scholarly journals Limosilactobacillus fermentum MG4295 Improves Hyperglycemia in High-Fat Diet-Induced Mice

Foods ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 231
Author(s):  
Ji Eun Kim ◽  
Ji Yeon Lee ◽  
Chang-Ho Kang

Hyperglycemia due to uncontrolled glucose regulation is widely known as cause of diabetes, non-alcoholic fatty liver disease (NAFLD), and other complications. NAFLD refers to a condition in which fat is excessively accumulated, whether inflamed or not, and has caused serious medical problems in recent years. The aim of this study was to explore the antihyperglycemia effects of Limosilactobacillus fermentum MG4295 (L. fermentum MG4295) in high-fat diet (HFD)-induced in vivo. We demonstrated the suitability of L. fermentum MG4295 as a probiotic by observing its stability, survivability, and proliferation under simulated gastrointestinal conditions, and safety, antibiotic susceptibility, hemolysis, and enzyme activity. The potential antihyperglycemic activity of L. fermentum MG4295 was investigated in an HFD and sugar-water-induced mouse model. Administration of this strain for 12 weeks showed an improved trend in glucose tolerance, insulin, alanine amino transferase, total cholesterol, low-density lipoprotein cholesterol, and glucagon-like peptide-1. Histopathological analysis revealed that L. fermentum MG4295 significantly reduced the histopathological scores of hepatic steatosis, inflammation, and hepatocellular hypertrophy in liver tissues and lipid content in adipose tissues. Administration of L. fermentum MG4295 upregulated IRS-1, AKT, and GLUT4 and downregulated G6Pc and PEPCK expression in liver and/or muscle tissues. Our results suggest that L. fermentum MG4295 can improve hyperglycemia. Furthermore, it can be used as a dietary functional supplement to manage blood glucose.

Nutrients ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2837 ◽  
Author(s):  
Beom-Rak Choi ◽  
Hyun-Jee Kim ◽  
Young-Joon Lee ◽  
Sae-Kwang Ku

The present study examined the effects of Wasabi leaf (WL) on 45% Kcal high-fat diet (HFD)-fed mild diabetic obese mice. In particular, the hepatoprotective (i.e., liver weight, histopathology of liver, serum aspartate aminotransferase, alanine aminotransferase, and gamma-glutamyltransferase) effects of 12 weeks of continuous oral administration of 250 mg/kg metformin, and 200, 100, or 50 mg/kg WL were investigated. In addition, the hypolipidemic (i.e., serum triglyceride, total cholesterol, high-density lipoprotein-cholesterol, and low-density lipoprotein levels), hypoglycemic (i.e., glycated hemoglobin, blood glucose and insulin levels, pancreatic weight, and immunohistochemical-histopathological analysis of the pancreas), and anti-obesity effects (i.e., body weight, mean food consumption, total and abdominal body fat mass, periovarian fat weight, and histopathology of the periovarian and abdominal wall adipocytes) were monitored. The liver and general antioxidant defense systems were also assessed by lipid metabolism-related gene expression. All diabetes manifestations and related complications, including obesity and non-alcoholic fatty liver disease (NAFLD), were dose-dependently reduced after 84 days of oral treatment with metformin or each of the three dosages of WL. In particular, 50 mg/kg WL showed effective suppression effects against HFD-induced diabetes and related complications of obesity, NAFLD, and hyperlipidemia, comparable to the effects of metformin.


2012 ◽  
Vol 111 (suppl_1) ◽  
Author(s):  
Aijun Sun ◽  
Xueting Jin ◽  
Jingjing Zhao ◽  
Keqiang Wang ◽  
Fang Xu ◽  
...  

Aims: Probucol, an agent characterized by lipid-lowering and anti-oxidant property, retards atherosclerosis effectively. Our study aimed to test the hypothesis that probucol might act its anti-athersclerotic role by suppressing maturation of human monocyte-derived dendritic cells (h-monDC). Furthermore, we also used a LDLR-/- mice model fed a high-fat diet to detect whether probucol also perform its anti-atherosclerotic effect on suppressing DCs maturation in vivo. Methods: H-monDCs were derived by incubating purified human monocytes with GM-CSF and IL-4. H-monDCs were pre-incubated with or without probucol and stimulated by oxidized low-density lipoprotein (ox-LDL) in the presence or absence of heme oxygenase (HO-1) siRNA. In vivo studies, streptozotocin (STZ) induced LDLR-/- mice were fed either a high-fat (HF) diet or added with 0.5% probucol for 4 months. Expression of h-monDC membrane molecules and mice splenic CD11c+DC membrane molecules were analyzed by FACS, cytokines were measured by ELISA and the STAT1/CIITA associated signaling pathway was determined by Western blotting. Mice aortic lesions were observed by En face staining and the expression of CD11c+DCs within atherosclerotic plaques were shown under confocal microscopy. Results: Ox-LDL promoted h-monDC maturation and TNF-a production; and up-regulated STAT1 701 phosphorylation by activating HO-1 in STAT1/CIITA signaling pathway. These effects were inhibited by probucol. Knocking down HO-1 with specific siRNA blocked these effects of probucol. In LDLR-/- mice fed a high-fat diet, probucol treatment significantly regressed aortic atherosclerotic lesions, suppressed splenic CD11c+DCs maturation and IL-12p70 production; and resulted in absence of CD11c+DCs within atherosclerotic lesions. Conclusions: Our study indicated that probucol effectively suppressed maturation of h-monDC induced by ox-LDL through HO-1 activation, and retarded atherosclerosis at least partly through inhibiting maturations of CD11c+DCs in LDLR-/- mice.


2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Débora Maria Soares de Souza ◽  
Guilherme de Paula Costa ◽  
Ana Luísa Junqueira Leite ◽  
Daniela Silva de Oliveira ◽  
Kelerson Mauro de Castro Pinto ◽  
...  

The protozoan Trypanosoma cruzi is responsible for triggering a damage immune response in the host cardiovascular system. This parasite has a high affinity for host lipoproteins and uses the low-density lipoprotein (LDL) receptor for its invasion. Assuming that the presence of LDL cholesterol in tissues could facilitate T. cruzi proliferation, dietary composition may affect the parasite-host relationship. Therefore, the aim of this study was to evaluate myocarditis in T. cruzi-infected C57BL/6 mice—acute phase—fed a high-fat diet and treated with simvastatin, a lipid-lowering medication. Animals (n=10) were infected with 5×103 cells of the VL-10 strain of T. cruzi and treated or untreated daily with 20 mg/kg simvastatin, starting 24 h after infection and fed with a normolipidic or high-fat diet. Also, uninfected mice, treated or not with simvastatin and fed with normolipidic or high-fat diet, were evaluated as control groups. Analyses to measure the production of chemokine (C-C motif) ligand 2 (CCL2), interferon- (IFN-) γ, interleukin- (IL-) 10, and tumor necrosis factor (TNF); total hepatic lipid dosage; cholesterol; and fractions, as well as histopathological analysis, were performed on day 30 using cardiac and fat tissues. Our results showed that the high-fat diet increased (i) parasite replication, (ii) fat accumulation in the liver, (iii) total cholesterol and LDL levels, and (iv) the host inflammatory state through the production of the cytokine TNF. However, simvastatin only reduced the production of CCL2 but not that of other inflammatory mediators or biochemical parameters. Together, our data suggest that the high-fat diet may have worsened the biochemical parameters of the uninfected and T. cruzi-infected animals, as well as favored the survival of circulating parasites.


2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Rahimullah Siddiqui ◽  
Haja Nazeer Ahamed ◽  
Ismail Yusuff

Abstract Background Hyperlipidemia is a major cause for atherosclerosis which is a frontline cause for mortality in the world. Bisflavonoids are dimeric flavonoids abundant in few medicinal herbs with various pharmacological effects. However, in vivo anti-hyperlipidemic role of bisflavonoids (BFR) is limited. The present investigation is aimed to study BFR from the leaf extract of Araucaria bidwillii Hook. in rat model of hyperlipidemia. Results Administration of HFD was significantly (p < 0.0001) shown to increase total cholesterol (TC), low-density lipoprotein (LDL), and triglycerides (TG) associated with decrease in HDL. BFR at two doses significantly decreased TC, LDL, and TG in HFD-fed rats. In addition, BFR significantly (p < 0.0001) decreased the MDA and significantly (p < 0.0001) increased the impaired anti-oxidant enzyme SOD and CAT in heart tissue induced by HFD. Further, 28 days administration of BFR significantly (p < 0.001) decreased HFD-induced aortic wall thickness. Conclusion It can be concluded that bisflavonoids from A. bidwillii Hook. leaf extract administered to high fat-fed rats showed beneficial anti-hyperlipidemic effect by reducing lipid profiles and protecting the heart tissue from oxidative stress.


2017 ◽  
Vol 16 (10) ◽  
pp. 2417-2423
Author(s):  
Aqsa Ashfaq ◽  
Arif-ullah Khan ◽  
Amber Mahmood Minhas ◽  
Tahir Aqeel ◽  
Asaad M. Assiri ◽  
...  

Purpose: To investigate the anti-hyperlipidemic effect of Caralluma edulis and  Verbena officinalis.Methods: Phytochemical analysis of crude extracts of Caralluma edulis (Ce.Cr) and Verbena officinalis (Vo.Cr) were carried out. Hyperlipidemia was induced in mice with high-fat diet (HFD, 1.25 % w/w cholesterol, 0.5 % w/w cholic acid and 10 % v/w coconut oil). All the groups, except the saline-treated group, were fed on HFD for 4 weeks (lead-in period) to induce hyperlipidemia. Thereafter, the groups were treated with varying doses of the plant extract for 2 weeks (treatment period) as well as atorvastatin (10 mg/kg) reference standard. Body weight was measured fortnightly for all groups. Total cholesterol (TC), triglyceride (TGs) and low density lipoprotein (LDL) were assayed using Merck diagnostic kits. For histopathological analysis, liver slices were fixed in 10 % formalin and embedded in paraffin wax and was examined with the aid of hematoxylin and eosin staining (H & E).Results: Caralluma edulis (Ce.Cr) contains saponins, alkaloids, tannins, phenol, glycosides, terpenoids and flavonoids while Verbena officinalis (Vo.Cr) tested  positive for the presence of alkaloids, carbohydrates, flavonoids, saponins and tannins. HFD increased total cholesterol (TC), triglyceride (TGs), low density  lipoprotein (LDL) and very low density lipoprotein (VLDL) compared to regulator diet (p < 0.001). Treatment of the animals with Ce.Cr and Vo.Cr dose-dependently (500 - 1000 mg/kg) reduced serum TC, TGs, LDL and VLDL (p < 0.05, p < 0.01, p < 0.001, vs. HFD group) and raised high density lipoprotein (HDL) (p < 0.01, vs. HFD group), similar to that observed with atorvastatin (10 mg/kg). The  anti-hyperlipidemic effects of Ce.Cr and Vo.Cr were also confirmed via liver  histopathology results, showing improved structure with no hepatocellular necrosis and fat accumulation.Conclusion: These results indicate that Caralluma edulis and Verbena officinalis  exhibit antihyperlipidemic effect; thus, the plants have therapeutic potentials for the management of lipid disorders.Keywords: Caralluma edulis, Verbena officinalis, Anti-hyperlipidemia,   Hepatocellular necrosis


2013 ◽  
Vol 41 (03) ◽  
pp. 487-502 ◽  
Author(s):  
Wei-Xi Cui ◽  
Jie Yang ◽  
Xiao-Qing Chen ◽  
Qian Mao ◽  
Xiang-Lan Wei ◽  
...  

Non-alcoholic fatty liver disease (NAFLD) has become a major challenge to the healthcare system. This study was designed to evaluate the effect of the triterpenoid-rich fraction (TF) from Ilex hainanensis Merr. on NAFLD. Male Sprague-Dawley (SD) rats were fed a normal diet (control) or high fat diet (NAFLD model). After four weeks, the high fat diet group was orally administrated TF (250 mg/kg) for another two weeks. High fat diet fed rats displayed hyperlipidemia and a decline in liver function compared with control. However, administration with TF could effectively improve these symptoms, as demonstrated by decreasing the plasma levels of triglyceride (p <0.05), total cholesterol (p < 0.01), low-density lipoprotein cholesterol (p < 0.05), alanine transaminase (p < 0.05), aspartate aminotransferase (p < 0.01), liver index (p < 0.05) and insulin resistance index (p < 0.05) while increasing the high-density lipoprotein cholesterol (p < 0.05). Meanwhile, histopathological examination of livers also showed that TF could reduce the incidence of liver lesions induced by high fat diet. Furthermore, TF could alleviate oxidative stress and inflammation status indicated by the decline malondialdehyde and superoxide dismutase levels (p < 0.01, both) and levels of interleukin 6 and tumor necrosis factor-α (p < 0.05). In addition, immunohistochemistry showed TF evidently elevated the peroxisome proliferator-activated receptor (PPARα) expression (p < 0.01), while it diminished the Cytochrome P450 2E1 (CYP2E1) expression (p < 0.01) in liver. These results demonstrate that TF has potential ability to protect liver against NAFLD by regulating lipids metabolism and alleviating insulin resistance, inflammation and oxidative stress. This effect might be associated with regulating PPARα and CYP2E1 expression.


2019 ◽  
Vol 10 (2) ◽  
pp. 1181-1184
Author(s):  
Satheesh Naik K ◽  
Gurushanthaiah M ◽  
Nagesh Raju G ◽  
Lokanadham S ◽  
Seshadri Reddy V

Eclipta Alba has been used in traditional and folklore medicine to treat Hyperlipidemia and hepatic disorders. The present study was aimed to investigate the Antihyperlipidemic and hepatoprotective potentials of Eclipta Alba in high-fat diet -induced Albino rats and to determine the underlying mechanism.  A total of 30 adult albino rats of Wistar strain weighing 165–215 g were utilized. Animals were treated with high-fat diet for 8 weeks followed by post-treatment of E. Alba for 1 week, 2 weeks, and 3 weeks, respectively. After 12 h of fasting on the last day of the experiment, serum blood samples were collected in EDTA vials and processed for biochemical analysis.  A significant decrease in levels of total cholesterol and triglycerides was noted on animals treated with E. alba compared to high-fat diet animals. Treatment of hypercholesterolemic rats with E. Alba showed a marked decrease of serum low-density lipoprotein (LDL) and very LDL cholesterol concentrations compared to the hypercholesterolemic rats. High-fat diet feeding worsened the levels of serum glutamic oxaloacetic transaminase, serum glutamic pyruvic transaminase, and alkaline phosphatase enzymes, whereas the same markers were significantly improved by supplementation with E. alba compared to the normal group.  E. alba acts as an antihyperlipidemic agent in hyperlipidemic conditions and helps for better health.


2020 ◽  
Vol 39 (8) ◽  
pp. 1005-1018 ◽  
Author(s):  
I Cinar ◽  
Z Halici ◽  
B Dincer ◽  
B Sirin ◽  
E Cadirci

The presence of 5-HT7r’s in both human and rat cardiovascular and immune tissues and their contribution to inflammatory conditions prompted us to hypothesize that these receptors contribute in acute myocardial infarction (MI) with underlying chronic endothelial dysfunction. We investigated the role of 5-HT7 receptors on heart tissue that damaged by isoproterenol (ISO)-induced MI in rats with high-fat diet (HFD). In vitro and in vivo effects of 5-HT7r agonist (LP44) and antagonist (SB269970) have been investigated on the H9C2 cell line and rats, respectively. For in vivo analyses, rats were fed with HFD for 8 weeks and after this period ISO-induced MI model has been applied to rat. To investigate the role of 5-HT7r’s, two different doses of LP44 and SB269970 were evaluated and compared with standard hypolipidemic agent, atorvastatin. In vitro studies showed that LP44 has protective and proliferative effects on rat cardiomyocytes. Also in in vivo studies stimulating 5-HT7r’s by LP44 improved blood lipid profile (decreased total cholesterol, low-density lipoprotein-C, and triglyceride, increased high-density lipoprotein), decreased cardiac damage markers (creatine kinase and troponin-I), and corrected inflammatory status (tumor necrosis factor-α, interleukin-6). Our results showed significant improvement in LP44 administered rats in terms of histopathologic analyses. In damaged tissues, 5-HT7 mRNA expression increased and agonist administration decreased this elevation significantly. We determined for the first time that 5-HT7r’s are overexpressed in ISO-induced MI of rats with underlying HFD-induced endothelial dysfunction. Restoration of this overexpression by LP44, a 5-HT7r agonist, ameliorated heart tissue in physiopathologic, enzymatic, and molecular level, showing the cardiac role of these receptors and suggesting them as future potential therapeutic targets.


2018 ◽  
Vol 19 (12) ◽  
pp. 3903 ◽  
Author(s):  
Xiaofei Zhu ◽  
Jingyi Yang ◽  
Wenjuan Zhu ◽  
Xiaoxiao Yin ◽  
Beibei Yang ◽  
...  

The natural compound berberine has been reported to exhibit anti-diabetic activity and to improve disordered lipid metabolism. In our previous study, we found that such compounds upregulate expression of sirtuin 1—a key molecule in caloric restriction, it is, therefore, of great interest to examine the lipid-lowering activity of berberine in combination with a sirtuin 1 activator resveratrol. Our results showed that combination of berberine with resveratrol had enhanced hypolipidemic effects in high fat diet-induced mice and was able to decrease the lipid accumulation in adipocytes to a level significantly lower than that in monotherapies. In the high fat diet-induced hyperlipidemic mice, combination of berberine (25 mg/kg/day, oral) with resveratrol (20 mg/kg/day, oral) reduced serum total cholesterol by 27.4% ± 2.2%, and low-density lipoprotein-cholesterol by 31.6% ± 3.2%, which was more effective than that of the resveratrol (8.4% ± 2.3%, 6.6% ± 2.1%) or berberine (10.5% ± 1.95%, 9.8% ± 2.58%) monotherapy (p < 0.05 for both). In 3T3-L1 adipocytes, the treatment of 12 µmol/L or 20 µmol/L berberine combined with 25 µmol/L resveratrol showed a more significant inhibition of lipid accumulation observed by Oil red O stain compared with individual compounds. Moreover, resveratrol could increase the amount of intracellular berberine in hepatic L02 cells. In addition, the combination of berberine with resveratrol significantly increases the low-density-lipoprotein receptor expression in HepG2 cells to a level about one-fold higher in comparison to individual compound. These results implied that the enhanced effect of the combination of berberine with resveratrol on lipid-lowering may be associated with upregulation of low-density-lipoprotein receptor, and could be an effective therapy for hyperlipidemia in some obese-associated disease, such as type II diabetes and metabolic syndrome.


Author(s):  
Baran Ghezelbash ◽  
Nader Shahrokhi ◽  
Mohammad Khaksari ◽  
Firouz Ghaderi-Pakdel ◽  
Gholamreza Asadikaram

AbstractBackgroundNon-alcoholic fatty liver disease (NAFLD) is the main common cause of chronic liver disease. The aim of this study is to evaluate the effect of Shilajit, a medicine of Ayurveda, on the liver damage caused by NAFLD.Materials and methodsForty male Wistar rats, after being established as fatty liver models by feeding a high-fat diet (HFD, 12 weeks), were divided randomly into five groups as follows: control (standard diet), vehicle (HFD + distilled water), high-dose Shilajit (HFD + 250 mg/kg Shilajit), low-dose Shilajit (HFD + 150 mg/kg Shilajit) and pioglitazone (HFD + 10 mg/kg pioglitazone). The serum levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), triglycerides (TG), total cholesterol (TC), low-density lipoprotein (LDL), glucose and liver glutathione peroxidase (GPx), superoxide dismutase (SOD) activity, malondialdehyde (MDA) levels, liver weight, and histopathological manifestation outcomes were measured after the 2-week intervention.ResultsShilajit treatment significantly reduced the values of AST and ALT, TG, TC, LDL, glucose, liver weight, and steatosis, and instead, increased high-density lipoprotein (HDL) compared with the vehicle group (p < 0.05). Further, Shilajit treatment improved the adverse effects of HFD-induced histopathological changes in the liver as compared with the vehicle group (p < 0.001). MDA level and GPx activity increased but SOD activity decreased in the vehicle group compared with the control group (p < 0.05), while treatment with Shilajit restored the antioxidant/oxidant balance toward a significant increase in the antioxidant system in the Shilajit group (p < 0.05).ConclusionsThese findings suggest that Shilajit improved the histopathological NAFLD changes in the liver and indicated the potential applicability of Shilajit as a potent agent for NAFLD treatment.


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