Dioscorea dumetorum-Fed Rats Exhibited Decreased Body Weight, Blood Glucose, and Insulin in STZ-induced Diabetes

2014 ◽  
Vol 4 (2) ◽  
pp. 87 ◽  
Author(s):  
Henrietta Aritetsoma Ogbunugafor ◽  
Emmanuel Emeka Ilodigwe ◽  
Daniel Lotanna Ajaghaku ◽  
Chinwe Nonyelum Ezekwesili ◽  
Chike Samuel Okafor ◽  
...  

Background: Preventive measures that could slow down the rising incidences of diabetes mellitus are essential. The use of neglected local foods, which have effects on this chronic disease beyond basic nutrition as dietary controls, is desirable.Objective: The effect of Dioscorea dumetorum (Kunth) Pax (Dioscoreaceae) feed on satiety, weight, blood glucose, and insulin levels were investigated in streptozotocin-induced diabetic rats.Methods: Twenty adult male rats in four groups of five were used for the experiment. Three groups – D. dumetorum, glibenclamide, and standard pellet-fed rats were induced with diabetes by i.p. administration of 50mg kg-1 streptozotocin, while the fouth group (?) served as a non-diabetic control. D. dumetorum was fed at 15g daily for ten days before induction, and after induction, feeding continued. Glibenclamide was orally administered 5mg kg-1 daily. Both the untreated and non-diabetic rats were kept on standard rat pellets. Feed intake, weight, and blood glucose concentration were monitored daily, while insulin level was measured on day two and day six after inductions. Results: Average feed intake for non-diabetic rats was 15g for D. dumetorum per day, which dropped to 10.3g after induction of diabetes. Weight of normal non-diabetic rats consistently increased (142.61 ± 4.37g – 169.43 ± 8.61g) for the duration (17 days) of the experiment. The D. dumetorum-fed rats showed weight reduction of 5.4%, glibenclamide 4.0%, and untreated diabetic 6.15%. Non-diabetic rats blood glucose levels ranged between 70 to 100mg dL-1. Streptozotocin (STZ) (i.p.) administration increased blood glucose levels from 370% to 626% in the rats. D. dumetorum-fed rats showed reduced (p<0.05) blood glucose levels of 22.6%. Glibenclamide had 5.5% reduction (p<0.05). Insulin was absent in D. dumetorum-fed rats, whereas 0.95ng ml-1 of insulin was detected in glibenclamide-administered rats. These quantities were lower (p<0.001) than 1.40ng ml-1 in the non-diabetic rats. Conclusion: This study revealed that D. dumetorum tuber caused decreased hunger, weight reduction, and displayed hypoglycemic property in diabetic rats, even after heat treatment. Its probable mechanism of anti-hyperglycemic activity might not be through increased insulin secretion.Key words: D. dumetorum, streptozotocin-induced diabetes, weight, blood glucose, insulin.

2016 ◽  
Vol 15 (1) ◽  
Author(s):  
Imad M. Al-Ani ◽  
Rahajoe I. Santosa ◽  
Muhammad H. Yankuzo

Introduction: This study examined the antihyperglycemic effect of curry leaves, Murraya koenigii “MK” aqueous extract, and to examine its possible protective effects on the Islets of Langerhans and kidneys in streptozotocin (STZ) induced diabetic rats.  Methods: Thirty healthy adult male Sprague Dawley rats were randomized into five groups (n=6); normal control, normal treated with “MK” control, diabetic control (non-treated with “MK”), diabetic treated with 200mg/kg MK aqueous leaf extract and diabetic treated with 400mg/kg MK aqueous leaf extract. Blood glucose levels and body weight were monitored. The animals were sacrificed on the 30th day; the kidney and pancreatic tissues were processed for histological studies. Results: The diabetic control group significantly (p<0.001) showed considerable loss of body weight and increase in blood glucose levels and degeneration of the glomeruli and renal convoluted tubules and atrophied islets with disintegration of β-cells. Treatment of diabetic rats with aqueous extract showed significant (p<0.001) improvement in blood glucose levels and body weight gain.  The MK extract also caused an improvement in tissue injury induced by STZ injection in the kidney and endocrine pancreas.  Conclusions: These findings highlighted the beneficial effects of MK aqueous extract against cellular oxidative damage in STZ-induced diabetic rats.


Author(s):  
DEVI M ◽  
KOMAL S ◽  
LOGESHWARI B

Objective: The present study was aimed to evaluate the antidiabetic activity of ethanolic extract of the whole aerial plant of Portulaca grandiflora Hook on streptozotocin (STZ)-induced diabetic rats. Methods: Experimental diabetes was induced by a single dose of intraperitoneal injection of STZ (150 mg/kg). Adult male Wister albino rats were divided into five groups; normal control, diabetic control, diabetic glibenclamide (5 mg/kg), diabetic P. grandiflora H. extract (200 mg/kg), and diabetic P. grandiflora H. extract (400 mg/kg) for 21 days and analyzed for body weight (BW) and blood glucose. Results: The STZ-treated diabetic control rats showed a significant increase in blood glucose with a concomitant decrease in BW. Oral administration of P. grandiflora H. extract (200 and 400 mg/kg) and glibenclamide (5 mg/kg) for 21 days showed a significant reduction in blood glucose levels and elevation in the bodyweight studies as compared to control and glibenclamide-treated rats. Conclusion: The results of the present study showed that a potent antidiabetic activity was present in the aerial part of plant P. grandiflora H. extract.


2014 ◽  
Vol 92 (6) ◽  
pp. 438-444 ◽  
Author(s):  
Haniah Solaimani ◽  
Nepton Soltani ◽  
Kianoosh MaleKzadeh ◽  
Shahla Sohrabipour ◽  
Nina Zhang ◽  
...  

It has been previously shown that oral magnesium administration decreases the levels of glucose in the plasma. However, the mechanisms are not fully understood. The aim of this study was to determine the potential role of GLUT4 on plasma glucose levels by orally administering magnesium sulfate to diabetic rats. Animals were distributed among 4 groups (n = 10 rats per group): one group served as the non-diabetic control, while the other groups had diabetes induced by streptozotocin (intraperitoneal (i.p.) injection). The diabetic rats were either given insulin by i.p. injection (2.5 U·(kg body mass)–1·day–1), or magnesium sulfate in their drinking water (10 g·L–1). After 8 weeks of treatment, we conducted an i.p. glucose tolerance test (IPGTT), measured blood glucose and plasma magnesium levels, and performed in-vitro and in-vivo insulin level measurements by radioimmunoassay. Gastrocnemius (leg) muscles were isolated for the measurement of GLU4 mRNA expression using real-time PCR. Administration of magnesium sulfate improved IPGTT and lowered blood glucose levels almost to the normal range. However, the insulin levels were not changed in either of the in-vitro or in-vivo studies. The expression of GLU4 mRNA increased 23% and 10% in diabetic magnesium-treated and insulin-treated groups, respectively. Our findings suggest that magnesium lowers blood glucose levels via increased GLU4 mRNA expression, independent to insulin secretion.


2018 ◽  
Vol 1 (2) ◽  
pp. 157-163
Author(s):  
D O Ochalefu ◽  
G I Adoga ◽  
C D Luka ◽  
H A Abu ◽  
E O O Amali ◽  
...  

Researches targeted at understanding and controlling abnormally high level of blood glucose in Diabetes mellitus are ongoing. In spite of many available anti-diabetic drugs in the market, safer and cheaper remedies from plant material are being sought for due to the unwanted side effects of these drugs. In this research work, we looked at the beneficial blood glucose lowering effect of the plant Nauclea latifolia in streptozotocin-induced diabetic albino Wistar rats. The extracts were first screened for the presence of phytochemicals using standard methods and the result showed the presence of saponins, tannins, reducing sugar, phlobatannins, anthraquinone, flavonoids, steroids and alkaloids. The study design involved 30 male albino Wistar rats which were divided into 6 groups. Groups 1 and 2 represent the Normal Control and Diabetic Control respectively. Groups 3, 4 and 5 were Diabetic rats treated orally with 500mg/kg body weight of aqueous extracts of Stem-bark, Leaves and Root-bark respectively while Group 6 were Diabetic rats treated with 5mg/kg body weight of Glibenclamide. The extracts and Glibenclamide were administered for 28 days. Blood glucose levels were determined on days 0, 7, 14, 21 and 28 by tail tipping method using Glucometer (Accu-Chek, Manheim, Germany). The extracts and Glibenclamide reduced significantly (p<0.05) the Fasting Blood Glucose levels in the diabetic treated rats compared with the Diabetic Control. Amongst the extracts the root-bark is more efficacious, decreasing the glucose level by 49.80% while the stem-bark and leaves brought about reduction by 28.76% and 12.15% respectively. The findings imply that the extracts of this plant have blood glucose lowering ability and should be further evaluated for its beneficial effect in Diabetes mellitus management.


2021 ◽  
Vol 67 (2) ◽  
pp. 9-16
Author(s):  
Mgs Irsan Saleh ◽  
Rachmat Hidayat ◽  
Geri Febriyanto ◽  
Nita Parisa

Summary Introduction: Karamunting (Rhodomyrtus tomentosa) is Indonesian native plant that contains high anti-oxidant compounds with the potential to suppress oxidative stress activity in cells. This study is the first research to specifically explore the role of the karamunting fraction in protecting kidney damage due to the formation of AGEs in the renal glomerulus in diabetes mellitus. Objective: This study aims to assess the impact of karamunting on blood glucose profile, HbA1c, insulin profile and kidney condition (AGEs expression, TNF-α and kidney histology) in diabetic rats. Methods: The karamunting extraction process was carried out by maceration with ethanol. Induction of diabetes mellitus was carried out using streptozotocin. Thirty male rats (Rattus norvegicus), Wistar strain weighing between 200–250 grams were the subject in this study. HbA1c, insulin, TNF-α, AGEs levels were evaluated in the kidney tissue. Histological assessment of the kidney was carried out. Results: Karamunting can improve blood glucose levels in diabetic rats. This improvement in blood glucose levels causes an improvement in the level of HbA1c. Administration of karamunting fraction can prevent AGEs deposition in renal tissue, which in turn will inhibits the inflammation and prevents further damage of kidneys. Conclusion: Karamunting fraction can improve blood glucose regulation so that it can prevent further damage and complications of kidney organs in diabetic rats.


2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
S. A. Sheweita ◽  
S. Mashaly ◽  
A. A. Newairy ◽  
H. M. Abdou ◽  
S. M. Eweda

Alhagi maurorum(camel thorn plant) is a promising medicinal plant due to the presence of flavonoids and phenolic compounds as major contents of its constituents. No previous study has been conducted before onA. maurorum extractsas an antioxidative stress and/or antidiabetic herb in STZ-induced DM in rats. Therefore, four groups of rats were allocated as control (C), STZ-induced DM (D), and STZ-induced DM supplemented with 300 mg/kg BW of either aqueous extract (WE) or ethanolic extract (EE) ofA. maurorum. The plasma levels of glucose, TG, TC, LDL-C and VLDL-C, MDA, and bilirubin and the activities of transaminases and GR were significantly increased in the diabetic group. Also, diabetic rats showed severe glucose intolerance and histopathological changes in their livers. In addition, levels of insulin, total proteins, GSH, and HDL-C and the activities of SOD, GPx, and GST were significantly decreased in the diabetic rats compared to those of the control group. The ingestion ofA. maurorumextracts lowered the blood glucose levels during the OGTT compared to the diabetic rats and restored all tested parameters to their normal levels with the exception of insulin level that could not be restored. It is concluded thatA. maurorumextracts decreased elevated blood glucose levels and hyperlipidemia and suppressed oxidative stress caused by diabetes mellitus in rats.


2019 ◽  
Vol 88 (3) ◽  
pp. 349-354 ◽  
Author(s):  
Rahil Parsamehr ◽  
Somayeh Bohlouli

Diabetes mellitus is a metabolic disease characterized by elevated blood glucose levels. Medicinal plant Ferulago angulata has anti-oxidant properties. The aim of the present research was to evaluate the effect of a hydroalcoholic extract of F. angulata on the blood glucose level and liver enzyme activity in diabetic male rats. Forty-eight male rats were randomly divided into eight groups, including normal and diabetic groups. Diabetes was induced by a single intraperitoneal injection of streptozotocin at 40 mg·kg-1 body weight. Rats were treated with an intraperitoneal injection of the extract for three weeks. At the end of the experimental period, fasting blood samples were collected, and blood glucose and liver enzyme activity were measured. This study demonstrated that serum glucose levels in diabetic groups treated with F. angulata were significantly lower than those in diabetic rats (P < 0.001). Alanine aminotransferase levels in diabetic rats treated with F. angulata were significantly decreased compared to diabetic rats (P < 0.001). Aspartate aminotransferase levels in diabetic rats treated with 200 and 400 mg·kg-1 F. angulata were significantly decreased compared to diabetic rats (P < 0.001). No significant differences were observed in the serum levels of blood glucose and liver enzymes in the normal group treated with different doses of the extract. These results show that the hydroalcoholic extract of F. angulata might be effective in the treatment of diabetes and consequently alleviate the liver damage caused by streptozotocin-induced diabetes mellitus. This effect might be due to the presence of flavonoids and their antioxidant features.


Author(s):  
Adegbolagun T. Adeoye ◽  
Ademola A. Oyagbemi ◽  
Aduragbenro D. Adedapo ◽  
Temidayo O. Omobowale ◽  
Abiodun E. Ayodele ◽  
...  

The methanolic leaf extract of Vernonia amygdalina (MLVA) was assessed to evaluate its antidiabetic potential in rats. Diabetes was induced in male Wistar rats by the administration of alloxan monohydrate at 100 mg/kg of body weight. After 48 h, rats with fasting blood glucose levels of 200 mg/dL and above were considered diabetic and used for the study. The experimental animals were grouped into five groups (A–E) of 10 animals each. Group A rats were non-diabetic normal control, Group B consisted of diabetic control rats that received no treatment, groups C, D and E rats were diabetic rats but treated with glibenclamide, 200 and 400 mg/kg doses of MLVA respectively. Blood samples were collected at days 14 and 28 after induction for haematological and serum biochemical indices such as triglycerides, LDL, cholesterols etc. The intestine was collected and intestinal homogenate was prepared for the antioxidant studies. The extract at 200 mg/kg and 400 mg/kg doses significantly (p < 0.05) reduced blood glucose levels in extract-treated diabetic rats and also significantly increased weight gain in these rats. Most haematological parameters in treated rats experienced, while platelets and neutrophils were decreased. Biochemical indices measured were reduced in MLVA-treated groups compared with diabetic control. Treatment with MLVA also produced significant (p < 0.05) decrease in markers of oxidative stress but increased levels of enzymic and non-enzymic antioxidant markers in intestinal homogenates of treated groups compared with diabetic control. This study showed that V. amygdalina has antihyperglycaemic and in vivo antioxidant effects.


2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Imad M. Al-Ani ◽  
Ahmed N. Abired ◽  
Basma E. Mustafa ◽  
Emad N. Abdel Wahab ◽  
Marwan S. Azzubaidi

Introduction: Diabetes mellitus has become a serious warning to mankind health all over the world. The management goal of diabetes is to keep blood glucose levels as close as possible to healthy individuals. Medications used to treat diabetes are usually associated with complications and may cause different side effects. Many traditional anti-diabetic plants have become popular in the management of diabetes mellitus. Flaxseed has been used as traditional medicine for centuries. Objective: This study aimed to evaluate the hepatoprotective effects of flaxseed extract in streptozotocin (STZ)-induced diabetic rats. Methods: Diabetes mellitus was induced in Sprague-Dawley rats using a single injection of streptozotocin (60 mg/kg i.p.). The rats were divided into five groups of 8 rats each. Group NC, normal control rats; Group NF, normal rats treated with flaxseed extract (400 mg/kg); Group DC, diabetic control rats; Group DG, diabetic rats treated with glibenclamide (0.6 mg/kg); Group DF, diabetic rats treated with flaxseed extract (400 mg/kg); for 4 weeks. Results: There were significant increase in relative liver weight, blood glucose levels in DC group comparing to NC group (p<0.05). The disturbance of these parameters was ameliorated in DF and DG groups. Histological observation revealed congestion of central veins, degeneration of hepatocytes, and reduced glycogen granules in DC group. These pathological changes were ameliorated in the flaxseed extract and glibenclamide treated rats. Conclusion: Flaxseed extract may represent a candidate alternative treatment to control diabetes mellitus and its related hepatopathy.


2019 ◽  
Vol 19 (4) ◽  
pp. 503-510 ◽  
Author(s):  
Mohamed Eddouks ◽  
Farid Khallouki ◽  
Robert W. Owen ◽  
Morad Hebi ◽  
Remy Burcelin

Aims: Arganimide A (4,4-dihydroxy-3,3-imino-di-benzoic acid) is a compound belonging to a family of aminophenolics found in fruit of Argania spinosa. The purpose of this study was to investigate the glucose and lipid lowering activity of Arganimide A (ARG A). Methods: The effect of a single dose and daily oral administration of Arganimide A (ARG A) on blood glucose levels and plasma lipid profile was tested in normal and streptozotocin (STZ) diabetic rats at a dose of 2 mg/kg body weight. Results: Single oral administration of ARG A reduced blood glucose levels from 26.50±0.61 mmol/L to 14.27±0.73 mmol/L (p<0.0001) six hours after administration in STZ diabetic rats. Furthermore, blood glucose levels were decreased from 5.35±0.30 mmol/L to 3.57±0.17 mmol/L (p<0.0001) and from 26.50±0.61 mmol/L to 3.67±0.29 mmol/L (p<0.0001) in normal and STZ diabetic rats, respectively, after seven days of treatment. Moreover, no significant changes in body weight in normal and STZ rats were shown. According to the lipid profile, the plasma triglycerides levels were decreased significantly in diabetic rats after seven days of ARG treatment (p<0.05). Moreover, seven days of ARG A treatment decreased significantly the plasma cholesterol concentrations (p<0.001). Conclusion: ARG A possesses glucose and lipid-lowering activity in diabetic rats and this natural compound may be beneficial in the treatment of diabetes.


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