2023
A multi-laboratory preclinical trial in rodents to assess treatment candidates for acute ischemic stroke
Lyden P, Diniz M, Bosetti F, Lamb J, Nagarkatti K, Rogatko A, Kim S, Cabeen R, Koenig J, Akhter K, Arbab A, Avery B, Beatty H, Bibic A, Cao S, Simoes Braga Boisserand L, Chamorro A, Chauhan A, Diaz-Perez S, Dhandapani K, Dhanesha N, Goh A, Herman A, Hyder F, Imai T, Johnson C, Khan M, Kamat P, Karuppagounder S, Kumskova M, Mihailovic J, Mandeville J, Morais A, Patel R, Sanganahalli B, Smith C, Shi Y, Sutariya B, Thedens D, Qin T, Velazquez S, Aronowski J, Ayata C, Chauhan A, Leira E, Hess D, Koehler R, McCullough L, Sansing L. A multi-laboratory preclinical trial in rodents to assess treatment candidates for acute ischemic stroke. Science Translational Medicine 2023, 15: eadg8656. PMID: 37729432, DOI: 10.1126/scitranslmed.adg8656.Peer-Reviewed Original ResearchConceptsPreclinical assessmentFocal cerebral ischemic insultAcute ischemic strokeCerebral ischemic insultLarge clinical trialsDiet-induced obesityNew clinical interventionsIntravascular thrombectomyIschemic strokeStroke treatmentHypertensive ratsIschemic insultBlinded assessmentClinical trialsYoung miceTreatment candidatesExclusion criteriaAnimal modelsYoung ratsFutile interventionsPreclinical trialsClinical interventionsFutility boundariesMiceDisease areasA consensus protocol for functional connectivity analysis in the rat brain
Grandjean J, Desrosiers-Gregoire G, Anckaerts C, Angeles-Valdez D, Ayad F, Barrière D, Blockx I, Bortel A, Broadwater M, Cardoso B, Célestine M, Chavez-Negrete J, Choi S, Christiaen E, Clavijo P, Colon-Perez L, Cramer S, Daniele T, Dempsey E, Diao Y, Doelemeyer A, Dopfel D, Dvořáková L, Falfán-Melgoza C, Fernandes F, Fowler C, Fuentes-Ibañez A, Garin C, Gelderman E, Golden C, Guo C, Henckens M, Hennessy L, Herman P, Hofwijks N, Horien C, Ionescu T, Jones J, Kaesser J, Kim E, Lambers H, Lazari A, Lee S, Lillywhite A, Liu Y, Liu Y, López -Castro A, López-Gil X, Ma Z, MacNicol E, Madularu D, Mandino F, Marciano S, McAuslan M, McCunn P, McIntosh A, Meng X, Meyer-Baese L, Missault S, Moro F, Naessens D, Nava-Gomez L, Nonaka H, Ortiz J, Paasonen J, Peeters L, Pereira M, Perez P, Pompilus M, Prior M, Rakhmatullin R, Reimann H, Reinwald J, Del Rio R, Rivera-Olvera A, Ruiz-Pérez D, Russo G, Rutten T, Ryoke R, Sack M, Salvan P, Sanganahalli B, Schroeter A, Seewoo B, Selingue E, Seuwen A, Shi B, Sirmpilatze N, Smith J, Smith C, Sobczak F, Stenroos P, Straathof M, Strobelt S, Sumiyoshi A, Takahashi K, Torres-García M, Tudela R, van den Berg M, van der Marel K, van Hout A, Vertullo R, Vidal B, Vrooman R, Wang V, Wank I, Watson D, Yin T, Zhang Y, Zurbruegg S, Achard S, Alcauter S, Auer D, Barbier E, Baudewig J, Beckmann C, Beckmann N, Becq G, Blezer E, Bolbos R, Boretius S, Bouvard S, Budinger E, Buxbaum J, Cash D, Chapman V, Chuang K, Ciobanu L, Coolen B, Dalley J, Dhenain M, Dijkhuizen R, Esteban O, Faber C, Febo M, Feindel K, Forloni G, Fouquet J, Garza-Villarreal E, Gass N, Glennon J, Gozzi A, Gröhn O, Harkin A, Heerschap A, Helluy X, Herfert K, Heuser A, Homberg J, Houwing D, Hyder F, Ielacqua G, Jelescu I, Johansen-Berg H, Kaneko G, Kawashima R, Keilholz S, Keliris G, Kelly C, Kerskens C, Khokhar J, Kind P, Langlois J, Lerch J, López-Hidalgo M, Manahan-Vaughan D, Marchand F, Mars R, Marsella G, Micotti E, Muñoz-Moreno E, Near J, Niendorf T, Otte W, Pais-Roldán P, Pan W, Prado-Alcalá R, Quirarte G, Rodger J, Rosenow T, Sampaio-Baptista C, Sartorius A, Sawiak S, Scheenen T, Shemesh N, Shih Y, Shmuel A, Soria G, Stoop R, Thompson G, Till S, Todd N, Van Der Linden A, van der Toorn A, van Tilborg G, Vanhove C, Veltien A, Verhoye M, Wachsmuth L, Weber-Fahr W, Wenk P, Yu X, Zerbi V, Zhang N, Zhang B, Zimmer L, Devenyi G, Chakravarty M, Hess A. A consensus protocol for functional connectivity analysis in the rat brain. Nature Neuroscience 2023, 26: 673-681. PMID: 36973511, PMCID: PMC10493189, DOI: 10.1038/s41593-023-01286-8.Peer-Reviewed Original Research
2022
EEG–fMRI in Animal Models
Gummadavelli A, Sanganahalli B, Herman P, Hyder F, Blumenfeld H. EEG–fMRI in Animal Models. 2022, 663-694. DOI: 10.1007/978-3-031-07121-8_27.Peer-Reviewed Original ResearchFunctional magnetic resonance imagingSimultaneous EEG-fMRI studyEEG-fMRI studiesAnimal modelsMetabolic changesModality of choiceMagnetic resonance imagingEEG-fMRIDeep brain structuresInvasive studiesNeuronal activityHuman studiesSensory-motor processingNeuronal functionResonance imagingNeuronal processesBrain structuresSimultaneous EEG-fMRIImproved treatmentNeuroimaging signalsSoft tissueElectrical activityNeuronal networksExcellent temporal resolutionFMRI signals
2021
Small loci of astroglial glutamine synthetase deficiency in the postnatal brain cause epileptic seizures and impaired functional connectivity
Farina MG, Sandhu MRS, Parent M, Sanganahalli BG, Derbin M, Dhaher R, Wang H, Zaveri HP, Zhou Y, Danbolt NC, Hyder F, Eid T. Small loci of astroglial glutamine synthetase deficiency in the postnatal brain cause epileptic seizures and impaired functional connectivity. Epilepsia 2021, 62: 2858-2870. PMID: 34536233, PMCID: PMC9006438, DOI: 10.1111/epi.17072.Peer-Reviewed Original ResearchConceptsPostnatal brainFunctional connectivityContinuous video-electroencephalographic recordingSpontaneous recurrent seizuresPathogenesis of epilepsyGlutamine synthetase deficiencyVideo-electroencephalographic recordingsSpecific animal modelsEx vivo studySeizure thresholdAdult patientsRecurrent seizuresFocal epilepsyAdeno-associated virusHippocampal formationAnimal modelsFocal mannerEpileptic seizuresGS deficiencySmall lociSynthetase deficiencyEpilepsyGradual returnVivo studiesBrain
2015
Rhythmic 3–4Hz discharge is insufficient to produce cortical BOLD fMRI decreases in generalized seizures
Youngblood MW, Chen WC, Mishra AM, Enamandram S, Sanganahalli BG, Motelow JE, Bai HX, Frohlich F, Gribizis A, Lighten A, Hyder F, Blumenfeld H. Rhythmic 3–4Hz discharge is insufficient to produce cortical BOLD fMRI decreases in generalized seizures. NeuroImage 2015, 109: 368-377. PMID: 25562830, PMCID: PMC4340775, DOI: 10.1016/j.neuroimage.2014.12.066.Peer-Reviewed Original ResearchConceptsHz spike-wave dischargesSpike-wave dischargesFMRI decreasesSpike-wave seizuresAnimal modelsHuman patientsMagnetic resonance imaging studyTonic-clonic seizuresBlood oxygen level-dependent (BOLD) signalResonance imaging studyFunctional magnetic resonance imaging studyHuman functional magnetic resonance imaging (fMRI) studiesGeneralized seizuresFerret modelCortical decreasesAbsence seizuresCortical developmentAnesthetic regimeSeizuresTransient episodesHuman seizuresImaging studiesPatientsBOLD fMRISimultaneous electroencephalography
2013
Increased resting functional connectivity in spike‐wave epilepsy in WAG/Rij rats
Mishra AM, Bai X, Motelow JE, DeSalvo MN, Danielson N, Sanganahalli BG, Hyder F, Blumenfeld H. Increased resting functional connectivity in spike‐wave epilepsy in WAG/Rij rats. Epilepsia 2013, 54: 1214-1222. PMID: 23815571, PMCID: PMC3703864, DOI: 10.1111/epi.12227.Peer-Reviewed Original ResearchConceptsSpike-wave dischargesWAG/RijFunctional connectivityNonepileptic controlsAbsence epilepsyEpileptic WAG/RijBrain networksWAG/Rij ratsChronic seizure activitySpike-wave epilepsyHuman absence seizuresChildhood absence epilepsyWistar Albino GlaxoActivity-dependent plasticityCortical-cortical connectivityFunctional magnetic resonance imagingMagnetic resonance imagingNonepileptic animalsSeizure activitySpontaneous episodesWistar controlsAbsence seizuresAdjacent cortexChronic changesAnimal models
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 modelsRole of Ongoing, Intrinsic Activity of Neuronal Populations for Quantitative Neuroimaging of Functional Magnetic Resonance Imaging–Based Networks
Hyder F, Herman P, Sanganahalli BG, Coman D, Blumenfeld H, Rothman DL. Role of Ongoing, Intrinsic Activity of Neuronal Populations for Quantitative Neuroimaging of Functional Magnetic Resonance Imaging–Based Networks. Brain Connectivity 2011, 1: 185-193. PMID: 22433047, PMCID: PMC3621320, DOI: 10.1089/brain.2011.0032.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingEnergy/activityMagnetic resonance imagingBOLD signalNeuronal activityQuantitative neuroimagingNeuronal populationsResonance imagingBaseline BOLD signalsTotal neuronal activityBlood oxygenation level-dependent (BOLD) signalLevel-dependent signalResting-state fMRI experimentsAnimal modelsFMRI experimentMagnetic resonance spectroscopy measurementsBrain networksBaselineNeuroimagingPrimary objectiveImagingIntrinsic activityActivityPopulation
2009
Tactile and Non-tactile Sensory Paradigms for fMRI and Neurophysiologic Studies in Rodents
Sanganahalli BG, Bailey CJ, Herman P, Hyder F. Tactile and Non-tactile Sensory Paradigms for fMRI and Neurophysiologic Studies in Rodents. Methods In Molecular Biology 2009, 489: 213-242. PMID: 18839094, PMCID: PMC3703391, DOI: 10.1007/978-1-59745-543-5_10.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingBlood oxygenation level-dependent (BOLD) signal changesDifferent peripheral stimuliSensory paradigmsLevel-dependent signal changesFunctional imaging toolMagnetic resonance imagingBOLD signal changesDependent signal changesCortical perceptionSignal changesNeurophysiologic studiesAnesthetized ratsNeuronal activityStimulation protocolPeripheral stimuliPharmacological agentsHuman studiesAnimal modelsFuture diagnostic useVariety of modalitiesResonance imagingInvasive natureNeurophysiologic markersSensory systems