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Circulating Interle...
Circulating Interleukin-6 is Associated with Skeletal Muscle Strength, Quality, and Functional Adaptation with Exercise Training in Mobility-Limited Older Adults
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- Grosicki, Gregory J. (author)
- Tufts Univ, Nutr Exercise Physiol & Sarcopenia Lab, Jean Mayer USDA Human Nutr Res Ctr Aging, Boston, MA 02111 USA;Georgia Southern Univ, Dept Hlth Sci & Kinesiol, Biodynam & Human Performance Ctr, Armstrong Campus,11935 Abercorn St, Savannah, GA 31419 USA
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- Barrett, B. B. (author)
- Tufts Univ, Nutr Exercise Physiol & Sarcopenia Lab, Jean Mayer USDA Human Nutr Res Ctr Aging, Boston, MA 02111 USA
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- Englund, D. A. (author)
- Tufts Univ, Nutr Exercise Physiol & Sarcopenia Lab, Jean Mayer USDA Human Nutr Res Ctr Aging, Boston, MA 02111 USA
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- Liu, C. (author)
- Tufts Univ, Nutr Exercise Physiol & Sarcopenia Lab, Jean Mayer USDA Human Nutr Res Ctr Aging, Boston, MA 02111 USA
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- Travison, T. G. (author)
- Karolinska Institutet,Hebrew SeniorLife, Marcus Inst Aging Res, Boston, MA USA;Harvard Med Sch, Beth Israel Deaconess Med Ctr, Dept Med, Boston, MA 02115 USA,Karolinska Inst, Dept Lab Med, Div Clin Physiol, Stockholm, Sweden
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- Cederholm, Tommy (author)
- Uppsala universitet,Klinisk nutrition och metabolism
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- Koochek, Afsaneh (author)
- Uppsala universitet,Institutionen för kostvetenskap
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- von Berens, Åsa (author)
- Uppsala universitet,Klinisk nutrition och metabolism
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- Gustafsson, T. (author)
- Karolinska Inst, Dept Lab Med, Div Clin Physiol, Stockholm, Sweden
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- Benard, T. (author)
- Tufts Univ, Nutr Exercise Physiol & Sarcopenia Lab, Jean Mayer USDA Human Nutr Res Ctr Aging, Boston, MA 02111 USA
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- Reid, K. F. (author)
- Tufts Univ, Nutr Exercise Physiol & Sarcopenia Lab, Jean Mayer USDA Human Nutr Res Ctr Aging, Boston, MA 02111 USA
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- Fielding, R. A. (author)
- Tufts Univ, Nutr Exercise Physiol & Sarcopenia Lab, Jean Mayer USDA Human Nutr Res Ctr Aging, Boston, MA 02111 USA
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(creator_code:org_t)
- 2019
- 2020
- English.
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In: Journal of Frailty & Aging. - : EDITIONS SERDI. - 2260-1341 .- 2273-4309. ; 9:1, s. 57-63
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Background: Human aging is characterized by a chronic, low-grade inflammation suspected to contribute to reductions in skeletal muscle size, strength, and function. Inflammatory cytokines, such as interleukin-6 (IL-6), may play a role in the reduced skeletal muscle adaptive response seen in older individuals.Objectives: To investigate relationships between circulating IL-6, skeletal muscle health and exercise adaptation in mobility-limited older adults.Design: Randomized controlled trial.Setting: Exercise laboratory on the Health Sciences campus of an urban university.Participants: 99 mobility-limited (Short Physical Performance Battery (SPPB) <= 9) older adults.Intervention: 6-month structured physical activity with or without a protein and vitamin D nutritional supplement.Measurements: Circulating IL-6, skeletal muscle size, composition (percent normal density muscle tissue), strength, power, and specific force (strength/CSA) as well as physical function (gait speed, stair climb time, SPPB-score) were measured pre- and post-intervention.Results: At baseline, Spearman's correlations demonstrated an inverse relationship (P<0.05) between circulating IL-6 and thigh muscle composition (r = -0.201), strength (r = -0.311), power (r = -0.210), and specific force (r = -0.248), and positive association between IL-6 and stair climb time (r = 0.256; P<0.05). Although the training program did not affect circulating IL-6 levels (P=0.69), reductions in IL-6 were associated with gait speed improvements (r = -0.487; P<0.05) in "higher" IL-6 individuals (>1.36 pg/ml). Moreover, baseline IL-6 was inversely associated (P<0.05) with gains in appendicular lean mass and improvements in SPPB score (r = -0.211 and -0.237, respectively).Conclusions: These findings implicate age-related increases in circulating IL-6 as an important contributor to declines in skeletal muscle strength, quality, function, and training-mediated adaptation. Given the pervasive nature of inflammation among older adults, novel therapeutic strategies to reduce IL-6 as a means of preserving skeletal muscle health are enticing.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Geriatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Geriatrics (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Annan medicin och hälsovetenskap -- Gerontologi, medicinsk/hälsovetenskaplig inriktning (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Other Medical and Health Sciences -- Gerontology, specialising in Medical and Health Sciences (hsv//eng)
Keyword
- Inflammation
- IL-6
- sarcopenia
- older adults
- aging
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Grosicki, Gregor ...
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Barrett, B. B.
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Englund, D. A.
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Liu, C.
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Travison, T. G.
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Cederholm, Tommy
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show more...
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Koochek, Afsaneh
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von Berens, Åsa
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Gustafsson, T.
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Benard, T.
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Reid, K. F.
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Fielding, R. A.
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- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Geriatrics
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Other Medical an ...
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and Gerontology spec ...
- Articles in the publication
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Journal of Frail ...
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Uppsala University
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Karolinska Institutet