Ascorbic acid improves extrapyramidal syndromes and corpus striatal degeneration induced by dopamine-2 receptor inhibition in Wistar rats

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Sirajo U. Mujittapha ◽  
Murtala Kauthar ◽  
Ishola O. Azeez ◽  
John C. Oyem
Keyword(s):  
Ascorbic Acid ◽  
Normal Saline ◽  
Wistar Rats ◽  
Corpus Striatum ◽  
Extrapyramidal Symptoms ◽  
Motor Deficit ◽  
Cylinder Test ◽  
Extrapyramidal Syndromes ◽  
Dopamine 2 Receptor ◽  
Inhibition Group

AbstractObjectivesThe prolonged uses of fourth-generation antipsychotics have been implicated in inducing extrapyramidal syndromes characterized by the motor deficit. This was attributed to the loss of dopamine-2 receptor (D2R) signaling. However, ascorbic acid (SVCT2R stimulation) in the brain is proposed to modulate D2R activity. We, therefore, investigated the beneficial roles of ascorbic acid in improving the extrapyramidal symptoms seen in D2R loss.MethodsTwenty adult male Wistar rats of average weight 200 g were distributed randomly into four groups. The control (NS) received normal saline for 28 days, Untreated D2R inhibition group (−D2R) received normal saline for seven days and then subsequently received chlorpromazine for 21 days, D2R inhibition group treated with ascorbic acid (−D2R+SVCT2R) received chlorpromazine for 21 days and was subsequently treated with ascorbate for seven days while the withdrawal group (WG) received chlorpromazine for 21 days and subsequently received normal saline for seven days. Motor deficits were assessed using a rotarod and cylinder test. The corpus striatum was harvested, processed, and stained using H&E and Nissl stains. Cellular density was analyzed using Image J software 1.8.0.ResultsMotor deficit was observed in −D2R animals administered chlorpromazine with less improvement in WG compared to control (p<0.05) in both rotarod and cylinder test. Ascorbic acid (SVCT2R stimulation) significantly (p<0.001) improved the latency of fall and climbing attempts observed in −D2R animals. The density of basophilic trigoid bodies was significantly (p<0.001) restored in −D2R+SVCT2R group, suggesting recovery of neural activity in the corpus striatum. Moreover, the hallmarks of neuronal degeneration were less expressed in the ascorbic acid treatment groups.ConclusionsAscorbic acid putatively ameliorates extrapyramidal symptoms observed in D2R blockage by chlorpromazine in Wistar rats.

Determination of the L-ascorbic acid requirements in Wistar osteogenic disorder Shionogi rats for prolonged carcinogenesis experiments

1996 ◽  
Vol 30 (4) ◽  
pp. 337-346 ◽  
Author(s):  
S. W. Y. Chan ◽  
P. C. Reade
Keyword(s):  
Animal Model ◽  
Ascorbic Acid ◽  
Drinking Water ◽  
Normal Level ◽  
Physical Condition ◽  
Wistar Rats ◽  
Clinical Signs ◽  
Supplement Group ◽  
Palatal Mucosa

Wistar Shionogi rats of the ( od/od) substrain with the osteogenic disorder are unable to synthesize L-ascorbic acid ( L-AA) and appear to be an appropriate animal model for studying the effect of L-AA in carcinogenesis. To determine the minimal L-AA requirements of these animals for prolonged survival in a satisfactory physical condition during experimentation, four concentrations of L-AA (0.33 g/l, 0.67 g/l, 1.67 g/l and 3.33 g/l) were administered via drinking water to four groups of animals ( n=2). Their water intake per cage was recorded three times weekly and the plasma L-AA levels were determined at the start, after 2, 4, 8 and 12 weeks and at the termination of the experiment. To simulate the procedures to be undertaken in oral mucosal carcinogenesis experiments, the animals were gently restrained and a designated amount of sterile NaCl was applied to the palatal mucosa three times a week for 26 weeks. The L-AA supplement group with the lowest concentration (0.33 g/l L-AA) achieved mean plasma levels of 7 ± 1.38 μM, approximately one-eighth that of the normal level (mean plasma L-AA level in outbred Wistar rats was found to be 58 ± 3 μM) whilst those in the higher supplement group (3.33 g/l L-AA) achieved a mean of 18 ± 1.25 μM. All of the animals employed in the present study survived for 26 weeks and showed no clinical signs of L-AA deficiency during this period.

scholarly journals Histomorphological effect of ascorbic acid on mercury chloride-induced changes on the cerebellum of adult wistar rats

2014 ◽  
Vol 31 (04) ◽  
pp. 219-224 ◽  
Author(s):  
A. Ibegbu ◽  
A. Animoku Abdulrazaq ◽  
Ayuba Micheal ◽  
Brosu Daniel ◽  
A. Adamu Sadeeq ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Cerebellar Cortex ◽  
Wistar Rats ◽  
Oral Route ◽  
Mercury Chloride ◽  
Average Weight ◽  
The Central Nervous System ◽  
Living Organisms ◽  
Induced Changes ◽  
Acid Administration

Abstract Introduction. Mercury is one of the most hazardous environmental contaminants to living organisms and the central nervous system has been shown to be the main target. Objective. The present work was aimed at evaluating the effect of ascorbic acid on mercury chloride-induced changes on the cerebellar cortex of adult Wistar rats. Material and method. Thirty Wistar rats of average weight of 200g and were randomly divided into 6 groups of 5 rats each. The animals in Group 1 (control) were administered with distilled water, Groups 2 and 3 were administered with 52mg/kg and 26.25mg/kg body weight of HgCl respectively while Groups 4 and 5 were administered with 52mg/kg of HgCl and 5mg/kg of ascorbic acid and 26.25gm/kg of HgCl and 5mg/kg of ascorbic acid respectively, while Group 6 was administered with 5mg/kg of ascorbic acid. The administration was through oral route, daily for 3 weeks. Results. The result of the biochemical parameters showed a significant increase (P < 0.05) on the mean SOD and LPO values after the administration of mercury chloride and Ascorbic acid. Histological observation of the cerebellar cortex, showed normal histo-morphology in Groups 1 and 6 while, the cerebellum in Groups 2, 3, 4 and 5 showed some degenerative, necrotic and cellular changes. Conclusion. However, ascorbic acid administration has shown to ameliorate the induced degenerative changes in the cerebellum caused by mercury chloride toxicity in Wistar rats.

Evaluation of oxidative stress and its modulation by L-Arginine and L-Ascorbic acid in repetitive restraint stress model in Wistar rats

2020 ◽  
Vol 17 ◽  
pp. 100172
Author(s):  
Giridhari Pal ◽  
Tapan Behl ◽  
Vishwajeet Rohil ◽  
Mimansa Khandelwal ◽  
Garima Gupta ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Ascorbic Acid ◽  
Restraint Stress ◽  
Wistar Rats ◽  
Stress Model

scholarly journals Local treatment with ascorbic acid accelerates recovery of post-sutured Achilles tendon in male Wistar rats

2019 ◽  
Vol 52 (9) ◽  
Author(s):  
M. Souza ◽  
S.A.S. Moraes ◽  
D.R. de Paula ◽  
A.A. Maciel ◽  
E.J.O. Batista ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Achilles Tendon ◽  
Wistar Rats ◽  
Local Treatment ◽  
Male Wistar Rats

scholarly journals Ascorbic acid improves thrombotic function of platelets during living donor liver transplantation by modulating the function of the E3 ubiquitin ligases c-Cbl and Cbl-b

2019 ◽  
Vol 47 (5) ◽  
pp. 1856-1867
Author(s):  
Ji Hye Kwon ◽  
Doyeon Kim ◽  
Hyojin Cho ◽  
Byung Seop Shin
Keyword(s):  
Liver Transplantation ◽  
Ascorbic Acid ◽  
Normal Saline ◽  
Living Donor ◽  
Living Donor Liver Transplantation ◽  
Underlying Mechanism ◽  
Donor Liver ◽  
Functional Changes ◽  
Donor Liver Transplantation ◽  
C And N

Objective To investigate the effect of ascorbic acid (AA) on hemostatic function during living donor liver transplantation (LDLT). Methods Blood samples from 21 LDLT recipients were taken within 30 minutes after induction and at 120 minutes after reperfusion. Rotational thromboelastography (TEG) and western blot analysis were used to analyze for fibrinolysis and functional changes in c-Cbl and Cbl-b, respectively. TEG test samples were prepared as one of three groups: C group (0.36 mL of blood), N group (0.324 mL of blood + 0.036 mL of 0.9% normal saline), and A group (0.324 mL of blood + 0.036 mL of 200 µmol/L-AA dissolved in 0.9% normal saline). Results AA decreased fibrinolysis and increased clot rigidity at baseline and 120 minutes after reperfusion. Cbl-b expression was significantly increased at baseline and 120 minutes after reperfusion in the A group compared with the C and N groups. However, c-Cbl phosphorylation was most significantly decreased in the A group at baseline and 120 minutes after reperfusion. Conclusion AA can significantly decrease fibrinolysis and improve clot rigidity in LT recipients during LDLT, and functional changes in Cbl-b and c-Cbl might represent the underlying mechanism. AA may be considered for use during LDLT to decrease hyperfibrinolysis.

Preventive activity of ascorbic acid on lead acetate induced cerebellar damaged in adult Wistar rats

2012 ◽  
Vol 13 (4) ◽  
pp. 99-104 ◽  
Author(s):  
Sunday Abraham Musa ◽  
Iliyasu, Musa Omoniye ◽  
Wilson Oliver Hamman ◽  
Augustine Oseloka Ibegbu ◽  
Uduak Emmanuel Umana
Keyword(s):  
Ascorbic Acid ◽  
Lead Acetate ◽  
Wistar Rats ◽  
Preventive Activity

Hepatotoxicity Induced by Subchronic Exposure of Fluoride and Chlorpyrifos in Wistar Rats: Mitigating Effect of Ascorbic Acid

2015 ◽  
Vol 166 (2) ◽  
pp. 157-162 ◽  
Author(s):  
Rajinder Raina ◽  
Naseer Ahmad Baba ◽  
Pawan K Verma ◽  
Mudasir Sultana ◽  
Maninder Singh
Keyword(s):  
Ascorbic Acid ◽  
Wistar Rats ◽  
Subchronic Exposure

scholarly journals Comparative studies on the hypercholesterolaemia induced by excess dietary tyrosine or polychlorinated biphenyls in rats

1986 ◽  
Vol 56 (2) ◽  
pp. 509-517 ◽  
Author(s):  
Sahoshi Nagaoka ◽  
Mitsuhiro Kato ◽  
Yoritaka Aoyama ◽  
Akira Yoshida†
Keyword(s):  
Ascorbic Acid ◽  
Polychlorinated Biphenyls ◽  
Comparative Studies ◽  
Wistar Rats ◽  
Serum Levels ◽  
Liver Lipids ◽  
Male Wistar Rats

1. The effects of dietary polychlorinated biphenyls (PCB) and excess tyrosine on serum and liver lipids, urinary ascorbic acid and catecholamines were compared in male Wistar rats.2. Serum levels of cholesterol, urinary ascorbic acid, norepinephrine, epinephrine, dopamine and histamine were significantly increased in rats given either PCB or excess tyrosine.3. The hypercholesterolaemia induced by PCB or excess tyrosine was blocked by the adrenergic α-blocker, phenoxybenzamine.4. The present results suggest causal interrelations between the hypercholesterolaemia induced by dietary PCB or excess tyrosine and the secretion of catecholamines.

scholarly journals Study on antihyperglycemic effect of bromocriptine in dexamethasone induced hyperglycemic wistar rats

2021 ◽  
Vol 10 (6) ◽  
pp. 699
Author(s):  
Rekha M. B. ◽  
Basavaraj Bhandare ◽  
Satyanarayana V. ◽  
Hemamalini M. B.
Keyword(s):  
Diabetes Mellitus ◽  
Normal Saline ◽  
Wistar Rats ◽  
Saline Group ◽  
Control Group ◽  
Normal Saline Group ◽  
Male Wistar Rats ◽  
Group B ◽  
Control Group Group

Background: Diabetes mellitus is a chronic metabolic disorder that develops due to insulin deficiency or insulin resistance. Recent animal and human studies have reported bromocriptine to be effective in the management of type 2 diabetes mellitus. The present study was done to evaluate the antihyperglycemic effect of bromocriptine in dexamethasone induced hyperglycemic rats.Methods: Male wistar rats were used and divided into 5 groups. Dexamethosone was used to induce hyperglycemia in group B-E. Group A was the untreated control group, group B was the standard control group, group C was the oral 10 mg/kg of bromocriptine dissolved in 0.9% normal saline, group D was the oral 20 mg/kg metformin dissolved in 0.9% normal saline, group E was the oral 10 mg/kg bromocriptine+20 mg/kg metformin dissolved in 0.9% normal saline. Fasting blood glucose, post prandial blood glucose and body weight was estimated on day 1, 15, 30.Results: It was seen that dexamethasone induced hyperglycemia and increase in body weight in male wistar rats, which were significantly controlled by oral bromocriptine and bromocriptine with metformin combination.Conclusions: Results obtained from this study showed that bromocriptine can be a promising drug with novel mechanism to treat type 2 diabetes mellitus.

scholarly journals Evaluation of the Effects of Ethanolic Extract of Sesamum Indicum Seeds on Sperm Morphology and Viability in KetoconazoleInduced Testicular Damage in Male Wistar Rats

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Yusuf MK
Keyword(s):  
Body Weight ◽  
Adult Male ◽  
Normal Saline ◽  
Wistar Rats ◽  
Sperm Morphology ◽  
Ethanolic Extract ◽  
Sesamum Indicum ◽  
Testicular Damage ◽  
Male Wistar Rats ◽  
Group 2

Aim: The study was aimed at evaluating the effects of ethanolic extract of Sesamum indicum seeds on sperm morphology and viability in ketoconazole induced testicular damage in Wistar rats. Methods: Forty eight adult male Wistar rats were divided into eight Groups of six rats each. Groups 1,2,3,4,5,6,7 and 8 were administered 1ml of normal saline, 100 mg /kg body weight (bwt) of Ketoconazole only, 500 mg/kg bwt of ethanolic extract of sesamum indicum (EESI) seeds then100 mg/kg bwt of Ketoconazole, 100 mg/kg bwt of Ketoconazole then 250 mg /kg body weight of EESI seeds,100 mg/kg bwt of Ketoconazole then 500 mg/kg bwt of EESI, 100 mg/kg body weight of Ketoconazole then 0.36 mg/kg body weight of Mesterolone, 0.36 mg/kg body weight of Mesterolone, 500 mg/kg body weight of EESI respectively. All administrations were carried out orally once per day. The sperm smears were collected for semen analyses. Result: A significant increase in the abnormalities of sperm morphology and viability respectively were noted in the group administered ketoconazole alone (Group 2) compared with other experimental Groups (P ≤ 0.05). Conclusions: The administration of ethanolic extract of Sesamum indicum appeared to have minimized the damages and sperm deaths caused by ketoconazole which may be due to its androgenic properties.

Sign in / Sign up

Export Citation Format

Share Document