Cited by 103Nutrition and Health in AgingNutrition and Health StudiesClinical Nutrition and Gastroenterology

Nutritional factors and immunological ageing

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Lesourd, Bruno·2006·Proceedings of The Nutrition Society

Abstract

Undernutrition profoundly affects immune responses, particularly at the extremities of life: in infants and in the elderly. The present review focuses on this interrelationship in the elderly. It describes three different stages of ageing: stage 1, healthy ageing, which is observed in very healthy elderly individuals who have no nutritional deficit; stage 2, common ageing, which is observed in most elderly individuals in whom various micronutrient deficits are found; stage 3, pathological ageing, which is observed in patients with protein-energy deficiency. Stage 1, primary immune ageing, is essentially characterized by changes in T-cell subsets but no change in T-cell function; T-cell function is reduced only in the very elderly (>90 years old). Stage 2, secondary immune ageing, is influenced by micronutrient deficits that may be corrected by providing nutritional supplements. Furthermore, immune responses may also be enhanced by supplementation of subjects who have no micronutrient deficits, indicating that the immune system of elderly individuals is highly susceptible to the influence of micronutrients. In stage 3, tertiary immune ageing, the immune responses are strongly related to the decreased nutritional status. In these patients decreased immune responses lead to long-lasting acute-phase responses, which induce greater use of nutritional reserves during disease and lead to increased frailty. As nutritional status has a marked effect on immune responses in elderly individuals, nutritional therapy should be given to elderly individuals who have nutrient deficits, and perhaps also to individuals who do not have nutrient deficits in order to promote healthy ageing and extend the lifespan.

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  1. Chandra RK (1993) Effect of vitamin and trace-element supple- mentation: effects on nutritional, lipid and thymic status in an elderly population. American Journal of Clinical Nutrition 57, 566-572.
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Authors
Lesourd, B.
Affiliations
Centre Hospitalier Universitaire de Clermont-Ferrand (FR)
Corresponding author
Lesourd, Bruno
Venue
Proceedings of The Nutrition Society
Published
2006-08
Volume
65
Issue
3
Pages
319-325
ISSN
  • 0029-6651 (ISSN-L)
  • 1475-2719
OpenAlex
W2049339327
Cited by
103
References
51
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2023: 5 · 2022: 5 · 2021: 4 · 2020: 1 · 2019: 8 · 2018: 5 · 2017: 2 · 2016: 2 · 2015: 5 · 2014: 7 · 2013: 10 · 2012: 11
FWCI
0.74
Type
journal article
Language
en
Open access
Locations
  • Proceedings of The Nutrition Society (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutrition and Health Studies
  • Health Sciences › Nursing › Nutrition and Dietetics › Clinical Nutrition and Gastroenterology
Keywords
older adults, malnutrition, micronutrient deficiency, protein-energy malnutrition, T cell subsets, T cell function, dietary supplementation, acute phase response, frailty, healthy aging, nutritional therapy, lifespan extension
MeSH terms
Aged, Aged, 80 and over, Aging, Humans, Immunity, Cellular, Nutritional Physiological Phenomena, Nutritional Status, Micronutrients

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