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https://www.readbyqxmd.com/read/29156823/differential-activation-of-fyn-kinase-distinguishes-saturated-and-unsaturated-fats-in-mouse-macrophages
#1
Elena Tarabra, Ting-Wen An Lee, Victor A Zammit, Manu Vatish, Eijiro Yamada, Jeffrey E Pessin, Claire C Bastie
Diet-induced obesity is associated with increased adipose tissue activated macrophages. Yet, how macrophages integrate fatty acid (FA) signals remains unclear. We previously demonstrated that Fyn deficiency (fynKO) protects against high fat diet-induced adipose tissue macrophage accumulation. Herein, we show that inflammatory markers and reactive oxygen species are not induced in fynKO bone marrow-derived macrophages exposed to the saturated FA palmitate, suggesting that Fyn regulates macrophage function in response to FA signals...
October 17, 2017: Oncotarget
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
#2
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
#3
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/29155147/selective-and-membrane-permeable-small-molecule-inhibitors-of-nicotinamide-n-methyltransferase-reverse-high-fat-diet-induced-obesity-in-mice
#4
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
https://www.readbyqxmd.com/read/29154926/site-specific-effects-of-apolipoprotein-e-expression-on-diet-induced-obesity-and-white-adipose-tissue-metabolic-activation
#5
Aikaterini Hatziri, Christina Kalogeropoulou, Eva Xepapadaki, Eleni Birli, Eleni A Karavia, Eugenia Papakosta, Serafoula Filou, Caterina Constantinou, Kyriakos E Kypreos
Apolipoprotein E (APOE) has been strongly implicated in the development of diet induced obesity. In the present study, we investigated the contribution of brain and peripherally expressed human apolipoprotein E3 (APOE3), the most common human isoform, to diet induced obesity. In our studies APOE3 knock-in (Apoe3(knock-in)), Apoe-deficient (apoe(-/-)) and brain-specific expressing APOE3 (Apoe3(brain)) mice were fed western-type diet for 12week and biochemical analyses were performed. Moreover, AAV-mediated gene transfer of APOE3 to apoe(-/-) mice was employed, as a means to achieve APOE3 expression selectively in periphery, since peripherally expressed APOE does not cross barrier (BBB) or blood-cerebrospinal fluid barrier (BCSFB)...
November 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29154902/dipeptidyl-peptidase-iv-dpp-iv-inhibition-prevents-fibrosis-in-adipose-tissue-of-obese-mice
#6
Ana Patrícia Marques, Janete Cunha-Santos, Helena Leal, Lígia Sousa-Ferreira, Luís Pereira de Almeida, Cláudia Cavadas, Joana Rosmaninho-Salgado
BACKGROUND: During the development of obesity the expansion of white adipose tissue (WAT) leads to a dysregulation and an excessive remodeling of extracellular matrix (ECM), leading to fibrosis formation. These ECM changes have high impact on WAT physiology and may change obesity progression. Blocking WAT fibrosis may have beneficial effects on the efficacy of diet regimen or therapeutical approaches in obesity. Since dipeptidyl peptidase IV (DPP-IV) inhibitors prevent fibrosis in tissues, such as heart, liver and kidney, the objective of this study was to assess whether vildagliptin, a DPP-IV inhibitor, prevents fibrosis in WAT in a mouse model of obesity, and to investigate the mechanisms underlying this effect...
November 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29154836/a-new-promising-simultaneous-approach-for-attenuating-type-ii-diabetes-mellitus-induced-neuropathic-pain-in-rats-inos-inhibition-and-neuroregeneration
#7
Abhilasha Ahlawat, Saurabh Sharma
In view of the pathologic basis for the treatment of diabetic neuropathy, it is important to enhance nerve regeneration as well as prevent nerve degeneration. So, in the present study, we have investigated the effect of S-Methylisothiourea Sulfate (selective iNOS inhibitor) and Citicoline, alone and in combination, on Type II Diabetes Mellitus induced neuropathic pain in wistar rats. Type II diabetes was induced by providing high fat diet and low dose of Streptozotocin for 35 days in rats. Type II Diabetes Mellitus was assessed in terms of increased glucose, triglycerides, cholesterol, LDL levels, glucose tolerance and decrease in HDL levels...
November 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29154786/sex-differences-in-high-fat-diet-induced-impairments-to-striatal-akt-signaling-and-enhanced-sensitivity-to-the-behavioral-effects-of-dopamine-d2-d3-receptor-agonist-quinpirole
#8
Jeremiah Ramos, Caroline Hernandez-Casner, Bryan Cruz, Katherine M Serafine
Eating a high fat laboratory chow enhances sensitivity of rats to the behavioral effects of drugs that act on dopamine systems (e.g., cocaine). Further, in male rats, eating high fat chow impairs expression of insulin signaling phosphorylated protein kinase B (pAkt), which is vital for maintaining dopamine homeostasis. Eating high fat chow enhances sensitivity of female rats to drugs that act indirectly on dopamine receptors (e.g., cocaine); however, less is known about sensitivity of females to drugs that act directly on dopamine receptors (e...
November 14, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29154469/novel-non-alcoholic-steatohepatitis-model-with-histopathological-and-insulin-resistant-features
#9
Yohei Owada, Takafumi Tamura, Tomohito Tanoi, Yusuke Ozawa, Yoshio Shimizu, Katsuji Hisakura, Takashi Matsuzaka, Hitoshi Shimano, Noriyuki Nakano, Shingo Sakashita, Toshiya Matsukawa, Hiroko Isoda, Nobuhiro Ohkohchi
Although several non-alcoholic steatohepatitis (NASH) models have been reported to date, few of these models fully reflect the histopathology and pathophysiology of human NASH. The aim of this study was to establish a novel NASH model by feeding a high-fat (HF) diet and administering both carbon tetrachloride (CCl4 ) and the Liver X receptor agonist T0901317. Male C57BL/6J mice were divided into four groups (each n = 5): HF, HF + CCl4 , HF + T0901317, and the novel NASH model (HF + CCl4  + T0901317)...
November 20, 2017: Pathology International
https://www.readbyqxmd.com/read/29154190/-epicatechin-protects-the-intestinal-barrier-from-high-fat-diet-induced-permeabilization-implications-for-steatosis-and-insulin-resistance
#10
Eleonora Cremonini, Ziwei Wang, Ahmed Bettaieb, Ana M Adamo, Elena Daveri, David A Mills, Karen M Kalanetra, Fawaz G Haj, Sidika Karakas, Patricia I Oteiza
Increased permeability of the intestinal barrier is proposed as an underlying factor for obesity-associated pathologies. Consumption of high fat diets (HFD) is associated with increased intestinal permeabilization and increased paracellular transport of endotoxins which can promote steatosis and insulin resistance. This study investigated whether dietary (-)-epicatechin (EC) supplementation can protect the intestinal barrier against HFD-induced permeabilization and endotoxemia, and mitigate liver damage and insulin resistance...
November 7, 2017: Redox Biology
https://www.readbyqxmd.com/read/29153568/maternal-obesity-and-cardiac-development-in-the-offspring-study-in-human-neonates-and-minipigs
#11
Maria Angela Guzzardi, Tiziana Liistro, Luna Gargani, Lamia Ait Ali, Gennaro D'Angelo, Silvia Rocchiccioli, Federica La Rosa, Alessandra Kemeny, Elena Sanguinetti, Nadia Ucciferri, Mariarosaria De Simone, Antonietta Bartoli, Pierluigi Festa, Piero A Salvadori, Silvia Burchielli, Rosa Sicari, Patricia Iozzo
OBJECTIVES: The aim of this study was to investigate the consequences of maternal overweight on cardiac development in offspring in infants (short term) and minipigs (short and longer term). BACKGROUND: The epidemic of overweight involves pregnant women. The uterine environment affects organ development, modulating disease susceptibility. Offspring of obese mothers have higher rates of cardiovascular events and mortality. METHODS: Echocardiography was performed in infants born to lean and overweight mothers at birth and at 3, 6, and 12 months of age...
November 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29152944/combined-oral-supplementation-of-chromium-picolinate-docosahexaenoic-acid-and-boron-enhances-neuroprotection-in-rats-fed-a-high-fat-diet
#12
Cemal Orhan, Nurhan Şahin, Zeynep Tuzcu, James R. Komorowski, Kazım Şahin
Background/aim: A novel complex of a nutritional supplement (CDB) contains chromium picolinate (CrPic), phosphatidylserine (PS), docosahexaenoic acid (DHA), and boron (B). The present study aimed to investigate the effects of CDB on the metabolic profile and memory acquisition in rats fed a high-fat diet (HFD). Materials and methods: Male Wistar rats were divided into six groups and received either a regular diet or HFD supplemented with or without different levels of CDB (0, 11, or 22 mg/kg BW). Results: Rats fed the HFD had greater glucose, insulin, lipid profile, and serum malondialdehyde concentrations, but lower serotonin and tryptophan in the serum and brain and lower Cr concentrations in serum, kidney, brain, and liver (P < 0...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29152632/a-combination-of-quercetin-and-resveratrol-reduces-obesity-in-high-fat-diet-fed-rats-by-modulation-of-gut-microbiota
#13
Le Zhao, Qi Zhang, Weini Ma, Feng Tian, Hongyi Shen, Mingmei Zhou
Resveratrol and quercetin, widely found in foods and vegetables, are plant polyphenols reported to have a wide range of biological activities. Despite their limited bioavailabilities, both resveratrol and quercetin are known to exhibit anti-inflammation and anti-obesity effects. We hypothesized that gut microbiota may be a potential target for resveratrol and quercetin to prevent the development of obesity. The aim of this research was to confirm whether a combination of quercetin and resveratrol (CQR) could restore the gut microbiota dysbiosis induced by a high-fat diet (HFD)...
November 20, 2017: Food & Function
https://www.readbyqxmd.com/read/29152605/hepatic-natural-killer-t-cell-and-cd8-t-cell-signatures-in-mice-with-nonalcoholic-steatohepatitis
#14
Jashdeep Bhattacharjee, Michelle Kirby, Samir Softic, Lili Miles, Rosa-Maria Salazar-Gonzalez, Pranav Shivakumar, Rohit Kohli
Hepatic inflammation is a key pathological feature of Nonalcoholic Steatohepatitis (NASH). Natural Killer T-cells (NKT) and CD8+ T-cells are known to play an important role in obesity related adipose tissue inflammation. We hypothesized that these same inflammatory phenotypes would be present in progressive NASH. We used a previously established high fat high carbohydrate (HFHC) murine obesogenic diet model of progressive NASH to investigate the role of NKT cells and CD8+ T-cells in C57Bl6/J mice. Further, to better understand the impact of these cell populations; CD1d-deficient and CD8+ T-cell depleted mice were subjected to HFHC diet for 16 weeks...
June 2017: Hepatol Commun
https://www.readbyqxmd.com/read/29152255/effects-of-monobutyrin-and-tributyrin-on-liver-lipid-profile-caecal-microbiota-composition-and-scfa-in-high-fat-diet-fed-rats
#15
Thao Duy Nguyen, Olena Prykhodko, Frida Fåk Hållenius, Margareta Nyman
Butyric acid has been shown to have suppressive effects on inflammation and diseases related to the intestinal tract. The aim of the present study was to investigate whether supplementation of two glycerol esters, monobutyrin (MB) and tributyrin (TB), would reach the hindgut of rats, thus having an effect on the caecal profile of SCFA, microbiota composition and some risk markers associated with chronic inflammation. For this purpose, rats were fed high-fat diets after adding MB (1 and 5 g/kg) and TB (5 g/kg) to a diet without any supplementation (high-fat control; HFC)...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29152245/metabolic-syndrome-and-inflammation-in-adipose-tissue-occur-at-different-times-in-animals-submitted-to-a-high-sugar-fat-diet
#16
Fabiane Valentini Francisqueti, André Ferreira Nascimento, Igor Otávio Minatel, Marcos Correa Dias, Renata de Azevedo Melo Luvizotto, Carolina Berchieri-Ronchi, Ana Lúcia A Ferreira, Camila Renata Corrêa
Obesity is associated with low-grade inflammation, triggered in adipose tissue, which may occur due to an excess of SFA from the diet that can be recognised by Toll-like receptor-4. This condition is involved in the development of components of the metabolic syndrome associated with obesity, especially insulin resistance. The aim of the study was to evaluate the manifestation of the metabolic syndrome and adipose tissue inflammation as a function of the period of time in which rats were submitted to a high-sugar/fat diet (HSF)...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29152236/low-levels-of-very-long-chain-n-3-pufa-in-atlantic-salmon-salmo-salar-diet-reduce-fish-robustness-under-challenging-conditions-in-sea-cages
#17
Marta Bou, Gerd M Berge, Grete Baeverfjord, Trygve Sigholt, Tone-Kari Østbye, Bente Ruyter
The present study aimed to determine the minimum requirements of the essential n-3 fatty acids EPA and DHA in Atlantic salmon (Salmo salar) that can secure their health under challenging conditions in sea cages. Individually tagged Atlantic salmon were fed 2, 10 and 17 g/kg of EPA + DHA from 400 g until slaughter size (about 3·5 kg). The experimental fish reared in sea cages were subjected to the challenging conditions typically experienced under commercial production. Salmon receiving the lowest EPA + DHA levels showed lower growth rates in the earlier life stages, but no significant difference in final weights at slaughter...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29152146/breast-tissue-oral-and-urinary-microbiomes-in-breast-cancer
#18
Hannah Wang, Jessica Altemus, Farshad Niazi, Holly Green, Benjamin C Calhoun, Charles Sturgis, Stephen R Grobmyer, Charis Eng
It has long been proposed that the gut microbiome contributes to breast carcinogenesis by modifying systemic estrogen levels. This is often cited as a possible mechanism linking breast cancer and high-fat, low-fiber diets as well as antibiotic exposure, associations previously identified in population-based studies. More recently, a distinct microbiome has been identified within breast milk and tissue, but few studies have characterized differences in the breast tissue microbiota of patients with and without cancer, and none have investigated distant body-site microbiomes outside of the gut...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151980/synbiotic-effects-of-%C3%AE-glucans-from-cauliflower-mushroom-and-lactobacillus-fermentum-on-metabolic-changes-and-gut-microbiome-in-estrogen-deficient-rats
#19
Seong-Yeop Jeong, Suna Kang, Cao Shi Hua, Zhang Ting, Sunmin Park
Background: We investigated whether the long-term consumption of a symbiotic formulation with Lactobacillus fermentum (probiotic) and β-glucan from cauliflower mushroom (prebiotic) would delay the progression of post-menopausal symptoms in ovariectomized (OVX) rats and explored their mechanisms of action, including changes in gut microbiota. Methods: OVX rats were fed with high-fat diets containing 1% dextrin (control), 1% lyophilized cauliflower mushroom extract (CFM), 0...
2017: Genes & Nutrition
https://www.readbyqxmd.com/read/29151833/effect-of-ewe-s-semi-skimmed-and-whole-and-cow-s-milk-yogurt-consumption-on-the-lipid-profile-of-control-subjects-a-crossover-study
#20
Begoña Olmedilla-Alonso, Esther Nova-Rebato, Natalia García-González, Ana-Belén Martín-Diana, Javier Fontecha, David Delgado, Ana-Elisa Gredilla, Francisco Bueno, Carmen Asensio-Vegas
Yogurt is the most widely consumed fermented milk product worldwide. Studies have mainly used milk and dairy products from cow, which have a lower fat content than those from ewe and a different lipid profile. This study investigated the effect on the lipid profile of control subjects of three different set yogurts: (a) semi-skimmed ewe´s milk yogurt (2.8% milk fat); (b) whole ewe´s milk yogurt (5.8 % milk fat); (c) cow´s milk yogurt (3 % milk fat). A randomized crossover study included 30 healthy adults (16 women) to consume 250 g/yogurt/day during three consecutive 5-weeks periods separated by 4-week washouts...
2017: Food & Nutrition Research
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