PMID- 18006938 OWN - NLM STAT- MEDLINE DCOM- 20080516 LR - 20220408 IS - 1055-9965 (Print) IS - 1055-9965 (Linking) VI - 16 IP - 11 DP - 2007 Nov TI - Intra-individual variation of plasma adipokine levels and utility of single measurement of these biomarkers in population-based studies. PG - 2464-70 AB - Adipokines, soluble mediators produced by adipocytes, may link adipose tissue to the inflammatory, metabolic, and immune dysregulation that characterize many obesity-related diseases. The stability of plasma adipokine levels within individuals, their seasonal variability, intercorrelations, and relationships to well-established measures of adiposity are incompletely defined. We measured levels of 12 adipokines [interleukin 1beta (IL-1beta), IL-6, IL-8, tumor necrosis factor-alpha (TNF-alpha), plasminogen activator inhibitor-1 (PAI-1), high-sensitivity C-reactive protein (hsCRP), monocyte chemoattractant protein-1 (MCP-1), nerve growth factor (NGF), leptin, adiponectin, hepatocyte growth factor (HGF), and resistin] in four seasonal random plasma samples of 48 male participants of a population-based cohort study. The representativeness of single measurements was assessed by correlating the adipokine levels of a single, random sample with the mean levels from the remaining three samples using a bootstrap approach and using intra-class correlation coefficients (ICC). Spearman correlations between adipokine levels, age, body mass index (BMI), and waist-to-hip ratio (WHR) were estimated. Correlations between plasma adipokine levels from one random sample and the mean of the remaining three seasonal samples ranged from 0.57 to 0.89. Over the 1-year study period, the ICCs for adipokine levels ranged from 0.44 (PAI-1) to 0.83 (HGF). IL-8, MCP-1, and resistin levels were positively associated with age; HGF and PAI-1 levels were correlated with BMI and WHR. This study suggests that adipokine levels in a single blood sample may be useful biomarkers of inflammation in population-based studies of obesity-related disease. FAU - Lee, Sang-Ah AU - Lee SA AD - Vanderbilt Epidemiology Center, Nashville, Tennessee 37203-1738, USA. FAU - Kallianpur, Asha AU - Kallianpur A FAU - Xiang, Yong-Bing AU - Xiang YB FAU - Wen, Wanqing AU - Wen W FAU - Cai, Qiuyin AU - Cai Q FAU - Liu, Dake AU - Liu D FAU - Fazio, Sergio AU - Fazio S FAU - Linton, MacRae F AU - Linton MF FAU - Zheng, Wei AU - Zheng W FAU - Shu, Xiao Ou AU - Shu XO LA - eng GR - R01 CA082729/CA/NCI NIH HHS/United States GR - R01CA82729/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - United States TA - Cancer Epidemiol Biomarkers Prev JT - Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology JID - 9200608 RN - 0 (Adipokines) SB - IM MH - Adipokines/*blood MH - Adiposity/physiology MH - Body Mass Index MH - Cohort Studies MH - Humans MH - Inflammation/blood MH - Male MH - Middle Aged MH - Seasons EDAT- 2007/11/17 09:00 MHDA- 2008/05/17 09:00 CRDT- 2007/11/17 09:00 PHST- 2007/11/17 09:00 [pubmed] PHST- 2008/05/17 09:00 [medline] PHST- 2007/11/17 09:00 [entrez] AID - 16/11/2464 [pii] AID - 10.1158/1055-9965.EPI-07-0374 [doi] PST - ppublish SO - Cancer Epidemiol Biomarkers Prev. 2007 Nov;16(11):2464-70. doi: 10.1158/1055-9965.EPI-07-0374.