scholarly journals Hypoglycaemic and hypolipidaemic activities of water extract of Lagerstroemia speciosa (L.) Pers. leaves in diabetic rat

2004 ◽  
Vol 2 (1) ◽  
pp. 15-23
Author(s):  
UDHI EKO HERNAWAN ◽  
SUTARNO SUTARNO ◽  
AHMAD DWI SETYAWAN

The aim of this study was to know the hypoglycaemic and hypolipidaemic activities of water extract of bungur (Lagerstroemia speciosa [L.] Pers.) leaves in alloxan-induced diabetic rat. Phytochemical studies was conducted to determinate the tannin-contents of the water extract (WE). Male Wistar rats (150- 180 9 BW) were used in this study. The rats were divided into six groups: nonnal control; diabetic control; glibenclamide; WE 0.1 g/200 9 BW; WE 0.2 g/200 9 BW; and WE 0.5 g/200 9 BW. Dried leaves of bungur extracted with boiling water (50 g/L) for 30 minutes. The extract administered orally. Fasting blood glucose, triglyceride, and total cholesterol were determined at 0, 2, 4, 6 hours after treatment. Total phenol, ellagitannin, gallotannin, and condensed-tannin were determined from the WE. The results showed that WE exhibited hypoglycaemic activity at doses 0.2 g/200 9 BW and 0.5 g/200 9 BW. The last dose showed similar hypoglycaemic activity compared with glibenclamide. All doses showed the hypolipidaemic activity higher than glibenclamide. Phytochemical studies showed that the WE containing total phenol 0.025%; ellagitannin 0.011%; gallotannin 0.0199%; and condensed-tannin 0.0167%.

2016 ◽  
Vol 4 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Talha Bin Emran ◽  
Mycal Dutta ◽  
Mir Muhammad Nasir Uddin ◽  
Aninda Kumar Nath ◽  
Md Zia Uddin

The study was designed to evaluate the glucose and cholesterol lowering effect of the aqueous extract of Centella asiatica leaf using the alloxan-induced diabetic rats and compared the activity with diabetic control and antidiabetic drug (Glibenclamide). Leaf extract (50 mg/kg) of C. asiatica and Glibenclamide were administered to normal and experimental diabetic rats for the duration of 10 days. In the alloxan-induced diabetic rat model, C. asiatica extract (50 mg/kg) significantly (p < 0.05) lowered the fasting blood glucose level as well as the total cholesterol level. Serum insulin levels were not stimulated in the animals treated with the extract. In addition, changes in body weight, serum lipid profiles and liver glycogen levels assessed in the extract treated diabetic rats were compared with diabetic control and normal animals. Significant results (p < 0.05) were observed in the estimated parameters. Surprisingly, body weight was increased significantly (p < 0.05) in the C. asiatica treated diabetic group. Phytochemical screening showed the presence of alkaloids, flavonoids, glycosides, steroids and tannins in significant amountsJahangirnagar University J. Biol. Sci. 4(1): 51-59, 2015 (June)


2013 ◽  
Vol 12 (3) ◽  
pp. 298-304 ◽  
Author(s):  
Chika Anna Onyeka ◽  
Agnes Akudo Nwakanma ◽  
Adeola Airat Bakare ◽  
Ini Ibehe Okoko ◽  
Uzozie Chikere Ofoego ◽  
...  

Objective: The study was aimed at investigating the hypoglycemic, antioxidant and Hepatoprotective effects of Chrysophyllum albidum in diabetes induced male Wistar rats. Methods: Ethanol root bark extract was administered to thirty rats of six groups A, B, C, D, E and F of five rats each, weighing between 150-170g. Diabetes was induced in Groups B, C, D, E and F using a single intraperitoneal injection of 140mg/kg of Alloxan after an overnight fast. Group A served as the normal control while Group B served as the diabetic control. Group C had metformin of 500mg while Groups D, E and F received 50, 100 and 200mg/kg / bw/ day of the plant extract respectively through orogastric intubation. All the animals were given normal rat chow and water freely. Blood glucose level was determined and the experiment lasted for 3 weeks. On day 21 after an overnight fast, animal were anaesthetized and blood samples were collected by cardiac puncture under inhaled chloroform for the determination of superoxide dismutase (SOD), catalase (CAT) and malondialdehyde (MDA) assays. The liver function test, ALT, AST and ALP was determined. Result: This showed that C. albidum and metformin significantly (p < 0.05) lowered the Fasting blood glucose (FBS), the activities of SOD and CAT was dose- dependently increase when compared to the diabetic  control and there was also a reduction of  MDA in the treated groups. There was decrease in the activity of ALT, AST and ALP, which was also dose-dependent. Conclusion: The results showed that the plant has significant antidiabetic activity and could therefore be employed for the treatment of diabetes mellitus in which free radicals are implicated.Bangladesh Journal of Medical Science Vol. 12 No. 03 July ’13 Page 298-304 DOI: http://dx.doi.org/10.3329/bjms.v12i3.12721 


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Anna Safitri ◽  
Dewi Ratih Tirto Sari ◽  
Bigram Refsilangi ◽  
Anna Roosdiana ◽  
Fatchiyah Fatchiyah

Diabetes mellitus (DM) is a serious worldwide health threat since the number of people with DM is forecasted to grow annually. Thus, effective and affordable treatment is urgently needed. Our previous studies used n-hexane and hydroethanolic root extracts of Ruellia tuberosa L. which significantly affected diabetic rats. In this study, aqueous R. tuberosa L. root extracts were used as treatments for the diabetic rat model and their effects were evaluated. Diabetes was generated by the administration of streptozotocin (STZ) at 20 mg/kg within 5 sequential days. Male Wistar rats were orally treated with the extracts and standard drug (metformin 200 mg/kg) and vehicle every day for 4 weeks. Hypoglycemic effects were assessed for normal, diabetic control, standard, and extract-treated groups. Histopathology was also carried out for the pancreatic, hepatic, and kidney tissues. The progression of diabetes was considerably diminished after extract treatment. In treated rats, the highest dose of extract induced a decline in blood glucose and serum malondialdehyde (MDA) levels at 25% and 35%, respectively. Furthermore, aqueous extract of R. tuberosa L. treatment decreased MDA levels in the pancreas by 12%. Histologic examination of the organ tissues of diabetic rats showed deteriorating alterations. After treatment, histopathological damages to the tissues and cells were reversed. The results of the experiments recommend that aqueous extract of R. tuberosa L. has antidiabetic effects on STZ-induced diabetic rats; nevertheless, a higher dose of the aqueous extracts is needed to achieve more significant results.


2020 ◽  
Vol 11 (4) ◽  
pp. 5067-5070
Author(s):  
Pang Jyh Chayng ◽  
Nurul Ain ◽  
Kaswandi Md Ambia ◽  
Rahim Md Noah

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.


2020 ◽  
Vol 20 (3) ◽  
pp. 446-452
Author(s):  
Seyed S. Mortazavi-Jahromi ◽  
Shahab Alizadeh ◽  
Mohammad H. Javanbakht ◽  
Abbas Mirshafiey

Background: This study aimed to investigate the effects of guluronic acid (G2013) on blood sugar, insulin, and gene expression profile of oxLDL receptors (SR-A, CD36, LOX-1, and CD68) in the experimental model of diabetes. Methods: 18 Sprague Dawley rats were randomly assigned to three groups of healthy control, diabetic control, and G2013 group. Diabetes was induced through intraperitoneal (IP) injection of 60 mg/kg streptozotocin. The subjects were IP treated with 25 mg/kg of G2013 per day for 28 days. The body weight, food intake, fasting blood glucose and insulin were measured. In addition, the expression of mentioned genes was investigated through quantitative real-time PCR. Results: The data showed that the final weight increased significantly in the G2013-treated subjects compared to the diabetic control (p < 0.05). The results indicated that final food intake significantly reduced in the G2013-treated subjects compared to the diabetic control (p < 0.05). The study findings also suggested that the final fasting blood glucose significantly reduced in the G2013-treated group, whereas the final fasting serum insulin level significantly increased in this group compared to the diabetic control (p < 0.05). Moreover, the gene expression levels of SR-A, CD36, LOX-1, and CD68 in the G2013 group significantly reduced compared to the diabetic control (p < 0.05). Conclusion: This study showed that G2013, could reduce blood glucose and increase insulin levels and reduce the gene expression level of oxLDL receptors. In addition, it may probably play an important role in reducing the severity of diabetes-induced inflammatory symptoms.


2020 ◽  
Vol 45 (4) ◽  
pp. 397-404
Author(s):  
Tugba Gurpinar Çavuşoğlu ◽  
Ertan Darıverenli ◽  
Kamil Vural ◽  
Nuran Ekerbicer ◽  
Cevval Ulman ◽  
...  

AbstractObjectivesType 2 diabetes is a common metabolic disease and anxiety disorders are very common among diabetics. Buspirone is used in the treatment of anxiety, also having blood glucose-lowering effects. The aim of the study was to investigate the effects of buspirone on the glucose and lipid metabolism as well as vascular function in type 2 diabetic rats.MethodsA type 2-diabetic model was induced through a high-fat diet for eight weeks followed by the administration of low-dose streptozotocin (35 mg/kg, intraperitoneal) in rats. Buspirone was given at two different doses (1.5 mg/kg/d and 5 mg/kg/d) and combined with metformin (300 mg/kg/d). The fasting glucose and insulin levels, lipid profile were analyzed, and vascular response measured from the thoracic aorta was also evaluated.ResultsBoth doses of buspirone caused a significant improvement in fasting blood glucose levels. In particular, the buspirone treatment, combined with metformin, improved endothelial dysfunction and was found to be correlated with decreased nitrate/nitrite levels.ConclusionsBuspirone may be effective in the treatment of type 2 diabetes, either alone or in combination with other treatments, particularly in terms of endothelial dysfunction, inflammation and impaired blood glucose, and insulin levels.


Diabetology ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 190-204
Author(s):  
Ahmed Al-Humadi ◽  
Athina Strilakou ◽  
Hussam Al-Humadi ◽  
Rafal Al-Saigh ◽  
Emmanouel Agapitos ◽  
...  

Choline (Ch) is an essential molecule of substantial importance for the optimal development and function of several biological systems. Ch deprivation has been linked with abnormal fat metabolism, insulin resistance, and myocardial dysfunction. The current study provides evidence of an exacerbation of streptozotocin-induced cardiomyopathy in adult diabetic Wistar rats by dietary Ch deprivation through the administration of a Ch-deprived diet (CDD). Twenty-four adult male Wistar rats were randomly separated into four groups: control, diabetic (DM), choline-deprived through choline-deprived diet (CD), and diabetic choline-deprived (DM + CD). After five weeks of dietary intervention, myocardium echocardiographic and histological assessments were performed. Choline-deprived diabetic rats exhibited significantly slower heart rate, significantly higher myocardial ejection velocity and left ventricle wall tension index with a concomitant significant decreased LV posterior wall thickness as compared to diabetic rats fed on a standard diet. Moreover, histopathological evidence demonstrated an exacerbation of myocardial inflammation and fibrosis associated with significant up-regulation of VEGF expression in the diabetic rat myocardium as a result of Ch deprivation. The study’s findings are of particular significance since the examined experimental approach introduces a previously uncharacterised comorbidity simulation with regards to myocardial structure and functional profiling.


2020 ◽  
Vol 15 (1) ◽  
pp. 86-97
Author(s):  
Hafshah . ◽  
Kristina Simanjuntak

The sufferers of Diabetes Mellitus (DM) in Indonesia is the highest with fourth number in the world, with a mortality rate of 1.2 million in 2012. Because of it, DM research using antihyperglycemic green tea is needed. This study aims to determine the effectiveness of green tea extracts on decreasing fasting blood glucose (KGDP) levels in alloxan-induced white male Wistar rats. Samples were 30 male rats, aged 8-12 weeks, weight ± 200 grams. Rats were grouped into 6 groups with the first group (K1) as a control, the second group (K2) induced alloxan, the third group (K3) induced alloxan with glibenclamide, the fourth group (K4), the fifth group (K5), and the sixth group (K6) induced alloxan with green tea extract as the treatment with dose of green tea extract, 200 mg/kg, 400 mg/kg, and 800 mg/kg. The first, FBG level examination is done 3 days after induction of alloxan using a glucometer. Giving green tea extract was given for 16 days orally, then FBG level re-examined from the tail of rats. One Way ANOVA Test Results, there is the effectiveness of green tea extract on reducing FBG level (p = 0,000). The post hoc Bonferroni test showed that giving 800 mg/kg of green tea extract was the best dose in reducing KGDP close to normal (p = 0,000).


2021 ◽  
Vol 16 (8) ◽  
pp. 602-606
Author(s):  
M. Bostani ◽  
S.A. Noaein

Background. In recent years, diabetes has become a global health problem. Apoptosis of pancreatic beta cells plays an important role in the pathogenesis of type 1 diabetes. Exercise as a non-pharmacological strategy to reduce the diabetic-induced complications has always been of interest to researchers. Therefore, the purpose of this study was to investigate the effect of aerobic exercise on levels of Bax, Bcl-2 and Bax/Bcl-2 ratio in pan­creatic tissue of streptozotocin (STZ)-induced diabetic rats. Materials and methods. A total number of 40 male Wistar rats (10 weeks old, 200–250 gr weight) were randomly divided into healthy control (HC), healthy trained (HT), diabetic control (DC), and diabetic trained (DT) groups. Diabetes was also induced by a single intraperitoneally injection of streptozocin (45 mg/kg). The training groups performed the exercise on the treadmill for five consecutive days within six weeks. The pancreatic tissue levels of the Bax and the Bcl-2 proteins were further determined via ELISA method. Results. The results showed that the induction of diabetes had significantly decreased the levels of Bcl-2 protein and increased the levels of Bax protein and Bax/Bcl-2 ratio in the pancreatic tissue (p < 0.05). As well, the findings showed that six weeks of aerobic exercise training had significantly increased the levels of Bcl-2 and significantly decreased the levels of Bax protein in DT group. Also, the Bax/Bcl-2 ratio reduced significantly in DT group (p < 0.05). The increase in displacement and transmission of apoptosis inducing factor (AIF) that have seen in oxidative stress status, is reduced in the tissues of trained individuals which indica­ting of the inhibition in the apoptotic signaling. Conclusions. According to the results of this study, exercise can be considered as an effective strategy to reduce the rate of diabetic-induced apoptosis and control its complications.


2020 ◽  
Vol 8 (2) ◽  
pp. 74-82
Author(s):  
Forough Kajbaf ◽  
Shahrbanoo Oryan ◽  
Ramesh Ahmadi ◽  
Akram Eidi

Background: Growing evidence has shown that the apoptosis of cells plays an important role in the advancement of the Diabetic nephropathy (DN). Objectives: This study attempted to discover the therapeutic potential of Peganum harmala leaf extract in the apoptosis of diabetic kidney disease. Methods: In the present experimental research, 32 male Wistar rats were studied, and diabetes was induced by streptozotocin (STZ) (65 mg/kg). The animals were randomly divided into four groups (n=8, in each group) as follows: control, diabetic, control+leaf extract, diabetic+leaf extract. For our purposes, the methanolic extract of P. harmala leaves (150 mg/kg) was given by gavage for 28 days. Flow cytometry and real-time polymerase chain reaction (PCR) analyses were utilized to determine the percentages of apoptotic cells. Also, histological alterations and blood biochemical parameters were evaluated. Results: The P. harmala leaf extract has a high amount of flavonoids (25.84%), a lower percentage of alkaloids (0.14%), and some antioxidant properties. Serum urea (P<0.001) and apoptosis (P<0.05) significantly elevated in diabetic rats relative to the control ones. The mean of fasting blood creatinine, urea, and albumin level was not significantly changed in diabetic+leaf extract rats as compared to the diabetic ones. Histopathological results also displayed that diabetic complications in the kidney could not be improved following treatment by the leaf extract of P. harmala. In addition, the leaf extract could not significantly reduce the apoptosis and caspase-3 expression compared to diabetics in renal cells. Conclusion: Based on our findings, the leaf extract of P. harmala is unable to inhibit apoptosis in the diabetic kidney model.


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