2022
Iron supplementation and paediatric HIV disease progression: a cohort study among children receiving routine HIV care in Dar es Salaam, Tanzania
Andersen CT, Duggan CP, Manji K, Seage GR, Spiegelman D, Perumal N, Ulenga N, Fawzi WW. Iron supplementation and paediatric HIV disease progression: a cohort study among children receiving routine HIV care in Dar es Salaam, Tanzania. International Journal Of Epidemiology 2022, 51: 1533-1543. PMID: 35167662, PMCID: PMC9557856, DOI: 10.1093/ije/dyac017.Peer-Reviewed Original ResearchMeSH KeywordsAnemiaChildCohort StudiesDietary SupplementsDisease ProgressionHIV InfectionsHumansIronProspective StudiesTanzaniaConceptsDisease stage progressionIron supplementationStage progressionCohort studyDisease progressionRoutine HIV careHIV disease progressionProspective cohort studyManagement of anemiaRisk of anemiaHigher hazard rateProportional hazards modelIron supplement useDar es SalaamHaematological outcomesAntiretroviral therapyHIV careClinic visitsSupportive careAntiretroviral treatmentClinical outcomesClinical visitsAnemia statusSupplement useVital status
2020
Vitamin D Supplements for Prevention of Tuberculosis Infection and Disease
Ganmaa D, Uyanga B, Zhou X, Gantsetseg G, Delgerekh B, Enkhmaa D, Khulan D, Ariunzaya S, Sumiya E, Bolortuya B, Yanjmaa J, Enkhtsetseg T, Munkhzaya A, Tunsag M, Khudyakov P, Seddon JA, Marais BJ, Batbayar O, Erdenetuya G, Amarsaikhan B, Spiegelman D, Tsolmon J, Martineau AR. Vitamin D Supplements for Prevention of Tuberculosis Infection and Disease. New England Journal Of Medicine 2020, 383: 359-368. PMID: 32706534, PMCID: PMC7476371, DOI: 10.1056/nejmoa1915176.Peer-Reviewed Original ResearchConceptsVitamin D groupAcute respiratory infectionsVitamin D supplementationPlacebo groupRespiratory infectionsTuberculosis infectionD groupVitamin DTuberculosis diseaseD supplementationAdverse eventsQFT resultsPositive QFT resultWeekly oral doseVitamin D supplementsQuantiFERON-TB GoldProportion of childrenD supplementsSecondary outcomesPrimary outcomeOral doseD levelsImmune responseLower riskInfection
2013
Micronutrient supplementation and T cell-mediated immune responses in patients with tuberculosis in Tanzania
KAWAI K, MEYDANI SN, URASSA W, WU D, MUGUSI FM, SAATHOFF E, BOSCH RJ, VILLAMOR E, SPIEGELMAN D, FAWZI WW. Micronutrient supplementation and T cell-mediated immune responses in patients with tuberculosis in Tanzania. Epidemiology And Infection 2013, 142: 1505-1509. PMID: 24093552, PMCID: PMC5639693, DOI: 10.1017/s0950268813002495.Peer-Reviewed Original ResearchConceptsCell-mediated immune responsesTB patientsMicronutrient supplementationMicronutrient supplementsImmune responseProliferative responseT cell-mediated immune responsesHIV-negative TB patientsHIV-positive TB patientsLymphocyte proliferative responsesLymphocyte proliferation responseHigher proliferative responsesT cell mitogensPlacebo groupPulmonary TBTB treatmentDaily doseEligible participantsNutritional interventionTuberculosis treatmentTime of initiationClinical relevanceMicronutrient groupProliferation responsePatientsDeterminants of anemia in postpartum HIV-negative women in Dar es Salaam, Tanzania
Petraro P, Duggan C, Urassa W, Msamanga G, Makubi A, Spiegelman D, Fawzi WW. Determinants of anemia in postpartum HIV-negative women in Dar es Salaam, Tanzania. European Journal Of Clinical Nutrition 2013, 67: 708-717. PMID: 23612515, PMCID: PMC3775569, DOI: 10.1038/ejcn.2013.71.Peer-Reviewed Original ResearchMeSH KeywordsAnemia, Iron-DeficiencyCD4 Lymphocyte CountDietDietary SupplementsErythrocyte IndicesFemaleFolic AcidHemoglobinsHIV InfectionsHumansIron, DietaryMaternal Nutritional Physiological PhenomenaMultivariate AnalysisPostpartum PeriodPregnancyProportional Hazards ModelsProspective StudiesRisk FactorsSocioeconomic FactorsTanzaniaConceptsIron/folate supplementationIron deficiency anemiaDeterminants of anemiaDeficiency anemiaFolate supplementationDelivery complicationsPregnant womenRisk factorsMultivariate Cox proportional hazards modelNon-anemic pregnant womenCox proportional hazards modelCD4 cell countHIV-negative womenModifiable risk factorsProspective cohort studyMaternal nutritional statusWeeks of gestationManagement of infectionsProportional hazards modelDar es SalaamSub-Saharan African womenBaseline anemiaIncident anemiaAnemic womenPostpartum anemia
2012
PREDICTORS OF INCIDENT TUBERCULOSIS IN HIV-EXPOSED CHILDREN IN TANZANIA.
Finkelstein J, Manji K, Duggan C, Hertzmark E, Mehta S, Msamanga G, Spiegelman D, Fawzi W. PREDICTORS OF INCIDENT TUBERCULOSIS IN HIV-EXPOSED CHILDREN IN TANZANIA. East African Medical Journal 2012, 89: 183-92. PMID: 26856040, PMCID: PMC10864092.Peer-Reviewed Original ResearchConceptsRisk of tuberculosisChild mid-upper arm circumferenceMid-upper arm circumferenceT-cell countsArm circumferenceReduced riskCD4 T-cell countCD8 T-cell countsLow vitamin E levelsAppropriate infant feedingDuration of breastfeedingLongitudinal cohort studyVitamin E levelsIncident tuberculosisAntenatal clinicCohort studyLymphocyte countHIV infectionTuberculosis infectionChild tuberculosisHIV statusNutritional interventionImmunological statusInfant feedingE levels
2005
Selenium levels in relation to morbidity and mortality among children born to HIV-infected mothers
Kupka R, Msamanga GI, Spiegelman D, Rifai N, Hunter DJ, Fawzi WW. Selenium levels in relation to morbidity and mortality among children born to HIV-infected mothers. European Journal Of Clinical Nutrition 2005, 59: 1250-1258. PMID: 16015252, DOI: 10.1038/sj.ejcn.1602236.Peer-Reviewed Original ResearchConceptsPlasma selenium levelsMorbidity informationSelenium levelsChild mortalityMaternal vitamin supplementsMonthly clinic visitsProspective cohort studyTertiary care hospitalMuhimbili National HospitalRisk of diarrheaChild health outcomesMonths of ageSelenium statusCause mortalityClinic visitsCohort studyRespiratory outcomesMedian ageStudy clinicNational HospitalVitamin supplementsHealth outcomesStudy childrenFogarty International CenterStudy participants
2004
Antioxidant vitamins and coronary heart disease risk: a pooled analysis of 9 cohorts 1 2 3
Knekt P, Ritz J, Pereira MA, O'Reilly EJ, Augustsson K, Fraser GE, Goldbourt U, Heitmann BL, Hallmans G, Liu S, Pietinen P, Spiegelman D, Stevens J, Virtamo J, Willett WC, Rimm EB, Ascherio A. Antioxidant vitamins and coronary heart disease risk: a pooled analysis of 9 cohorts 1 2 3. American Journal Of Clinical Nutrition 2004, 80: 1508-1520. PMID: 15585762, DOI: 10.1093/ajcn/80.6.1508.Peer-Reviewed Original ResearchConceptsCoronary heart diseaseSupplemental vitamin C intakeHighest intake quintileVitamin C intakeAntioxidant vitaminsIntake quintilesCHD incidenceCHD riskRelative riskVitamin ECHD eventsC intakeSupplemental vitamin E intakeVitamin C/dCoronary heart disease riskDietary confounding factorsLower CHD incidenceMajor CHD eventsVitamin CIncident CHD eventsHeart disease riskVitamin E intakeSupplemental vitamin CHigh vitamin ECohort studyA Randomized Trial of Multivitamin Supplements and HIV Disease Progression and Mortality
Fawzi WW, Msamanga GI, Spiegelman D, Wei R, Kapiga S, Villamor E, Mwakagile D, Mugusi F, Hertzmark E, Essex M, Hunter DJ. A Randomized Trial of Multivitamin Supplements and HIV Disease Progression and Mortality. New England Journal Of Medicine 2004, 351: 23-32. PMID: 15229304, DOI: 10.1056/nejmoa040541.Peer-Reviewed Original ResearchConceptsVitamin AHIV diseaseMultivitamin supplementsHuman immunodeficiency virus (HIV) diseasePlacebo-controlled trialHIV disease progressionStage 4 diseaseLow viral loadHigher CD4Antiretroviral therapyPrimary outcomeImmunodeficiency syndromeRandomized trialsViral loadPregnant womenDisease progressionRelative riskObservational studyDaily supplementCell countEnd pointMicronutrient statusMultivitaminsDiseaseProgressionEffect of Prenatal Vitamin Supplementation on Lower-Genital Levels of HIV Type 1 and Interleukin Type 1β at 36 Weeks of Gestation
Fawzi W, Msamanga G, Antelman G, Xu C, Hertzmark E, Spiegelman D, Hunter D, Anderson D. Effect of Prenatal Vitamin Supplementation on Lower-Genital Levels of HIV Type 1 and Interleukin Type 1β at 36 Weeks of Gestation. Clinical Infectious Diseases 2004, 38: 716-722. PMID: 14986257, DOI: 10.1086/381673.Peer-Reviewed Original ResearchConceptsHIV-1HIV-1-infected pregnant womenVitamin AHIV-1-infected womenType 1Human immunodeficiency virus type 1Immunodeficiency virus type 1Genital HIV-1Prenatal multivitamin supplementsHIV-1 transmissionCervicovaginal lavage specimensHIV Type 1HIV-1 infectionLower genital tractWeeks of gestationPrenatal vitamin supplementationUse of vitaminsVirus type 1Lack of effectPregnancy outcomesVaginal inflammationViral sheddingVitamin supplementationMultivitamin supplementsPregnant women
2003
Dietary Fiber Reduces Peripheral Arterial Disease Risk in Men
Merchant AT, Hu FB, Spiegelman D, Willett WC, Rimm EB, Ascherio A. Dietary Fiber Reduces Peripheral Arterial Disease Risk in Men. Journal Of Nutrition 2003, 133: 3658-3663. PMID: 14608090, DOI: 10.1093/jn/133.11.3658.Peer-Reviewed Original ResearchConceptsPeripheral arterial disease riskCereal fiber intakeArterial disease riskPAD riskFiber intakeInverse associationDisease riskEarly coronary heart diseaseIncident PAD casesFood frequency questionnaireCoronary heart diseaseTotal fiber intakeOverall inverse associationDisease QuestionnaireFrequency questionnaireLowest quintileHeart diseaseCardiovascular diseaseFamily historyPhysical activityPAD casesAlcohol consumptionEnergy intakeIntakeRiskThe Use of B Vitamin Supplements and Peripheral Arterial Disease Risk in Men Are Inversely Related
Merchant AT, Hu FB, Spiegelman D, Willett WC, Rimm EB, Ascherio A. The Use of B Vitamin Supplements and Peripheral Arterial Disease Risk in Men Are Inversely Related. Journal Of Nutrition 2003, 133: 2863-2867. PMID: 12949378, DOI: 10.1093/jn/133.9.2863.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedArteriesDietary SupplementsFolic AcidHumansMaleMiddle AgedProspective StudiesRiskVascular DiseasesVitamin B 12Vitamin B 6ConceptsPeripheral arterial diseasePAD riskFolate intakePrevention of PADPeripheral arterial disease riskVitamin BArterial disease riskIncident PAD casesU.S. health professionalsB vitamin intakeVitamin supplement useB-vitamin supplementsCoronary heart diseaseWeak inverse associationMultivariate adjustmentArterial diseaseVitamin intakeSupplement useHeart diseaseInverse associationCardiovascular diseaseD incrementStudy populationVitamin supplementsDietary folateVitamin C and risk of coronary heart disease in women
Osganian SK, Stampfer MJ, Rimm E, Spiegelman D, Hu FB, Manson JE, Willett WC. Vitamin C and risk of coronary heart disease in women. Journal Of The American College Of Cardiology 2003, 42: 246-252. PMID: 12875759, DOI: 10.1016/s0735-1097(03)00575-8.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge FactorsAntioxidantsAscorbic AcidChemopreventionCoronary DiseaseDiabetes ComplicationsDietary SupplementsFemaleHumansHypercholesterolemiaHypertensionIncidenceLife StyleLogistic ModelsMiddle AgedMultivariate AnalysisNutrition SurveysProportional Hazards ModelsProspective StudiesRisk FactorsSmokingSurveys and QuestionnairesUnited StatesWomen's HealthConceptsRisk of CHDCoronary heart diseaseVitamin C intakeCoronary risk factorsVitamin C supplementsC intakeVitamin CC supplementsHeart diseaseRisk factorsLower riskDetailed semiquantitative food frequency questionnaireIncidence of CHDVitamin C supplement useIncident coronary heart diseaseSemiquantitative food frequency questionnaireFood frequency questionnaireSignificant inverse associationIncident casesSupplement useProspective InvestigationInverse associationProtective associationFemale nursesTotal intakeEffect of Providing Vitamin Supplements to Human Immunodeficiency Virus-Infected, Lactating Mothers on the Child's Morbidity and CD4+ Cell Counts
Fawzi WW, Msamanga GI, Wei R, Spiegelman D, Antelman G, Villamor E, Manji K, Hunter D. Effect of Providing Vitamin Supplements to Human Immunodeficiency Virus-Infected, Lactating Mothers on the Child's Morbidity and CD4+ Cell Counts. Clinical Infectious Diseases 2003, 36: 1053-1062. PMID: 12684919, DOI: 10.1086/374223.Peer-Reviewed Original ResearchConceptsMultivitamin armCell countVitamin AHuman immunodeficiency virus type 1Immunodeficiency virus type 1Placebo-controlled trialCells/microLHIV-negative childrenHIV-positive childrenHuman immunodeficiency virusChildren of womenRapid respiratory rateVirus type 1Low-cost interventionEffect of supplementationMaternal receiptMean CD4Immunodeficiency virusMultivitamin supplementsChild morbidityChild healthVitamin supplementsLower riskRespiratory rateType 1
2002
Randomized trial of vitamin supplements in relation to transmission of HIV-1 through breastfeeding and early child mortality
Fawzi WW, Msamanga GI, Hunter D, Renjifo B, Antelman G, Bang H, Manji K, Kapiga S, Mwakagile D, Essex M, Spiegelman D. Randomized trial of vitamin supplements in relation to transmission of HIV-1 through breastfeeding and early child mortality. AIDS 2002, 16: 1935-1944. PMID: 12351954, DOI: 10.1097/00002030-200209270-00011.Peer-Reviewed Original ResearchConceptsHIV-1 transmissionInfants of mothersVitamin ALower baseline lymphocyte countsHigh erythrocyte sedimentation rateChild mortalityBaseline lymphocyte countMaternal micronutrient statusHIV-free survivalErythrocyte sedimentation rateLow birthweight babiesEarly child mortalityRisk of transmissionLymphocyte countLower hemoglobinMultivitamin supplementationWeeks' gestationBirthweight babiesPregnant womenHIV-1Vitamin supplementsMultivitaminsNutritional statusMicronutrient statusMortalityVitamins and carotenoids intake and the risk of basal cell carcinoma of the skin in women (United States)
Fung TT, Hunter DJ, Spiegelman D, Colditz GA, Speizer FE, Willett WC. Vitamins and carotenoids intake and the risk of basal cell carcinoma of the skin in women (United States). Cancer Causes & Control 2002, 13: 221-230. PMID: 12020103, DOI: 10.1023/a:1015036317596.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge DistributionAscorbic AcidCarcinoma, Basal CellCarotenoidsCohort StudiesConfidence IntervalsDietDietary SupplementsFemaleHumansIncidenceLogistic ModelsMiddle AgedProbabilityProspective StudiesRisk AssessmentSensitivity and SpecificitySkin NeoplasmsUnited StatesVitamin AVitamin EVitaminsConceptsBasal cell carcinomaVitamin ACell carcinomaDietary intakeRelative riskSun sensitivity factorsMultivariate relative riskFood frequency questionnaireRisk of BCCSignificant inverse associationIncidence of BCCImportant protective roleFirst diagnosisDietary factorsInverse associationSun exposureLatency periodProtective roleSpecific carotenoidsLogistic regressionVitamin CBottom quintileIntakeCarcinomaRiskVitamin A Supplements Ameliorate the Adverse Effect of HIV-1, Malaria, and Diarrheal Infections on Child Growth
Villamor E, Mbise R, Spiegelman D, Hertzmark E, Fataki M, Peterson KE, Ndossi G, Fawzi WW. Vitamin A Supplements Ameliorate the Adverse Effect of HIV-1, Malaria, and Diarrheal Infections on Child Growth. Pediatrics 2002, 109: e6-e6. PMID: 11773574, DOI: 10.1542/peds.109.1.e6.Peer-Reviewed Original ResearchConceptsMid-upper arm circumferenceMonths of ageVitamin A supplementsPersistent diarrheaHIV infectionRespiratory infectionsVitamin AArm circumferenceHIV statusStudy clinicTreatment armsA supplementsHigher mid-upper arm circumferenceHuman immunodeficiency virus (HIV) infectionInfectious diseasesAdverse effectsLow arm circumferenceEpisodes of infectionImmunodeficiency virus infectionDay of admissionIU vitamin APrevalence of vitaminChild growthConfidence intervalsSeverity of diarrhea
2001
Population-based study of α- and γ-tocopherol in plasma and adipose tissue as biomarkers of intake in Costa Rican adults 1 , 2 , 3
El-Sohemy A, Baylin A, Ascherio A, Kabagambe E, Spiegelman D, Campos H. Population-based study of α- and γ-tocopherol in plasma and adipose tissue as biomarkers of intake in Costa Rican adults 1 , 2 , 3. American Journal Of Clinical Nutrition 2001, 74: 356-363. PMID: 11522560, DOI: 10.1093/ajcn/74.3.356.Peer-Reviewed Original ResearchConceptsAlpha-tocopherol intakeBiomarkers of intakeAdipose tissueGamma-tocopherolTissue concentrationsAlpha-tocopherolGamma-tocopherol intakeFood frequency questionnairePopulation-based studyDietary alpha-tocopherolAlpha-tocopherol concentrationsGamma-tocopherol concentrationsTissue biopsy samplesSupplement useVitamin supplementsBlood samplesBiopsy samplesVitamin EGood biomarkerUS dietSuitable biomarkersIntakePalm shorteningBiomarkersAdults 1Prospective Study of Zinc Intake and the Risk of Age-Related Macular Degeneration
Cho E, Stampfer M, Seddon J, Hung S, Spiegelman D, Rimm E, Willett W, Hankinson S. Prospective Study of Zinc Intake and the Risk of Age-Related Macular Degeneration. Annals Of Epidemiology 2001, 11: 328-336. PMID: 11399447, DOI: 10.1016/s1047-2797(01)00217-4.Peer-Reviewed Original ResearchConceptsAge-related macular degenerationZinc intakeRelative riskProspective studyLowest quintileMacular degenerationRisk of AMDDiagnosis of AMDSemiquantitative food frequency questionnaireMultivariate relative riskPooled relative riskFood frequency questionnaireLarge prospective studiesDietary zinc intakeVisual acuity lossTotal zinc intakePotential risk factorsRisk of AgeMultivariate adjustmentIncident casesAcuity lossHighest quintileLong-term benefitsRisk factorsZinc supplements
2000
Prospective Study of Dietary Supplements, Macronutrients, Micronutrients, and Risk of Bladder Cancer in US Men
Michaud DS, Spiegelman D, Clinton SK, Rimm EB, Willett WC, Giovannucci E. Prospective Study of Dietary Supplements, Macronutrients, Micronutrients, and Risk of Bladder Cancer in US Men. American Journal Of Epidemiology 2000, 152: 1145-1153. PMID: 11130620, DOI: 10.1093/aje/152.12.1145.Peer-Reviewed Original ResearchConceptsBladder cancer riskBladder cancerSupplement useBladder carcinogenesisCancer riskTotal vitamin E intakeVitamin C supplement useVitamin E supplement useSuggestive inverse associationFood frequency questionnaireVitamin E intakeFourth leading causeVitamin E supplementsIntake of macroProspective Health ProfessionalsDose-response relationFrequency questionnaireE intakeE supplementsProspective studyInverse associationDietary intakeLeading causeMacronutrient intakeDietary variablesVitamin A supplements and diarrheal and respiratory tract infections among children in Dar es Salaam, Tanzania
Fawzi W, Mbise R, Spiegelman D, Fataki M, Hertzmark E, Ndossi G. Vitamin A supplements and diarrheal and respiratory tract infections among children in Dar es Salaam, Tanzania. The Journal Of Pediatrics 2000, 137: 660-667. PMID: 11060532, DOI: 10.1067/mpd.2000.110136.Peer-Reviewed Original ResearchConceptsRespiratory tract infectionsHuman immunodeficiency virusTract infectionsVitamin APlacebo-controlled trialAcute respiratory infectionsSevere watery diarrheaRisk of diarrheaEffect of vitaminDuration of episodesRapid respiratory rateLow-cost interventionAcute diarrheaRespiratory infectionsImmunodeficiency virusWatery diarrheaAdverse outcomesUndernourished childrenHigh riskDiarrheaRespiratory rateInfectionSmall riskPlaceboDar es Salaam