A Novel Topical Ophthalmic Formulation to Mitigate Acute Mustard Gas Keratopathy In Vivo: A Pilot Study.
Transl Vis Sci Technol
; 9(12): 6, 2020 11.
Article
em En
| MEDLINE
| ID: mdl-33200047
ABSTRACT
Purpose:
This pilot study investigated the in vivo therapeutic potential and tolerability of a multimodal ophthalmic formulation, topical eye drops (TED), for acute mustard gas keratopathy (MGK) using a rabbit model.Methods:
Twenty New Zealand White rabbits were used. Only right eyes of 18 rabbits (oculus dexter [OD]) received single sulfur mustard gas (SM) vapor injury, whereas contralateral eyes were left untreated or received TED for tolerabilty evaluation. Two rabbit eyes received no treatment and served as age-matched naive control. The four groups were Naive (oculus sinister [OS] untreated eyes; n = 9); TED (OS treated only with TED BID for 3 days; n = 9); SM (OD exposed to SM vapor; n = 9); and SM+TED (OD exposed to SM+TED BID for 3 days; n = 9). Ocular examination in live rabbits were performed utilizing slit-lamp biomicroscopy, Fantes grading system, fluorescein staining, Schirmer's tests, pachymetry, and applanation tonometry. Cellular and molecular changes in rabbit corneas were assessed after humane euthanasia on day-3 and day-7 with histopathological and real-time polymerase chain reaction PCR techniques.Results:
TED to rabbit eyes was found tolerable in vivo. SM-exposed eyes showed significant increase in Fantes scores, central corneal thickness (CCT), Schirmer's test, epithelium-stroma separation, and corneal edema. TED mitigated clinical symptoms by reducing corneal edema, Fantes scores, CCT, and Schirmer's test. Further, TED decreased SM-induced corneal haze, inflammatory and profibrotic markers, transforming growth factor-TGF-ß1 and cyclooxygenase-2COX-2, and damage to corneal structure, including epithelial-stromal integrity.Conclusions:
The developed multimodal eyedrop formulation, TED, has potential to mitigate acute MGK effectively in vivo. Translational Relevance TED is effective against MGK.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Edema da Córnea
/
Doenças da Córnea
/
Gás de Mostarda
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Transl Vis Sci Technol
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Estados Unidos