scholarly journals A COMPARATIVE STUDY OF THE ANTI-OXIDATIVE AND ANTI-DIABETIC POTENTIAL OF IN VITRO AND IN VIVO ROOT AND LEAF EXTRACTS OF WITHANIA SOMNIFERA ON STREPTOZOTOCIN INDUCED DIABETIC RATS

Author(s):  
Somanatha Jena ◽  
Ram C. Jena ◽  
Rasmita Bhol ◽  
Khusbu Agarwal ◽  
Ansuman Sarangi ◽  
...  

<p><strong>Objective: </strong>The present investigation explores the possibilities of using the <em>in vitro</em> and <em>in vivo </em>root and leaf extracts of <em>Withania somnifera </em>for anti-diabetic and anti-hyperlipidaemic effects on streptozotocin-induced diabetic rats.</p><p><strong>Methods: </strong><em>In vitro </em>shoot cultures of <em>Withania somnifera</em> were raised by the axillary proliferation in nodal explants from a garden grown plant using Murashige and Skoog medium then <em>in</em><em> vitro</em> raised roots and shoots were used for the anti-hyperglycemic and anti-hyperlipidaemic experiment. After 72 h of STZ administration, the fasting blood glucose levels were measured and the rats showing FBG level&gt;220 mg/dl were considered to be diabetic and were used for the hyperglycemic study. <em>In vitro</em> and <em>in vivo</em> methanolic root and leaf extracts were orally administered daily to diabetic rats for eight weeks. After the treatment period, blood glucose and serum enzymes like aspartate transaminase (AST), alanine transaminase (ALT), alkaline phosphatase (ALP), total cholesterol, triglycerides, HDL-c high density lipoprotein-bound cholesterol, LDL-c low density lipoprotein-bound cholesterol, LDH, serum protein level, total phenolics and anti-oxidative analysis (DPPH and FRAP) were determined.</p><p><strong>Results: </strong>The levels of blood glucose, AST, ALT, ALP, LDH, HDL-c significantly increased by the use of <em>in vitro</em> methanolic root extracts compared to normal control rats. However, remarkable loss of total protein, albumin, albumin: globulin (A: G) ratio was reported in streptozotocin-induced diabetic rats by using <em>in vitro</em> root extracts. Methanolic <em>in vitro</em> root extract at the dose levels of 300 mg/kg body weight produced a significant decrease in fasting blood glucose (FBG) level by 102.65 with respect to initial fasting blood glucose level after 30 d of the treatment. <em>In vitro</em> root extract demonstrated highest DPPH and FRAP free radical scavenging activity, i.e. 86.55±1.77 and 48.87±2.55 than other extracts.</p><p><strong>Conclusion: </strong>It may be concluded that methanolic <em>in vitro</em> root extract <em>W. somnifera </em>at the dose (300 mg/kg) has more potent anti-hyperglycaemic activity than the other <em>in vitro</em> and <em>in vivo </em>extracts of leaf and root on streptozotocin induced diabetic rats and was also found to be similar in effect to that of the standard drug ‘Glibenclamide’.</p>

2014 ◽  
Vol 92 (5) ◽  
pp. 405-417 ◽  
Author(s):  
Xian-Wei Li ◽  
Yan Liu ◽  
Wei Hao ◽  
Jie-Ren Yang

Sequoyitol decreases blood glucose, improves glucose intolerance, and enhances insulin signaling in ob/ob mice. The aim of this study was to investigate the effects of sequoyitol on diabetic nephropathy in rats with type 2 diabetes mellitus and the mechanism of action. Diabetic rats, induced with a high-fat diet and a low dose of streptozotocin, and were administered sequoyitol (12.5, 25.0, and 50.0 mg·(kg body mass)−1·d−1) for 6 weeks. The levels of fasting blood glucose (FBG), serum insulin, blood urea nitrogen (BUN), and serum creatinine (SCr) were measured. The expression levels of p22phox, p47phox, NF-κB, and TGF-β1 were measured using immunohistochemisty, real-time PCR, and (or) Western blot. The total antioxidative capacity (T-AOC), as well as the levels of malondialdehyde (MDA) and reactive oxygen species (ROS) were also determined. The results showed that sequoyitol significantly decreased FBG, BUN, and SCr levels, and increased the insulin levels in diabetic rats. The level of T-AOC was significantly increased, while ROS and MDA levels and the expression of p22phox, p47phox, NF-κB, and TGF-β1 were decreased with sequoyitol treatment both in vivo and in vitro. These results suggested that sequoyitol ameliorates the progression of diabetic nephropathy in rats, as induced by a high-fat diet and a low dose of streptozotocin, through its glucose-lowering effects, antioxidant activity, and regulation of TGF-β1 expression.


2021 ◽  
pp. 338-348
Author(s):  
Mizaton Hazizul Hasan ◽  
Hasbullani Zakaria ◽  
Ibtisam Abdul Wahab ◽  
Thellie Ponto ◽  
Aishah Adam

Type 2 diabetes mellitus (T2DM) is one of the main non-communicable chronic diseases that has many complications that compromise the quality of life. Hence, the need to find alternatives to replace the current therapy or as an adjuvant. Tubers of Myrmecodia platytytrea (Rubiaceae) has been used traditionally as an alternative therapy for the management of cancer and other inflammatory-related disorders. The aim of this study was to investigate the potency of M. platytytrea methanolic tuber extract (MPMTE) as an antihyperglycemic agent, in vivo. :The streptozotocin (STZ)-induced diabetic rats were treated orally with MPMTE (100, 200 and 400 mg/kg) and metformin (positive control, 100 mg/kg) daily for 14 days. Blood glucose level and other biochemistry analysis were conducted including histological examination on liver, kidney and pancreas.  The STZ-induced diabetic rats treated with MPMTE (200 and 400 mg/kg) had significant decreased (p<0.05) in fasting blood glucose, total cholesterol, triglycerides and low-density lipoprotein (LDL) with no significant changes in high-density lipoprotein (HDL) compared to STZ-induced untreated diabetic rats. Liver, kidney and pancreas were devoid of any damage caused by STZ.  MPMTE had strong antihyperglycaemic activity and was protective against any STZ-induced organ damage. Thus, MPMTE can be further developed into an adjuvant therapy for diabetic patients.


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.


2021 ◽  
Vol 12 (6) ◽  
pp. 7321-7341

The in vitro antidiabetic and antioxidant potential of Punica granatum, Eriobotrya japonica, and Musa acuminata leaves were evaluated using normal and streptozocin (STZ) induced diabetic rats. Experimental diabetes was induced into Wister rats using streptozocin (40 mg/kg), injected intraperitoneal (IP). Orally crude methanolic leaves extracts were administered in streptozocin induced diabetic rats (n=6) along with the fractions (chloroform, ethyl acetate, and aqueous) of P. granatum, E. japonica, and M. acuminata (50 mg/kg) along with standard drug glimepiride (2 mg/kg) for 28 days. Rats' blood samples were tested for blood glucose using glucose oxidase reactive strips and glucometer. Glucose was administered to nondiabetic control rats. The rats were also treated with glimepiride and leaves extracts of P. granatum, E. japonica, and M. acuminata to check the oral glucose tolerance (OGTT). Blood glucose levels were checked at 0, 30, 60, 120 minutes intervals after drug administration. The effect of various fractions of leaf extracts on the bodyweight of rats was also studied. Data obtained was evaluated by two-way Analysis of Variance (ANOVA) and expressed as standard deviation. Leaves extracts exhibit significant antidiabetic and antioxidant properties. These medicinal plants with antioxidant and antidiabetic properties could be an economical source of local medicine for diabetes.


2011 ◽  
Vol 11 ◽  
pp. 788-800 ◽  
Author(s):  
Haidy S. Omar ◽  
Hesham A. El-Beshbishy ◽  
Ziad Moussa ◽  
Kamilia F. Taha ◽  
Abdel Nasser B. Singab

The present study examines the antioxidative, hypoglycemic, and hypolipidemic activities ofArtocarpus heterophyllus(jack fruit) leaf extracts (JFEs). The 70% ethanol (JFEE), n-butanol (JFBE), water (JFWE), chloroform (JFCE), and ethyl acetate (JFEAE) extracts were obtained. Both JFEE and JFBE markedly scavenge diphenylpicrylhydrazyl radical and chelate Fe+2in vitro. A compound was isolated from JFBE and identified using 1D and 2D1H- and13C-NMR. The administration of JFEE or JFBE to streptozotocin (STZ)-diabetic rats significantly reduced fasting blood glucose (FBG) from 200 to 56 and 79 mg%, respectively; elevated insulin from 10.8 to 19.5 and 15.1 μU/ml, respectively; decreased lipid peroxides from 7.3 to 5.4 and 5.91 nmol/ml, respectively; decreased %glycosylated hemoglobin A1C (%HbA1C) from 6.8 to 4.5 and 5.0%, respectively; and increased total protein content from 2.5 to 6.3 and 5.7 mg%, respectively. Triglycerides (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), VLDL-C, and LDL/HDL ratio significantly declined by -37, -19, -23, -37, and -39%, respectively, in the case of JFEE; and by -31, -14, -17, -31, and -25%, respectively, in the case of JFBE; as compared to diabetic rats. HDL-C increased by +37% (JFEE) and by +11% (JFBE). Both JFEE and JFBE have shown appreciable results in decreasing FBG, lipid peroxides, %HbA1C, TC, LDL-C, and TG levels, and increasing insulin, HDL-C, and protein content. The spectrometric analysis confirmed that the flavonoid isolated from JFBE was isoquercitrin. We can conclude from this study that JFEE and JFBE exert hypoglycemic and hypolipidemic effects in STZ-diabetic rats through an antioxidative pathway that might be referred to their flavonoid contents.


Author(s):  
Muyiwa Samuel Fageyinbo ◽  
Abidemi James Akindele ◽  
Sunday Oluwaseun Adenekan ◽  
Esther Oluwatoyin Agbaje

Abstract Background Antidiabetic activity of aqueous root extract of Strophanthus hispidus (SHP) was evaluated based on its folklore used in traditional medicine for the treatment of diabetes. Objectives: This study aimed to investigate the in-vitro and in-vivo antidiabetic potential of the aqueous root extract of SHP. Methods SHP (50, 100 and 200 mg/kg p.o.), glibenclamide (5 mg/kg p.o.), normal saline (10 mL/kg; diabetic control) and distilled water (10 mL/kg; normal control) were administered once daily for 28 days, with the measurement of fasting blood glucose level at 7 days interval. Blood samples were collected on day 28 for serum biochemical (albumin, total protein [TP], creatinine, alanine transaminase [ALT], aspartate transaminase [AST], alkaline phosphatase [ALP], triglycerides [TG], total cholesterol [TC], high-density lipoprotein [HDL], low-density lipoprotein [LDL], bilirubin and urea) and hematological assays. The in-vitro antidiabetic activity was investigated using α-amylase and α-glucosidase enzymes inhibitory assays. Results SHP produced a day-dependent reduction in glucose level. Peak reduction (82.94 %; p < 0.05) was produced at the dose of 100 mg/kg. SHP significantly (p < 0.05) increased the level of HDL and TP but significantly (p < 0.05) reduced the levels of TG, LDL, TC, AST, ALT, ALP, bilirubin, creatinine and urea compared with diabetic control rats. Furthermore, SHP significantly (p < 0.05) increased the level of catalase, superoxide dismutase and reduced glutathione compared to diabetic control rats. SHP significantly (p < 0.05) inhibited α-amylase and α-glucosidase enzymes compared with acarbose. Conclusion The findings in this study showed that SHP possesses beneficial antidiabetic activity.


Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4634
Author(s):  
Md. Shaekh Forid ◽  
Md. Atiar Rahman ◽  
Mohd Fadhlizil Fasihi Mohd Aluwi ◽  
Md. Nazim Uddin ◽  
Tapashi Ghosh Roy ◽  
...  

This research investigated a UPLC-QTOF/ESI-MS-based phytochemical profiling of Combretum indicum leaf extract (CILEx), and explored its in vitro antioxidant and in vivo antidiabetic effects in a Long–Evans rat model. After a one-week intervention, the animals’ blood glucose, lipid profile, and pancreatic architectures were evaluated. UPLC-QTOF/ESI-MS fragmentation of CILEx and its eight docking-guided compounds were further dissected to evaluate their roles using bioinformatics-based network pharmacological tools. Results showed a very promising antioxidative effect of CILEx. Both doses of CILEx were found to significantly (p < 0.05) reduce blood glucose, low-density lipoprotein (LDL), and total cholesterol (TC), and increase high-density lipoprotein (HDL). Pancreatic tissue architectures were much improved compared to the diabetic control group. A computational approach revealed that schizonepetoside E, melianol, leucodelphinidin, and arbutin were highly suitable for further therapeutic assessment. Arbutin, in a Gene Ontology and PPI network study, evolved as the most prospective constituent for 203 target proteins of 48 KEGG pathways regulating immune modulation and insulin secretion to control diabetes. The fragmentation mechanisms of the compounds are consistent with the obtained effects for CILEx. Results show that the natural compounds from CILEx could exert potential antidiabetic effects through in vivo and computational study.


INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (04) ◽  
pp. 50-56
Author(s):  
K Ravishankar ◽  
Y.V.V.M. Lakshmi Prasanna ◽  
G.V.N. Kiranmayi ◽  

In vitro antioxidant and in vivo hepatoprotective activities of Cleome gynandra ethanolic leaf and root extracts were assessed. In vitro antioxidant activity was carried by DPPH, Nitric oxide, hydroxyl radical and phosphomolybdenum assays. Hepatoprotective activity was evaluated by Carbon tetrachloride (CCl4) induced hepatotoxicity in albino rats.The animals were divided into seven groups (Four test groups - Ethanolic Leaf and Root Extracts of Cleome gynandra of 100 mg/kg and 200 mg/kg, standard silymarin (100 mg/kg), toxic control-carbon tetrachloride and vehicle). On the eight day, the blood was collected and parameters like serum glutamic oxaloacetic transaminase (SGOT), Serum glutamic pyruvic transaminase (SGPT), Alkaline phosphatase (ALP) and Total bilirubin (TB) were estimated. Significant antioxidant status with good IC50 values similar to standard ascorbic acid was obtained. A significant decrease in liver enzymes was observed in test groups comparable to silymarin. From the results obtained, ethanolic leaf extract has contributed better hepatoprotection compared with root extract in experimental rats.


2017 ◽  
Vol 54 (3) ◽  
pp. 336
Author(s):  
Kavitha K. ◽  
Ponne S.

The present study was designed to assess the in vitro and in vivo anti-diabetic efficacy of <em>O. sanctum</em> seed and its phytochemical screening. In vitro inhibitory effect on carbohydrate digestive enzymes like α-amylase and α-glucosidase and in vivo parameters such as fasting blood glucose and body weight changes were studied, a potent inhibitory effect was observed on activities of digestive enzymes and a marked decrease in the glucose level in the <em>O. sanctum</em> seed extract treated streptozotocin induced diabetic rats was noted. Further a marked reduction in body weight was also observed.


1970 ◽  
Vol 4 (1) ◽  
pp. 25-30
Author(s):  
Swaroopa Rani Vanapatla ◽  
G Krishna Mohan ◽  
B Ravi Kumar

The present study was aimed to evaluate the root extract fractions of Kyllinga triceps (KT) for their antidiabetic potential on streptozotocin induced diabetes in neonatal rats. Diabetes was induced by a single intraperitoneal injection of Streptozotocin (90mg/kg) to 48±2h old neonatal rats. Effect of root extract fractions (toluene, ethyl acetate, 1- butanol at 50 &100 mg/kg.) were tested for their antihyperglycemic activity by measuring their fasting blood glucose level in diabetic rats at 0,2,4,6,8,12 & 24 h after the treatment. In sub acute study ethyl acetate fraction of KT (EAKT) was administered daily to diabetic rats orally at a dose of 100mg/kg for 28 days. Body weight of the animals and blood glucose level were observed at weekly interval during the study. Cholesterol, triglycerides, insulin, SGPT, ALP, creatinine and total proteins level in serum were also estimated at the initial and after 28 days of the treatment. As the preliminary investigation conducted in our lab on methanolic extract of the roots of KT had showed significant oral glucose tolerance with 200 mg/kg in normal rats. Oral administration of fractions of the plant significantly reduced the fasting blood glucose level in diabetic rats. Among the fractions, EAKT was found to be more effective. Further, in sub-acute study, EAKT, showed a significant anti diabetic activity by reversal of the altered afore said serum biochemical parameters. The results of the study are substantiating the traditional claim of the roots of Kyllinga triceps in the treatment of diabetes with a scope for development of antidiabetic herbal drug from EAKT.   Key words: Antidiabetic activity; Kyllinga triceps; Ethyl acetate fraction; Streptozotocin. DOI: http://dx.doi.org/10.3329/sjps.v4i1.8863 SJPS 2011; 4(1): 25-30


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