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FABP4

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https://www.readbyqxmd.com/read/29031784/isobarictags-for-relative-and-absolute-quantitation-itraq-based-proteomics-for-the-investigation-of-the-effect-of-huganqingzhi-on-non-alcoholic-fatty-liver-disease-in-rats
#1
Fan Xia, Xiaorui Yao, Waijiao Tang, Chunxin Xiao, Miaoting Yang, Benjie Zhou
ETHNOPHARMACOLOGICAL RELEVANCE: Hugan Qingzhi tablet (HQT), a traditional Chinese medicine formula has been adopted for preventing and treating nonalcoholic fatty liver disease (NAFLD). AIM: In order to explore the anti-NAFLD mechanisms of HQT, iTRAQ-based proteomics was employed to investigate the expression profiles of proteins in NAFLD rats induced by high-fat diet after HQT treatment. MATERIALS AND METHODS: The NAFLD rat model was administration of high-fat diet (HFD) for 12weeks and administering HQT in a daily basis to the HFD groups...
October 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29026539/the-regulation-of-imf-deposition-in-pectoralis-major-of-fast-and-slow-growing-chickens-at-hatching
#2
Lu Liu, Huanxian Cui, Ruiqi Fu, Maiqing Zheng, Ranran Liu, Guiping Zhao, Jie Wen
BACKGROUND: The lipid from egg yolk is largely consumed in supplying the energy for embryonic growth until hatching. The remaining lipid in the yolk sac is transported into the hatchling's tissues. The gene expression profiles of fast- and slow-growing chickens, Arbor Acres (AA) and Beijing-You (BJY), were determined to identify global differentially expressed genes and enriched pathways related to lipid metabolism in the pectoralis major at hatching. RESULTS: Between these two breeds, the absolute and weight-specific amounts of total yolk energy (TYE) and intramuscular fat (IMF) content in pectoralis major of fast-growing chickens were significantly higher (P < 0...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29020626/uncoupling-of-metabolic-health-from-longevity-through-genetic-alteration-of-adipose-tissue-lipid-binding-proteins
#3
Khanichi N Charles, Min-Dian Li, Feyza Engin, Ana Paula Arruda, Karen Inouye, Gökhan S Hotamisligil
Deterioration of metabolic health is a hallmark of aging and generally assumed to be detrimental to longevity. Exposure to a high-calorie diet impairs metabolism and accelerates aging; conversely, calorie restriction (CR) prevents age-related metabolic diseases and extends lifespan. However, it is unclear whether preservation of metabolic health is sufficient to extend lifespan. We utilized a genetic mouse model lacking Fabp4/5 that confers protection against metabolic diseases and shares molecular and lipidomic features with CR to address this question...
October 10, 2017: Cell Reports
https://www.readbyqxmd.com/read/28993705/a-vicious-loop-of-fatty-acid-binding-protein-4-and-dna-methyltransferase-1-promotes-acute-myeloid-leukemia-and-acts-as-a-therapeutic-target
#4
F Yan, N Shen, J X Pang, N Zhao, Y W Zhang, A M Bode, A Al-Kali, M R Litzow, B Li, S J Liu
Aberrant DNA methylation mediated by deregulation of DNA methyltransferases (DNMT) is a key hallmark of acute myeloid leukemia (AML), yet efforts to target DNMT deregulation for drug development have lagged. We previously demonstrated that upregulation of fatty acid-binding protein 4 (FABP4) promotes AML aggressiveness through enhanced DNMT1-dependent DNA methylation. Here we demonstrate that FABP4 upregulation in AML cells occurs through vascular endothelial growth factor (VEGF) signaling, thus elucidating a crucial FABP4-DNMT1 regulatory feedback loop in AML biology...
October 10, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28986308/n-3-fatty-acids-combined-with-flavan-3-ols-prevent-steatosis-and-liver-injury-in-a-murine-model-of-nafld
#5
David Vauzour, Ildefonso Rodriguez-Ramiro, Simon Rushbrook, Ignacio R Ipharraguerre, Damon Bevan, Susan Davies, Noemi Tejera, Pedro Mena, Sonia de Pascual-Teresa, Daniele Del Rio, Jelena Gavrilovic, Anne Marie Minihane
Non-alcoholic fatty liver disease (NAFLD) affects 25% of adults and at present no licensed medication has been approved. Despite its complex patho-physiology, dietary strategies aiming at delaying or preventing NAFLD have taken a reductionist approach, examining the impact of single components. Accumulating evidence suggests that n-3 LC-PUFAs are efficacious in regulating lipogenesis and fatty acid oxidation. In addition, plant derived flavonoids are also emerging as a dietary strategy for NAFLD prevention, with efficacy attributed to their insulin sensitising and indirect antioxidant effects...
October 3, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28984821/mir-425-5p-inhibits-differentiation-and-proliferation-in-porcine-intramuscular-preadipocytes
#6
Fen-Fen Chen, Yan Xiong, Ying Peng, Yun Gao, Jin Qin, Gui-Yan Chu, Wei-Jun Pang, Gong-She Yang
Intramuscular fat (IMF) content affects the tenderness, juiciness, and flavor of pork. An increasing number of studies are focusing on the functions of microRNAs (miRs) during porcine intramuscular preadipocyte development. Previous studies have proved that miR-425-5p was enriched in porcine skeletal muscles and played important roles in multiple physiological processes; however, its functions during intramuscular adipogenesis remain unclear. To explore the role of miR-425-5p in porcine intramuscular adipogenesis, miR-425-5p agomir and inhibitor were used to perform miR-425-5p overexpression and knockdown in intramuscular preadipocytes, respectively...
October 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28955759/protocols-and-pitfalls-in-obtaining-fatty-acid-binding-proteins-for-biophysical-studies-of-ligand-protein-and-protein-protein-interactions
#7
Qian Wang, Samar Rizk, Cédric Bernard, May Poh Lai, David Kam, Judith Storch, Ruth E Stark
Adipocyte fatty acid-binding protein (AFABP: FABP4) is a member of the intracellular lipid-binding protein family that is thought to target long-chain fatty acids to nuclear receptors such as peroxisome proliferator-activated receptor gamma (PPARγ), which in turn plays roles in insulin resistance and obesity. A molecular understanding of AFABP function requires robust isolation of the protein in liganded and free forms as well as characterization of its oligomerization state(s) under physiological conditions...
July 2017: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/28941596/robust-suppression-of-cardiac-energy-catabolism-with-marked-accumulation-of-energy-substrates-during-lipopolysaccharide-induced-cardiac-dysfunction-in-mice
#8
Yogi Umbarawan, Mas Rizky A A Syamsunarno, Hideru Obinata, Aiko Yamaguchi, Hiroaki Sunaga, Hiroki Matsui, Takako Hishiki, Tomomi Matsuura, Norimichi Koitabashi, Masaru Obokata, Hirofumi Hanaoka, Anwarul Haque, Fumio Kunimoto, Yoshito Tsushima, Makoto Suematsu, Masahiko Kurabayashi, Tatsuya Iso
BACKGROUND: Myocardial contractile dysfunction in sepsis has been attributed mainly to increased inflammatory cytokines, insulin resistance, and impaired oxidative phosphorylation of fatty acids (FAs). However, precise molecular mechanisms underlying the cardiac dysfunction in sepsis remain to be determined. We previously reported major shift in myocardial energy substrates from FAs to glucose, and increased hepatic ketogenesis in mice lacking fatty acid-binding protein 4 (FABP4) and FABP5 (DKO)...
September 20, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28935125/maternal-circulating-adipokine-profile-and-insulin-resistance-in-women-at-high-risk-of-developing-gestational-diabetes-mellitus
#9
Kym J Guelfi, Ming Jing Ong, Shaofu Li, Karen E Wallman, Dorota A Doherty, Paul A Fournier, John P Newnham, Jeffrey A Keelan
BACKGROUND: Cytokines produced by adipose and placental tissues (adipokines) have been implicated in the development of gestational diabetes mellitus (GDM). There is, however, limited research regarding the relationship between advancing pregnancy, maternal adipokine profile, insulin resistance and the development of GDM. Furthermore, no studies have investigated these parameters in women with a history of GDM who are at the highest risk of recurrence. This study examined the circulating concentrations of a number of adipokines associated with insulin resistance at two points in pregnancy, and determined whether they were altered in women who developed GDM...
October 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28934090/adipogenic-effects-and-gene-expression-profiling-of-firemaster%C3%A2-550-components-in-human-primary-preadipocytes
#10
Emily W Y Tung, Vian Peshdary, Remi Gagné, Andrea Rowan-Carroll, Carole L Yauk, Adéle Boudreau, Ella Atlas
BACKGROUND: Exposure to flame retardants has been associated with negative health outcomes including metabolic effects. As polybrominated diphenyl ether flame retardants were pulled from commerce, human exposure to new flame retardants such as Firemaster® 550 (FM550) has increased. Although previous studies in murine systems have shown that FM550 and its main components increase adipogenesis, the effects of FM550 in human models have not been elucidated. OBJECTIVES: The objectives of this study were to determine if FM550 and its components are active in human preadipocytes, and to further investigate their mode of action...
September 14, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28921416/mir-17-5p-regulates-differential-expression-of-ncoa3-in-pig-intramuscular-and-subcutaneous-adipose-tissue
#11
Haiyin Han, Shuhua Gu, Weiwei Chu, Wenxing Sun, Wei Wei, Xiaoyong Dang, Ye Tian, Kaiqing Liu, Jie Chen
Fat distribution affects economic value in pork production. Intramuscular adipose tissue (IMAT) improves meat quality, whereas subcutaneous adipose tissue (SCAT) is usually regarded as waste. In the present study, we analyzed IMAT/SCAT (I/S) ratios in each pig. Individuals selected from a population of 1200 Suhuai pigs were divided into two cohorts; those with high I/S ratios and those with low I/S ratios, and correlations between nuclear Receptor Co-activator 3 (NCOA3), a critical gene involved in regulating fat accumulation, and fat distribution were investigated...
September 18, 2017: Lipids
https://www.readbyqxmd.com/read/28904225/endothelial-aplnr-regulates-tissue-fatty-acid-uptake-and-is-essential-for-apelin-s-glucose-lowering-effects
#12
Cheol Hwangbo, Jingxia Wu, Irinna Papangeli, Takaomi Adachi, Bikram Sharma, Saejeong Park, Lina Zhao, Hyekyung Ju, Gwang-Woong Go, Guoliang Cui, Mohammed Inayathullah, Judith K Job, Jayakumar Rajadas, Stephanie L Kwei, Ming O Li, Alan R Morrison, Thomas Quertermous, Arya Mani, Kristy Red-Horse, Hyung J Chun
Treatment of type 2 diabetes mellitus continues to pose an important clinical challenge, with most existing therapies lacking demonstrable ability to improve cardiovascular outcomes. The atheroprotective peptide apelin (APLN) enhances glucose utilization and improves insulin sensitivity. However, the mechanism of these effects remains poorly defined. We demonstrate that the expression of APLNR (APJ/AGTRL1), the only known receptor for apelin, is predominantly restricted to the endothelial cells (ECs) of multiple adult metabolic organs, including skeletal muscle and adipose tissue...
September 13, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28903937/ectopic-fatty-acid-binding-protein-4-expression-in-the-vascular-endothelium-is-involved-in-neointima-formation-after-vascular-injury
#13
Takahiro Fuseya, Masato Furuhashi, Megumi Matsumoto, Yuki Watanabe, Kyoko Hoshina, Tomohiro Mita, Shutaro Ishimura, Marenao Tanaka, Tetsuji Miura
BACKGROUND: Fatty acid-binding protein 4 (FABP4) is expressed in adipocytes, macrophages, and endothelial cells of capillaries but not arteries. FABP4 is secreted from adipocytes in association with lipolysis, and an elevated circulating FABP4 level is associated with obesity, insulin resistance, and atherosclerosis. However, little is known about the link between FABP4 and endovascular injury. We investigated the involvement of ectopic FABP4 expression in endothelial cells in neointima hyperplasia after vascular injury...
September 13, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28893569/fatty-acid-binding-protein-4-promotes-epithelial-mesenchymal-transition-in-cervical-squamous-cell-carcinoma-through-akt-gsk3%C3%AE-snail-signaling-pathway
#14
Jiangbo Jin, Ziyu Zhang, Song Zhang, Xinyu Chen, Zhen Chen, Ping Hu, Jianbin Wang, Caifeng Xie
Fatty acid binding protein 4 (FABP4) is a member of the fatty acid binding protein family which involved in a variety of biological cellular processes, including tumorigenesis. However, the role of this key adipokine in cervical cancer is still unclear. In this study, we explored the function of FABP4 in cervical cancer and the underlying molecular mechanisms. FABP4 was specifically elevated in tissue samples from patients with cervical squamous cell carcinoma (CSCC) but not with cervical adenocarcinoma, and the level of FABP4 was correlated with E-cadherin and Vimentin expression...
September 8, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28887384/constitutive-activation-of-p46jnk2-is-indispensable-for-c-ebp%C3%AE-induction-in-the-initial-stage-of-adipogenic-differentiation
#15
Joji Kusuyama, Tomokazu Ohnishi, Kenjiro Bandow, Muhammad Subhan Amir, Kaori Shima, Ichiro Semba, Tetsuya Matsuguchi
Adipogenic differentiation plays a vital role in energy homeostasis and endocrine system. Several transcription factors, including peroxisome proliferator-activated receptor gamma 2 and CCAAT-enhancer-binding protein (C/EBP) α, β, and δ, are important for the process, whereas the stage-specific intracellular signal transduction regulating the onset of adipogenesis remains enigmatic. Here, we explored the functional role of c-jun N-terminal kinases (JNKs) in adipogenic differentiation using in vitro differentiation models of 3T3-L1 cells and primary adipo-progenitor cells...
October 5, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28886690/transcriptome-profiling-of-antiviral-immune-and-dietary-fatty-acid-dependent-responses-of-atlantic-salmon-macrophage-like-cells
#16
Khalil Eslamloo, Xi Xue, Jennifer R Hall, Nicole C Smith, Albert Caballero-Solares, Christopher C Parrish, Richard G Taylor, Matthew L Rise
BACKGROUND: Due to the limited availability and high cost of fish oil in the face of increasing aquaculture production, there is a need to reduce usage of fish oil in aquafeeds without compromising farm fish health. Therefore, the present study was conducted to determine if different levels of vegetable and fish oils can alter antiviral responses of salmon macrophage-like cells (MLCs). Atlantic salmon (Salmo salar) were fed diets containing 7.4% (FO7) or 5.1% (FO5) fish oil. These diets were designed to be relatively low in EPA + DHA (i...
September 8, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28875223/circulating-adipokines-are-associated-with-pre-eclampsia-in-women-with-type-1-diabetes
#17
Clare B Kelly, Michelle B Hookham, Jeremy Y Yu, Samuel M Lockhart, Mei Du, Alicia J Jenkins, Alison Nankervis, Kristian F Hanssen, Tore Henriksen, Satish K Garg, Samar M Hammad, James A Scardo, Christopher E Aston, Christopher C Patterson, Timothy J Lyons
AIMS/HYPOTHESIS: The incidence of pre-eclampsia, a multisystem disorder of pregnancy, is fourfold higher in type 1 diabetic than non-diabetic women; it is also increased in women with features of the metabolic syndrome and insulin resistance. In a prospective study of pregnant women with type 1 diabetes, we measured plasma levels of adipokines known to be associated with insulin resistance: leptin, fatty acid binding protein 4 (FABP4), adiponectin (total and high molecular weight [HMW]; also known as high molecular mass), retinol binding protein 4 (RBP4) and resistin and evaluated associations with the subsequent development of pre-eclampsia...
September 5, 2017: Diabetologia
https://www.readbyqxmd.com/read/28864004/maternal-bmi-and-gestational-diabetes-alter-placental-lipid-transporters-and-fatty-acid-composition
#18
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/28842252/e3-ubiquitin-ligase-dtx4-is-required-for-adipogenic-differentiation-in-3t3-l1-preadipocytes-cell-line
#19
Zonggui Wang, Zhong Dai, Yaqiong Pan, Simin Wu, Zhengli Li, Changqing Zuo
Deltex4 (DTX4) is a member of the Deltex family of proteins. To date several lines of evidences suggest that Deltex family of proteins is closely linked to cell development and cell differentiation. However, little is known about the role of DTX4 in adipogenic differentiation. In this study, we assessed the impact of DTX4 on adipogenic differentiation in vitro, we found that DTX4 protein expression gradually increased during adipogenic differentiation of 3T3-L1 preadipocytes cell line. While DTX4 stable knockdown by recombinant shRNA lentivirus (sh-DTX4) notably reduced the number of lipid droplets and down-regulated the expression of adipogenic transcription factors C/EBPα and PPARγ and adipogenic markers gene FABP4 and Adipsin...
August 23, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28823103/bariatric-surgery-is-accompanied-by-changes-in-extracellular-vesicle-associated-and-plasma-fatty-acid-binding-protein-4
#20
Justyna K Witczak, Thinzar Min, Sarah L Prior, Jeffrey W Stephens, Philip E James, Aled Rees
BACKGROUND: Bariatric surgery markedly reduces fat mass with beneficial effects on cardiometabolic health but the mechanisms involved are not fully understood. Extracellular vesicles (EVs) are secreted by a variety of cells, including adipocytes, and may mediate some of these benefits. However, the effects of bariatric surgery on circulating EVs are unclear. METHODS: Concentration of plasma EVs isolated by ultracentrifugation at baseline, 1 and 6 months post-bariatric surgery (n = 20) was established using Nanoparticle Tracking Analysis...
August 19, 2017: Obesity Surgery
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