scholarly journals Neurotoxic Effect of Fipronil in Male Wistar Rats: Ameliorative Effect of L-Arginine and L-Carnitine

Biology ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 682
Author(s):  
Yasmina K. Mahmoud ◽  
Ahmed A. Ali ◽  
Heba M. A. Abdelrazek ◽  
Tahany Saleh Aldayel ◽  
Mohamed M. Abdel-Daim ◽  
...  
Keyword(s):  
Calcium Binding ◽  
Histopathological Examination ◽  
Memory Performance ◽  
Elevated Serum ◽  
Corticosterone Level ◽  
Male Rats ◽  
Spatial Learning And Memory ◽  
Serum Corticosterone ◽  
Group I ◽  
Ameliorative Effect

The ameliorative effect of L-arginine (LA) and L-carnitine (LC) against fipronil (FPN)-induced neurotoxicity was explored. In this case, 36 adult male rats were randomly divided into six groups: group I received distilled water, group II received 500 mg/kg LA, group III received 100 mg/kg LC, group IV received 4.85 mg/kg FPN, group V received 4.85 mg/kg FPN and 500 mg/kg LA and group VI received 4.85 mg/kg FPN and 100 mg/kg LC for 6 weeks. Cognitive performance was assessed using Barnes maze (BM). Serum corticosterone, brain total antioxidant capacity (TAC), malondialdehyde (MDA) and dopamine were measured. Histopathology and immunohistochemistry of ionized calcium-binding adaptor (Iba-1), doublecortin (DCX) and serotonin (S-2A) receptors were performed. Fipronil induced noticeable deterioration in spatial learning and memory performance. In addition, FPN significantly (p < 0.05) diminished brain antioxidant defense system and dopamine coincide with elevated serum corticosterone level. Histopathological examination revealed degenerative and necrotic changes. Furthermore, Iba-1 and DCX were significantly expressed in cortex and hippocampus whereas S-2A receptors were significantly lowered in FPN group. However, administration of LA or LC alleviated FPN-induced deteriorations. In conclusion, LA and LC could be prospective candidates for mitigation of FPN-induced neurotoxicity via their antioxidant, anti-inflammatory and neuropotentiating effects.

scholarly journals Lithium modulates the chronic stress-induced effect on blood glucose level of male rats

2010 ◽  
Vol 62 (2) ◽  
pp. 289-295 ◽  
Author(s):  
Natasa Popovic ◽  
Snezana Pajovic
Keyword(s):  
Blood Glucose ◽  
Blood Glucose Level ◽  
Chronic Stress ◽  
Glucose Level ◽  
Restraint Stress ◽  
Elevated Serum ◽  
Corticosterone Level ◽  
Male Rats ◽  
Chronic Restraint Stress ◽  
Serum Corticosterone

In the present study we examined gross changes in the mass of whole adrenal glands and that of the adrenal cortex, as well as the serum corticosterone and glucose level of mature male Wistar rats subjected to three different treatments: animals subjected to chronic restraint-stress, animals injected with lithium (Li) and chronically stressed rats treated with Li. Under all three conditions we observed hypertrophy of whole adrenals, as well as the adrenal cortices. Chronic restraint stress, solely or in combination with Li treatment, significantly elevated the corticosterone level, but did not change the blood glucose level. Animals treated only with Li exhibited an elevated serum corticosterone level and blood glucose level. The aim of our study was to investigate the modulation of the chronic stress-induced effect on the blood glucose level by lithium, as a possible mechanism of avoiding the damage caused by chronic stress. Our results showed that lithium is an agent of choice which may help to reduce stress-elevated corticosterone and replenish exhausted glucose storages in an organism.

scholarly journals Naloxone Ameliorates Spatial Memory Deficits and Hyperthermia Induced by a Neurotoxic Methamphetamine Regimen in Male Rats

2019 ◽  
Vol 8 ◽  
pp. 1182 ◽  
Author(s):  
Solmaz Khalifeh ◽  
Mehdi Khodamoradi ◽  
Vahid Hajali ◽  
Hamed Ghazvini ◽  
Lelia Eliasy ◽  
...  
Keyword(s):  
Adverse Effects ◽  
Spatial Memory ◽  
Learning And Memory ◽  
Spatial Learning ◽  
Memory Impairment ◽  
Memory Performance ◽  
Poor Performance ◽  
Male Rats ◽  
Spatial Learning And Memory ◽  
Opiate Antagonist

Background: Methamphetamine (METH) as a synthetic psychostimulant is being increasingly recognized as a worldwide problem, which may induce memory impairment. On the other hand, it is well established that naloxone, an opiate antagonist, has some beneficial effects on learning and memory. The present research aimed at evaluating naloxone effects on spatial learning and memory impairment triggered by a neurotoxic regimen of METH in male rats. Materials and Methods: The animals received the subcutaneous (sc) regimen of METH (4×6 mg/kg at 2-h intervals), intraperitoneal (ip) naloxone (4×1 mg/kg at 2-h intervals), or normal saline at four events. The Nal-METH group of rats received four naloxone injections (1 mg/kg, ip) 30 min before each METH injection (6 mg/kg, sc) at 2-h intervals. Seven days later, they were evaluated for spatial learning and memory in the Morris Water Maze (MWM) task. Result: METH regimen induced hyperthermia, as well as a poor performance, in the acquisition and retention phases of the task, indicating spatial learning and memory impairment compared to the controls. Naloxone administration (1 mg/kg, ip) before each METH injection led to significant attenuations of both hyperthermia and METH adverse effects on the rat performance in the MWM task. Conclusion: The results revealed that pretreatment with the opiate antagonist naloxone could prevent METH adverse effects on body temperature and memory performance. It seems that the opioidergic system and hyperthermia may, at least partially, be involved in METH effects on spatial memory. [GMJ. 2019;8:e1182]

scholarly journals Ameliorative Effect of Methanol Extract of Hymenocardia acida Leaves on Gentamicin-Induced Renal Toxicity in Rats

2018 ◽  
pp. 1-9
Author(s):  
Nweje-Anyalowu Paul Chukwuemeka ◽  
Idakwoji Precious Adejoh ◽  
Iserhienrhien Lucky Osafanme ◽  
Anosike Joy Chizoba
Keyword(s):  
Methanol Extract ◽  
Histopathological Examination ◽  
Elevated Serum ◽  
Chloride Ion ◽  
Chloride Ions ◽  
Potassium Ion ◽  
Albino Rats ◽  
Histopathological Analysis ◽  
Serum Urea ◽  
Group I

Aim: This study evaluated the nephroprotective effect of methanol extract of Hymenocardia acida leaves in rat model of gentamicin induced renal damage. Materials and Methods: Twenty- four (24) Wistar albino rats of either sex weighing 150- 200g were divided into 4 groups of 6 animals each; Group I served as the control and received normal saline, Group II- IV received gentamicin (40 mg/kg, i.p), Groups III and IV also received 200 and 400 mg/kg body wt., p.o methanol extract of Hymenocardia acida leaves respectively for 15 days. Body weight measurement, serum urea, creatinine, electrolytes analyses and histopathological examination of kidney were carried out. Results: Gentamicin treatment caused nephrotoxicity as evidenced by marked elevation in Serum urea, creatinine, decreased sodium and chloride ions, elevated serum level of potassium ion and pathological signs such as congestion, focal areas of inflammation, tubular necrosis, and glomerular atrophy. Administration of the extract at doses of 200 and 400 mg/kg/ body wt significantly (p< 0.05) decreased Creatinine and urea levels, significantly (p< 0.05) increased sodium and chloride ion and significantly (p< 0.05)  decreased potassium ion level when compared to the gentamicin- alone- treated group. Histopathological analysis also revealed a gradual reversal of the pathological features caused by gentamicin toxicity. Conclusion: It was concluded that the extract possesses nephroprotective potential.

scholarly journals Selenium supplementation ameliorated paraquat-induced haemotoxicity in male rats

2020 ◽  
pp. 17-21
Keyword(s):  
Group Iv ◽  
Selenium Supplementation ◽  
Male Rats ◽  
Haematological Parameters ◽  
Group V ◽  
Once Daily ◽  
Group Iii ◽  
Group I ◽  
Ameliorative Effect ◽  
Haematological Changes

Introduction: The study was aimed at determining the haematological changes induced by 7 days paraquat exposure in rats and the ameliorative effect of selenium. Methods: Fifty-two adult male rats weighing between 150g and 200g were used for the study. The animals re randomly divided into five (5) groups of eight (8) rats each viz: Group I (DW) was administered distilled water only (2 ml/kg), group II (P1) was paraquat 15 mg/kg, group III (P1 + S) was paraquat (15 mg/kg) and selenium (0.3 mg/kg) an hour later, group IV (P2) was paraquat 30 mg/kg, while group V (P2 + S) was paraquat (30 mg/kg) and selenium (0.3 mg/kg) an hour later. Treatments were administered per os by gavage once daily for a week. Blood samples were analysed on the last day of administration. Results: The results of the study revealed that there were no significant differences (p >0.05) in haematological parameters in paraquat-induced toxicity in rats. Significance: The result of this research has shown that 7 days paraquat administration at 15 and 30 mg/kg has no detrimental effect on haematological parameters in rats, thus selenium supplementation cannot be justified to ameliorate its effect.

scholarly journals HEPATOPROTECTIVE EFFECT OF N-MIRACLE (POLYHERBAL FORMULATION) AGAINST ETHANOL INDUCED TOXICITY IN MALE ALBINO RATS

2020 ◽  
pp. 47-51
Author(s):  
MEENATCHI SUNDARAM ANGAPPAN
Keyword(s):  
Antioxidant Enzymes ◽  
Histopathological Examination ◽  
Treated Group ◽  
Hepatoprotective Effect ◽  
Hepatic Regeneration ◽  
Albino Rats ◽  
Ether Anesthesia ◽  
Polyherbal Formulation ◽  
Group I ◽  
Ameliorative Effect

Objective: The aim of this current study is to investigate the hepatoprotective efficacy of N-Miracle (a polyherbal formulation) against ethanol-induced toxicity in male albino rats. Methods: Male Wistar albino rats weighing 150-200 g were used for the study. A total of 30 male albino rats were selected, divided into five groups. Ethanol-induced liver damage was done on Group III, IV, and V. Group I and Group II served as a normal and drug (N-Miracle) control. After the treatment period, the rats were anaesthetized by light ether anesthesia in a lethal chamber. Hepatic biomarkers, antioxidant enzymes, histopathological examination are carried out to document the hepatoprotective effect of N-Miracle (Polyherbal formulation). Results: The results of the present study demonstrated a significant (p<0.05) increase in the levels of Aspartate Aminotransaminase (AST), Alanine Aminotransaminase (ALT) and Alkaline Phosphatase (ALP) in ethanol-induced rats as compared to normal and drug control Groups. The level of total protein and albumin were significantly (p<0.05) decreased in ethanol-treated rats. The toxic impact of ethanol was found to be restored in rats treated with N-Miracle (Polyherbal formulation). The present study also exhibited the enzymatic antioxidant efficacy of N-Miracle (Polyherbal formulation) against ethanol-induced toxicity in rats by increasing the antioxidant enzymes such as superoxide dismutase, catalase, glutathione peroxidase and decreasing the activity of Glutathione-S-transferase in the liver. The findings are also correlated with histopathological examination of N-Miracle treated group, which shows hepatic regeneration and decrease in degradation of hepatocytes. Conclusion: This study could provide a possible explanation to hepatotoxicity resulting from exposure to ethanol. The findings of the present study revealed the ameliorative effect of N-Miracle (Polyherbal formulation) against ethanol-induced hepatotoxicity by improving the liver function, increasing the levels of antioxidant enzymes and restoring the morphological features of the liver.

scholarly journals Non Concurrent Multimodal Stress Decreases Sperm Quality and Motor Activity in Male Wister Albino Rats

2019 ◽  
Vol 12 (3) ◽  
pp. 1505-1517 ◽  
Author(s):  
Jyothi Ashok Kumar ◽  
Thotakura Balaji ◽  
C. Swathi Priyadarshini ◽  
Manickam Subramanian ◽  
Indumathi Sundaramurthi
Keyword(s):  
Body Weight ◽  
Muscle Strength ◽  
Motor Activity ◽  
Sperm Quality ◽  
Elevated Serum ◽  
Male Reproduction ◽  
Male Rats ◽  
Albino Rats ◽  
Serum Corticosterone ◽  
The Impact

Every human being is exposed to the stress in one or the other form in the day to day life. Most of the existing studies on the impact of stress on the male reproduction were assessed by using single stressor, which may lead habituation to that stressor. The present study intends to estimate the consequence of stress on motor activity, sperm quality and histopathology of the testis in stress-induced male rats using multimodal stress one per day. Four weeks old Wister albino rats were randomly split into 4 groups and induced multimodal stress at different ages of life span. After induction of stress serum corticosterone levels, muscle strength and coordination, quality of sperm and histopathology of testes were estimated. Elevated serum corticosterone levels and body weight, reduced muscle strength, coordination. Sperm concentration and motility was significantly reduced and increased morphologically abnormal sperm in stress induced animals but sperm viability was not altered much. Histopathology of testes in stress received animals showed decreased tubular diameter and increased intertubular space. Multimodal stress caused elevated serum corticosterone and body weight, decreased motor activity, sperm quality and degenerative changes in the testis

scholarly journals Ginkgo biloba modulates hippocampal BDNF expression in a rat model of chronic restraint stress-induced depression

2020 ◽  
Vol 24 (4) ◽  
pp. 285-297
Author(s):  
Seyed Abdolmajid Ayatollahi ◽  
◽  
Shahrokh Khoshsirat ◽  
Ali Asghar Peyvandi ◽  
Omidvar Rezaei ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Protein Expression ◽  
Ginkgo Biloba ◽  
Restraint Stress ◽  
Corticosterone Level ◽  
The Body ◽  
Male Rats ◽  
Bdnf Expression ◽  
Serum Corticosterone ◽  
Repeated Restraint Stress

Introduction: Mood disorders such as depression and anxiety disorders have been affecting a relatively high proportion of the world's population. Neuroplasticity hypothesis of depression proposes that lack of brain-derived neurotrophic factor (BDNF) can cause structural changes in the brain. The extract of Ginkgo biloba (Gb) leaves can restore much of the damage in the nervous system. We examined the antidepressant role of Gb extract (EGb 761) on BDNF expression modulation in the hippocampus of rats subjected to repeated restraint stress (RRS). Methods: Adult male rats were randomly divided into 10 groups: control, control-vehicle treated, stress, stress-vehicle treated, as well as three control and three experimental groups pretreated with EGb (15, 30, 60mg/kg, IP daily) for 21 days. They underwent restraint stress on a daily basis, 6 hours for 21 consecutive days. Weight changes, locomotor activity and forced swim test (FST) were employed to assess depressive-like symptoms. The serum corticosterone level was also measured by ELISA. Hippocampal BDNF DNA methylation and protein expression were assayed by methylation sensitive restriction enzymes (Real Time PCR) and Western-blotting respectively in all groups. Results: Pre-treatment with 30 and 60 mg/kg/day of Gb extract significantly attenuated depressive-like effects in the body weight, FST and serum corticosterone level in RSS rats compared to control groups. Further, it inhibited chronic stress-induced alterations in the hippocampal BDNF DNA methylation and protein expression. Conclusion: These findings suggest that Gb can induce an antidepressant role through its modulation effect on the hippocampal BDNF expression.

scholarly journals Ameliorative effect of certolizumab on experimentally induced acute necrotic pancreatitis in rats

2019 ◽  
Vol 65 (2) ◽  
pp. 204-210
Author(s):  
Mehmet Ali Kosekli ◽  
Özkan Herek ◽  
Özlem Ozmen ◽  
Sima Sahinduran
Keyword(s):  
Acute Pancreatitis ◽  
Serum Amylase ◽  
Male Rats ◽  
Control Group ◽  
Group Iii ◽  
Group I ◽  
Necrotic Pancreatitis ◽  
Ameliorative Effect ◽  
Factor Α ◽  
Experimentally Induced

SUMMARY OBJECTIVE: The effects of Certolizumab, a pegylated monoclonal antibody to tumor necrosis factor α, on experimentally induced acute pancreatitis (AP) were examined. METHODS: Thirty-six Wistar Albino male rats were randomly divided into four groups. Group I was the control group and no medication administered to this group. Group II was the Certolizumab group, and 100 ml/kg serum physiologic administered into the biliopancreatic duct and a single dose of 10 μg Certolizumab was simultaneously administered intraperitoneally. Acute pancreatitis was induced with a retrograde injection of 3% Na taurocholate into the common biliopancreatic duct in the study (Group III) and treatment (Groups IV) groups. Rats were sacrificed 72 hours later. Serum amylase, lipase, lactate dehydrogenase activities, along with pancreatic histopathology, were examined. RESULTS: Certolizumab treatment significantly decreased serum amylase, lipase, and LDH levels; histopathologically edema, hemorrhage, parenchymal necrosis, fat necrosis, and infiltration scores; immunohistochemically MDA, MPO, TNF-α and Caspase-3 activity. CONCLUSION: The results support the idea that certolizumab might be beneficial for the severity of AP.

Ameliorative Effect of Cardamom Aqueous Extract on Doxorubicin-Induced Cardiotoxicity in Rats

2018 ◽  
Vol 206 (1-2) ◽  
pp. 62-72 ◽  
Author(s):  
Maha Abu Gazia ◽  
Mohammed Abu El-Magd
Keyword(s):  
Oxidative Stress ◽  
Elevated Serum ◽  
Myocardial Damage ◽  
Serum Levels ◽  
Control Group ◽  
Albino Rats ◽  
Loss Of Function ◽  
Group I ◽  
Ameliorative Effect ◽  
Fiber Deposition

This study was conducted to evaluate the potential cardioprotective effect of cardamom (CAR) against myocardial injuries induced by doxorubicin (DOX) in rats through investigation of histological alterations and the associated oxidative stress, apoptosis, inflammation, and angiogenesis. This study included 30 adult male albino rats that were randomized to 3 groups (n = 10/group): group I (control), group II (DOX) rats injected with DOX (2.5 mg/kg body weight [BW] i.p.) every other day for 2 weeks, and group III (CAR+DOX) received CAR extract (200 mg/kg BW) orally for 3 weeks, and 1 week later (starting from the 2nd week) they were injected with DOX (2.5 mg/kg BW i.p.) every other day for 2 weeks. Rats treated with DOX alone exhibited notable myocardial damage (discontinuity and disorganization of cardiac muscle fibers, mononuclear cell infiltration, and apparent increases in collagen fiber deposition) accompanied by loss of function (revealed by elevated serum levels of lactate dehydrogenase, creatine kinase, and cardiac troponin), induction of oxidative stress (indicated by higher levels of nitric oxide and malon­dialdehyde, and lower levels of superoxide dismutase, catalase, and glutathione peroxidase), apoptosis (evidenced by high caspase 3 activity and immunostaining), and inflammation (marked by high cardiac NFκB level). However, administration of CAR not only ameliorated all deleterious effects of DOX but also induced angiogenesis, as indicated by a significant increase in VEGF immunoreactivity. These data indicate that CAR could relieve DOX-induced cardiotoxicity, at least in part, via reductions in oxidative stress, apoptosis, and inflammation and increased tissue regeneration via induction of angiogenesis. Therefore, CAR could be a promising cytoprotective agent against DOX cardiotoxicity.

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