2015
Role of mitochondrial calcium uptake homeostasis in resting state fMRI brain networks
Kannurpatti SS, Sanganahalli BG, Herman P, Hyder F. Role of mitochondrial calcium uptake homeostasis in resting state fMRI brain networks. NMR In Biomedicine 2015, 28: 1579-1588. PMID: 26439799, PMCID: PMC4621005, DOI: 10.1002/nbm.3421.Peer-Reviewed Original ResearchConceptsSimilar dose-dependent decreaseDose-dependent decreaseCaudate putamenBrain regionsBlood oxygen level-dependent fluctuationsBrain energy metabolismLevel-dependent fluctuationsBrain functional organizationSomatosensory cortexAnesthetized ratsDifferent functional networksFunctional organizationDrug treatmentVascular densityHippocampal regionThalamic regionsDifferent physiological impactsBOLD fluctuationsRSFC networksIntrinsic activityState fMRINeural signalingBrain networksPutamenFMRI brain networks
2013
Mitochondrial Functional State Impacts Spontaneous Neocortical Activity and Resting State fMRI
Sanganahalli BG, Herman P, Hyder F, Kannurpatti SS. Mitochondrial Functional State Impacts Spontaneous Neocortical Activity and Resting State fMRI. PLOS ONE 2013, 8: e63317. PMID: 23650561, PMCID: PMC3641133, DOI: 10.1371/journal.pone.0063317.Peer-Reviewed Original ResearchConceptsSpontaneous neuronal activityNeuronal activityCerebral blood flow fluctuationsFunctional connectivityRelevant translational modelState functional connectivityTraumatic brain injuryBlood flow fluctuationsIntrinsic brain activityBrain functional connectivityResting-state fMRIMitochondrial functional stateNeuronal electrical activityFunctional stateReduced RSFCNeural metabolismBrain injuryHemodynamic fluctuationsHemodynamic responseMCU inhibitionNeocortical activityBOLD fluctuationsTranslational modelState fMRIBOLD responseMitochondrial Calcium Uptake Capacity Modulates Neocortical Excitability
Sanganahalli BG, Herman P, Hyder F, Kannurpatti SS. Mitochondrial Calcium Uptake Capacity Modulates Neocortical Excitability. Cerebrovascular And Brain Metabolism Reviews 2013, 33: 1115-1126. PMID: 23591650, PMCID: PMC3705442, DOI: 10.1038/jcbfm.2013.61.Peer-Reviewed Original ResearchConceptsSensory-evoked cortical activityCentral nervous system metabolismCerebral blood flowCortical neuronal activityStimulus-evoked responsesCentral nervous systemBlood oxygen level dependenceNeocortical excitabilityBrain signalingHemodynamic responseBlood flowNeuronal activityNervous systemCortical activityNeocortical activityCalcium changesExtracellular electrophysiologyMCU activityMCU inhibitorVivo impactVivo mitochondriaDependent mannerMultiple subcellular compartmentsRole of mitochondriaUniporter activity
2009
Cerebral oxygen demand for short‐lived and steady‐state events
Herman P, Sanganahalli BG, Blumenfeld H, Hyder F. Cerebral oxygen demand for short‐lived and steady‐state events. Journal Of Neurochemistry 2009, 109: 73-79. PMID: 19393011, PMCID: PMC2714475, DOI: 10.1111/j.1471-4159.2009.05844.x.Peer-Reviewed Original Research
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+