scholarly journals Effects of Phenolic Compounds of Fermented Thai Indigenous Plants on Oxidative Stress in Streptozotocin-Induced Diabetic Rats

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Chaiyavat Chaiyasut ◽  
Winthana Kusirisin ◽  
Narissara Lailerd ◽  
Peerasak Lerttrakarnnon ◽  
Maitree Suttajit ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Thiobarbituric Acid ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
Control Group ◽  
Thiobarbituric Acid Reactive Substance ◽  
Indigenous Plants ◽  
Glucose Levels ◽  
Abnormal Glucose Metabolism

We investigated the effects of antioxidant activity of fermentation product (FP) of five Thai indigenous products on oxidative stress in Wistar rats with streptozotocin (STZ)-induced diabetes type II. The rats were fed with placebo and with the FP (2 and 6 mL/kg body weight/day) for 6 weeks. Rutin, pyrogallol and gallic acid were main compounds found in the FP. Plasma glucose levels in diabetic rats receiving the higher dose of the FP increased less when compared to the diabetic control group as well as the group receiving the lower FP dose (13.1%, 29%, and 21.1%), respectively. A significant dose-dependent decrease in plasma levels of thiobarbituric acid reactive substance (P<.05) was observed. In addition, the doses of 2 and 6 mL FP/kg/day decreased the levels of erythrocyte ROS in diabetic rats during the experiment, but no difference was observed when compared to the untreated diabetic rat group. Results imply that FP decreased the diabetes-associated oxidative stress to a large extent through the inhibition of lipid peroxidation. The FP also improved the abnormal glucose metabolism slightly but the difference was not statistically significant. Thus, FP may be a potential therapeutic agent by reducing injury caused by oxidative stress associated with diabetes.

Resistance of erythrocytes from Brown trout (Salmo trutta m. trutta L.) affected by ulcerative dermal necrosis syndrome

2011 ◽  
Vol 14 (3) ◽  
pp. 443-448 ◽  
Author(s):  
N. Kurhalyuk ◽  
H. Tkachenko ◽  
K. Pałczyńska
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Thiobarbituric Acid ◽  
Control Group ◽  
Thiobarbituric Acid Reactive Substance ◽  
Tbars Level ◽  
Reactive Substance ◽  
Brown Trout Salmo Trutta

Resistance of erythrocytes from Brown trout (Salmo trutta m. trutta L.) affected by ulcerative dermal necrosis syndrome In the present work we evaluated the effect of ulcerative dermal necrosis (UDN) syndrome on resistance of erythrocytes to haemolytic agents and lipid peroxidation level in the blood from brown trout (Salmo trutta m. trutta L.). Results showed that lipid peroxidation increased in erythrocytes, as evidenced by high thiobarbituric acid reactive substance (TBARS) levels. Compared to control group, the resistance of erythrocytes to haemolytic agents was significantly lower in UDN-positive fish. Besides, UDN increased the percent of hemolysated erythrocytes subjected to the hydrochloric acid, urea and hydrogen peroxide. Results showed that UDN led to an oxidative stress in erythrocytes able to induce enhanced lipid peroxidation level, as suggested by TBARS level and decrease of erythrocytes resistance to haemolytic agents.

scholarly journals BLOOD GLUCOSE LEVELS AND THE MICROSCOPIC STRUCTURE OF KIDNEY WISTAR RAT DIABETES MELLITUS UNDER THE EFFECT OF LAWSONIA INERMIS (LINN.) LEAVES ETHANOLIC EXTRACT

2018 ◽  
Vol 11 (4) ◽  
pp. 257
Author(s):  
Mutiara Indah Sari ◽  
Maya Anjelir Antika ◽  
Dwi Rita Anggraini
Keyword(s):  
Diabetes Mellitus ◽  
Blood Glucose ◽  
Ethanolic Extract ◽  
Wistar Rat ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Control Group ◽  
Lawsonia Inermis ◽  
Control Group Design ◽  
Glucose Levels

 Objective: Lawsonia inermis (Linn.) leaves are one of the alternative medicines to treat diabetes mellitus in Indonesia. We investigated the blood glucose level (BGL) of the L. inermis (Linn.) leaves ethanolic extract (LLEE) leaves and evaluated the histopathological alterations in diabetic rats.Methods: This study was an experimental study with posttest - only control group design. Alloxan (120 mg/kg, intraperitoneally)-induced diabetic rats. 35 of Wistar rats (Rattus norvegicus) were divided randomly into five groups, i.e. K: Normal control, P1: Diabetic control, and P2, P3, and P4 (200 mg/kg body weight [BW], 400 mg/kg BW, and 600 mg/kg BW of LLEE, orally) for 28 days. At the end of the treatment, the rats were sacrificed to obtain the kidney for histopathological evaluation using hematoxylin and eosin technique. BGLs were conducted using a glucose meter (GlucoDR).Results: One-way ANOVA test showed that dose 400 mg/kg BW of the LLEE was related to BGL of alloxan-induced diabetic rats (p=0.000). The histopathological of kidney showed glomerular inflammation (GI), epithelial membrane lining degeneration, vascular congestion, and interstitial tubule hemorrhage at diabetic control (P1). Meanwhile, treated with 600 mg/kg BW of LLEE (P4) showed increase cellular regeneration as normal architecture of the kidney.Conclusion: The LLEE at dose 400 mg/kg BW effective decreased BGL and was able to restore the kidney destruction of alloxan-induced diabetic rats at dose 600 mg/kg BW.

scholarly journals The Haematological Effects of Oleanolic Acid in Streptozotocin-Induced Diabetic Rats: Effects on Selected Markers

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Charity M. Baloyi ◽  
A. Khathi ◽  
Ntethelelo H. Sibiya ◽  
Phikelelani S. Ngubane
Keyword(s):  
Oxidative Stress ◽  
Oleanolic Acid ◽  
Blood Glucose Concentration ◽  
Glycated Haemoglobin ◽  
Diabetic Control ◽  
Cardiovascular Complications ◽  
Diabetic Rats ◽  
Control Group ◽  
Rbc Indices ◽  
Notable Increase

Background. Sustained hyperglycaemia leads to the development of haematological alterations which, if left untreated, is associated with cardiovascular complications. Insulin is the mainstay drug in type 1 diabetes mellitus (T1D); however, the use of insulin is associated with haematological alterations that could further worsen cardiovascular complications. Therefore, the aim of the study was to investigate the haematological effects of oleanolic acid (OA) in streptozotocin- (STZ-) induced diabetic rats. Methods. The animals were separated into five groups; the nondiabetic group (ND), the diabetic control group (DC), and the treatment groups of insulin (170 μg/kg, s.c), metformin (500 mg/kg, p.o), and OA (80 mg/kg, p.o). OA was administered orally twice a day. Thereafter, the animals were sacrificed, and blood and tissues were collected for haematological, hormonal, and oxidative status analysis. Results. Untreated diabetic rats exhibited hyperglycaemia, elevated glycated haemoglobin (HbA1c), oxidative stress, and a reduced erythropoietin (EPO) concentration when compared to ND rats. However, administration of OA attenuated hyperglycaemia, HbA1c, and EPO concentrations compared to DC rats. The reduction of blood glucose concentration, HbA1c, and improved EPO concentrations was further associated with a notable increase in red blood cell (RBC) count and other RBC indices. We also observed an increase in the antioxidant status of the RBCs with a concomitant decrease in oxidative stress. Conclusion. These findings suggest that OA improves diabetes-induced haematological changes caused by hyperglycaemia and attenuates the progression of cardiovascular complications in DM individuals.

scholarly journals Comparative Study of the Antioxidant Effects of Metformin, Glibenclamide, and Repaglinide in Alloxan-Induced Diabetic Rats

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Bonaventure Chukwunonso Obi ◽  
Theophine Chinwuba Okoye ◽  
Victor Eshu Okpashi ◽  
Christiana Nonye Igwe ◽  
Edwin Olisah Alumanah
Keyword(s):  
Oxidative Stress ◽  
Diabetes Mellitus ◽  
Diabetic Complications ◽  
Significant Proportion ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Control Group ◽  
Diabetic Control Group ◽  
Antioxidant Effects ◽  
And Oxidative Stress

Diabetes mellitus is one of the serious global health problems affecting a significant proportion of both developed and developing countries. Overproduction of free radicals and oxidative stress has been associated with the development of diabetic complications. In the present study, the antioxidant effects of metformin (MET), glibenclamide (GLI), and repaglinide (REP) were evaluated in alloxan-induced diabetic rats. The findings from this study may possibly help in understanding the efficacy of these standard drugs in managing the complications arising from diabetes mellitus (DM). Alloxan (130 mg/kg BW) was administered as a single dose to induce diabetes. Four (4) groups of rats (n=6) were used; group 1 served as diabetic control while groups 2, 3, and 4 were the diabetic test groups that received MET (25 mg/kg), GLI (2.5 mg/kg), and REP (0.5 mg/kg), respectively. The result of the study showed significant (p<0.05) improvement in the altered antioxidant enzymes (SOD, CAT) and GSH concentration in diabetic treated rats compared with the diabetic control group. MET and REP produced significant effect on the MDA concentration while GLI showed insignificant reduction in the MDA concentration compared with the diabetic control. Findings from this study suggest that the administration of MET, GLI, and REP exerts significant antioxidant effects in alloxan-induced diabetic rats, thus contributing to the protective effect against oxidative stress-induced damage during diabetic complications.

scholarly journals Genipin and Insulin Combined Treatment Improves Implant Osseointegration in Type 2 Diabetic Rats

2020 ◽  
Author(s):  
Jiajia Zhang ◽  
Ya-nan Wang ◽  
Tingting Jia ◽  
Haiyun Huang ◽  
Dongjiao Zhang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Combined Treatment ◽  
Harmful Effect ◽  
Diabetic Rats ◽  
Control Group ◽  
Ampk Signaling ◽  
Glucose Levels ◽  
Negative Effect ◽  
Underlying Mechanisms

Abstract Background: Type 2 diabetes mellitus (T2DM) has a harmful effect on the stability and osseointegration of dental implants. T2DM induces mitochondrial damage by inhibiting AMPK signaling, resulting in oxidative stress and poor osteogenesis in the peri-implant bone area. Genipin is a major component of gardenia fruits with strong antioxidant, anti-inflammation, and anti-diabetic actions, and it also can activate mitochondrial quality control via the AMPK pathway. The purpose of this study was to investigate the effects of genipin and insulin treatment on implant osseointegration in T2DM rats and explore the underlying mechanisms. Methods: Streptozotocin-induced diabetic rats received implant surgery in their femurs, and were then assigned to five groups that were subjected to different treatments for three months: control group, T2DM group, insulin-treated T2DM group (10 IU/kg), genipin-treated T2DM group (50 mg/kg), and the genipin and insulin combination-treated T2DM group. Then, we regularly assessed the weight and glucose levels of the animals. Rats were euthanized at three months after the implantation procedure, and the femora were harvested for microscopic computerized tomography analysis, biomechanical tests, and different histomorphometric assessment. Results: The results indicated that the highest blood glucose and oxidative stress levels were measured for the T2DM group, resulting in the poorest osseointegration. The combination-treated T2DM group mitigated hyperglycemia and normalized, reactivated AMPK signaling, and alleviated oxidative stress as well as reversed the negative effect of osseointegration. There were beneficial changes observed in the T2DM-genipin and T2DM-insulin groups, but these were less in comparison to the combination treatment group. Conclusion: Our study suggests that treatment with genipin in combination with insulin could be an effective method for promoting implant osseointegration in T2DM rats, which may be related to AMPK signaling.

scholarly journals ANTIDIABETIC AND ANTIHYPERLIPIDAEMIC EFFECTS OF THE ETHANOL EXTRACT OF THE LEAVES AND STEM OF CISSUS GRACILLIS (GULL ET PERR) (VITACEAE)

2021 ◽  
pp. 54-56
Author(s):  
OLUSAYO A SHORINWA ◽  
GORDON EI EMENU
Keyword(s):  
Blood Glucose ◽  
Ethanol Extract ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Control Group ◽  
Albino Rats ◽  
Phytochemical Screening ◽  
Glucose Levels ◽  
Diabetic Control Group ◽  
Alloxan Monohydrate

Objectives: This study investigated the antidiabetic and antihyperlipidemic potential of the ethanol extract of the leaves and stem of Cissus gracillis on alloxan monohydrate-induced diabetic albino rats. Methods: Preliminary phytochemical screening and acute toxicity were carried out. Animals were assigned into seven groups of five rats each. Groups A and B were administered 10 mg/kg each of glibenclamide and atorvastatin respectively, C, D, and E were given 125, 250 and 500 mg/kg of ethanol extract of C. gracillis, respectively, daily for 21 days through oral gavage, group F was diabetic but untreated (diabetic control group), while group G was non-diabetic and untreated which served as the control group. Results: Phytochemical screening revealed the presence of steroids/triterpenoids and carbohydrates. LD50 was above 5000 mg/kg. The extract at 500 mg/kg showed a statistically significant (p<0.05) decrease in blood glucose level when compared with the glibenclamide group on day 21. However, gradual non- significant reduction in blood glucose levels were observed in the extract treated groups on the 7th, 14th, and 21st days of treatment. The administration of ethanol extract of C. gracillis to alloxan-induced diabetic rats produced a decrease in total cholesterol, triglycerides, and low-density lipoproteins comparable to glibenclamide and atorvastatin. Conclusion: The ethanol extract of the leaves and stem of C. gracillis possess a mildly significant antidiabetic and antihyperlipidemic activity.

scholarly journals Effects of Metformin in Combination with a Herbal Capsule (Glucoblock) on Insulin Resistance and Oxidative Stress Index in Type 2 Diabetic Rats

2021 ◽  
pp. 18-25
Author(s):  
Ojoye N. Briggs ◽  
Kemzi N. Elechi-amadi ◽  
Justice C. Ohaka ◽  
Edna O. Nwachuku ◽  
Bartimaeus S. Ebirien-agana
Keyword(s):  
Oxidative Stress ◽  
Insulin Resistance ◽  
Diabetic Control ◽  
Negative Control ◽  
Diabetic Rats ◽  
Stress Index ◽  
Control Group ◽  
Oxidative Stress Index ◽  
Treatment Groups ◽  
And Oxidative Stress

Aim: This study evaluated the effects of metformin in combination with a herbal capsule (glucoblock) on insulin resistance and oxidative stress index in type 2 diabetic rats. Methodology: A total of 35 male Wistar albino rats weighing between 120-220 g were used for this study. The rats were placed on high fat diet, and diabetes was induced by a single intraperitoneal injection of freshly prepared streptozotocin (STZ) (45 mg/kg body wt). Fasting plasma glucose (FPG) was determined using the glucose oxidase method. Fasting plasma insulin (FPI), total oxidant status (TOS), total antioxidant status (TAS) and superoxide dismutase (SOD) levels were quantitatively determined by a rat-specific sandwich-enzyme linked immunosorbent assay (ELISA) method. Insulin resistance (IR) was determined using the homeostatic model assessment for insulin resistance (HOMA-IR) method. Oxidative stress index (OSI) was determined by the ratio of TOS to TAS. Phytochemical analysis on the herbal capsule was done using classical methods. Results: The results revealed the presence of alkaloids (100.31μg/mg), flavonoids (131.45μg/mg), cardiac glycosides (55.93μg/mg) and saponins (61.47μg/mg) in the herbal drug glucoblock. The results showed significantly lower FPG levels in the treatment groups when compared to the diabetic control. Group 3 administered metformin had significantly higher FPG levels compared to the negative control. Group 4 administered the herbal drug glucoblock and group 5 administered a combination of metformin and glucoblock, showed no significant differences in FPG levels when compared to the negative control. The diabetic control had significantly higher FPI levels compared to the negative control and treatment groups. The treatment groups showed no significant differences in FPI levels when compared to the negative control. HOMA-IR was significantly higher in the diabetic control compared to the negative control and treatment groups. Also, HOMA-IR values in the treatment groups showed no significant difference compared to the negative control except for group 3 (metformin), that was significantly higher than the negative control. SOD was significantly lower in the diabetic control, compared to the negative control and treatment groups. There were no significant differences in SOD levels in the treatment groups compared to the negative control. TOS levels in the negative control group and treatment groups were significantly lower, compared to the diabetic control. TAS was significantly lower in the diabetic control and treatment groups compared to the negative control. OSI in the diabetic control was significantly higher, compared to the negative control and treatment groups. Also, the treatment groups had significantly higher OSI compared to the negative control. Conclusion: High fat diet and streptozotocin induction produced significant insulin resistance and oxidative stress in the diabetic rats. Glucoblock was more effective in reducing insulin resistance compared to metformin. The combination showed synergistic drug-herb reaction as glucoblock potentiated the actions of metformin. Both showed antioxidant potential but were not effective in lowering oxidative stress to normal levels. There is need to incorporate antioxidant therapy in the treatment protocol for diabetes mellitus.

scholarly journals Role of Hyperketonemia in Inducing Oxidative Stress and Cellular Damage in Cultured Hepatocytes and Type 1 Diabetic Rat Liver

2015 ◽  
Vol 37 (6) ◽  
pp. 2160-2170 ◽  
Author(s):  
Preeti Kanikarla-Marie ◽  
Sushil K. Jain
Keyword(s):  
Oxidative Stress ◽  
Liver Damage ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Cellular Damage ◽  
Diabetic Rat ◽  
Blood Levels ◽  
Per Se ◽  
Rat Livers

Background/Aims: Type 1 diabetic (T1D) patients have a higher incidence of liver disease. T1D patients frequently experience elevated plasma ketone levels along with hyperglycemia. However, no study has examined whether hyperketonemia per se has any role in excess liver damage in T1D. This study investigates the hypothesis that hyperketonemia can induce oxidative stress and cellular dysfunction. Methods: STZ treated diabetic rats, FL83B hepatocytes, and GCLC knocked down (GSH deficient) hepatocytes were used. Results: The blood levels of ALT and AST, biomarkers of liver damage, and ketones were elevated in T1D rats. An increase in NOX4 and ROS along with a reduction in GSH and GCLC levels was observed in T1D rat livers in comparison to those seen in non-diabetic control or type 2 diabetic rats. MCP-1 and ICAM-1 were also elevated in T1D rat livers and ketone treated hepatocytes. Macrophage markers CCR2 and CD11A that interact with MCP-1, and ICAM-1 respectively, were also elevated in the T1D liver, indicating macrophage infiltration. Additionally, activated macrophages increased hepatocyte damage with ketone treatment, which was similar to that seen in GCLC knockdown hepatocytes without ketones. Conclusion: Hyperketonemia per se can induce macrophage mediated damage to hepatocytes and the liver, caused by GSH depletion and oxidative stress up regulation in T1D.

Rosa rugosa Attenuates Diabetic Oxidative Stress in Rats with Streptozotocin-Induced Diabetes

2004 ◽  
Vol 32 (04) ◽  
pp. 487-496 ◽  
Author(s):  
Eun Ju Cho ◽  
Takako Yokozawa ◽  
Hyun Young Kim ◽  
Naotoshi Shibahara ◽  
Jong Cheol Park
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Body Weight Gain ◽  
Thiobarbituric Acid ◽  
Serum Levels ◽  
Serum Glucose ◽  
Diabetic Rats ◽  
Radical Scavenger ◽  
Thiobarbituric Acid Reactive Substance ◽  
Rosa Rugosa

The effects of Rosa rugosa on diabetic oxidative stress were investigated using rats with streptozotocin (STZ)-induced diabetes. The diabetic rats showed less body weight gain and heavier kidney and liver weights than normal rats, while the oral administration of Rosa rugosa at a dose of 100 or 200 mg/kg body weight/day for 20 days attenuated the physiological changes induced by diabetes. In addition, administrating Rosa rugosa to diabetic rats resulted in significant and dose-dependent decreases in the serum glucose and glycosylated protein levels, implying that Rosa rugosa improves the abnormal glucose metabolism that leads to oxidative stress. Diabetic rats had higher serum levels of superoxide and nitrite/nitrate. However, the administration of Rosa rugosa dose-dependently reduced the over-production of radicals associated with diabetes, suggesting Rosa rugosa is a radical scavenger that would play a crucial role in protecting against diabetic oxidative stress. Rosa rugosa significantly and dose-dependently reduced thiobarbituric acid-reactive substance levels in serum, hepatic and renal mitochondria, implying that Rosa rugosa would alleviate the oxidative stress associated with diabetes by inhibiting lipid peroxidation. This study provides evidence that Rosa rugosa has potential as a treatment for diabetes through attenuating oxidative stress induced by the diabetic condition

Comparison of the Effects of Korean Ginseng and Heat-Processed Korean Ginseng on Diabetic Oxidative Stress

2008 ◽  
Vol 36 (05) ◽  
pp. 989-1004 ◽  
Author(s):  
Hyun Young Kim ◽  
Ki Sung Kang ◽  
Noriko Yamabe ◽  
Takako Yokozawa
Keyword(s):  
Oxidative Stress ◽  
Diabetic Nephropathy ◽  
Renal Damage ◽  
Advanced Glycation Endproducts ◽  
Diabetic Rats ◽  
Heat Processing ◽  
Diabetic Rat ◽  
Thiobarbituric Acid Reactive Substance ◽  
Pathological Conditions ◽  
Korean Ginseng

To investigate the effects of Korean ginseng (KG, Panax ginseng C.A. Meyer) and heat-processed Korean ginseng (H-KG) on diabetic renal damage, we used the streptozotocin-induced diabetic rat model in this study. The diabetes-induced physiological abnormalities at early-stage were attenuated by KG or H-KG administration through reducing the blood glucose level and improving renal function. The oxidative stress-induced increases in serum and renal thiobarbituric acid-reactive substance levels were significantly reduced by KG and H-KG administrations. Moreover, the protein expressions related to oxidative stress and advanced glycation endproducts were significantly reduced in diabetic rats and/or not significantly increased compared to normal rats by KG or H-KG administration. All of these beneficial effects of H-KG in diabetic rats were stronger than those of KG. Therefore, KG and H-KG may improve diabetic pathological conditions and prevent renal damage associated with diabetic nephropathy, and these protective effects of KG can be improved by heat-processing. This study provides scientific evidence that H-KG may be a potential therapeutic agent for pathological conditions associated with diabetic complications including diabetic nephropathy.

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