Cited by 229Dietary Effects on HealthGenetics, Aging, and Longevity in Model OrganismsExercise and Physiological Responses

Long-term moderate calorie restriction inhibits inflammation without impairing cell-mediated immunity: a randomized controlled trial in non-obese humans

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Meydani, Simin N., Das, Sai K., Pieper, Carl F., Lewis, Michael R., Klein, Sam, Dixit, Vishwa D., Gupta, Alok K., Villareal, Dennis T. +6 more·2016·Aging

Abstract

Calorie restriction (CR) inhibits inflammation and slows aging in many animal species, but in rodents housed in pathogen-free facilities, CR impairs immunity against certain pathogens. However, little is known about the effects of long-term moderate CR on immune function in humans. In this multi-center, randomized clinical trial to determine CR's effect on inflammation and cell-mediated immunity, 218 healthy non-obese adults (20-50 y), were assigned 25% CR (n=143) or an ad-libitum (AL) diet (n=75), and outcomes tested at baseline, 12, and 24 months of CR. CR induced a 10.4% weight loss over the 2-y period. Relative to AL group, CR reduced circulating inflammatory markers, including total WBC and lymphocyte counts, ICAM-1 and leptin. Serum CRP and TNF-α concentrations were about 40% and 50% lower in CR group, respectively. CR had no effect on the delayed-type hypersensitivity skin response or antibody response to vaccines, nor did it cause difference in clinically significant infections. In conclusion, long-term moderate CR without malnutrition induces a significant and persistent inhibition of inflammation without impairing key in vivo indicators of cell-mediated immunity. Given the established role of these pro-inflammatory molecules in the pathogenesis of multiple chronic diseases, these CR-induced adaptations suggest a shift toward a healthy phenotype.

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Authors
Meydani, S. N., Das, S. K., Pieper, C. F., Lewis, M. R., Klein, S., Dixit, V. D., Gupta, A. K., Villareal, D. T., Bhapkar, M., Huang, M., Fuss, P. J., Roberts, S. B., Holloszy, J. O., & Fontana, L.
Affiliations
  • Tufts University (US)
  • Duke Medical Center (US)
  • University of Vermont (US)
  • Washington University in St. Louis (US)
  • Yale University (US)
  • Pennington Biomedical Research Center (US)
  • Michael E. DeBakey VA Medical Center (US)
Corresponding author
Meydani, Simin N.
Venue
Aging
Published
2016-07-13
Volume
8
Issue
7
Pages
1416-1431
ISSN
1945-4589 (ISSN-L)
OpenAlex
W2470302757
Cited by
228
References
53
Citations by year
2026: 18 · 2025: 23 · 2024: 25 · 2023: 28 · 2022: 38 · 2021: 29 · 2020: 22 · 2019: 21 · 2018: 17 · 2017: 4 · 2016: 3
FWCI
12.07
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Aging (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Digital Commons@Becker (Washington University School of Medicine) (submittedVersion)
  • Institutional Research Information System (Università degli Studi di Brescia) (submittedVersion)
Funders
  • U.S. Department of Agriculture (#58–1950-0-014)
  • National Institutes of Health
  • National Institute on Aging (U01AG020478, U01AG020487, U01AG020480, U01AG022132)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK056341)
Topics
  • Health Sciences › Medicine › Physiology › Dietary Effects on Health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
caloric restriction, inflammation, cell-mediated immunity, non-obese adults, C-reactive protein, TNF-α, ICAM-1, leptin, lymphocyte count, delayed-type hypersensitivity, vaccine antibody response, weight loss
MeSH terms
Adult, Body Composition, C-Reactive Protein, Energy Intake, Diet, Female, Humans, Inflammation, Male, Middle Aged, Tumor Necrosis Factor-alpha, Biomarkers, Treatment Outcome, Lymphocyte Count, Intercellular Adhesion Molecule-1, Leptin, Caloric Restriction

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