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Related Experiment Video

Updated: Oct 26, 2025

Minimizing Hypoxia in Hippocampal Slices from Adult and Aging Mice

Minimizing Hypoxia in Hippocampal Slices from Adult and Aging Mice

Published on: July 2, 2020

Response to Hypoxia in Cognitive Decline.

James W Larrick¹, Jasmine W Larrick², Andrew R Mendelsohn¹

¹Panorama Research Institute and Regenerative Sciences Institute, Sunnyvale, California, USA.

Rejuvenation Research

|July 27, 2021

Summary

This summary is machine-generated.

Aging

Keywords:

23-BPG aging cognition hypoxia oxygen

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Area of Science:

Gerontology and cellular senescence
Neuroinflammation and metabolic dysfunction
Oxygen homeostasis and aging

Background:

Inflammaging, characterized by increased inflammation with age, involves cellular senescence and metabolic changes.
Aging-related alterations in oxygen metabolism, including reduced O2 levels and impaired hypoxia response, may worsen inflammaging.
Declining erythrocyte 2,3-bisphosphoglycerate (2,3-BPG) and related signaling pathways may compromise brain oxygenation during aging.

Purpose of the Study:

To explore the intricate relationship between oxygen metabolism, inflammaging, and cognitive health during the aging process.
To investigate the role of 2,3-BPG and adenosine signaling in protecting brain tissue from age-related hypoxia.
To identify potential therapeutic targets for mitigating age-related cognitive decline by restoring oxygen levels.

Main Methods:

Review of mechanisms linking aging, inflammation, and oxygen metabolism.
Analysis of the role of erythrocyte 2,3-BPG, BPG mutase, and adenosine A2B receptor in age-related hypoxia.
Discussion of the impact of reduced oxygen on microglia activation and endothelial cell senescence.

Main Results:

Decreased oxygen levels during aging, potentially due to dysfunction in oxygen metabolism, exacerbate inflammaging.
Reduced 2,3-BPG levels may impair the brain's ability to cope with subtle hypoxia, leading to neuroinflammation.
This process promotes endothelial cell senescence, contributing to the aging phenotype.

Conclusions:

Restoring oxygen levels or enhancing 2,3-BPG may be beneficial for cognitive health in aging.
Further research is needed to quantify age-related oxygen reduction in humans and mammals.
Targeting oxygen metabolism presents a promising avenue for combating age-related cognitive decline and inflammaging.