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lipid diet

Na Xu, Jun Chu, Min Wang, Ling Chen, Liang Zhang, Zhongwen Xie, Jinsong Zhang, Chi-Tang Ho, Daxiang Li, Xiaochun Wan
Large yellow tea is a traditional beverage in China with unique toasty flavor. Preliminary study using 3T3-L1 cells indicted that large yellow tea, possessed more potent lipid-lowering efficacy than green, black, dark and white teas. In the present study we further investigated its influence on metabolic syndrome in high-fat diet (HFD) mouse model with an emphasis on dose response. Thirty-two C57BL/6 male mice were randomly divided into 4 groups: low-fat diet (LFD), HFD, HFD+2.5% large yellow tea hot-water extract (YT, equivalent to 10 cups of tea daily for humans), HFD+0...
March 19, 2018: Journal of Agricultural and Food Chemistry
Ritu S Sharma, David J Harrison, Dorothy Kisielewski, Diane M Cassidy, Alison D McNeilly, Jennifer R Gallagher, Shaun V Walsh, Tadashi Honda, Rory J McCrimmon, Albena T Dinkova-Kostova, Michael L J Ashford, John F Dillon, John D Hayes
Background & Aims: Nonalcoholic steatohepatitis (NASH) is associated with oxidative stress. We surmised that pharmacologic activation of NF-E2 p45-related factor 2 (Nrf2) using the acetylenic tricyclic bis(cyano enone) TBE-31 would suppress NASH because Nrf2 is a transcriptional master regulator of intracellular redox homeostasis. Methods: Nrf2 +/+ and Nrf2 -/- C57BL/6 mice were fed a high-fat plus fructose (HFFr) or regular chow diet for 16 weeks or 30 weeks, and then treated for the final 6 weeks, while still being fed the same HFFr or regular chow diets, with either TBE-31 or dimethyl sulfoxide vehicle control...
March 2018: Cellular and Molecular Gastroenterology and Hepatology
Yajing Huo, Xuqing Wu, Jing Ding, Yang Geng, Weiwei Qiao, Anyan Ge, Cen Guo, Jianing Lv, Haifeng Bao, Wei Fan
Hyperhomocysteinemia, a risk factor for vascular disease, is associated with metabolic syndrome. Our study was aimed at exploring the effect of long-term hyperhomocysteinemia with metabolic disturbances on vascular remodeling. We also studied oxidative stress and expression of PPAR γ in the coronary arteriole as a possible mechanism underlying vascular remodeling. Rats were treated with standard rodent chow (Control) or diet enriched in methionine (Met) for 48 weeks. Plasma homocysteine, blood glucose, serum lipids, malondialdehyde (MDA), superoxide dismutase (SOD), and nitric oxide (NO) levels were measured...
2018: PPAR Research
Dan Wei, Ningning Zheng, Lanyan Zheng, Leting Wang, Liang Song, Luning Sun
Background: Metabolic syndrome (MS) is a global epidemic that has great socioeconomic and public health implications. This study reports observed effects of the Shexiang Baoxin Pill (SBP) in a rat model of MS and explores its underlying mechanisms of action. Methods: A diet-induced rat model of MS was established according to accepted methods, and the rats were randomly divided into two groups: a control group (0.9% NaCl, 100 mg/kg• d) and a SBP-treated group (SBP, 100 mg/kg• d). Systolic blood pressures, fasting blood glucose (FBS) levels, triglyceride (TG) levels, high-density lipoprotein cholesterol (HDL-C) levels, body weights, and abdominal perimeters were dynamically monitored and analyzed...
2018: Frontiers in Pharmacology
Karen Nørgaard Nielsen, Julia Peics, Tao Ma, Iuliia Karavaeva, Morten Dall, Sabina Chubanava, Astrid L Basse, Oksana Dmytriyeva, Jonas T Treebak, Zachary Gerhart-Hines
OBJECTIVE: The ability of adipose tissue to expand and contract in response to fluctuations in nutrient availability is essential for the maintenance of whole-body metabolic homeostasis. Given the nutrient scarcity that mammals faced for millions of years, programs involved in this adipose plasticity were likely evolved to be highly efficient in promoting lipid storage. Ironically, this previously advantageous feature may now represent a metabolic liability given the caloric excess of modern society...
March 7, 2018: Molecular Metabolism
Dayoung Kang, Zhipeng Li, Geun Eog Ji
Ginseng and probiotics have anti-obese effects in mice fed a high-fat diet(HFD). Absorption of ginsenoside and colonization of probiotics occur in the intestine. In this study, the mixture of fermented ginseng and two probiotics, Bifidobacterium longum BORI and Lactobacillus paracasei CH88, was administered to HFD fed mice for 9 weeks. The mixture significantly suppressed weight gain ( p < 0.05, n = 8) and lipid deposition in the liver and adipose tissues as well as increased the mice's food intake. The adipocyte size of the adipose tissue was significantly decreased in the mixture group, especially when 0...
March 16, 2018: Journal of Microbiology and Biotechnology
Hongliang Zhang, Xiaoqin Zou, Qiuyan Huang, Xiaobin Zhong, Zhenguang Huang
BACKGROUND/AIMS: The herbal medicine Kudingcha has a bitter taste and low bioavailability for lipid reduction. To improve the bioavailability and ameliorate the compliance, we prepared Kudingcha nanoparticles and investigated their effect in hyperlipidaemic rats. In addition, the safety and lipid-lowering mechanism of the Kudingcha nanoparticles were examined. METHODS: Kudingcha nanoparticles were prepared by ionotropic gelation and spray-drying. Seventy rats were randomly assigned into eight groups: a normal fat diet group (NF), a high-fat group (HF), a spontaneous recovery group (SR), a Kudingcha group (KDC), a blank nanoparticle group (B-N), and a Kudingcha nanoparticle groups (low, medium and high doses)...
March 10, 2018: Cellular Physiology and Biochemistry
Dongxia Fu, Haibin Cui, Yunna Zhang
BACKGROUND/AIMS: Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease. This study aims to investigate whether chloride channel 2 (ClC-2) is involved in high fat diet (HFD)-induced NAFLD and possible molecular mechanisms. METHODS: ClC-2 expression was liver-specifically downregulated using adeno-associated virus in C57BL/6 mice treated with a chow diet or HFD for 12 weeks. Peripheral blood and liver tissues were collected for biochemical and pathological estimation respectively...
March 10, 2018: Cellular Physiology and Biochemistry
Alba Bosquet, Josefa Girona, Sandra Guaita-Esteruelas, Mercedes Heras, Paula Saavedra-García, Neus Martínez-Micaelo, Lluís Masana, Ricardo Rodríguez-Calvo
AIMS: Fatty acid binding protein 4 (FABP4) inhibitors have been proposed as potential therapeutic approaches against insulin resistance-related inflammation and type 2 diabetes mellitus. However, the underlying molecular mechanisms by which these molecules drive these effects in skeletal muscle remain unknown. Here, we assessed whether the FABP4 inhibitor BMS309403 prevented lipid-induced endoplasmic reticulum (ER) stress-associated inflammation in skeletal muscle. MATERIALS AND METHODS: The BMS309403 treatment was assessed both in the skeletal muscle of high-fat diet (HFD)-fed mice and in palmitate-stimulated C2C12 myotubes...
March 14, 2018: Biochimica et Biophysica Acta
David N Bolam, Bert van den Berg
The lower human gastro-intestinal tract is inhabited by an extremely high density of micro-organisms, collectively termed the colonic microbiota. Just two bacterial phyla dominate this habitat, the Gram-positive Firmicutes and the Gram-negative Bacteroidetes. The colon is further characterised by a relative lack of small, easily accessible nutrients such as simple sugars, lipids and amino acids. Instead, a plethora of diet-derived and host polysaccharides constitute the main source of nutrients. Due to their size and complexity, the uptake of such glycans for metabolic utilisation is an energy-dependent process, which in Bacteroides spp...
March 15, 2018: Current Opinion in Structural Biology
Yanmao Wang, Yu Zhu, Shengdi Lu, Chengfang Hu, Wanrun Zhong, Yimin Chai
Osteoporosis is linked to reduced bone mineral density (BMD) as a major risk factor for fragility fractures. Recent studies indicated an association between BMD and abnormally elevated lipid levels in blood as common indicators for hyperlipidemia. In this study, we assessed the protective effect of paeoniflorin, a phytochemical compound with multiple pharmacological activities, against hyperlipidemia-induced osteoporosis in rats fed a high-carbohydrate, high-fat diet (HCHF). The special diet-fed rats were subjected to an 8-week treatment with either paeoniflorin (20 mg/kg, daily) or vehicle...
March 16, 2018: Biochemical and Biophysical Research Communications
Hans Demmelmair, Berthold Koletzko
Fat is the main energy providing component in human milk and comprising a complex mixture of different lipid species, with quantitative dominance of triglycerides. After elucidating the fatty acid composition, more recent research has looked at influencing factors and the importance of specific lipids. Here we review quantitative aspects of maternal metabolism which contribute to the milk fatty acid composition, especially considering essential fatty acids and their long chain polyunsaturated derivatives. In this context studies with stable isotopes have indicated the importance of maternal body pools for mediating the effects of diet on milk composition...
January 2018: Best Practice & Research. Clinical Endocrinology & Metabolism
A P B Fruet, F Trombetta, F S Stefanello, C S Speroni, J Z Donadel, A N M De Souza, A Rosado Júnior, C J Tonetto, R Wagner, A De Mello, J L Nörnberg
Pasture-finished beef is becoming more popular among consumers due to concerns related to fatty acid content and sustainable practices. The effects of finishing crossbred steers on legume-grass pasture comprised of oats, ryegrass, and clover (PAST), legume-grass pasture plus whole corn grain (WCG) supplementation (SUPP), and only with WCG (GRAIN) on fatty acids profile, volatile compounds, sensory, and texture attributes were studied. Pasture diets (PAST and SUPP) led to lower n-6/n-3 ratio (P < 0.001), and highest deposition of C18:2 cis-9 trans-11 (P < 0...
March 10, 2018: Meat Science
Yao Dai, Xiaoqin Wu, Dongsheng Dai, Jun Li, Jawahar L Mehta
OBJECTIVE: Several miR/s that regulate gene/s relevant in atherogenesis are being described. We identified a miR (miR-98) that targets LOX-1, a receptor for ox-LDL, and speculated that it might be relevant in atherogenesis. APPROACH AND RESULTS: MicroRNA-98 was predicted by bioinformatics tools. The effects of miR-98 (by use of mimics and inhibitors) on LOX-1 expression and foam cell formation in mouse peritoneal macrophages were assessed. ApoE-/- mice fed by high fat diet were administered with mmu-agomiR-98 and mmu-antagomiR-98, and expression of LOX-1 and foam cell formation in aorta were quantified...
March 8, 2018: Redox Biology
S Chevolleau, M-H Noguer-Meireles, I Jouanin, N Naud, F Pierre, F Gueraud, L Debrauwer
Red or processed meat rich diets have been shown to be associated with an elevated risk of colorectal cancer (CRC). One major hypothesis involves dietary heme iron which induces lipid peroxidation. The quantification of the resulting reactive aldehydes (e.g. HNE and HHE) in the colon lumen is therefore of great concern since these compounds are known for their cytotoxic and genotoxic properties. UHPLC-ESI-MS/MS method has been developed and validated for HNE and HHE quantification in rat faeces. Samples were derivatised using a brominated reagent (BBHA) in presence of pre-synthesized deuterated internal standards (HNE-d11/HHE-d5), extracted by solid phase extraction, and then analysed by LC-positive ESI-MS/MS (MRM) on a TSQ Vantage mass spectrometer...
March 2, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Tina H T Chiu, Wen-Harn Pan, Ming-Nan Lin, Chin-Lon Lin
BACKGROUND/OBJECTIVES: Vegetarian diets are inversely associated with diabetes in Westerners but their impact on Asians-whose pathophysiology differ from Westerners-is unknown. We aim to investigate the association between a vegetarian diet, change in dietary patterns and diabetes risk in a Taiwanese Buddhist population. METHODS: We prospectively followed 2918 non-smoking, non-alcohol drinking Buddhists free of diabetes, cancer, and cardiovascular diseases at baseline, for a median of 5 years, with 183 incident diabetes cases confirmed...
March 9, 2018: Nutrition & Diabetes
Hana Kimura, Kohei Arasaki, Yuki Ohsaki, Toyoshi Fujimoto, Takayuki Ohtomo, Junji Yamada, Mitsuo Tagaya
Lipid droplets (LDs) are ubiquitous organelles that contain neutral lipids and are surrounded by a phospholipid monolayer. How proteins specifically localize to the phospholipid monolayer of the LD surface has been a matter of extensive investigations. In the present study we show that syntaxin 17 (Stx17), a SNARE protein whose expression in the liver is regulated by diet, participates in LD biogenesis by regulating the distribution of acyl-CoA synthetase 3 (ACSL3), a key enzyme for LD biogenesis that redistributes from the endoplasmic reticulum to LDs during LD formation...
March 16, 2018: Journal of Lipid Research
Yan-Chuan Li, Chun-Long Li, Rui Li, Yang Chen, Meng Zhang, Pan-Pan Guo, Dan Shi, Xiao-Ning Ji, Ren-Nan Feng, Chang-Hao Sun
BACKGROUND: It has been established in RCTs that high dose of phytosterols can significantly reduce blood cholesterol. However, it was uncertain whether low dose of phytosterols from daily diets was effective. In this study, we evaluated the associations between dietary phytosterols and body mass index (BMI), waist circumference (WC), blood glucose, serum lipid profiles and prevalence of overweight/obesity and abdominal obesity in healthy subjects. METHODS: Four hundred nine men and 503 women aged 18-60 years were included in this study...
March 16, 2018: Lipids in Health and Disease
Bindi Borg, Seema Mihrshahi, Mark Griffin, Daream Sok, Chamnan Chhoun, Arnaud Laillou, Jacques Berger, Frank T Wieringa
BACKGROUND: Existing ready-to-use supplementary and therapeutic foods (RUSFs and RUTFs) have had limited acceptance and effectiveness in Cambodia. This has hampered the treatment and prevention of child malnutrition. An innovative, locally produced, multiple micronutrient fortified lipid-based nutrient supplement (LNS) has been developed for use as an RUSF. Unlike most RUSFs, which contain milk, this product contains fish as the animal protein. Few RUSFs have been formulated using non-milk animal-source foods and they have not been widely tested...
March 16, 2018: Nutrition Journal
Kazushi Yamamoto, Yui Iwagaki, Kouichi Watanabe, Tomonori Nochi, Hisashi Aso, Tsuyoshi Tsuduki
OBJECTIVES: We examined a moderate-fat (MF) diet that is enriched with fish oil (FO) and assessed whether lipid absorption was inhibited in senescence-accelerated prone mice (SAM-P8). METHODS: All mice (N = 70) were fed a normal diet that contained 4 g soybean oil/100 g of diet for 6 mo and then divided the mice into four groups (n = 10 or 20/group). Mice in the baseline group were euthanized at 6 mo old, those in the control group continued on a normal diet until 15 mo of age, those in the MF diet group switched to an MF diet (8 g soybean oil/100 g of diet) until 15 mo of age, and those in the MF + FO group switched to an MF diet that was enriched with FO (6...
December 2, 2017: Nutrition
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