scholarly journals The subchronic effects of 3,4-methylendioxymethamphetamine on oxidative stress in rat brain

2014 ◽  
Vol 66 (3) ◽  
pp. 1075-1081
Author(s):  
Ivan Simic ◽  
Violeta Iric-Cupic ◽  
Rada Vucic ◽  
Marina Petrovic ◽  
Violeta Mladenovic ◽  
...  

The aim of the present study was to evaluate the subchronic effects of 3,4-methylenedioxymethamphetamine on several oxidative stress markers: index of lipid peroxidation (ILP), superoxide dismutase (SOD) activity, superoxide radical (O2.-) levels, and reduced glutathione (GSH) levels in the frontal cortex, striatum and hippocampus of the rat. The study included 64 male Wistar rats (200-250g). The animals were treated per os with of 5, 10, or 20 mg/kg of 3,4-methylenedioxymethamphetamine (MDMA) every day for 15 days. The subchronic administration of MDMA resulted in an increase in ILP, SOD and O2.-, and a decrease in GSH, from which we conclude that oxidative stress was induced in rat brain.

2018 ◽  
Vol 15 (1) ◽  
pp. 71-77 ◽  
Author(s):  
Nagapuri Kiran Kumar ◽  
Mesram Nageshwar ◽  
Karnati Pratap Reddy

This study reports the ameliorative role of curcumin against sodium fluoride (NaF) induced oxidative stress in the brain of rats. The rats were divided into control, NaF (20 mg/kg), NaF+Curcumin (20mg/kg) and Curcumin (20mg/kg) groups respectively and treated at everyday interval for 60 consecutive days. Oxidative stress markers in the brain were measured at 60th day. NaF treatment significantly increased LPO content, but decreased the level of GSH and activities of SOD, GPx, and CAT the brain of rats in comparison to the control rats. Oral administration of curcumin to fluoride exposed rats significantly reversed the content of lipid peroxidation, as well as enhanced the level of GSH and SOD, GPx and CAT activities to normal compared to NaF exposed rats. Thus, curcumin showed the potential to prevent sodium fluoride induced oxidative damage in the brain of rats and curcumin may be useful agents against neurodegeneration in the brain.


Author(s):  
Vidya M. Mahalmani ◽  
Anil P. Hogade ◽  
Sanjay K. Mishra

Background: Growing evidence supports relationship between depression and inflammation. The hypothesis of involvement of inflammatory pathways in depression is supported by the findings of increased levels of proinflammatory cytokines. So, we decided to evaluate the effect of sitagliptin on depression using forced swim test (FST) and possible effects of sitagliptin on serum oxidative stress markers and cytokine gene expression in rat hippocampus.Methods: FST model was used to evaluate antidepressant effect in male wistar rats. Rats in group I (control group) were given normal saline, group II (standard group) were given fluoxetine, group III and IV (test groups) were given sitagliptin 5 mg/kg and sitagliptin 9 mg/kg respectively. All the drugs in all groups were given per orally. At the end, animals were sacrificed and blood was collected. Hippocampus of rat brain was dissected out. Serum oxidative stress markers and hippocampal pro inflammatory cytokine gene expression analysis was carried out.Results: Sitagliptin 5 mg/kg and 9 mg/kg showed reduction in depressive symptoms and hippocampal cytokine gene expression in comparison to control. In case of serum oxidative stress markers, there was statistically significant reduction in nitric oxide levels with stagliptin 9 mg/kg. Although there was a decrease in the levels of catalase and increase in the levels of glutathione with standard and test groups, the results were not statistically significant.Conclusions: The present study showed significant antidepressant effect activity of standard and test groups. Hence, further research should be carried out to substantiate above results.


2020 ◽  
Vol 10 (9) ◽  
pp. 592
Author(s):  
Elizabeth Ruiz-Sánchez ◽  
José Pedraza-Chaverri ◽  
Omar N. Medina-Campos ◽  
Perla D. Maldonado ◽  
Patricia Rojas

Depression is a psychiatric disorder, and oxidative stress is a significant mechanism of damage in this mood disorder. It is characterized by an enhancement of oxidative stress markers and low concentrations of endogenous antioxidants, or antioxidants enzymes. This suggests that antioxidants could have an antidepressant effect. S-allyl cysteine (SAC) is a compound with antioxidant action or free radical scavenger capacity. The purpose of the current research was to evaluate the antidepressant-like effect as well as the antioxidant role of SAC on a preclinical test, using the Porsolt forced swim test (FST). SAC (30, 70, 120, or 250 mg/kg, ip) was administered to male BALB/c mice daily for 17 days, followed by the FST at day 18. Oxidative stress markers (reactive oxygen species, superoxide production, lipid peroxidation, and antioxidant enzymes activities) were analyzed in the midbrain, prefrontal cortex, and hippocampus. SAC (120 mg/kg) attenuated the immobility scores (44%) in the FST, and protection was unrelated to changes in locomotor activity. This antidepressant-like effect was related to decreased oxidative stress, as indicated by lipid peroxidation and manganese-superoxide dismutase (Mn-SOD) activity in the hippocampus. SAC exerts an antidepressant-like effect that correlated, in part, with preventing oxidative damage in hippocampus.


Author(s):  
Ijeoma Ezebuiro ◽  
Chibuike Obiandu ◽  
Friday Saronee ◽  
Adesua C. Obiandu

Introduction: Cnidoscolus aconitifolius is considered to be an important and effective medicinal plant in folklore remedies where it has been applied as an alternative therapy for the treatment of various ailments. Aim: The present study aims to determine the effects of Cnidoscolus aconitifolius on lipid profile and some oxidative stress markers of male Wistar rats. Methodology: A total of 15 male wistar rats were procured for the study and randomly assigned into three groups of 5 rats each. Group 1 served as control and received distilled water only. Group 2 received 200 mg/kg and group 3 received 400mg/kg of the hydromethanolic (1:4) extract of Cnidoscolus aconitifolius which was administered as single daily dose using oral cannula. On completion of treatment, blood samples were collected by cardiac puncture for determination of some serum lipid parameters and oxidative stress markers. Results: Results showed that there were no significant difference in the serum level of total cholesterol, triglyceride, low density lipoprotein cholesterol and high density lipoprotein cholesterol at both doses of the extract, compared to control. However, compared to control, there was a significant (p<0.05) increase in the activity of superoxide dismutase and glutathione reductase but significant reduction in malondialdehyde level. The catalase enzyme activity was not significant. Conclusion: The result obtained suggest that the extract may be useful in reducing oxidative stress by improving some antioxidant enzyme activities and may also prevent cell death due to lipid peroxidation.


2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Geetanjali Jindal ◽  
Prashant Chavan ◽  
Ravinder Kaur ◽  
Shivani Jaswal ◽  
Kamal Kumar Singhal ◽  
...  

<p>The present study evaluates carotid intimamedia thickness (CIMT) in children with β thalassemia major to assess atherosclerosis and its relation to the underlying proposed causative mechanisms <em>via</em> lipid peroxidation product malondialdehyde (MDA), oxidized lowdensity lipoproteins (LDL), total antioxidant level, and lipid profile. A cross sectional study was conducted on 62 children (31 cases and 31 controls). CIMT by high resolution ultrasound and biochemical parameters <em>i.e.</em>, total cholesterol, triglycerides, high-density lipoproteins, LDL, Oxidized LDL, lipoprotein (a), lipid peroxidation product MDA and total antioxidant were measured in enrolled subjects and compared. In our study, CIMT was significantly increased in β thalassemia major patients’ as compared to healthy controls. Mean CIMT in cases was 0.69±0.11 mm and in controls 0.51±0.07 mm. Mean oxidized LDL (EU/mL) in cases 39.3±34.4 (range 14.4 to 160) was significantly raised (P=0.02, t test) as compared to controls 23.9±13.4 (range 12 to 70). In our study we found MDA levels (nmol/mL) to be increased in β thalassemia patients as compared to controls. Mean MDA was 10.0±3.27 (4.41 to 17.48) in cases while in controls was 6.87±4.55 (1.5 to 17.9). Our study results show CIMT as an early marker of atherogenesis in β thalassemia major. Oxidative stress markers are also increased in β thalassemia major patients and lipoprotein (a) shows a positive correlation with CIMT. The present study points towards various atherogenetic mechanisms in β thalassemia major.</p><p> </p><p>本研究评价β重型地中海贫血患儿颈动脉内膜中层厚度(CIMT),以评估动脉粥样硬化,以及与潜在通过血脂过氧化反应产物丙二醛(MDA)、氧化低密度脂蛋白(LDL)、总抗氧化水平和血脂谱所提出致病机制之间的关系。 在62名儿童(31例病例和31例对照)中进行了一项横断面研究。 在入组受试者中通过高分辨率超声和生化指标(即总胆固醇、甘油三酯、高密度脂蛋白、LDL、氧化LDL,脂蛋白(a)、血脂过氧化产物MDA和总抗氧化剂)测量CIMT并进行比较。 在我们的研究中,CIMT在β重型地中海贫血患者中比健康对照组显著增加。 病例组中的平均CIMT为0.69±0.11 mm,对照组0.51±0.07 mm。病例组中平均氧化LDL(EU/mL)为39.3±34.4(从14.4到160的范围)与对照组的23.9±13.4(12至70的范围)相比显著升高(P = 0.02,t检验)。 在我们的研究中,我们发现β地中海贫血患者中的MDA水平(nmol/mL)比对照组更高。 病例组中的平均MDA为10.0±3.27(4.41至17.48),而对照组为6.87±4.55(1.5到17.9)。 我们的研究结果表明,CIMT是β重型地中海贫血动脉粥样硬化的早期标记物。 氧化应激标记物在β重型地中海贫血患者中也有增加,脂蛋白(a)显示出与CIMT呈正相关。 本研究针对β重型地中海贫血中的各种动脉粥样硬化机制。</p>


2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Olufunke Olorundare ◽  
Adejuwon Adeneye ◽  
Akinyele Akinsola ◽  
Sunday Soyemi ◽  
Alban Mgbehoma ◽  
...  

Trastuzumab (TZM) is a humanized monoclonal antibody that has been approved for the clinical management of HER2-positive metastatic breast and gastric cancers but its use is limited by its cumulative dose and off-target cardiotoxicity. Unfortunately, till date, there is no approved antidote to this off-target toxicity. Therefore, an acute study was designed at investigating the protective potential and mechanism(s) of CVE and IGE in TZM-induced cardiotoxicity utilizing cardiac enzyme and oxidative stress markers and histopathological endpoints. 400 mg/kg/day CVE and IGE dissolved in 5% DMSO in sterile water were investigated in Wistar rats injected with 2.25 mg/kg/day/i.p. route of TZM for 7 days, using serum cTnI and LDH, complete lipid profile, cardiac tissue oxidative stress markers assays, and histopathological examination of TZM-intoxicated heart tissue. Results showed that 400 mg/kg/day CVE and IGE profoundly attenuated increases in the serum cTnI and LDH levels but caused no significant alterations in the serum lipids and weight gain pattern in the treated rats. CVE and IGE profoundly attenuated alterations in the cardiac tissue oxidative stress markers’ activities while improving TZM-associated cardiac histological lesions. These results suggest that CVE and IGE could be mediating its cardioprotection via antioxidant, free radical scavenging, and antithrombotic mechanisms, thus, highlighting the therapeutic potentials of CVE and IGE in the management of TZM-mediated cardiotoxicity.


Antioxidants ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 444
Author(s):  
Agnieszka Żak ◽  
Natalia Siwińska ◽  
Elżbieta Chełmecka ◽  
Barbara Bażanów ◽  
Ewa Romuk ◽  
...  

The study aims to assess the impact of age, pituitary pars intermedia dysfunction (PPID) and insulin dysregulation (ID) in horses on selected oxidative stress markers. The study includes 32 horses, divided into three groups: “young” adult group (aged 8–16 years old) “geriatric” group (aged 18–24 years old) and the “PPID” group (aged 15–31 years old). The PPID group was further divided into two subgroups: PPID ID+ and PPID ID− based on presence or absence of ID. We measured serum antioxidant stress markers in all horses: total oxidant status (TOS), total antioxidant capacity (TAC), ceruloplasmin (CER), lipofuscin (LPS), malondialdehyde (MDA) and thiols concentrations (containing sulfhydryl group -SH) as well as enzymatic systems: total superoxide dismutase (SOD), cytoplasmic SOD (CuZnSOD), mitochondrial SOD activity (MnSOD). Total serum thiols were significantly lower in the geriatric group and in the PPID group compared to the young group. The MnSOD concentration was higher in the PPID ID+ group compared to the PPID ID−. LPS and MDA concentrations were lower in the PPID ID+ group compared to the PPID ID− group. In the selected study groups of horses, older age, the presence of PPID and ID in the case of PPID had no effect on the studied oxidative stress markers.


2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Hazal Tuzcu ◽  
Ibrahim Aslan ◽  
Mutay Aslan

Effect of high-dose insulin analog initiation therapy was evaluated on lipid peroxidation and oxidative stress markers in type 2 diabetes mellitus (T2DM). Twenty-four T2DM patients with HbA1c levels above 10% despite ongoing therapy with sulphonylurea and metformin were selected. Former treatment regimen was continued for the first day followed by substitution of sulphonylurea therapy with different insulin analogs. Glycemic profiles were determined over 72 hours by Continuous Glucose Monitoring System (CGMS), and blood/urine samples were collected at 24 and 72 hours. Insulin analog plus metformin treatment significantly reduced glucose variability. Plasma and urine lipid peroxidation were markedly decreased following insulin analog plus metformin treatment. No correlation existed between glucose variability and levels of plasma and urine oxidative stress markers. Likewise, changes in mean blood glucose from baseline to end point showed no significant correlation with changes in markers of oxidative stress. On the contrary, decreased levels of oxidative stress markers following treatment with insulin analogs were significantly correlated with mean blood glucose levels. In conclusion, insulin plus metformin resulted in a significant reduction in oxidative stress markers compared with oral hypoglycemic agents alone. Data from this study suggests that insulin analogs irrespective of changes in blood glucose exert inhibitory effects on free radical formation.


Author(s):  
Manoj Kumar Velaga ◽  
Lucius K. Daughtry ◽  
Angelica C. Jones ◽  
Prabhakara Rao Yallapragada ◽  
Sharada Rajanna ◽  
...  

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