@conference{
author = "Jovanović Macura, Irena and Đuričić, Ivana and Major, Tamara and Milanović, Desanka and Brkić, Marjana and Sobajić, Slađana and Kanazir, Selma and Ivković, Sanja",
year = "2023",
abstract = "Mfsd2a is expressed mainly in the endothelial cells and is an essential regulator of
blood vessel transcytosis. Therefore, decrease in Mfsd2a expression can be a risk
factor for developing leaky blood vessels. Mfsd2a is also the main docosahexaenoic
acid (DHA, C22:6n3) transporter. DHA, an omega-3 fatty acid, is one of the main
structural lipids of the neuronal and vascular retina, crucial for the normal functioning
of photoreceptors (PRs). However, the capacity of the retina to synthesize DHA is
limited, and the maintenance of retinal DHA content relies on the uptake from blood borne lipids. The currently recommended FO doses yielded low PUFAs tissue
bioavailability, and supplementation with higher doses has been increasingly
recommended. Nevertheless, the effects of higher FO doses on retinal Mfsd2a
expression and blood vessels coverage are unknown.
Western blot and qPCR analyses showed that high dose FO supplementation increased
Mfsd2a expression in the retina. Immunohistochemical analyses of Mfsd2a expression
on retinal blood vessels (labeled with 488-conjugated Lycopersicon esculentum,
lectin) and subsequent ImageJ analyses revealed 1.32-fold increase in the Mfsd2a
retinal blood vessel coverage. In the same time the pericyte blood vessel coverage
(CD13+ cells) was not affected with FO supplementation, and the increase in Mfsd2a
blood vessel expression is not the result of the increased pericyte coverage.
Therefore, the high-dose FO supplementation emerges as the prophylactic fortifier of
the retinal blood vessels that can serve either as prophylaxis in the healthy eye or as an
adjuvant in developing targeted manipulations of the barrier during diseases.",
publisher = "Belgrade: Serbian Neuroscience Society",
journal = "Book of abstracts: 8th Congress of Serbian neuroscience society with international participation; 2023 May 31 - Jun 2; Belgrade, Serbia",
title = "The high-dose fish oil (FO) supplementation increased Mfsd2a expression in the retina of healthy mice",
pages = "66",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5858"
}