2011
Association of Genetic Variation in the Catechol-O-Methyl Transferase Gene with Pain and Six Minute Walk Distance in Sickle Cell Anemia Patients From the Walk-PHaSST Study
Zhang Y, Zeng Q, Belfer I, Goel R, Porter M, Chu Y, Barst R, Hassell K, Machado R, Goldsmith J, Gladwin M, Krishnamurti L. Association of Genetic Variation in the Catechol-O-Methyl Transferase Gene with Pain and Six Minute Walk Distance in Sickle Cell Anemia Patients From the Walk-PHaSST Study. Blood 2011, 118: 1075. DOI: 10.1182/blood.v118.21.1075.1075.Peer-Reviewed Original ResearchSickle cell diseaseAcute pain crisisChronic painPain crisisPain phenotypesPain rateSCD painSevere painPain sensitivitySingle nucleotide polymorphismsAG genotype carriersChronic pain ratesSickle cell anemia patientsType of painAfrican American patientsGenetic factorsDescription of painLogistic regression analysisLower pain sensitivityCOMT genetic variantsChi-square testMultinomial logistic regression analysisCatechol-O-methyl transferase (COMT) genePain episodesMild pain
2010
Predictors of Six-Minute Walk Distance In Adults with Sickle Cell Anemia In the Walk-PHaSST Study
Barst R, Kato G, Sachdev V, Nouraie M, Machado R, Hassell K, Gibbs S, Little J, Schraufnagel D, Krishnamurti L, Girgis R, Morris C, Badesch D, Lanzkron S, Castro O, Rosenzweig E, Goldsmith J, Gladwin M, Gordeuk V. Predictors of Six-Minute Walk Distance In Adults with Sickle Cell Anemia In the Walk-PHaSST Study. Blood 2010, 116: 947. DOI: 10.1182/blood.v116.21.947.947.Peer-Reviewed Original ResearchHigher tricuspid regurgitation velocityTricuspid regurgitation velocitySickle cell diseaseSickle cell anemiaRight ventricular systolic pressureVentricular filling pressureVentricular systolic pressureCell anemiaCell diseaseEa ratioExercise capacitySystolic pressureFilling pressureFunctional capacityHemolytic componentElevated tricuspid regurgitant jet velocityTricuspid regurgitant jet velocitySix-minute walk distanceSix-minute walk testSickle cell disease patientsDecreased exercise capacityHemoglobin oxygen desaturationBaseline clinical characteristicsImpaired exercise capacitySickle cell anemia patients