PMID- 33613317 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210223 IS - 1664-042X (Print) IS - 1664-042X (Electronic) IS - 1664-042X (Linking) VI - 12 DP - 2021 TI - Sedentary Patterns and Systemic Inflammation: Sex-Specific Links in Older Adults. PG - 625950 LID - 10.3389/fphys.2021.625950 [doi] LID - 625950 AB - The study aimed to examine sex-specific associations between objectively measured sedentary patterns and pro- and anti-inflammatory biomarkers in older adults when considering the moderating impact of physical activity (PA). Accelerometer-based monitoring of sedentary patterns and PA was conducted in a population of older men (n = 83; age: 67.4 +/- 1.5; height: 178.7 +/- 6.6 cm; weight: 80.9 +/- 10.6 kg) and women (n = 146; age: 67.4 +/- 1.6; height: 164.2 +/- 6.1 cm; weight: 64.6 +/- 10.1 kg) aged 65-70. Blood samples were collected for the assessment of the inflammatory biomarkers C-reactive protein (CRP), fibrinogen, interleukin-6 (IL-6), IL-10, IL-18, and monocyte chemoattractant protein-1 (MCP-1). Data were analyzed using multiple linear regression models. Total and bouts of >/=10 min of sedentary time were inversely associated with the anti-inflammatory marker IL-10 in older men (accumulated sedentary time: beta = -0.116; bouts: beta = -0.099; all p < 0.05). Associations were independent of moderate-to-vigorous physical activity (MVPA) and total PA volume. In women, total and bouts of >/=10 min of sedentary time were detrimentally associated with the pro-inflammatory marker fibrinogen (accumulated sedentary time: beta = -0.130; bouts: beta = -0.085; all p < 0.05). Associations remained between accumulated sedentary time and fibrinogen when adjusting for MVPA and total PA volume. This study highlights sex-specific routes by which sedentary patterns impact on pro- and anti-inflammatory biomarkers in older adults. The findings support efforts to promote accumulation of time spent in PA at the expense of time in sedentary pursuits on low-grade inflammation in older men and women. CI - Copyright (c) 2021 Bergens, Nilsson, Papaioannou and Kadi. FAU - Bergens, Oscar AU - Bergens O AD - School of Health Sciences, Orebro University, Orebro, Sweden. FAU - Nilsson, Andreas AU - Nilsson A AD - School of Health Sciences, Orebro University, Orebro, Sweden. FAU - Papaioannou, Konstantinos-Georgios AU - Papaioannou KG AD - School of Health Sciences, Orebro University, Orebro, Sweden. FAU - Kadi, Fawzi AU - Kadi F AD - School of Health Sciences, Orebro University, Orebro, Sweden. LA - eng PT - Journal Article DEP - 20210205 PL - Switzerland TA - Front Physiol JT - Frontiers in physiology JID - 101549006 PMC - PMC7892961 OTO - NOTNLM OT - aging OT - inflammatory biomarkers OT - metabolic health OT - physical activity OT - sedentary behaviors COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/02/23 06:00 MHDA- 2021/02/23 06:01 PMCR- 2021/02/05 CRDT- 2021/02/22 05:53 PHST- 2020/11/11 00:00 [received] PHST- 2021/01/15 00:00 [accepted] PHST- 2021/02/22 05:53 [entrez] PHST- 2021/02/23 06:00 [pubmed] PHST- 2021/02/23 06:01 [medline] PHST- 2021/02/05 00:00 [pmc-release] AID - 10.3389/fphys.2021.625950 [doi] PST - epublish SO - Front Physiol. 2021 Feb 5;12:625950. doi: 10.3389/fphys.2021.625950. eCollection 2021.