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https://www.readbyqxmd.com/read/29166659/sex-specific-influences-of-mtdna-mitotype-and-diet-on-mitochondrial-functions-and-physiological-traits-in-drosophila-melanogaster
#1
Wen C Aw, Michael R Garvin, Richard G Melvin, J William O Ballard
Here we determine the sex-specific influence of mtDNA type (mitotype) and diet on mitochondrial functions and physiology in two Drosophila melanogaster lines. In many species, males and females differ in aspects of their energy production. These sex-specific influences may be caused by differences in evolutionary history and physiological functions. We predicted the influence of mtDNA mutations should be stronger in males than females as a result of the organelle's maternal mode of inheritance in the majority of metazoans...
2017: PloS One
https://www.readbyqxmd.com/read/29166645/angiotensin-ii-infusion-does-not-cause-abdominal-aortic-aneurysms-in-apolipoprotein-e-deficient-rats
#2
Evan H Phillips, Mandy S Chang, Sydney Gorman, Hamna J Qureshi, Karin F K Ejendal, Tamara L Kinzer-Ursem, A Nicole Blaize, Craig J Goergen
The apolipoprotein E-deficient (apoE-/-) mouse model has advanced our understanding of cardiovascular disease mechanisms and experimental therapeutics. This spontaneous model recapitulates aspects of human atherosclerosis, and allows for the development of dissecting abdominal aortic aneurysms (AAAs) when combined with angiotensin II. We characterized apoE-/- rats and hypothesized that, similar to mice, they would develop dissecting AAAs. We created rats with a 16-bp deletion of the apoE gene using transcription activator-like effector nucleases...
November 23, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/29166534/effect-of-syzygium-cumini-leaves-on-laying-hens-performance-and-egg-quality
#3
Ednardo R Freitas, Danilo R Fernandes, Davyd H Souza, Francisco D T Dantas, Rebeca C Santos, Gilson B Oliveira, Carlos Eduardo B Cruz, Nádia M Braz, Lorena F Câmara, Germano A J Nascimento, Pedro H Watanabe
The aim of this study was to evaluate the effect of Syzygium cumini leaves (SCL) in laying hens diets on productive performance, egg quality and lipid oxidation of yolk. A total of 108 Hysex White laying hens were distributed in a completely randomized design with three treatments and six replicates of six birds each. The treatments consisted of SCL inclusion at dietary levels of 0, 5 and 10 g/kg. There was no significant effect of SCL inclusion on feed intake, laying percentage, weight and egg mass, feed conversion ratio, Haugh units, specific gravity, percentage of yolk, albumen and egg shells and shell thickness...
2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29166372/placental-lipid-processing-in-response-to-a-maternal-high-fat-diet-and-diabetes-in-rats
#4
Eli J Louwagie, Tricia D Larsen, Angela L Wachal, Michelle L Baack
BACKGROUND: Diabetes and obesity during pregnancy impact the health of both mothers and developing babies. Prevention focuses on glycemic control, but increasing evidence implicates a role for lipids. Using a rat model, we showed that a maternal high-fat (HF) diet, increased perinatal morbidity and mortality, but lipid processing across the maternal-placental-fetal triad remained unstudied. We hypothesized that HF diet would disrupt placental lipid processing to exaggerate fuel-mediated consequences of diabetic pregnancy...
November 22, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29166161/will-invertebrates-require-increasingly-carbon-rich-food-in-a-warming-world
#5
Thomas R Anderson, Dag O Hessen, Maarten Boersma, Jotaro Urabe, Daniel J Mayor
Elevated temperature causes metabolism and respiration to increase in poikilothermic organisms. We hypothesized that invertebrate consumers will therefore require increasingly carbon-rich diets in a warming environment because the increased energetic demands are primarily met using compounds rich in carbon, that is, carbohydrates and lipids. Here, we test this hypothesis using a new stoichiometric model that has carbon (C) and nitrogen (N) as currencies. Model predictions did not support the hypothesis, indicating instead that the nutritional requirements of invertebrates, at least in terms of food quality expressed as C∶N ratio, may change little, if at all, at elevated temperature...
December 2017: American Naturalist
https://www.readbyqxmd.com/read/29165477/barley-beta-glucans-varying-in-molecular-mass-and-oligomer-structure-affect-cecal-fermentation-and-microbial-composition-but-not-blood-lipid-profiles-in-hypercholesterolemic-rats
#6
Mette S Mikkelsen, Morten G Jensen, Tina S Nielsen
There is an unmet need for appealing and functional barley β-glucan (BG) food matrices that can provide sufficient and active BG doses to consumers. We investigated how molecular mass and oligomer structure important for BG food and health properties affected plasma lipids and gut parameters in hypercholesterolemic rats. Following 3 weeks on a high-cholestrol diet, rats were given a high-cholesterol diet supplemented with either cellulose (control) or purified barley BGs with low (100 or 150 kDa; glucagel or lowBG, respectively) or medium (530 kDa; mediumBG) molecular masses varying in cellotriosyl/cellotetraosyl oligomer ratio for 4 weeks...
November 22, 2017: Food & Function
https://www.readbyqxmd.com/read/29162773/a-high-fat-and-high-cholesterol-diet-induces-cardiac-fibrosis-vascular-endothelial-and-left-ventricular-diastolic-dysfunction-in-shrsp5-dmcr-rats
#7
Shogo Watanabe, Shota Kumazaki, Katsuhiro Kusunoki, Terumi Inoue, Yui Maeda, Shinichi Usui, Ryoko Shinohata, Takashi Ohtsuki, Satoshi Hirohata, Shozo Kusachi, Kazuya Kitamori, Mari Mori, Yukio Yamori, Hisao Oka
AIM: Non-alcoholic steatohepatitis (NASH) increases cardiovascular risk regardless of risk factors in metabolic syndrome. However, the intermediary factors between NASH and vascular disease are still unknown because a suitable animal model has never been established. The stroke-prone (SP) spontaneously hypertensive rat, SHRSP5/Dmcr, simultaneously develops hypertension, acute arterial lipid deposits in mesenteric arteries, and NASH when feed with a high-fat and high-cholesterol (HFC) diet...
November 22, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/29161267/sugar-industry-sponsorship-of-germ-free-rodent-studies-linking-sucrose-to-hyperlipidemia-and-cancer-an-historical-analysis-of-internal-documents
#8
Cristin E Kearns, Dorie Apollonio, Stanton A Glantz
In 1965, the Sugar Research Foundation (SRF) secretly funded a review in the New England Journal of Medicine that discounted evidence linking sucrose consumption to blood lipid levels and hence coronary heart disease (CHD). SRF subsequently funded animal research to evaluate sucrose's CHD risks. The objective of this study was to examine the planning, funding, and internal evaluation of an SRF-funded research project titled "Project 259: Dietary Carbohydrate and Blood Lipids in Germ-Free Rats," led by Dr. W...
November 2017: PLoS Biology
https://www.readbyqxmd.com/read/29161233/swimming-but-not-vitamin-e-ameliorates-prothrombotic-state-and-hypofibrinolysis-in-a-rat-model-of-nonalcoholic-fatty-liver-disease
#9
Hussein F Sakr, Amr M Abbas, Mohamed A Haidara
BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is associated with a systemic procoagulant hypofibrinolysis state that is considered as a risk factor for microangiopathy and peripheral vascular diseases. Swimming exercise ameliorates the metabolic dysfunction in type 2 diabetes. Vitamin E is a natural antioxidant that reduces the risk of endothelial dysfunction in metabolic syndrome. The aim of the present study is to investigate the effect of combined swimming exercise with vitamin E on coagulation as well as blood fibrinolysis markers in rats with NAFLD...
November 21, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/29158770/does-the-enterolactone-enl-affect-fatty-acid-transporters-and-lipid-metabolism-in-liver
#10
Krzysztof Drygalski, Klaudia Berk, Tomasz Charytoniuk, Nicoletta Iłowska, Bartłomiej Łukaszuk, Adrian Chabowski, Karolina Konstantynowicz-Nowicka
Background: NAFLD as a result of inappropriate diet and obesity, may progress to sever conditions such as: type 2 diabetes mellitus or steatohepatitis, and has recently become a prevalent topic of numerous investigations. Due to its dangerous aftermaths, finding new substances, such as polyphenols and their derivatives, which might reduce liver steatosis is the main target of research into NAFLD treatment. Hence, the aim of the present study was to evaluate the effect(s) of enterolactone (ENL), a metabolite of secoisolariciresinol (SECO), on lipid metabolism together with changes in the expression of fatty acid transporters in fatty liver...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/29158483/noninvasive-liquid-diet-delivery-of-stable-isotopes-into-mouse-models-for-deep-metabolic-network-tracing
#11
Ramon C Sun, Teresa W-M Fan, Pan Deng, Richard M Higashi, Andrew N Lane, Anh-Thu Le, Timothy L Scott, Qiushi Sun, Marc O Warmoes, Ye Yang
Delivering isotopic tracers for metabolic studies in rodents without overt stress is challenging. Current methods achieve low label enrichment in proteins and lipids. Here, we report noninvasive introduction of (13)C6-glucose via a stress-free, ad libitum liquid diet. Using NMR and ion chromatography-mass spectrometry, we quantify extensive (13)C enrichment in products of glycolysis, the Krebs cycle, the pentose phosphate pathway, nucleobases, UDP-sugars, glycogen, lipids, and proteins in mouse tissues during 12 to 48 h of (13)C6-glucose feeding...
November 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/29158445/pdgfr%C3%AE-pdgfr%C3%AE-signaling-balance-modulates-progenitor-cell-differentiation-into-white-and-beige-adipocytes
#12
Zhanguo Gao, Alexes C Daquinag, Fei Su, Brad Snyder, Mikhail G Kolonin
Relative abundance of thermogenic beige adipocytes and lipid-storing white adipocytes in adipose tissue underlie its metabolic activity. The roles of adipocyte progenitor cells, which express PDGFRα or PDGFRβ, in adipose tissue function have remained unclear. Here, by defining the developmental timing of PDGFRα and PDGFRβ expression in mouse subcutaneous and visceral adipose depots, we uncover depot-specificity of preadipocyte delineation. We demonstrate that PDGFRα expression precedes PDGFRβ expression in all subcutaneous but only in a fraction of visceral adipose stromal cells...
November 20, 2017: Development
https://www.readbyqxmd.com/read/29158183/serine-prevented-high-fat-diet-induced-oxidative-stress-by-activating-ampk-and-epigenetically-modulating-the-expression-of-glutathione-synthesis-related-genes
#13
Xihong Zhou, Liuqin He, Shengnan Zuo, Yumei Zhang, Dan Wan, Ciming Long, Pan Huang, Canrong Wu, Xin Wu, Gang Liu, Yulong Yin
Serine deficiency has been observed in patients with nonalcoholic fatty liver disease (NAFLD). Whether serine supplementation has any beneficial effects on the prevention of NAFLD remains unknown. The present study was conducted to investigate the effects of serine supplementation on hepatic oxidative stress and steatosis and its related mechanisms. Forty male C57BL/6J mice (9week-old) were randomly assigned into four groups (n=10) and fed: i) a low-fat diet; ii) a low-fat diet supplemented with 1% (wt:vol) serine; iii) a high-fat (HF) diet; and iv) a HF diet supplemented with 1% serine, respectively...
November 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29158052/baicalin-attenuates-non-alcoholic-steatohepatitis-by-suppressing-key-regulators-of-lipid-metabolism-inflammation-and-fibrosis-in-mice
#14
Junli Zhang, Haiming Zhang, Xiaoling Deng, Ning Zhang, Beibei Liu, Shengliang Xin, Guixin Li, Keshu Xu
AIMS: Baicalin (BA), an active flavonoid compound originating from the herb of Scutellaria baicalensis Georgi, has been previously shown to exert anti-inflammation and anti-oxidant effects in liver diseases. However, the potential role of BA in the regulation of non-alcoholic steatohepatitis (NASH) remains elusive. In this study, we newly explored the hepatoprotective effects of BA in MCD diet-induced NASH by ameliorating hepatic steatosis, inflammation, fibrosis and apoptosis. MAIN METHODS: NASH was induced in mice fed a methionine and choline-deficient (MCD) diet for 4weeks...
November 17, 2017: Life Sciences
https://www.readbyqxmd.com/read/29157255/effects-of-antarctic-krill-oil-on-lipid-and-glucose-metabolism-in-c57bl-6j-mice-fed-with-high-fat-diet
#15
Dewei Sun, Liang Zhang, Hongjian Chen, Rong Feng, Peirang Cao, Yuanfa Liu
BACKGROUND: Obesity and other metabolic diseases have become epidemic which greatly affect human health. Diets with healthy nutrition are efficient means to prevent this epidemic occurrence. Novel food resources and process technology were needed for these purpose. In this study, Antarctic krill oil (KO) extracted from a dry krill by a procedure of hot pump dehydration in combined with freezing-drying was used to investigate health effect in animals including the growth, lipid and glucose metabolism...
November 21, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29157127/modulation-of-the-gut-microbiota-by-metformin-improves-metabolic-profiles-in-aged-obese-mice
#16
Heetae Lee, Youngjoo Lee, Jiyeon Kim, Jinho An, Sungwon Lee, Hyunseok Kong, Youngcheon Song, Chong-Kil Lee, Kyungjae Kim
The gut microbiota is a contributing factor in obesity-related metabolic disorders. The effect of metformin on the gut microbiota has been reported; however, the relationship between the gut microbiota and the mechanism of action of metformin in elderly individuals is unclear. In this study, the effect of metformin on the gut microbiota was investigated in aged obese mice. The abundance of the genera Akkermansia, Bacteroides, Butyricimonas, and Parabacteroides was significantly increased by metformin in mice fed a high-fat diet...
November 20, 2017: Gut Microbes
https://www.readbyqxmd.com/read/29156529/alpinetin-improved-high-fat-diet-induced-non-alcoholic-fatty-liver-disease-nafld-through-improving-oxidative-stress-inflammatory-response-and-lipid-metabolism
#17
Yong Zhou, Yin-Lu Ding, Jian-Liang Zhang, Peng Zhang, Jin-Qing Wang, Zhao-Hua Li
The non-alcoholic fatty liver disease (NAFLD) has become a serious medical problem and an increasing threat to public health. It is characterized by the abnormal fat accumulation in liver without excessive alcohol intake. The concurrent NAFLD might up-regulate the risk of chronic kidney disease as well as the mortality rate. Though various drugs have been investigated to attenuate NAFLD, further study is still necessary to find new therapeutic strategy and to reveal the underlying molecular mechanism. In the present study, NAFLD animal models were induced by feeding with high fat (HF) diet for 8 weeks...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156528/actein-ameliorates-hepatic-steatosis-and-fibrosis-in-high-fat-diet-induced-nafld-by-regulation-of-insulin-and-leptin-resistant
#18
Hong-Jun Chen, Jin Liu
Insulin and leptin resistance are highly involved in metabolic syndrome and non-alcoholic fatty liver disease (NAFLD). Presently, no approved treatment is available. Actein is isolated from the rthizomes of Cimicifuga foetida, a triterpene glycoside, exhibiting important biological properties, such as anti-inflammatory, anti-cancer, and anti-oxidant activity. However, its effects on metabolic syndrome are poorly understood. The aims of the study were mainly to investigate the molecular mechanisms regulating insulin and leptin resistance, and lipogenic action of actein in high fat diet-fed mice...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29155735/quantification-of-monocyte-transmigration-and-foam-cell-formation-from-individuals-with-chronic-inflammatory-conditions
#19
Thomas A Angelovich, Anna C Hearps, Anna Maisa, Theodoros Kelesidis, Anthony Jaworowski
Coronary artery disease (CAD) is a leading cause of morbidity and mortality worldwide. Atherosclerosis, a leading cause of CAD, is initiated by the transmigration of innate immune monocytes to inflammatory sites of deposited lipid called fatty streaks, which are present in arterial walls of medium to large arteries. The key pathogenic feature of lesions at this early stage of atherosclerosis is the maturation of monocytes which migrate into arteries to form foam cells or lipid-laden macrophages. Considerable evidence supports the hypothesis that risk of atherosclerosis is increased by chronic inflammatory conditions accompanying diseases such as rheumatoid arthritis and HIV, as well as general ageing, and that this risk is predicted by monocyte activation...
October 17, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155147/selective-and-membrane-permeable-small-molecule-inhibitors-of-nicotinamide-n-methyltransferase-reverse-high-fat-diet-induced-obesity-in-mice
#20
Harshini Neelakantan, Virginia Vance, Michael D Wetzel, Hua-Yu Leo Wang, Stanton F McHardy, Celeste C Finnerty, Jonathan D Hommel, Stanley J Watowich
There is a critical need for new mechanism-of-action drugs that reduce the burden of obesity and associated chronic metabolic comorbidities. A potentially novel target to treat obesity and type 2 diabetes is nicotinamide-N-methyltransferase (NNMT), a cytosolic enzyme with newly identified roles in cellular metabolism and energy homeostasis. To validate NNMT as an anti-obesity drug target, we investigated the permeability, selectivity, mechanistic, and physiological properties of a series of small molecule NNMT inhibitors...
November 15, 2017: Biochemical Pharmacology
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