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Fatty Acids and the Metabolic Syndrome

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Bioactives and Nutraceuticals".

Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 3569

Special Issue Editor


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Guest Editor
Federal Scientific Center for Family Health and Human Reproduction Problems, 16 Timiryasev Str., 664003 Irkutsk, Russia
Interests: mitochondria; metabolism; ROS; oxidative stress; aging mechanisms; metabolic gender diversity; metabolic syndrome; ontogenesis
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Special Issue Information

Dear Colleagues,

One of the important scientific subjects that requires a serious reconsideration is in regard to the roles fatty acids play in the physiology and pathology of humans. New data have shown that sex-dependent differences between men and women in physical performances, rates of aging, and longevity are associated with the differences in fatty acids catabolism. The highest rates of ROS production were found to occur during mitochondrial β-oxidation of fatty acids in the heart and skeletal muscles. In the brain, astrocytes utilize fatty acids for supplying neurons with lactate and neuromediators, and recently it was found that neuronal mitochondria perfectly well oxidize fatty acids in the presence of glutamate and metabolites of the TCA cycle. Of particular importance for understanding the mechanisms of human aging and senile diseases is the study of the metabolic syndrome, which is associated with the transition of men and women to the post-reproductive stage of human ontogenesis. The proposed Special Issue will publish experimental data and reviews of researchers working in the related fields.

Dr. Alexander Panov
Guest Editor

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Keywords

  • aging
  • fatty acids
  • metabolic syndrome
  • mitochondria
  • ontogenesis
  • oxidative stress
  • ROS
  • sex diversity

Published Papers (1 paper)

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Research

14 pages, 11603 KiB  
Article
Lipid Droplet Accumulation Promotes RPE Dysfunction
by Tomohiro Yako, Wataru Otsu, Shinsuke Nakamura, Masamitsu Shimazawa and Hideaki Hara
Int. J. Mol. Sci. 2022, 23(3), 1790; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms23031790 - 04 Feb 2022
Cited by 13 | Viewed by 3118
Abstract
Non-exudative age-related macular degeneration (AMD) is an irreversibly progressive retinal degenerative disease characterized by dysfunction and loss of retinal pigment epithelium (RPE). It has been suggested that impaired phagocytosis of the RPE is involved in the progression of non-exudative AMD, but the mechanism [...] Read more.
Non-exudative age-related macular degeneration (AMD) is an irreversibly progressive retinal degenerative disease characterized by dysfunction and loss of retinal pigment epithelium (RPE). It has been suggested that impaired phagocytosis of the RPE is involved in the progression of non-exudative AMD, but the mechanism is not fully clear. In this study, we investigated the effect of lipid droplet accumulation on RPE function. Compared to young mice, the expression of lipid droplet-associated proteins increased in the RPE-choroidal complex, and lipid droplet in the RPE was observed in aged pigmented mice (12-month-old). Repeated treatment of the photoreceptor outer segment against ARPE-19 resulted in lipid droplets in ARPE-19 cells in vitro. Oleic acid treatment for ARPE-19 cells to form intracellular lipid droplet reduced the POS uptake into the ARPE-19 cells without causing a decrease in cell viability. The suppression of the POS uptake by lipid droplet formation improved by inhibiting lipid droplet formation using triacsin C. Moreover, the amount of intracellular reactive oxygen species was suppressed by the triacsin C treatment. These results indicate that lipid droplet is involved in the RPE dysfunction, and inhibiting lipid droplet formation may be a target for preventing and treating non-exudative AMD. Full article
(This article belongs to the Special Issue Fatty Acids and the Metabolic Syndrome)
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