scholarly journals Antioxidant and Antidiabetic Effect of Hibiscus rosasinensis Flower Extract on Streptozotocin Induced Experimental Rats-a Dose Response Study

2011 ◽  
Vol 3 (4) ◽  
pp. 13-21 ◽  
Author(s):  
Mirunalini SANKARAN ◽  
Arulmozhi VADIVEL
Keyword(s):  
Diabetic Rats ◽  
Antioxidant Effect ◽  
Dependent Manner ◽  
Enzymatic Antioxidants ◽  
Control Groups ◽  
Metabolizing Enzymes ◽  
Detailed Mechanism ◽  
Flower Extract ◽  
Dose Response Study ◽  
Dose Dependent

The present study was designed to evaluate the antidiabetic and antioxidant effect of Hibiscus rosasinensis against streptozotocin induced diabetic rats. Streptozotocin (STZ) was administered as a single dose (40 mg/kg) to induce diabetes. The hypoglycemic activity of Hibiscus rosasinensis extract (HRSEt) was investigated in a dose dependent manner such as (125, 250 and 500 mg/kg bwt) by evaluating various biochemical parameters. The levels of blood glucose, carbohydrate metabolizing enzymes, TBARS, enzymatic and non-enzymatic antioxidants and lipid profiles were found to be significantly increased in diabetic rats when compared to control groups. Administration of extract in the treated groups showed altered changes in the above mentioned parameters and found that among the three doseses, 250 mg/kg showed best result when compared to other two doses. HRSEt possess antioxidant, hypoglycemic and hypolipidemic activity against streptozotocin induced diabetic rats. However the detailed mechanism(s) of action will require elucidating in further studies.

PROTECTIVE ROLE OF FICUS RACEMOSA IN DIABETES INDUCED NEUROPATHY: STRUCTURAL AND FUNCTIONAL EVIDENCES

INDIAN DRUGS ◽  
2017 ◽  
Vol 54 (11) ◽  
pp. 58-60
Author(s):  
N Solanki ◽  
◽  
S. K Bhavsar
Keyword(s):  
Sciatic Nerve ◽  
Diabetic Neuropathy ◽  
Ethanolic Extract ◽  
Protective Role ◽  
Diabetic Rats ◽  
Dependent Manner ◽  
Traditional System ◽  
Ficus Racemosa ◽  
Dose Dependent

Ficus racemosa is used in traditional system of medicine for various health problems and diseases, and is commonly known as Gular fig. The main objective was to study its effects against streptozotocin induced diabetic neuropathy by structural and functional marker. Investigation of diabetic neuropathy was carried out through functional and structural assessment in streptozotocin induced in diabetic rats. Diabetic rats were treated for 28 days in dose dependent manner of Ficus racemosa aqueous extract (250 mg/kg and 500 mg/kg) and ethanolic extract (200 mg/kg and 400 mg/kg). Study showed marked protection observed by Ficus racemosa in hippocampus region of brain and sciatic nerve tissues. Ficus racemosa treatment showed improvement in functional and structural markers, which strongly suggest its protective role in diabetic neuropathy.

Antidiabetic and antioxidative properties of the hydro-methanolic extract (60:40) of rhizomes of Curcuma amada roxb. (Zingiberaceae) in streptozotocin-induced diabetic male albino rat: a dose-dependent study through biochemical and genomic approaches

2019 ◽  
Vol 16 (4) ◽  
Author(s):  
Dipanwita Mitra ◽  
Riya Sarkar ◽  
Debidas Ghosh
Keyword(s):  
Body Weight ◽  
Methanolic Extract ◽  
Fasting Blood Glucose ◽  
Diabetic Rats ◽  
Diabetic Group ◽  
Dependent Manner ◽  
Male Adult ◽  
Curcuma Amada ◽  
Corrective Effect ◽  
Dose Dependent

Abstract Background Curcuma amada is the most popular traditional medicine in India for the treatment of diabetes. The present study aimed to focus the antidiabetic and antioxidative activity of C. amada through the analysis of biochemical and genomic levels in a dose-dependent manner in streptozotocin-induced male adult rat. Method Streptozotocin-induced diabetic rats were administered orally with hydro-methanolic extract of C. amada at the dose of 10, 20, 40 and 80 mg/100 g body weight of rats for 28 days. The antidiabetic and antioxidative efficacy of the extract on glycemic, enzymatic, genomic and histological sensors along with toxicity study was investigated. Results The result showed a significant antidiabetic and antioxidative effect of the extract at dose-dependent manner. The significant recovery of fasting blood glucose level, serum insulin, activity of carbohydrate metabolic enzymes and antioxidative enzymes in extract-treated diabetic group as compared to untreated diabetic group were noted. After the extract treatment, the size of pancreatic islet and cell population densities were significantly increased. Activities of glutamate oxaloacetate transaminase and glutamate pyruvate transaminase in liver were significantly recovered along with the correction of Bax and Bcl-2 gene expression in hepatic tissue after the extract treatment in diabetic rats in respect to untreated diabetic group. Out of all the doses, the significant effects were noted at the dose of 20 mg/100 g body weight which has been considered as threshold dose in the concern. Conclusion It may be concluded that the significant and corrective effect in most of the sensors was noted at the minimum dose of 20 mg/100 g body weight of hydro-methanolic extract of C. amada without producing any toxicity.

scholarly journals ANTI-DIABETIC EFFECT OF A NOVEL NANO POLYMER OF THYMOL IN STREPTOZOTOCIN-INDUCED DIABETIC WISTAR RATS

2019 ◽  
pp. 81-89
Author(s):  
ELAHE KARIMI ◽  
SHAHRYAR ABBASI ◽  
ALI AIDY ◽  
HORI GHANEIALVAR ◽  
SHAHRAM MOHAMMADPOUR ◽  
...  
Keyword(s):  
Animal Model ◽  
Biochemical Parameters ◽  
Wistar Rats ◽  
Liver Enzymes ◽  
Serum Glucose ◽  
Diabetic Rats ◽  
Dependent Manner ◽  
Elisa Kit ◽  
Blood Biochemical ◽  
Dose Dependent

Objective: The aim of this study was to evaluate the effect of thymol and thymol nano polymer on the blood biochemical parameters and anti-diabetic activity in Streptozotocin (STZ)-induced diabetic rats. Methods: The synthesized nano polymer (NP) was characterized by using different spectroscopy methods, such as IR, HNMR and CNMR. Loading and releasing of thymol were investigated by HPLC. Eleven groups of the Streptozotocin-induced diabetic and normal rats (overall 110 males) were tested through various biochemical factors such as: serum glucose, insulin, liver function-related enzymes including ALT, AST, ALP and bilirubin by ELISA kit methods. Results: It has shown that thymol nano polymer is desirable for transferring drug. The amount of thymol loaded on NP estimated at 43±2.5 %. Then, 65% of the loaded drug was released. LD50 for thymol and thymol nano polymer were 435 and 583 mg/kg, respectively. thymol nano polymer at doses of 30, 60 and 90 mg/kg, in a dose-dependent manner, reduced blood glucose, increased insulin levels, and controlled liver enzymes ALT, AST, ALP and bilirubin in the STZ-induced diabetic rats. Conclusion: The use of thymol nano polymer appears to be a new aspect concerning to protect diabetes-induced damage in the animal model.

scholarly journals Ferulsinaic Acid Modulates SOD, GSH, and Antioxidant Enzymes in Diabetic Kidney

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Ahmed Amir Radwan Sayed
Keyword(s):  
Antioxidant Enzymes ◽  
Renal Cortex ◽  
Weight Ratio ◽  
Diabetic Rats ◽  
Dependent Manner ◽  
Potential Drug ◽  
Body Weight Ratio ◽  
Induce Insulin Resistance ◽  
Dose Dependent ◽  
Prevention And Therapy

The efficacy of Ferulsinaic acid (FA) to modulate the antioxidant enzymes and to reduce oxidative stress induced-diabetic nephropathy (DN) was studied. Rats were fed diets enriched with sucrose (50%, wt/wt), lard (30%, wt/wt), and cholesterol (2.5%, wt/wt) for 8 weeks to induce insulin resistance. After a DN model was induced by streptozotocin; 5, 50 and 500 mg/kg of FA were administrated by oral intragastric intubation for 12 weeks. In FA-treated diabetic rats, glucose, kidney/body weight ratio, creatinine, BUN, albuminurea, and creatinine clearance were significantly decreased compared with non treated diabetic rats. Diabetic rats showed decreased activities of SOD and GSH; increased concentrations of malondialdehyde and IL-6 in the serum and kidney, and increased levels of 8-hydroxy-2′-deoxyguanosine in urine and renal cortex. FA-treatment restored the altered parameters in a dose-dependent manner. The ultra morphologic abnormalities in the kidney of diabetic rats were markedly ameliorated by FA treatment. Furthermore, FA acid was found to attenuate chronic inflammation induced by both Carrageenan and dextran in rats. We conclude that FA confers protection against injuries in the kidneys of diabetic rats by increasing activities of antioxidant enzymes and inhibiting accumulation of oxidized DNA in the kidney, suggesting a potential drug for the prevention and therapy of DN.

scholarly journals Obestatin Modulates Ghrelin’s Effects on the Basal and Stimulated Testosterone Secretion by the Testis of Rat: an In Vitro Study

2017 ◽  
pp. 93-98
Author(s):  
T. AFSAR ◽  
S. JAHAN ◽  
S. RAZAK ◽  
A. ALMAJWAL ◽  
M. ABULMEATY ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Inhibitory Effect ◽  
Human Chorionic Gonadotrophin ◽  
Dependent Manner ◽  
Control Groups ◽  
Adult Rats ◽  
Testosterone Secretion ◽  
Functional Antagonism ◽  
Dose Dependent

The functional antagonism between obestatin and ghrelin in the testis is under investigation. We investigated the ability of obestatin to counteract the inhibitory effect of ghrelin on basal and stimulated testosterone (T) secretion in vitro. Testicular strips from adult rats were incubated with 10 ng/ml and 100 ng/ml of obestatin alone, ghrelin alone and obestatin + ghrelin. Obestatin modulation of stimulated T secretion was evaluated by incubation of testicular samples with 10 ng/ml and 100 ng/ml obestatin, ghrelin and obestatin + ghrelin in the absence and presence of 10 IU of human chorionic gonadotrophin (hCG). T concentrations in the hCG treated groups were significantly (P<0.0001) higher than those in the control groups. Obestatin caused a significant increase in basal T secretion in a dose-dependent manner; however, obestatin at the both 10 ng/ml and 100 ng/ml significantly (P<0.0001) increased hCG-stimulated T secretion. In contrast, ghrelin in a dose-dependent manner significantly (P<0.001) decreased both basal and hCG-induced T secretion by testicular slices. Obestatin opposed the inhibitory effect of ghrelin on T secretion under both basal and hCG-stimulated conditions at all doses tested. In conclusions, administration of obestatin was able to antagonize the inhibitory effect of ghrelin on testosterone secretion in vitro.

scholarly journals Effects of Orally Consumed Rosa damascena Mill. Hydrosol on Hematology, Clinical Chemistry, Lens Enzymatic Activity, and Lens Pathology in Streptozotocin-Induced Diabetic Rats

Molecules ◽  
2019 ◽  
Vol 24 (22) ◽  
pp. 4069
Author(s):  
İlker Demirbolat ◽  
Cansu Ekinci ◽  
Fadime Nuhoğlu ◽  
Murat Kartal ◽  
Pelin Yıldız ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Enzymatic Activity ◽  
Aldose Reductase ◽  
Clinical Chemistry ◽  
Intraperitoneal Administration ◽  
Diabetic Rats ◽  
Rosa Damascena ◽  
Dependent Manner ◽  
Chronic Hyperglycemia ◽  
Dose Dependent

Diabetes mellitus is a multisystemic metabolic disorder that may affect the eyes, kidneys, vessels, and heart. Chronic hyperglycemia causes non-enzymatic glycation of proteins and elevation of the polyol pathway resulting in oxidative stress that damages organs. The current study aimed to investigate the dose-dependent effects of orally consumed Rosa damascena Mill. hydrosol on hematology, clinical biochemistry, lens enzymatic activity, and lens pathology in streptozotocin (STZ)-induced diabetic rats. Diabetes was induced into male Sprague–Dawley rats by intraperitoneal administration of STZ (40 mg/kg body weight). Rose hydrosols containing 1515 mg/L and 500 mg/L total volatiles (expressed as citronellol) were introduced to rats orally for 45 days. Consumption of 1515 mg/L volatile containing rose hydrosol successfully ameliorated hematologic, hepatic, and renal functions. Hydrosols also attenuated hyperglycemia and decreased the advanced glycation end-product formation in a dose-dependent manner. Rose hydrosol components significantly increased the lens enzymatic activities of glutathione peroxidase and decreased the activity of aldose reductase to prevent cataractogenesis. Histopathological examinations of rat lenses also indicated that increasing the dose of rose hydrosol had a protective effect on lenses in diabetic conditions. Additionally, in silico modeling of aldose reductase inhibition with rose hydrosol volatiles was carried out for extrapolating the current study to humans. The present results suggest that rose hydrosol exerts significant protective properties in diabetes mellitus and has no toxic effect on all studied systems in healthy test groups.

Cyperus Iria Aqueous-Ethanol Extract Ameliorated Hyperglycemia, Oxidative Stress and Regulated Inflammatory Cytokines in Streptozotocin Induced Diabetic Rats

2021 ◽  
Author(s):  
Myeda Saeed ◽  
Ali Sharif ◽  
Saeed UlHassan ◽  
Bushra Akhtar ◽  
Faqir Muhammad ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
High Performance ◽  
Aqueous Ethanol ◽  
Ethanol Extract ◽  
Diabetic Rats ◽  
Dependent Manner ◽  
Good Tolerance ◽  
Stress Markers ◽  
Tnf Α ◽  
Dose Dependent

Abstract Present study is involved in identification of biophenolic and flavonoids from the aqueous-ethanol extract of Cyperus iria and appraisal of inflammatory and stress markers involved in endocrine dysfunction based upon its folktale use. Significantly higher quantities of phenolic (82.79 ± 0.003 mg/g GAE) and flavonoid (13.61 ± 0.002 mg/g QE) contents were present. Inhibitory concentration (IC50) exhibited an excellent potential for both antioxidant (IC50 = 3.22 µg/mL) and alpha amylase (IC50 = 36.29 µg/mL) inhibitory assays. High performance liquid chromatography (HPLC), confirmed the existence of myercetin, quercetin, kaempferol and ferullic acid. Cyperus iria aqueous-ethanol extract exhibits good tolerance against glucose. Streptozotocin induced hyperglycemia declined along with improvement in inflammatory (TNF-α = 15.6 ± 0.2 g/l, COX-2 = 357 ± 0.396 U/l, IL-6 = 572 ± 0.99 pg/l) and oxidative stress markers (SOD = 163 ± 0.616 and GSH-ST = 95.8 ± 0.44 U/mL) along with biochemical parameters in a dose-dependent manner. Present study suggests that Cyperus iria aqueous-ethanol extract possess hypoglycemic potential which might be attributed to the presence of phenolics and flavonoids.

scholarly journals Modulatory effects of rutin on the expression of cytochrome P450s and antioxidant enzymes in human hepatoma cells

2016 ◽  
Vol 66 (4) ◽  
pp. 491-502 ◽  
Author(s):  
Sedar Karakurt
Keyword(s):  
Antioxidant Enzymes ◽  
Phase Ii ◽  
Hepg2 Cells ◽  
Cytochrome P450s ◽  
Dependent Manner ◽  
Protective Effects ◽  
Human Hepatoma Cells ◽  
Metabolizing Enzymes ◽  
Protein Expressions ◽  
Dose Dependent

Abstract Expression of a drug and xenobiotic metabolizing enzymes, cytochrome P450s (CYPs), and antioxidant enzymes can be modulated by various factors. The flavonoid rutin was investigated for its anti-carcinogen and protective effects as well as modulatory action on CYPs and phase II enzymes in human hepatocellular carcinoma cells. Rutin inhibited proliferation of HEPG2 cells in a dose-dependent manner with the IC50 value of 52.7 μmol L-1 and invasion of HEPG2 cells (21.6 %, p = 0.0018) and colony formation of those invaded cells (57.4 %, p < 0.0001). Rutin treatment also significantly increased early/late-stage apoptosis in HEPG2 cells (28.9 %, p < 0.001). Treatment by rutin significantly inhibited protein expressions of cytochrome P450-dependent CYP3A4 (75.3 %, p < 0.0001), elevated CYP1A1 enzymes (1.7-fold, p = 0.0084) and increased protein expressions of antioxidant and phase II reaction catalyzing enzymes, NQO1 (2.42-fold, p < 0.0001) and GSTP1 (2.03-fold, p < 0.0001). Besides, rutin treatment significantly inhibited mRNA expression of CYP3A4 (73.2 %, p=0.0014). Also, CYP1A1, NQO1 and GSTP1 mRNA expressions were significantly increased 2.77-fold (p = 0.029), 4.85- fold (p = 0.0051) and 9.84-fold (p < 0.0001), respectively.

scholarly journals Hypoglycemic Activity of Ethanol Extract of Jasminum Grandiflorum Flowers in Vivo and Cytotoxicity of Its Chloroform Isolate in Vitro

2018 ◽  
Vol 3 (2) ◽  
Keyword(s):  
Blood Glucose ◽  
Blood Glucose Level ◽  
Glucose Level ◽  
Ethanol Extract ◽  
Diabetic Rats ◽  
Hypoglycemic Activity ◽  
Albino Rats ◽  
Chloroform Fraction ◽  
Dependent Manner ◽  
Flower Extract

Ethno pharmacological relevance: Traditionally different parts of Jasminum grandiflorum have been used to treat various ailments, including diabetes. However, antidiabetic potential of Jasminum grandiflorum on animal models of diabetes have not been evaluated. Aim of the study: The objective of this study was to determine antidiabetic potential of ethanol extract of leaves and flowers of Jasminum grandiflorum, and different fractions of the flower extract in rodent model of streptozotocin-induced diabetes. Materials and methods: Ethanol extract of both leaves and flowers of Jasminum grandiflorum were screened for the presence of various phytochemicals followed by acute and sub-acute toxicity in rats. Effect of Jasminum grandiflorum leaf and flower extracts on blood glucose level in normal albino rats, in glucose-overloaded healthy albino rats, and in streptozotocininduced diabetic rats was evaluated. Furthermore, based on preliminary results, fractionalization of the flower extract was carried out using petroleum ether, ethyl acetate, methanol, and chloroform. Different fractions were further tested for hypoglycemic activity in streptozotocin-induced diabetic rats. Results: Preliminary phytochemical evaluation suggested presence of various antidiabetic metabolites in both the extracts and were found to safe up to 5000 mg/kg dose. Flower extract (500 mg/kg, p.o.) demonstrated significant hypoglycemic effect than leaf extract (500 mg/kg, p.o.) in normal rats, glucose-overloaded rats, and streptozotocin-induced diabetic rats when compared to control. Long-term effect of different fractions of ethanol extract of Jasminum grandiflorum flowers in streptozotocin model suggested that all four fractions were able to reduce blood glucose level in a time-dependent manner at 200 mg/kg dose with chloroform fraction being highly significant (p<0.001) amongst all when compared to diabetic untreated rats. Chloroform isolate from Jasminum grandiflorum flowers demonstrated enhanced glucose uptake and dosedependent cytotoxicity in L6 cell line. Conclusion: The ethanol extract of Jasminum grandiflorum flowers as well as its various fractions have potential therapeutic value in treating diabetes, which may be due to the presence of various antidiabetic metabolites, by enhancing insulin secretion and antioxidant defense. These observations rationalize its use as ethnomedicine and hence can be considered in treating diabetes.

scholarly journals Evaluation of Antiinflammatory Activity of Marine Omega-3 in Rats

2020 ◽  
Vol 2 (2) ◽  
pp. 1-5
Author(s):  
Ana Khusnul Faizah ◽  
Angelica Kresnamurti
Keyword(s):  
Tween 80 ◽  
Positive Control ◽  
Negative Control ◽  
Dependent Manner ◽  
Omega 3 ◽  
Paw Edema ◽  
Control Groups ◽  
Anti Inflammatory ◽  
Dose Dependent ◽  
Inflammatory Effect

Marine omega-3 from fish contains high EPA dan DHA which may have an analgesic and anti-inflammatory effects. The objective of study is to analyze the anti-inflammatory effect of marine omega-3 in rats. The method of this study is pre-post control experimental. The acute anti-inflammatory effect of marine omega-3 were investigated through carrageenan induced paw edema in rats. Thirty minutes before the procedure, the experimental groups were treated with fish oil 40 and 60 mg/kg; sodium diclofenac (5 mg/kg) as positive control groups and span 80-tween 80 as negative control groups. The degree of paw edema was measured by caliper. The marine omega-3 showed anti-inflammatory effect in a dose-dependent manner. The results of 60 mg/kg of marine omega-3 was significantly different compared with the negative. Overall, the marine omega-3 has acute anti-inflammatory activity in rats.

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