scholarly journals Stellaria media attenuates the hyperglycemia and hyperlipidemia in alloxan-induced diabetic rat

2019 ◽  
Vol 14 (2) ◽  
pp. 80-86 ◽  
Author(s):  
Rahmat Khan ◽  
Wasim Ahmad ◽  
Mushtaq Ahmed
Keyword(s):  
Research Work ◽  
Diabetic Control ◽  
Experimental Models ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
Serum Enzyme ◽  
Stellaria Media ◽  
Diabetic Treatment

Abstract The objective of this research work was to assess the hyperglycemic and hyperlipidemiceffects of Stellaria media in alloxan induced diabetic rats using different experimental models. Standard documented protocols were used to concede the in vitro and in vivo activities. Biochemical markers studies were also done. The results of the study showed strong pancreatic α-amylase and β-glucosidase inhibition in-vitroat varying concentrations of the extract which further validated the in-vivo anti-diabetic action of the plant because of the inhibition of the above enzymes.The administration of various concentrations of the extract showedmomentous decrease in fasting blood level when compared to diabetic control. Similarly, remarkably improved hemoglobin (+20.10%), and decreased HbA1c (−48.44%) was observed when compared to diabetic control rats. The extract also caused reduced serum enzyme (ALT, ALP, bilirubin) levels and produced a succeeding recovery toward their normal values.It can be concluded from these investigations that the in-vitro and in-vivo hypoglycemic and hypolipidemic activity offers the methodicaljustification for the use of S. media in herb based anti-diabetic treatment.

Regulation of hepatic triiodothyronine production in the streptozotocin-induced diabetic rat

1984 ◽  
Vol 247 (4) ◽  
pp. E526-E533
Author(s):  
A. S. Jennings
Keyword(s):  
Diabetic Rats ◽  
Diabetic Rat ◽  
Isolated Perfused Rat Liver ◽  
Perfused Rat Liver ◽  
Insulin Administration ◽  
Progressive Decline ◽  
Serum T4 ◽  
Fasted Rats

The effect of diabetes on 3,5,3'-triiodothyronine (T3) production was determined in the isolated perfused rat liver. Induction of diabetes with streptozotocin resulted in decreased serum thyroxine (T4) and T3 levels and a progressive decline in hepatic T3 production over 5 days. The decline in T3 production resulted from decreased conversion of T4 to T3, whereas T4 uptake was unchanged. Insulin administration restored serum T4 and T3, hepatic conversion of T4 to T3, and T3 production to normal levels. When serum T4 levels in diabetic rats were maintained by T4 administration, the conversion of T4 to T3 and T3 production returned to control levels. However, restoration of serum T4 levels in fasted rats failed to correct the decrease in hepatic T4 uptake or T3 production. Glucagon, at supraphysiological concentrations in vitro and in vivo, slightly decreased T4 uptake and T3 production without altering the conversion of T4 to T3. These data suggest that the fall in serum T4 levels observed in diabetic rats is important in mediating the decreased hepatic conversion of T4 to T3 and T3 production.

In vivo and in vitro resistance to maximal insulin-stimulated glucose disposal in insulin deficiency

1985 ◽  
Vol 249 (3) ◽  
pp. E312-E316 ◽  
Author(s):  
E. Dall'Aglio ◽  
H. Chang ◽  
C. B. Hollenbeck ◽  
C. E. Mondon ◽  
C. Sims ◽  
...  
Keyword(s):  
Glucose Uptake ◽  
Glucose Transport ◽  
Diabetic Rats ◽  
Glucose Disposal ◽  
Diabetic Rat ◽  
Insulin Deficiency ◽  
Fat Cell ◽  
Total Body

The effect of streptozotocin-induced diabetes mellitus on maximal insulin-stimulated glucose uptake in the rat was studied in isolated adipocyte, perfused hindlimb, and the intact organism. Basal glucose transport per fat cell was reduced by approximately two-thirds (P less than 0.001), being associated with a similar decrease in glucose oxidation per fat cell (P less than 0.001). There was also a significant decrease (P less than 0.001) in basal glucose uptake by perfused hindlimb of diabetic rats of approximately 40%. Furthermore, maximal insulin-stimulated glucose transport and oxidation were approximately 50% lower (P less than 0.001) in fat cells of diabetic as compared with control rats. In contrast, maximal insulin-stimulated glucose disposal by perfused hindlimbs from diabetic and control rats was similar, and this was also true of the ability of insulin to maximally stimulate glucose uptake in the intact normal and diabetic rat. These findings indicate that variation exists in the manner in which insulin-sensitive tissues respond to experimentally induced insulin deficiency and support the view that total body glucose disposal is primarily related to insulin action on muscle.

scholarly journals In Vivo and In Vitro Antidiabetic Activity of Terminalia paniculata Bark: An Evaluation of Possible Phytoconstituents and Mechanisms for Blood Glucose Control in Diabetes

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Subramaniam Ramachandran ◽  
Aiyalu Rajasekaran ◽  
Natarajan Adhirajan
Keyword(s):  
Blood Glucose ◽  
Gallic Acid ◽  
Blood Glucose Control ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Antidiabetic Activity ◽  
Terminalia Paniculata

The present study was aimed to investigate in vivo, in vitro antidiabetic activity of aqueous extract of Terminalia paniculata bark (AETPB) and characterize its possible phytoconstituents responsible for the actions. Type 2 diabetes was induced in rats by streptozotocin-nicotinamide (65 mg/kg–110 mg/kg; i.p.) administration. Oral treatment of AETPB using rat oral needle at 100 and 200 mg/kg doses significantly () decreased blood glucose and glycosylated haemoglobin levels in diabetic rats than diabetic control rats. AETPB-treated diabetic rats body weight, total protein, insulin, and haemoglobin levels were increased significantly () than diabetic control rats. A significant () reduction of total cholesterol and triglycerides and increase in high-density lipoprotein levels were observed in type 2 diabetic rats after AETPB administration. Presence of biomarkers gallic acid, ellagic acid, catechin, and epicatechin in AETPB was confirmed in HPLC analysis. AETPB and gallic acid showed significant () enhancement of glucose uptake action in presence of insulin in muscle cells than vehicle control. Also AETPB inhibited pancreatic α-amylase and α-glucosidase enzymes. In conclusion, the above actions might be responsible for the antidiabetic activity of AETPB due to presence of gallic acid and other biomarkers.

scholarly journals Adiponectin Modified BMSCs Alleviate Heart Fibrosis via Inhibition TGF-beta1/Smad in Diabetic Rats

2021 ◽  
Vol 9 ◽  
Author(s):  
Ke Meng ◽  
Huabo Cai ◽  
Simin Cai ◽  
Yucai Hong ◽  
Xiaoming Zhang
Keyword(s):  
Myocardial Fibrosis ◽  
High Glucose ◽  
Cardiac Fibrosis ◽  
Therapeutic Potential ◽  
Heart Diseases ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
H9c2 Cells

Background: Accumulating evidence suggested that bone marrow mesenchymal stem cells (BMSCs) have therapeutic potential for diabetes and heart diseases. However, the effects of BMSC on reducing myocardial fibrosis need to be optimized. This study aimed to investigate the mechanism of adiponectin (APN) modified BMSCs on myocardial fibrosis in diabetic model in vivo and in vitro.Methods: The high-fat diet combined with streptozotocin (STZ) injection were used to induced diabetic rat model. H9c2 cells were cultured under a high glucose medium as in vitro model. The BMSCs were modified by APN plasmid or APN small interfering RNA (siRNA), then transplanted to the diabetic rats by a single tail-vein injection, or co-cultured with H9c2 cells.Results: We demonstrated that diabetic rats showed typical diabetic symptoms, such as decreased cardiac function, accumulation of pathological lesions and collagen expression. However, these impairments were significantly prevented by the APN modified BMSCs treatment while no effects on APN siRNA modified BMSCs treated diabetic rats. Moreover, we confirmed that APN modified BMSCs could attenuate the expression of TGF-beta1/smad to suppress the myocardial fibrosis in the diabetic rats and high glucose induced H9c2 cells.Conclusion: The present results for the first time showed that APN modified BMSCs exerted protection on cardiac fibrosis via inhibiting TGF-beta1/smad signal pathway in diabetic rats. Our findings suggested that APN modified BMSCs might be a novel and optimal therapy for the diabetic cardiomyopathy in future.

Antihyperglycemic activity of Typha elephantina leaves using in vivo and in vitro Techniques

2021 ◽  
pp. 3150-3156
Author(s):  
Supriya Agnihotri ◽  
Gurvirender Singh ◽  
Santosh Kumar Verma
Keyword(s):  
Blood Glucose ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
In Vivo Studies ◽  
Control Group ◽  
In Vitro Techniques ◽  
Percent Inhibition ◽  
Linear Rise

Looking at the increasing prevalence and inadequate treatments for diabetes mellitus, this study was carried to trace out hypoglycemic potentials of Typha elephantina leaves using in vitro and in vivo studies. α -amylase and α-glucosidase in vitro enzyme inhibition assay were incorporated to determine percent inhibition of Typha elephantina extracts. Typha elephantina methanol extract (TEME) at 125µg/ml in both α-amylase and α-glucosidase exhibited 57.48±1.42 and 53.64±0.92 percent inhibition in contrast to 66.7±0.94 and 70.31±1.25 of standard Acarbose, respectively. However, results obtained in Typha elephantina petroleum ether and chloroform extracts were insignificant. Further TEME antidiabetic properties were investigated by in vivo study, using Streptozotocin induced diabetic rats. Selected 250mg/kg and 500mg/kg doses of TEME were administered orally, which significantly (𝑃 < 0.001) reduces blood glucose of treated animals in contrast to diabetic control. 500mg/kg dose of TEME reduces blood glucose more efficiently. A significant linear rise of body weight and HDL were observed, while there was also remarkable reduction in cholesterol, TG, LDL, VLDL. Reduction in Liver function SGOT, SGPT along with creatinine and urea levels were observed in contrast to diabetic control group. In addition, antioxidant study of Typha elephantina extracts reflected significant results in comparison to that of ascorbic acid in DPPH and H2O2 assay. The whole study signified that Typha elephantina has hypoglycemic potentials.

scholarly journals Antihyperglycemic and anti-oxidant activity of various fraction of Parmotrema hababianum in streptozotocin-induced diabetic rat

2016 ◽  
Vol 11 (4) ◽  
pp. 935 ◽  
Author(s):  
Ayyappadasan Ganesan ◽  
Amutha Mahesh ◽  
Jeya Prakash Sundararaj ◽  
Kalaiselvi Mani ◽  
Ponmurugan Ponnusamy
Keyword(s):  
Blood Glucose ◽  
Video Clip ◽  
Ethanol Extract ◽  
Dosage Level ◽  
Insulin Level ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
Anti Oxidant

<p class="Abstract">The core objective of this study was to investigate the in vitro anti-oxidant and antihyperglycemic effect of the ethanol extract of <em>Parmotrema </em>hababianum in streptozocin-induced diabetic rats for 42 days. The extract showed nearly all anti-oxidant activities with maximum presence. The treatment with extract in diabetic rats at the dosage level of 100 and 200 mg/kg, which is compared with diabetic control and glibenclamide at a dosage level of 4 mg/kg and the biochemical parameters such as blood glucose, total cholesterol, triglycerides, HDL, LDL, insulin, total protein, urea and creatinine were assessed. The extract showed positive correlation (p&lt;0.001) in reducing blood glucose level as compared to the control. Moreover, there was a significant (p&lt;0.01) decrease in TC, TG, LDL, SGPT, SGOT, urea and creatinine level and significant (p&lt;0.01) increase in HDL and insulin level. Thus, the results of this study show considerable efficacy in curing diabetes with potent anti-oxidant and anti-hyperglycemic activity.</p><p class="Abstract"><strong>Video Clip of</strong>:</p><p class="Abstract"><a href="https://youtube.com/v/Lw2vvLpKNTE">Methodology</a>: 6 min 12 sec</p>

Insulin binding and glucose transport activity in cardiomyocytes of a diabetic rat

1986 ◽  
Vol 250 (4) ◽  
pp. E402-E406 ◽  
Author(s):  
E. C. Almira ◽  
A. R. Garcia ◽  
B. R. Boshell
Keyword(s):  
Glucose Transport ◽  
Insulin Binding ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
Heart Cells ◽  
Apparent Difference ◽  
Insulin Effect ◽  
Streptozotocin Induced Diabetes

We studied insulin binding and glucose transport in isolated adult cardiomyocytes from rats with 2-wk streptozotocin-induced diabetes. At 37 degrees C, cells from diabetic rats bound less 125I-insulin and exhibited lower rates of 3-O-methylglucose transport than cells from control rats. In contrast, the amount of 125I-insulin bound to myocytes at 4 degrees C was the same in both groups. Preincubation of cells from both groups with 10-10,000 ng/ml insulin significantly increased their basal rates of glucose transport by approximately 40%. However, the augmented rates in diabetics were still approximately 36% lower than the corresponding insulin-stimulated rates in the controls. When the glucose transport data were expressed as percent maximal insulin effect and plotted as a function of the amount of insulin bound, the curves obtained from both diabetic and nondiabetic controls were superimposable. These data demonstrate that 1) heart cells from diabetic rats bind less insulin than from control rats under conditions in which they exhibit impaired glucose transport rates, 2) there is no apparent difference in total receptor number between the two groups, but internalization of intact insulin appears to be diminished in diabetes, 3) coupling exists between insulin binding and glucose transport in both groups, and 4) these impaired processes are completely reversed by insulin treatment in vivo but not in vitro.

scholarly journals In vivo correlation of olive leaves extract on some oxidative stress markers in streptozotocin-induced diabetes mellitus in rats

2018 ◽  
Vol 69 (1) ◽  
pp. 243 ◽  
Author(s):  
A. M.R. Afify ◽  
H. S. El-Beltagi ◽  
S. A. Fayed ◽  
A. E. El-Ansary
Keyword(s):  
Oxidative Stress ◽  
Diabetes Mellitus ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Adult Rats ◽  
Male Adult ◽  
Stress Markers ◽  
Streptozotocin Induced Diabetes

Diabetes mellitus type two (T2DM) is one of the most extensive diseases in the world. Herbal therapy remains a possible adjunct therapy to sustain better glycemic control and reduce complications arising from diabetes. In order to evaluate the curative impacts of olive leaf extract (OLE) on streptozotocin (STZ)-induced diabetic rats, twenty-four Wistar male adult rats were divided into four equal groups; control, diabetic control (45 mg/kg STZ), normal rats treated with OLE (17.8 mg/kg b.wt.), and diabetic rats treated with OLE (45 mg/kg STZ + 17.8 mg/kg b.wt.). The OLE extract was investigated for in vitro antioxidant activity using the DPPH• assay. The phenolic, tannin, and flavonoid contents were determined. The activity of GPX, SOD, and GSH in RBC lysate, CAT in plasma and MDA in serum were measured. The OLE prevented the decrease in GSH and kept MDA around the normal range in the treated diabetic rats. The current study suggests that OLE might be used safely to ameliorate T2DM and its accompanying oxidative stress.

scholarly journals Isolation and Characterization of metabolites from Clathria procera Ridley extract and Evaluation of its antidiabetic ef-fects in Streptozotocin-induced diabetic rats

2019 ◽  
Vol 3 (1) ◽  
pp. 35-56
Author(s):  
Vinay Bharadwaj Tatipamula ◽  
Haritha Polimati ◽  
GSN Koteswara Rao ◽  
Alekhya Ketha ◽  
Rajendra Prasad Yejella
Keyword(s):  
Islet Cells ◽  
Histopathological Examination ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Control Group ◽  
Clinical Effects ◽  
In Vivo Models ◽  
Isolation And Characterization

Diabetes mellitus is a lethal metabolic disorder in humankind, which induce chronic complications. The present study investigated the effects of ethyl acetate extract from C. procera (EAE) and its isolates on antioxidant and in vitro antidiabetic activities, along with effects of EAE on plasma blood glucose concentrations in STZ-diabetic rats. For the first time, two known metabolites- N-((2S,3R,E)-1,3-dihydroxyoctadec-4-en-2-yl)stearamide (1) and N-((2S,3R,4E,8E)-1,3-dihydroxyoctadeca-4,8-dien-2-yl)palmitamide (2) are reported from EAE. 1, 2 and EAE depicted significant DPPH, superoxide free radicals, α-glucosidase and α-amylase inhibitory profile, indeed, 1 and 2 showed mild inhibitory profile against aldose reductase. In addition, the EAE (200 mg/kg b.w) revealed significant reduction in plasma glucose, body weight, total cholesterol, total glycerides and LDL levels in STZ-induced diabetic rats. The HDL levels were markedly augmented in EAE treated diabetic rats, when compared with control group. EAE abolished the increased lipid peroxidation in pancreas, liver and kidneys. The histopathological examination of pancreas of EAE protected the Langerhans islets with the number of islet cells were found statistically significant, when compared to diabetic control pancreas. Our data suggest that the C. procera has a potentiality to act against diabetes (both, in vitro and in vivo models) by inhibiting particularly digestive enzymes namely α-glucosidase and α-amylase, however further studies are required for proper establishment of mechanism of action and validating clinical effects.

scholarly journals Transplantation of photobiomodulation-preconditioned diabetic stem cells accelerates ischemic wound healing in diabetic rats

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Houssein Ahmadi ◽  
Abdollah Amini ◽  
Fatemeh Fadaei Fathabady ◽  
Atarodsadat Mostafavinia ◽  
Fatemeh Zare ◽  
...  
Keyword(s):  
Stem Cells ◽  
Cell Function ◽  
Foot Ulcer ◽  
Diabetic Foot Ulcer ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
Closure Rate ◽  
Group 1

Abstract Background Diabetic foot ulcer is the most costly and complex challenge for patients with diabetes. We hereby assessed the effectiveness of different preconditioned adipose-derived mesenchymal stem cells (AD-MSCs) and photobiomodulation protocols on treating an infected ischemic wound in type 1 diabetic rats. Methods There were five groups of rats: (1) control, (2) control AD-MSCs [diabetic AD-MSCs were transplanted (grafted) into the wound bed], (3) AD-MSC + photobiomodulation in vivo (diabetic AD-MSCs were grafted into the wound, followed by in vivo PBM treatment), (4) AD-MSCs + photobiomodulation in vitro, and (5) AD-MSCs + photobiomodulation in vitro + in vivo. Results Diabetic AD-MSCs preconditioned with photobiomodulation had significantly risen cell function compared to diabetic AD-MSC. Groups 3 and 5 had significantly decreased microbial flora correlated to groups 1 and 2 (all, p = 0.000). Groups 2, 3, 4, and 5 had significantly improved wound closure rate (0.4, 0.4, 0.4, and 0.8, respectively) compared to group 1 (0.2). Groups 2–5 had significantly increased wound strength compared to group 1 (all p = 0.000). In most cases, group 5 had significantly better results than groups 2, 3, and 4. Conclusions Preconditioning diabetic AD-MSCs with photobiomodulation in vitro plus photobiomodulation in vivo significantly hastened healing in the diabetic rat model of an ischemic infected delayed healing wound.

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