Antidiabetic effect of some medicinal plants of Oriental Morocco in neonatal non-insulin-dependent diabetes mellitus rats

2010 ◽  
Vol 29 (10) ◽  
pp. 865-871 ◽  
Author(s):  
Mohamed Bnouham ◽  
Fatima Zahra Merhfour ◽  
Abderrahim Ziyyat ◽  
Mohamed Aziz ◽  
Abdelkhaleq Legssyer ◽  
...  

The goal of the present study is to test the effect of water extract (WE) of four medicinal plants used as antidiabetics in Eastern Morocco (Arbutus unedo: Au, Ammoïdes pusilla: Ap, Thymelaea hirsuta: Th, and Urtica dioïca: Ud). These plants are used in cooking to bring out the flavor in a dish or to complement it. The first experiment was realized in order to determine the antidiabetic effect of the WE of these plants during 5 weeks’ treatment. Seven groups of Wistar rats were used: Healthy controls, neonatal streptozotocin (n-stz) induced-diabetic rats (90 mg/kg; intraperitoneally [i.p.]), n-stz + tolbutamide (400 mg/l), and 4 groups n-stz + WE of plants (400 mg/l, drink water). The percentages of Plasma glucose lowering effect were, respectively for Au, Ap, Th, Ud and tolbutamide: 31.6 % p<0.01, 27.4 % p<0.05, 38.2 % p<0.01, 13 % and 33.9 % p<0.05 when compared with untreated diabetic controls. In a second experiment, oral glucose tolerance tests were carried out in n-stz induced-diabetic rats. The i.p. administration of the water extract (WE) of Ap and Ud (150 mg/kg) 30 minutes before the glucose overload (2 g/kg) showed a significant reduction glycemia, respectively of 36 % at 60 min (p<0.05) and 50 % at 180 min (p<0.05) after glucose overload compared with controls. In contrast, the effect of WE of Au and Th (150 mg/kg, i.p.) was not significant. The in vitro study of glucose utilization by isolated rat hemidiaphragm suggests that these extracts in combination with insulin potentiate its activity and enhance the utilization of glucose. In conclusion, it seems that these plants possess antidiabetic activity.

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Mohamed Akram Melakhessou ◽  
Salah Eddine Marref ◽  
Naima Benkiki ◽  
Cherine Marref ◽  
Imene Becheker ◽  
...  

Abstract Background Diabetes mellitus is a serious complex multifactorial disorder that imposes huge health and economic burden on societies. Because the currently available medications have many drawbacks, it's important to look for alternative therapies. Medicinal plants utilized in folk medicine are ideal candidates. Therefore, this work assessed the antidiabetic action of n-butanol extract from the whole plant Atractylis flava Desf (BEAF). These ethnomedicinal properties of BEAF were scientifically validated using in vitro and in vivo assays. In vitro antidiabetic effect of the BEAF was conducted using α-Glucosidase and α-Amylase assays. While the antihyperglycemic activity was assessed using two rat models: Alloxan-induced diabetic rats and oral glucose challenged rats. Experimental diabetes was induced by a single intraperitoneal injection of alloxan at a dose of 150 mg/kg and animals with fasting blood glucose levels (BGL) > 200 mg/dL were considered diabetic. Glibenclamide (5 mg/kg) was used as a typical drug. Results The BEAF at all tested dose levels (100, 250, and 500 mg/kg) showed a significant decrease in blood glucose level in all the two animal models. Besides, the plant extract exhibited a potent inhibitory effect on α-Amylase and α-Glucosidase activity at a concentration of 1000 µg/mL with 76.17% and 89.37%, respectively. Conclusion BEAF exerts in vitro and in vivo antidiabetic effects, these results suggest that the plant extract can be a therapeutic resource in the treatment of diabetes and hyperlipidemia.


2016 ◽  
Vol 9 (1) ◽  
pp. 44 ◽  
Author(s):  
Seema Kohli ◽  
Megha Sharma ◽  
Abhisek Pal

Objective: To develop and evaluate floating type gastro-retentive dosage form, appropriate for controlled release of repaglinide (RG) having a narrow therapeutic window.Methods: Repaglinide loaded microspheres (MS) using biological macromolecule ethylcellulose (EC) was prepared by a solvent diffusion-evaporation technique using polyvinyl alcohol (PVA) emulsifier. Compatibility of drug and polymer was studied by Fourier-transform infrared spectroscopy (FTIR). During formulation, various process optimisation parameters studied were stirring speed, the concentration of drug, polymer and emulsifier. Characterization and in vitro evaluation was performed. In vivo antidiabetic activity was performed on alloxan induced diabetic rats followed by histopathological screening.Results: The average particle size was in the range of 174-243 µm. Yield, entrapment and buoyancy of microspheres were 68.4­­-79.8, 58.6-73.1 and 71.8-84.1% respectively. 65.1% release of drug from optimised formulation was obtained which follows first-order kinetics (r2 = 0.989). Optimised formulation treated group shows significant (p<0.01) decrease in glucose level of blood as compared to pure drug treated group during the later hours of study with satisfactory results of histology.Conclusion: The investigation revealed the promising potential of gastro retentive microspheres for delivering RG for the treatment of non-insulin dependent diabetes mellitus (NIDDM).


Author(s):  
Venkatesh Sama ◽  
Rajini T ◽  
Humera Afrooz ◽  
Balaraju P ◽  
B. Madhava Reddy ◽  
...  

Plants represent a major potential source of drugs for treating diabetes. The study of plants having antidiabetic activity may give a new approach in the treatment of diabetes mellitus. Tragia plukenetii is traditionally claimed to be useful in the treatment of diabetes. The present study was intended to evaluate the antihyperglycemic activity of aqueous ethanolic extract on normal fasted, glucose loaded and alloxan induced diabetic rats, at an oral dose of 75, 150 and 300 mg/kg in male Wistar rats. The alcoholic extract has not produced any hypoglycemia in normal fasted rats. The ethanolic extract has displayed a significant dose dependent antihyperglycemic activity in oral glucose tolerance test and in alloxan induced diabetic rats at an oral dose of 150 and 300 mg/kg. The ethanolic extract has effectively scavenged the stable free DPPH radical in-vitro. It is concluded that Tragia plukenetii aerial parts alcoholic extract is effective in controlling blood glucose levels in diabetic rats.


1985 ◽  
Vol 5 (3) ◽  
pp. 215-221 ◽  
Author(s):  
A. J. bone ◽  
C. S. T. Hii ◽  
D. Brown ◽  
W. Smith ◽  
S. L. Howell

(−)-Epicatechin has previously been suggested to rapidly reverse alloxan diabetes in rats. We have assessed the therapeutic value of the compound in two further animal models of insulin-dependent diabetes mellitus, namely streptozotocin – diabetic rats and the spontaneously diabetic BB/E rat. There was no indication of a reversal of established diabetes in either the streptozotocin-diabetic or the spontaneously diabetic BB/E rats. Moreover, epicatechin also failed to halt the progression of the disease in prediabetic BB/E rats. Earlier claims of the potential use of epicatechin as an antidiabetic agent must therefore be treated with some caution.


2018 ◽  
Vol 5 (2) ◽  
pp. 279-283
Author(s):  
Frengki Frengki ◽  
Deddi Prima ◽  
Fatma Sri Wahyuni ◽  
Daan Khambri ◽  
Henny Vanda ◽  
...  

Several of Calophyllums genus have been searched and proven as medicinal plants and Calophyllum macrophyllum is one of its genus. We have been isolated a compound from ethyl acetate fraction of the stem-bark. The compound was flavan-3-ol (5,7,2’,5’-tetrahydroxy flavan-3-ol). This research aimed to determine inhibition antidiabetic activity and affinity of its compound on α-glycosidase enzyme. In vitro antidiabetic effect shown by IC50 9.10 µg/ml and docking by Arguslab 4.01 shown by ΔG -10,24 kkal/mol as in silico test. The inhibition activity of flavan-3-ol against the α-glucosidase enzyme that is very strong shows its promising potential as a candidate for antidiabetic drugs.


2016 ◽  
Vol 23 (2) ◽  
pp. 183-190 ◽  
Author(s):  
Mohammad Reza Panjeshahin ◽  
Mohammad Azadbakht ◽  
Niattollah Akbari

AbstractBackground and aim: Hydroalcoholic (70°) extract of leaves of Myrtus communis has been shown to have antidiabetic effect in streptozotocin induced diabetic rats in our previous study. In this study, we intended to determine the components of the mentioned extract and identify the mechanism for its action.Materials and Methods: The leaves of Myrtus communis were extracted using petroleum ether by soxhlet. 100 g of the powder remaining in the strainer soxhlet apparatus were placed in two different percolators. The extraction was carried out by percolation method with ethanol-water (1-1) or distilled water in 72 hours. The remaining powder of water extract was further extracted using again ethanol (percolation method). The study was conducted on forty-eight matured male Charles-River rats (200-300 g) divided into 6 groups (n=8). Diabetes mellitus was induced by single intraperitoneal injection of 35 mg/kg of streptozotocin (STZ). Hydroalcoholic, water, and ethanol extracts of Myrtus communis were used at the dose of 4, 2, and respectively 2 g/kg body weight per day for 5 days. All extracts were given orally by gastric tube.Results: We found that the total hydroalcoholic extract of Myrtus communis leaves showed a moderate antidiabetic effect. In this study, we showed that the ethanolic extract of leaves (2 g/kg) had a better hypoglycemic effect in diabetic rats compared with the aqueous extract (p < 0.05). Our results also showed that the oral administration of the ethanolic extract (2 g/kg) had an additive effect on the hypoglycemic action of glibenclamide (oral administration 5 mg/kg) in rats.Conclusion: A review of previous researches on leaves of Myrtus communis and also the present study suggests that the extracts may stimulate the β-cells of pancreas to release insulin.


2020 ◽  
Vol 16 (1) ◽  
pp. 33-41
Author(s):  
Mohini C. Upadhye ◽  
Uday Deokate ◽  
Rohini Pujari ◽  
Vishnu Thakare

Background: Ficus glomerata (F. glomerata) Linn. Family Moraceace is a large tree found all over India including outer Himalayan ranges, Punjab, Chota Nagpur, Bihar, Orissa, West Bengal, Rajasthan, Deccan and also as a common plant in South India. It is planted around the home and temples. It is cultivated throughout the year, distributed in evergreen forests and moist localities. Objective: The Ethanolic Extract of roots of F. Glomerata (EEFG) belonging to the family Moraceace, was investigated for its antidiabetic activity using alloxan induced diabetic rats. Methods: Thirty rats were divided into 5 groups having 6 rats in each group. The alloxan was administered to the rats of all groups except normal control group through intraperitoneal route at a concentration of 140mg/kg body weight. A dose of 100mg/kg and 200 mg/kg body weight of EEFG was administered to alloxan induced diabetic rats. The administration of the extract was lasted for 11 days. Effectiveness of the extract on glucose, cholesterol, triglycerides, and high density lipoprotein and protein concentrations was analyzed. Results: Significant (p<0.05) reduction in the levels of glucose, cholesterol, triglyceride of the diabetic rats was observed after treatment with ethanolic extract. After subjecting to oral glucose tolerance test EEFG also showed significant improvement in glucose tolerance. Conclusion: F. glomerata root ethanolic extract showed that it possesses antidiabetic effect and can be found useful for the management of diabetes mellitus.


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