Evaluation Of Antidiabetic Activity Research Articles

Nanodispersions stabilized by β-cyclodextrin nanosponges: application for simultaneous enhancement of bioactivity and stability of sage essential oil

The aim of this work was to stabilize oil-in-water nanoemulsion containing sage (salvia officinalis) essential oil, for enhancing its physicochemical stability and enlarging its industrial applications. New β-cyclodextrin nanosponges were synthesized by polycondensation using naphthalene dicarboxylic acid as cross-linking agent, the latter system was characterized by FTIR spectroscopy, SEM, BET, and powder XRD. Nanoemulsions stabilized by free β-cyclodextrin or nanosponges were prepared, their physicochemical properties were determined (particles size, zeta potential, viscosity, turbidity, and essential oil content) and their stability was studied at different storage temperatures (4 °C, 20 °C, and 40 °C) during 3 months. Pharmaceutical application of prepared nanoemulsions was investigated in vitro by dissolution test study and in vivo by their antidiabetic activity evaluation in rats. Sage essential oil nanoemulsion stabilized by β-cyclodextrin-naphthalene dicarboxylic acid nanosponges presents very high stability and promising uses in pharmaceutical industry.

Preparation and characterization of D. opposita Thunb polysaccharide-zinc inclusion complex and evaluation of anti-diabetic activities

In the present work, Dioscorea opposita Thunb polysaccharide-zinc (DPS-zinc) inclusion complex was synthesized for the first time and its anti-diabetes activities against Streptozotocin (STZ)-induced diabetic rats were assayed. The detail structural and morphological analysis of as-prepared DPS-zinc complex was done by using different spectroscopic and microscopic methods. The pharmacological study revealed that DPS-zinc presented a potent hypoglycemic effect on STZ-induced diabetic rats, decreased the glucose and insulin levels, reduced malondialdehyde (MDA) contents and increased SOD and T-AOC activities significantly in liver. The levels of T-CHO, TG and LDL-C in serum were dramatically decreased while HDL-C level was increased with the treatment of proposed inclusion complex. In brief, DPS-zinc could be considered as a potential candidate for developing an ingredient of functional foods for zinc supplements with the hypoglycemic action.

Evaluation of antidiabetic activity of bud and flower of Avaram Senna (Cassia auriculata L.) In high fat diet and streptozotocin induced diabetic rats.

Type 2 Diabetes Mellitus (T2DM) is very common metabolic disorder affecting people of all age groups. The change in life style and environmental factors are the considerable factors which are involved in the development of the disorder. The different parts of medicinal plants vary in their composition of bioactive compounds. There are reports on antidiabetic activity of C. auriculata L. flower and leaves. Traditionally bud of C. auriculata L. is used to treat diabetes rather than flower. This study aims to explore the antidiabetic efficiency of bud and flower and to identify the differential composition of phycompounds present in bud and flower parts of C. auriculata L. The compounds present in the bud and flower parts were identified using LC-ESI/MS analysis. Antidiabetic activity of C. auriculata L. bud and flower parts was studied in high fat diet (HFD) and streptozotocin (STZ) induced diabetic rats. During which parameters such as feed intake, water intake, and body weight were monitored. After 21 days of the study, blood parameters like insulin, glucose, lipid profile, hepatic function test, renal function test and oxidative stress markers were analysed. Real time PCR was done to monitor the expression of IRS2 and GRIA2 genes. The LC-ESI/MS analysis showed the presence of various phenolics and flavonoid compounds specific to bud and flower parts. The antidiabetic activity results showed that the animal treated with C. auriculata L. bud ethanol extract (CABE500) could better reverse and control the progression of the disease compared to the flower ethanol extract. The gene expression studies revealed that regulation of IRS2 gene occurred in bud but not in flower extract treated animal livers and no differential expression of GRIA2 gene in all the experimental groups. C. auriculata L. bud extract can potentially better control the diabetes compared to the flower extract.

Evaluation of Antidiabetic Activity of Novel Diarylsulfonylurea-Chalcone Hybrids in Streptozotocin-Induced Diabetic Models in Rats

Introduction: The aim of the study was to evaluate the diabetic activity of diarylsulfonylurea-chalcone hybrids on streptozotocin (STZ)-induced diabetic male albino rats. Materials and Methods: Diabetic activity of diarylsulfonylurea-chalcone hybrids at a dose of 10, 30, and 50 mg/kg body weight was evaluated. Adult male Swiss albino rats of six numbers in each group were undertaken for study and evaluated. Results: The results of in vivo hypoglycemic and antihyperglycemic activity of the synthesized diarylsulfonylurea-chalcone hybrid molecules (II.1-28) showed that all the compounds were found to possess moderate to potential ability to reduce blood glucose levels in normoglycemic and STZ-induced type 2 diabetic rats. Conclusions: The diarylsulfonylurea-chalcone hybrids have potent diabetic activity in the male albino rat.

Chemo-biological evaluation of antidiabetic activity of Mentha arvensis L. and its role in inhibition of advanced glycation end products

BackgroundThere has been enormous curiosity in the development of alternative plant based medicines to control diabetes, oxidative stress and related disorders. One of the therapeutic approaches is to reduce postprandial release of glucose in the blood. Two key enzymes that are involved in reducing postprandial glucose are α-amylase and α-glucosidase. Mentha arvensis L. has been traditionally used by several tribes as a medicinal plant to treat various disorders. ObjectiveThe present study was undertaken to test M. arvenisis L. for inhibition of postprandial hyperglycemia. Material and methodWe performed various in vitro and in vivo tests to evaluate efficacy of M. arvenisis L. for antidiabetic activity (postprandial hyperglycemia). ResultsMethanolic extract of M. arvensis L. leaves showed DPPH free radical scavenging activity (more than 78% μg/μl) and high antiglycation potential (more than 90% inhibition of AGE formation). Methanolic extract also showed remarkable inhibitory effects on α-amylase (more than 50% μg/μl) and α-glucosidase (68% μg/μl) and significant inhibition of postprandial hyperglycemia in starch induced diabetic Wistar rats. ConclusionThe non-insulin dependent antidiabetic or inhibition of postprandial hyperglycemic activity of methanolic extract of M. arvensis L. leaves was shown by using in vitro and in vivo approaches in the present study.

Evaluation of Anti-Diabetic Activity of the Plant Leaves of Verbascum thapsus in Alloxan Induced Diabetic Rats

Evaluation of Anti-Diabetic Activity of the Plant Leaves of Verbascum thapsus in Alloxan Induced Diabetic Rats

Extraction and Isolation of Bioactive Molecule Lycopene from Water Melon and Evaluation of Anti Diabetic Activity against STZ Induced Rats

Despite the popular belief that watermelon is just water and sugar, watermelon is actually a nutrient dense food. It provides high levels of vitamins, minerals, and antioxidants and just a small number of calories. Water melons have become synonymous with summer and picnics, and for good reason. Their refreshing quality and sweet taste help to combat the heat and provide a guilt-free, low maintenance dessert. Along with cantaloupe and honeydew, watermelons are a member of the botanical family Cucurbitaceae. There are five common types of watermelon: seeded, seedless, mini (also known as personal), yellow, and orange. The objective of the present research work was to evaluate in vivo anti diabetic activity of ethanolic extract of water melon (EE-WMN).The present experimental data displayed the blood glucose level 283.5±0.4238–284.2±0.02217 mg/dL mg/dL in STZ induced diabetic rats, which was considered as severe diabetes in the glibenclamide (5 mg/kg) and EE-WMN (100, 200 and 300 mg/kg) treated groups, the peak values of blood sugar and cholesterol and triglycerides significantly reduced on the 21st day, respectively. Hence, this experimental data displayed that the EE-WMN significantly decrease the blood glucose level in diabetic rats but values did not return to those of normal controls. Therefore, the EE- WMN executed anti diabetic activity, when compared with diabetic control. From the present experimental data, here we concluded that EE-WMN displayed potential anti diabetic activity against streptozocin induced rats at 200 and 300 mg/kg. b. wt which was proved by assessment of bioanalytes from serum and urine sample and this anti diabetic activity was mainly due to the presence of carotenoids lycopene which was characterized by UV, FT-IR, 1H and 13C-NMR, APCI, HPLC spectrometry.

Evaluation of antidiabetic activity of Ipomoea batatas L. extract in alloxan-induced diabetic rats.

Different allopathic drugs are being used for the treatment of diabetes mellitus but more emphasis are being placed on the use of medicinal plants, herbs, and natural extracts of fruits and vegetables due to their easy availability, easy consummation with low cost, and with no well-reported side effects. White skinned sweet potato (WSSP; Ipomoea batatas L.) peel-off was selected to find out its antidiabetic potential as well as to explore the effects on selected biochemical parameters in diabetes-induced Wistar rats. In young (3–4 months) and old (up to 1 year) diabetic Wistar rats, it was found that WSSP (I. batatas L.) peel-off significantly (P < 0.05) decreased blood glucose level, protein glycation level, total cholesterol, triglycerides, and low-density lipoprotein (LDL)-cholesterol. A significant (P < 0.05) increase in high-density lipoprotein (HDL)-cholesterol level after treatment was also reported. Furthermore, it was also found that WSSP peel-off also had beneficial effects on total protein concentration, albumin, globulin, and liver enzymes (serum glutamic oxaloacetic transaminase (SGOT) and serum glutamic pyruvic transaminase (SGPT)). It might be concluded that antidiabetic potential of WSSP extract is due to the presence of bioactive compounds like glycoprotein, anthocyanins, alkaloids, and flavonoids, which act as insulin-like molecules or insulin secretagogues constituents in sweet potatoes peel-off and these antidiabetic proteins were extracted out in more concentration in methanol due to its organic nature. Further research is needed to purify and quantify the antidiabetic components responsible for antidiabetic effects of WSSP and it should be available in compact dose form for the treatment of diabetic patients.

Evaluation of Anti-Diabetic Activity of the Plant Leaves of Verbascum thapsus in Alloxan Induced Diabetic Rats

Evaluation of Anti-Diabetic Activity of the Plant Leaves of Verbascum thapsus in Alloxan Induced Diabetic Rats

Evaluation of antidiabetic activity of fruit of Coriandrum sativum. Linn methanolic extract in Streptozocin induced diabetic wistar Albino rats

Background: Diabetes prevalence is estimated to increase annually. Numerous people use traditional medicine, such as India also considered as the diabetic capital in the world. Diabetes is a metabolic disorder characterized by disturbances in lipid, carbohydrate and protein metabolism. The present study to evaluate the antidiabetic potential of coriandrum sativum. linn fruits methanolic extract in streptozocin induced diabetic wistar albino rats model.Methods: Diabetes induction in wistar albino rats by administration of streptozocin (50mg/kg, i.p.) in citrate buffer. 30 wistar albino rats were divided into 5 groups (A, B, C, D, E). Group A: served as normal control, whereas Group B: diabetic control, Group C, D methanolic coriandrum sativum Linn. fruits extract (CSFME) at a dose of 100, 200mg/kg orally, Group E was given standard drug Glibenclamide (0.5mg/kg) orally. All groups are administered for the period of 14 consecutive days and blood sugar levels was measured at regular intervals up to end of the study.Results: This present research study confirms that the test drug compound CSFME has sustained oral hypoglycaemic activity and statistically significant (p ≤0.05) and which is comparable with standard drug Glibenclamide.Conclusions: This research study confirms that the CSFME has antidiabetic activity against streptozocin induced wistar diabetic albino rats. It could be a novel antidiabetic agent and also a dietary adjunct in the type 2 diabetes management and its complication. Further studies are necessary required to confirm the antidiabetic activity of individual phytochemical compounds of Coriandrum sativum.

Mass spectrometry-based phytochemical screening for hypoglycemic activity of Fagioli di Sarconi beans (Phaseolus vulgaris L.)

The present study deals with the evaluation of antidiabetic activities of Fagioli di Sarconi beans (Phaseolus vulgaris), including 21 ecotypes protected by the European Union with the mark PGI (i.e., Protected Geographical Indication), and cultivated in Basilicata (southern Italy). For this purpose, α-glucosidase and α-amylase assays were assessed; among all bean ecotypes, the tight green seed colour of Verdolino extracts exhibited the highest α-glucosidase and α-amylase inhibitory activity with IC50=1.1±0.1μg/ml and IC50=19.3±1.1μg/ml, respectively. Phytochemical compound screening of all Fagioli di Sarconi beans performed by flow injection-electrospray ionization-ultrahigh resolution mass spectrometry (uHRMS) and based on the calculation of elemental formulas from accurate m/z values, was helpful to annotate specific compounds, such as alkaloids, saponins, flavonoids, and terpenoids, which are most likely responsible for their biological activity.

Comparative evaluation of anti-diabetic activity of fresh juice and ethanolic extract of Sunderban mangrove Rhizophora mucronata Lam. leaves in animal model

Background: Mangrove flora possess compounds with potential medicinal values with unique bioactive components. Traditionally Rhizophora mucronata, a mangrove has been used extensively for the treatment of diabetes. Studies revealed that, the leaves of Rhizophora (Bhora) had promising anti-diabetic action in rat model.Methods: A comparative analysis of the anti-diabetic action of fresh juice and ethanolic extract of Rhizophora mucronata leaves was carried out in Streptozotocin induced diabetic model and the different biochemical parameters were evaluated.Results: Present research explored a comparative analysis of the anti-diabetic action of fresh juice and ethanolic extract of leaves of Rhizophora mucronata Lam. in Streptozotocin induced diabetic model. The ethanolic extract showed more potent effect in lowering the elevated blood sugar in the diabetic rats, 200mg/kg was the most effective dose for both the extracts. The ethanol extract was more beneficial having potent lipid lowering action along with anti-hyperglycemic property.Conclusions: This supports the scientific validation for using Rhizophora mucronata leaves in the treatment of diabetes as traditional folk medicine. Identification of the bioactive molecule is under process.

Evaluation of Antidiabetic Activity of Hydroalcoholic Extract of Cassia fistula Linn. pod in Streptozotocin-Induced Diabetic Rats

Background: Diabetes mellitus (DM) is a global health problem and the incidence of DM is increasing at alarming rate all over the world. Many Indian medicinal plants have been reported to possess potential antidiabetic activity and could play important role in the management diabetes. Objective: The present study aimed to evaluate antidiabetic activities of 70% ethanolic extract of Cassia fistula pod in streptozotocin-induced diabetic rats. Materials and Methods: Diabetes was induced in male Wistar rats by single intraperitoneal injection of streptozotocin (60 mg/kg b.wt.). The diabetic rats were administered orally with C. fistula pod extract at three different doses (100, 250 and 500 mg/kg b.wt./day) for 60 days. The results were compared with standard drug glibenclamide (5 mg/kg b.wt./day) treated rats. Results: The streptozotocin treated diabetic control rats showed a significant increase in the blood glucose and glycosylated hemoglobin (HbA1c) levels with a concomitant decrease in the body weight and glycogen content in the liver as compared to normal control rats. Oral administration of C. fistula pod extract (100, 250 and 500 mg/kg b.wt./day) or glibenclamide for 60 days showed significant reduction in the blood glucose and HbA1c levels and an elevation in the body weight and hepatic glycogen content as compared to diabetic control rats. Furthermore, treatment with extract (500 mg/kg b.wt.) also showed improvement of oral glucose tolerance test (OGTT) in diabetic rats. These results were comparable to glibenclamide. Conclusion: The results of present study showed that C. fistula pod extract possess significant antihyperglycemic activity and supports the traditional use of C. fistula pod for the treatment of diabetes mellitus.

Evaluation of anti-diabetic activity of glycyrrhizin-loaded nanoparticles in nicotinamide-streptozotocin-induced diabetic rats

Glycyrrhizin is an active constituent of the roots and rhizomes of Glycyrrhiza glabra and has anti-hyperglycemic effects. In this study, nanoparticles (NPs) loaded with glycyrrhizin or metformin were evaluated in vivo for their anti-hyperglycemic potency towards type-II diabetes in rats. The NPs were produced via the ionotropic gelation method using the biocompatible polymers chitosan and gum arabic. The polymer concentration was optimized using the 32 factorial method to acquire both minimum particle size and maximum encapsulation efficiency. The NPs were then characterized with respect to particle size, encapsulation efficiency, stability, chemical interactions, and in vitro drug dissolution profiles using spectroscopic and microscopic analysis. Furthermore, glycyrrhizin and metformin and their nanoformulations were administered for 21 successive days to diabetic rats. Glycyrrhizin-loaded NPs had significant anti-diabetic effects even though they contained approximately one quarter of the dosage relative to the pure form.

Evaluation of Antidiabetic Activity of Carnosol (Phenolic Diterpene in Rosemary) in Streptozotocin-Induced Diabetic Rats.

Carnosol (CS) is an ortho-diphenolic diterpene in rosemary with great antioxidant potential. This study was designed to investigate the hypolipidemic, anti-oxidant, and anti-diabetic activities of CS. In our experiment, the rats were divided into the following groups of 8 animals each: control, untreated diabetic, three CS (1, 5, 10 mg/kg/day)-treated diabetic groups. On the first day of the study, the diabetic groups were given streptozotocin (STZ) in a single intraperitoneal (i.p.) injection at a dose of 60 mg/kg for induction of diabetes. CS was injected (i.p.) to the treatment groups from 3 days after STZ administration during a period of 4 weeks. At the end of the experimental period, we assessed the serum levels of glucose, IL-6, TNF-α, malondialdehyde (MDA), glutathione-s transferase (GST), superoxide dismutase (SOD), catalase (CAT) activities, triglycerides (TG), total cholesterol (TC), low density lipoprotein (LDL-C), and high density lipoprotein (HDL-C). The results indicated that STZ caused an elevation of serum glucose, IL-6, TNF-α, MDA, TG, TC, LDL-C, and it also made a reduction of serum GST, SOD, CAT, and HDL-C (p<0.001). The findings showed amelioration in the serum glucose, IL-6, TNF-α, MDA, TG, TC, LDL-C, GST, SOD, CAT, and HDL-C in the CS-treated diabetic groups versus the untreated group, in a dose dependent manner (p < 0.001). In conclusion, the present investigation proposes that CS may be improved diabetes and its complications by modulation of oxidative stress and inflammatory responses.

Evaluation of Antidiabetic Activity of Aqueous Extract of Mangifera Indica Leaves in Alloxan Induced Diabetic Rats

Evaluation of Antidiabetic Activity of Aqueous Extract of Mangifera Indica Leaves in Alloxan Induced Diabetic Rats

Bio-extract-mediated ZnO nanoparticles: microwave-assisted synthesis, characterization and antidiabetic activity evaluation

Herein, ZnO nanoparticles were synthesized using microwave-assisted method in the presence of Vaccinium arctostaphylos L, fruits extract. The structure, size, morphology and optical properties of the samples were characterized by XRD, SEM, TEM, EDX, FT-IR, UV-vis DRS and TGA analysis. A decrease in crystallite size was observed for the biologically synthesized ZnO compared to the chemically synthesized sample. Furthermore, the existence of organic moieties over the biologically synthesized ZnO NPs was approved using characterizing methods. Then, the alloxan-induced diabetic rats were divided into not treated (diabetic control group), and the groups received: insulin, chemically synthesized ZnO, plant extract, biologically synthesized ZnO with a normal healthy control group. After treatment, fasting blood glucose (FBS), high-density lipoprotein (HDL), total triglyceride (TG), total cholesterol (TC) and insulin were measured. Analysis showed a significant decrease in FBS and increase in HDL levels in all groups under treatment. However, the results for cholesterol reduction were only significant for the group treated by biologically synthesized ZnO. Despite the changes in the triglyceride and insulin levels, the results were not significant. For all the studied parameters, bio-mediated ZnO NPs were found the most effective in treating the alloxan-diabetic rats compared to the other studied treatment agents.

Evaluation of Anti-diabetic Activity of Acacia tortilis (Forssk.) Hayne Leaf Extract in Streptozotocin-induced Diabetic Rats

Evaluation of Anti-diabetic Activity of Acacia tortilis (Forssk.) Hayne Leaf Extract in Streptozotocin-induced Diabetic Rats

IN VIVO ANTI-DIABETIC ACTIVITY EVALUATION OF THE BARK OF CASCABELA THEVETIA L. IN STREPTOZOTOCIN INDUCED DIABETIC RATS

Objective: In this study, the plant Cascabela thevetia L. was selected based on ethnomedicinal documentation reports for evaluation of the antidiabetic activity. The aim of this study was to carry out acute toxicity study and in vivo evaluation of antidiabetic activity in an animal model.Methods: Firstly direct extraction of the dried bark powder was done with methanol using soxhlet apparatus. After collecting the extract, acute toxicity study was performed according to OECD (Organization for Economic Cooperation and Development) guideline 425. For in vivo evaluation of antidiabetic activity, streptozotocin (STZ) and nicotinamide induced type 2 diabetic male rat model was used. Six groups containing six animals in each were taken for the in vivo study and marked as normal control, standard control, negative control and test controls. For all the animals body weight, body temperature, blood glucose levels were determined at an interval of 5 d. After 15 d of treatment different biochemical parameters like triglyceride, cholesterol, high-density lipoprotein (HDL), low-density lipoprotein (LDL), alkaline phosphatase level (ALP), serum glutamic oxaloacetic transaminase (SGOT), serum glutamic pyruvic transaminase (SGPT), total protein were determined and the results were evaluated by statistically using one-way analysis of variance (ANOVA). On the 15th day, all the animals were sacrificed and histopathological study of pancreases tissue was done.Results: The effects of the test extracts in lowering the blood glucose level and maintaining other biochemical parameters in the test groups were compared with the effect of standard drug metformin hydrochloride, 10 mg/kg body weight treated group and negative control group. The data were statistically evaluated using one-way analysis of variance (ANOVA) followed by Dunnet comparison all vs control method and taking significant at p&lt;0.01. By comparing different biochemical parameters and histoarchitecture of the different test groups of animals, it was found that group V treated with 200 mg/kg body weight shows a significant effect.Conclusion: After performing the experiment it was found that the bark of Cascabela thevetia L. has the potential for blood glucose lowering activity and able to control abnormal lipids and enzymes level in blood. Further isolation of the compounds can lead to finding out the exact compound responsible for the activity.

Synthesis, characterization and evaluation of antidiabetic activity of novel indoline derivatives

Series of indoline derivatives were synthesized using N-(4-aminophenyl)indoline-1-carbothiamide as a precursor. The confirmation of synthesized compounds was done by 1H-NMR, 13C-NMR, LC-MS (ESI) and FT-IR. In vitro antidiabetic activity of synthesized indoline derivatives were examined by standard ?-amylase inhibition assay. The compounds 4a (IC50 = 52.1 µg/mL) and 4b (IC50 = 57.7 µg/mL) showed potent ?-amylase inhibition activity. The compounds 3a (IC50 = 62.2 µg/mL) and 3b (IC50 = 60.7 µg/mL) showed moderate antidiabetic activity.&#x0D; Video Clip of Methodology:&#x0D; 19 min 21 sec Full Screen Alternate