scholarly journals Further Studies on Antioxidant Potential and Protection of Pancreaticβ-Cells byEmbelia ribesin Experimental Diabetes

2007 ◽  
Vol 2007 ◽  
pp. 1-6 ◽  
Author(s):  
Uma Bhandari ◽  
Neeti Jain ◽  
K. K. Pillai
Keyword(s):  
Antioxidant Defense ◽  
Ethanolic Extract ◽  
Thiobarbituric Acid ◽  
Pancreatic Tissue ◽  
Serum Lactate ◽  
Diabetic Rats ◽  
Oral Feeding ◽  
Serum Lactate Dehydrogenase ◽  
Thiobarbituric Acid Reactive Substances ◽  
Embelia Ribes

This study was designed to examine the antioxidant defense by ethanolic extract ofEmbelia ribeson streptozotocin-(40 mg/kg, intravenously, single-injection) induced diabetes in Wistar rats. Forty days of oral feeding the extract (100 mg/kg and 200 mg/kg) to diabetic rats resulted in significant(P<.01)decrease in blood glucose, blood glycosylated haemoglobin, serum lactate dehydrogenase, creatine kinase, and increase in blood glutathione levels as compared to pathogenic diabetic rats. Further, the extract also significantly(P<.01)decreased the pancreatic thiobarbituric acid-reactive substances (TBARS) levels and significantly(P<.01)increased the superoxide dismutase, catalase, and glutathione levels as compared to above levels in pancreatic tissue of pathogenic diabetic rats. The islets were shrunken in diabetic rats in comparison to normal rats. In the drug-treated diabetic rats, there was expansion of islets. The results of test drug were comparable to gliclazide (25 mg/kg, daily), a standard antihyperglycemic agent. The study concludes thatEmbelia ribesenhances the antioxidant defense against reactive oxygen species produced under hyperglycemic condition and this protectsβ-cells against loss, and exhibit antidiabetic property.

scholarly journals Effect of Ethanolic Extract ofEmbelia Ribeson Dyslipidemia in Diabetic Rats

2002 ◽  
Vol 3 (3) ◽  
pp. 159-162 ◽  
Author(s):  
Uma Bhandari ◽  
Raman Kanojia ◽  
K. K. Pillai
Keyword(s):  
Folk Medicine ◽  
Anthelmintic Activity ◽  
Ethanolic Extract ◽  
Thiobarbituric Acid ◽  
Diabetic Rats ◽  
Herbal Remedies ◽  
Lipid Lowering ◽  
Embelia Ribes ◽  
Liver And Pancreas ◽  
Tbars Values

Diabetes mellitus has been treated orally with herbal remedies based on folk medicine since ancient times.Embelia ribes burm(Myrsinaceae), known commonly as vidanga, was used in Ayurveda for its anthelmintic activity. Ayurveda describes vidanga as pungent, causes increase in digestive fire, and cures flatulence and colic. A single study reported the antihyperglycemic activity of decoction ofE. ribesin glucose-induced hyperglycemic albino rabbits. In the present study, the lipid-lowering and antioxidant potential of ethanolic extract ofE. ribes burmwas investigated in streptozotocin (40 mg/kg, IV, single injection)-induced diabetes in rats. Twenty days of orally feeding the extract (200 mg/kg) to diabetic rats resulted in significant (P< 0.01) decrease in blood glucose, serum total cholesterol, and triglycerides, and increase in HDLcholesterol levels when compared to pathogenic diabetic rats. Further, the extract also lowered the liver and pancreas thiobarbituric acid–reactive substances (TBARSs) values (P< 0.01) when compared to TBARS values of liver and pancreas of pathogenic diabetic rats. The results of test drug were comparable to gliclazide (25 mg/kg, orally), a standard antihyperglycemic agent. This is the first pilot study to provide biochemical evidence of potential ofE. ribesin diabetic dyslipidemia.

scholarly journals Antioxidant Effects of Eryngium carlinae in Diabetic Rats

2018 ◽  
Vol 6 (5) ◽  
Author(s):  
Diana García-Cerrillo ◽  
Ruth Noriega-Cisneros ◽  
Donovan Peña-Montes ◽  
Maribel Huerta-Cervantes ◽  
Mónica Silva-Ríos ◽  
...  
Keyword(s):  
Metabolic Diseases ◽  
Systemic Disease ◽  
Cardiac Injury ◽  
Thiobarbituric Acid ◽  
Diabetic Rats ◽  
Cardiovascular Risks ◽  
Thiobarbituric Acid Reactive Substances ◽  
Antioxidant Effects

Metabolic diseases have increased considerably such as diabetes mellitus (DM). Since diabetes is a systemic disease, it implies high cardiovascular risks. It has been widely established that cardiac injury is related to mitochondrial dysfunction through increment of reactive oxygen species (ROS). Synthetic antioxidants can have important side effects; therefore natural sources may represent a better option. Traditional Mexican medicine has been using Eryngium carlinae (EC) for medical treatment. Also our group showed that hexanic extract possesses in vitro antioxidant capacity. Experimental diabetes in Wistar rats was generated by streptozotocin (STZ) and hexanic extract of EC was supplied for 7 weeks (30 mg/kg). Cholesterol, triacylglycerides, glucose, and thiobarbituric acid reactive substances (TBARS) levels were determined in serum. Mitochondria from left ventricle were used in the quantification of TBARS, reduced glutathione, nitric oxide (NO) levels and activity of superoxide dismutase (SOD) enzyme was performed.  Biochemical parameters of glucose and triacylglycerides, as well as TBARS levels in serum show a significant reduction in diabetic group supplied with EC hexanic extract. Thus, we can conclude that the EC hexanic extract possesses antioxidant activity in vitro, and in vivo, by reducing glucose and triacylglycerides levels during hyperglycemia, which may eventually reduce the risk of developing diabetic cardiomyopathy.

scholarly journals Spirulina maxima and its effect on antioxidant activity in fructose induced oxidative stress with histopathological observations

2015 ◽  
Vol 62 (2) ◽  
pp. 13-19
Author(s):  
Urmila Jarouliya ◽  
Anish Zacharia ◽  
Raj K. Keservani ◽  
Godavarthi B.K.S Prasad
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activity ◽  
Superoxide Dismutase ◽  
Blood Glucose ◽  
Reduced Glutathione ◽  
Thiobarbituric Acid ◽  
Diabetic Rats ◽  
Therapeutic Effects ◽  
Thiobarbituric Acid Reactive Substances ◽  
Spirulina Maxima

Abstract Diabetes mellitus is a metabolic disorder characterised by hyperglycemia and oxidative stress. The aim of the present study is to explore the antioxidant effect of Spirulina maxima in rat model along with the histopathological observations. Diabetes was induced by feeding 10% fructose solution orally to Wistar rats (n = 6) for 30 days, analysed for plasma blood glucose and the markers of the oxidative stress [catalase (CAT), superoxide dismutase (SOD), reduced glutathione (GSH) and thiobarbituric acid reactive substances (TBARS)]. These biochemical studies were associated with histopathological examination of liver and kidney sections. The microalga Spirulina maxima being rich in proteins and other essential nutrients is widely used as a food supplement. S. maxima at a dose of 5 and 10% per kg and the metformin (500 mg/kg) as reference drug were given orally for 30 days to the diabetic rats. Diabetic rats showed significant (p < 0.001) elevations in plasma blood glucose, thiobarbituric acid-reactive substances and significant reduction in catalase, superoxide dismutase and reduced glutathione activity. Oral administration of 5 and 10% aqueous extract of S. maxima for 30 days restored not only of blood glucose levels but also markers of oxidative stress. Histopathological observations of tissues manifested that the S. maxima administration had the protective and therapeutic effects against fructose-induced abnormalities in diabetic rats. It is concluded that S. maxima is effective in reinstating the antioxidant activity in addition to its antidiabetic effect in type 2 diabetic rats.

scholarly journals Antidiabetic Potentiality of the Aqueous-Methanolic Extract of Seed ofSwietenia mahagoni(L.) Jacq. in Streptozotocin-Induced Diabetic Male Albino Rat: A Correlative and Evidence-Based Approach with Antioxidative and Antihyperlipidemic Activities

2011 ◽  
Vol 2011 ◽  
pp. 1-11 ◽  
Author(s):  
Debasis De ◽  
Kausik Chatterjee ◽  
Kazi Monjur Ali ◽  
Tushar Kanti Bera ◽  
Debidas Ghosh
Keyword(s):  
Control Level ◽  
Thiobarbituric Acid ◽  
Diabetic Rats ◽  
Seed Extract ◽  
Diabetic Rat ◽  
Thiobarbituric Acid Reactive Substances ◽  
Albino Rat ◽  
Diabetic Model ◽  
Catalase Peroxidase ◽  
Swietenia Mahagoni

Antidiabetic, antioxidative, and antihyperlipidemic activities of aqueous-methanolic (2 : 3) extract ofSwietenia mahagoni(L.) Jacq. (family Meliaceae) seed studied in streptozotocin-induced diabetic rats. Feeding with seed extract (25 mg 0.25 mL distilledwater−1100 gm b.w.−1rat−1 day−1) for 21 days to diabetic rat lowered the blood glucose level as well as the glycogen level in liver. Moreover, activities of antioxidant enzymes like catalase, peroxidase, and levels of the products of free radicals like conjugated diene and thiobarbituric acid reactive substances in liver, kidney, and skeletal muscles were corrected towards the control after this extract treatment in this model. Furthermore, the seed extract corrected the levels of serum urea, uric acid, creatinine, cholesterol, triglyceride, and lipoproteins towards the control level in this experimental diabetic model. The results indicated the potentiality of the extract ofS. mahagoniseed for the correction of diabetes and its related complications like oxidative stress and hyperlipidemia. The extract may be a good candidate for developing a safety, tolerable, and promising neutraceutical treatment for the management of diabetes.

Nuclear factor-κB inhibition by pyrrolidinedithiocarbamate attenuates gastric ischemia-reperfusion injury in rats

2005 ◽  
Vol 83 (6) ◽  
pp. 483-492 ◽  
Author(s):  
Eman El Eter ◽  
Hanan H Hagar ◽  
Ali Al-Tuwaijiri ◽  
Maha Arafa
Keyword(s):  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Thiobarbituric Acid ◽  
Nuclear Factor Κb ◽  
Serum Lactate ◽  
Serum Lactate Dehydrogenase ◽  
Nuclear Factor ◽  
P53 Expression ◽  
Apoptotic Protein ◽  
Gastric Ischemia

Pyrrolidinedithiocarbamate (PDTC) is a potent antioxidant and an inhibitor of nuclear factor-κB (NF-κB). The present study examined the impact of PDTC preconditioning on gastric protection in response to ischemia-reperfusion (I/R) injury to the rat stomach. Male Wistar rats were recruited and divided into 3 groups (n=7). One group was subjected to gastric ischemia for 30 min and reperfusion for 1 hour. The second group of rats was preconditioned with PDTC (200 mg/kg body mass i.v.) 15 min prior to ischemia and before reperfusion. The third group of rats was sham-operated and served as the control group. Gastric I/R injury increased serum lactate dehydrogenase level, vascular permeability of gastric mucosa (as indicated by Evans blue dye extravasation) and gastric content of inflammatory cytokine; tumor necrosis factor-α (TNF-α). Moreover, oxidative stress was increased as indicated by elevated lipid peroxides formation (measured as thiobarbituric acid reactive substances) and depleted reduced glutathione in gastric tissues. NF-κB translocation was also detected by electrophoretic mobility shift assay. Microscopically, gastric tissues subjected to I/R injury showed ulceration, hemorrhages, and neutrophil infiltration. Immunohistochemical studies of gastric sections revealed increased expression of p53 and Bcl-2 proteins. PDTC pretreatment reduced Evans blue extravasation, serum lactate dehydrogenase levels, gastric TNF-α levels, and thiobarbituric acid reactive substances content, and increased gastric glutathione content. Moreover, PDTC pretreatment abolished p53 expression and inhibited NF-κB translocation. Finally, histopathological changes were nearly restored by PDTC pretreatment. These results clearly demonstrate that NF-κB activation and pro-apoptotic protein p53 induction are involved in gastric I/R injury. PDTC protects against gastric I/R injury by an antioxidant, NF-κB inhibition, and by reduction of pro-apoptotic protein p53 expression, which seems to be downstream to NF-κB, thus promoting cell survival. Key words: pyrrolidinedithiocarbamate, ischemia–reperfusion injury, gastric mucosa, nuclear factor-κB, inflammatory cytokines, oxidative stress.

Olive cake reduces glycaemia and lipemia and increases antioxidant enzymes in STZ-induced diabetes in rat erythrocytes and tissues

2019 ◽  
Vol 50 (2) ◽  
pp. 360-372
Author(s):  
Hayet Cherrad ◽  
Sherazede Bouderbala ◽  
Yahiaoui Zidan ◽  
Djamil Krouf
Keyword(s):  
Antioxidant Enzymes ◽  
Heart Muscle ◽  
Design Methodology ◽  
Thiobarbituric Acid ◽  
Diabetic Rats ◽  
Thiobarbituric Acid Reactive Substances ◽  
Olive Cake ◽  
Sod Activity ◽  
Content Type ◽  
Antioxidant Enzymes Activities

Purpose The purpose of this study is to determine the effect of olive cake (CO) on glycaemia and lipemia and lipid peroxidation and antioxidant enzymes activities in erythrocytes and tissues, in streptozotocin (STZ)-induced diabetic rats. Design/methodology/approach Diabetes was induced by a single intraperitoneal injection of STZ (55 mg/kg BW). In total, 12 diabetic D rats, weighing 260 ± 20 g, were divided into two groups fed a casein diet supplemented (D-OC) or not (D) with OC (7.5 per cent), for four weeks. Findings In D-OC compared with D, glycaemia, total cholesterol and triglycerides values (−40 per cent; p = 0.007, 27 per cent; p = 0.007 and −27 per cent; p = 0.0019). In erythrocyte, liver, kidney, heart, muscle and brain, thiobarbituric acid reactive substances contents were respectively, (−19 per cent; p = 0.03, −32 per cent; p = 0.002, −20 per cent; p = 0.04, −68 per cent; p = 0.003, −74 per cent; p = 0.0003 and −38 per cent; p = 0.04). In erythrocyte, SOD, GSH-Px and CAT activities were respectively, (+14 per cent; p = 0.01, +74 per cent; p = 0.012 and +34 per cent; p = 0.0009). In the liver, kidney, heart and muscle, SOD activity was respectively, (+31 per cent; p = 0.004, +12 per cent; p = 0.038, +43 per cent; p = 0.001 and +23 per cent; p = 0.18). GSH-Px activity was respectively, (+121 per cent; p = 0.0009, 89 per cent; p = 0.0006, + 95 per cent; p = 0.008, +71 per cent; p = 0.02 and +26 per cent; p = 0.01), in the liver, kidney, heart, muscle and brain. Catalase activity was (+21 per cent; p = 0.008) in the liver, (+88 per cent; p = 0.0002 in the kidney, +53 per cent; p = 0,002 in the heart and 83 per cent; p = 0.00004 in the muscle). Originality/value In diabetic rats, OC reduces hyperglycaemia induced by STZ and attenuates triglyceridemia and cholesterolemia. This residue is able to decrease the oxidative stress by increasing the antioxidant enzymes activity in erythrocytes and tissues. The high contents of phytoconstituents present in OC are considered to be responsible for this effect.

scholarly journals EVALUATION OF HEPATOPROTECTIVE AND ANTIOXIDANT EFFECT OF COMBRETUM ALBIDUM G. DON AGAINST CCl4 INDUCED HEPATOTOXICITY IN RATS

2016 ◽  
Vol 8 (9) ◽  
pp. 218
Author(s):  
D. Rajalingam ◽  
R. Varadharajan ◽  
S. Palani
Keyword(s):  
Antioxidant Activity ◽  
Ethanolic Extract ◽  
Thiobarbituric Acid ◽  
Experimental Models ◽  
Thiobarbituric Acid Reactive Substances ◽  
Glutathione S Transferase ◽  
Standard Drug ◽  
Whole Plant ◽  
Histopathological Studies ◽  
Dose Levels

<p><strong>Objective: </strong>The present investigations were undertaken to evaluate the hepatoprotective and antioxidant activity of the ethanolic extract of the whole plant of <em>Combretum albidum G </em>Don against CCl<sub>4</sub>-induced hepatotoxicity in rats.</p><p><strong>Methods</strong><strong>:</strong><strong> </strong>Hepatoprotective effect of ethanolic extract of <em>Combretum albidum</em> (EECA) was determined by using carbon tetrachloride (CCl<sub>4</sub>) intoxication of rats as experimental models. The extent of liver damage and effect of the plant extract was assessed by various biochemical parameters like alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), total billrubin (TB) and total protein (TP) in blood serum and concentration of thiobarbituric acid reactive substances (TBARS), reduced glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-s-transferase (GST) in liver were determined. Histopathological changes in the liver of different groups were also studied.</p><p><strong>Results: </strong>The administration of EECA at dose levels of 250 and 500 mg/kg/b.w., orally had decreased the rise of ALT, AST, ALP, TB and TBRAS levels and the effects were comparable to standard drug (Silymarin 25 mg/kg/b. w,) the GSH, SOD, CAT, GPx, GST and TP levels were significantly increased in the animals received EECA. The histopathological studies show decreased necrosis and hepatocellular degeneration when compared to the CCl  intoxicated liver.</p><p><strong>Conclusion: </strong>This study demonstrates that the hepatoprotective and the antioxidant activity of the whole plant of <em>Combretum albidum</em> therefore scientifically supports the use of this plant in traditional medicine for treatment of liver disorders.</p>

scholarly journals Investigation of Antidiabetic, Antihyperlipidemic, andIn VivoAntioxidant Properties ofSphaeranthus indicusLinn. in Type 1 Diabetic Rats: An Identification of Possible Biomarkers

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
S. Ramachandran ◽  
K. Asokkumar ◽  
M. Uma Maheswari ◽  
T. K. Ravi ◽  
A. T. Sivashanmugam ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Properties ◽  
Ethanolic Extract ◽  
Thiobarbituric Acid ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Lipid Lowering ◽  
Sphaeranthus Indicus

The present investigation was aimed to study the antidiabetic, antihyperlipidemic, andin vivoantioxidant properties of the root ofSphaeranthus indicusLinn. in streptozotocin- (STZ-) induced type 1 diabetic rats. Administration of ethanolic extract ofSphaeranthus indicusroot (EESIR) 100 and 200 mg/kg to the STZ-induced diabetic rats showed significant () reduction in blood glucose and increase in body weight compared to diabetic control rats. Both the doses of EESIR-treated diabetic rats showed significant () alteration in elevated lipid profile levels than diabetic control rats. The EESIR treatment in diabetic rats produced significant increase in superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and decrease in thiobarbituric acid reactive substances (TBARS) levels than diabetic control rats. Administration of EESIR 200 mg/kg produced significant () higher antioxidant activity than EESIR 100 mg/kg. The high performance liquid chromatography (HPLC) analysis of EESIR revealed the presence of biomarkers gallic acid and quercetin. In conclusion, EESIR possess antidiabetic, antihyperlipidemic, andin vivoantioxidant activity in type 1 diabetic rats. Its antioxidant and lipid lowering effect will help to prevent diabetic complications, and these actions are possibly due to presence of above biomarkers.

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