scholarly journals Protective effects of a unique combination of nutritionally active ingredients on risk factors and gene expression associated with atherosclerosis in C57BL/6J mice fed a high fat diet

2021 ◽  
Author(s):  
Joe W. E. Moss ◽  
Jessica O Williams ◽  
Wijdan Al-Ahmadi ◽  
Victoria O'Morain ◽  
Yee-Hung Chan ◽  
...  

Atherosclerosis, an inflammatory disorder of the vasculature and the underlying cause of cardiovascular disease, is responsible for one in three global deaths. Consumption of active food ingredients such as omega-3...

Nutrients ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 2037 ◽  
Author(s):  
Petra Kroupova ◽  
Evert M. van Schothorst ◽  
Jaap Keijer ◽  
Annelies Bunschoten ◽  
Martin Vodicka ◽  
...  

Antisteatotic effects of omega-3 fatty acids (Omega-3) in obese rodents seem to vary depending on the lipid form of their administration. Whether these effects could reflect changes in intestinal metabolism is unknown. Here, we compare Omega-3-containing phospholipids (krill oil; ω3PL-H) and triacylglycerols (ω3TG) in terms of their effects on morphology, gene expression and fatty acid (FA) oxidation in the small intestine. Male C57BL/6N mice were fed for 8 weeks with a high-fat diet (HFD) alone or supplemented with 30 mg/g diet of ω3TG or ω3PL-H. Omega-3 index, reflecting the bioavailability of Omega-3, reached 12.5% and 7.5% in the ω3PL-H and ω3TG groups, respectively. Compared to HFD mice, ω3PL-H but not ω3TG animals had lower body weight gain (−40%), mesenteric adipose tissue (−43%), and hepatic lipid content (−64%). The highest number and expression level of regulated intestinal genes was observed in ω3PL-H mice. The expression of FA ω-oxidation genes was enhanced in both Omega-3-supplemented groups, but gene expression within the FA β-oxidation pathway and functional palmitate oxidation in the proximal ileum was significantly increased only in ω3PL-H mice. In conclusion, enhanced intestinal FA oxidation could contribute to the strong antisteatotic effects of Omega-3 when administered as phospholipids to dietary obese mice.


2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 1525-1525
Author(s):  
Kyung-Ah Kim ◽  
Shalom Sara Thomas ◽  
Youn-Soo Cha

Abstract Objectives The incidence of inflammatory bowel disease is increasing in newly developing countries, mainly awing to the westernization of the society. Consumption of high-fat diet has known to aggravate colitis. Omega-3 fatty acids are known to have several health benefits including anti-inflammatory effects and some studies have reported the effect of fish oil in experimental colitis. Perilla oil is obtained from the seeds of Perilla frutescens and is known to exert protective effects against obesity, inflammation and hepatic steatosis. We have previously shown that perilla oil has a similar effect like fish oil in high-fat diet induced colon inflammation. In this study, we wanted to investigate the effect fish oil and perilla oil on high-fat-fed, dextran sodium sulfate (DSS)-induced colitis in mice. Methods Six weeks old mice were divided into 4 groups; normal diet without DSS administration (ND), and three high-fat diet with DSS groups; control (HD + DSS), with fish oil supplementation (HDFO+DSS), with perilla oil supplementation (HDPO+DSS). The mice were fed with high-fat diet for 5 weeks prior to DSS administration by water for one week. The mice were sacrificed on the 7th day of DSS administration. Colon length and macroscopic score were measured. The levels of pro-inflammatory cytokines in serum were measured. The stools of the mice were collected for microbial analysis. Results The levels of pro-inflammatory cytokines such as TNF-α, IL-6 and IL-1β were significantly reduced in FO and PO supplemented groups compared to HD + DSS. The colon length was reduced due to DSS administration compared to ND, and supplementation with FO and PO improved colon length and macroscopic score. Number of Enterobacteriaceae was higher in all DSS administered groups. However, FO and PO treated groups had significantly reduced Enterobacteriaceae. Conclusions The results of this study showed that fish oil and perilla oil exert protective effect against high-fat diet fed DSS-induced colitis. Both fish oil and perilla oil action on colon protection is similar. The experiments to confirm the mechanism of action which includes mRNA and protein analysis are ongoing. Funding Sources This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Education).


2020 ◽  
Vol 499 ◽  
pp. 110615 ◽  
Author(s):  
Natalie M. Hohos ◽  
Emily M. Elliott ◽  
Kirstin J. Cho ◽  
Ivy S. Lin ◽  
Michael C. Rudolph ◽  
...  

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Mercè Hereu ◽  
Sara Ramos-Romero ◽  
Cristina Busquets ◽  
Lidia Atienza ◽  
Susana Amézqueta ◽  
...  

Abstract Food contains bioactive compounds that may prevent changes in gut microbiota associated with Westernized diets. The aim of this study is to explore the possible additive effects of d-fagomine and ω-3 PUFAs (EPA/DHA 1:1) on gut microbiota and related risk factors during early stages in the development of fat-induced pre-diabetes. Male Sprague Dawley (SD) rats were fed a standard diet, or a high-fat (HF) diet supplemented with d-fagomine, EPA/DHA 1:1, a combination of both, or neither, for 24 weeks. The variables measured were fasting glucose and glucose tolerance, plasma insulin, liver inflammation, fecal/cecal gut bacterial subgroups and short-chain fatty acids (SCFAs). The animals supplemented with d-fagomine alone and in combination with ω-3 PUFAs accumulated less fat than those in the non-supplemented HF group and those given only ω-3 PUFAs. The combined supplements attenuated the high-fat-induced incipient insulin resistance (IR), and liver inflammation, while increasing the cecal content, the Bacteroidetes:Firmicutes ratio and the populations of Bifidobacteriales. The functional effects of the combination of d-fagomine and EPA/DHA 1:1 against gut dysbiosis and the very early metabolic alterations induced by a high-fat diet are mainly those of d-fagomine complemented by the anti-inflammatory action of ω-3 PUFAs.


2010 ◽  
Vol 213 (2) ◽  
pp. 422-428 ◽  
Author(s):  
Lucilla Attorri ◽  
Antonella Di Biase ◽  
Rita Di Benedetto ◽  
Patrizia Rigato ◽  
Antonio Di Virgilio ◽  
...  

Nutrients ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3652
Author(s):  
Suresh Khadke ◽  
Pallavi Mandave ◽  
Aniket Kuvalekar ◽  
Vijaya Pandit ◽  
Manjiri Karandikar ◽  
...  

Type 2 diabetes mellitus, which an outcome of impaired insulin action and its secretion, is concomitantly associated with lipid abnormalities. The study was designed to evaluate the combinational effect of omega-3 fatty acids (flax and fish oil) and glibenclamide on abnormal lipid profiles, increased blood glucose, and impaired liver and kidney functions in a high fat diet with low streptozotocin (STZ)-induced diabetic rats, including its probable mechanism of action. The male Wistar rats (n = 48) were distributed into eight groups. All animal groups except the healthy received a high fat diet (HFD) for 90 days. Further, diabetes was developed by low dose STZ (35 mg/kg). Diabetic animals received, omega-3 fatty acids (500 mg/kg), along with glibenclamide (0.25 mg/kg). Both flax and fish oil intervention decreased (p ≤ 0.001) serum triglycerides and very low density lipoprotein and elevated (p ≤ 0.001) high density lipoprotein levels in diabetic rats. Total cholesterol and low-density lipoprotein level was decreased (p ≤ 0.001) in fish oil-treated rats. However, it remained unaffected in the flax oil treatment group. Both flax and fish oil intervention downregulate the expression of fatty acid metabolism genes, transcription factors (sterol regulatory element-binding proteins-1c and nuclear factor-κβ), and their regulatory genes i.e., acetyl-coA carboxylase alpha, fatty acid synthase, and tumor necrosis factors-α. The peroxisome proliferator-activated receptor gamma gene expression was upregulated (p ≤ 0.001) in the fish oil treatment group. Whereas, carnitine palmitoyltransferase 1 and fatty acid binding protein gene expression were upregulated (p ≤ 0.001) in both flax and fish oil intervention group.


Background and Aims: Non-alcoholic fatty liver disease (NAFLD) is associated with such symptoms as steatosis, fibrosis, and liver cirrhosis. Kelussia has attracted assiduous attention due to its protective effects on the liver. The PNPLA3 gene is mainly expressed in the liver and plays a major role in the degradation rate of hepatic triglycerides. Therefore, the present study aimed to assess the effect of Kelussia extract on PNPLA3 gene expression in rats with fatty liver and healthy rats. Materials and Methods: This experimental study was conducted on 24 male Wistar rats in the control group (no treatment), obese group (which received a high-fat diet), treatment group 1 (which received a high-fat diet with Kelussia extract 400 mg/kg) and treatment group 2 (a high-fat diet with Kelussia extract 800 mg/kg) for six weeks. Blood samples were taken from rats and the factors of (LDL, HDL, Cholesterol, Triglyceride, and fasting sugar) were measured. After sampling the rat liver, the effect of Kelussia on PNPLA3 gene expression was investigated using the Real-time reverse transcription-polymerase chain reaction (RT-PCR) technique and analyzed in SPSS software (version 22). Results: Based on the results, Kelussia extract at a dose of 800 mg/kg resulted in a more dramatic decrease in PNPLA3 gene expression in rats with fatty liver, compared to a dose of 400 mg /kg, and this reduction was statistically significant, compared to the fatty liver group (P<0.05). The results of biochemical tests confirmed liver improvement in the rats treated with Kelussia extract at a dose of 800 mg/kg. Conclusion: It can be said that Kelussia had a beneficial effect on the reduction of blood lipids; moreover, it reduces the accumulation of triglycerides in the liver and improves the tissue structure of the liver by reducing the expression of PNPLA3 gene; therefore, with more studies, it can be considered a supplement to reduce blood lipids.


2013 ◽  
Vol 304 (12) ◽  
pp. E1391-E1403 ◽  
Author(s):  
Ian R. Lanza ◽  
Agnieszka Blachnio-Zabielska ◽  
Matthew L. Johnson ◽  
Jill M. Schimke ◽  
Daniel R. Jakaitis ◽  
...  

Omega-3 polyunsaturated fatty acids (n-3 PUFAs) enhance insulin sensitivity and glucose homeostasis in rodent models of insulin resistance. These beneficial effects have been linked with anti-inflammatory properties, but emerging data suggest that the mechanisms may also converge on mitochondria. We evaluated the influence of dietary n-3 PUFAs on mitochondrial physiology and muscle lipid metabolites in the context of high-fat diet (HFD) in mice. Mice were fed control diets (10% fat), HFD (60% fat), or HFD with fish oil (HFD+FO, 3.4% kcal from n-3 PUFAs) for 10 wk. Body mass and fat mass increased similarly in HFD and HFD+FO, but n-3 PUFAs attenuated the glucose intolerance that developed with HFD and increased expression of genes that regulate glucose metabolism in skeletal muscle. Despite similar muscle triglyceride levels in HFD and HFD+FO, long-chain acyl-CoAs and ceramides were lower in the presence of fish oil. Mitochondrial abundance and oxidative capacity were similarly increased in HFD and HFD+FO compared with controls. Hydrogen peroxide production was similarly elevated in HFD and HFD+FO in isolated mitochondria but not in permeabilized muscle fibers, likely due to increased activity and expression of catalase. These results support a hypothesis that n-3 PUFAs protect glucose tolerance, in part by preventing the accumulation of bioactive lipid mediators that interfere with insulin action. Furthermore, the respiratory function of skeletal muscle mitochondria does not appear to be a major factor in sphingolipid accumulation, glucose intolerance, or the protective effects of n-3 PUFAs.


2018 ◽  
Vol 16 (1) ◽  
pp. 1 ◽  
Author(s):  
AZRUL HILDAN SAFRIZAL

<p>The pattern and lifestyle of today's society with the presence of an interner facility makes people spend more time sitting out than on exercise and increased consumption of high-fat foods may increase the risk of cardiovascular disease. An effective therapy is needed in preventing the occurrence of cardiovascular disease. Hyperbaric oxygen now starts to develop for the treatment of several diseases, which in turn can increase the gene forming antioxidant enzymes and ROS. To determine effect of hyperbaric oxygen therapy on total cholesterol levels of wistar white rats (Rattusnovergicus) induced bye high fat. The study was carried out in an expeative post test only group control of three groups. One group is given standard feed. All groups induced high-fat diet and standard feed. Of the two groups induced, one group was given hyperbaric oxygen therapy with a dose of 3 x 30 minutes for six days on day 7 at a blood test to determine total cholesterol levels<strong>. </strong>One way Anova parametric statistic test showed that p = 0.007 &lt; α proved hypothesis that hyperbaric oxygen therapy giving effect to total cholesterol level of white mice of jantangalurist rings induced by high fat diet. Total cholesterol was significantly different between K (-) and K (+) and between K (-) and P. It was found that hyperbaric oxygen therapy had an effect on total cholesterol level dose of 3x30 minutes for six days.</p>


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