Cited by 508Mitochondrial Function and PathologyAutophagy in Disease and TherapyAdipose Tissue and Metabolism

Mitochondrial dysfunction in obesity

de Mello, Aline Haas, Costa, Ana Beatriz, Engel, Jéssica Della Giustina, Rezin, Gislaine Tezza·2018·Life Sciences

Abstract

Obesity leads to various changes in the body. Among them, the existing inflammatory process may lead to an increase in the production of reactive oxygen species (ROS) and cause oxidative stress. Oxidative stress, in turn, can trigger mitochondrial changes, which is called mitochondrial dysfunction. Moreover, excess nutrients supply (as it commonly is the case with obesity) can overwhelm the Krebs cycle and the mitochondrial respiratory chain, causing a mitochondrial dysfunction, and lead to a higher ROS formation. This increase in ROS production by the respiratory chain may also cause oxidative stress, which may exacerbate the inflammatory process in obesity. All these intracellular changes can lead to cellular apoptosis. These processes have been described in obesity as occurring mainly in peripheral tissues. However, some studies have already shown that obesity is also associated with changes in the central nervous system (CNS), with alterations in the blood-brain barrier (BBB) and in cerebral structures such as hypothalamus and hippocampus. In this sense, this review presents a general view about mitochondrial dysfunction in obesity, including related alterations, such as inflammation, oxidative stress, and apoptosis, and focusing on the whole organism, covering alterations in peripheral tissues, BBB, and CNS.

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Crossref · 10.1016/j.lfs.2017.11.019

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Authors
de Mello, A. H., Costa, A. B., Engel, J. D. G., & Rezin, G. T.
Affiliations
Universidade do Sul de Santa Catarina (BR)
Venue
Life Sciences
Publisher
Elsevier BV
Published
2018-01
Volume
192
Pages
26-32
ISSN
0024-3205 (ISSN-L)
OpenAlex
W2770053197
Cited by
508
References
97
Citations by year
2026: 56 · 2025: 85 · 2024: 89 · 2023: 78 · 2022: 64 · 2021: 50 · 2020: 47 · 2019: 29 · 2018: 10
FWCI
2.20
Type
journal article
Language
en
Open access
closed
Locations
  • Life Sciences (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
mitochondrial dysfunction, obesity, oxidative stress, reactive oxygen species, inflammation, apoptosis, TCA cycle, mitochondrial respiratory chain, blood-brain barrier, hypothalamus, hippocampus, central nervous system, peripheral tissues
MeSH terms
Animals, Blood-Brain Barrier, Humans, Inflammation, Mitochondria, Obesity, Oxidative Stress, Mitochondrial Diseases

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