMC3432284, DOI: 10.1523/jneurosci.0101-11.2011.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrainBrain MappingBrain WavesCerebral CortexCerebrovascular CirculationCorpus StriatumDisease Models, AnimalElectroencephalographyElectrophysiologyEpilepsyImage Processing, Computer-AssistedLaser-Doppler FlowmetryMagnetic Resonance ImagingNicotinic AntagonistsOxygenRatsRats, WistarThalamusTubocurarineVibrissaeConceptsCerebral blood flowCerebral blood volumeLocal field potentialsNeuronal activityLaser Doppler cerebral blood flowSubcortical structuresWAG/Rij ratsNeuronal activity decreasesHuman absence epilepsySpike-wave dischargesWAG/RijMultiunit activity recordingsFMRI signalsFunctional magnetic resonance imaging (fMRI) signalsMagnetic resonance imaging signalsFMRI decreasesCBF decreaseHemodynamic changesCerebral cortexBasal gangliaSomatosensory cortexAbsence epilepsyWhisker stimulationBlood flowAnimal models
2006
NMDA and non-NMDA receptors stimulation causes differential oxidative stress in rat cortical slices
Sanganahalli B, Joshi P, Joshi N. NMDA and non-NMDA receptors stimulation causes differential oxidative stress in rat cortical slices. Neurochemistry International 2006, 49: 475-480. PMID: 16860439, DOI: 10.1016/j.neuint.2006.03.006.Peer-Reviewed Original ResearchConceptsNon-NMDA receptorsAdult slicesReactive oxygen species formationNon-NMDAReactive oxygen speciesReceptor stimulationGlutamate receptorsNeuronal cell deathGlutamate-induced neuronal injuryGlutamate mediated neurotoxicityGlutamate receptor agonist NMDACell deathInflux of Ca(2+Mitochondrial depolarizationReceptor agonist NMDAFormation of reactive oxygen speciesNMDA receptor stimulationTreatment of slicesAge groupsAntagonist APVAgonist NMDAYoung slicesCortical slicesNMDA stimulationKA stimulation
2005
Xanthine oxidase, nitric oxide synthase and phospholipase A2 produce reactive oxygen species via mitochondria
Sanganahalli B, Joshi P, Joshi N. Xanthine oxidase, nitric oxide synthase and phospholipase A2 produce reactive oxygen species via mitochondria. Brain Research 2005, 1037: 200-203. PMID: 15777770, DOI: 10.1016/j.brainres.2005.01.013.Peer-Reviewed Original ResearchConceptsMitochondrial depolarizationReactive oxygen speciesReactive oxygen species formationROS formationGlutamate-induced oxidative stressOxygen speciesDepolarized mitochondriaCytoplasmic enzymeFormation of reactive oxygen speciesNitric oxide synthaseRat cortical slicesL-NAMEMitochondriaPhospholipase A(2Presence of allopurinolSpeciesEnzymeAssociated with excitotoxicityCortical slicesPLA(2PhospholipasePhospholipase A2Xanthine oxidaseSynthaseOxidative stress
2004
Glutamate-induced differential mitochondrial response in young and adult rats
Kannurpatti S, Sanganahalli B, Mishra S, Joshi P, Joshi N. Glutamate-induced differential mitochondrial response in young and adult rats. Neurochemistry International 2004, 44: 361-369. PMID: 14643754, DOI: 10.1016/s0197-0186(03)00164-5.Peer-Reviewed Original ResearchConceptsAdult ratsLDH releaseYoung ratsIntracellular calciumLactate dehydrogenaseReactive oxygen speciesExcitatory amino acid glutamateIntracellular calcium changesGlutamate-induced increaseTreatment of slicesGlutamate-induced decreaseAge groupsInfluence of glutamateMitochondrial depolarizationAmino acid glutamateMitochondrial inhibitor rotenoneCortical slicesCalcium changesReactive oxygen species formationNeuronal cell deathGlutamate stimulationGlutamate treatmentMitochondrial functionAcid glutamateCa(2+