scholarly journals Antioxidant, Anti-Inflammatory and Antidiabetic Proprieties of LC-MS/MS Identified Polyphenols from Coriander Seeds

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 487
Author(s):  
Hamza Mechchate ◽  
Imane Es-safi ◽  
Amal Amaghnouje ◽  
Smahane Boukhira ◽  
Amal A. Alotaibi ◽  
...  
Keyword(s):  
Fasting Blood Glucose ◽  
Wistar Rat ◽  
Coriandrum Sativum ◽  
Oral Glucose ◽  
Diabetic Mice ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Antihyperlipidemic Activity ◽  
Anti Inflammatory ◽  
Antioxidant Effects

Coriandrum sativum L. seeds are traditionally used to treat diabetes and its complications (inflammation and formation of reactive oxygen species) around the world. The present study investigates the antidiabetic, anti-inflammatory, and antioxidant effects of the polyphenol fraction of Coriandrum sativum seeds (PCS). Diabetic mice were orally administered with PCS (25 and 50 mg/kg b.w.) for 28 days. Oral glucose tolerance (OGTT) was also evaluated along with the anti-inflammatory effect, assessed by measuring paw edema development induced with carrageenan in Wistar rat and the antioxidant activity assessed using two tests (β-carotene discoloration and DPPH). Treatment of diabetic mice with PCS for four weeks managed their high fasting blood glucose levels, improved their overall health, also revealed an excellent antihyperlipidemic activity. The OGTT result showed a potent antihyperglycemic activity, and following the anti-inflammatory and antioxidant effects, the PCS exhibited a perfect activity. LC-MS/MS result revealed the presence of 9 polyphenols. This modest work indicates that the PCS have an important antidiabetic, antihyperglycemic, antihyperlipidemic, anti-inflammatory, and antioxidant effect that can be well established treatment of diabetes and its complications.

scholarly journals Defatted Hydroethanolic Extract of Ammodaucus leucotrichus Cosson and Durieu Seeds: Antidiabetic and Anti-Inflammatory Activities

2020 ◽  
Vol 10 (24) ◽  
pp. 9147
Author(s):  
Imane Es-Safi ◽  
Hamza Mechchate ◽  
Amal Amaghnouje ◽  
Anna Calarco ◽  
Smahane Boukhira ◽  
...  
Keyword(s):  
Wistar Rats ◽  
Fasting Blood Glucose ◽  
Diabetic Mice ◽  
North African ◽  
Glucose Levels ◽  
The North ◽  
Blood Glucose Levels ◽  
Anti Inflammatory ◽  
Hydroethanolic Extract ◽  
Inflammatory Effect

The seeds of Ammodaucus leucotrichus Cosson and Durieu have been used in the North African Sahara as a traditional medicine to treat diabetes. The present study investigates the antidiabetic, antihyperglycemic, and anti-inflammatory properties of the defatted hydroethanolic extract of Ammodaucus leucotrichus (DHEAM). The antidiabetic and the antihyperglycemic studies were assessed on alloxan-induced diabetic with orally administered doses of DHEAM (100 and 200 mg/kg). At the same time, its anti-inflammatory propriety was evaluated by measuring edema development in the Wistar rats paw induced with carrageenan. Treatment of diabetic mice with DHEAM for four weeks managed their high fasting blood glucose levels, improved their overall health, and also revealed an excellent antihyperglycemic activity. Following the anti-inflammatory results, DHEAM exhibited a perfect activity. HPLC results revealed the presence of seven molecules (chlorogenic acid, 3-p-coumaroylquinic acid, gallic acid, ferulic acid, myricetin, quercetin, luteolin). This work indicates that the DHEAM has an important antidiabetic, antihyperglycemic, and anti-inflammatory effect that can be well established as a phytomedicine to treat diabetes.

scholarly journals EVALUATION OF ANTIDIABETIC AND ANTIOXIDANT EFFECTS OF ETHANOLIC LEAF EXTRACT OF ERYTHRINA ABBYSINICA LAM, EX DC

2018 ◽  
Vol 11 (8) ◽  
pp. 300
Author(s):  
Kamadyaapa Davie Rexon ◽  
Gondwe Mavuto Masopera ◽  
Shauli Mathulo ◽  
Sewani Rusike Constance ◽  
Nkeh Chungag Benedicta
Keyword(s):  
Blood Glucose ◽  
Leaf Extract ◽  
Antioxidant Properties ◽  
Diabetic Rats ◽  
Control Group ◽  
Oral Glucose ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Ethanolic Leaf Extract ◽  
Antioxidant Effects

  Objective: This study was conducted to scientifically evaluate the antidiabetic and antioxidant effects of ethanolic leaf extract of Erythrina abbysinica (EEA).Methods: Acute and sub-chronic effects of EEA at 100, 200, and 400 mg/kg/bwt and glibenclamide (GL) at 5 mg/kg/bwt. were evaluated in both normal and streptozotocin (STZ)-induced diabetic male Wistar rats (250–300 g). The acute studies were performed using oral glucose tolerance test (OGTT). In sub-chronic studies, animals were orally administered with EEA and GL daily for 6 w. Brine shrimp assay was used to determine the toxicity of EEA. 1, 1-diphenyl-2-picrylhydrazyl, ferric reducing capacity of plasma, and thiobarbituric acid reactive substances assays were used to determine antioxidant properties of EEA.Results: Following OGTT, EEA significantly (p<0.05) and dose-dependently (100, 200, and 400 mg/kg/bwt) decreased blood glucose levels in both normal and STZ-induced diabetic rats when compared with positive and negative control counterparts at all-time points, whereas GL significantly (p<0.05) decreased blood glucose only in normal rats but not in diabetic rats. Daily, oral administration of EEA for 6 w significantly (p<0.05) and dose-dependently (100, 200, and 400 mg/kg/bwt) decreased blood glucose levels in STZ-induced diabetic rats when compared with the diabetic control group. EEA revealed weak toxicity with a lethal concentration50 value of 997 μg/ml). Furthermore, EEA showed significant free radical scavenging, total antioxidant, and anti-lipid peroxidative capacities.Conclusion: The study has shed more light on the scientific basis for the use of E. abbysinica in management of diabetes in some communities of Eastern Cape of South Africa.

scholarly journals Effect of reduced dietary zinc intake on carbohydrate and Zn metabolism in the genetically diabetic mouse (C57BL/KsJ db+/db+)

1988 ◽  
Vol 60 (3) ◽  
pp. 499-507 ◽  
Author(s):  
Susan Southon ◽  
Z. Kechrid ◽  
A. J. A. Wright ◽  
Susan J. Fairweather-Tait
Keyword(s):  
Blood Glucose ◽  
Control Diet ◽  
Fasting Blood Glucose ◽  
Liver Glycogen ◽  
Diabetic Mouse ◽  
Whole Body ◽  
Diabetic Mice ◽  
Control Groups ◽  
Glucose Levels ◽  
Blood Glucose Levels

1. Male, 4–5-week-old, genetically diabetic mice (C57BL/KsJ db/db) and non-diabetic heterozygote litter-mates (C57BL/KsJ db/+)were fed on a diet containing 1 mg zinc/kg (low-Zn groups) or 54 mg Zn/kg (control groups) for 27 d. Food intakes and body-weight gain were recorded regularly. On day 28, after an overnight fast, animals were killed and blood glucose and insulin concentrations, liver glycogen, and femur and pancreatic Zn concentrations were determined.2. The consumption of the low-Zn diet had only a minimal effect on the Zn status of the mice as indicated by growth rate, food intake and femur and pancreatic Zn concentrations. In fact, diabetic mice fed on the low-Zn diet had a higher total food intake than those fed on the control diet. The low-Zn diabetic mice had higher fasting blood glucose and liver glycogen levels than their control counterparts. Fasting blood insulin concentration was unaffected by dietary regimen.3. A second experiment was performed in which the rate of loss of 65Zn, injected subcutaneously, was measured by whole-body counting in the two mouse genotypes over a 28 d period, from 4 to 5 weeks of age. The influence of feeding low-Zn or control diets was also examined. At the end of the study femur and pancreatic Zn and non-fasting blood glucose levels were determined.4. All mice fed on the low-Zn diet showed a marked reduction in whole-body 65Zn loss compared with those animals fed on the control diet. In the low-Zn groups, the loss of 65Zn from the diabetic mice was significantly greater than that from heterozygote mice. This difference was not observed in the control groups. Blood glucose levels were elevated in the low-Zn groups. Possible reasons for these observations are discussed.5. The present study demonstrates an adverse effect of reduced dietary Zn intake on glucose utilization in the genetically diabetic mouse, which occurred before any significant tissue Zn depletion became apparent.

scholarly journals Cadmium Exposure Decreases Fasting Blood Glucose Levels and Exacerbates Type-2 Diabetes in a Mouse Model

2021 ◽  
Author(s):  
Mengyang Li ◽  
Shuai Wang ◽  
Xiuxiu Liu ◽  
Zhijie Sheng ◽  
Bingyan Li ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Blood Glucose ◽  
Fasting Blood Glucose ◽  
Diabetic Group ◽  
Diabetic Mice ◽  
Hepatic Enzymes ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Cd Exposure

Abstract Purpose Although the effects of cadmium (Cd) on the development of diabetes have been extensively investigated, the relationship between Cd exposure and the severity of established diabetes is unclear. Herein, we investigate the effects of long-term exposure to Cd in a streptozotocin-induced mouse model of type 2 diabetes and the underlying mechanism. Methods C57BL/6 Mice were divided into the following four groups: 1) control group; 2) Cd-exposed group; 3) diabetic group; 4) Cd-exposed diabetic group. Cd exposure was established by the administration of 155 ppm CdCl2 in drinking water. After 25 weeks of treatment, serum fasting glucose and insulin were measured. Meanwhile, the liver and pancreas specimens were sectioned and stained with Hematoxylin and eosin. Gluconeogenesis, glycolysis, lactate concentration and fibrosis in liver were evaluated. Results Clinical signs attributable to diabetes were more apparent in Cd-exposed diabetic mice. Interestingly, Cd exposure significantly decreased fasting blood glucose levels in diabetic group. We further demonstrated that the glycolysis related hepatic enzymes, pyruvate kinase M2 (PKM-2) and lactic dehydrogenase A (LDHA) were both increased, while the gluconeogenesis related hepatic enzymes, phosphoenolpyruvate-1 (PCK-1) and glucose-6-phosphatase (G6Pase) were both decreased in Cd exposed diabetic mice, indicating that Cd increased glycolysis and inhibited gluconeogenesis in diabetic model. Moreover, lactate accumulation was noted accompanied by the increased inflammation and fibrosis in the livers of diabetic mice following Cd exposure. Conclusions Cd exposure disturbed glucose metabolism and exacerbated diabetes, providing a biological relevance that DM patients are at greater risk when exposed to Cd.

Antihyperglycemic Effect of the Aqueous Extract of Foeniculum vulgare in Normal and Streptozotocin-induced Diabetic Rats

2020 ◽  
Vol 20 (1) ◽  
pp. 54-63
Author(s):  
Fadwa El-Ouady ◽  
Nadia Lahrach ◽  
Mohammed Ajebli ◽  
Ahmed E. Haidani ◽  
Mohamed Eddouks
Keyword(s):  
Blood Glucose ◽  
Aqueous Extract ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
Oral Glucose ◽  
Foeniculum Vulgare ◽  
High Blood Glucose ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Antioxidant Effects

Background: Diabetes mellitus is associated with high blood glucose levels due to insulin shortcoming (insulinopenia) or defective insulin action. The objective of the study was to investigate the antidiabetic and antioxidant effects of Foeniculum vulgare in streptozotocin-induced diabetic rat. Methods: The effects of the leaves aqueous extract (LAE) of Foeniculum vulgare (F. vulgare) at a dose of 10 mg/kg on blood glucose levels were evaluated in normal and streptozotocin (STZ)- induced diabetic rats. Histopathological changes were also evaluated in liver in STZ-induced rats. Results: Single oral administration of F. vulgare LAE reduced blood glucose levels 6 h after administration in STZ diabetic rats (p<0.0001). Furthermore, blood glucose levels were decreased in both normal (p<0.05) and STZ diabetic rats (p<0.0001) after the fifteenth day of treatment. During this test, both groups did not show any significant change in their body weight. Moreover, this aqueous extract improved oral glucose tolerance in diabetic rats and revealed a positive effect on liver histology. On the other hand, the extract used in this experiment showed an inhibitory concentration (IC50) of 50% of free radicals with a concentration of 43±1.19 µg/ml. While the synthetic antioxidant (BHT) had an IC50 equal to 22.67±2.17µg /ml. Conclusion: This study demonstrates the antihyperglycemic, hypoglycemic and antioxidant effects of the leaves of F. vulgare in normal and diabetic rats.

The diagnosis of diabetes mellitus

1983 ◽  
Vol 104 (4_Suppl) ◽  
pp. S11-S17
Author(s):  
Bengt Scherstén ◽  
Per-Olof Bitzén
Keyword(s):  
Diabetes Mellitus ◽  
Blood Glucose ◽  
Glucose Tolerance ◽  
Glucose Tolerance Test ◽  
Fasting Blood Glucose ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Glucose Levels ◽  
Asymptomatic Subject ◽  
Blood Glucose Levels

ABSTRACT. The procedure for diagnosing diabetes mellitus when accompanied by classical symptoms is based on random blood glucose levels of 7 mmol/l or more. Problem of diagnosing diabetes in the asymptomatic subject remains difficult. A procedure based on fasting blood glucose levels below 5.5 mmol/l in normals and reproducible values at or above 7 mmol/l in diabetics is proposed. In cases with fasting blood glucose values between 5.5 and 7 mmol/l standardized oral glucose tolerance test is recommended. The diagnostic criteria for normality, impaired glucose tolerance and for diabetes are evaluated against the results of a 10–14 years prospective study.

Caveolin gene transfer improves glucose metabolism in diabetic mice

2010 ◽  
Vol 298 (3) ◽  
pp. C450-C456 ◽  
Author(s):  
Koji Otsu ◽  
Yoshiyuki Toya ◽  
Jin Oshikawa ◽  
Reiko Kurotani ◽  
Takuya Yazawa ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Glucose Metabolism ◽  
Gene Transfer ◽  
Insulin Receptor ◽  
Glycogen Synthesis ◽  
Fasting Blood Glucose ◽  
Hepatic Glycogen ◽  
Diabetic Mice ◽  
Glucose Levels ◽  
Blood Glucose Levels

Caveolin, a member of the membrane-anchoring protein family, accumulates various growth receptors in caveolae and inhibits their function. Upregulation of caveolin attenuates cellular proliferation and growth. However, the role of caveolin in regulating insulin signals remains controversial. Here, we demonstrate that caveolin potently enhances insulin receptor (IR) signaling when overexpressed in the liver in vivo. Adenovirus-mediated gene transfer was used to overexpress caveolin specifically in the liver of diabetic obese mice, which were generated with a high-fat diet. Expression of molecules involved in IR signaling, such as IR or Akt, remained unchanged after gene transfer. However, hepatic glycogen synthesis was markedly increased with a decrease in phosphoenolpyruvate carboxykinase protein expression. Insulin sensitivity was increased after caveolin gene transfer as determined by decreased blood glucose levels in response to insulin injection and fasting blood glucose levels. Glucose tolerant test performance was also improved. Similar improvements were obtained in KKA y genetically diabetic mice. Adenovirus-mediated overexpression of caveolin-3 in hepatic cells also enhanced IR signaling, as shown by increased phosphorylation of IR in response to insulin stimulation and higher glycogen synthesis at baseline. These effects were attributed mostly to increased insulin receptor activity and caveolin-mediated, direct inhibition of protein tyrosine phosphatase 1B, which was increased in obese mouse livers. In conclusion, our results suggest that caveolin is an important regulator of glucose metabolism that can enhance insulin signals.

scholarly journals Hypoglycemic Activity and Antioxidative Stress of Extracts and Corymbiferin fromSwertia bimaculata In VitroandIn Vivo

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Zhaoxia Liu ◽  
Luosheng Wan ◽  
Yuedong Yue ◽  
Zuoqi Xiao ◽  
Yutang Zhang ◽  
...  
Keyword(s):  
Serum Insulin ◽  
Low Density Lipoprotein ◽  
Fasting Blood Glucose ◽  
Density Lipoprotein ◽  
Glucose Consumption ◽  
Diabetic Rats ◽  
Oral Glucose ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Alternative Agent

The present study was to investigate the anti-diabetic activities ofSwertia bimaculata. Based on the glucose consumption ofS. bimaculataextractsand different fractions (petroleum, dichloromethane, ethyl acetate,n-butanol and water extracts) in 3T3-L1 adipocyte assay, ethanol (ETH) and dichloromethane (DTH) extracts had the most effective potency. Furthermore, ETH, DTH and corymbiferin (the most abundant component of DTH) were evaluated for anti-diabetic effects in high fat and sucrose fed combined with low dose streptozocin induced diabetic rats. DTH and corymbiferin displayed remarkable anti-diabetic activities. The fasting blood glucose levels were significantly decreased, while the serum insulin levels were obviously increased. The oral glucose tolerance was also improved. The lowed serum total cholesterol, low density lipoprotein (LDL) and triglyceride levels and increased ratio of HDL (high density lipoprotein)/LDL were observed. The insulin sensitivity was improved on the basis of increased expressions of insulin-receptor substrate-2, phosphatidylinositol 3-kinase and Ser/Thr kinase AKT2. And also DTH and corymbiferin improved antioxidant capacity and carbohydrate metabolism in diabetic rats, along with the improvement of histopathology of livers and pancreaticβcells. Corymbiferin was one of active constituents, responsible for anti-diabetic properties. Therefore,S. bimaculatacould be considered as an alternative agent against diabetes mellitus.

Antidiabetic Effect of Aqueous Corrigiola telephiifolia in Streptozotocin- Induced Diabetic Rats

2020 ◽  
Vol 10 (1) ◽  
pp. 61-68 ◽  
Author(s):  
Morad Hebi ◽  
Mohamed Eddouks
Keyword(s):  
Blood Glucose ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Diabetic Rats ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Phytochemical Screening ◽  
Antidiabetic Effect ◽  
Glucose Levels ◽  
Blood Glucose Levels

Background: Corrigiola telephiifolia Pourr, is a perennial species, woody distributed throughout the north of Africa. This plant is used in traditional Mediterranean preparations and has many traditional uses especially treatment of diabetes. Aim/Methods: The current research was carried out to evaluate the antidiabetic effect of Aerial Parts of Aqueous Extract (APAE) of Corrigiola telephiifolia (C. telephiifolia) on both normal and streptozotocin (STZ)-induced diabetic rats treated at a dose of 5 mg/kg for fifteen days. Additionally, the histopathological changes in the liver, morphometric analysis, Oral Glucose Tolerance Test (OGTT) in normal rats and preliminary phytochemical screening for various components were realized. Results: Single oral administration of the APAE of C. telephiifolia (5mg/kg) showed no significant change in glycaemia of normal and STZ-induced diabetic rats. In contrast, repeated oral administration of C. telephiifolia reduced blood glucose levels from 4.11 ± 0.10 mmol/L to 3.16 ± 0.16 mmol/L (p<0.01) 15 days after administration in normal rats. Furthermore, blood glucose levels decreased from 17.84 ± 1.75mmol/L to 1.93 ± 0.33 mmol/L (p<0.0001) in STZ diabetic rats after fifteen days of treatment. According to the oral glucose tolerance test, C. telephiifolia (5 mg/kg) was shown to prevent significantly the increase in blood glucose levels in normal treated rats 30 min after glucose administration when compared to the control group. Also, the liver architecture of diabetic rats treated by C. telephiifolia was improved when compared with the liver architecture of untreated diabetic rats. Concerning the preliminary phytochemical screening of C. telephiifolia, several compounds have been found such as polyphenols, flavonoids, saponins, mucilage and terpenoids. Conclusion: The results show that the aqueous extract of C. telephiifolia possesses significant antihyperglycemic activity.

Sign in / Sign up

Export Citation Format

Share Document