# Kynurenine pathway: a possible new mechanism for exercise in the prevention and treatment of Alzheimer's disease

## TL;DR

This paper explores how exercise might help prevent or treat Alzheimer's disease by influencing the kynurenine pathway, which is linked to brain health.

## Contribution

The paper proposes a novel mechanism by which exercise may benefit Alzheimer's disease through modulation of the kynurenine pathway.

## Key findings

- The kynurenine pathway is a key intersection of factors contributing to Alzheimer's disease progression.
- Exercise impacts the kynurenine pathway, potentially promoting neuroprotective metabolites that improve AD symptoms.

## Abstract

Alzheimer's disease (AD) is the most common neurodegenerative disease in clinical practice. The kynurenine pathway (KP) is a potential intersection of factors associated with the development of AD (central nervous inflammation, glutamate excitotoxicity, and tau phosphorylation, among others). Pharmacological modulators targeting KP enzymes, such as inhibitors or agonists, and their major neuroprotective metabolites are beneficial in alleviating AD progression. Exercise significantly improves AD symptoms and also impacts KP pharmacokinetics. Promoting the production of neuroprotective active metabolites by KP may be one of the central mechanisms by which exercise improves AD symptoms. This article reviews the possible role of KP in AD neurodegeneration and AD exercise prevention and treatment.