Cited by 174Adipokines, Inflammation, and Metabolic DiseasesDiabetes, Cardiovascular Risks, and LipoproteinsAdipose Tissue and Metabolism

Insulin resistance: An adaptive mechanism becomes maladaptive in the current environment—An evolutionary perspective

Tsatsoulis, Agathocles, Mantzaris, Michalis D., Bellou, Sofia, Andrikoula, Maria·2013·Metabolism

Abstract

Human survival has relied upon the ability to withstand starvation through energy storage, the capacity to fight off infection by a proinflammatory immune response, and the ability to cope with physical stressors by an adaptive stress response. Energy storage, mainly as glycogen in liver and triglycerides in adipose tissue, is regulated by the anabolic actions of insulin. On the other hand, mobilization of stored energy during infection, trauma or stress is served by the temporary inhibition of insulin action (insulin resistance) in target tissues by proinflammatory cytokines and stress hormones. In the current environment, high energy intake, low physical activity, and chronic stress favor the storage of surplus fat in adipose tissue depots that far exceeds their storage capacity and liporegulation. Lipid overload in central fat depots initiates an inflammatory response and adipocyte dysfunction with resultant low-grade systemic inflammation and lipid overflow to peripheral tissues. In turn, proinflammatory cytokines and non-oxidized lipid metabolites, accumulated in liver and muscle cells, activate the mechanism of insulin resistance as would occur in the case of infection or stress. The same factors together with the ensuing insulin resistance further contribute to pancreatic β-cell dysfunction and ultimately to type 2 diabetes and cardiovascular disease. The present review supports the hypothesis that insulin resistance evolved as a physiological adaptive mechanism in human survival and that the same mechanism is inappropriately activated on a chronic basis in the current environment, leading to the manifestations of the metabolic syndrome.

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Crossref · 10.1016/j.metabol.2012.11.004

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  • All organisms have physiological adaptive responses to deal with changing environmental conditions and the varying demands of internal physiological states.

    “All organisms have physiological adaptive responses to deal with changing environmental conditions (starvation, fasting, physical threat, stress and infection) and the varying demands of internal physiological states (pregnancy, lactation and adolescence) [14,65].”
  • Multiple lines of evidence support the maladaptive response of human populations to rapidly changing nutritional, physical, psychological and cultural environments in the modern world.

    “Multiple lines of evidence support the maladaptive response of human populations to rapidly changing nutritional, physical, psychological and cultural environments, in the modern world [5,11,14,75].”
  • Details of the mechanisms underlying the proposed adaptive survival advantages of insulin resistance, hyperandrogenism, enhanced energy storage and subfertility have been obtained from paleolithic records, animal models and human populations exposed to adverse environmental conditions.

    “Details of the mechanisms underlying the proposed adaptive survival advantages of IR, hyperandrogenism, enhanced energy storage and subfertility have been obtained from paleolithic records, animal models and human populations exposed to adverse environmental conditions such as war and famine-inflicted starvation [14,16,62,63].”
  • Theories of evolutionary mismatch have been advanced to explain all of the cluster of metabolic diseases associated with PCOS and follow the same set of basic principles and explanations.

    “Theories of evolutionary mismatch have also been advanced to explain all of the cluster of metabolic diseases associated with PCOS (type 2 diabetes, metabolic syndrome, NAFLD and cardiovascular disease) and follow the same set of basic principles and explanations [14,76].”
  • PCOS may be viewed as a conditional phenotype where a specific set of conditions has unmasked normally unexpressed or partly expressed genetic pathways, which then provide a survival advantage under certain environmental conditions.

    “One common theme is that PCOS may be viewed as a “conditional phenotype” where a specific set of conditions has unmasked normally unexpressed or partly expressed genetic pathways, which then provide a survival advantage under certain environmental conditions [14,16].”

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Authors
Tsatsoulis, A., Mantzaris, M. D., Bellou, S., & Andrikoula, M.
Affiliations
  • University of Ioannina (GR)
  • Foundation for Research and Technology Hellas (GR)
Corresponding author
Tsatsoulis, Agathocles
Venue
Metabolism
Publisher
Elsevier BV
Published
2013-05
Volume
62
Issue
5
Pages
622-633
ISSN
0026-0495 (ISSN-L)
OpenAlex
W1996129886
Cited by
174
References
117
Citations by year
2026: 6 · 2025: 15 · 2024: 15 · 2023: 10 · 2022: 9 · 2021: 11 · 2020: 13 · 2019: 16 · 2018: 13 · 2017: 15 · 2016: 10 · 2015: 13 · 2014: 21 · 2013: 7
FWCI
1.64
Type
journal article
Language
en
Open access
closed
Locations
  • Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
insulin resistance, evolutionary perspective, energy storage, insulin signaling, inflammatory cytokines, stress hormones, adipose tissue dysfunction, low-grade inflammation, lipid overload, beta-cell dysfunction, type 2 diabetes, cardiovascular disease, metabolic syndrome, energy balance, physical inactivity
MeSH terms
Adaptation, Physiological, Adipose Tissue, Animals, Environment, Biological Evolution, Humans, Insulin Resistance, Models, Biological, Stress, Physiological, Gene-Environment Interaction

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