TY - JOUR
T1 - Age and Sex Distributions of Age-Related Biomarker Values in Healthy Older Adults from the Long Life Family Study
AU - Sebastiani, Paola
AU - Thyagarajan, Bharat
AU - Sun, Fangui
AU - Honig, Lawrence S.
AU - Schupf, Nicole
AU - Cosentino, Stephanie
AU - Feitosa, Mary F.
AU - Wojczynski, Mary
AU - Newman, Anne B.
AU - Montano, Monty
AU - Perls, Thomas T.
N1 - Publisher Copyright:
© 2016, Copyright the Authors Journal compilation © 2016, The American Geriatrics Society
PY - 2016/11/1
Y1 - 2016/11/1
N2 - Objectives: To determine reference values for laboratory tests in individuals aged 85 and older. Design: Cross-sectional cohort study. Setting: International. Participants: Long Life Family Study (LLFS) participants (N~5,000, age: range 25–110, median 67, 45% male). Measurements: Serum biomarkers were selected based on association with aging-related diseases and included complete blood count, lipids (triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, total cholesterol), 25-hydroxyvitamin D2 and D3, vitamin D epi-isomer, diabetes mellitus–related biomarkers (adiponectin, insulin, insulin-like growth factor 1, glucose, glycosylated hemoglobin, soluble receptor for advanced glycation endproduct), kidney disease–related biomarkers (albumin, creatinine, cystatin), endocrine biomarkers (dehydroepiandrosterone, sex-hormone binding globulin, testosterone), markers of inflammation (interleukin 6, high-sensitivity C-reactive protein, N-terminal pro b-type natriuretic peptide), ferritin, and transferrin. Results: Of 38 measured biomarkers, 34 were significantly correlated with age. Summary statistics were generated for all biomarkers according to sex and 5-year age increments from 50 and up after excluding participants with diseases and treatments that were associated with biomarkers. A biomarker data set was also generated that will be useful for other investigators seeking to compare biomarker levels between studies. Conclusion: Levels of several biomarkers change with older age in healthy individuals. The descriptive statistics identified herein will be useful in future studies and, if replicated in additional studies, might also become useful in clinical practice. The availability of the reference data set will facilitate appropriate calibration of biomarkers measured in different laboratories.
AB - Objectives: To determine reference values for laboratory tests in individuals aged 85 and older. Design: Cross-sectional cohort study. Setting: International. Participants: Long Life Family Study (LLFS) participants (N~5,000, age: range 25–110, median 67, 45% male). Measurements: Serum biomarkers were selected based on association with aging-related diseases and included complete blood count, lipids (triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, total cholesterol), 25-hydroxyvitamin D2 and D3, vitamin D epi-isomer, diabetes mellitus–related biomarkers (adiponectin, insulin, insulin-like growth factor 1, glucose, glycosylated hemoglobin, soluble receptor for advanced glycation endproduct), kidney disease–related biomarkers (albumin, creatinine, cystatin), endocrine biomarkers (dehydroepiandrosterone, sex-hormone binding globulin, testosterone), markers of inflammation (interleukin 6, high-sensitivity C-reactive protein, N-terminal pro b-type natriuretic peptide), ferritin, and transferrin. Results: Of 38 measured biomarkers, 34 were significantly correlated with age. Summary statistics were generated for all biomarkers according to sex and 5-year age increments from 50 and up after excluding participants with diseases and treatments that were associated with biomarkers. A biomarker data set was also generated that will be useful for other investigators seeking to compare biomarker levels between studies. Conclusion: Levels of several biomarkers change with older age in healthy individuals. The descriptive statistics identified herein will be useful in future studies and, if replicated in additional studies, might also become useful in clinical practice. The availability of the reference data set will facilitate appropriate calibration of biomarkers measured in different laboratories.
KW - Long Life Family Study
KW - healthy aging
KW - reference values
KW - serum biomarkers
UR - http://www.scopus.com/inward/record.url?scp=84995603700&partnerID=8YFLogxK
U2 - 10.1111/jgs.14522
DO - 10.1111/jgs.14522
M3 - Article
C2 - 27783390
AN - SCOPUS:84995603700
SN - 0002-8614
VL - 64
SP - e189-e194
JO - Journal of the American Geriatrics Society
JF - Journal of the American Geriatrics Society
IS - 11
ER -