Antidiabetic Effect Of Ethanolic Extract Research Articles

Evaluation of anti-diabetic effect of ethanolic extract Of andrographis echioides by alpha glucosidase & alpha amylase assay

Evaluation of anti-diabetic effect of ethanolic extract Of andrographis echioides by alpha glucosidase & alpha amylase assay

HEALING POTENCY OF HAEMATOCOCCUS PLUVIALIS EXTRACT FOR TREATING TYPE 2 DIABETES IN RATS

<p><strong>Objective: </strong>The present study aims to evaluate the antidiabetic effect of ethanolic extract of <em>Haematococcus pluvialis (H. pluvialis) </em>in streptozotocin (STZ)-induced diabetic rats.</p><p><strong>Methods: </strong>The antidiabetic activity of <em>H. pluvialis </em>was investigated by the determination of glucose and insulin levels, aspartate (AST), alanine transaminases (ALT), lipid profile including total cholesterol (TC), triglycerides (TG), low-density lipoprotein-cholesterol (LDL-C) and high-density-lipoprotein-cholesterol (HDL-C). Histopathological examination of pancreas and liver were also carried out.</p><p><strong>Results: </strong>The results revealed that the levels of glucose, TC, TG, LDL-C as well as AST and ALT enzyme activities were increased significantly in diabetic rats. While, insulin and HDL-C levels decreased significantly in STZ-induced diabetic rats. The remediation of diabetic rats with <em>H. pluvialis</em> attenuated the elevated levels of glucose, TC, TG, LDL-C as well as AST and ALT activities in diabetic rats. Besides, it improved insulin, HDL-C levels, pancreas and hepatic architectures.<strong></strong></p><p><strong>Conclusion: </strong><em>H. pluvialis</em> extract has a promising antidiabetic potency through attenuation of several metabolic disorders associated diabetes.<strong></strong></p>

Antidiabetic activity of extracts of Anacardium occidentale Linn. leaves on n-streptozotocin diabetic rats

Anacardium occidentale L. (Anacardiaceae) is used in South Cameroon as well as in other tropical countries by traditional practitioners as a folk remedy for treatment of diabetes mellitus. We demonstrated the antidiabetic potential of the plant extracts in n-streptozotocin diabetic rats. The aim of the current study was to investigate the antidiabetic effects of ethanol extract of leaves of A. occidentale on neonatal streptozotocin diabetic rats.Two day old neonates were injected with 100 mg/kg of streptozotocin. At the end of the experimental period of 30 days, reduction in the fasting blood glucose levels, serum insulin, glycated hemoglobin levels, serum lipid parameters, and renal function biomarkers were estimated in the control and treated rats. Histopathological examination of liver, kidney and pancreas were also carried out.On administration of 100 mg/kg of plant extract, blood glucose levels of the rats showed 8.01% and 19.25% decrease in the fasting blood glucose levels on day 15 and day 30, respectively. The administration of extract showed that the effects of extract treatment are comparable to treatment with the standard drug Pioglitazone.These results demonstrate significant antidiabetic potential of the ethanol extract of leaves of A. occidentale, justifying the use of plant in the indigenous system of medicine. Further studies for investigating the specific compound(s) responsible for such beneficial role in diabetes would open new outlook in the therapy of type 2 diabetes.

Antidiabetic effect of ethanol extract on Codonopsis lanceolata root in streptozotocin induced diabetic rats

Antidiabetic effect of ethanol extract on Codonopsis lanceolata root in streptozotocin induced diabetic rats

ANTI-OXIDANT AND ANTI-DIABETIC ACTIVITIES OF ETHANOLIC EXTRACT OF Primula denticulata FLOWERS

The present investigation was carried out to focus on the anti-oxidant and anti-diabetic effect of ethanolic extract of flowers of Primula denticulata by DPPH, ferrous chelating, reducing power assay and streptozotocin induced diabetes respectively. Dose selection was made on the basis of acute oral toxicity study (100mg/kg, 200mg/kg, 400mg/kg bodyweight) as per OECD guidelines 423. The blood glucose levels were measured by using blood glucose measuring strips based on glucose-oxidase method. The extract showed significant anti-oxidant and anti-diabetic activity when compared with standard drug. Keywords: Primula denticulata, anti-oxidant and anti-diabetic activity.

Antidiabetic Effect of ethanol extract of Forsythia Koreana in Streptozotocin-Induced Diabetic Rat

Antidiabetic Effect of ethanol extract of Forsythia Koreana in Streptozotocin-Induced Diabetic Rat

Antioxidant activity of ethanol extract from Pandanus amaryllifolius Roxb. plant on diabetic mice

Diabetes with many dangerous complications is a major threat to global health. In this study, we evaluated the anti-diabetic potential of ethanol extract from Pandanus amaryllifolius leaves by determining their antioxidant ability. In the first step, mice were induced to be diabetes by using alloxan monohydrate (AM) solution. In the end of experiment, their kidneys, hearts and lungs were used to investigate the antioxidant activity of ethanolic extracts from P. amaryllifolius leaves by Total Antioxidant Status (TAS) assay. The extracts of P. amaryllifolius plant showed the percentage of free radical combine antioxidant in kidneys, hearts and lungs equivalent to those of normal mice treated with distilled water. However, the anti-diabetic effect of ethanolic extract of P. amaryllifolius leaves was higher than commercial available anti-diabetic drug glucofast.

Effect of ethanolic extract of Aloe vera (Aloe barbadensis) gel on blood glucose level of alloxan induced hyperglycaemic mice

The purpose of this study was to show the antidiabetic effect of ethanolic extract of Aloe vera gel in alloxan induced hyperglycaemic mice. Ethanolic extract of Aloe vera gel was orally administered for four weeks at a dose of 300mg/kg body weight. Weekly estimates of fasting blood glucose level in normal non-diabetic and alloxan induced hyperglycaemic mice were assessed. Ethanolic Aloe vera gel extract revealed no blood glucose lowering action upon non-diabetic mice. But, a significant reduction in blood glucose level (p<0.001) was seen in diabetic mice, when compared with diabetic control. Similar results were found when compared with a standard antidiabetic drug, gliclazide. To conclude, as administration of ethanolic extract of Aloe vera gel significantly reduces blood glucose level in hyperglycaemic mice, it can optimistically emerge as a new hope in the management of diabetes mellitus. DOI: http://dx.doi.org/10.3329/bjpp.v30i2.22680 Bangladesh J Physiol Pharmacol 2014; 30(2): 25-31

Anti-diabetic effects of ethanol extract of Bryonia laciniosa seeds and its saponins rich fraction in neonatally streptozotocin-induced diabetic rats.

Context:Bryonia laciniosa Linn. (Cucurbitaceae) seed is used in traditional medicine for a number of ailments including metabolic disorders.Aim:This study evaluated the anti-diabetic action of the ethanol extract of B. laciniosa seeds and saponin fraction of it through its effect on hyperglycemia, dyslipidaemia and oxidative stress in neonatally streptozotocin (n-STZ)-induced diabetic rats (n-STZ diabetic rats).Materials and Methods:Ethanol extract (250 and 500 mg/kg; p.o.), saponin fraction (100 and 200 mg/kg; p.o.) and standard drug glibenclamide (3 mg/kg; p.o.) were administered to diabetic rats when the rats were 6 weeks old and continued for 10 consecutive weeks. Effects of ethanol extract and saponin fraction on various biochemical parameters were studied in diabetic rats.Results:The treatment with ethanol extract and saponin fraction for 10 weeks decrease in the levels of glucose, triglycerides, cholesterol, high-density lipoprotein, low-density lipoprotein, very low-density lipoprotein, serum urea, serum creatinine and diminished activities of aspartate transaminase, and alanine transaminase. The anti-hyperglycemic nature of B. laciniosa is probably brought about by the extra- the pancreatic mechanism as evidenced from unchanged levels of plasma insulin. B. laciniosa modulated effect of diabetes on the liver malondialdehyde, reduced glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT) activity. Administration of ethanol extract and saponin fraction to diabetic rats showed a significant reversal of disturbed antioxidant status. Significant increase in SOD, CAT, and levels of GSH was observed in treated n-STZ diabetic rats.Conclusion:The present study reveals the efficacy of B. laciniosa seed extract and its saponin fraction in the amelioration of n-STZ diabetic rats.

Investigation of lipid profile and occular oxidative stress of Chloroxylon swietenia on Streptozotocin‑nicotinamide‑induced diabetic rats

Background: Diabetes mellitus is a chronic metabolic disorder, characterised by hyperglycaemia resulting from defects in insulin secretion, insulin action or both. Aim: This investigation was designed to study the antidiabetic effect of Ethanolic extract of Chloroxylon swietenia (EECS) in Streptozotocin‑Nicotinamide‑induced type‑II diabetes in rats. Materials and Methods: The extract at doses of 250 and 500 mg/kg was given to the overnight‑fasted Wistar albino rats for 14 days and the antidiabetic, lipid profile and ocular oxidative stress in Streptozotocin‑Nicotinamide‑induced diabetic rats were evaluated. The parameters studied were blood glucose, lipid profile [total cholesterol (TC), triglyceride (TG), high‑density lipoprotein (HDL), low‑density lipoprotein (LDL) and very low‑density lipoprotein (VLDL)], serum enzymes such as serum glutamate pyruvate transaminase (SGPT), serum glutamate oxaloacetate transaminase (SGOT), antioxidant enzymes like catalase (CAT), thiobarbituric acid reactive substances (TBARS), glutathione (GSH), complete blood picture (RBC, haemoglobin, WBC), insulin and liver glycogen levels. The result of test drug was compared with diabetic control. Glibenclamide (10 mg/kg) was selected as standard hypoglycaemic drug. Statistical Analysis: Results were expressed as Mean ± SD. Dunnet’s and one‑way ANOVA test was used to compare the mean values of test groups and diabetic control. Results: Administration of EECS prior to glucose overload resulted significant attenuation in blood sugar level at 60 and 120 min in comparison to glucose control group. The antidiabetic activity of EECS showed significant (P < 0.001) reduction in blood glucose level at 250 mg/kg and 500 mg/kg dose levels at 14th day. EECS with (250 and 500 mg/kg) also decreased in serum SGOT, SGPT, TG, TC, VLDL‑C, LDL‑C, WBC and TBARS, in diabetic‑induced rats. In addition EECS at (250 and 500 mg/kg) increased liver glycogen, insulin, complete blood picture RBC, haemoglobin, ocular oxidative enzymes CAT, GSH and body weight when compared with diabetic control. Conclusion: The result obtained from the present study revealed the potential anti‑diabetic activity of Ethanolic extract of Chloroxylon swietenia. Key words: Blood glucose, blood profile, Chloroxylon swietenia, diabetes mellitus, lipid profile, liver glycogen, ocular oxidative stress, serum insulin

Antidiabetic effects of Swertia macrosperma extracts in diabetic rats

Ethnopharmacological relevanceSwertia macrosperma is a traditional folk medicine used for its anti-hepatitis, antipyretic and antidotal effects as “Dida” or “Zangyinchen” in Tibet, Yunnan and Guizhou province for a long time, and it has been reported for its anti-diabetic effects in a Chinese patent. Swertia macrosperma was reported rich in xanthones, iridoids, seco-iridoids and their glycosides, several of which had been documented as potential antidiabetic agents. The objective of this study was to investigate the antidiabetic effect of Swertia macrosperma in diabetic rats. Materials and methodsThis study was designed firstly to evaluate the effect of Swertia macrosperma on glucose consumption in HepG2 cells. Based on the result in HepG2 cells, the antidiabetic effect of ethanol extract (EE) and n-butanol extract (BE) were investigated in diabetic rats induced by high fat fed and streptozotocin. The effects of EE and BE on fasting blood glucose, oral glucose tolerance test, serum insulin, glycosylated hemoglobin, serum lipid level, serum antioxidant parameters, glucokinase, glucose-6-phosphatase activities and glycogen content in liver tissue were measured, histology examination of pancreatic tissue was also carried out. ResultsAfter 4 weeks treatment with EE and BE, apparently decreased fasting blood glucose concentrations were observed in these treated groups, compared with the diabetic control groups. Additionally, improvement in serum antioxidant parameters and lipid profile were evidenced clearly. Moreover, EE and BE had effects of protecting the pancreatic β-cells and stimulating insulin secretion from the remaining pancreatic β-cells, evidenced by pancreatic histology examination. Increased glucokinase activity and decreased glucose-6-phosphatase activity were observed in liver. ConclusionThe results of in vivo and in vitro experiment suggested that EE and BE of Swertia macrosperma had excellent effects on controlling the hyperglycemia and hyperlipidemia in diabetic rats.

Hypoglycaemic effect of Melothria heterophylla in streptozotocin-induced diabetic rats

Context: In the Indian traditional system of medicine, Melothria heterophylla (Lour.) Cogn., (Cucurbitaceae) is prescribed for the treatment of diabetes mellitus.Objective: In the present study, the antidiabetic effect of ethanol extract of Melothria heterophylla (EEMH), and its active isolated constituents were investigated in streptozotocin (STZ)-induced diabetic Swiss albino rats.Method: Successive Soxhlet extraction of the dried total aerial parts with petroleum ether for defatting and then with ethanol (95%) to obtain ethanol extract, which was concentrated under reduced pressure. Hyperglycemia was induced in rats by STZ (50 mg/kg, body weight). Twenty-four hours after STZ induction, respective groups of diabetic rats received EEMH (200 and 400 mg/kg, body weight), gallic acid (GA) (2 and 4 mg/kg, body weight), and rutin (RU) (2 and 4 mg/kg, body weight), respectively, orally daily for 15 days. Glibenclamide (0.5 mg/kg, orally) served as reference. Blood glucose levels and change in body weight were measured on every 5th day during 15 days of treatment. Biochemical parameters, viz., serum glutamic oxaloacetic transaminase (SGOT), serum glutamic pyruvic transaminase (SGPT), alkaline phosphatase (ALP) and serum insulin, were measured.Results: EEMH and its active constituents significantly (p < 0.01) normalized blood glucose levels and serum biochemical parameters as compared to those of STZ controls. Both GA (4 mg/kg) and RU (4 mg/kg) exhibited maximum glucose lowering effect (69.1 and 66.7%, respectively) in diabetic rats compared to the other dose (2 mg/kg) at the end of the study. EEMH, gallic acid and RU also showed significant increase in serum insulin, and body weight of STZ-induced diabetic rats.Conclusion: Therefore, ethanol extract of Melothria heterophylla, GA and RU demonstrated remarkable antidiabetic activity in STZ-induced diabetic rats.

EFFECT OF ZINGIBER OFFICINALE (LINN) A ETHANOLIC EXTRACT ON METFORMIN INDUCED HYPOGLYCEMIA IN ALLOXAN INDUCED DIABETIC MICE

Zingiber officinale (Linn.) has been used in traditional medicine for the treatment of diabetes. The aim of the study was to evaluate the antidiabetic effect of ethanolic extract of Zingiber officinale (EthZO) by concomitantly administering with synthetic oral hypoglycaemic agents (OHA) in diabetic mice. (EthZO)150 mg-metformin (250 mg/kg) were administered orally alone as well as concomitantly in alloxan-induced diabetic mice. After acute and chronic treatment the serum glucose level was determined. Administration of EthZO (150 mg) + metformin (200 mg) with optimized dose was studied concomitantly at the interval of 15 min. Decreased blood glucose level (BGL) was compared with standard dose of metformin and was found to be lower than normoglycemia. Hence, it can be concluded that concomitant administration of EthZO and metformin causes synergistic significant effect than metformin alone. It can be investigated as the novel drug therapy in the treatment of diabetes mellitus.

Anti-obesity and anti-diabetic effects of ethanol extract of Artemisia princeps in C57BL/6 mice fed a high-fat diet

Artemisia princeps is commonly used as a food ingredient and in traditional Asian medicine. In this study, we examined the effects of long-term administration of an ethanol extract of A. princeps (APE) on body weight, white adipose tissue, blood glucose, insulin, plasma and hepatic lipids, and adipocytokines in C57BL/6 mice fed a high-fat diet. Daily feeding of a 1% APE diet for 14 weeks normalized elevated body weight, white adipose tissue, and plasma glucose and insulin levels, and delayed impaired glucose tolerance in mice a fed high-fat diet. These events were not observed in mice fed a control diet containing 1% APE. Liver triglyceride and cholesterol levels were similar in mice fed a 1% APE-diet and those fed a control diet. In the high-fat diet groups, APE inhibited hepatic fatty acid synthase (FAS) and suppressed the elevation of plasma leptin, but had no effect on adiponectin levels. These findings suggest that the regulation of leptin secretion by APE may inhibit FAS activity with subsequent suppression of triglyceride accumulation in the liver and adipose tissues. Inhibition of lipid accumulation can, in turn, lead to improvements in impaired glucose tolerance.

The anti-diabetic effects of ethanol extract from two variants of Artemisia princeps Pampanini in C57BL/KsJ- db/ db mice

The anti-diabetic effects of two variants of Artemisia princeps Pampanini, sajabalssuk (SB) and sajuarissuk (SS), were investigated in type 2 diabetic animal using their ethanol extracts. Male C57BL/KsJ- db/ db ( db/ db) mice were divided into control, SB ethanol extract (SBE), SS ethanol extract (SSE), or rosiglitazone (RG) groups and their age-matched littermates ( db/+) were used. Supplementation of the SBE (0.171 g/100 g diet), SSE (0.154 g/100 g diet), and RG (0.005 g/100 g diet) improved glucose and insulin tolerance and significantly lowered blood glycosylated hemoglobin levels, as compared to the control group. Plasma insulin, C-peptide and glucagon levels in db/ db mice were higher in the db/+ mice, however these values were significantly lowered by SBE, SSE or RG-supplement. Hepatic GK activity was significantly lower in the db/ db mice than in the db/+ mice, while hepatic G6Pase activity was vice versa. Supplementation of SBE, SSE and RG reversed these hepatic glucose-regulating enzyme activities. In addition, SBE and SSE markedly increased the hepatic glycogen content and muscle ratio as compared to the control group, but they did not alter the food intake, body weight and plasma leptin level. The RG group, however, showed a significant increase in the food intake, body weight and plasma leptin. These results suggest that SBE and SSE exert an anti-diabetic effect in type 2 diabetic mice.

Hypoglycemic and antidiabetic effect of ethanolic extract of leaves of Annona squamosa L. in experimental animals

The ethanolic extract of Annona squamosa L. (Annonaceae) leaves was administered orally at different doses to normal as well as streptozotocin (STZ)-induced diabetic rats and alloxan-induced diabetic rabbits. The dose of 350 mg/kg body weight (bw) reduced the fasting blood glucose (FBG) level by 6.0% within 1 h, whereas, the peak blood glucose at 1 h during glucose tolerance test (GTT) was reduced by 17.1% in normal rats. The same dose of ethanolic extract reduced FBG by 26.8% and improved glucose tolerance by 38.5 and 40.6% at 1 and 2 h, respectively, during GTT in alloxan-induced diabetic rabbits. In STZ-diabetic rats, a fall of 13.0% in FBG and an improvement in glucose tolerance by 37.2 and 60.6% at 1 and 2 h, respectively, was observed during GTT. The dose of 350 mg/kg bw of ethanolic extract in 10-day treatment of a group of STZ-diabetic rats produced 73.3% fall in FBG level and no sugar was observed in fasting urine. Treatment of severely-diabetic rabbits for 15 days with a dose of 350 mg/kg of extract reduce FBG by 52.7% and urine sugar by 75%. It brought about fall in the level of total cholesterol (TC) by 49.3% with increase of 30.3% in high-density lipoprotein (HDL) and decrease of 71.9 and 28.7% in low-density lipoprotein (LDL) and triglycerides (TG) levels, respectively.

Phytochemical Screening and Antidiabetic Activity Test of Extracts and Fractions of Lactuca Indica (L.) In Streptozotocin-Induced Diabetic Mice

Objectives: The purpose of this study was to determine the antidiabetic effect of ethanol extract and Lactuca indica leaf fraction to determine the effective dose of mice induced with streptozotocin compared with metformin.&#x0D; Design: The design of this study was experimental in which the extraction and fraction of Lactuca indica leaves were tested for the value of decreasing blood glucose levels of mice after induction of streptozotocin. Antidiabetic activity tests were divided into 12 groups. Group I (baseline) group II (negative control) were given CMC 0.5%, Group III (positive control) were given metformin 65 mg/kg BW, while Groups IV to XII were given Lactuca indica leaf extract and fractions at their respective doses -each 100, 150 and 200 mg/kg BW&#x0D; Interventions: The variable that was intervened in this study was the concentration of extract used&#x0D; Main outcome measure: The main measurement results in this study were to determine extracts and fractions that we're able to reduce blood glucose levels in mice.&#x0D; Results: The antidiabetic effect of Lactuca indica leaves shows that EELL, EAFLL and NHFLL have antidiabetic effects, this is supported by the chemical content contained in the extracts, namely flavonoids, tannins, saponins, glycosides and triterpenoids/steroids. The most effective activity to reduce blood glucose levels in streptozotocin-induced mice is EAFLL 100 mg/kg BW&#x0D; Conclusion: ethyl acetate fraction of Lactuca indica leaves has an effective antidiabetic activity at a dose of 200 mg/kg BW has given antidiabetic activity in mice induced by STZ, on the 9th day BGL mice have dropped below 120 mg/dl.&#x0D;