scholarly journals Protective Effect of Free and Bound Polyphenol Extracts from Ginger (Zingiber officinaleRoscoe) on the Hepatic Antioxidant and Some Carbohydrate Metabolizing Enzymes of Streptozotocin-Induced Diabetic Rats

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Mutiu Idowu Kazeem ◽  
Musbau Adewunmi Akanji ◽  
Musa Toyin Yakubu ◽  
Anofi Omotayo Tom Ashafa

This study investigated the hepatoprotective effects of polyphenols fromZingiber officinaleon streptozotocin-induced diabetic rats by assessing liver antioxidant enzymes, carbohydrate-metabolizing enzymes and liver function indices. Initial oral glucose tolerance test was conducted using 125 mg/kg, 250 mg/kg, and 500 mg/kg body weight of both free and bound polyphenols fromZ. officinale. 28 day daily oral administration of 500 mg/kg body weight of free and bound polyphenols fromZ. officinaleto streptozotocin-induced (50 mg/kg) diabetic rats significantly reduced (P<0.05) the fasting blood glucose compared to control groups. There was significant increase (P<0.05) in the antioxidant enzymes activities in the animals treated with both polyphenols. Similarly, the polyphenols normalised the activities of some carbohydrate metabolic enzymes (hexokinase and phosphofructokinase) in the liver of the rats treated with it and significantly reduced (P<0.05) the activities of liver function enzymes. The results from the present study have shown that both free and bound polyphenols fromZ. officinaleespecially the free polyphenol could ameliorate liver disorders caused by diabetes mellitus in rats. This further validates the use of this species as medicinal herb and spice by the larger population of Nigerians.

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.


Author(s):  
Aditya Dilipkumar Patil ◽  
Charusheela Dilipkumar Patil ◽  
Dilipkumar Kondiba Patil

INTRODUCTION – Diabetes Mellitus is an emerging endocrine and metabolic disorder which has affected millions of people globally. Homeopathy a science of ultra-molecular doses with a holistic approach is used in treatment of Diabetes Mellitus. Homeopathic medicines are prepared from plant, mineral, sarcodes, nosodes and animal parts. Insulinum, Pancreatinum and Uranium nitricum is used in homeopathy for treatment of Diabetes Mellitus. However no any preclinical studies have been investigated for the anti-diabetic effect and its safety. METHODS – Homeopathic medicines Insulinum, Pancreatinum and Uranium nitricum in 6C (1012) dilution factor were used to examine antihyperglycemic effects in streptozotocin induced diabetic rats. After 28 days treatment bodyweight, Hematology, Biochemistry (serum glucose, urea, creatinine, SGPT, SGOT, ALP, Triglyceride and HDL-cholesterol), Oral Glucose Tolerance Test, HbA1C with histopathology of (Liver, Kidney, Pancreas) was measured. RESULTS – After Streptozotocin induction, the animals have shown significant increase in the fasting blood glucose level (p


2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Eko Farida ◽  
Lilis Nuraida ◽  
Puspo E. Giriwono ◽  
Betty S. L. Jenie

Some lactic acid bacteria (LAB) are observed to be potential probiotics with functional properties such as lowering fasting blood glucose (FBG), as a promising hyperglycemia management. This study investigated the ability and mechanism of Lactobacillus rhamnosus BSL and Lactobacillus rhamnosus R23 on lowering FBG in diabetic rats induced by streptozotocin (STZ). The rats were orally administered with L. rhamnosus BSL and L. rhamnosus R23 by giving 1 mL cell suspension (109 CFU/mL) daily for 30 days. The body weight (BW) was recorded once in three days, and FBG was recorded once in six days. An oral glucose tolerance test (OGTT) was measured 1 week after injection with STZ and before sacrifice. Fecal samples were collected on days 0, 15, and 30 for LAB population and identification, performed by PCR detecting 16S rRNA. Oral administration of L. rhamnosus BSL and L. rhamnosus R23 decreased FBG and improved glucose tolerance via downregulation of glucose-6-phosphatase (G6pc) expression by 0.57- and 0.60-fold change, respectively (P<0.05). The lipid profiles, BUN, creatinine, SGOT, and SGPT were significantly (P<0.05) different between normal and diabetic rats, but they were not significantly (P>0.05) different among diabetic rats. Both strains were effective in increasing fecal LAB population. Molecular identification of the isolated LAB from fecal sample indicated that they were able to survive and pass through the digestive tract. These results suggested that both strains have the ability to manage blood glucose level and become a promising agent to manage hyperglycemia and diabetes.


2018 ◽  
Vol 5 (11) ◽  
pp. 683-698
Author(s):  
Meenatchi Packirisamy ◽  
Purushothaman Ayyakkannu ◽  
Maneemegalai Sivaprakasam

Coccinia grandis (L.) Voigt (Cucurbitales: Cucurbitaceae) is a climbing perennial herb, growing throughout India and it is widely used in the traditional treatment of diabetes. The aim of present study was to evaluate the antidiabetic potential of the mature unripe of Coccinia grandis in streptozotocin (STZ)-induced diabetic rats with special reference to carbohydrate metabolizing enzymes. The optimum dose of Coccinia grandis extract (GCE) was determined by oral glucose tolerance test. The effects of CGE were compared with glibenclamide. Oral administration of Coccinia grandis extract at a concentration of 250 mg/kg body weight once daily to diabetic rats for the period of 30 days resulted in significant reduction in the levels of plasma glucose and glycosylated hemoglobin. Administration of CGE showed a significant increase in the levels of glycolytic enzymes and glycogen content and decrease in the levels of gluconeogenic enzymes in the liver of diabetic treated rats. The anti-hyperglycemic effect of the extract was comparable with glibenclamide, a known hypoglycemic drug. Present findings provide experimental evidence that the fruits of C. grandis have potential antidiabetic activity which might be used as a functional food and safe remedy for the treatment of diabetes and associated complications.


2020 ◽  
Vol 20 (5) ◽  
pp. 797-805 ◽  
Author(s):  
Mariana P.R. Machado ◽  
Aline Z. Schavinski ◽  
Amanda L. Deluque ◽  
Gustavo T. Volpato ◽  
Kleber E. Campos

Background: Limited studies have been carried out with prednisone (PRED) in treatment by glucose intolerant individuals, even in this model the animals presented low blood glucose levels at adulthood, by the high regenerative capacity of β-cell. Objective: The aim was to evaluate the effects of the treatment of PRED in mild diabetes on biochemical and immunological biomarkers. Methods: Rats were randomly divided into four groups: control (C), treated control C+PRED (treatment of 1.25 mg/Kg/day PRED); diabetic DM (mild diabetes) and treated diabetic DM+PRED (treatment with same dose as C+PRED group). Untreated groups received vehicle, adjusted volume to body weight. The treatment lasted 21 days and measured body weight, food and water intake, and glycemia weekly. In the 3rd week, the Oral Glucose Tolerance Test (OGTT) and the Insulin Tolerance Test (ITT) was performed. On the last day, the rats were killed and the blood was collected for biochemical analyzes, leukogram and immunoglobulin G levels. Results: There was a significant decrease in body weight in mild diabetes; however, the treatment in diabetic groups increased food intake, glycemia, and the number of total leukocytes, lymphocytes and neutrophils. On the other hand, it decreased the levels of triglycerides, high-density and very lowdensity lipoproteins. In addition, diabetic groups showed glucose intolerance and mild insulin resistance, confirming that this model induces glucose intolerant in adult life. Conclusion: The results showed that the use of prednisone is not recommended for glucose intolerant individuals and should be replaced in order to not to aggravate this condition.


Author(s):  
Mohamed El Kabbaoui ◽  
Alae Chda ◽  
Najlae Mejrhit ◽  
Abdellah Farah ◽  
Lotfi Aarab ◽  
...  

<p><strong>Objective</strong>:<strong> </strong>The aerial parts of <em>Thymus satureioides </em>have been traditionally used to treat diabetes mellitus and its complications in Morocco. The aim of the present study was to investigate the antidiabetic and antihyperlipidemic effects of the aqueous extract of <em>Thymus satureioides </em>aerial parts in streptozotocin (STZ) induced diabetic rats.</p><p><strong>Methods: </strong>Experimental diabetes was induced in overnight fasted rats by intraperitoneal injection of streptozotocin (45 mg/kg). Diabetic rats were orally administered with aqueous extract of <em>Thymus satureioides</em> (500 mg/kg b.w.) for 28 d. Glibenclamide (2 mg/kg), a standard antidiabetic drug, was used as a positive control drug. Body weight and fasting blood glucose (FGB) were measured every week. Oral glucose tolerance, change in lipid parameters, urea, creatinine, aspartate aminotransferase (ASAT) and alanine aminotransferase (ALAT) levels of diabetic rats were evaluated at the end of the treatment.</p><p><strong>Results: </strong>Administration of <em>Thymus satureioides </em>aqueous extract to diabetic rats for 28 d reduced their fasting blood glucose levels significantly compared to the diabetic control rats. The extract improved body weight and glucose tolerance in diabetic rats. The antihyperlipidemic assessment of the extract revealed a decrease in plasma total cholesterol, triglycerides, LDL levels and an increase in HDL level in the plasma of treated diabetic rats. Furthermore, the biochemical liver and kidney functional tests have shown that serum biomarkers of liver and renal dysfunction were significantly reduced in treated diabetic rats.</p><strong>Conclusion: </strong>The present findings suggest that <em>Thymus satureioides </em>extract has both antidiabetic and antihyperlipidemic effects in experimental diabetic rats which can be beneficial in the management of diabetes and its complications.<p> </p>


2021 ◽  
Vol 3 (2) ◽  
pp. 01-07
Author(s):  
Huriatul Masdar ◽  
Muhammad Radhiatul Hakiki ◽  
Muhammad Rafi Syahputra ◽  
Tommy Satriasumatri ◽  
Deskafiani Putri ◽  
...  

Introduction: Genistein, daidzein and glicytein are soybean’s isoflavones which have been known having anti diabetic effect. Fermentation process of soybean can lead to formation aglycan isoflavones which have higher bioavailability than unfermented-soybean. Aims: This research was aimed to evaluate the effect of soybean and tempeh (fermented-soybean) administration to oral glucose tolerance test (OGTT) in diabetic rats. Method: Twenty male Rattus norvegicus Wistar strains were used in this experiment, divided into 4 groups: standard, negative control, soybean and tempeh group. Type 2 diabetes in rats was induced by giving streptozotocin (50 mg/kgBW) and nicotinamide (110 mg/kgBW) intraperitoneally. Blood glucose were measured by using blood glucose test meter and classified into diabetes if its level above 200 mg/dL. Soybean (200 mg/kgBW/day) and tempeh (200 mg/kgBW/day) suspension were given by using gastric tube for 30 days. Results: The results showed the means of either fasting blood glucose (FBG) or 2 hours post prandial blood glucose (2hPP) of negative control were persistent above 200 mg/dL on day 15th and 30th  (p> 0,05). In soybean group there was a decrease the mean of FBG on day 15th  (p<0.05) but did not reach the normal level, and on day 30th the mean of FBG was <200 mg/dL (p<0.05) however 2hPP blood glucose was still >200 mg/dL (p<0.05). Furthermore, in tempeh group, the means of either FBG or 2hPP blood glucose reached the normal level in day 15th and 30th (p <0.05). Conclusion: the provision of tempeh was better in controlling blood sugar levels than soybean.


2016 ◽  
Vol 113 (15) ◽  
pp. 4140-4145 ◽  
Author(s):  
Peng-Yu Yang ◽  
Huafei Zou ◽  
Elizabeth Chao ◽  
Lance Sherwood ◽  
Vanessa Nunez ◽  
...  

Antidiabetic treatments aiming to reduce body weight are currently gaining increased interest. Exendin-4, a glucagon-like peptide-1 (GLP-1) receptor agonist administered twice daily via s.c. injection, improves glycemic control, often with associated weight reduction. To further improve the therapeutic efficacy of exendin-4, we have developed a novel peptide engineering strategy that incorporates a serum protein binding motif onto a covalent side-chain staple and applied to the peptide to enhance its helicity and, as a consequence, its potency and serum half-life. We demonstrated that one of the resulting peptides, E6, has significantly improved half-life and glucose tolerance in an oral glucose tolerance test in rodents. Chronic treatment of E6 significantly decreased body weight and fasting blood glucose, improved lipid metabolism, and also reduced hepatic steatosis in diet-induced obese mice. Moreover, the high potency of E6 allowed us to administer this peptide using a dissolvable microstructure-based transdermal delivery system. Pharmacokinetic and pharmacodynamic studies in guinea pigs showed that a single 5-min application of a microstructure system containing E6 significantly improved glucose tolerance for 96 h. This delivery strategy may offer an effective and patient-friendly alternative to currently marketed GLP-1 injectables and can likely be extended to other peptide hormones.


2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Sze Han Ng ◽  
Mohd Shazwan Mohd Zain ◽  
Fatariah Zakaria ◽  
Wan Rosli Wan Ishak ◽  
Wan Amir Nizam Wan Ahmad

Introduction.Pleurotus sajor-caju(PSC) is an edible oyster mushroom featuring high nutritional values and pharmacological properties.Objective. To investigate the hypoglycemic and antidiabetic effects of single and repeated oral administration of PSC aqueous extract in normal and diabetic rats.Materials and Methods. A single dose of 500, 750, or 1000 mg/kg of the PSC extract was given to experimental rats to determine the effects on blood glucose (BG) and oral glucose tolerance test (OGTT). The effective dose (750 mg/kg) of PSC extract was repeatedly administrated daily for 21 days in diabetic rats to examine its antidiabetic effects in terms of BG control, body weight, urine sugar, HbA1c, and several serum profiles.Results. The dose of 750 mg/kg showed the most significant BG reduction (23.5%) in normal rats 6 hours after administration in BG study (p<0.05). In OGTT study, the same dose produced a maximum BG fall of 41.3% in normal rats and 36.5% in diabetic rats 3 hours after glucose administration. In 21-day study, treated diabetic rats showed significant improvement in terms of fasting BG, body weight, and urine sugar as compared to control diabetic rats.Conclusion. The study evidenced scientifically the beneficial use of PSC as an alternative medicine in diabetes management.


2015 ◽  
Vol 3 (1) ◽  
pp. 01-11
Author(s):  
Meena Godhia ◽  
Nagma Naik

Results obtained from studies on the effect of vitamin D supplementation with or without calcium on glucose homeostasis and hematological parameters have been inconsistent. This experimentally-controlled designed study investigated the combined effects of Ca2+ and Vit.D-fortified diet on body weight, glycemic profile, biochemical, haemostatic and haematological parameters in 2 groups (n=8, each) of experimental male diabetic and healthy albino rats following treatment with Ca2+ and Vit.D-fortified diet for 6 weeks. 2 similar groups of rats (n=8, each) on normal diets served as normal and diabetic controls respectively to allow comparison between groups. Induction of diabetes (100mg/dL, intraperitoneally) was achieved with freshly prepared alloxan monohydrate solution after 15 hours overnight fast while oral glucose tolerance test, biochemical and hematological analysis were performed on blood samples. Fasting blood glucose (FBG) was taken at study baseline and 6 weeks after feeding. Mean weights were significantly (p < 0.05) lower in calcium/vitamin D-fortifed diet-fed diabetic and normal rats compared with their respective controls. Actual percentage numerical weight gain at 6 weeks of study includes: diabetic rats on treatment diet (15.50%); diabetic controlled rats (18.70%); normal rats on treatment diet (20.40%); normal controlled rats (25.10%). At 6 weeks of study, experimental diabetic rats showed significant (p < 0.05) reduction (22.83%) in mean FBG concentration compared with the diabetic control rats. Experimental rats fed on calcium and vitamin D-fortified diet displayed improved glycemic tolerance over their respective controls. Hematological analysis revealed insignificant (p > 0.05) difference in hematological and hemostatic indices between the experimental and controlled rats. In diabetic rats, Ca2+ and Vit.D-fortified diet reduced body weight with beneficial hypoglycemic and remarkable glycemic tolerant effects on glycemic profile without significant impact on hemostatic and hematological indices.


Sign in / Sign up

Export Citation Format

Share Document