Effect of aqueous extract of Aegle marmelos fruit and leaf on glycemic, insulinemic and lipidemic status of type 2 diabetic model rats

2017 ◽  
Vol 14 (2) ◽  
Author(s):  
Sonchita R. Mudi ◽  
Masfida Akhter ◽  
Subrata K. Biswas ◽  
Mohammad A. Muttalib ◽  
Subhagata Choudhury ◽  
...  
Keyword(s):  
Cell Function ◽  
Indian Subcontinent ◽  
Serum Insulin ◽  
Treated Group ◽  
Diabetic Rats ◽  
Control Group ◽  
Aqueous Extracts ◽  
Type 2 Dm ◽  
Type 2 Diabetic

AbstractBackgroundis a popular fruit plant in the Indian subcontinent, various parts of which are traditionally used against various illnesses including diabetes mellitus (DM). However, the underlying mechanisms of the antidiabetic effects of the plant are not clear, especially in type 2 DM. The present study was undertaken to investigate the effect of aqueous extracts ofMethodsAn interventional study was designed using 20 type 2 diabetic rats. Type 2 DM was induced in Long Evans rats by a single intra-peritoneal injection of streptozotocin (90 mg/kg body weight) to 48 h old pups. Three months after induction of diabetes, the rats were divided into three independent groups: water-treated control group (n=6), AMLE-treated group (n=7) and AMFE-treated group (n=7). The rats were fed with extracts or water for 21 consecutive days and blood samples were collected at days 0 and 21 after an overnight fast. Data were expressed as mean±SD and analyzed by paired t-test or ANOVA as appropriate.ResultsThere were significantly lower blood glucose values in AMLE and AMFE groups at Endpoint compared to Baseline (mmol/l, mean±SD, Baseline vs. Endpoint, 7.04±1.0 vs. 6.06±0.92; p=0.032 and 7.04±0.97 vs. 5.87±0.93; p=0.047). There were also significantly lower serum insulin levels in AMLE and AMFE groups at Endpoint compared to Baseline (µIU/mL, mean±SD, Baseline vs. Endpoint, 14.02±5.48 vs. 7.57±2.90; p=0.026 and 11.54±4.83 vs. 6.58±4.36; p=0.008). Insulin resistance (HOMA-IR) was significantly improved both in AMLE and AMFE groups at Endpoint compared to Baseline (mean±SD, Baseline vs. Endpoint, 4.22±1.68 vs. 2.05±0.90; p=0.021 and 3.69±1.79 vs. 1.69±1.61; p=0.013). However, β-cell function or lipid profile did not show any significant alteration at Endpoint compared to Baseline in AMLE and AMFE groups.ConclusionsAqueous extracts of

scholarly journals Hypoglycemic effect of Irvingia gabonensis (Aubry-Lacomate Ex. Ororke), Baill in Type 2 Diabetic Long-Evans Rats

2012 ◽  
Vol 11 (1) ◽  
pp. 19-24 ◽  
Author(s):  
M S Hossain ◽  
S Sokeng ◽  
M Shoeb ◽  
K Hasan ◽  
M Mosihuzzaman ◽  
...  
Keyword(s):  
Glucose Level ◽  
Serum Insulin ◽  
Liver Glycogen ◽  
Treated Group ◽  
Serum Glucose ◽  
Diabetic Rats ◽  
Bush Mango ◽  
Irvingia Gabonensis ◽  
Type 2 Diabetic

Irvingia gabonensis (Aubry-Lacomate Ex. Ororke), Baill (African wild mango/bush mango) seeds are   widely used in cooking as a sauce in Cameroon and in most parts of tropical Africa for the treatment of a number of ailments. In this study normal rat food was incorporated with I. gabonensis seed powder (10%) and oil free seed powder (5%) and their chronic effects on streptozotocin induced Type 2 diabetic rats were studied. Oral consumption of food incorporated with seed powder significantly reduced serum glucose level on the 28th day (p<0.01) which was   comparable with glibenclamide treated group. Food with oil free seed powder showed 24% fall in glucose level on the 28th day. Fasting serum insulin increased significantly (p<0.001) in glibenclamide and oil free seed powder treated (p<0.008) groups. No effect was observed in the seed powder treated group. Liver glycogen content increased in the glibenclamide treated group but no significant change was observed in both powder and oil free seed powder   treated groups. On the 28th day seed powder treated group significantly lowered serum TG level (p<0.033) and 48% was lowered by oil free seed powder. It is concluded that seed powder as well as oil free seed powder lowered blood glucose level in Type 2 diabetic model rats. It seems to act as an insulinomimetic and/or insulin sensitizing agent. DOI: http://dx.doi.org/10.3329/dujps.v11i1.12482 Dhaka Univ. J. Pharm. Sci. 11(1): 19-24, 2012 (June)

Blockade of Renin Angiotensin System Ameliorates the Cardiac Arrhythmias and Sympathetic Neural Remodeling in Hearts of Type 2 DM Rat Model

2020 ◽  
Vol 20 (3) ◽  
pp. 464-478 ◽  
Author(s):  
Yomna M. Yehya ◽  
Abdelaziz M. Hussein ◽  
Khaled Ezam ◽  
Elsayed A. Eid ◽  
Eman M. Ibrahim ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Cardiac Arrhythmias ◽  
Sympathetic Nerve ◽  
Renin Angiotensin System ◽  
Diabetic Rats ◽  
Angiotensin System ◽  
Type 2 Dm ◽  
Type 2 Diabetic ◽  
Diabetes Induction

Objectives:: The present study was designed to investigate the effects of renin angiotensin system (RAS) blockade on cardiac arrhythmias and sympathetic nerve remodelling in heart tissues of type 2 diabetic rats. Methods:: Thirty-two male Sprague Dawley rats were randomly allocated into 4 equal groups; a) normal control group: normal rats, b) DM group; after type 2 diabetes induction, rats received 2ml oral saline daily for 4 weeks, c) DM+ ACEi: after type 2 diabetes induction, rats were treated with enalapril (10 mg/kg, orally for 4 weeks) and d) DM+ ARBs: after type 2 diabetes induction, rats were treated with losartan (30 mg/kg, orally for 4 weeks). Results:: In type 2 diabetic rats, the results demonstrated significant prolongation in Q-T interval and elevation of blood sugar, HOMA-IR index, TC, TGs, LDL, serum CK-MB, myocardial damage, myocardial MDA, myocardial norepinephrine and tyrosine hydroxylase (TH) density with significant reduction in serum HDL, serum insulin and myocardial GSH and CAT. On the other hand, blockade of RAS at the level of either ACE by enalapril or angiotensin (Ag) receptors by losartan resulted in significant improvement in ECG parameters (Q-T), cardiac enzymes (CK-MB), cardiac morphology, myocardial oxidative stress (low MDA, high CAT and GSH) and myocardial TH density. Conclusions:: RAS plays a role in the cardiac sympathetic nerve sprouting and cardiac arrhythmias induced by type 2 DM and its blockade might have a cardioprotective effect via attenuation of sympathetic nerve fibres remodelling, myocardial norepinephrine contents and oxidative stress.

Exercise and Stevia Rebaudiana (R) Extracts Attenuate Diabetic Cardiomyopathy in Type 2 Diabetic Rats: Possible Underlying Mechanisms

2020 ◽  
Vol 20 (7) ◽  
pp. 1117-1132
Author(s):  
Abdelaziz M. Hussein ◽  
Elsayed A. Eid ◽  
Ismaeel Bin-Jaliah ◽  
Medhat Taha ◽  
Lashin S. Lashin
Keyword(s):  
Oxidative Stress ◽  
Blood Glucose ◽  
Diabetic Cardiomyopathy ◽  
Caspase 3 ◽  
Stevia Rebaudiana ◽  
Diabetic Rats ◽  
Control Group ◽  
Underlying Mechanisms ◽  
Type 2 Diabetic

Background and Aims: In the current work, we studied the effects of exercise and stevia rebaudiana (R) extracts on diabetic cardiomyopathy (DCM) in type 2 diabetic rats and their possible underlying mechanisms. Methods: : Thirty-two male Sprague Dawley rats were randomly allocated into 4 equal groups; a) normal control group, b) DM group, type 2 diabetic rats received 2 ml oral saline daily for 4 weeks, c) DM+ Exercise, type 2 diabetic rats were treated with exercise for 4 weeks and d) DM+ stevia R extracts: type 2 diabetic rats received methanolic stevia R extracts. By the end of the experiment, serum blood glucose, HOMA-IR, insulin and cardiac enzymes (LDH, CK-MB), cardiac histopathology, oxidative stress markers (MDA, GSH and CAT), myocardial fibrosis by Masson trichrome, the expression of p53, caspase-3, α-SMA and tyrosine hydroxylase (TH) by immunostaining in myocardial tissues were measured. Results: T2DM caused a significant increase in blood glucose, HOMA-IR index, serum CK-MB and LDH, myocardial damage and fibrosis, myocardial MDA, myocardial α-SMA, p53, caspase-3, Nrf2 and TH density with a significant decrease in serum insulin and myocardial GSH and CAT (p< 0.05). On the other hand, treatment with either exercise or stevia R extracts significantly improved all studied parameters (p< 0.05). Moreover, the effects of stevia R was more significant than exercise (p< 0.05). Conclusion: Both exercise and methanolic stevia R extracts showed cardioprotective effects against DCM and Stevia R offered more cardioprotective than exercise. This cardioprotective effect of these lines of treatment might be due to attenuation of oxidative stress, apoptosis, sympathetic nerve density and fibrosis and upregulation of the antioxidant transcription factor, Nrf2.

Acute regulation of pancreatic islet microcirculation and glycaemia by telmisartan and ramipril: discordant effects between normal and Type 2 diabetic rats

2013 ◽  
Vol 125 (9) ◽  
pp. 433-438 ◽  
Author(s):  
Anna Olverling ◽  
Zhen Huang ◽  
Thomas Nyström ◽  
Åke Sjöholm
Keyword(s):  
Blood Flow ◽  
Insulin Secretion ◽  
Wistar Rats ◽  
Serum Insulin ◽  
Diabetic Rats ◽  
Angiotensin Receptor ◽  
Angiotensin Receptor Antagonist ◽  
Type 2 Diabetic

Diabetic patients are often treated with an ACEi (angiotensin-converting enzyme inhibitor) or angiotensin receptor antagonist against hypertension or albuminuria. These drugs also have a positive impact on glucose tolerance, but the mechanism for this remains elusive. Hypothesizing a positive non-additive effect, we studied whether the angiotensin receptor antagonist telmisartan or the ACEi ramipril acutely influence insulin secretion and glycaemia in vivo in healthy and Type 2 diabetic rats through effects on islet blood perfusion. Telmisartan and ramipril were injected intravenously into anaesthetized non-diabetic Wistar rats or Type 2 diabetic GK (Goto–Kakizaki) rats. In non-diabetic Wistar rats, neither whole PBF (pancreatic blood flow) nor IBF (islet blood flow) were significantly influenced by telmisartan and ramipril, alone or in combination. Renal blood flow was enhanced significantly by telmisartan and ramipril when used in combination, whereas ABF (adrenal blood flow) was not affected by any of the drugs. Telmisartan and ramipril both significantly increased serum insulin levels, but did not influence glycaemia. In Type 2 diabetic GK rats, both whole PBF and IBF were significantly decreased by telmisartan and ramipril, but only when used in combination. Renal blood flow was enhanced significantly by telmisartan and ramipril alone, but not when used in combination, whereas ABF was not affected by any of the drugs. Telmisartan and ramipril both significantly decreased serum insulin levels, and non-additively elevated blood glucose levels. In conclusion, the present study suggests that a local pancreatic RAS (renin–angiotensin system), sensitive to acute administration of telmisartan and ramipril, controls pancreatic IBF and insulin secretion and thereby has an impact on glucose tolerance. Our findings indicate unexpected significant differences in the effects of these agents on islet microcirculation, in vivo insulin secretion and glycaemia between healthy and Type 2 diabetic rats.

scholarly journals Effect of Diabetes Mellitus and Its Control on Myocardial Contractile Function in Rats

2014 ◽  
Vol 2 (3) ◽  
pp. 431-438
Author(s):  
Bassem M. Alsawy ◽  
Magdi A. El-Damarawi
Keyword(s):  
Blood Glucose ◽  
Thyroid Hormones ◽  
Diabetic Rats ◽  
Control Group ◽  
Myocardial Performance ◽  
Performance Parameters ◽  
Type 2 Dm ◽  
Glucose Plasma

AIM: This work was done to study the effect of both types of diabetes mellitus (DM) on myocardial contractility in rats. Also, we investigated the role of treatment of DM with insulin and rosiglitazone (used as treatment for type 1 and type 2 DM respectively) in improvement of myocardial dysfunction in diabetic rats.METHODS: The study included 50 male Wistar albino rats, divided into 5 groups: control (group I), streptozotocin induced type 1 DM (group II), fructose induced type 2 DM (group III), insulin treated type 1 diabetic rats (group IV) and rosiglitazone treated type 2 diabetic rats (group V). At the end of the study, retro-orbital blood samples were withdrawn and blood glucose, plasma triglyceride (TG), total cholesterol (TC) and thyroid hormones levels were measured. Rats were then anesthetized and their hearts were excised and connected to Langendorff apparatus to perform mechanical cardiac performance tests including heart rate (HR), left ventricular developed pressure (LVDP) and maximum rate of pressure rise (+dp/dt).RESULTS: Data of the study showed that relative to control group, there was significant increase in blood glucose, plasma TG and TC levels while, thyroid hormones and myocardial performance parameters showed significant decrease in both type 1 and type 2 diabetic rats. Treatment of type 1 diabetic rats with insulin and type 2 with rosiglitazone resulted in significant decrease in blood glucose, plasma TG and TC levels associated with significant improvement in thyroid hormones and myocardial performance parameters. The results also showed that insulin treatment of type 1 was more effective in ameliorating all parameters than treatment of type 2 by rosiglitazone.CONCLUSION: We concluded that the induction of both types of diabetes resulted in decreased myocardial performance parameters. The  treatment of type 1 and type 2 diabetes by insulin and oral rosiglitazone respectively improved to a great extent the altered metabolism and  mechanical myocardial parameters, with more improving effect of  insulin in type 1 than rosiglitazone in type 2 DM.

scholarly journals Effect of Hydrolyzed Bird’s Nest on β-Cell Function and Insulin Signaling in Type 2 Diabetic Mice

2021 ◽  
Vol 12 ◽  
Author(s):  
Ker Woon Choy ◽  
Zuhaida Md Zain ◽  
Dharmani Devi Murugan ◽  
Nelli Giribabu ◽  
Nor Hisam Zamakshshari ◽  
...  
Keyword(s):  
Insulin Signaling ◽  
Cell Function ◽  
Serum Insulin ◽  
Fasting Blood Glucose ◽  
Diabetic Mice ◽  
Β Cell ◽  
Β Cell Function ◽  
Type 2 Diabetic ◽  
Pro Inflammatory Cytokines

Type 2 diabetes mellitus is characterized by both resistance to the action of insulin and defects in insulin secretion. Bird’s nest, which is derived from the saliva of swiftlets are well known to possess multiple health benefits dating back to Imperial China. However, it’s effect on diabetes mellitus and influence on the actions of insulin action remains to be investigated. In the present study, the effect of standardized aqueous extract of hydrolyzed edible bird nest (HBN) on metabolic characteristics and insulin signaling pathway in pancreas, liver and skeletal muscle of db/db, a type 2 diabetic mice model was investigated. Male db/db diabetic and its euglycemic control, C57BL/6J mice were administered HBN (75 and 150 mg/kg) or glibenclamide (1 mg/kg) orally for 28 days. Metabolic parameters were evaluated by measuring fasting blood glucose, serum insulin and oral glucose tolerance test (OGTT). Insulin signaling and activation of inflammatory pathways in liver, adipose, pancreas and muscle tissue were evaluated by Western blotting and immunohistochemistry. Pro-inflammatory cytokines were measured in the serum at the end of the treatment. The results showed that db/db mice treated with HBN significantly reversed the elevated fasting blood glucose, serum insulin, serum pro-inflammatory cytokines levels and the impaired OGTT without affecting the body weight of the mice in all groups. Furthermore, HBN treatment significantly ameliorated pathological changes and increased the protein expression of insulin, and glucose transporters in the pancreatic islets (GLUT-2), liver and skeletal muscle (GLUT-4). Likewise, the Western blots analysis denotes improved insulin signaling and antioxidant enzyme, decreased reactive oxygen species producing enzymes and inflammatory molecules in the liver and adipose tissues of HBN treated diabetic mice. These results suggest that HBN improves β-cell function and insulin signaling by attenuation of oxidative stress mediated chronic inflammation in the type 2 diabetic mice.

scholarly journals Perbaikan Sensitivitas Insulin Diabetes Melitus Tipe 2 oleh Media Terkondisi Sel Punca Mesensimal

PRAXIS ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 180
Author(s):  
Bernadia Branitamahisi
Keyword(s):  
Insulin Sensitivity ◽  
T Test ◽  
Diabetic Rat ◽  
Control Group ◽  
Sprague Dawley ◽  
Type 2 Dm ◽  
Significant Difference ◽  
Type 2 Diabetic ◽  
Diabetes Melitus

Abstract: Type 2 diabetes mellitus is the highest prevalence among diabetes types, but there is no treatment that overcome obstacle in the process of surgery, rejection reactions, and increased complications that occur. The aim of this study was to investigate the insulin sensitivity improvement by Mesenchymal Stem Cell-Conditioned Medium(MSC-CM) through increased IRS-1 tyrosine phosphorylation (IRS-1tyr612) on the type 2 diabetic rat with and without treatment. This experimental study is purely laboratory Posttest Control Group using male Sprague Dawley rat, 7 weeks old and 150-200gram weight. Rat is divided into 3 research groups, K(-): normal control; K(+): diabetic control; P:treatment, type 2 DM rat+MSC-CM 0,1ml/200gBW ip. Giving MSC-CM is done every 3 days 10 times. On day 30 after therapy, an IRS-1tyr612 expression analysis was performed with skeletal muscle immunohistochemistry (IHC). Data analysis was performed by Kruskal-Wallis and Independent Sample T-test at 95% significance. Percentage of positive score of IRS-1tyr612 expression K(-)(75%)> P(62,5%)> K(+)(12,5%). Average expression of IRS-1tyr612 P(45,46±9,15)> K(-)(44,41±4,61)> K(+)(21,29±3,49) with significant difference of K(-)-K(+) and P-K(+). Giving MSC-CM may increase the expression of IRS-1tyr612 on type 2 diabetic animal model rat. Keywords: MSC-CM, insulin sensitivity, IRS-1tyr612, type 2 DM Abstrak: Diabetes melitus tipe 2 merupakan tipe diabetes dengan prevalensi tertinggi, namun belum ada pengobatan yang dapat mengatasi hambatan dalam proses operasi, reaksi rejeksi, dan banyaknya komplikasi yang terjadi. Penelitian ini bertujuan untuk mengetahui perbaikan sensitivitas insulin oleh Media Terkondisi Sel Punca Mesensimal (MT-SPM) melalui peningkatan fosforilasi tirosin 612 IRS-1(IRS-1tyr612) pada tikus model DM tipe 2 dengan dan tanpa terapi. Penelitian ini eksperimental murni laboratorium Posttest Control Group menggunakan hewan uji tikus Sprague Dawley jantan usia 7 minggu dan berat badan 150-200gram. Tikus dibagi menjadi 3 kelompok penelitian, yaitu K(-): kontrol normal; K(+): kontrol diabetik; P: perlakuan, tikus DM tipe 2 + MT-SPM 0,1ml/200g bb ip. Pemberian MT-SPM dilakukan setiap 3 hari sebanyak 10 kali. Pada hari ke-30 setelah terapi, dilakukan analisis ekspresi IRS-1tyr612 dengan IHC otot skelet. Analisis data dilakukan dengan Independent Sample T-test dan Kruskal Wallis pada signifikansi 95%. Prosentase skor positif ekspresi IRS-1tyr612 K(-)(75%) > P(62,5%) > K(+)(12,5%). Rerata ekspresi IRS-1tyr612 P(45,46±9,15) > K(-)(44,41±4,61) > K(+)(21,29±3,49) dengan perbedaan yang bermakna secara statistik pada K(-)–K(+) dan P–K(+). Pemberian MTSPM dapat meningkatkan ekspresi IRS-1tyr612 pada tikus model DM tipe 2. Kata kunci: MT-SPM, sensitivitas insulin, IRS-1tyr612,DM tipe 2

scholarly journals Effect of omega-3 fatty acid supplementation on serum fasting glucose and HbA1c levels in type-2 Diabetes Mellitus

2019 ◽  
Vol 14 (1) ◽  
pp. 33-37
Author(s):  
Tamanna Binte Habib ◽  
Qazi Shamima Akhter
Keyword(s):  
Fatty Acid ◽  
Diabetic Patient ◽  
Control Group ◽  
Diabetic Patients ◽  
Omega 3 ◽  
Omega 3 Fatty Acid ◽  
Type 2 Dm ◽  
Type 2 Diabetic ◽  
Hba1c Levels

Background: Diabetes Mellitus (DM) is a major non-communicable health problem that have effects on glycemic status. Oral omega-3 fatty acid supplementation may improve glycemic status in diabetic patient. Objective: To observe the effect of supplementation of omega-3 fatty acid on fasting serum glucose (FSG) and glycosylated hemoglobin (HbA1c) levels in type 2 DM. Methods: This prospective interventional study was conducted from January 2017 to December 2017. A total numbers of 52 diagnosed type 2 diabetic patients(type-2 DM) of both sexes were selected with age 40 to 50 years. Among them, 27 type 2 diabetic patient with supplementation of omega 3 fatty acid (2g/day) for 12 weeks was considered as study group. Another 25 type 2 diabetic patients without supplementation of omega 3 fatty acid was considered as control group. The study subjects were selected from Outpatient Department of Endocrinology, Dhaka Medical College Hospital, Dhaka and personal contact from Dhaka city. FSG was estimated by enzymatic colorimetric method and HbA1c was estimated by turbidimetric inhibition immunoassay method. The study parameters were measured at base line and after 12 weeks of study period in both groups. For statistical analysis, Student’s paired ‘t’ test and Student’s unpaired ‘t’ test were performed as applicable using SPSS for windows version 16.0. Results: In this study serum FSG and HbA1c levels were significantly lower (p<.001) in diabetic patients after supplementation with omega-3 fatty acid in comparison to that of their baseline value. Again, after 12 weeks, FSG and HbA1c levels significantly decreased (p<.001) in omega-3 fatty acid supplemented diabetic patients compared to control group. In control group, there was no significant change in FSG and HbA1c levels between baseline and after 3 months of follow-up. Conclusion: From the results of the study, it can be concluded that omega-3 fatty acid may improve serum FSG and HbA1c levels in type 2 diabetic patient and may be helpful to minimize the complications of type-2 DM. J Bangladesh Soc Physiol. 2019, June; 14(1): 33-37

Sign in / Sign up

Export Citation Format

Share Document