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All Journal Acta Biochimica Indonesiana
Sri Widia A Jusman
Department of Biochemistry and Molecular Biology, Faculty of Medicine, Universitas Indonesia, Jakarta
Biochemistry, Genetics & Molecular Biology

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Expression of apelin is related to oxidative damage in heart tissue of rats during chronic systemic hypoxia H R Helmi; Frans Ferdinal; Ani Retno Prijanti; Sri Widia A Jusman; Frans D Suyatna
Acta Biochimica Indonesiana Vol. 1 No. 2 (2018): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.v1i2.18

Abstract

Background: Chronic systemic hypoxia is severe environmental stress for the heart and might lead to the development of heart failure. Apelin is an endogenous peptide that has been shown to have various beneficial effects on cardiac function. Apelin appears to have a role to play in the ventricular dysfunction and maintaining the performance of the heart. Objectives: In the present study we want to investigate the adaptive response of heart tissue to chronic systemic hypoxia and the correlation with apelin expression and oxidative stress in rat. Methods: An experimental study was performed using 28 Sprague-Dawley male rats, 8 weeks of age. Rats were divided into 7 groups 4 each, namely control group; normoxia (O2 atmosphere) and the treatment group of hypoxia (8% O2) for 6 hours; 1;3;5;7 and 14 days respectively. Body weight and heart weight were measured at each treatment. Ventricular thickness was measured by caliper, Apelin mRNA was measured using real-time qRT-PCR with Livak formula and malondialdehyde (MDA) level was used to assess oxidative stress due to cardiac tissue hypoxia. Results: Macroscopic exams showed hypertrophy at day 7th. The relative expression of Apelin mRNA in hypoxic heart is decreased at the beginning and then increased, starting from day-7 to day-14. The MDA levels were significantly increased from day-7 and were strongly correlated with relative expression Apelin. Conclusion: It is concluded that the increase of Apelin expression is related to oxidative stress in heart tissue of rats during chronic systemic hypoxia.
Cytoglobin expression in rat kidney during exposure to systemic chronic hypoxia Ika Superti Daruningrum; Ani Retno Prijanti; Ninik Mudjihartini; Mohamad Sadikin; Sri Widia A Jusman
Acta Biochimica Indonesiana Vol. 3 No. 1 (2020): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.v3i1.55

Abstract

Background: The kidneys in physiological conditions are always in a state of relative hypoxia. Cytoglobin (Cygb) is the newest globin protein found of the globin family. One of the functions of Cygb is in oxygen supply. Cygb expression is found to increase in hypoxic conditions, which are thought to be an adaptation response to hypoxia. Objective: This study aimed to analyze the expression of Cygb in rat kidneys which were exposed to chronic systemic hypoxia. Methods: Twenty five male Sprague-Dawley rats, weighing 150-200 g were used in this experiment. Rats were divided into 5 groups: The control group was exposed to normoxia; the hypoxia groups (10% oxygen / 90% nitrogen) for 1 day; 3 days; 7 days and 14 days. After treatment, rats were sacrificed and their kidneys were taken. Cygb mRNA expression was measured by qRT-PCR, while Cygb protein expression was measured by the ELISA method. Results: The expressions of Cygb mRNA and protein were found to be highest on day 3 of hypoxia and was correlated very strongly and significantly (r2 = 0.96; p <0.05). Conclusion: The highest expression of Cygb on day 3 of chronic systemic hypoxia exposure is suggested as an attempt to restore oxygen supply to the kidneys.
Spirulina platensis effect on oxidative stress of rat’s offspring brain exposed to cigarette smoke during pregnancy and lactation Kenny Cantika Abadi; Febriana Catur Iswanti; Sri Widia A Jusman; Fadilah Fadilah; Ani Retno Prijanti
Acta Biochimica Indonesiana Vol. 5 No. 1 (2022): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.64

Abstract

Background: Maternal exposure to cigarette smoke during pregnancy and lactation might harmful for the fetus. The smoke contains many free radicals that could be eliminated by antioxidant. This study aimed to investigate the effect of Spirulina platensis ethanol extract as antioxidant against cigarette smoke exposure during pregnancy until lactation by assessing oxidative stress markers in neonatal brain tissues. Methods: The experimental study used 26 offspring divided into four groups: (C) = offspring of maternal control group; (Cg) = offspring of maternal exposed to cigarette smoke; (CgSp) = offspring of maternal given spirulina and exposed to cigarette smoke; and (Sp) = offspring of maternal given spirulina only group, during gestation and 9 days lactation (30 days). Each group consisted of 6 offspring obtained from 2 adult females mated with male Sprague-Dawley rats. The exposure of cigarette smoke was 4 burn cigarettes/day for 30 days. The dose of extract was 200 mg/kg BW. The offspring were sacrificed, and the brain tissues were taken for MDA, MnSOD activity, as well as catalase activity, carbonyl, and GSH. Results: There was no significant differences in MDA level between groups. The carbonyl, SOD, and catalase activity did not differ between the control and smoked group. Conclusion: Exposure of four burned cigarettes smoke per day during pregnancy, and 9 days of lactation did not trigger oxidative stress. However, the effect of Spirulina platensis administration on rat offspring brain could not be analyzed.
Co-Authors Ani Retno Prijanti Ani Retno Prijanti Fadilah Fadilah Febriana Catur Iswanti Frans D Suyatna Frans Ferdinal H R Helmi Ika Superti Daruningrum Kenny Cantika Abadi Mohamad Sadikin Ninik Mudjihartini