ArticleInternational journal of molecular sciences2024
The Impact of High-Dose Fish Oil Supplementation on Mfsd2a, Aqp4, and Amyloid-β Expression in Retinal Blood Vessels of 5xFAD Alzheimer's Mouse Model.
Article in International journal of molecular sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- MFSD2A in health and disease: lysolipid transport, barrier physiology, and translational boundaries.Molecular biomedicine · 2026Review
- Anti-Inflammatory and Antioxidant Effects of ω-3 Polyunsaturated Fatty Acids on Astrocytes and Their Implications for the Blood-Brain Barrier's Integrity and Function.International journal of molecular sciences · 2026Review
- Management and Prevention of Neurodegenerative Disorders: Can Antioxidant-Rich Dietary Interventions Help?Antioxidants (Basel, Switzerland) · 2025Review
- Nutritional Modulation of Impaired Blood-Brain Barrier Integrity and Function in Major Depression.International journal of molecular sciences · 2025Review
- Glymphatic system and psychiatric disorders: need for a new paradigm?Frontiers in psychiatry · 2025Review
- The role of transcytosis in the blood-retina barrier: from pathophysiological functions to drug delivery.Frontiers in pharmacology · 2025Review
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Authors and funding
7 authors.
Funding
Abstract
In patients with Alzheimer's disease (AD) and in animal models, the increased accumulation of amyloid β (Aβ) in retinal blood vessels strongly correlates with brain amyloid deposits and cognitive decline. The accumulation of Aβ in blood vessels may result from impaired transcytosis and a dysfunctional ocular glymphatic system in AD. High-dose fish oil (FO) supplementation has been shown to significantly change the expression of major facilitator superfamily domain-containing protein 2a (Mfsd2a), a key regulator of transcytosis, and Aquaporin 4 (Aqp4), an essential component of the glymphatic system in the retinas of WT mice. We examined the expression of Mfsd2a and Aqp4 in the retinas of 4-month-old 5xFAD female mice supplemented with high-dose FO for three weeks. There was a significant increase in Mfsd2a expression in 5xFAD retinas supplemented with FO compared to control 5xFAD mice. Additionally, the increase in Aqp4 expression observed in 4-month-old 5xFAD retinas, indicative of an impaired glymphatic system, was significantly decreased. Simultaneously, Aβ accumulation in 5xFAD retinal blood vessels was reduced following FO supplementation. These findings suggest that high-dose FO supplementation could serve as an adjunct in developing new treatments aimed at improving the regulation of transcytosis or the function of the glymphatic system in the AD retina.
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