Oral Aminoacids Supplementation Improves Corneal Reinnervation After Photorefractive Keratectomy: A Confocal-Based Investigation

Aim of this retrospective study was to estimate the effect of oral supplementation with amino acids (AA) on corneal nerves regrowth after excimer laser refractive surgery with photorefractive keratectomy (PRK). Based on the pre and post-surgical treatment received, 40 patients with 12 months of foll...

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Main Authors: Anna M Roszkowska, Dario Rusciano, Leandro Inferrera, Alice Antonella Severo, Pasquale Aragona
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-07-01
Series:Frontiers in Pharmacology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphar.2021.680734/full
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author Anna M Roszkowska
Dario Rusciano
Leandro Inferrera
Alice Antonella Severo
Pasquale Aragona
author_facet Anna M Roszkowska
Dario Rusciano
Leandro Inferrera
Alice Antonella Severo
Pasquale Aragona
author_sort Anna M Roszkowska
collection DOAJ
description Aim of this retrospective study was to estimate the effect of oral supplementation with amino acids (AA) on corneal nerves regrowth after excimer laser refractive surgery with photorefractive keratectomy (PRK). Based on the pre and post-surgical treatment received, 40 patients with 12 months of follow-up were distributed in two groups: 20 patients had received oral AA supplementation 7 days before and 30 days after PRK, and 20 patients without AA supplementation, as untreated reference control. All patients followed the same standard post-operative topical therapy consisting of an association of antibiotic and steroid plus sodium hyaluronate during the first week, then steroid alone progressively decreasing during 30 days and sodium hyaluronate for the following 3 months. In vivo corneal confocal microscopy was used to evaluate the presence of sub-basal corneal nerve fibers during 12 months after PRK. Results have shown that sub-basal nerves regenerated significantly faster (p <0.05), and nerve fibers density was significantly higher (p <0.05) with a more regular pattern in the eyes of AA treated patients with respect to the untreated control group. Therefore, our data indicate that oral supplementation with AA improved significantly corneal nerve restoration after PRK and could thus be considered as an additional treatment during corneal surgical procedures.
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spelling doaj.art-7232361231994021b42e81368f0ab6092022-12-21T22:12:33ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122021-07-011210.3389/fphar.2021.680734680734Oral Aminoacids Supplementation Improves Corneal Reinnervation After Photorefractive Keratectomy: A Confocal-Based InvestigationAnna M Roszkowska0Dario Rusciano1Leandro Inferrera2Alice Antonella Severo3Pasquale Aragona4Ophthalmology Clinic, Department of Biomedical Sciences, University of Messina, Messina, ItalySooft Italia SpA Research Center, Catania, ItalyOphthalmology Clinic, Department of Biomedical Sciences, University of Messina, Messina, ItalyOphthalmology Clinic, Department of Biomedical Sciences, University of Messina, Messina, ItalyOphthalmology Clinic, Department of Biomedical Sciences, University of Messina, Messina, ItalyAim of this retrospective study was to estimate the effect of oral supplementation with amino acids (AA) on corneal nerves regrowth after excimer laser refractive surgery with photorefractive keratectomy (PRK). Based on the pre and post-surgical treatment received, 40 patients with 12 months of follow-up were distributed in two groups: 20 patients had received oral AA supplementation 7 days before and 30 days after PRK, and 20 patients without AA supplementation, as untreated reference control. All patients followed the same standard post-operative topical therapy consisting of an association of antibiotic and steroid plus sodium hyaluronate during the first week, then steroid alone progressively decreasing during 30 days and sodium hyaluronate for the following 3 months. In vivo corneal confocal microscopy was used to evaluate the presence of sub-basal corneal nerve fibers during 12 months after PRK. Results have shown that sub-basal nerves regenerated significantly faster (p <0.05), and nerve fibers density was significantly higher (p <0.05) with a more regular pattern in the eyes of AA treated patients with respect to the untreated control group. Therefore, our data indicate that oral supplementation with AA improved significantly corneal nerve restoration after PRK and could thus be considered as an additional treatment during corneal surgical procedures.https://www.frontiersin.org/articles/10.3389/fphar.2021.680734/fullaminoacidsPRKcorneacorneal nervesnerve growthconfocal microscopy
spellingShingle Anna M Roszkowska
Dario Rusciano
Leandro Inferrera
Alice Antonella Severo
Pasquale Aragona
Oral Aminoacids Supplementation Improves Corneal Reinnervation After Photorefractive Keratectomy: A Confocal-Based Investigation
Frontiers in Pharmacology
aminoacids
PRK
cornea
corneal nerves
nerve growth
confocal microscopy
title Oral Aminoacids Supplementation Improves Corneal Reinnervation After Photorefractive Keratectomy: A Confocal-Based Investigation
title_full Oral Aminoacids Supplementation Improves Corneal Reinnervation After Photorefractive Keratectomy: A Confocal-Based Investigation
title_fullStr Oral Aminoacids Supplementation Improves Corneal Reinnervation After Photorefractive Keratectomy: A Confocal-Based Investigation
title_full_unstemmed Oral Aminoacids Supplementation Improves Corneal Reinnervation After Photorefractive Keratectomy: A Confocal-Based Investigation
title_short Oral Aminoacids Supplementation Improves Corneal Reinnervation After Photorefractive Keratectomy: A Confocal-Based Investigation
title_sort oral aminoacids supplementation improves corneal reinnervation after photorefractive keratectomy a confocal based investigation
topic aminoacids
PRK
cornea
corneal nerves
nerve growth
confocal microscopy
url https://www.frontiersin.org/articles/10.3389/fphar.2021.680734/full
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AT leandroinferrera oralaminoacidssupplementationimprovescornealreinnervationafterphotorefractivekeratectomyaconfocalbasedinvestigation
AT aliceantonellasevero oralaminoacidssupplementationimprovescornealreinnervationafterphotorefractivekeratectomyaconfocalbasedinvestigation
AT pasqualearagona oralaminoacidssupplementationimprovescornealreinnervationafterphotorefractivekeratectomyaconfocalbasedinvestigation