NMDA Receptor Hypofunction in the Aging-Associated Malfunction of Peripheral Tissue

Area of Science:

• Neuroscience
• Gerontology
• Physiology

Background:

• Glutamatergic signaling via NMDA receptors (NMDARs) is vital for peripheral tissue function.
• NMDARs and D-serine are implicated in bone remodeling, vascular tone, and skin turnover.
• Aging is associated with functional decline in these tissues, mirroring NMDAR hypofunction.

Purpose of the Study:

• To investigate the potential role of NMDAR hypofunction in age-related peripheral tissue deterioration.
• To explore whether decreased D-serine levels contribute to this hypofunction.
• To assess D-serine as a therapeutic target for mitigating aging effects on peripheral tissues.

Main Methods:

• The study reviews existing literature on NMDAR function in bone, vasculature, and skin.
• It analyzes the parallels between aging-related tissue changes and NMDAR hypofunction.
• It examines the impact of D-serine on these tissues and its potential therapeutic effects.

Main Results:

• NMDARs and D-serine are integral to bone remodeling, vascular regulation (corpus cavernosum, renal glomerulus), and skin turnover.
• Hypofunction of NMDARs in peripheral tissues presents symptoms similar to aging.
• D-serine levels may decrease with age, contributing to NMDAR hypofunction.

Conclusions:

• Age-related decline in bone, vasculature, and skin may stem from NMDAR hypofunction.
• Decreased D-serine is a potential cause of this hypofunction.
• D-serine supplementation could be a therapeutic strategy to combat peripheral tissue aging.