scholarly journals Antihyperglycemic Activity ofHouttuynia cordataThunb. in Streptozotocin-Induced Diabetic Rats

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Manish Kumar ◽  
Satyendra K. Prasad ◽  
Sairam Krishnamurthy ◽  
Siva Hemalatha
Keyword(s):  
Caspase 3 ◽  
Expression Patterns ◽  
Insulin Level ◽  
Diabetic Rats ◽  
Antidiabetic Activity ◽  
Houttuynia Cordata ◽  
Glut 4 ◽  
North Eastern ◽  
Protein Expressions ◽  
Plausible Mechanism

Present study is an attempt to investigate plausible mechanism involved behind antidiabetic activity of standardizedHouttuynia cordataThunb. extract in streptozotocin-induced diabetic rats. The plant is used as a medicinal salad for lowering blood sugar level in North-Eastern parts of India. Oral administration of extract at 200 and 400 mg/kg dose level daily for 21 days showed a significant (P<0.05) decrease in fasting plasma glucose and also elevated insulin level in streptozotocin-induced diabetic rats. It also significantly reversed all the alterations in biochemical parameters, that is, total lipid profile, blood urea, creatinine, protein, and antioxidant enzymes in liver, pancreas, and adipose tissue of diabetic rats. Furthermore, we have demonstrated that the extract significantly reversed the expression patterns of various glucose homeostatic enzyme genes like GLUT-2, GLUT-4, and caspase-3 levels but did not show any significant effect on PPAR-γprotein expressions. Additionally, the extract positively regulated mitochondrial membrane potential and succinate dehydrogenase (SDH) activity in diabetic rats. The findings justified the antidiabetic effect ofH. cordatawhich is attributed to an upregulation of GLUT-4 and potential antioxidant activity, which may play beneficial role in resolving complication associated with diabetes.

scholarly journals Allopurinol ameliorates liver injury in type 1 diabetic rats through activating Nrf2

2021 ◽  
Vol 35 ◽  
pp. 205873842110314
Author(s):  
Fei Zeng ◽  
Jierong Luo ◽  
Hong Han ◽  
Wenjie Xie ◽  
Lingzhi Wang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Liver Injury ◽  
Caspase 3 ◽  
Serum Levels ◽  
Diabetic Rats ◽  
Heme Oxygenase 1 ◽  
Liver Protein ◽  
Lipid Peroxidation Product ◽  
Protein Expressions

Hyperglycemia-induced oxidative stress plays important roles in the development of non-alcoholic fatty liver disease (NAFLD), which is a common complication in diabetic patients. The Nrf2-Keap1 pathway is important for cell antioxidant protection, while its role in exogenous antioxidant mediated protection against NAFLD is unclear. We thus, postulated that antioxidant treatment with allopurinol (ALP) may attenuate diabetic liver injury and explored the underlying mechanisms. Control (C) and streptozotocin (STZ)-induced diabetes rats (D) were untreated or treated with ALP for 4 weeks starting at 1 week after diabetes induction. Serum levels of alanine aminotransferase (ALT) and aspartate transaminase (AST), production of lipid peroxidation product malondialdehyde (MDA), and serum superoxide dismutase (SOD) were detected. Liver protein expressions of cleaved-caspase 3, IL-1β, nuclear factor-erythroid-2-related factor-2 (Nrf2), heme oxygenase-1 (HO-1), P62, Kelch-like ECH-associated protein 1 (Keap1), and LC3 were analyzed. In vitro, cultured rat normal hepatocytes BRL-3A were grouped to normal glucose (5.5 mM, NG) or high glucose (25 mM, HG) and treated with or without allopurinol (100 µM) for 48 h. Rats in the D group demonstrated liver injury evidenced as increased serum levels of ALT and AST. Diabetes increased apoptotic cell death, enhanced liver protein expressions of cleaved-caspase 3 and IL-1β with concomitantly increased production of MDA while serum SOD content was significantly reduced (all P < 0.05 vs C). In the meantime, protein levels of Nrf2, HO-1, and P62 were reduced while Keap1 and LC3 were increased in the untreated D group as compared to control ( P < 0.05 vs C). And all the above alterations were significantly attenuated by ALP. Similar to our findings obtained from in vivo study, we got the same results in in vitro experiments. It is concluded that ALP activates the Nrf2/p62 pathway to ameliorate oxidative stress and liver injury in diabetic rats.

scholarly journals Antidiabetic and anti-obesity acylated flavonol diglucoside from Ammannia baccifera L. subsp. aegyptiaca (Willd.) Koehne Waste

2020 ◽  
Author(s):  
Noha Swilam ◽  
Mahmoud Nawwar ◽  
Rasha Radwan ◽  
Eman Mostafa
Keyword(s):  
Binding Free Energy ◽  
Reducing Power ◽  
Ethanol Extract ◽  
Insulin Level ◽  
Diabetic Rats ◽  
High Serum ◽  
Antidiabetic Activity ◽  
Active Site Residues ◽  
Sod Activity ◽  
Aerial Parts

Abstract Chemical investigation of the aerial parts of Ammania aegyptiaca ethanol extract (AEEE) revealed significant high concentrations of polyphenols and flavonoids content with notable antioxidant activity in DPPH, ORAC, and reducing power assay. New acylated diglucoside flavonol myricetin 3-O-β-4­C1-(6"-O-galloyl glucopyranoside) 7-O-β-4C1-glucopyranoside (MGGG) was isolated from aerial parts of AEEE along with four additional known phenolics, not characterized previously from AEEE. Moreover, powerful inhibitory effects of MGGG, AEEE, and all isolates against α-amylase, pancreatic lipase and β-glucosidase, were assessed. In addition, flexible molecular docking was used to reveal the inhibition towards digestive enzymes and confirmed that the MGGG interacted strongly with the active site residues of these enzymes with the highest binding free energy against β-glucosidase (DG=-8.98 kcal/mol) compared to the commercial drug Acarbose, thus justifying its dual management of diabetes and obesity. In streptozotocin (STZ) induced diabetic rats, AEEE significantly decreased high serum glucose, α-amylase activity, liver and kidney function markers and increased insulin level. Moreover, it improved lipid profile due to diabetes with increased SOD activity and inhibited of TBARS formation. Consequently, AEEE and MGGG are found useful in controlling the secondary complications associated with type 2 diabetes mellitus. Histopathological studies proved the decrease in the pancreas damage and agreed with the biochemical findings. These results provide evidence that AEEE and MGGG have potent antidiabetic activity, which warrants additional investigations.

scholarly journals Extracts of Guiera senegalensis J.F. Gmel (Combretaceae) Galls Ameliorates Streptozotocin-Induced Diabetes Mellitus Rats Status

2019 ◽  
pp. 1-11
Author(s):  
Pierre Alexandre Eric Djifaby Sombié ◽  
Rahman Hafizur ◽  
Martin Kiendrébéogo ◽  
Muhammad Iqbal Choudhary ◽  
Odile Germaine Nacoulma
Keyword(s):  
Blood Glucose ◽  
Blood Glucose Level ◽  
Antioxidant Status ◽  
Wistar Rats ◽  
Methanol Extract ◽  
Insulin Level ◽  
Diabetic Rats ◽  
Antidiabetic Activity ◽  
Guiera Senegalensis

Background: A good number of medicinal and dietary plants are used for diabetes treatment in Burkina Faso. Aim of the Study: The present study aimed to investigate the antidiabetic activity of Guiera senegalensis galls extracts and its potential mechanisms in streptozotocin-induced diabetic rats. Methodology: The methanol extract was administered by gavage to healthy Wistar rats for the determination of toxicity, to normal and diabetic Wistar rats for the determination of glucose reduction level, lipid profile, insulin level and glycaemic parameters in serum. The histology and immunohistochemistry of the pancreas were also determined. Results: The acute toxicity results showed that the medium lethal dose (LD50) of the methanol galls extract of Guiera senegalensis is greater than 2000 mg/kg body weight in rats. Guiera senegalensis methanolic extract (250 mg/kg) and the tolbutamide (100 mg/kg) recorded a significantly (p < 0.05) lower level of triglyceride compared to the diabetic group. The methanol extract (250 and 500 mg/kg pc) significantly (p < 0.05) decreased the blood glucose level and increased the serum insulin level in diabetic rats. Interestingly, improved ß-cell function and antioxidant status were also observed in G. senegalensis-treated diabetic rats when compared to tolbutamide-treated diabetic rats. Conclusion: These data showed direct evidence that G. senegalensis has antidiabetic activity by decreasing blood glucose level, improving insulin secretion and β-cell functions and modulating antioxidant status.

scholarly journals An antioxidant activity of Cinnamonum tamala improves histopathological alterations and biochemical parameters in alloxan induced diabetic rats

2019 ◽  
Vol 10 (6) ◽  
pp. 50-56 ◽  
Author(s):  
Mamata Laxmikant Pochhi
Keyword(s):  
Serum Insulin ◽  
Glycosylated Hemoglobin ◽  
Antioxidant Properties ◽  
Insulin Level ◽  
Diabetic Control ◽  
Protective Role ◽  
Diabetic Rats ◽  
Antidiabetic Activity ◽  
Standard Drug ◽  
Cinnamomum Tamala

Background: Diabetic mellitus is a multifactorial disorder associated with its devastating consequences has assumed epidemic proportion. Diabetes mellitus (DM) is a global health problem and the incidence of DM is increasing at alarming rate all over the world. Many Indian medicinal plants have been reported to possess potential antidiabetic activity and could play important role in the management of diabetes with less adverse effects. Aims and Objectives: The main objective of this study was to focus on the anti-diabetic activity of Cinnamomum tamala, with special reference to its curative and protective role in alloxan induced diabetic rats. Attempts were further made to study the antioxidant properties of C. tamala leaves. Materials and Methods: The diabetic rats were administered orally with the aqueous leaves extracts of Cinnamonum tamala (250 mg/kg) for 30 days. The results were compared with standard drug Tolbutamide. Result: The alloxan treated diabetic control rats showed a significant increase in the plasma glucose, glycosylated hemoglobin (HbA1C), glucose-6-phosphatase, aldolase, LDH, ALT, AST, ALP and GGT activity, freeradicals formation with a concomitant decrease in glycogen content in the liver and serum insulin level and phosphoglucoisomerase and hexokinase activity in tissues as compared to normal control rats. Oral administration of C. tamala extract for 30 days showed significant result as compared to Tolbutamide and diabetic control rats. Conclusion: On the basis of above findings it can be concluded that extracts of C. tamala to alloxan induced diabetic rats showed significant positive changes in the biochemical and histopathological parametersrelated to carbohydrate and protein metabolism.

Antidiabetic activity of Tephrosia tinctoria in Alloxan induced Diabetic Rats: A Preliminary Study

2021 ◽  
pp. 3727-3732
Author(s):  
Vimal John Samuel ◽  
Rashmi DV ◽  
Agasa Ramu Mahesh
Keyword(s):  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Insulin Level ◽  
Diabetic Rats ◽  
Vital Role ◽  
Antidiabetic Activity ◽  
Protective Effects ◽  
Standard Drug ◽  
Anti Oxidant ◽  
Histopathological Studies

Plant derived products play a vital role in preventing and treating various disease in humans. Tephrosia tinctoria is a plant belonging to the family Leguminosae, found to have antidiabetic and antioxidant activities. The study was aimed to investigate the anti-diabetic and anti-oxidant activity of whole plant of Tephrosia tinctoria in diabetic rats. Alloxan induced model was used to induce Diabetes. The chloroform and ethanolic extracts of Tephrosia tinctoria (CETT and EETT) at the dose of 250 and 500mg/kg b.w were administered orally at single dose per day to diabetic rats. Glipizide 5mg/kg b.w was used as standard drug. The general body weight, insulin level, blood glucose, serum lipid profile, superoxide dismutase, and lipid peroxidation assays were the parameters evaluated in diabetic rats. EETT have better anti-diabetic and anti-oxidant activity than CETT. The protective effects were even confirmed by histopathological studies. These observations show that both the extracts were effective in possessing the significant antidiabetic and antioxidant properties in alloxan induced diabetes.

scholarly journals Antidiabetic Effect ofSida cordatain Alloxan Induced Diabetic Rats

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Naseer Ali Shah ◽  
Muhammad Rashid Khan
Keyword(s):  
Oxidative Stress ◽  
Diabetes Mellitus ◽  
Insulin Level ◽  
Ethyl Acetate Fraction ◽  
Diabetic Rats ◽  
Antidiabetic Activity ◽  
High Density Lipoproteins ◽  
Antidiabetic Effect ◽  
Normal Glucose

Medicinal plants are efficient ameliorator of oxidative stress associated with diabetes mellitus. In this study, ethyl acetate fraction (SCEE) ofSida cordatawas investigated for scientific validation of its folk use in diabetes. Antidiabetic effect of SCEE was confirmed by antihyperglycemic activity in normal glucose loaded and diabetic glucose loaded animals as well as normal off feed animals. Confirmation of antidiabetic activity and toxicity ameliorative role ofS. cordatawas investigated in a chronic multiple dose treatment study of fifteen days. A single dose of alloxan (120 mg/kg) produced a decrease in insulin level, hyperglycemia, elevated total lipids, triglycerides, and cholesterol and decreased the high-density lipoproteins. Concurrent with these changes, there was an increase in the concentration of lipid peroxidation (TBARS), H2O2, and nitrite in pancreas, liver, and testis. This oxidative stress was related to a decrease in glutathione content (GSH) and antioxidant enzymes. Administration of SCEE for 15 days after diabetes induction ameliorated hyperglycemia, restored lipid profile, blunted the increase in TBARS, H2O2, and nitrite content, and stimulated the GSH production in the organs of alloxan-treated rats. We suggested that SCEE could be used as antidiabetic component in case of diabetes mellitus. This may be related to its antioxidative properties.

scholarly journals Antidiabetic and antihyperlipidemic effects of Dillenia indica (L.) leaves extract

2011 ◽  
Vol 47 (2) ◽  
pp. 373-378 ◽  
Author(s):  
Sunil Kumar ◽  
Vipin Kumar ◽  
Om Prakash
Keyword(s):  
Body Weight ◽  
Serum Insulin ◽  
Oral Treatment ◽  
Insulin Level ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Antidiabetic Activity ◽  
Control Group ◽  
Diabetic Control Group ◽  
Dillenia Indica

The present study was carried out to evaluate antidiabetic and antihyperlipidemic effects of Dillenia indica methanolic leaves extracts in streptozotocin induced diabetic Wistar rats by administering graded oral doses (250 and 500 mg/kg body weight) for 21 days. The extract showed significant antidiabetic activity (p<0.001). Furthermore, the decreased body weight of rats was significantly improved after extract treatments. Daily oral treatment with the extract for 21 days to diabetic rats, also resulted in significant reduction in serum cholesterol, triglycerides and serum transaminase levels but HDL-cholesterol level was found to be improved (p<0.001) as compared to the diabetic control group. The extract treatment also showed to enhance serum insulin level in diabetic rats as compared to the diabetic control group. In conclusion, D. indica leaf extract might be useful for diabetes mellitus management and other abnormalities associated with this metabolic disorder.

Effect of fermented cassava tuber on the gene expression of PI3K/Akt signaling and AMPK pathway in STZ-NA-induced diabetic rats

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Rio Jati Kusuma ◽  
Desty Ervira Puspaningtyas ◽  
Puspita Mardika Sari
Keyword(s):  
Gene Expression ◽  
Body Weight ◽  
Positive Control ◽  
Serum Glucose ◽  
Diabetic Rats ◽  
Antidiabetic Activity ◽  
Akt Pathway ◽  
Content Type ◽  
Glut 4 ◽  
Significant Difference

Purpose The downstream insulin signaling, such as phosphatidylinositol-3-kinase (PI3K)/protein kinase B (Akt) pathway, is an important step for skeletal glucose disposal through the translocation of glucose transporter (GLUT)-4. In addition, the master of energy regulator adenosine monophosphate-activated kinase (AMPK) is also involved in GLUT-4 translocation, independent from the PI3K/Akt pathway. Fermented cassava tuber or gatot is a traditional food from Indonesia with antihyperglycemic properties. However, the molecular mechanism leading to this effect is unclear. Therefore, this paper aims to evaluate whether the antidiabetic activity of gatot is through PI3K/Akt dependent or AMPK pathway. Design/methodology/approach Diabetes mellitus was induced in 20 male Wistar rats by intraperitoneal injection of 65 mg/kg body weight streptozotocin and 230 mg/kg body weight nicotinamide. Diabetic rats were randomly allocated into four groups; negative control, positive control (metformin 100 mg/kg body weight), fermented cassava diet replacing 50% of carbohydrate (FC-50) and 100% of carbohydrate (FC-100) in the diet. Serum glucose, insulin and lipid profile were analyzed before and after four weeks of intervention. Genes expression of PI3K subunit alpha, PI3K subunit beta, PI3K regulatory subunit, Akt and AMPK were analyzed using real time polymerase chain reaction (PCR). GLUT-4 protein expression was performed using immunohistochemistry. Findings There is a significant difference (p = 0.000) in serum glucose, insulin, total cholesterol, triglyceride, high density lipoprotein (HDL)-cholesterol and LDL-cholesterol between groups. Skeletal AMPK gene expression was higher and significantly different between FC-100 (p = 0.006) and healthy control groups. No significant difference was observed in the messenger ribonucleic acid (mRNA) expression of the PI3K/Akt pathway among groups. GLUT-4 expression was highly expressed in a positive control group followed by FC-100. Research limitations/implications This paper did not characterize the bioactive component that is responsible for increasing mRNA expression of AMPK. This paper also did not analyze the phosphorylation of PI3K/Akt and AMPK that are important in activating the protein. Originality/value To the best of the authors’ knowledge, this is the first study that showed the antidiabetic activity of traditional fermented food is through AMPK-dependent activity.

Anti-diabetic activity of diphenhydramine in diabetic rats

2020 ◽  
Vol 11 (4) ◽  
pp. 5067-5070
Author(s):  
Pang Jyh Chayng ◽  
Nurul Ain ◽  
Kaswandi Md Ambia ◽  
Rahim Md Noah
Keyword(s):  
Blood Glucose ◽  
Blood Glucose Level ◽  
Glucose Level ◽  
Fasting Blood Glucose ◽  
Insulin Level ◽  
Diabetic Rats ◽  
Group Iv ◽  
Diabetic Rat ◽  
Control Group ◽  
Group I

The purpose of this project is to study the anti-diabetic effect of on a diabetic rat model. A total of Twenty male Sprague rats were used and it randomly distributed into four groups which are Group I: , Group II: negative control, Group III: and Group IV: and . In diabetic model were induced with via injection at the dosage of 65mg/kg. and FBG (Fasting Blood Glucose) level of diabetic rats were assessed every three days. Blood was collected via cardiac puncture at day 21 after the induction of treatment. Insulin level of the rats was assessed with the Mercodia Rat Insulin ELISA kit. FBG level of group I (12.16 ±3.96, p&lt;0.05) and group IV (11.34 ±3.67, p&lt;0.05) were significantly decreased. Meanwhile, the for all rats did not show any significant increase. However, the insulin level was escalated in group IV (0.74+0.25, p&lt;0.05) significantly. The present study shows that the and the combination of and lowered blood glucose level and enhanced insulin secretion.

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