2022
Studies on metabolic alterations due to hypobaric hypoxia in serum using NMR spectroscopy
Koundal S, Gandhi S, Khushu S. Studies on metabolic alterations due to hypobaric hypoxia in serum using NMR spectroscopy. Biomarkers 2022, 27: 562-567. PMID: 35532034, DOI: 10.1080/1354750x.2022.2076152.Peer-Reviewed Original ResearchConceptsHypobaric hypoxiaHypobaric hypoxia equivalentSerum metabolic changesPreclinical rat modelAmino acid metabolitesHigh-altitude hypoxiaHypoxia equivalentRat modelMetabolic alterationsHealth problemsKetone bodiesMultivariate analysisAcid metabolitesAltitude hypoxiaSerum samplesEarly detectionMetabolic changesHypoxiaMetabolism of membranePresent findingsSerumAlterationsCellular bioenergeticsPresent studyEnvironmental hypoxia
2015
“Omics” of High Altitude Biology: A Urinary Metabolomics Biomarker Study of Rats Under Hypobaric Hypoxia
Koundal S, Gandhi S, Kaur T, Mazumder A, Khushu S. “Omics” of High Altitude Biology: A Urinary Metabolomics Biomarker Study of Rats Under Hypobaric Hypoxia. OMICS A Journal Of Integrative Biology 2015, 19: 757-765. PMID: 26669710, DOI: 10.1089/omi.2015.0155.Peer-Reviewed Original ResearchConceptsHypobaric hypoxiaSports medicineHypobaric hypoxia exposurePreclinical rat modelHigh altitude medicineAltitude medicineCell membrane metabolismUse of metabolomicsUrinary metabolomeHepatic functionLiver histopathologyRat modelLiver functioningHypoxia exposureHealth problemsMultivariate analysisPotential biomarkersAttendant health problemsTCA cycle metabolitesBiomarker studiesHypoxiaUrine samplesTaurine metabolismMembrane metabolismCycle metabolitesInvestigation of prolonged hypobaric hypoxia-induced change in rat brain using T2 relaxometry and diffusion tensor imaging at 7T
Koundal S, Gandhi S, Kaur T, Trivedi R, Khushu S. Investigation of prolonged hypobaric hypoxia-induced change in rat brain using T2 relaxometry and diffusion tensor imaging at 7T. Neuroscience 2015, 289: 106-113. PMID: 25592421, DOI: 10.1016/j.neuroscience.2014.12.049.Peer-Reviewed Original ResearchConceptsCorpus callosumDiffusion tensor imagingHH exposureADC valuesEdema formationT2 relaxometryGroups of ratsApparent diffusion coefficient (ADC) changesCytotoxic edema formationHypoxia-induced changesWater diffusion changesCytotoxic edemaHippocampal regionRat brainHH groupT2 valuesIron depositionTensor imagingRatsMagnetic resonance imaging modalitiesImaging modalitiesDiffusion changesHippocampusDiffusion tensorMRI modalities
2014
Neurometabolic and structural alterations in rat brain due to acute hypobaric hypoxia: in vivo 1H MRS at 7 T
Koundal S, Gandhi S, Kaur T, Khushu S. Neurometabolic and structural alterations in rat brain due to acute hypobaric hypoxia: in vivo 1H MRS at 7 T. NMR In Biomedicine 2014, 27: 341-347. PMID: 24395642, DOI: 10.1002/nbm.3068.Peer-Reviewed Original ResearchConceptsAcute hypobaric hypoxiaHypobaric hypoxiaRat brainHH exposureCA2/CA3 regionDays of normoxiaMetabolite levelsProcess of demyelinationMyo-inositol levelsDays post exposureVivo 1H MRSEarly risk assessmentGlutamatergic neuronsNeurometabolic changesAstrocyte metabolismCA3 regionN-acetylaspartateHippocampus regionMetabolic alterationsPost exposureMetabolic changesNormoxiaBrainFourth dayFirst day