Arnila Novitasari Saubig
Department Of Ophthalmology, Faculty Of Medicine, Universitas Diponegoro, Semarang, Indonesia, Jl. Prof. Sudarto, SH, Tembalang, Semarang, Indonesia 50275

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Journal : Journal of Biomedicine and Translational Research

The Discontinuation Effect of Topical Prednisolone on Extracellular Matrix Trabecular Meshwork in Wistar Rat Sekar Kumalasari; Liana Ekowati; Arief Wildan; Hermawan Istiadi; Arnila Novitasari Saubig; Fifin Luthfia Rahmi
Journal of Biomedicine and Translational Research Vol 8, No 1 (2022): April 2022
Publisher : Faculty of Medicine, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbtr.v1i1.13440

Abstract

ABSTRACT Background:Intra ocular pressure (IOP) elevationis one of topical steroids’ side effects. Corticosteroid will initiate matrix metalloproteinase cascade that leads to extra cellular matrix (ECM)of trabecular meshwork (TM) turnover(remodeling) and its acumulationin TM. Objective: To analyze the reversibility of ECM TM in Wistar rat after discontinuation oftopical prednisolone1% at different periode(14 days and 28 days). Methods:This was an experimental study with post test only controlgroup design. Total samples of 28 rats were divided into 4 groups: Treatment groups 1 was treated with  topical prednisolone for 28 days, and was terminated 14 days after discontinuation of the drug.Treatment goups2 was treated topical prednisolone for 28 days and was terminated28 days after discontinuation of the drug. Control 1 was treated withtopical prednisolone for 28 days, and Control 2 was treated with topical saline for 28 days and terminated without periode of discontinuation. Histopathological grading score was used to evaluate ECM TM deposition. Mann-Whitney test and Kruskal-Wallis test were used to analyze the data. Result: Deposition of ECM in TM was not statistically different intreamentgroup 1 and treatment group 2 (p>0.05). Deposition of ECM in TM were statistically differentbetween treatment group 2 and control group 1 (p<0.05). Comparative test showed p<0.001,which means that there was a change in the  thickness of ECM after discontinuation of instillation. Conclusion: ECM TM was thinner in the experimental animals with a longer duration of topical prednisolondiscontinuation, which demonstrate that maintenance remodeling of ECM was happen.
The Effect of Duration of Administration and Discontinuation of Fluorometholone Eye Drops on The Trabecular Meshwork Sandi Muslim; Arnila Novitasari Saubig; Riski Prihatningtias; A. Kentar Arimadyo Sulakso; Fifin Luthfia Rahmi
Journal of Biomedicine and Translational Research Vol 8, No 2 (2022): August 2022
Publisher : Faculty of Medicine, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbtr.v8i2.13817

Abstract

Background: The extracellular matrix (ECM) in the trabecular meshwork (TM) may play a role in the steroid-induced aqueous humor outflow resistance pathophysiology. Topical steroids such as fluorometholone can cause elevated intraocular pressure. Increased synthesis and accumulation of TM ECM proteins due to steroids result in TM dysfunction and elevated intraocular pressure.Purpose: This study aims to analyze the effect of duration of administration and discontinuation of fluorometholone eye drops on the thickness of the TM ECM of Wistar rats.Methods: This study was an experimental study with a posttest-only control group design. The total sample of 25 rats was divided into 5 groups: Treatment 1 was given topical fluorometholone for 4 weeks and stopped for 4 weeks. Treatment 2 was given fluorometholone for 6 weeks and stopped for 4 weeks. Control 1 was given topical fluorometholone for 4 weeks, Control 2 was given topical fluorometholone for 6 weeks, and the negative control was used as a baseline. TM ECM examination was assessed using histopathological score grading. This study used the Mann-Whitney test and the Kruskal-Wallis comparative hypothesis test.Results: The difference in ECM thickness was not statistically significant either between treatment group 1 and treatment group 2 (p=1.000) or control group 1 (p=0,1000). There was a significant change in the thickness of the TM ECM in treatment group 1, treatment 2, control 1, control 2 compared to the negative control (p=0.003, p=0.003, p=0.003, p=0.004).Conclusion: TM ECM thickness did not return to normal thickness after administration of fluorometholone eye drops one drop 4 times a day for 4 weeks and 6 weeks followed by discontinuation of the drug for 4 weeks. The thickness of the TM ECM was thicker in experimental rats with a longer duration of administration of fluorometholone eye drops.
Effect Of Zinc Administration in Preventing Ethambutol-Induced Optic Neuropathy in Wistar Rats Model Riski Prihatningtias; Disti Hardiyanti; Maharani Maharani; Arief Wildan; Arnila Novitasari Saubig; Hermawan Istiadi
Journal of Biomedicine and Translational Research Vol 9, No 2 (2023): August 2023
Publisher : Faculty of Medicine, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbtr.v9i2.17973

Abstract

Background: Ethambutol-induced optic neuropathy (E-TON) is one of the most common optic neuropathies, especially in developing countries with an increasing rate of Tuberculosis (TB). Various outcomes of visual impairment that may lead to permanent visual loss makes it imperative to prescribe supplementation to prevent E-TON. Zinc supplementation is suggested as one of many to prevent E-TON given that ethambutol is a Zn chelator.Purpose: To analyze the apoptosis rate of retinal ganglion cell (RGC) in Wistar rats given ethambutol and Zinc supplementation.Methods: Experimental analysis research. True – experimental design and post-test only using Wistar rats. Subjects were divided into 2 groups, treatment grup was given Ethambutol and Zn and control group was given ethambutol without Zn for 30 days. Assessment of apoptosis rate was concluded by an anatomical pathologist with histopathological scoring using Hematoxylin Eosin staining. Differences between two grups were statistically analyzed using Mann Whitney U test, (Signifikan p <0,05).Results: From Distribution of rate apoptosis in treatment group was found 28.6% without apoptosis, 71.4% score 1 and no score > 1. There was a significantly different in apoptosis retinal ganglion cell between two grups (p= 0.015).Conclusion: The rate of retinal ganglion cell apoptosis was lower in rats treated ethambutol with Zn than without Zn.  Â