Effect of Diquafosol Ophthalmic Solution on Airflow-Induced Ocular Surface Disorder in Diabetic Rats

Atsuyoshi Dota, Asuka Sakamoto, Takashi Nagano, Tadahiro Murakami, Takeshi Matsugi Nara Research & Development Center, Santen Pharmaceutical Co., Ltd, Ikoma-shi, Nara, JapanCorrespondence: Atsuyoshi DotaNara Research & Development Center, Santen Pharmaceutical Co., Ltd., 8916-16 Ikom...

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Autores principales: Dota A, Sakamoto A, Nagano T, Murakami T, Matsugi T
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Publicado: Dove Medical Press 2020
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spelling oai:doaj.org-article:987742177c7e459d905ced74f754750f2021-12-02T08:58:22ZEffect of Diquafosol Ophthalmic Solution on Airflow-Induced Ocular Surface Disorder in Diabetic Rats1177-5483https://doaj.org/article/987742177c7e459d905ced74f754750f2020-04-01T00:00:00Zhttps://www.dovepress.com/effect-of-diquafosol-ophthalmic-solution-on-airflow-induced-ocular-sur-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Atsuyoshi Dota, Asuka Sakamoto, Takashi Nagano, Tadahiro Murakami, Takeshi Matsugi Nara Research & Development Center, Santen Pharmaceutical Co., Ltd, Ikoma-shi, Nara, JapanCorrespondence: Atsuyoshi DotaNara Research & Development Center, Santen Pharmaceutical Co., Ltd., 8916-16 Ikoma-shi, Nara 630-0101, JapanTel +81 743 79 4525Fax +81 743 79 4591Email atsuyoshi.dota@santen.comPurpose: To examine the effect of 3% diquafosol ophthalmic solution (DQS) on ocular surface disorders in diabetic model rats maintained in a continuous airflow condition.Methods: Goto–Kakizaki (GK) rats, a spontaneous model of type 2 diabetes, were exposed to constant airflow for 8 weeks. After the establishment of the animal model in this environment, DQS or saline was instilled six times a day into GK rat eyes for 6 weeks. Schirmer’s test was performed before and after 6-week instillations. Corneal fluorescein staining was scored at 2-, 4-, and 6-week instillations. Touch thresholds for the cornea were also determined using a Cochet–Bonnet esthesiometer before and after 6-week instillations.Results: The mean Schirmer’s test score after instillation of DQS was twice higher than that recorded for saline alone. DQS significantly decreased corneal staining scores at 4- and 6-week instillations. No changes in touch thresholds were observed before and after 6-week instillations.Conclusion: These results suggest that DQS improves corneal epithelial damage by stimulating tear secretion without influencing corneal sensation in diabetic keratopathy. Thus, DQS may have potential for treatment of diabetic patients with dry eye.Keywords: diquafosol ophthalmic solution, corneal epithelial damage, tear volume, diabetic keratopathy, Goto–Kakizaki ratDota ASakamoto ANagano TMurakami TMatsugi TDove Medical Pressarticlediquafosol ophthalmic solutioncorneal epithelial damagetear volumediabetic keratopathygoto–kakizaki ratOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 14, Pp 1019-1024 (2020)
institution DOAJ
collection DOAJ
language EN
topic diquafosol ophthalmic solution
corneal epithelial damage
tear volume
diabetic keratopathy
goto–kakizaki rat
Ophthalmology
RE1-994
spellingShingle diquafosol ophthalmic solution
corneal epithelial damage
tear volume
diabetic keratopathy
goto–kakizaki rat
Ophthalmology
RE1-994
Dota A
Sakamoto A
Nagano T
Murakami T
Matsugi T
Effect of Diquafosol Ophthalmic Solution on Airflow-Induced Ocular Surface Disorder in Diabetic Rats
description Atsuyoshi Dota, Asuka Sakamoto, Takashi Nagano, Tadahiro Murakami, Takeshi Matsugi Nara Research & Development Center, Santen Pharmaceutical Co., Ltd, Ikoma-shi, Nara, JapanCorrespondence: Atsuyoshi DotaNara Research & Development Center, Santen Pharmaceutical Co., Ltd., 8916-16 Ikoma-shi, Nara 630-0101, JapanTel +81 743 79 4525Fax +81 743 79 4591Email atsuyoshi.dota@santen.comPurpose: To examine the effect of 3% diquafosol ophthalmic solution (DQS) on ocular surface disorders in diabetic model rats maintained in a continuous airflow condition.Methods: Goto–Kakizaki (GK) rats, a spontaneous model of type 2 diabetes, were exposed to constant airflow for 8 weeks. After the establishment of the animal model in this environment, DQS or saline was instilled six times a day into GK rat eyes for 6 weeks. Schirmer’s test was performed before and after 6-week instillations. Corneal fluorescein staining was scored at 2-, 4-, and 6-week instillations. Touch thresholds for the cornea were also determined using a Cochet–Bonnet esthesiometer before and after 6-week instillations.Results: The mean Schirmer’s test score after instillation of DQS was twice higher than that recorded for saline alone. DQS significantly decreased corneal staining scores at 4- and 6-week instillations. No changes in touch thresholds were observed before and after 6-week instillations.Conclusion: These results suggest that DQS improves corneal epithelial damage by stimulating tear secretion without influencing corneal sensation in diabetic keratopathy. Thus, DQS may have potential for treatment of diabetic patients with dry eye.Keywords: diquafosol ophthalmic solution, corneal epithelial damage, tear volume, diabetic keratopathy, Goto–Kakizaki rat
format article
author Dota A
Sakamoto A
Nagano T
Murakami T
Matsugi T
author_facet Dota A
Sakamoto A
Nagano T
Murakami T
Matsugi T
author_sort Dota A
title Effect of Diquafosol Ophthalmic Solution on Airflow-Induced Ocular Surface Disorder in Diabetic Rats
title_short Effect of Diquafosol Ophthalmic Solution on Airflow-Induced Ocular Surface Disorder in Diabetic Rats
title_full Effect of Diquafosol Ophthalmic Solution on Airflow-Induced Ocular Surface Disorder in Diabetic Rats
title_fullStr Effect of Diquafosol Ophthalmic Solution on Airflow-Induced Ocular Surface Disorder in Diabetic Rats
title_full_unstemmed Effect of Diquafosol Ophthalmic Solution on Airflow-Induced Ocular Surface Disorder in Diabetic Rats
title_sort effect of diquafosol ophthalmic solution on airflow-induced ocular surface disorder in diabetic rats
publisher Dove Medical Press
publishDate 2020
url https://doaj.org/article/987742177c7e459d905ced74f754750f
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