Circadian rhythm disruption and retinal dysfunction: a bidirectional link in Alzheimer's disease?
Open Access
- 15 December 2023
- journal article
- review article
- Published by Wolters Kluwer Health in Neural Regeneration Research
- Vol. 19 (9) , 1967-1972
Abstract
Dysfunction in circadian rhythms is a common occurrence in patients with Alzheimer's disease. A predominant function of the retina is circadian synchronization, carrying information to the brain through the retinohypothalamic tract, which projects to the suprachiasmatic nucleus. Notably, Alzheimer's disease hallmarks, including amyloid-β, are present in the retinas of Alzheimer's disease patients, followed/associated by structural and functional disturbances. However, the mechanistic link between circadian dysfunction and the pathological changes affecting the retina in Alzheimer's disease is not fully understood, although some studies point to the possibility that retinal dysfunction could be considered an early pathological process that directly modulates the circadian rhythm.Keywords
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