Featured Publications
Altered expression of platelet proteins and calpain activity mediate hypoxia-induced prothrombotic phenotype
Tyagi T, Ahmad S, Gupta N, Sahu A, Ahmad Y, Nair V, Chatterjee T, Bajaj N, Sengupta S, Ganju L, Singh SB, Ashraf MZ. Altered expression of platelet proteins and calpain activity mediate hypoxia-induced prothrombotic phenotype. Blood 2013, 123: 1250-1260. PMID: 24297866, DOI: 10.1182/blood-2013-05-501924.Peer-Reviewed Original ResearchConceptsCalpain activityPlatelet reactivityProthrombotic phenotypeThrombus formationSoluble P-selectin levelsIncidence of thrombosisP-selectin levelsProthrombotic rolePlatelet hyperreactivitySolid tumorsVivo modelSmall subunit 1ThrombosisPathological conditionsAltered expressionHypoxic conditionsHypoxic environmentPlatelet proteinsHypoxiaExtreme altitudePresent studyCalpain functionPlateletsSubunit 1Phenotype
2019
Venous thrombosis at altitude presents with distinct biochemical profiles: a comparative study from the Himalayas to the plains
Prabhakar A, Chatterjee T, Bajaj N, Tyagi T, Sahu A, Gupta N, Kumari B, Nair V, Kumar B, Ashraf MZ. Venous thrombosis at altitude presents with distinct biochemical profiles: a comparative study from the Himalayas to the plains. Blood Advances 2019, 3: 3713-3723. PMID: 31765479, PMCID: PMC6880906, DOI: 10.1182/bloodadvances.2018024554.Peer-Reviewed Original ResearchConceptsVenous thromboembolismAdhesion molecule-1VTE patientsHA exposureMolecule-1Vascular cell adhesion molecule-1Toll-like receptor 2Intracellular adhesion molecule-1Receiver operator characteristic curve analysisCell adhesion molecule-1Operator characteristic curve analysisMost VTEElevated platelet countVascular endothelial growth factorCharacteristic curve analysisYounger age groupsPlatelet factor 4Endothelial growth factorDistinct biochemical profilesVon Willebrand factorAltered coagulationVTE eventsVenous thrombosisEndothelial activationPlatelet countCELA2A mutations predispose to early-onset atherosclerosis and metabolic syndrome and affect plasma insulin and platelet activation
Esteghamat F, Broughton JS, Smith E, Cardone R, Tyagi T, Guerra M, Szabó A, Ugwu N, Mani MV, Azari B, Kayingo G, Chung S, Fathzadeh M, Weiss E, Bender J, Mane S, Lifton RP, Adeniran A, Nathanson MH, Gorelick FS, Hwa J, Sahin-Tóth M, Belfort-DeAguiar R, Kibbey RG, Mani A. CELA2A mutations predispose to early-onset atherosclerosis and metabolic syndrome and affect plasma insulin and platelet activation. Nature Genetics 2019, 51: 1233-1243. PMID: 31358993, PMCID: PMC6675645, DOI: 10.1038/s41588-019-0470-3.Peer-Reviewed Original ResearchConceptsEarly-onset atherosclerosisMetabolic syndromeMetabolic syndrome traitsWhole-exome sequence analysisAttractive therapeutic targetPlatelet hyperactivationInsulin levelsPlasma insulinPlasma levelsInsulin sensitivityInsulin secretionTherapeutic targetPlatelet activationDisease mechanismsSyndrome traitsAtherosclerosisFunction mutationsSyndromeNovel lossInsulinMutationsSecretion
2018
Genome-Wide Expression Analysis Suggests Hypoxia-Triggered Hyper-Coagulation Leading to Venous Thrombosis at High Altitude
Jha PK, Sahu A, Prabhakar A, Tyagi T, Chatterjee T, Arvind P, Nair J, Gupta N, Kumari B, Nair V, Bajaj N, Shanker J, Sharma M, Kumar B, Ashraf MZ. Genome-Wide Expression Analysis Suggests Hypoxia-Triggered Hyper-Coagulation Leading to Venous Thrombosis at High Altitude. Thrombosis And Haemostasis 2018, 118: 1279-1295. PMID: 29864786, DOI: 10.1055/s-0038-1657770.Peer-Reviewed Original ResearchMeSH KeywordsAdultAltitudeBlood CoagulationBlood Coagulation DisordersCase-Control StudiesGene Expression ProfilingGene Regulatory NetworksGene-Environment InteractionGenetic Predisposition to DiseaseGenome-Wide Association StudyHumansHypoxiaMalePhenotypeRisk AssessmentRisk FactorsTranscriptomeVenous ThrombosisConceptsDeep vein thrombosisGenome-wide expression analysisDifferential expressionVenous thromboembolismEnrichment of genesGenes/pathwaysGene expression profilesHypoxia-responsive genesGene expression profilingRisk factorsGene OntologyOnset of VTEBioinformatics analysisExpression analysisExpression profilingExpression profilesPathway analysisMolecular mechanismsAdditional risk factorsQuantitative reverse transcription polymerase chain reactionReverse transcription-polymerase chain reactionPathophysiology of DVTCommon cardiovascular diseaseRelevant pathwaysGenes
2016
Endothelin-1 Gene Polymorphism and Its Level Predict the Risk of Venous Thromboembolism in Male Indian Population
Kumari B, Prabhakar A, Sahu A, Chatterjee T, Tyagi T, Gupta N, Nair V, Ashraf M. Endothelin-1 Gene Polymorphism and Its Level Predict the Risk of Venous Thromboembolism in Male Indian Population. Clinical And Applied Thrombosis/Hemostasis 2016, 23: 429-437. PMID: 27481876, DOI: 10.1177/1076029616661416.Peer-Reviewed Original ResearchConceptsVenous thromboembolismGene polymorphismsEndothelin-1Plasma levelsHealthy controlsG polymorphismOccurrence of VTEEnzyme (ACE) I/DEndothelial nitric oxide synthaseIndian populationEndothelin-1 gene polymorphismsLogistic regression model analysisEnzyme-linked immunoassay kitNitric oxide synthaseRegression model analysisEndothelial functionClinical progressionVascular functionOxide synthaseG alleleSignificant associationIndividual susceptibilityImmunoassay kitPatientsThromboembolism