2017
Biological Age, Not Chronological Age, Is Associated with Late-Life Depression
Brown PJ, Wall MM, Chen C, Levine ME, Yaffe K, Roose SP, Rutherford BR. Biological Age, Not Chronological Age, Is Associated with Late-Life Depression. The Journals Of Gerontology Series A 2017, 73: 1370-1376. PMID: 28958059, PMCID: PMC6132120, DOI: 10.1093/gerona/glx162.Peer-Reviewed Original ResearchConceptsLate-life depressionCES-D scoresDepressive symptomsBaseline CES-D scoreBiological ageChronological ageCovariate-adjusted regression modelsOlder biological ageEpidemiologic Studies Depression ScaleSignificant depressive symptomsBody Composition StudyMean chronological ageAge-associated changesNumerous physiological systemsAge-related processesKidney functioningLife depressionDepression ScaleDepression groupBrain disordersHealth AgingLongitudinal associationsSymptomsAgeRegression modelsEpigenetic clock analysis of diet, exercise, education, and lifestyle factors
Quach A, Levine ME, Tanaka T, Lu AT, Chen BH, Ferrucci L, Ritz B, Bandinelli S, Neuhouser ML, Beasley JM, Snetselaar L, Wallace RB, Tsao PS, Absher D, Assimes TL, Stewart JD, Li Y, Hou L, Baccarelli AA, Whitsel EA, Horvath S. Epigenetic clock analysis of diet, exercise, education, and lifestyle factors. Aging 2017, 9: 419-437. PMID: 28198702, PMCID: PMC5361673, DOI: 10.18632/aging.101168.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAgingCohort StudiesCross-Sectional StudiesDietEducational StatusEpigenesis, GeneticExerciseFemaleHumansLife StyleMiddle AgedConceptsIntrinsic epigenetic age accelerationExtrinsic epigenetic age accelerationModerate alcohol consumptionMetabolic syndromeLifestyle factorsAlcohol consumptionEpigenetic age accelerationHealth initiativesItalian cohort studyPostmenopausal female participantsFirst-line medicationWomen's Health InitiativeBlood carotenoid levelsType 2 diabetesAge accelerationAge-related functional declineHealth-related outcomesEpigenetic clock analysisFemale participantsIndicator of fruitCause mortalityCohort studyPoultry intakeChronic conditionsFish intake
2016
Epigenetic Aging and Immune Senescence in Women With Insomnia Symptoms: Findings From the Women’s Health Initiative Study
Carroll JE, Irwin MR, Levine M, Seeman TE, Absher D, Assimes T, Horvath S. Epigenetic Aging and Immune Senescence in Women With Insomnia Symptoms: Findings From the Women’s Health Initiative Study. Biological Psychiatry 2016, 81: 136-144. PMID: 27702440, PMCID: PMC5536960, DOI: 10.1016/j.biopsych.2016.07.008.Peer-Reviewed Original ResearchConceptsNaive T cellsWomen's Health Initiative studyDifferentiated T cellsT cellsInsomnia symptomsAge-related morbidityShort sleepSleep durationInitiative studyLarge population-based studyEpigenetic agePopulation-based studyLong sleep durationSymptoms of insomniaImmune senescenceImmune cellsLong sleepAdvanced epigenetic ageCell countSymptomsInfluence riskSleepCross-sectional dataAgeAge acceleration
2015
Quantification of biological aging in young adults
Belsky DW, Caspi A, Houts R, Cohen HJ, Corcoran DL, Danese A, Harrington H, Israel S, Levine ME, Schaefer JD, Sugden K, Williams B, Yashin AI, Poulton R, Moffitt TE. Quantification of biological aging in young adults. Proceedings Of The National Academy Of Sciences Of The United States Of America 2015, 112: e4104-e4110. PMID: 26150497, PMCID: PMC4522793, DOI: 10.1073/pnas.1506264112.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgingBiomarkersCognitionCross-Sectional StudiesHumansLife ExpectancyLongitudinal StudiesMiddle AgedRegression AnalysisTime FactorsConceptsYoung adultsYoung humansSame chronological ageSelf-reported bad healthCognitive declineOlder adultsBiological agingYoung individualsChronological ageMultiple organ systemsBrain agingLongitudinal measuresAge-related diseasesChronic diseasesAdultsFourth decadeBirth cohortOrgan systemsWorse healthIndividualsRejuvenation therapyTime pointsHuman agingMultiple biomarkersTherapy
2014
Low Protein Intake Is Associated with a Major Reduction in IGF-1, Cancer, and Overall Mortality in the 65 and Younger but Not Older Population
Levine ME, Suarez JA, Brandhorst S, Balasubramanian P, Cheng CW, Madia F, Fontana L, Mirisola MG, Guevara-Aguirre J, Wan J, Passarino G, Kennedy BK, Wei M, Cohen P, Crimmins EM, Longo VD. Low Protein Intake Is Associated with a Major Reduction in IGF-1, Cancer, and Overall Mortality in the 65 and Younger but Not Older Population. Cell Metabolism 2014, 19: 407-417. PMID: 24606898, PMCID: PMC3988204, DOI: 10.1016/j.cmet.2014.02.006.Peer-Reviewed Original ResearchMeSH KeywordsAgedAnimalsBreast NeoplasmsCarrier ProteinsCross-Sectional StudiesDiabetes MellitusDiet, Protein-RestrictedFemaleFollow-Up StudiesHumansInsulin-Like Growth Factor ILongevityMaleMelanomaMiceMice, Inbred BALB CMice, Inbred C57BLMice, KnockoutMiddle AgedNeoplasmsProportional Hazards ModelsSignal TransductionConceptsHigh protein intakeOverall mortalityProtein intakeCancer death riskProgression of breastLow protein intakeLow-protein dietHigh protein consumptionDiabetes mortalityAge-related diseasesDeath riskProtein restrictionIGF-1Melanoma tumorsMortalityMouse studiesOlder populationProtein dietOlder adultsIntakeMajor reductionProtein consumptionCancerLow proteinAge
2012
Modeling the Rate of Senescence: Can Estimated Biological Age Predict Mortality More Accurately Than Chronological Age?
Levine ME. Modeling the Rate of Senescence: Can Estimated Biological Age Predict Mortality More Accurately Than Chronological Age? The Journals Of Gerontology Series A 2012, 68: 667-674. PMID: 23213031, PMCID: PMC3660119, DOI: 10.1093/gerona/gls233.Peer-Reviewed Original ResearchThe Impact of Insulin Resistance and Inflammation on the Association Between Sarcopenic Obesity and Physical Functioning
Levine ME, Crimmins EM. The Impact of Insulin Resistance and Inflammation on the Association Between Sarcopenic Obesity and Physical Functioning. Obesity 2012, 20: 2101-2106. PMID: 22310233, PMCID: PMC3527629, DOI: 10.1038/oby.2012.20.Peer-Reviewed Original ResearchConceptsDual-energy X-ray absorptiometryC-reactive proteinInsulin resistancePhysical functioningSarcopenic obesityPhysical functioning problemsMuscle massDifferent body composition phenotypesSerum C-reactive proteinAppendicular skeletal muscle massHomeostasis model assessmentNutrition Examination SurveyCross-sectional studyX-ray absorptiometryBody composition categoriesSkeletal muscle massBody composition phenotypesBody composition measurementsPoisson regression modelsRace/ethnicityNonsarcopenic obesitySarcopenic nonobeseSarcopenic nonobesitySarcopenic obeseSystemic inflammation