Basavaraju Sanganahalli, PhD
Research Scientist in Radiology and Biomedical ImagingCards
About
Titles
Research Scientist in Radiology and Biomedical Imaging
Director, Small Animal MRI Core, Magnetic Resonance Research CenterBiography
My expertise in combining neurophysiology with fMRI brings a novel combination of tools and a unique perspective to understand brain function during physiology and pathology. My current research is focused on understanding of the biophysics of brain functioning and facilitating the translation of basic science research to various clinical applications (e.g., healthy aging, Alzheimer’s disease, epilepsy, early life stress, schizophrenia, stroke, mild traumatic brain injury, Spinal cord injury).
Appointments
Radiology & Biomedical Imaging
Research ScientistPrimary
Other Departments & Organizations
Education & Training
- PhD
- National Institute of Mental Health and Neuroscience, Neuroscience (2004)
- MPhil
- National Institute of Mental health and Neurosciences, Biophysics (1997)
- MS
- Bangalore University, Physics (1995)
- BS
- Bangalore University, Electronics (1993)
Research
Publications
2022
Thalamic activations in rat brain by fMRI during tactile (forepaw, whisker) and non-tactile (visual, olfactory) sensory stimulations
Sanganahalli BG, Thompson GJ, Parent M, Verhagen JV, Blumenfeld H, Herman P, Hyder F. Thalamic activations in rat brain by fMRI during tactile (forepaw, whisker) and non-tactile (visual, olfactory) sensory stimulations. PLOS ONE 2022, 17: e0267916. PMID: 35522646, PMCID: PMC9075615, DOI: 10.1371/journal.pone.0267916.Peer-Reviewed Original ResearchConceptsDorsal lateral geniculate nucleusVentral posterior medialVentral posterior lateralThalamic activationFunctional MRIPosterior medial thalamic nucleusMedial thalamic nucleiSensory stimuliLateral geniculate nucleusPost-mortem humanOlfactory stimuliHigh-field functional MRIField functional MRIWhisker stimuliDeep brain regionsRat thalamusThalamic nucleiGeniculate nucleusMediodorsal nucleusRat brainInferior colliculusThalamusDifferent sensory stimuliCortical activationCortical activityThe Stroke Preclinical Assessment Network: Rationale, Design, Feasibility, and Stage 1 Results
Lyden PD, Bosetti F, Diniz MA, Rogatko A, Koenig JI, Lamb J, Nagarkatti KA, Cabeen RP, Hess DC, Kamat PK, Khan MB, Wood K, Dhandapani K, Arbab AS, Leira EC, Chauhan AK, Dhanesha N, Patel RB, Kumskova M, Thedens D, Morais A, Imai T, Qin T, Ayata C, Boisserand LSB, Herman AL, Beatty HE, Velazquez SE, Diaz-Perez S, Sanganahalli BG, Mihailovic JM, Hyder F, Sansing LH, Koehler RC, Lannon S, Shi Y, Karuppagounder SS, Bibic A, Akhter K, Aronowski J, McCullough LD, Chauhan A, Goh A, Siddiqui S, Sheth K, Matouk C, Cruz C, Zhou J, Dawson V, Dawson T, Liang J, van Zijl P, Zeiler S, Taylor Kimberly W, Erdogan T, Yu L, Mandeville J, Whittier J. The Stroke Preclinical Assessment Network: Rationale, Design, Feasibility, and Stage 1 Results. Stroke 2022, 53: 1802-1812. PMID: 35354299, PMCID: PMC9038686, DOI: 10.1161/strokeaha.121.038047.Peer-Reviewed Original ResearchConceptsPreclinical assessmentStroke treatmentCandidate treatmentMiddle cerebral artery occlusion (MCAO) surgeryClinical stroke trialsSuccessful stroke treatmentInclusion/exclusion criteriaStroke clinical trialsClinical trial designYoung male animalsComorbid diseasesOcclusion surgeryCerebral ischemiaNeurological disabilityComorbid conditionsStroke trialsProtocol adherenceBlinded assessmentSuch therapyClinical trialsClinical studiesExclusion criteriaTrial designAged animalsOutcome assessment
2021
Supraspinal Sensorimotor and Pain-Related Reorganization after a Hemicontusion Rat Cervical Spinal Cord Injury
Sanganahalli BG, Chitturi J, Herman P, Elkabes S, Heary R, Hyder F, Kannurpatti SS. Supraspinal Sensorimotor and Pain-Related Reorganization after a Hemicontusion Rat Cervical Spinal Cord Injury. Journal Of Neurotrauma 2021, 38: 3393-3405. PMID: 34714150, PMCID: PMC8713267, DOI: 10.1089/neu.2021.0190.Peer-Reviewed Original ResearchConceptsSpinal cord injuryCervical spinal cord injuryAnterior cingulate cortexFunctional magnetic resonance imagingPre-frontal cortexNociceptive regionsCord injuryPresence of painSecondary somatosensory cortexFunctional connectivity densityElectrical forepaw stimulationFemale adult ratsTranslational animal modelsMost cortical regionsMagnetic resonance imagingDiscernable lesionsIpsilesional forelimbKdyn forceRSFC decreasesRsFC increasesSupraspinal changesMotor recoveryThermal hyperalgesiaT2 lesionsPain behaviorSmall 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
2020
Association Between Magnetic Resonance Imaging-Based Spinal Morphometry and Sensorimotor Behavior in a Hemicontusion Model of Incomplete Cervical Spinal Cord Injury in Rats
Chitturi J, Sanganahalli BG, Herman P, Hyder F, Ni L, Elkabes S, Heary R, Kannurpatti SS. Association Between Magnetic Resonance Imaging-Based Spinal Morphometry and Sensorimotor Behavior in a Hemicontusion Model of Incomplete Cervical Spinal Cord Injury in Rats. Brain Connectivity 2020, 10: 479-489. PMID: 32981350, PMCID: PMC7698856, DOI: 10.1089/brain.2020.0812.Peer-Reviewed Original ResearchConceptsNeurological outcomeFunctional connectivity changesSpinal cordMagnetic resonance imagingComplete neural axisNeural axisCervical SCIMorphometric changesIncomplete cervical spinal cord injuryC4/C5 levelResonance imagingCervical spinal cord injurySpinal cord injury patientsFunctional connectivityConnectivity changesCord injury patientsT2-weighted lesionsCervical spinal cordSpinal cord injuryYoung adult ratsFunctional connectivity assessmentC5 levelSCI ratsInjury patientsSham ratsAPOE genotype-dependent pharmacogenetic responses to rapamycin for preventing Alzheimer's disease
Lin AL, Parikh I, Yanckello LM, White RS, Hartz AMS, Taylor CE, McCulloch SD, Thalman SW, Xia M, McCarty K, Ubele M, Head E, Hyder F, Sanganahalli BG. APOE genotype-dependent pharmacogenetic responses to rapamycin for preventing Alzheimer's disease. Neurobiology Of Disease 2020, 139: 104834. PMID: 32173556, PMCID: PMC7486698, DOI: 10.1016/j.nbd.2020.104834.Peer-Reviewed Original ResearchConceptsCerebral blood flowAsymptomatic APOE4 carriersE4FAD miceAPOE4 carriersAlzheimer's diseaseCerebrovascular reactivityNeurotransmitter levelsE3FAD micePharmacogenetic responsePharmacogenetic differencesSomatosensory responsesBlood-brain barrier functionBrain functionStrongest genetic risk factorBrain metabolic changesFree fatty acid levelsAmyloid-beta plaquesHuman APOE4 geneDifferent APOE allelesAPOE ε3 alleleFuture clinical testingGenetic risk factorsFatty acid levelsWhite matter integrityAβ transportOrthonasal versus retronasal glomerular activity in rat olfactory bulb by fMRI
Sanganahalli BG, Baker KL, Thompson GJ, Herman P, Shepherd GM, Verhagen JV, Hyder F. Orthonasal versus retronasal glomerular activity in rat olfactory bulb by fMRI. NeuroImage 2020, 212: 116664. PMID: 32087375, PMCID: PMC9362851, DOI: 10.1016/j.neuroimage.2020.116664.Peer-Reviewed Original ResearchConceptsRat olfactory bulbOlfactory bulbWhole olfactory bulbOlfactory receptor neuronsFunctional MRINasal cavityRetronasal stimuliGlomerular sheetDorsal-medial regionsDelivery routeRetronasal stimulationSimilar response amplitudesGlomerular activityFMRI activation mapsSame odorReceptor neuronsDorsal regionNeural responsesOdor representationsLateral regionsSame odorantOrthonasalUnderlie differencesResponse amplitudeResponse patternsKaempferol Treatment after Traumatic Brain Injury during Early Development Mitigates Brain Parenchymal Microstructure and Neural Functional Connectivity Deterioration at Adolescence
Parent M, Chitturi J, Santhakumar V, Hyder F, Sanganahalli BG, Kannurpatti SS. Kaempferol Treatment after Traumatic Brain Injury during Early Development Mitigates Brain Parenchymal Microstructure and Neural Functional Connectivity Deterioration at Adolescence. Journal Of Neurotrauma 2020, 37: 966-974. PMID: 31830867, PMCID: PMC7175625, DOI: 10.1089/neu.2019.6486.Peer-Reviewed Original ResearchConceptsTraumatic brain injuryKaempferol treatmentDiffusion tensor imagingFractional anisotropyBrain injuryParenchymal microstructureCallosal fractional anisotropyInterhemispheric structural connectivityH post-TBINeural connectivitySelect brain regionsFunctional magnetic resonance imagingMagnetic resonance imagingTBI prognosisCerebrovascular reactivityFunctional outcomeImaging outcomesNeurovascular couplingPost-TBITBI outcomesTBI pathophysiologyMetabolic benefitsResting-state functional connectivity networksRsFC changesWhole brain
2018
Alterations of Parenchymal Microstructure, Neuronal Connectivity, and Cerebrovascular Resistance at Adolescence after Mild-to-Moderate Traumatic Brain Injury in Early Development
Parent M, Li Y, Santhakumar V, Hyder F, Sanganahalli BG, Kannurpatti SS. Alterations of Parenchymal Microstructure, Neuronal Connectivity, and Cerebrovascular Resistance at Adolescence after Mild-to-Moderate Traumatic Brain Injury in Early Development. Journal Of Neurotrauma 2018, 36: 601-608. PMID: 29855211, PMCID: PMC6354598, DOI: 10.1089/neu.2018.5741.Peer-Reviewed Original ResearchConceptsTraumatic brain injuryDevelopmental traumatic brain injuryResting-state functional connectivityDiffusion tensor imagingCerebrovascular resistanceIpsilateral hippocampusBrain injuryLateral fluid percussion traumatic brain injuryFluid percussion traumatic brain injuryNeuronal connectivityFunctional MRIModerate traumatic brain injuryParenchymal microstructureInterhemispheric structural connectivityFluid percussion injuryCortical blood flowNeural connectivityMicrostructural integrityInterhemispheric asymmetryIpsilateral thalamusNeurovascular functionCerebrovascular reactivityMotor cortexRSFC strengthSubcortical alterationsSpontaneous activity forms a foundation for odor-evoked activation maps in the rat olfactory bulb
Thompson GJ, Sanganahalli BG, Baker KL, Herman P, Shepherd GM, Verhagen JV, Hyder F. Spontaneous activity forms a foundation for odor-evoked activation maps in the rat olfactory bulb. NeuroImage 2018, 172: 586-596. PMID: 29374582, PMCID: PMC5910178, DOI: 10.1016/j.neuroimage.2018.01.051.Peer-Reviewed Original Research