scholarly journals Hepatoprotective Activities of Ethanolic Roots Extract of Ageratum Conyzoides on Alloxan-Induced Hepatic Damage in Diabetic Wistar Rats

2018 ◽  
Vol 36 (01) ◽  
pp. 039-045 ◽  
Author(s):  
A.O. Ojewale ◽  
H.B. Akpan ◽  
F.A. Faduyile ◽  
P.D. Shallie ◽  
A.A. Akande ◽  
...  

Introduction The aim of the present study was to evaluate the hepatoprotective activities of the ethanolic roots extract of Ageratum conyzoides (AC) in alloxan-induced hepatic damage in diabetic rats. Materials and Methods Diabetes was induced in Wistar rats by the administration of alloxan (150 mg/kg, intraperitoneal). The ethanolic roots extract of AC, at doses of 250 and 500 mg/kg of body weight, was administered to diabetes-induced rats at a single dose per day for a period of 28 days. Results The effect of the ethanolic roots extract of AC on blood glucose, alanine aminotransferase (ALT), aspartate aminotransferase (AST), and hepatic oxidative stress markers was measured in the diabetic rats. The ethanolic roots extract of AC exhibited significant reduction of blood glucose (p < 0.05) at the dose of 500 mg/kg when compared with the standard drug glibenclamide (600 µg/kg). The alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels increased significantly (p < 0.05) in the diabetic group without treatment when compared with the control group. In addition, the levels of oxidative stress markers, such as superoxide dismutase (SOD), catalase (CT), glutathione peroxidase (GPx), and glutathione (GSH), were significantly decreased in the diabetic rats compared with the normal rats, while the lipid peroxidation significantly increased in the diabetic group without treatment compared with the control (normal) group. The results demonstrated that the morphological, functional and oxidative stress changes in the liver caused by the ingestion of alloxan were attenuated in diabetic rats treated with the ethanolic roots extract of AC. Conclusion We concluded that the ethanolic roots extract of AC possesses significant antidiabetic, antioxidant and hepatoprotective effects on alloxan-induced diabetic rats.

Author(s):  
D. G. Syahidah Nadiah Binti Abdull Majid ◽  
Mohammad Iqbal

Objective: The antihyperglycemic and antioxidative effects of L. microphyllum were evaluated by using in vivo methods in normal and alloxan induced diabetic rats.Methods: Diabetes was induced in Sprague Dawley rats by injecting alloxan through intravenous (i. v) at a dose of 100 mg/kg of body weight. Aqueous extract of L. microphyllum at different doses (400, 200 and 100 mg/kg of body weight) was administered orally (orogastric intubation) for 14 d. Blood glucose and oxidative stress markers were measured. Hematoxylin and eosin staining method were used to examine the pancreatic tissues.Results: At the 14 d interval, fasting blood glucose showed a reduction in serum glucose levels in animals pretreated with L. microphyllum compared with alloxan alone treated group. Oxidative stress was noticed in rat’s pancreatic tissue as evidenced by a significant decrease in glutathione level, glutathione reductase, glutathione-S-transferase, and catalase activities. Malondialdehyde showed a significant increase compared to the normal saline-treated control group. Serum biochemistry and oxidative stress markers were consistent with the pancreatic histopathological studies. Treatment of diabetic rats with L. microphyllum at a dose level of 100, 200 and 400 mg/kg body weight leaves extract for 14 d significantly prevented these alterations and attenuated alloxan-induced oxidative stress (P<0.05).Conclusion: The results of the present study indicated that the antihyperglycemic potential of L. microphyllum might be ascribable to its antioxidant and free radical scavenging properties. Thus, it is concluded that L. microphyllum may be helpful in the prevention of diabetic complications associated with oxidative stress.


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.


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.


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):  
Wafa Laaboudi ◽  
Jamal Ghanam ◽  
Oumaima Ghoumari ◽  
Fatiha Sounni ◽  
Mohammed Merzouki ◽  
...  

<p><strong>Objective: </strong>The aim of the present study was to determine the effects of an olive tree extract with high polyphenols content on blood glucose level and other related parameters in streptozotocin-induced diabetic rats.<strong></strong></p><p><strong>Methods: </strong>Diabetes was induced in rats by intraperitoneal injection of streptozotocin (55 mg/kg bw). 72h after injection, rats with fasting blood glucose higher than 2 g/l were used for the experiments. Olive tree extract was administered for 28 d and blood glucose level was measured every 4 d. Total cholesterol, triglycerides, HDL-cholesterol, creatinine, urea, total protein, uric acid, aspartate aminotransferase and alanine aminotransferase levels, were determined at the end of the experiment.</p><p><strong>Results: </strong>The oral administration of olive tree extract contributes to blood glucose level decreasing in diabetic rats group, which was significantly lower at 4th week compared to the diabetic control rats. Moreover, supplementation by olive tree extract decreased significantly (p&lt;0.05) the values of total cholesterol, triglycerides, HDL-cholesterol, creatinine, urea, total protein, uric acid, aspartate aminotransferase and alanine aminotransferase resulting from damage caused by streptozotocin treatment. Beside this, significant reduce (p&lt;0.05) in heart disease risk ratio was observed for treated group (4.1±0.14) compared to untreated group (7.64±0.36), which was quite similar to normal rats (4.50±0.36). Studied olive tree extract effects were similar to those of glibenclamide, a well-known antidiabetic drug.</p><p><strong>Conclusion: </strong>Results herein obtained reveal the hypoglycemic effect of this olive tree extract, suggesting his potential use as a natural antidiabetic agent.</p>


2019 ◽  
Vol 38 (3) ◽  
pp. 267-274 ◽  
Author(s):  
Shahrokh Bagheri ◽  
Mostafa Moradi Sarabi ◽  
Peyman Khosravi ◽  
Reza Mohammadrezaei Khorramabadi ◽  
Saeid Veiskarami ◽  
...  

2012 ◽  
Vol 4 (5) ◽  
pp. 871-876 ◽  
Author(s):  
DONGHONG FANG ◽  
XUESI WAN ◽  
WANPING DENG ◽  
HONGYU GUAN ◽  
WEIJIAN KE ◽  
...  

2020 ◽  
Vol 11 (2) ◽  
pp. 88-98
Author(s):  
Babatunde Ogunlade ◽  
◽  
Olasumbo Afolayan ◽  
Sunday Adelakun ◽  
◽  
...  

Lead (Pb) exposure induces oxidative stress causing imbalance in antioxidant enzymes, cognitive impairments and neurodegeneration. This study investigated the neuroprotective and antioxidant properties of sulphoraphane (SFN) on Pb-induced neurotoxicity of adult Wistar rats. Forty animals (150 ± 20 g) were divided into four groups (n=10): Group A received normal saline as placebo; Group B received 50 mg/kg body weight (bw) of Lead only; Group C received a combination of 50 mg/kg bw of Lead and 50 mg/kg bw of SFN; Group D received 50 mg/kg bw of SFN only. All administration was through oral gavages for 28 days; animals underwent behavioural tests (Morris water and Y- mazes); and thereafter sacrificed and brains extracted. Biochemical estimations of antioxidants (superoxide dismutase, reduced glutathione, and catalase), oxidative stress markers (malondialdehyde, nitric oxide, and hydrogen peroxide), neurotransmitters (dopamine, serotonin, and norepinephrine) and hippocampal histology were done. The results showed significant increase in escape latency, norepinephrine and oxidative stress markers with concomitant decrease percentage correct alternation, serotonin, dopamine and antioxidant enzymes in Pb exposed rats compared with the control. However, the co-administration of SFN and Pb significantly attenuated Pb neurotoxicity. Sulphoraphane is capable of ameliorating oxidative stress induced neurobehavioural deficits and hippocampal neurochemistry caused by Pb exposure in Alzheimer’s type animal model of neurodegenerative disorder.


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