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Lipid Supplementation for Longevity and Gene Transcriptional Analysis in Caenorhabditis elegans

Lipid Supplementation for Longevity and Gene Transcriptional Analysis in Caenorhabditis elegans

Published on: December 9, 2022

Methionine restriction beyond life-span extension.

Gene P Ables¹, Julie R Hens¹, Sailendra N Nichenametla¹

¹Orentreich Foundation for the Advancement of Science, Cold Spring, New York.

Annals of the New York Academy of Sciences

|February 27, 2016

Summary

Dietary methionine restriction (MR) extends lifespan and improves health by reducing oxidative stress and impacting metabolism and cancer. Further research is needed to fully understand its effects on epigenetics and the cell cycle.

Keywords:

adiposity resistance antioxidant cancer progression epigenetics life-span extension methionine restriction

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Area of Science:

Gerontology and Nutritional Biochemistry
Molecular Biology and Cancer Research

Background:

Dietary methionine restriction (MR) is a nutritional intervention known to extend lifespan across various species.
MR influences key physiological processes including adiposity, glucose metabolism, cardiac function, and body size, potentially delaying age-related diseases.

Purpose of the Study:

To review the current research on dietary methionine restriction.
To explore the mechanisms by which MR impacts metabolism, cancer progression, and epigenetic modifications.

Main Methods:

This review synthesizes findings from existing studies on dietary methionine restriction.
It examines the roles of MR-affected biomarkers and the impact of reduced oxidative stress.

Main Results:

MR demonstrates beneficial effects, including resistance to adiposity, improved hepatic glucose metabolism, and preserved cardiac function.
MR reduces mitochondrial oxidative stress and reactive oxygen species, inhibiting cancer cell proliferation and promoting apoptosis.
Biomarkers such as FGF21, adiponectin, leptin, CBS, and IGF-1 are modulated by MR.

Conclusions:

Dietary methionine restriction offers significant health benefits by influencing metabolism and reducing oxidative stress, with implications for cancer prevention.
While MR's effects on epigenetics are suggested, the precise mechanisms require further investigation.