Arief Wildan
Department Of Ophthalmology, Diponegoro University/Dr. Kariadi Hospital

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Journal : Journal of Biomedicine and Translational Research

The Effect of Glutathione on Serum Malondialdehyde (MDA) Level in Retinopathy of Prematurity Rat Models Puspita Kusuma Dewi; Maharani Cahyono; Riski Prihatningtias; Liana Ekowati; Arief Wildan
Journal of Biomedicine and Translational Research Vol 6, No 3 (2020): December2020
Publisher : Faculty of Medicine, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbtr.v6i3.9414

Abstract

Introduction Retinopathy of prematurity (ROP) is the leading cause of blindness in newborn babies worldwide. The benefit of anti-oxidant was investigated for ROP cases by assessing its effect on the oxidative stress of the tissues. Glutathione is a primary endogenous in human body and its supplementation has been discovered for its benefits towards some ocular diseases. This study aims to understand the effect of glutathione on oxidative stress marker, serum Malondialdehyde (MDA), in ROP rat models.Materials and methods This was an experimental study with post test only controlled group design. Sixteen Wistar rats that met our study criterias were divided into two groups, study group and control group. The study group were exposed to 95% oxygen for 4 hours / day followed by normoxic laboratory condition for 20 hours. Glutathione 1.5 mg / day were injected intramuscularly to rats in study group. The control group was exposed to 95% oxygen followed by normoxic laboratory condition with the same manner, and did not received glutathione. This cycle was repeated for 14 days. Both groups were settled in a room temperature settings on days 15-22. Serum sampel was collected from retroorbital vein. The malondialdehyde level was analyzed using MDA analyser kit.Results MDA level was found significantly higher in study group compared to control group (546.99 ng/ml vs 201.51 ng/ml, respectively, p 0,001).Conclusion Our study demonstrated a higher MDA levels in ROP rat models given glutathione injection compared to the control group.
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.
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