2011
Demographic, dietary, and biochemical determinants of vitamin D status in inner-city children
Carpenter TO, Herreros F, Zhang JH, Ellis BK, Simpson C, Torrealba-Fox E, Kim GJ, Savoye M, Held NA, Cole D. Demographic, dietary, and biochemical determinants of vitamin D status in inner-city children. American Journal Of Clinical Nutrition 2011, 95: 137-146. PMID: 22170368, PMCID: PMC3238457, DOI: 10.3945/ajcn.111.018721.Peer-Reviewed Original ResearchConceptsParathyroid hormonePmol/LMinority infantsFormula useMeasurement of PTHSkin typeOlder childrenVitamin D insufficientVitamin D intakeVitamin D statusVitamin D fortificationAlkaline phosphatase activityDietary intake dataInner-city childrenClinical ricketsD intakeD statusSerum calciumDihydroxyvitamin DVitamin DD fortificationBlood samplesIntake dataReference rangeTotal alkaline phosphatase activity
2005
Relationships among Vitamin D Levels, Parathyroid Hormone, and Calcium Absorption in Young Adolescents
Abrams SA, Griffin IJ, Hawthorne KM, Gunn SK, Gundberg CM, Carpenter TO. Relationships among Vitamin D Levels, Parathyroid Hormone, and Calcium Absorption in Young Adolescents. The Journal Of Clinical Endocrinology & Metabolism 2005, 90: 5576-5581. PMID: 16076940, PMCID: PMC1283091, DOI: 10.1210/jc.2005-1021.Peer-Reviewed Original ResearchConceptsVitamin D statusCalcium absorptionD statusDihydroxyvitamin DVitamin D insufficiencyVitamin D levelsBone mineral densityCalcium absorption fractionYr of ageEffects of prebioticsD insufficiencySerum PTHPTH secretionD calciumParathyroid hormoneD levelsPediatric dataMineral densityMidpubertal boysYoung adolescentsPTHBone formationWhole bodyHigh rateAdolescents
1995
Media Calcium Attenuates Mitochondrial 1,25(OH)2D Production in Phosphorus or Vitamin D-Deprived Rats
Carpenter T, Ellis B. Media Calcium Attenuates Mitochondrial 1,25(OH)2D Production in Phosphorus or Vitamin D-Deprived Rats. Pediatric Research 1995, 37: 726-730. PMID: 7544454, DOI: 10.1203/00006450-199506000-00009.Peer-Reviewed Original ResearchConceptsVitamin D deprivationLow phosphorus dietVitamin DPhosphorus dietPrimary physiologic regulatorCalcium effectDeficient dietLong-term exposureCalcium modulatesMedium calciumPhysiologic regulatorRatsControl dietMarked inhibitionEffect of calciumStimulatory responseRenal mitochondriaExtramitochondrial calciumDietWkBasal activityPTHTerm exposureCalciumDeprivation