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Fatty acid binding protein

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https://www.readbyqxmd.com/read/28088613/adipocyte-and-epidermal-fatty-acid-binding-protein-serum-concentrations-in-patients-with-lipodystrophy
#1
Konstanze Miehle, Thomas Ebert, Susan Kralisch, Annett Hoffmann, Jürgen Kratzsch, Haiko Schlögl, Michael Stumvoll, Mathias Fasshauer
OBJECTIVE: Lipodystrophy (LD) syndromes are associated with diabetes mellitus, hypertriglyceridemia, and coronary artery disease. One pathogenetic factor of LD is dysregulation of several adipokines. However, the insulin resistance- and dyslipidemia-promoting adipokines adipocyte (AFABP) and epidermal (EFABP) fatty acid-binding protein have not been investigated in non-HIV-associated LD so far. MATERIAL AND METHODS: We performed a cross-sectional analysis of AFABP and EFABP serum concentrations in 37 LD patients and 37 age-, gender-, and body mass index-matched healthy controls...
January 12, 2017: Cytokine
https://www.readbyqxmd.com/read/28088385/flavonoid-derivative-fla-cn-inhibited-adipocyte-differentiation-via-activating-ampk-and-up-regulating-microrna-27-in-3t3-l1-cells
#2
Chun-Chun Gan, Tian-Wen Ni, Yang Yu, Nan Qin, Ying Chen, Mei-Na Jin, Hong-Quan Duan
Fla-CN (3-O-[(E)-4-(4-cyanophenyl)-2-oxobut-3-en-1-yl] kaempferol) is a semi-synthesized flavonoid derivative of tiliroside which exhibited anti-diabetic effect in vivo. Our previous study revealed the role of Fla-CN in anti-obesity and anti-diabetes in vivo, but the underlying mechanism remained to be addressed. The present study aimed to investigate the mechanism of anti-adipogenesis in vitro. Fla-CN markedly inhibited intracellular lipid accumulation in a dose-dependent manner, and the inhibitory effect was mainly limited to the early stage of adipocyte differentiation in vitro...
January 11, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28088260/korean-chungtaejeon-tea-extract-attenuates-body-weight-gain-in-c57bl-6j-lep-ob-ob-mice-and-regulates-adipogenesis-and-lipolysis-in-3t3-l1-adipocytes
#3
Bhesh Raj Sharma, Dong Wook Kim, Dong Young Rhyu
OBJECTIVE: Traditional Korean Chungtaejeon (CTJ) tea is a type of fermented tea, which has received increasing attention in recent years because of its purported health benefits. The present study was designed to investigate the effect and mechanism of CTJ tea extract on body weight gain using C57BL/6J-Lep ob/ob mice and 3T3-L1 adipocytes, respectively. METHODS: The effects of CTJ on cell viability, lipid accumulation, and expression of protein and mRNA were measured in 3T3-L1 adipocytes by using 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide, oil red O staining, Western blotting, and reverse transcriptase-polymerase chain reaction analyses...
January 2017: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28081360/pinus-densiflora-bark-extract-pinexol-decreased-adiposity-in-mice-by-down-regulation-of-hepatic-de-novo-lipogenesis-and-adipogenesis-in-white-adipose-tissue
#4
Hyemyoung Ahn, Gwang-Woong Go
PineXol, extracted from Korean red pine bark, has beneficial effects, such as antioxidant, anti3 inflammatory, and anti-lipogenic activities in vitro. We tested the hypothesis that PineXol supplementation could have anti-obesity effects on mice fed a high-fat diet (HFD). Four-week old male C57BL/6 mice were fed normal chow (18% kcal from fat) or HFD (60% kcal from fat). HFD-fed animals were also subjected to PineXol treatment at a dose of 10 or 50 mg/kg body weight (BW) (PX10 or PX50, respectively) body weight...
January 12, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28081037/higher-cd163-levels-are-associated-with-insulin-resistance-in-hepatitis-c-virus-infected-and-hiv-infected-adults
#5
Michael Reid, Yifei Ma, Rebecca Scherzer, Jennifer C Price, Audrey L French, Michael W Plankey, Carl Grunfeld, Phyllis C Tien
OBJECTIVES: HIV/hepatitis C virus (HCV) coinfection is associated with insulin resistance, but the mechanism is unclear. We hypothesized that intestinal epithelial damage and the consequent monocyte/macrophage activation and inflammation explain this perturbation. DESIGN: Cross-sectional study of 519 adults (220 HIV+/HCV-; 64 HIV-/HCV+; 89 HIV+/HCV+; 146 HIV-/HCV-). METHODS: We used multivariable linear regression to evaluate associations of HIV and HCV with the homeostasis model assessment of insulin resistance (HOMA-IR) and if intestinal fatty (FA) acid binding protein (I-FABP, a marker of gut epithelial integrity), soluble CD14 (sCD14) and soluble CD163 (sCD163) (markers of monocyte/macrophage activation), and IL-6 (an inflammatory cytokine) mediated this association...
January 28, 2017: AIDS
https://www.readbyqxmd.com/read/28079534/practical-efficacy-of-olmesartan-versus-azilsartan-in-patients-with-hypertension-a-multicenter-randomized-controlled-trial-muscat-4-study
#6
Yuki Kakio, Haruhito A Uchida, Ryoko Umebayashi, Hidemi Takeuchi, Yuka Okuyama, Yoshihisa Hanayama, Jun Wada
BACKGROUND: Olmesartan and azilsartan, angiotensin II receptor blockers (ARBs), are expected to decrease blood pressure more than the other ARBs. We conducted randomized-controlled trials to compare the practical efficacy of olmesartan with azilsartan. METHODS: Eighty-four patients treated with the conventional ARBs for more than 3 months were assigned randomly to receive either 20 mg of olmesartan (olmesartan medoxomil, OL group) or 20 mg of azilsartan (azilsartan, not azilsartan medoxomil, AZ group) once daily for 16 weeks...
January 10, 2017: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/28077344/detection-of-h-fabp-heart-type-fatty-acid-binding-protein-levels-in-diabetic-ketoacidosis-and-identification-of-early-cardiac-effects-of-ketoacidosis
#7
Fatma Hilal Yılmaz, Sevil Arı Yuca, Hüsamettin Vatansev, Emine Ayça Cimbek, Yaşar Şen, İsa Yılmaz, Fikret Akyürek, Derya Arslan, Derya Çimen, Alaadin Yorulmaz
OBJECTIVE: This is study aims to measure the level of serum heart-type fatty acid binding protein (h-FABP) in patients presenting with diabetic ketoacidosis (DKA) and diabetic ketosis (DK) and to determine its role in identifying early period cardiac ischemia. METHODS: This prospective study included 35 patients diagnosed with DKA, 20 patients diagnosed with DK, and 20 control subjects.The h-FABP, creatine kinase-MB (CK-MB), and troponin-I levels were studied in patients with DKA and DK as well as in the control group at the time of presentation...
January 12, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28077335/omega-3-fatty-acids-regulate-nlrp3-inflammasome-activation-and-prevent-behavior-deficits-after-traumatic-brain-injury
#8
Chao Lin, Honglu Chao, Zheng Li, Xiupeng Xu, Yinlong Liu, Zhongyuan Bao, Lijun Hou, Yan Liu, Xiaoming Wang, Yongping You, Ning Liu, Jing Ji
Omega-3 fatty acids (ω-3 FAs) attenuate inflammation and improve neurological outcome in response to traumatic brain injury (TBI), but the specific anti-inflammatory mechanisms remain to be elucidated. Here we found that NLRP3 inflammasome and subsequent pro-inflammatory cytokines were activated in human brains after TBI. Rats treated with ω-3 FAs had significantly less TBI-induced caspase-1 cleavage and IL-1β secretion than those with vehicle. G protein-coupled receptor 40 (GPR40) was observed to be involved in this anti-inflammation...
January 8, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28076311/biomarkers-of-acute-kidney-injury-the-pathway-from-discovery-to-clinical-adoption
#9
Kianoush Kashani, Wisit Cheungpasitporn, Claudio Ronco
Acute kidney injury (AKI) is a common complication of critical illnesses and has a significant impact on outcomes, including mortality and morbidities. Unfortunately, apart from prophylactic measures, no effective treatment for this syndrome is known. Therefore, early recognition of AKI not only can provide better opportunities for preventive interventions, but also opens many gates for research and development of effective therapeutic options. Over the last few years, several new AKI biomarkers have been discovered and validated to improve early detection, differential diagnosis, and differentiation of patients into risk groups for progressive renal failure, need for renal replacement therapy (RRT), or death...
January 11, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28074335/clinical-effects-of-topiroxostat-on-renal-and-endothelial-function-in-a-patient-with-chronic-kidney-disease-and-hyperuricemic-arteriolopathy-a-case-report
#10
Atsushi Tanaka, Tsukasa Nakamura, Eiichi Sato, Koichi Node
Hyperuricemia is associated with the progression of chronic kidney disease (CKD) and cardiovascular diseases. Topiroxostat, a selective xanthine oxidase inhibitor, effectively reduces serum uric acid (UA) levels and urinary albumin excretion (UAE) in CKD patients. A 50-year-old Japanese man was referred to our hospital due to albuminuria and hyperuricemia, and renal biopsy showed a typical hyperuricemic arteriolopathy. Treatment with topiroxostat decreased serum UA levels (9.2 mg/dL at baseline to 6.4 mg/dL after 6 months), UAE (388 to 88 mg/g...
January 10, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28073414/-protective-effect-of-saccharomyces-boulardii-against-intestinal-mucosal-barrier-injury-in-rats-with-nonalcoholic-fatty-liver-disease
#11
Y T Liu, Y Q Li, Y Z Wang
Objective: To investigate the protective effect of Saccharomyces boulardii against intestinal mucosal barrier injury in rats with nonalcoholic fatty liver disease (NAFLD). Methods: A total of 36 healthy male Sprague-Dawley rats with a mean body weight of 180±20 g were randomly divided into control group, model group, and treatment group, with 12 rats in each group, after adaptive feeding for 1 week. The rats in the control group were given basic feed, and those in the model group and treatment group were given high-fat feed...
December 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28069576/dysbiosis-and-zonulin-upregulation-alter-gut-epithelial-and-vascular-barriers-in-patients-with-ankylosing-spondylitis
#12
Francesco Ciccia, Giuliana Guggino, Aroldo Rizzo, Riccardo Alessandro, Michele Maria Luchetti, Simon Milling, Laura Saieva, Heleen Cypers, Tommaso Stampone, Paola Di Benedetto, Armando Gabrielli, Alessio Fasano, Dirk Elewaut, Giovanni Triolo
BACKGROUND: Dysbiosis has been recently demonstrated in patients with ankylosing spondylitis (AS) but its implications in the modulation of intestinal immune responses have never been studied. The aim of this study was to investigate the role of ileal bacteria in modulating local and systemic immune responses in AS. METHODS: Ileal biopsies were obtained from 50 HLA-B27(+) patients with AS and 20 normal subjects. Silver stain was used to visualise bacteria. Ileal expression of tight and adherens junction proteins was investigated by TaqMan real-time (RT)-PCR and immunohistochemistry...
January 9, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28069524/atg14-facilitated-lipophagy-in-cancer-cells-induce-er-stress-mediated-mitoptosis-through-a-ros-dependent-pathway
#13
Subhadip Mukhopadhyay, Isabel R Schlaepfer, Bryan C Bergman, Prashanta Kumar Panda, Prakash Priyadarshi Praharaj, Prajna Paramita Naik, Rajesh Agarwal, Sujit Kumar Bhutia
Understanding the dynamics of autophagy and apoptosis crosstalk in cancer progression remains a challenging task. Here, we reported how the autophagy protein ATG14 induces lipophagy-mediated mitochondrial apoptosis. The overexpression of ATG14 in HeLa cells inhibited cell viability and increased mitochondrial apoptosis and endoplasmic reticulum (ER) stress. Furthermore, inhibition of this ATG14-induced autophagy promoted apoptosis. ATG14 overexpression resulted in the accumulation of stearic acid and oleic acid free fatty acids (FFA), with a concomitant decrease in the number of lipid droplets...
January 6, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28064376/docking-and-molecular-dynamics-studies-on-triclosan-derivatives-binding-to-fabi
#14
Xuyun Yang, Junrui Lu, Ming Ying, Jiangbei Mu, Peichun Li, Yue Liu
FabI, enoyl-ACP reductase (ENR), is the rate-limiting enzyme in the last step for fatty acids biosynthesis in many bacteria. Triclosan (TCL) is a commercial bactericide, and as a FabI inhibitor, it can depress the substrate (trans-2-enoyl-ACP) binding with FabI to hinder the fatty acid synthesis. The structure-activity relationship between TCL derivatives and FabI protein has already been acknowledged, however, their combination at the molecular level has never been investigated. This paper uses the computer-aided approaches, such as molecular docking, molecular dynamics simulation, and binding free energy calculation based on the molecular mechanics/Poisson-Bolzmann surface area (MM/PBSA) method to illustrate the interaction rules of TCL derivatives with FabI and guide the development of new derivatives...
January 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28063498/preparation-of-the-full-set-of-recombinant-mouse-and-human-secreted-phospholipases-a2
#15
F Ghomashchi, V Brglez, C Payré, L Jeammet, S Bezzine, M H Gelb, G Lambeau
A family of 14-20kDa, disulfide-rich, calcium-dependent secreted phospholipases A2 (sPLA2s) that release fatty acids from the sn-2 position of glycerophospholipids can be found in mammals. They have a diverse array of tissue distribution and biological functions. In this chapter we provide detailed protocols for production of nearly all of the mouse and human sPLA2s mainly by expression in bacteria and in vitro refolding or by expression in insect cells. High-resolution mass spectrometry and enzymatic assays were, respectively, used to show that all disulfides are formed and that the enzymes are active, strongly suggesting that each sPLA2 was prepared in the structurally native form...
2017: Methods in Enzymology
https://www.readbyqxmd.com/read/28063188/utility-of-urinary-tubular-markers-for-monitoring-chronic-tubulointerstitial-injury-after-ischemia-reperfusion
#16
Daisuke Ichikawa, Atsuko Kamijo-Ikemori, Takeshi Sugaya, Keiichi Ohata, Mikako Hisamichi, Seiko Hoshino, Kenjiro Kimura, Yugo Shibagaki
BACKGROUND: The aim of this study was to elucidate whether urinary tubular markers during the chronic phase of acute kidney injury (AKI) are associated with chronic tubulointerstitial damage. METHODS: Male human L-type fatty acid binding protein (L-FABP) chromosomal transgenic (Tg) mice underwent ischemic reperfusion (I/R) injury via renal pedicle clamping for either 10 min or 20 min. Contralateral nephrectomy was performed at the time of tissue reperfusion...
January 7, 2017: Nephrology
https://www.readbyqxmd.com/read/28057583/the-molecular-features-of-uncoupling-protein-1-support-a-conventional-mitochondrial-carrier-like-mechanism
#17
REVIEW
Paul G Crichton, Yang Lee, Edmund R S Kunji
Uncoupling protein 1 (UCP1) is an integral membrane protein found in the mitochondrial inner membrane of brown adipose tissue, and facilitates the process of non-shivering thermogenesis in mammals. Its activation by fatty acids, which overcomes its inhibition by purine nucleotides, leads to an increase in the proton conductance of the inner mitochondrial membrane, short-circuiting the mitochondrion to produce heat rather than ATP. Despite 40 years of intense research, the underlying molecular mechanism of UCP1 is still under debate...
January 2, 2017: Biochimie
https://www.readbyqxmd.com/read/28053142/differences-in-the-secretion-and-transport-of-wnt-proteins
#18
Shinji Takada, Sayumi Fujimori, Takuma Shinozuka, Ritsuko Takada, Yusuke Mii
During the last three decades, our understanding about Wnt signaling has progressed greatly, especially with regards to the molecular mechanism of intracellular transmission of this signaling, as well as its physiological roles. In parallel, the molecular nature of Wnt proteins has gradually but surely been clarified. Wnt proteins are post-translationaly modified with fatty acid and glycosaminoglycans, resulting in constraint of the 3D structure and behavior of the proteins. Specific binding proteins or extracellular vesicles, which appear to shield the lipid moiety from the aquatic environment, enable Wnt proteins to be transported in the extracellular space...
January 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/28053093/catalytic-determinants-of-alkene-production-by-the-cytochrome-p450-peroxygenase-oletje
#19
Sarah Matthews, James D Belcher, Kang Lan Tee, Hazel M Girvan, Kirsty J McLean, Stephen Ej Rigby, Colin W Levy, David Leys, David A Parker, Richard T Blankley, Andrew W Munro
The Jeotgalicoccus sp. peroxygenase cytochrome P450 OleTJE (CYP152L1) is a hydrogen peroxide-driven oxidase that catalyzes oxidative decarboxylation of fatty acids, producing terminal alkenes with applications as fine chemicals and biofuels. Understanding mechanisms that favor decarboxylation over fatty acid hydroxylation in OleTJE could enable protein engineering to improve catalysis or to introduce decarboxylation activity into P450s with different substrate preferences. In this manuscript, we have focused on OleTJE active site residues Phe79, His85 and Arg245 to interrogate their roles in substrate binding and catalytic activity...
January 4, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28051918/genetic-variation-in-fabp4-and-evaluation-of-its-effects-on-beef-cattle-fat-content
#20
Daniel E Goszczynski, Juliana Papaleo-Mazzucco, María V Ripoli, Edgardo L Villarreal, Andrés Rogberg-Muñoz, Carlos A Mezzadra, Lilia M Melucci, Guillermo Giovambattista
FABP4 is a protein primarily expressed in adipocytes and macrophages that plays a key role in fatty acid trafficking and lipid hydrolysis. FABP4 gene polymorphisms have been associated with meat quality traits in cattle, mostly in Asian breeds under feedlot conditions. The objectives of this work were to characterize FABP4 genetic variation in several worldwide cattle breeds and evaluate possible genotype effects on fat content in a pasture-fed crossbred (Angus-Hereford-Limousin) population. We re-sequenced 43 unrelated animals from nine cattle breeds (Angus, Brahman, Creole, Hereford, Holstein, Limousin, Nelore, Shorthorn, and Wagyu) and obtained 22 single nucleotide polymorphisms (SNPs) over 3,164 bp, including four novel polymorphisms...
January 4, 2017: Animal Biotechnology
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