scholarly journals Agrimonia pilosa Ledeb. Ameliorates Hyperglycemia and Hepatic Steatosis in Ovariectomized Rats Fed a High-Fat Diet

Nutrients ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1631
Author(s):  
Hwan-Hee Jang ◽  
Ji Hyun Bae ◽  
Mi-Ju Kim ◽  
Mi Young Park ◽  
Haeng Ran Kim ◽  
...  
Keyword(s):  
Dietary Intake ◽  
High Fat Diet ◽  
Fatty Acid Synthase ◽  
Coenzyme A ◽  
Density Lipoprotein ◽  
Estrogen Deficiency ◽  
Ovariectomized Rats ◽  
Sprague Dawley ◽  
High Fat ◽  
Hepatic Expression

Estrogen deficiency is associated with obesity, dyslipidemia, and increased insulin resistance in postmenopausal women. An efficient therapeutic agent prevents or improves postmenopausal conditions induced by estrogen deficiency. Here, we investigated the effects of aqueous Agrimonia pilosa Ledeb. extract on glucose and lipid metabolism in ovariectomized rats fed a high-fat diet (HFD). Female Sprague-Dawley rats were sham-operated or ovariectomized, and 3 weeks later were assigned to the following groups: sham-operated + HFD (S); ovariectomized + HFD (OVX); and ovariectomized + HFD with 0.5% A. pilosa aqueous extract (OVX + 0.5A) groups. Ovariectomy significantly increased body weight and dietary intake relative to the S group. However, A. pilosa treatment did not significantly affect weight gain or dietary intake. Blood triacylglycerol, total cholesterol, and low-density lipoprotein cholesterol levels tended to decrease in the A. pilosa-supplemented group. Blood glucose levels were significantly lower in the OVX + 0.5A group than those in the OVX group. Blood adiponectin and insulin concentrations increased significantly after A. pilosa treatment in the ovariectomized group. A. pilosa supplementation tended to decrease liver weights and prevented lipid accumulation. These effects correlated with reduced hepatic expression of lipogenesis-related genes (fatty acid synthase, acetyl-coenzyme A carboxylase alpha, and 3-hydroxy-3-methylglutaryl-coenzyme A reductase). Therefore, A. pilosa may improve metabolic disorders in ovariectomized rats.

scholarly journals Phenolic Compounds and the Anti-Atherogenic Effect of Bee Bread in High-Fat Diet-Induced Obese Rats

Antioxidants ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 33 ◽  
Author(s):  
Zaidatul Akmal Othman ◽  
Wan Syaheedah Wan Ghazali ◽  
Liza Noordin ◽  
Nurul Aiman Mohd. Yusof ◽  
Mahaneem Mohamed
Keyword(s):  
Phenolic Compounds ◽  
High Fat Diet ◽  
Fatty Acid Synthase ◽  
Antioxidant Activities ◽  
Density Lipoprotein ◽  
Atherogenic Index ◽  
Sprague Dawley ◽  
High Fat ◽  
Bee Bread ◽  
Obese Rats

This study was undertaken to determine the phenolic compounds and the anti-atherogenic effect of bee bread in high-fat diet (HFD)-induced obese rats. The presence of phenolic compounds in bee bread was determined by liquid chromatography–mass spectrometry. Thirty-two male Sprague Dawley rats were divided into four groups, (n = 8/group); i.e., Normal (N), HFD (high-fat diet), HFD + BB (high-fat diet and 0.5 g/kg/day bee bread), and HFD + O (high-fat diet and 10 mg/kg/day orlistat) groups. After 6 weeks of the experiment, rats were sacrificed. Five phenolic compounds were identified in bee bread; namely, caffeic acid, ferulic acid, kaempferol, apigenin, and isorhamnetin. Bee bread significantly reduced Lee obesity index and levels of total cholesterol (TC), low-density lipoprotein (LDL), fatty acid synthase (FAS) activity, atherogenic index, oxidised-LDL (oxLDL), and malondialdehyde (MDA), and significantly increased aortic antioxidant activities, such as those of superoxide dismutase (SOD) and glutathione peroxidase (GPx). Adipocyte sizes were found to be smaller in the HFD + BB group compared to the N group, and en face aortas showed an absence of atherosclerotic plaque in rats supplemented with bee bread. These changes might suggest an anti-atherogenic effect of bee bread in HFD-induced obese rats via its antioxidant and hypocholesterolaemic properties.

scholarly journals Neonatal exposure to genistein ameliorates high-fat diet-induced non-alcoholic steatohepatitis in rats

2011 ◽  
Vol 106 (1) ◽  
pp. 105-113 ◽  
Author(s):  
Chengfei Huang ◽  
Xubai Qiao ◽  
Bing Dong
Keyword(s):  
Lipid Metabolism ◽  
High Fat Diet ◽  
Fatty Acid Synthase ◽  
Regulatory Element ◽  
Neonatal Exposure ◽  
Free Access ◽  
Sprague Dawley ◽  
High Fat ◽  
Hepatic Expression ◽  
Alcoholic Steatohepatitis

Non-alcoholic steatohepatitis (NASH) is becoming a prevalent disease in developing countries with no effective therapy. Isoflavones such as genistein have been shown to prevent NASH in a rat model, but the effects of neonatal exposure to genistein on lipid metabolism have been rarely studied. In the present study, three doses of genistein (30, 300 or 1200 μg/rat per d) were injected (subcutaneously) into neonatal male Sprague–Dawley rats at postnatal days 1–5. After weaning, these rats were allowed free access to a high-fat diet for 6 weeks. The results demonstrate that NASH was induced by high fat feeding in the control rats, whereas genistein-treated rats displayed smaller body weight, and lower hepatic inflammation and steatosis. The mid dose of genistein was most effective. Neonatal exposure to genistein also resulted in a lower incidence of apoptotic cells in the liver. Additionally, neonatal genistein-treated rats showed lower hepatic expression of fatty acid synthase and sterol regulatory element-binding protein-1, but higher expression of PPARα, indicative of lower rates of lipid synthesis and higher rates of β-oxidation. These results indicate that neonatal treatment with genistein has a prolonged effect on hepatic lipid metabolism that is maintained post-weaning, offering a potential approach for the prevention of hepatic steatosis and NASH.

scholarly journals Melatonin Improves Fatty Liver Syndrome by Inhibiting the Lipogenesis Pathway in Hamsters with High-Fat Diet-Induced Hyperlipidemia

Nutrients ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 748 ◽  
Author(s):  
Tzu-Hsuan Ou ◽  
Yu-Tang Tung ◽  
Ting-Hsuan Yang ◽  
Yi-Wen Chien
Keyword(s):  
High Fat Diet ◽  
Fatty Acid Synthase ◽  
Plasma Cholesterol ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Lipogenic Enzymes ◽  
High Fat ◽  
Syrian Hamsters ◽  
Hepatic Lipid

The aim of this study was to investigate the effect of melatonin on hepatic lipid metabolism in hamsters with high-fat diet (HFD)-induced dyslipidemia. Male Syrian hamsters were kept on either a chow control (C) or HFD for four weeks. After four weeks, animals fed the HFD were further randomly assigned to four groups: high-fat only (P), melatonin low-dosage (L), medium-dosage (M), and high-dosage (H) groups. The L, M, and H groups, respectively, received 10, 20, and 50 mg/kg/day of a melatonin solution, while the P and C groups received the ethanol vehicle. After eight weeks of the intervention, results showed that a low dose of melatonin significantly reduced HFD-induced hepatic cholesterol and triglycerides; decreased plasma cholesterol, triglycerides, and low-density lipoprotein cholesterol; and increased plasma high-density lipoprotein cholesterol (p < 0.05). In addition, melatonin markedly decreased activities of the hepatic lipogenic enzymes, acetyl-CoA carboxylase (ACC) and fatty acid synthase (FAS) (p < 0.05), and elevated the relative hepatic carnitine palmitoyltransferase-1α expression in hamsters with HFD-induced hyperlipidemia. Consequently, melatonin reduced activities of the hepatic lipogenic enzymes, ACC and FAS. In summary, chronic melatonin administration improved HFD-induced dyslipidemia and hepatic lipid accumulation in Syrian hamsters with HFD-induced dyslipidemia, which might have occurred through inhibiting the lipogenesis pathway.

scholarly journals Protective Effects of Black Raspberry (Rubus occidentalis) Extract against Hypercholesterolemia and Hepatic Inflammation in Rats Fed High-Fat and High-Choline Diets

Nutrients ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2448
Author(s):  
Taehwan Lim ◽  
Juhee Ryu ◽  
Kiuk Lee ◽  
Sun Young Park ◽  
Keum Taek Hwang
Keyword(s):  
High Fat Diet ◽  
Biological Activities ◽  
Density Lipoprotein ◽  
Nuclear Factor Κb ◽  
Protective Effects ◽  
Black Raspberry ◽  
Hepatic Inflammation ◽  
Sprague Dawley ◽  
High Fat ◽  
Cox 2

Choline is converted to trimethylamine by gut microbiota and further oxidized to trimethylamine-N-oxide (TMAO) by hepatic flavin monooxygenases. Positive correlation between TMAO and chronic diseases has been reported. Polyphenols in black raspberry (BR), especially anthocyanins, possess various biological activities. The objective of this study was to determine the effects of BR extract on the level of choline-derived metabolites, serum lipid profile, and inflammation markers in rats fed high-fat and high-choline diets. Forty female Sprague-Dawley (SD) rats were randomly divided into four groups and fed for 8 weeks as follows: CON (AIN-93G diet), HF (high-fat diet), HFC (HF + 1.5% choline water), and HFCB (HFC + 0.6% BR extract). Serum levels of TMAO, total cholesterol, and low-density lipoprotein (LDL)-cholesterol and cecal trimethylamine (TMA) level were significantly higher in the HFC than in the HFCB. BR extract decreased mRNA expression of pro-inflammatory genes including nuclear factor-κB (NF-κB), interleukin (IL)-1β, IL-6, and cyclooxygenase-2 (COX-2), and protein expression of NF-κB and COX-2 in liver tissue. These results suggest that consistent intake of BR extract might alleviate hypercholesterolemia and hepatic inflammation induced by excessive choline with a high-fat diet via lowering elevated levels of cecal TMA and serum TMAO in rats.

Cyclocarya paliurus prevents high fat diet induced hyperlipidemia and obesity in Sprague–Dawley rats

2015 ◽  
Vol 93 (8) ◽  
pp. 677-686 ◽  
Author(s):  
Xiaoming Yao ◽  
Zi Lin ◽  
Cuihua Jiang ◽  
Meng Gao ◽  
Qingqing Wang ◽  
...  
Keyword(s):  
Total Cholesterol ◽  
Body Mass ◽  
High Fat Diet ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Food Utilization ◽  
Sprague Dawley ◽  
High Fat ◽  
Cyclocarya Paliurus ◽  
Sprague Dawley Rats

Cyclocarya paliurus (CP; qing qian liu), which is used as an herbal tea in China, has been confirmed to have therapeutic effects on hyperlipidemia and obesity, and therefore it is widely consumed to prevent metabolic diseases such as hyperlipidemia and diabetes. In this study, we investigated the preventive effects of CP on obesity and hyperlipidemia, as well as the underlying mechanisms involved in intestinal secretion of apolipoprotein (apo) B48. Sprague–Dawley rats were fed a high-fat diet (HFD) and with or without various concentrations of an ethanol extract of CP (CPE; 2, 4, or 8 g·(kg body mass)–1) administered by gavage for 8 weeks. From the results we see that CPE dose-dependently blocked increases in body mass, and decreased food utilization as well as visceral fat mass. Decreased serum levels of total cholesterol, triglycerides, and low density lipoprotein cholesterol, and elevated levels of high density lipoprotein cholesterol, as well as lowered levels of total cholesterol and triglycerides in the liver were also noticed in CPE-treated rats. Magnetic resonance images indicated that the abnormal fat storage induced by the HFD was obviously suppressed by CPE. In addition, ELISA analysis showed reduced fasting serum apoB48 in the CPE treatment groups. Based on the above results, CPE shows a promising preventive effect on obesity and hyperlipidemia, partially through suppressing intestinal apoB48 overproduction.

scholarly journals The Underlying Mechanisms of Curcumin Inhibition of Hyperglycemia and Hyperlipidemia in Rats Fed High-fat Diet or a High-fat Diet Combined with STZ Treatment

2019 ◽  
Author(s):  
Zhen-hong Xia ◽  
Wen-bo Chen ◽  
Li Shi ◽  
Xue Jiang ◽  
Ke Li ◽  
...  
Keyword(s):  
High Fat Diet ◽  
Curcuma Longa ◽  
Food Pellet ◽  
Fasting Blood Glucose ◽  
Density Lipoprotein ◽  
Diet Group ◽  
Lipoprotein Cholesterol ◽  
Control Group ◽  
Sprague Dawley ◽  
High Fat

Curcumin is the main secondary metabolites of Curcuma longa and other Curcuma spp, and has been reported to have some potential in preventing and treating some physiological disorders. This study investigated the effect curcumin in inhibiting high-fat diet and streptozotocin (STZ)-induced hyperglycemia and hyperlipidemia in rats. Twenty-six male Sprague-Dawley (SD) rats (170-190 g) were randomly divided into a standard food pellet diet group (Control group), a high-fat diet and streptozotocin group (HF+STZ group), and a high-fat diet combined with curcumin and STZ group (HF+ Cur +STZ group). Compared with the HF+STZ group, the HF+Cur+STZ group exhibited significantly reduced fasting blood glucose (FBG), total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), alanine aminotransferase (AST) and aspartate transaminase (ALT) levels, and liver coefficients; in the livers of these rats, the expression of malondialdehyde (MDA) and Bax was downregulated, whereas that of superoxide dismutase (SOD) and Bcl-2 was upregulated. Moreover, the liver histology of these rats was improved and resembled that of the control rats. These results suggest that curcumin prevents high-fat diet and STZ-induced hyperglycemia and hyperlipidemia, mainly via anti-oxidant and anti-apoptotic mechanisms in the liver.

scholarly journals The Underlying Mechanisms of Curcumin Inhibition of Hyperglycemia and Hyperlipidemia in Rats Fed a High-Fat Diet Combined With STZ Treatment

Molecules ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 271 ◽  
Author(s):  
Zhen-Hong Xia ◽  
Wen-Bo Chen ◽  
Li Shi ◽  
Xue Jiang ◽  
Ke Li ◽  
...  
Keyword(s):  
High Fat Diet ◽  
Curcuma Longa ◽  
Food Pellet ◽  
Fasting Blood Glucose ◽  
Density Lipoprotein ◽  
Diet Group ◽  
Lipoprotein Cholesterol ◽  
Control Group ◽  
Sprague Dawley ◽  
High Fat

Curcumin is the main secondary metabolite of Curcuma longa and other Curcuma spp, and has been reported to have some potential in preventing and treating some physiological disorders. This study investigated the effect of curcumin in inhibiting high-fat diet and streptozotocin (STZ)-induced hyperglycemia and hyperlipidemia in rats. Twenty-six male Sprague-Dawley (SD) rats (170–190 g) were randomly divided into a standard food pellet diet group (Control group), a high-fat diet and streptozotocin group (HF + STZ group), and a high-fat diet combined with curcumin and STZ group (HF + Cur + STZ group). Compared with the HF + STZ group, the HF + Cur + STZ group exhibited significantly reduced fasting blood glucose (FBG), total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), alanine aminotransferase (AST), and aspartate transaminase (ALT) levels, as well as liver coefficients. In the livers of these rats, the expression of malondialdehyde (MDA) and Bax was downregulated, whereas that of superoxide dismutase (SOD) and Bcl-2 was upregulated. Moreover, the liver histology of these rats was improved and resembled that of the control rats. These results suggest that curcumin prevents high-fat diet and STZ-induced hyperglycemia and hyperlipidemia, mainly via anti-oxidant and anti-apoptotic mechanisms in the liver.

scholarly journals Antiobesity Effect ofCodonopsis lanceolatain High-Calorie/High-Fat-Diet-Induced Obese Rats

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Hye-Kyung Choi ◽  
Eun-Kyung Won ◽  
Young Pyo Jang ◽  
Se-Young Choung
Keyword(s):  
Lipid Accumulation ◽  
High Fat Diet ◽  
Density Lipoprotein ◽  
Normal Diet ◽  
The Body ◽  
Male Rats ◽  
Sprague Dawley ◽  
High Fat ◽  
Codonopsis Lanceolata ◽  
High Calorie

The antiobesity effects ofCodonopsis lanceolata(CL) were evaluated in a high-calorie/high-fat-diet (HFD-) induced obesity rat model and 3T3-L1 cells. The Sprague-Dawley male rats were fed a normal diet (ND) or a HFD for a period of 12 weeks. The rats were subdivided into groups: ND, ND + wildCodonopsis lanceolata(wCL) (900 mg/kg/day, p.o.), ND + cultivatedCodonopsis lanceolata(cCL) (900 mg/kg/day, p.o.), HFD, HFD + wCL (100, 300, or 900 mg/kg/day, p.o.), HFD + cCL (100, 300, or 900 mg/kg/day, p.o.), and HFD + sibutramine. The body weight gains of the administered HFD + CL (wCL or CCL) were lower than those of the rats fed with only the HFD group. Moreover, the weight of adipose pads and the serum levels of triglycerides, total cholesterol, and low density lipoprotein cholesterol in the group administered HDL + CL were significantly lower than in the HFD group. The inhibitory effect of lipid accumulation in 3T3-L1 cells was measured by Oil Red O staining and reverse transcription-polymerase chain reaction (RT-PCR). Treatment of 3T3-L1 cells with wCL inhibited lipid accumulation and expression of C/EBPαand PPARγ. These results suggest that CL has a great potential as a functional food with anti-obesity effects and as a therapeutic alternative in the treatment of obesity.

scholarly journals Dietary Betaine Addition Promotes Hepatic Cholesterol Synthesis, Bile Acid Conversion, and Export in Rats

Nutrients ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1399
Author(s):  
Sisi Li ◽  
Shuyi Xu ◽  
Yang Zhao ◽  
Haichao Wang ◽  
Jie Feng
Keyword(s):  
Bile Acid ◽  
High Fat Diet ◽  
Cholesterol Synthesis ◽  
Cholesterol Metabolism ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Basal Diet ◽  
Hepatic Cholesterol ◽  
Sprague Dawley ◽  
High Fat

It is widely reported how betaine addition regulates lipid metabolism but how betaine affects cholesterol metabolism is still unknown. This study aimed to investigate the role of betaine in hepatic cholesterol metabolism of Sprague-Dawley rats. Rats were randomly allocated to four groups and fed with a basal diet or a high-fat diet with or without 1% betaine. The experiment lasted 28 days. The results showed that dietary betaine supplementation reduced the feed intake of rats with final weight unchanged. Serum low-density-lipoprotein cholesterol was increased with the high-fat diet. The high-fat diet promoted cholesterol synthesis and excretion by enhancing the HMG-CoA reductase and ABCG5/G8, respectively, which lead to a balance of hepatic cholesterol. Rats in betaine groups showed a higher level of hepatic total cholesterol. Dietary betaine addition enhanced cholesterol synthesis as well as conversion of bile acid from cholesterol by increasing the levels of HMGCR and CYP7A1. The high-fat diet decreased the level of bile salt export pump, while dietary betaine addition inhibited this decrease and promoted bile acid efflux and increased total bile acid levels in the intestine. In summary, dietary betaine addition promoted hepatic cholesterol metabolism, including cholesterol synthesis, conversion of bile acids, and bile acid export.

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