Anti-Convulsive Effect of Thiamine and Melatonin Combination in Mice; Involvement of Oxidative Stress

2021 ◽  
Vol 21 ◽  
Author(s):  
Ehsan Dehdashtian ◽  
Azam Hosseinzadeh ◽  
Karim Hemati ◽  
Mohammad Yahya Karimi ◽  
Iman Fatemi ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Seizure Control ◽  
Latency Period ◽  
Control Group ◽  
Seizure Duration ◽  
Minute Period ◽  
Chronic Disorder ◽  
Clonic Seizures ◽  
The Brain ◽  
Control Seizure

Background: Epilepsy, the second most frequent neurological disease, is a chronic disorder with a high lifetime prevalence. Therefore, various studies are needed to find new effective therapeutic agents to treat seizures or prevent its complications. In this study, we investigated the effects of thiamine, melatonin, and their combination on pentylenetetrazol (PTZ)-induced tonic-clonic seizures in mice. Methods: Male mice were randomly divided into six groups, including control, seizure control, diazepam, melatonin, thiamine, and melatonin and thiamine combination groups. Drugs were given orally in drinking water for 14 days. On the 15th day, the seizure was induced (except the control group) by intraperitoneal injection of PTZ. In all groups, the time between the injection the start of the seizure (latency) and the length of the seizure attack (duration) were measured in a 30-minute period. After measuring the latency and duration in all groups, mice were killed by CO2 Box, and their brains were dissected to be analyzed for malondialdehyde (MDA) level as a marker of oxidative stress. Results: The seizure duration was significantly lower in the groups of melatonin, thiamine, and thiamine and melatonin combination compared to the seizure control group. The latency times in these groups were significantly greater than the seizure control group. Moreover, MDA concentrations were lower in these groups compared to the seizure control group. Conclusion: Thiamine, melatonin and their combination can decrease the duration time of seizure and increase the latency period, which may result from inhibition of oxidative stress in the brain.

scholarly journals Effect of Captopril on Brain Oxidative Damage in Pentylenetetrazole-Induced Seizures in Mice

2019 ◽  
Vol 25 (3) ◽  
pp. 221-226
Author(s):  
Fereshteh Asgharzadeh ◽  
Mahmoud Hosseini ◽  
Rahimeh Bargi ◽  
Mohammad Soukhtanloo ◽  
Farimah Beheshti ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Oxidative Damage ◽  
Renin Angiotensin System ◽  
Control Group ◽  
Total Thiol ◽  
Oxidative Stress Status ◽  
Brain Oxidative Stress ◽  
Clonic Seizures ◽  
The Brain ◽  
Brain Tissues

Background: Frequent seizure is followed by overproduction of free radicals and brain oxidative stress. Renin angiotensin system (RAS) has some effects on central nervous system. We designed this research to challenge the effect of captopril as an angiotensin converting enzyme (ACE) inhibitor against brain oxidative stress in pentylenetetrazole (PTZ) -induced seizures in mice. Methods: The groups were including (1) Control (saline); (2) PTZ (100 mg/kg, i.p.), (3-5) PTZ- captopril (Capto) that received three doses of Capto 10, 50 and 100 mg/kg 30 min before PTZ injection. Latency time in the onset minimal clonic seizures (MCS) and generalized tonic-clonic seizures (GTCS) were recorded. The level of malondialdehyde (MDA) and total thiol, as well as superoxide dismutase (SOD) and catalase (CAT) activity in the hippocampus and cortex were measured. Results: All doses of captopril postponed the onset of MCS and GTCS. Accumulation of MDA in the brain tissues of PTZ group was higher than control group, while total thiol content and CAT activity were lower. Pretreatment with captopril (100 mg/kg) diminished MDA concentration compared with PTZ group. Captopril (50 and 100 mg/kg) also increased the level of total thiol groups versus PTZ group. Captopril injection (50 and 100 mg/kg) elevated the activity of SOD and CAT in the brain tissues. In addition captopril administration diminished mortality rate caused by PTZ. Conclusion: Findings demonstrated that convulsions caused by PTZ were followed by oxidative stress status in the brain tissues. Pretreatment with captopril attenuated the effect of PTZ on brain tissue oxidative damage.<br />

scholarly journals High-fat diet-induced obesity and impairment of brain neurotransmitter pool

2020 ◽  
Vol 11 (1) ◽  
pp. 147-160
Author(s):  
Ranyah Shaker M. Labban ◽  
Hanan Alfawaz ◽  
Ahmed T. Almnaizel ◽  
Wail M. Hassan ◽  
Ramesa Shafi Bhat ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Brain Tissue ◽  
High Fat Diet ◽  
Density Lipoprotein ◽  
Obese Group ◽  
Control Group ◽  
High Fat ◽  
Brain Neurotransmitter ◽  
The Brain ◽  
Lean Group

AbstractObesity and the brain are linked since the brain can control the weight of the body through its neurotransmitters. The aim of the present study was to investigate the effect of high-fat diet (HFD)-induced obesity on brain functioning through the measurement of brain glutamate, dopamine, and serotonin metabolic pools. In the present study, two groups of rats served as subjects. Group 1 was fed a normal diet and named as the lean group. Group 2 was fed an HFD for 4 weeks and named as the obese group. Markers of oxidative stress (malondialdehyde, glutathione, glutathione-s-transferase, and vitamin C), inflammatory cytokines (interleukin [IL]-6 and IL-12), and leptin along with a lipid profile (cholesterol, triglycerides, high-density lipoprotein, and low-density lipoprotein levels) were measured in the serum. Neurotransmitters dopamine, serotonin, and glutamate were measured in brain tissue. Fecal samples were collected for observing changes in gut flora. In brain tissue, significantly high levels of dopamine and glutamate as well as significantly low levels of serotonin were found in the obese group compared to those in the lean group (P > 0.001) and were discussed in relation to the biochemical profile in the serum. It was also noted that the HFD affected bacterial gut composition in comparison to the control group with gram-positive cocci dominance in the control group compared to obese. The results of the present study confirm that obesity is linked to inflammation, oxidative stress, dyslipidemic processes, and altered brain neurotransmitter levels that can cause obesity-related neuropsychiatric complications.

scholarly journals The Effect of Herniarin on Spatial Working Memory, Pain Threshold, and Oxidative Stress in Ischemic Hypoperfusion Model in Rats

2021 ◽  
Vol 7 (1) ◽  
pp. 42-50
Author(s):  
Zahra Nazari Barchestani ◽  
◽  
Maryam Rafieirad ◽  
Keyword(s):  
Oxidative Stress ◽  
Pain Threshold ◽  
Male Rats ◽  
Control Group ◽  
Tail Flick ◽  
Pain Thresholds ◽  
Ischemic Group ◽  
Significant Difference ◽  
The Brain ◽  
And Oxidative Stress

Background: Ischemia causes severe neuronal damage and induces oxidative stress, memory impairment, and reduces pain threshold. Herniarin is a powerful antioxidant. Objectives: This study aimed to evaluate the effect of herniarin on memory, pain, and oxidative stress in an ischemia model in male rats. Materials & Methods: In this study, 50 male rats were divided into 5 groups of control, sham, ischemic, and two other ischemic groups, which received herniarin at doses of 150 and 300 mg/kg by gavage for 14 days. Behavioral tests were performed by shuttle box, and Y-maze and pain tests were performed by Tail-Flick test. Then, the rats’ brains were extracted to evaluate lipid peroxidation and measure the levels of thiol and Glutathione Peroxidase (GPX) in the hippocampus and striatum tissues. The results were expressed as Mean±SEM and then analyzed using suitable statistical methods of ANOVA and least significant difference post-hoc test in SPSS V. 20. Results: Herniarin significantly increased the avoidance memory, spatial memory, and pain thresholds of ischemic rats at different concentrations (P<0.001). Besides, the amount of malondialdehyde (MDA) and thiol in the ischemic group increased significantly in comparison to the control group (P<0.001). Also, in the ischemic group, GPX (P<0.001) significantly decreased. Decreased MDA (P<0.001) and thiol (P<0.001) and increased GPX levels were observed with herniarin administration (P<0.01). Conclusion: According to this study’s results, herniarin can remove free radicals and oxidant substances from the brain. Thus, it improves memory and pain thresholds in the brain hypoperfusion ischemia model.

scholarly journals Antioxidant responses and plasma biochemical characteristics in the freshwater rainbow trout, Oncorhynchus mykiss, after acute exposure to the fungicide propiconazole

2011 ◽  
Vol 56 (No. 2) ◽  
pp. 61-69 ◽  
Author(s):  
Z.-H. Li ◽  
V. Zlabek ◽  
J. Velíšek ◽  
R. Grabic ◽  
J. Machová ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Control Group ◽  
Antioxidant Responses ◽  
Stress Indices ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Plasma Enzymes ◽  
Plasma Characteristics ◽  
The Brain

In this study, the toxic effects of PCZ, a triazole fungicide present in aquatic environment, were studied in rainbow trout, Oncorhynchus mykiss, by an acute toxicity test. Compared to the control group, fish exposed to PCZ (96-h-LC50, 5.04 mg/l) showed significantly higher (P &lt; 0.05) plasma NH3 and GLU concentration and the activities of plasma enzymes including CK, ALT, AST, LDH, but the TP content was not significantly different (P &gt; 0.05). The oxidative stress indices (levels of LPO and CP) of brain and muscle in the experimental group were higher compared to the control group, especially for a significant change (P &lt; 0.05) in the brain. SOD, CAT, GPx and GR activity in the brain of experimental groups was significantly lower (P &lt; 0.05), however, an opposite tendency was found out in muscle. In addition, there are significant correlations between TBARS and CAT, TBARS and GPx, CP, and CAT, GR, and GPx in the fish brain. Thus, PCZ exposure changed the oxidative stress indices and plasma characteristics, and these changes may be used as potential bioindicators of the exposure and effect of PCZ in the controlled experiment. The use in monitoring of PCZ exposure under natural field conditions is possible, but it needs further investigations.

Effect of progesterone on phosphamidon-induced impairment of memory and oxidative stress in rats

2011 ◽  
Vol 30 (10) ◽  
pp. 1626-1634 ◽  
Author(s):  
Amit K Sharma ◽  
Swapan K Bhattacharya ◽  
Naresh Khanna ◽  
Ashok K Tripathi ◽  
Tarun Arora ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Cognitive Function ◽  
Organophosphorus Pesticides ◽  
Thiobarbituric Acid ◽  
Treated Group ◽  
Control Group ◽  
Protein Thiols ◽  
Acute And Chronic Exposure ◽  
The Brain ◽  
And Oxidative Stress

Progesterone (a neurosteroid) is an important modulator of the nervous system functioning. Organophosphorus pesticides like phosphamidon have been shown to adversely affect memory and induce oxidative stress on both acute and chronic exposure. The present study was therefore designed to investigate the effects of progesterone (PROG) on phosphamidon-induced modulation of cognitive function and oxidative stress in rats. Cognitive function was assessed using step-down latency (SDL) on a passive avoidance apparatus and transfer latency (TL) on an elevated plus maze. Oxidative stress was assessed by examining the levels of thiobarbituric acid reactive species (TBARS) and non-protein thiols (NP-SH) in isolated homogenized whole brain samples. The results showed a significant reduction in SDL and prolongation of TL in the phosphamidon (1.74 mg/kg/d; p.o.) treated group at weeks 6 and 8 as compared to the control group. Two weeks treatment with PROG (15 mg/kg/d; i.p.) antagonized the effect of phosphamidon on SDL as well as TL. Phosphamidon alone produced a significant increase in the brain TBARS levels and decrease in the brain NP-SH levels. Treatment with PROG (15 mg/kg/d; i.p.) attenuated the effect of phosphamidon on oxidative stress. Together, the results showed that progesterone attenuated the cognitive dysfunction and increased oxidative stress induced by phosphamidon in the brain.

scholarly journals The effects of royal jelly on oxidative stress and toxicity in tissues induced by malathion, an organophosphate insecticide

2019 ◽  
Vol 70 (2) ◽  
pp. 1517
Author(s):  
L. AKSOY ◽  
Y. ALPER
Keyword(s):  
Oxidative Stress ◽  
Royal Jelly ◽  
Biological Activities ◽  
Control Group ◽  
Organophosphate Insecticide ◽  
Liver And Kidney ◽  
Experimental Process ◽  
And Control ◽  
The Brain ◽  
Brain Tissues

Royal jelly is a bee product frequently used in pharmaceutical, food and cosmetic industries due to its biological activities. The present study aimed to determine the effects of royal jelly on malathion-induced toxicity and biochemical changes. The rats that were used as experimental animals in the study were divided into 6 groups. Control group rats were administered nothing, while carrier chemicals (1% DMSO) were administered to sham group rats. Malathion group (MAL) rats were injected with 0.8 g/kg malathion in DMSO subcutaneously. Saline solution that included 100 mg/kg royal jelly was administered with gavage to the rats in the royal jelly group (RJ). 100 mg/kg royal jelly was administered to RJ+MAL group rats via gavage 1 hour before the injection of 0.8 g/kg malathion. 100 mg/kg royal jelly was administered to MAL+RJ group rats via gavage 1 hour after the injection of 0.8 g/kg malathion. After the experimental process (24 hours), blood samples were taken from the rats in each group under anesthesia (ketamine+xylazine). MDA, NO, GSH, GPx (glutathione peroxidase), CAT, SOD and AChE activities were determined in blood, liver, kidney and brain tissues. It was found that erythrocyte, liver, kidney and brain MDA (malondialdehyde) concentrations in MAL groups were statistically significantly higher when compared to the other groups (p<0.05). It was observed that GSH (glutathione) concentrations increased in the brain, while they decreased in erythrocyte, liver and kidney in the MAL group when compared to the control and sham groups. CAT (catalase) concentration significantly decreased in erythrocyte, liver, kidney and brain tissues in the MAL group when compared to the control and sham groups (p<0.05). SOD (superoxide dismutase) concentration in the MAL group decreased significantly (p<0.05) when compared to other groups, while SOD concentration increased significantly in the therapy and prevention groups (p<0.05) when compared to the others. It was found that serum acetylcholinesterase (AChE) concentration was significantly lower in the MAL group when compared to sham and control groups (p<0.05). Thus, it was concluded that malathion led to lipid peroxidation and oxidative stress in MDA and NO (nitric oxide) levels and toxicity in AChE activities. It was also determined that royal jelly could be effective against oxidative damage and toxicity. The findings suggested that the antioxidant effect of royal jelly could support the treatment of malathion, which is one of the insecticides that contain organophosphate and could lead to oxidative stress. It is considered that the prophylactic characteristics of royal jelly was more effective on malathion toxicity when compared to therapatic properties.

scholarly journals 2-Hydroxyglutaric aciduria as a cause for seizure-like episodes in a domestic shorthair cat

2019 ◽  
Vol 5 (1) ◽  
pp. 205511691985389
Author(s):  
George J Nye ◽  
Alison C Major ◽  
Francois X Liebel
Keyword(s):  
Traffic Accident ◽  
Grey Matter ◽  
Seizure Control ◽  
Road Traffic ◽  
Seizure Freedom ◽  
Case Summary ◽  
Clonic Seizures ◽  
Urine Organic Acids ◽  
The Brain ◽  
Hydroxyglutaric Acid

Case summary A 14-month-old male castrated domestic shorthair cat, which 2 months prior to presentation underwent hindlimb amputation following a road traffic accident, presented for investigation of four suspected generalised tonic–clonic seizures. Neurological examination was unremarkable. Routine blood work (haematology, biochemistry, ammonia, preprandial bile acids) was unremarkable. MRI of the brain identified marked symmetrical T2-weighted hyperintensities of the cerebellum and brainstem, mainly affecting the grey matter. Urine amino acid and mucopolysaccharide levels were unremarkable. Urine organic acids on two separate samples, 35 days apart, identified highly increased excretion of 2-hydroxyglutaric acid, indicative of 2-hydroxyglutaric aciduria. The cat was started on anticonvulsant therapy with phenobarbitone, which, at the point of writing, has improved seizure control, although the cat has not achieved seizure freedom. Relevance and novel information This case report describes the first reported case of a 2-hydroxyglutaric aciduria, an inherited neurometabolic disorder, as a cause for seizure-like episodes in a cat.

scholarly journals Antidepressant–like effects of fish, krill oils and Vit B12 against exposure to stress environment in mice models: current status and pilot study

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Parastoo Mojtahed Zadeh-Ardabili ◽  
Sima Kianpour Rad ◽  
Soheila Kianpour Rad ◽  
Abolfazl Movafagh
Keyword(s):  
Oxidative Stress ◽  
Tail Suspension Test ◽  
Current Status ◽  
Antidepressant Effect ◽  
Antioxidant Systems ◽  
Control Group ◽  
Sod Activity ◽  
Stress Markers ◽  
Swimming Test ◽  
The Brain

AbstractOxidative stress has significant role in pathophysiology of any kind of depression through actions of free radicals, non-radical molecules, and unbalancing antioxidant systems in body. In the current study, antidepressant responses of fish oil (FO), Neptune krill oil (NKO), vitamin B12 (Vit B12), and also imipramine (IMP) as the reference were studied. Natural light was employed to induce stress in the animals followed by oral administration of the drugs for 14 days. The antidepressant effect was assessed by tail suspension test (TST) and forced swimming test (FST), antioxidant enzymes and oxidative stress markers were then measured in the brain tissue of the animals. The administration of FO and NKO could significantly reduce the immobility of the animals; while, increasing climbing and swimming time compared to the normal saline in CUS-control group in TST and FST, similarly to IMP but not with Vit B12. Vit B12 could not effect on SOD activity and H2O2 level, but, cause decrease of the malondialdihydric (MDA) level and CAT activity, as well as increased the GPx and GSH activities. The rest treatments led to decrease of MDA, H2O2 levels and CAT activity and increase of GPx, SOD, GSH activities.

scholarly journals Protective Effects of Carvacrol against Oxidative Stress Induced by Chronic Stress in Rat’s Brain, Liver, and Kidney

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Saeed Samarghandian ◽  
Tahereh Farkhondeh ◽  
Fariborz Samini ◽  
Abasalt Borji
Keyword(s):  
Oxidative Stress ◽  
Restraint Stress ◽  
Reduced Glutathione ◽  
Control Group ◽  
Protective Effects ◽  
Chronic Restraint Stress ◽  
Oxidative Stress Parameters ◽  
Liver And Kidney ◽  
Stress Damage ◽  
The Brain

Restraint stress may be associated with elevated free radicals, and thus, chronic exposure to oxidative stress may cause tissue damage. Several studies have reported that carvacrol (CAR) has a protective effect against oxidative stress. The present study was designed to investigate the protective effects of CAR on restraint stress induced oxidative stress damage in the brain, liver, and kidney. For chronic restraint stress, rats were kept in the restrainers for 6 h every day, for 21 consecutive days. The animals received systemic administrations of CAR daily for 21 days. To evaluate the changes of the oxidative stress parameters following restraint stress, the levels of malondialdehyde (MDA), reduced glutathione (GSH), superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GR), and catalase (CAT) activities were measured in the brain, liver, and kidney. In the stressed animals that received vehicle, the MDA level was significantly higher (P<0.001) and the levels of GSH and antioxidant enzymes were significantly lower than the nonstressed animals (P<0.001). CAR ameliorated the changes in the stressed animals as compared with the control group (P<0.001). This study indicates that CAR can prevent restraint stress induced oxidative damage.

scholarly journals Toxicity of mercury on the brain: ability of extract of Pistacia atlantica regulated effect

2020 ◽  
Vol 10 (4-s) ◽  
pp. 17-24
Author(s):  
Benahmed Fatiha ◽  
Hayet Fatima Zohra Belhouari ◽  
Radjaa Bounoura ◽  
Elazhari Mehrab ◽  
Omar Kharoubi
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Neuroprotective Effect ◽  
Wistar Rat ◽  
Antioxidant Defense System ◽  
Control Group ◽  
Mercury Chloride ◽  
Male Adult ◽  
Pistacia Atlantica ◽  
The Brain

Objective: The purpose of this study was to evaluate the neuroprotective effect of 150 mg / kg extract of the plant Pistacia atlantica against mercury-induced oxidative stress Methods: Hg was administered intraperitoneally (2,5 mg/kg body weight, one time a week), and P. atlantica and were given orally by gavage at a daily dose (150 mg/kg body weight) to rats for 32 days. 24 male adult Albinos Wistar rats were divided into four groups: group 1 Control, group 2 (HgCl2) group 3 (Hg + P. atlantica) and group 4 (P. atlantica). Paramatrical tests of oxidative stress and histological sections of the cerebral parenchyma. Results: Our results showed that the intraperitoneal injection of mercury chloride HgCl2 causes deleterious effects in the brain resulting in: a failure of redox status by disrupting the antioxidant defense system by a significant decrease in the activity of catalase glutathione peroxidase, glutathione-s-transferase and superoxide dismutase acetylcholinesterase and increase of the activity of the enzyme lactate dehydrogenase. The levels of lipid peroxidation markers were high in TBARS intoxicated rats with protein oxidation increased in the brain intoxicated by. The continuous use of mercury is also at the origin, in brain tissue However, supplementation of P. atlantica extract with mercury-treated rats attenuated some of the harmful and toxic effects of this metal. This clearly demonstrates the protective roles of this plant Keywords: mercury, Pistacia atlantica, Wistar rat, brain, antioxidant, neurotoxicity.

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