scholarly journals Therapeutic Effects of 5,7-Dihydroxy-6-Oxoheptadecanoic Acid on Dysglycemia, Dyslipidemia, and Other Complications in Diabetic Rats

2020 ◽  
Vol 15 (7) ◽  
pp. 1934578X2093720
Author(s):  
Cuilan An ◽  
Lingling Wang ◽  
Yongli Liu ◽  
Emmanuel Ayobami Makinde ◽  
Huilian Li ◽  
...  
Keyword(s):  
Liver Function ◽  
Serum Insulin ◽  
Low Density Lipoprotein ◽  
Fasting Blood Glucose ◽  
Density Lipoprotein ◽  
Insulin Level ◽  
Diabetic Rats ◽  
The Body ◽  
Antioxidant Enzyme Activities ◽  
Therapeutic Effects

The current study aimed to investigate the therapeutic effects of 5,7-dihydroxy-6-oxoheptadecanoic acid (DHA) from Tiliacora triandra on rat models of type 2 diabetes mellitus (T2DM). T2DM was induced with a combination of high-fat diet/streptozotocin (HFD/STZ), and diabetic rats were treated with DHA (25 mg/kg) for 30 days. The body weight, fasting blood glucose (FBG), serum, and liver biochemical parameters, as well as histological evaluations of the liver and pancreas, were evaluated. Diabetic rats displayed a significant increase in FBG, serum lipid profiles (triglycerides, total cholesterol, and low-density lipoprotein cholesterol), liver function enzymes (aspartate transaminase, alkaline phosphatase, and alanine transaminase), creatinine, liver malondialdehyde (MDA), and myeloperoxidase (MPO) contents. Furthermore, insulin level and liver antioxidant enzyme activities (catalase [CAT], superoxide dismutase [SOD], and glutathione peroxidase [GSH-Px]) were significantly reduced in the diabetic rats. Whereas, treatment with DHA significantly reduced FBG, serum lipids, liver function enzymes, serum creatinine, liver MDA, and MPO contents. In addition, treatment with DHA significantly increased serum insulin level and liver SOD, CAT, and GSH-Px activities. In addition, DHA alleviated histopathological changes in the pancreas and liver caused by T2DM. These results portray the antidiabetic and antioxidative properties of DHA and can be considered as a potential treatment for T2DM.

scholarly journals Pleurotus tuber-regiumPolysaccharides Attenuate Hyperglycemia and Oxidative Stress in Experimental Diabetic Rats

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Hui-Yu Huang ◽  
Mallikarjuna Korivi ◽  
Ying-Ying Chaing ◽  
Ting-Yi Chien ◽  
Ying-Chieh Tsai
Keyword(s):  
Oxidative Stress ◽  
Serum Insulin ◽  
Glycosylated Hemoglobin ◽  
Low Density Lipoprotein ◽  
Fasting Blood Glucose ◽  
Antioxidant Properties ◽  
Density Lipoprotein ◽  
Diabetic Rats ◽  
High Fat ◽  
And Oxidative Stress

Pleurotus tuber-regiumcontains polysaccharides that are responsible for pharmacological actions, and medicinal effects of these polysaccharides have not yet been studied in diabetic rats. We examined the antidiabetic, antihyperlipidemic, and antioxidant properties ofP. tuber-regiumpolysaccharides in experimental diabetic rats. Forty rats were equally assigned as diabetic high-fat (DHF) diet and polysaccharides treated DHF groups (DHF+1P, DHF+2P, and DHF+3P, 20 mg/kg bodyweight/8-week). Diabetes was induced by chronic low-dose streptozotocin injections and a high-fat diet to mimic type 2 diabetes. Polysaccharides (1P, 2P, and 3P) were extracted from three different strains ofP. tuber-regium. Fasting blood glucose and glycosylated hemoglobin (HbA1c) levels substantially decreased, while serum insulin levels were restored by polysaccharides treatment compared to DHF. Furthermore, plasma total cholesterol, triglycerides, and low-density lipoprotein levels were significantly(P<0.01)lower in polysaccharide groups. High-density lipoprotein levels were attenuated with polysaccharides against diabetes condition. Polysaccharides inhibited(P<0.01)the lipid peroxidation index (malondialdehyde), and restored superoxide dismutase and glutathione peroxidase activities in the liver of diabetic rats. The antihyperglycemic property of polysaccharides perhaps boosts the antioxidant system that attenuates oxidative stress. We emphasize thatP. tuber-regiumpolysaccharides can be considered as an alternative medicine to treat hyperglycemia and oxidative stress in diabetic rats.

scholarly journals Bilobalide Enhances AMPK Activity to Improve Liver Injury and Metabolic Disorders in STZ-Induced Diabetes in Immature Rats via Regulating HMGB1/TLR4/NF-κB Signaling Pathway

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Meng Zhao ◽  
Jianpin Qin ◽  
Wenting Shen ◽  
Aiping Wu
Keyword(s):  
Liver Injury ◽  
Serum Insulin ◽  
Low Density Lipoprotein ◽  
Fasting Blood Glucose ◽  
Density Lipoprotein ◽  
Blood Lipid ◽  
Diabetic Rats ◽  
Compound C ◽  
Group I ◽  
Immature Rats

This study was aimed at examining the effect and underlying mechanisms of bilobalide (BB) on hepatic injury in streptozotocin- (STZ-) induced diabetes mellitus (DM) in immature rats. Immature rats (one day old) were randomly divided into five groups: group I, control nondiabetic rats; group II, STZ-induced, untreated diabetic rats; groups III/IV/V, STZ-induced and BB-treated diabetic rats, which were intraperitoneally injected with BB (2.5 mg/kg, 5 mg/kg, or 10 mg/kg) after 3 days followed by STZ treatment. We observed that BB improved the histopathological changes and maintained normal glucose metabolism, blood lipid, and liver function indicators, such as fasting blood glucose, obesity index, HbA1c, HOMA-IR, fast serum insulin, adiponectin, total cholesterol (TC), triglyceride (TG), high-density lipoprotein (HDL), low-density lipoprotein (LDL), aspartate transaminase (AST), and alanine transaminase (ALT) in STZ-induced DM in immature rats by a biochemical analyzer or ELISA. Meanwhile, Western blot analysis showed that in STZ-induced DM immature rats, BB decreased the expression of apoptosis-related proteins Bax, cleaved caspase-3, and cleaved caspase-9 while enhancing the Bcl-2 expression; BB downregulated the expression of ACC related to fat anabolism, while upregulating the expression of CPT-1 related to fat catabolism. Strikingly, treatment with BB significantly increased the expression of AMPKα1 as well as inhibited HMGB1, TLR4, and p-P65 expression in hepatic tissues of immature DM rats. AMPK inhibitor (compound C, CC) cotreated with BB undermined the protective effect of BB on the liver injury. The results of the present study suggested BB may have a significant role in alleviating liver damage in the STZ-induced immature DM rats.

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.

scholarly journals Serum Apelin and Obesity-Related Complications in Egyptian Children

2018 ◽  
Vol 6 (8) ◽  
pp. 1354-1358 ◽  
Author(s):  
Maged A. El Wakeel ◽  
Ghada M. El-Kassas ◽  
Alyaa H. Kamhawy ◽  
Essam M. Galal ◽  
Maysa S. Nassar ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Childhood Obesity ◽  
Serum Insulin ◽  
Low Density Lipoprotein ◽  
Linear Regression Analysis ◽  
Fasting Blood Glucose ◽  
Density Lipoprotein ◽  
Z Score ◽  
Obese Children ◽  
Egyptian Children

BACKGROUND: The rapidly increasing prevalence of childhood obesity became a major burden on health worldwide, giving an alarm to clinicians and researchers. Adipocytes act as an active endocrine organ by releasing plenty of bioactive mediators (adipokines) that play a major role in regulating metabolic processes. Apelin is a recently identified adipokine that is expressed in adipocytes.AIM: The current work aimed to uncover the relation between serum apelin and childhood obesity and its related complications as hypertension and hyperglycemiaMETHOD: A group of 50 obese and 31 non-obese; sex- and age-matched children were enrolled in our study with a mean age of (9.5 ± 2.1) and (8.7 ± 1.3) respectively. Anthropometric measurements, blood pressure, were assessed in all studied participants, we also determined the lipid profile, serum insulin, fasting blood glucose (FBG) level, HOMA-IR and serum apelin.RESULTS: Obese children had higher levels of HbA1c, FBG, serum insulin, HOMA-IR, total cholesterol, triglycerides, low-density lipoprotein (LDL) and diastolic blood pressure (DBP Z-score); compared to controls (all P < 0.05). Apelin was significantly higher in obese children versus controls and correlated positively with BMI Z-Score (P = 0.008), DBP Z-Score (P = 0.02), cholesterol, TG (both P = 0.02), serum insulin (P = 0.003), FBG and HOMA-IR (both P = 0.001). Linear regression analysis showed that FBG was the most effective factor in predicting the level of serum apelin (P = 0.04).CONCLUSION: This work supports the hypothesis that apelin may have a crucial role in the pathogenesis of health hazards related to obesity in children including insulin resistance, hypertension and a higher risk of occurrence of metabolic syndrome.

scholarly journals PIPER CHABA EXTRACTS WITH ANTIBIOFILM ACTIVITY INFLUENCE ANTIHYPERGLYCEMIC AND ANTIHYPERLIPIDEMIC RESPONSES IN DIABETIC WISTER RATS

2021 ◽  
pp. 44-49
Author(s):  
SULTANA RAJIA ◽  
KHADIZA KHANAM ◽  
UMME FARHANA ◽  
SOHANUR RAHMAN ◽  
RASHIDUL HAQUE
Keyword(s):  
Ethyl Acetate ◽  
Therapeutic Potential ◽  
Low Density Lipoprotein ◽  
Fasting Blood Glucose ◽  
Intraperitoneal Administration ◽  
Density Lipoprotein ◽  
Antimicrobial Activities ◽  
Positive Control ◽  
Diabetic Rats ◽  
Antibiofilm Activity

Objectives: Piper chaba, native to South and Southeast Asia, has been traditionally used as a medicinal plant. Aim of this study was to evaluate the antihyperglycemic and antihyperlipidemic activities of P. chaba root extracts (RE) in streptozotocin (STZ)-induced diabetic rats along with its antimicrobial activity. Methods: Diabetes was induced in Wister rats through the intraperitoneal administration of STZ (50 mg/kg b.w.). Antidiabetic and antilipidemic activities of the RE (in methanol, ethanol, ethyl acetate and distilled water) were evaluated by administering oral dose (200 mg/kg b.w.) for 21 days. Metformin (12.1 mg/kg b.w.) was used as a positive control. Blood samples of rats were drawn by tail vein puncture and cardiac puncture to determine the fasting blood glucose (FBG) and serum level of total cholesterol (TC), triglycerides (TG), low-density lipoprotein (LDL), and high-density lipoprotein (HDL), respectively. Standard protocols were followed to determine the antimicrobial and antibiofilm activities against two different strains of bacteria. Results: Oral administration of P. chaba RE for 21 days resulted in a significant (p< 0.001) decrease in FBG and TC, TG, and LDL levels (p<0.001), when compared to the untreated diabetic rats. Significant (p<0.001) increase of HDL was observed when ethyl acetate and aqueous RE were administered. Out of four, two extracts showed varying antimicrobial activities, particularly against the gram-positive bacteria.  Conclusion: It became evident for the first time that P. chaba extracts possess antimicrobial activities and can serve as biochemical compounds with great alternative therapeutic potential in the management of diabetes and hypercholesterolemia.

scholarly journals Glycaemic, Lipidaemic and Antioxidant Profiles of Alloxan-Induced Diabetic Wistar Rats Treated with Glibenclamide and Aqueous Extract of Gongronema latifolium (Benth)

2016 ◽  
Vol 8 (4) ◽  
pp. 408-413
Author(s):  
Patrick Emeka ABA
Keyword(s):  
Wistar Rats ◽  
Combined Therapy ◽  
Low Density Lipoprotein ◽  
Fasting Blood Glucose ◽  
Density Lipoprotein ◽  
Study Groups ◽  
Oral Route ◽  
Diabetic Rats ◽  
Glucose Levels ◽  
Male Wistar Rats

The current study investigated the ameliorative effects of combined therapy of glibenclamide and G. latifolium (GL) on several biochemical parameters of alloxaized Wistar rats. Thirty adult male Wistar rats assigned into 5 groups of 6 rats each were used for the study. Groups 2-5 were intraperitoneally injected with 160 mg/kg of alloxan monohydrate and upon establishment of diabetes (Fasting Blood Glucose (FBG) ≥ 126 mg/dl) were treated with 10 ml/kg distilled water (DW), 2 mg/kg glibenclamide, 200 mg/kg GL and 2 mg/kg glibenclamide and 200 mg/kg GL respectively. Rats in group 1 were not made diabetic and served as normal control. All the treatments were realized through daily oral route using gastric tube, for 21 days. Results indicated that the treatment of diabetic rats with a combination of glibenclamide and GL significantly reduced the elevated glucose levels, cholesterol, triacylglycerol, low density lipoprotein and malondialdehyde levels, along with increases in the high density lipoprotein, glutathione values and catalase activities, when compared to diabetic untreated group. It was concluded that the combined therapy of glibenclamide and GL showed superior antihyperglycemic, hypolipidaemic and antioxidant effects compared to either of them used alone.

scholarly journals Antidiabetic and Antioxidant Properties ofTriticum aestivumin Streptozotocin-Induced Diabetic Rats

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Yogesha Mohan ◽  
Grace Nirmala Jesuthankaraj ◽  
Narendhirakannan Ramasamy Thangavelu
Keyword(s):  
Triticum Aestivum ◽  
Body Weight ◽  
Glycosylated Hemoglobin ◽  
Low Density Lipoprotein ◽  
Fasting Blood Glucose ◽  
Density Lipoprotein ◽  
Diabetic Rats ◽  
Albino Rats ◽  
Low Density ◽  
Marker Enzyme

The antidiabetic and antioxidant potential ofTriticum aestivumwere evaluated by usingin vivomethods in normal and streptozotocin-induced diabetic rats. Diabetes was induced in the Wistar strain albino rats by injecting streptozotocin at a dose of 55 mg/kg body weight. Ethanolic extracts ofTriticum aestivumat doses of 100 mg/kg body weight were administered orally for 30 days. Various parameters were studied and the treatment group with the extract showed a significant increase in the liver glycogen and a significant decrease in fasting blood glucose, glycosylated hemoglobin levels, and serum marker enzyme levels. The total cholesterol and serum triglycerides levels, low density lipoprotein, and very low density lipoprotein were also significantly reduced and the high density lipoprotein level was significantly increased upon treatment with theTriticum aestivumethanol extract. A significant decrease in the levels of lipid peroxides, superoxide dismutase, and glutathione peroxidise and increase in the levels of vitamin E, catalase, and reduced glutathione were observed inTriticum aestivumtreated diabetic rats. Thus, from this study we conclude that ethanolic extract ofTriticum aestivumexhibited significant antihyperglycemic, hypolipidemic, and antioxidant activities in streptozotocin-induced diabetic rats.

Anti-Diabetic Activity of Polysaccharides from Agaricus bisporus Mycelia

2014 ◽  
Vol 1073-1076 ◽  
pp. 1808-1811
Author(s):  
Tao Ying Zhou ◽  
Xing Yuan Li ◽  
Nian You Chen ◽  
Zi Lin Wang ◽  
Liang Bin Yu ◽  
...  
Keyword(s):  
Body Weight ◽  
Agaricus Bisporus ◽  
Serum Insulin ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
The Body ◽  
Lipoprotein Cholesterol ◽  
Low Density ◽  
Low Density Lipoprotein Cholesterol ◽  
Increase Body Weight

The present study was carried out to evaluate the anti-diabetic activity of polysaccharides from Agaricus bisporus mycelia (PABM) in alloxan-induced diabetes mellitus (DM) mice. After administration with 100, 200 and 400 mg/kg body weight of PABM to DM mice for 28 days, the effects of PABM on the body weight, blood glucose, serum insulin, total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) levels were monitored. The results showed that the PABM could increase body weight, serum insulin and HDL-C levels, as well as decrease TC, TG and LDL-C levels in DM mice. PABM possess anti-diabetic activity.

scholarly journals Exercise training and de-training effects on serum leptin and TNF-α in high fat induced diabetic rats

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Hamideh Dinari Ghozhdi ◽  
Ali Heidarianpour ◽  
Maryam Keshvari ◽  
Hassan Tavassoli
Keyword(s):  
Exercise Training ◽  
Serum Insulin ◽  
Fasting Blood Glucose ◽  
Density Lipoprotein ◽  
Diabetic Rats ◽  
Normal Diet ◽  
Aerobic Exercise Training ◽  
High Fat ◽  
Serum Leptin ◽  
Tnf Α

Abstract Background Adipocytokines, which are secreted by the adipose tissue, contribute to the pathogenesis of obesity-related complications. To evaluate this assumption, we investigated the effects of aerobic exercise training (AET), resistance exercise training (RET), and 4 weeks of de-training on serum leptin and TNF-α levels in diabetic rats. Method 36 Wistar rats were divided into normal diet (ND) (control, RET, AET) and high-fat diet (HFD) + STZ (control, RET, AET) groups. Serum insulin, leptin, and TNF-α levels were assessed by commercial ELISA kits. Also fasting blood glucose (FBG), low-density lipoprotein cholesterol (LDL-C), and triglycerides (TG) levels were measured by the colorimetric kits. Results Diabetes induction increased body weight (BW) and FBG, and decreased insulin compared to the ND rats’ groups (p < 0.001). 12-weeks of AET and RET programs in the trained diabetic rats led to a decrease in TG, LDL-C, leptin, TNF-α, and FBG, and an increase in insulin compared to the HFD + STZ-C group (p < 0.001). Besides, there was no difference between AET and RET in improving the variables studied (p > 0.05). Also, de-training led to increased BW, TG, leptin, and TNF-α compared to the end of the exercise training (p < 0.05). The correlation between the variables studied was established at different stages of the study (p < 0.05), and only BW was not correlated with insulin during exercise training and de-training (p > 0.05). Conclusion These findings indicate that both AET and RET are useful in reducing levels of serum adipocytokines (TNF-α, leptin) in diabetic and non-diabetic rats. At the same time, 4 weeks of de-training was sufficient to lose the metabolic adaptations.

scholarly journals Compared to liver, bile duct and skeletal muscle garlic (versus normal saline) only enhances pancreas insulin m-RNA transcription that corresponds to islets cellular plasticity and local and circulating hyperinsulinemia in diabetic rats

2021 ◽  
Author(s):  
Amani Mustafa Al-Adsani ◽  
Khaled Khalil Al-Qattan
Keyword(s):  
Skeletal Muscle ◽  
Bile Duct ◽  
Normal Saline ◽  
Serum Insulin ◽  
Fasting Blood Glucose ◽  
Diabetic Rats ◽  
The Body ◽  
Cellular Plasticity ◽  
Rna Transcription ◽  
Pancreatic Insulin

Abstract Background: Garlic aqueous extract (GE) augments insulin circulating concentration in streptozotocin-induced type-1 diabetes mellitus (STZ-DM) rat model. Objective: This study investigated at 4 stages in a time-line fashion whether modifications in insulin m-RNA transcription occur, and if they do, are they related to accumulative changes in insulin - serum and tissue concentrations and immunohistochemical (IHC) localizations and plasticities as part of the GE-induced insulinogenic mechanism(s) in the pancreas, liver, bile duct and gastrocnemius skeletal muscle (GSM) of STZ-DM rats. Method: The body weight, food and water intake, urine output, fasting blood glucose (FBG), serum insulin (SI), in addition to tissues insulin concentrations, IHC localizations and numerical intensities and m-RNA transcriptions were investigated before (basal level = BL) and after 1, 4 and 8 weeks of oral treatment in normal rats given normal saline (NR-NS), diabetic rats given normal saline (DR-NS) and diabetic rats given GE (DR-GE). The readings collected were compared using two-way ANOVA with LSD post-hoc test (IBM SPSS - V.22) and differences were considered significant when P <0.05.Results: Compared to NR-NS, DR-NS showed typical diabetic biophysical symptoms in addition to significant accumulative increases in FBG and reductions in SI, which corresponded positively with reductions in pancreatic insulin IHC localization and numerical intensity and m-RNA transcription. Conversely, and in comparison to DR-NS, DR-GE showed amelioration of diabetic biophysical symptoms, in addition to significant accumulative decreases in FBG and increases in SI, which corresponded positively with increases in pancreatic insulin IHC localization and numerical intensity and m-RNA transcription. The liver, bile duct and GSM did not show any changes in the targeted parameters (or indicators of insulin synthesis: proinsulin or C-peptide) in response to GE treatment. Conclusion: GE induced increases in circulating insulin concentration could have been due to increases in pancreas insulin concentrations as a result of an enhancement in islets cellular plasticity and m-RNA transcription. Accordingly, garlic insulinogenic action could be partly due to modification of pancreas genetic expression.

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