scholarly journals Amaranth leaf extract protects against hydrogen peroxide induced oxidative stress in Drosophila melanogaster

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Ndinawe Johnmark ◽  
Hellen W. Kinyi
Keyword(s):  
Oxidative Stress ◽  
Hydrogen Peroxide ◽  
Antioxidant Activity ◽  
Drosophila Melanogaster ◽  
Leaf Extract ◽  
Ethanolic Extract ◽  
Dependent Manner ◽  
Polyphenol Compounds ◽  
Dose Dependent

Abstract Objective Amaranths leaves are rich in ascorbic acid and polyphenol compounds which have antioxidant activity. The aim of this study was to evaluate their in vivo antioxidant activity. The effect of consumption of Amaranth leaf extract on in vivo antioxidant activity, catalase enzyme activity and H2O2 induced oxidative stress in Drosophila melanogaster flies was assessed. Results Consumption of Amaranth leaf extract was associated with increased survival on exposure to H2o2 in a dose dependent manner in Drosophila melanogaster flies. The study concludes that the ethanolic extract of Amaranth leaves offer protection against hydrogen peroxide-induced oxidative stress.

scholarly journals Amaranth Leaf Extract Protects Against Hydrogen Peroxide Induced Oxidative Stress in Drosophila Melanogaster

2021 ◽  
Author(s):  
Johnmark Ndinawe ◽  
Hellen W. Kinyi
Keyword(s):  
Oxidative Stress ◽  
Hydrogen Peroxide ◽  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Drosophila Melanogaster ◽  
Leaf Extract ◽  
Dependent Manner ◽  
Polyphenol Compounds ◽  
Dose Dependent

Abstract ObjectiveAmaranths leaves are rich in ascorbic acid and polyphenol compounds which have antioxidant activity. The aim of this study was to evaluate their in vivo antioxidant activity. The effect of consumption of Amaranth leaf extract on in vivo antioxidant activity, catalase enzyme activity and H2O2 induced oxidative stress in Drosophila melanogaster flies was assessed.ResultsConsumption of Amaranth leaf extract was associated with increased survival on exposure to H202 in a dose dependent manner in Drosophila melanogaster flies.

scholarly journals A Pilot Study on Antimalarial Effects of Moringa oleifera Leaf Extract in Plasmodium berghei Infection in Mice

2017 ◽  
Vol 15 (2) ◽  
pp. 151-156
Author(s):  
Somrudee NAKINCHAT ◽  
Voravuth SOMSAK
Keyword(s):  
Plasma Glucose ◽  
Crude Extract ◽  
Plasmodium Berghei ◽  
Leaf Extract ◽  
Moringa Oleifera ◽  
Dependent Manner ◽  
Glucose Levels ◽  
New Compounds ◽  
Dose Dependent

The emergence and spread of antimalarial drug resistance of Plasmodium parasites, as well as hypoglycemia, during malaria infection, and subsequent death, are critical problems in malaria-endemic areas. Hence, finding new compounds, especially plant extracts having antimalarial and anti-hypoglycemic activities, are urgently needed. The present study aimed to investigate the antimalarial and anti-hypoglycemic effects of Moringa oleifera leaf extract in Plasmodium berghei infection in mice. Aqueous crude extract of M. oleifera leaves was freshly prepared and used for an efficacy test in vivo. Groups of ICR mice (5 mice in each) were infected with 1´107 infected red blood cells of P. berghei ANKA by intraperitoneal injection and given the extract orally with doses of 100, 500, and 1000 mg/kg for 4 consecutive days. Parasitemia and plasma glucose levels were subsequently measured. The results showed that M. oleifera leaf extract presented significant (p < 0.001) inhibition of parasitemia in a dose-dependent manner. Moreover, this extract exerted anti-hypoglycemia effects in infected mice in a dose-dependent manner. The highest degrees of activity were found at a dose of 1000 mg/kg of the extract. Additionally, no effect on plasma glucose was found in normal mice treated with this extract. It can be concluded that aqueous crude extract of M. oleifera leaves exerted antimalarial and anti-hypoglycemic effects in P. berghei infection in mice.

Antioxidant activity of different extracts of Argentinian medicinal plants against arsenic-induced toxicity in renal cells

2008 ◽  
Vol 27 (4) ◽  
pp. 341-346 ◽  
Author(s):  
EA Soria ◽  
ME Goleniowski ◽  
JJ Cantero ◽  
GA Bongiovanni
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activity ◽  
Medicinal Plants ◽  
Arsenic Exposure ◽  
Vero Cells ◽  
Lipid Hydroperoxides ◽  
Dependent Manner ◽  
Renal Cells ◽  
Popular Medicine ◽  
Dose Dependent

Chronic toxicity of arsenic resulting from drinking water is a health problem encountered in humans, especially in South America and Asia, where a correlation between oxidative stress, tumor promotion, and arsenic exposure has been observed. Differential solvent extraction (petroleum ether (PE); dichloromethane (DCM); methanol (OL) and water (W)) was performed to compare the protective (antioxidant) activity of five Argentinian medicinal plants on arsenite-induced oxidative stress in Vero cells, assayed by hydroperoxide measurement. The results were analyzed using ANOVA followed by the LSD Fisher test. The data showed that arsenite was a pro-oxidant agent which acts in a time–dose-dependent manner. Extracts from Eupatorium buniifolium (PE), Lantana grisebachii (PE, W), Mandevilla pentlandiana (PE, W), and Sebastiania commersoniana (DCM, OL, W) prevented the formation of both aqueous and lipid hydroperoxides, but Heterothalamus alienus only impeded lipid ones. Therefore, antioxidant extracts are potentially beneficial and may have a protective activity against arsenite-induced renal injury. Among these, the aqueous extract of L. grisebachii may represent the most suitable preparation for humans since the traditional usage of this plant in popular medicine is through consumption of tea.

scholarly journals Damaging Effects of Bisphenol A on the Kidney and the Protection by Melatonin: Emerging Evidences from In Vivo and In Vitro Studies

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Anongporn Kobroob ◽  
Wachirasek Peerapanyasut ◽  
Nipon Chattipakorn ◽  
Orawan Wongmekiat
Keyword(s):  
Oxidative Stress ◽  
Bisphenol A ◽  
Mitochondrial Function ◽  
Dependent Manner ◽  
Redox Equilibrium ◽  
Membrane Potential Change ◽  
Kidney Mitochondria ◽  
Dose Dependent

This study investigates the effects of bisphenol A (BPA) contamination on the kidney and the possible protection by melatonin in experimental rats and isolated mitochondrial models. Rats exposed to BPA (50, 100, and 150 mg/kg, i.p.) for 5 weeks demonstrated renal damages as evident by increased serum urea and creatinine and decreased creatinine clearance, together with the presence of proteinuria and glomerular injuries in a dose-dependent manner. These changes were associated with increased lipid peroxidation and decreased antioxidant glutathione and superoxide dismutase. Mitochondrial dysfunction was also evident as indicated by increased reactive oxygen species production, decreased membrane potential change, and mitochondrial swelling. Coadministration of melatonin resulted in the reversal of all the changes caused by BPA. Studies using isolated mitochondria showed that BPA incubation produced dose-dependent impairment in mitochondrial function. Preincubation with melatonin was able to sustain mitochondrial function and architecture and decreases oxidative stress upon exposure to BPA. The findings indicated that BPA is capable of acting directly on the kidney mitochondria, causing mitochondrial oxidative stress, dysfunction, and subsequently, leading to whole organ damage. Emerging evidence further suggests the protective benefits of melatonin against BPA nephrotoxicity, which may be mediated, in part, by its ability to diminish oxidative stress and maintain redox equilibrium within the mitochondria.

scholarly journals Antioxidant activity of ethanolic extract of three Selaginella species from Java Island, Indonesia

2019 ◽  
Vol 20 (12) ◽  
Author(s):  
M Miftahudin ◽  
Rini Hasibuan ◽  
Tatik Chikmawati
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Ethanolic Extract ◽  
Ethanol Extract ◽  
Sod Activity ◽  
Different Doses

Abstract. Miftahudin, Hasibuan RS, Chikmawati T. 2019. Antioxidant activity of ethanolic extract of three Selaginella species from Java Island, Indonesia. Biodiversitas 20: 3715-3722. Three Selaginella species, S. ornata, S. plana, and S. willdenowii, from Java Island, Indonesia, have been known to have antioxidant properties; however, in vivo antioxidant activities of these species have not been reported. This research aimed to evaluate the in vivo antioxidant activity of ethanolic extract of three Selaginella species. The 70% ethanol extract of three Selaginella species at four different doses was administered to mice one day before being treated with oxidative stress. The liver tissue of mice treated with or without oxidative stress was analyzed their lipid peroxidation by measuring MDA concentration and Superoxide Dismutase (SOD) activities. The results showed that there were variations in antioxidant activity among the three Selaginella species. In general, the dose of 0.3 g extract kg-1 BW has been able to reduce lipid peroxidation and increase SOD activity. The administration of S. ornata extract to the mice at 1.2 g extract kg-1 BW reduced the MDA concentration to the lowest level, but the same dose of two other Selaginella extracts caused toxic effects in mice. The antioxidant activities of S. ornata and S. plana were better than that of S. willdenowii extract, and among those species, S. ornata has the best antioxidant activity.

scholarly journals EXPLORATION OF IN VIVO ANTIOXIDANT ACTIVITY OF 50% ETHANOLIC EXTRACT OF SESAMUM INDICUM L. SEED AGAINST HIGH FAT DIET INDUCED RATS

2019 ◽  
pp. 55-61
Author(s):  
ZAFAR JAVED KHAN ◽  
NAEEM AHMAD KHAN
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activity ◽  
Body Weight ◽  
High Fat Diet ◽  
Ethanolic Extract ◽  
Sesamum Indicum ◽  
Control Group ◽  
High Fat ◽  
Lipid Peroxidase

Objective: The aim of the present study was to investigate the in vivo antioxidant potential of 50% ethanolic extract of Sesamum indicum against high-fat diet-induced rats. Methods: Animals were treated with plant extract for 30 d, and a high-fat diet was given to all groups except plain control, throughout, out the study. And alpha-tocopherol acetate (Vit, E) was used as standard. Pre-treatment with 16 mg/100 gm of body weight of 50% ethanolic extract of Sesamum indicum improved the Superoxide dismutase, catalase, glutathione, and lipid peroxidation levels significantly as compared to control group. Results: The present studies revealed that Sesamum indicum has significant in vivo antioxidant activity and can be used to protect tissue from oxidative stress. The result showed that the activities of SOD, catalase, lipid peroxidase, and glutathione, in the group treated with high-fat diet declined significantly than that of normal group. Conclusion: 50% ethanolic extract of in the dose of Sesamum indicum 16 mg/100 gm of body weight, has improved the SOD, catalase, glutathione, and lipid peroxidase levels significantly, which were comparable with high-fat-diet-induced rats. Based on this study we conclude that the 50% ethanolic extract of Sesamum indicum possesses in vivo antioxidant activity and can be employed in protecting tissue from oxidative stress.

scholarly journals EFFICACY OF AN ACTIVE COMPOUND OF THE HERB, ASHWAGANDHA IN PREVENTION OF STRESS INDUCED HYPERGLYCEMIA

2018 ◽  
Vol 10 (10) ◽  
pp. 44 ◽  
Author(s):  
Sarjan H. N. ◽  
Yajurvedi H. N.
Keyword(s):  
Phosphoenolpyruvate Carboxykinase ◽  
Ethanolic Extract ◽  
Dependent Manner ◽  
Stress Exposure ◽  
In Vitro Experiment ◽  
Isolated Compound ◽  
Dose Dependent ◽  
Different Doses

Objective: To find out whether an isolated compound (IC) from the ethanolic extract of roots of ashwagandha prevents stress-induced hyperglycemia by direct interference with the action of increased concentration of corticosterone on hepatocytes or by preventing hyper-secretion of corticosterone or both.Methods: A group of rats served as controls, and those in another group were subjected to restraint (1 h) and forced swimming exercise (15 min), after a gap of 4 h daily for 4 w. The third group of rats received orally IC (5 mg/kg bw/rat) 1 h prior to exposure to stressors. After the last treatment period, a blood sample was collected and serum was separated for the estimation of corticosterone and glucose. In in vitro experiment, hepatocytes were treated with different concentrations of corticosterone (100, 200, 300, 400 and 500 ng/ml). In another set of experiment, hepatocytes were treated with different doses of IC (1, 10, 100, 1000 and 10 000 μg/ml of medium) along with corticosterone (400ng/ml). The concentration of glucose and activities of phosphoenolpyruvate carboxykinase (PEPCK) and glucose-6-phosphatase (G6Pase) were determined after the treatment.Results: Stress exposure caused a significant increase in serum concentration of corticosterone and glucose whereas, administration of IC did not result in similar changes. Further, treatment of corticosterone in in vitro significantly increased the activities of PEPCK and G6Pase and concentration of glucose in a dose-dependent manner in hepatocytes. However, treatment with IC did not interfere with the corticosterone-induced an increase in the activities of PEPCK and G6Pase as well as the concentration of glucose in hepatocytes.Conclusion: The in vivo and in vitro results put together reveal that IC does not directly interfere with the action of corticosterone on hepatocytes. However, it prevents stress-induced hyperglycemia by suppressing hyper-secretion of corticosterone. 

scholarly journals EVALUATION OF ANTIDEPRESSANT ACTIVITY OF ETHANOLIC EXTRACT OF LAGERSTROEMIA SPECIOSA LEAVES IN ALBINO WISTAR RATS

2019 ◽  
pp. 68-74
Author(s):  
VANITA KANASE ◽  
SUNITA VISHWAKARMA
Keyword(s):  
Oxidative Stress ◽  
Normal Saline ◽  
Restraint Stress ◽  
Wistar Rats ◽  
Ethanolic Extract ◽  
Antidepressant Activity ◽  
Control Group ◽  
Dependent Manner ◽  
Lagerstroemia Speciosa ◽  
Dose Dependent

Objective: The objective of the study was to evaluate the antidepressant activity of ethanolic extract of dried leaves of Lagerstroemia speciosa L. (EELS) on acute restraint stress (ARS)-induced depression-like behavior and biochemical alterations in albino Wistar rats. Methods: Thirty rats were randomly divided into five experimental groups. Group-I (normal control) rats received normal saline (2.0 ml/kg, p.o.) daily for 14 days; Group-II (stress control) rats received normal saline (2.0 ml/kg, p.o.) daily for 14 days and subjected to restraint stress on the 13th day. Group-III (standard drug-treated) rats received imipramine (15 mg/kg, p.o.) daily for 14 days and subjected to restraint stress on the 13th day. Groups-IV and V rats were treated with EELS (100 mg/kg and 300 mg/kg, p.o.) daily for 14 days subjected to ARS on the 13th day. Stress-like behavior was assessed by subjecting the rats to behavioral paradigms such as tail-suspension test (TST) and open field test (OFT), 40 min post-restraint stress procedure. Pretest of 10 min for forced swim test (FST) was also given to each rat simultaneously. Then, 23.5 h later, the relevant samples were administered and the main test performed 30 min later. Oxidative stress parameters such as superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA), and extent of lipid peroxidation (LPO) were analyzed in restraint stress-induced animals and control group, following FST on the 15th day. Statistical Analysis: Expression of data was done as a mean standard error of the mean. The normally distributed data were subjected to one-way analysis of variance followed by Dunnett’s test. *p<0.05 was considered statistically significant. Results: It was observed that L. speciosa L. showed a significant dose-dependent decrease in duration of immobility time in TST and FST when compared with the control group in a dose-dependent manner. The results of OFT also showed a dose-dependent increase in locomotor activity. In addition to behavioral tests, EELS also normalized oxidative stress markers such as CAT, SOD, MDA, and LPO in a dose-dependent manner. Conclusion: The results suggest that the ethanolic extract of L. speciosa L. leaves possesses significant antidepressant property, may be recommended as a supplement for the antidepressant activity.

scholarly journals Effects of Low-Dose versus High-Doseγ-Tocotrienol on the Bone Cells Exposed to the Hydrogen Peroxide-Induced Oxidative Stress and Apoptosis

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Nizar Abd Manan ◽  
Norazlina Mohamed ◽  
Ahmad Nazrun Shuid
Keyword(s):  
Oxidative Stress ◽  
Hydrogen Peroxide ◽  
Antioxidant Enzymes ◽  
Low Dose ◽  
Bone Cells ◽  
Dependent Manner ◽  
Low Doses ◽  
Antioxidant Enzymes Activities ◽  
High Doses ◽  
Dose Dependent

Oxidative stress and apoptosis can disrupt the bone formation activity of osteoblasts which can lead to osteoporosis. This study was conducted to investigate the effects ofγ-tocotrienol on lipid peroxidation, antioxidant enzymes activities, and apoptosis of osteoblast exposed to hydrogen peroxide (H2O2). Osteoblasts were treated with 1, 10, and 100 μM ofγ-tocotrienol for 24 hours before being exposed to 490 μM (IC50) H2O2for 2 hours. Results showed thatγ-tocotrienol prevented the malondialdehyde (MDA) elevation induced by H2O2in a dose-dependent manner. As for the antioxidant enzymes assays, all doses ofγ-tocotrienol were able to prevent the reduction in SOD and CAT activities, but only the dose of 1 μM of GTT was able to prevent the reduction in GPx. As for the apoptosis assays,γ-tocotrienol was able to reduce apoptosis at the dose of 1 and 10 μM. However, the dose of 100 μM ofγ-tocotrienol induced an even higher apoptosis than H2O2. In conclusion, low doses ofγ-tocotrienol offered protection for osteoblasts against H2O2toxicity, but itself caused toxicity at the high doses.

scholarly journals Antioxidant Activity and Flavonoids Identification by LC-MS/MS Analysis in Leaf Extract from Trattinnickia rhoifolia Willd

2019 ◽  
Vol 8 (2) ◽  
pp. 13-34
Author(s):  
Lilian Marigo Magalhaes ◽  
Valeria Dornelles Gindri Sinhorin ◽  
Camila Cristina Pereira de Souza ◽  
Rogério de Campos Bicudo ◽  
Adilson Paulo Sinhorin
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Capacity ◽  
Leaf Extract ◽  
Chemical Constituents ◽  
Ethanolic Extract ◽  
Glutathione S Transferase ◽  
Hypolipidemic Action ◽  
Protein Thiols ◽  
First Time

The objectives of this work were to evaluate the antioxidant and hepatoprotective activities in the oxidative stress model induced by paracetamol in male Swiss mice, to evaluate the hypoglycemic and hypolipidemic action and to identify flavonoids in the leaves ethanolic extract from Trattinnickia rhoifolia. By the LC-MS / MS method, eight flavonoids were identified in the hydromethanolic (HM) and ethyl acetate (EA) fractions, except for Amentoflavone, the flavonoids Apigenin, Canferol, Luteolin, Quercetin, Quercetin-3-β-d-glucoside, Rutin and Taxifoline were identified for the first time in this species. These fractions were evaluated for antioxidant capacity (DPPH— test) and their protective effect in vivo through the analysis of superoxide dismutase, catalase, glutathione-s-transferase, non-protein thiols, ascorbic acid, TBARS and carbonylated proteins. The data showed that EA has antioxidant capacity and superior oxidative stress repair in chemical and biological analyzes, besides hypoglycemic and hypolipidemic action. Thus, the present work contributes significantly to the literature, since it is the first study that identifies the chemical constituents and pharmacological properties of leaves extract from T. rhoifolia.

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