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https://www.readbyqxmd.com/read/28919867/sulfated-cholecystokinin-8-promotes-cd36-mediated-fatty-acid-uptake-into-primary-mouse-duodenal-enterocytes
#1
Claire Demenis, John McLaughlin, Craig P Smith
Cholecystokinin (CCK) is an archetypal incretin hormone secreted by intestinal enteroendocrine cells (EEC) in response to ingested nutrients. The aim of this study was to determine whether CCK modulates enterocyte fatty acid uptake by primary mouse duodenal cells. Exposure of primary mouse duodenal cells to 10 pM sulfated CCK-8 caused a two fold increase in dodecanoic acid fatty acid (FA) uptake. The selective CCK A receptor antagonist loxiglumide (100 μM) completely abolished the CCK-8 induced FA uptake. The CD36 fatty acid translocase-specific inhibitor sulfo-N-succinimidyl oleate (1 μM) also completely inhibited CCK-8 induced FA uptake, as did treatment with 200 μM phloretin...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28919632/cd36-in-chronic-kidney-disease-novel-insights-and-therapeutic-opportunities
#2
REVIEW
Xiaochun Yang, Daryl M Okamura, Xifeng Lu, Yaxi Chen, John Moorhead, Zac Varghese, Xiong Z Ruan
CD36 (also known as scavenger receptor B2) is a multifunctional receptor that mediates the binding and cellular uptake of long-chain fatty acids, oxidized lipids and phospholipids, advanced oxidation protein products, thrombospondin and advanced glycation end products, and has roles in lipid accumulation, inflammatory signalling, energy reprogramming, apoptosis and kidney fibrosis. Renal CD36 is mainly expressed in tubular epithelial cells, podocytes and mesangial cells, and is markedly upregulated in the setting of chronic kidney disease (CKD)...
September 18, 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28894284/trem2-promotes-a%C3%AE-phagocytosis-by-upregulating-c-ebp%C3%AE-dependent-cd36-expression-in-microglia
#3
Su-Man Kim, Bo-Ram Mun, Sun-Jun Lee, Yechan Joh, Hwa-Youn Lee, Kon-Young Ji, Ha-Rim Choi, Eun-Hee Lee, Eun-Mi Kim, Ji-Hye Jang, Hyeong-Woo Song, Inhee Mook-Jung, Won-Seok Choi, Hyung-Sik Kang
TREM2 plays a critical role in the alleviation of Alzheimer's disease by promoting Aβ phagocytosis by microglia, but the detailed molecular mechanism underlying TREM2-induced direct phagocytic activity of Aβ remains to be revealed. We found that learning and memory functions were improved in aged TREM2 TG mice, with the opposite effects in KO mice. The amount of phagocytosed Aβ was significantly reduced in the primary microglia of KO mice. CD36 expression in primary microglia was greater in TG than in WT mice but was substantially decreased in KO mice...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28887612/effect-of-acute-exposure-to-pfoa-on-mouse-liver-cells-in-vivo-and-in-vitro
#4
Xinmou Wu, Minqing Liang, Zhao Yang, Min Su, Bin Yang
Increasingly, epidemiological evidences indicate chemosynthetic perfluorooctanoic acid (PFOA), an environmental pollutant, induces potential adverse effect on human health after long-term exposure. However, less study has been performed for assessment of acute effect of PFOA exposure on metabolic homeostasis. In experimental designs, PFOA-exposed liver cells in vivo and in vitro were used to discuss underlying mechanism related to PFOA-induced metabolic dysfunction. In serological tests, PFOA-exposed mice showed increased treads of liver functional enzymes in alanine transaminase (ALT), aspartate transaminase (AST), and total bilirubin (T-BIL), trypsinase, low density lipoprotein-cholesterol (LDL-C), and insulin, while blood glucose, high density lipoprotein-cholesterol (HDL-C), and glucagon levels were reduced...
September 8, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28883917/betaine-affects-muscle-lipid-metabolism-via-regulating-the-fatty-acid-uptake-and-oxidation-in-finishing-pig
#5
Sisi Li, Haichao Wang, Xinxia Wang, Yizhen Wang, Jie Feng
BACKGROUND: Betaine affects fat metabolism in animals, but the specific mechanism is still not clear. The purpose of this study was to investigate possible mechanisms of betaine in altering lipid metabolism in muscle tissue in finishing pigs. METHODS: A total of 120 crossbred gilts (Landrace × Yorkshire × Duroc) with an average initial body weight of 70.1 kg were randomly allotted to three dietary treatments. The treatments included a corn-soybean meal basal diet supplemented with 0, 1250 or 2500 mg/kg betaine...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28883843/plasma-soluble-cd36-carotid-intima-media-thickness-and-cognitive-function-in-patients-with-type-2-diabetes
#6
Xiaozhen Jiang, Xiaohui Zhao, Ruihua Chen, Quan Jiang, Bin Zhou
INTRODUCTION: Diabetes and atherosclerosis are both risk factors of cognitive deficits. Scavenger receptor CD36 is associated with increasing risk of diabetes and atherosclerosis, and may play a role in cognitive deficits. The aim of this study is to determine the correlations of plasma soluble CD36 concentrations with carotid intima-media thickness (IMT) and cognitive function in patients with type 2 diabetes. MATERIAL AND METHODS: We determined the levels of soluble CD36 (sCD36), blood lipids, fasting blood glucose, glycosylated hemoglobin, carotid atherosclerosis as IMT, cognitive function by the Montreal Cognitive Assessment (MoCA) scoring system, and other clinical characteristics in 357 patients with type 2 diabetes...
August 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28878129/correction-of-intermittent-hypoxia-reduces-inflammation-in-obese-subjects-with-obstructive-sleep-apnea
#7
Sebastio Perrini, Angelo Cignarelli, Vitaliano Nicola Quaranta, Vito Antonio Falcone, Stella Kounaki, Stefania Porro, Alessandro Ciavarella, Romina Ficarella, Maria Barbaro, Valentina Annamaria Genchi, Pasquale Nigro, Pierluigi Carratù, Annalisa Natalicchio, Luigi Laviola, Onofrio Resta, Francesco Giorgino
BACKGROUND: In obese subjects with obstructive sleep apnea (OSA), chronic intermittent hypoxia (CIH) may be linked to systemic and adipose tissue inflammation. METHODS: We obtained abdominal subcutaneous adipose tissue biopsies from OSA and non-OSA obese (BMI > 35) subjects at baseline and after 24 weeks (T1) of weight-loss intervention plus continuous positive airway pressure (c-PAP) or weight-loss intervention alone, respectively. OSA subjects were grouped according to good (therapeutic) or poor (subtherapeutic) adherence to c-PAP...
September 7, 2017: JCI Insight
https://www.readbyqxmd.com/read/28875489/adipose-tissue-resident-regulatory-t-cells
#8
Fuxiang Zhu, Aiting Wang, Yangyang Li, Rui Liang, Dan Li, Bin Li
Tissue-resident immune cells play critical roles in regulating tissue function and homeostasis. Obesity-associated visceral adipose tissue inflammation is attributed to the accumulation of M1 macrophages which produce inflammatory cytokines like TNF-α, IL-6, and expansion of effector T cells like Th1 cells, CD8(+) cytotoxic T cells which produce interferon-γ to further add to the severity of inflammation in the visceral adipose tissue. Regulatory T cells have been reported to exert key roles in suppressing inflammation, thus maintaining the homeostasis of immune responses, and visceral adipose Tregs exert critical roles in defending against obesity-associated metabolic disorders...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28871950/-effect-of-microrna-155-on-inflammatory-response-and-lipid-uptake-of-macrophages-and-its-mechanism
#9
Xiaoliang Zhang, Jinshan Ye, Xing Liang, Lixia Yang
Objective To investigate the effect of microRNA-155 on inflammatory response and lipid uptake of macrophages after the cells are stimulated by ox-LDL and its potential mechanism. Methods Macrophage RAW264.7 cells were treated with 0, 25, 50 and 100 μg/mL ox-LDL for 24 hours or with 50 μg/mL ox-LDL for 0, 6, 12, 24 hours. The level of miR-155 was evaluated in all above samples through real-time quantitative PCR. In our research, RAW264.7 cells were divided into six groups: control group, ox-LDL group, ox-LDL/negative control group, ox-LDL/anti-miR-155 group, ox-LDL/shRNA negative control group and ox-LDL/PPARγ-shRNA group...
August 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28869259/anti-hyperlipidemic-effect-of-rice-bran-polysaccharide-and-its-potential-mechanism-in-high-fat-diet-mice
#10
Ying Nie, Feijun Luo, Long Wang, Tao Yang, Limin Shi, Xinhua Li, Junjun Shen, Wei Xu, Ting Guo, Qinlu Lin
Hyperlipidemia occurs very often in modern society along with a high calorie intake and is regarded as one of the greatest risk factors for the prevalence of cardiac vascular disease (CVD). In this study, we investigated the anti-hyperlipidemic effect of the rice bran polysaccharides (RBP) and its mechanism in a high fat diet animal model. 60 ICR mice were randomly divided into 3 groups, which included Control, HFD (high fat diet) and HFD + RBP, and each group included 20 mice. The control group was fed with a standard diet while the other two groups were fed with HFD...
September 4, 2017: Food & Function
https://www.readbyqxmd.com/read/28867186/dietary-%C3%AE-conglycinin-prevents-acute-ethanol-induced-fatty-liver-in-mice
#11
Reina Ikaga, Dongyang Li, Tomomi Yamazaki
Alcoholic fatty liver is the earliest stage of alcohol-induced liver disease leading to liver cirrhosis. β-Conglycinin, one of the soy proteins, is known to prevent non-alcoholic fatty liver, hyperlipidemia and obesity. Therefore, we examined whether β-conglycinin feeding has an effect on the prevention of acute ethanol-induced fatty liver in mice. Male C57BL/6J mice were fed with 20 energy% β-conglycinin or casein for 4 weeks prior to ethanol administration and were then given ethanol or glucose, as a control, by gavage...
August 31, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28866086/evaluation-of-the-relationship-between-cd36-and-marco-single-nucleotide-polymorphisms-and-susceptibility-to-carotid-atherosclerosis-in-a-chinese-han-population
#12
Yang Chu, Wenting Lao, Guojiang Jin, Di Dai, Li Chen, Hui Kang
OBJECTIVE: This study analyzed the genetic association between two scavenger receptors single nucleotide polymorphisms (CD36 rs1761667, MARCO rs12998782) and carotid atherosclerosis in a Chinese Han population. METHODS: Samples of genomic DNA collected from patients (n=215) and healthy control subjects (n=252) were analyzed by the polymerase chain reaction with high-resolution melting analysis. Odds ratios and 95% confidence intervals were used to evaluate the association between the two SNPs and carotid atherosclerosis...
August 30, 2017: Gene
https://www.readbyqxmd.com/read/28864019/glyburide-treatment-in-gestational-diabetes-is-associated-with-increased-placental-glucose-transporter-1-expression-and-higher-birth-weight
#13
Paula Díaz, Kris Genelyn Dimasuay, Lindsey Koele-Schmidt, Brian Jang, Linda A Barbour, Thomas Jansson, Theresa L Powell
Use of glyburide in gestational diabetes (GDM) has raised concerns about fetal and neonatal side effects, including increased birth weight. Placental nutrient transport is a key determinant of fetal growth, however the effect of glyburide on placental nutrient transporters is largely unknown. We hypothesized that glyburide treatment in GDM pregnancies is associated with increased expression of nutrient transporters in the syncytiotrophoblast plasma membranes. We collected placentas from GDM pregnancies who delivered at term and were treated with either diet modification (n = 15) or glyburide (n = 8)...
September 2017: Placenta
https://www.readbyqxmd.com/read/28864004/maternal-bmi-and-gestational-diabetes-alter-placental-lipid-transporters-and-fatty-acid-composition
#14
Maria Teresa Segura, Hans Demmelmair, Susanne Krauss-Etschmann, Petra Nathan, Stefan Dehmel, Maria Carmen Padilla, Ricardo Rueda, Berthold Koletzko, Cristina Campoy
INTRODUCTION: Placental fatty acid (FA) uptake and metabolism depend on maternal supply which may be altered when women have a high pre-pregnancy body mass index (BMI) or develop gestational diabetes (GDM). Consequently, an impaired FA transport to the fetus may negatively affect fetal development. While placental adaptation of maternal-fetal glucose transfer in mild GDM has been described, knowledge on placental FA acid metabolism and possible adaptations in response to maternal obesity or GDM is lacking...
September 2017: Placenta
https://www.readbyqxmd.com/read/28863469/parasites-causing-cerebral-falciparum-malaria-bind-multiple-endothelial-receptors-and-express-epcr-and-icam-1-binding-pfemp1
#15
Nicaise Tuikue Ndam, Azizath Moussiliou, Thomas Lavstsen, Claire Kamaliddin, Anja T R Jensen, Atikatou Mama, Rachida Tahar, Christian W Wang, Jakob S Jespersen, Jules M Alao, Benoit Gamain, Thor G Theander, Philippe Deloron
Background: Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) mediates the binding and accumulation of infected erythrocytes (IE) to blood vessels and tissues. Specific interactions have been described between PfEMP1 and human endothelial proteins CD36, intercellular adhesion molecule-1 (ICAM-1), and endothelial protein C receptor (EPCR); however, cytoadhesion patterns typical for pediatric malaria syndromes and the associated PfEMP1 members are still undefined. Methods: In a cohort of 94 hospitalized children with malaria, we characterized the binding properties of IE collected on admission, and var gene transcription using quantitative polymerase chain reaction...
June 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28860151/myeloid-receptor-cd36-is-required-for-early-phagocytosis-of-myocardial-infarcts-and-induction-of-nr4a1-dependent-mechanisms-of-cardiac-repair
#16
Shirley Dehn, Edward B Thorp
Phagocytosis after myocardial infarction (MI) is a prerequisite to cardiac repair. Recruited monocytes clear necrotic cardiomyocytes and differentiate into cardiac macrophages. Some studies have linked apoptotic cell receptors on cardiac macrophages to tissue repair; however, the contribution of precursor monocyte phagocytic receptors, which are the first to interact with the cardiac parenchyma, is unclear. The scavenger receptor cluster of differentiation (CD)36 protein was detected on cardiac Ly6cHI monocytes, and bone marrow-derived Cd36 was essential for both early phagocytosis of dying cardiomyocytes and for smaller infarct sizes in female and male mice after permanent coronary ligation...
August 31, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28851737/cholesterol-metabolism-and-cx43-cx46-cx50-gap-junction-protein-expression-and-localisation-in-normal-and-diabetic-and-obese-ob-ob-and-db-db-mouse-testes
#17
R-Marc Pelletier, Casimir D Akpovi, Li Chen, Maria Leiza Vitale
Decreased fertility and birth rates are afflictions arising from metabolic disorders. This study assesses cholesterol metabolism and Cx46, Cx50, Cx43 expression in interstitium- and seminiferous tubule-enriched fractions of leptin-deficient (ob/ob) and leptin receptor-deficient (db/db) mice, two type 2 diabetes and obesity models associated with infertility. Testosterone decreased, glucose, free and esterified cholesterol increased in serum whereas in interstitium, free and esterified cholesterol decreased in ob/ob and db/db...
August 29, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28843594/safety-assessment-of-the-dietary-supplement-oxyelite%C3%A2-pro-new-formula-in-inbred-and-outbred-mouse-strains
#18
Isabelle R Miousse, Charles M Skinner, Haixia Lin, Laura E Ewing, Stanley D Kosanke, D Keith Williams, Bharathi Avula, Ikhlas A Khan, Mahmoud A ElSohly, Bill J Gurley, Igor Koturbash
Herbal dietary supplements have gained wide acceptance as alternatives to conventional therapeutic agents despite concerns regarding their efficacy and safety. In 2013, a spate of severe liver injuries across the United States was linked to the dietary supplement OxyELITE Pro-New Formula (OEP-NF), a multi-ingredient product marketed for weight loss and exercise performance enhancement. The principal goal of this study was to assess the hepatotoxic potential of OEP-NF in outbred and inbred mouse models. In an acute toxicity study, significant mortality was observed after administering 10X and 3X mouse-equivalent doses (MED) of OEP-NF, respectively...
August 24, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28831970/characterisation-of-gene-expression-related-to-milk-fat-synthesis-in-the-mammary-tissue-of-lactating-yaks
#19
Jung Nam Lee, Yong Wang, Ya Ou Xu, Yu Can Li, Fang Tian, Ming Feng Jiang
This research communication describes the profile of gene expression related to the synthesis of yak milk as determined via quantitative reverse transcription polymerase chain reaction (RT-qPCR). Significant up-regulation during lactation were observed in genes related to fatty acid (FA) uptake from blood (LPL, CD36), intracellular FA transport (FABP3), intracellular FA activation of long- and short-chain FAs (ACSS1, ACSS2, ACSL1), de novo synthesis (ACACA), desaturation (SCD), triacyglycerol (TAG) synthesis (AGPAT6, GPAM, LPIN1), lipid droplet formation (PLIN2, BTN1A1, XDH), ketone body utilisation (BDH1, OXCT1), and transcription regulation (THRSP, PPARGC1A)...
August 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28830979/alterations-in-fatty-acid-metabolism-and-sirtuin-signaling-characterize-early-type-2-diabetic-hearts-of-fructose-fed-rats
#20
Phing-How Lou, Eliana Lucchinetti, Katrina Y Scott, Yiming Huang, Manoj Gandhi, Martin Hersberger, Alexander S Clanachan, Hélène Lemieux, Michael Zaugg
Despite the fact that skeletal muscle insulin resistance is the hallmark of type-2 diabetes mellitus (T2DM), inflexibility in substrate energy metabolism has been observed in other tissues such as liver, adipose tissue, and heart. In the heart, structural and functional changes ultimately lead to diabetic cardiomyopathy. However, little is known about the early biochemical changes that cause cardiac metabolic dysregulation and dysfunction. We used a dietary model of fructose-induced T2DM (10% fructose in drinking water for 6 weeks) to study cardiac fatty acid metabolism in early T2DM and related signaling events in order to better understand mechanisms of disease...
August 2017: Physiological Reports
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