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The aim of this study was to examine the efficacy of intra-arterial delivery of <jats:sup>14<\/jats:sup>C-riboflavin (as an \u201cindicator\u201d) and compare it with intravenous and intramuscular administration in an animal model of chemical eye burn. <jats:sup>14<\/jats:sup>C-riboflavin (<jats:sup>14<\/jats:sup>C-I) was administered by intra-arterial (carotid artery), intravenous (femoral vein) and intramuscular (femoral muscle) routes. The total radioactivity was determined over 2\u00a0h in the plasma and structures of the rabbit\u2019s eyes using a scintillation counter. The results of the study show that intravascular administration of <jats:sup>14<\/jats:sup>C-I gives significantly higher concentrations of total radioactivity in the blood and is accompanied by a significant increase in the permeability of the blood-barrier and barrier in eyes suffering from burns. The highest concentration in the plasma and aqueous humour of the anterior chamber of the eye was observed during the first hour with the intra-arterial route of administration of <jats:sup>14<\/jats:sup>C-I in either burnt and unburnt eyes. The distribution of total radioactivity in the structures of the eye over the 2\u00a0h of the experiment showed a higher level of the drug under intra-arterial administered in the uveal regions, namely: the iris, ciliary body, choroid, retina and also the sclera and cornea. This experimental model shows that intra-arterial administration can increase the bioavailability of a drug to the structures of the eye within a short period of time.<\/jats:p>","DOI":"10.1038\/s41598-020-74484-0","type":"journal-article","created":{"date-parts":[[2020,10,14]],"date-time":"2020-10-14T10:04:52Z","timestamp":1602669892000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Efficacy of systemic administration of riboflavin on a rabbit model of corneal alkali burn"],"prefix":"10.1038","volume":"10","author":[{"given":"Maksym","family":"\u017buk","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ekaterina","family":"Lobashova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olga","family":"\u017buk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S\u0142awomir","family":"Wierzba","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,10,14]]},"reference":[{"key":"74484_CR1","doi-asserted-by":"publisher","first-page":"214","DOI":"10.1016\/j.survophthal.2017.09.005","volume":"63","author":"N Sharma","year":"2018","unstructured":"Sharma, N., Kaur, M., Agarwal, T., Sangwan, V. 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