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Marwa E Elsherbiny, Hua Chen, Marwan Emara, Roseline Godbout
Glioblastoma multiforme (GBM) is a highly infiltrative brain cancer with a dismal prognosis. High levels of brain fatty acid binding protein (B-FABP) are associated with increased migration/infiltration in GBM cells, with a high ratio of arachidonic acid (AA) to docosahexaenoic acid (DHA) driving B-FABP-mediated migration. Since several protein kinase Cs (PKCs) are overexpressed in GBM and linked to migration, we explored a possible relationship between B-FABP and levels/activity of different PKCs, as a function of AA and DHA supplementation...
April 6, 2018: Nutrients
Jan F C Glatz, Joost J F P Luiken
The widely expressed transmembrane glycoprotein CD36, a scavenger receptor class B protein (SR-B2), serves many functions in lipid metabolism and signaling. Here, we review CD36's role in facilitating cellular long-chain fatty-acid uptake across the plasma membrane, particularly in heart and skeletal muscles. CD36 acts in concert with other membrane proteins, such as peripheral plasma membrane fatty acid-binding protein (FABPpm), and is an intracellular docking site for cytoplasmic FABP (FABPc). The cellular fatty-acid uptake rate is governed primarily by the presence of CD36 at the cell surface, which is regulated by the subcellular vesicular recycling of CD36 from endosomes to the plasma membrane...
April 7, 2018: Journal of Lipid Research
Jun Zeng, Yuwen Zhang, Jiaqing Hao, Yanwen Sun, Shujun Liu, David A Bernlohr, Edward R Sauter, Margot P Cleary, Jill Suttles, Bing Li
Obesity is associated with elevated levels of free fatty acids (FAs) and proinflammatory CD11c+ macrophages. However, whether and how free FAs contribute to CD11c+ macrophage differentiation and proinflammatory functions remain unclear. Here we report that dietary saturated FAs, but not unsaturated FAs, promoted the differentiation and function of CD11c+ macrophages. Specifically, we demonstrated that stearic acid (SA) significantly induced CD11c expression in monocytes through activation of the nuclear retinoid acid receptor...
April 6, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
Aynur Sahin, Damla Aydin Altay, Selim Demir, Esin Yulug, Ahmet Menteşe, Ozgur Tatli, Yunus Karaca, Senol Ardic, Abdulkadir Gunduz, Suleyman Turedi
OBJECTIVES: The aim of this study is to compare the diagnostic values of plasma levels of vascular adhesion protein-1 (VAP-1) and intestinal fatty acid-binding protein (I-FABP) for diagnosing acute mesenteric ischemia (AMI). METHODS: The study used a randomized, controlled experimental design. Forty-two female Sprague-Dawley rats were divided into three control groups and three ischemia groups. Plasma VAP-1 and I-FABP levels were measured, and the extent of ischemic damage was determined using a histopathological damage score in terminal ileum tissue samples...
March 29, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
Rupak Shivakoti, Nikhil Gupte, Nathella Pavan Kumar, Vandana Kulkarni, Usha Balasubramanian, Ramesh Bhosale, Pradeep Sambrey, Aarti Kinikar, Renu Bharadwaj, Sandesh Patil, Sadaf Inamdar, Nishi Suryavanshi, Subash Babu, Robert C Bollinger, Amita Gupta
Background: Preterm birth (PTB) rates are high in HIV-infected populations, even when on treatment. Still, only a subset of all births in HIV-infected pregnant women result in PTB, suggesting risk factors other than HIV infection itself are also important. Inflammation is a known risk factor in uninfected populations but their role in HIV-infected population have not been studied; in addition, the immune pathways involved are not clear and non-invasive immune markers with predictive value are lacking...
March 24, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
B Frýbová, A Kokešová, R Vlk, M Rygl
INTRODUCTION: Gastroschisis is the most common malformation among abdominal wall defects with the incidence of 1:45000 live birth neonates. Postoperative care for these patients is very difficult due to the risk of abdominal compartment syndrome. The identification of markers that correlate with bowel damage in gastroschisis may prevent this serious postoperative complication. METHODS: Review of the literature. CONCLUSION: Prenatal ultrasound prediction of bowel damage followed by an appropriate surgical strategy is a possibility of optimizing care and outcomes in gastroschisis patients...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
Daniel S March, Arwel W Jones, Rhys Thatcher, Glen Davison
PURPOSE: Exercise-induced changes in intestinal permeability are exacerbated in the heat. The aim of this study was to determine the effect of 14 days of bovine colostrum (Col) supplementation on intestinal cell damage (plasma intestinal fatty acid-binding protein, I-FABP) and bacterial translocation (plasma bacterial DNA) following exercise in the heat. METHODS: In a double-blind, placebo-controlled, crossover design, 12 males completed two experimental arms (14 days of 20 g/day supplementation with Col or placebo, Plac) consisting of 60 min treadmill running at 70% maximal aerobic capacity (30 °C, 60% relative humidity)...
March 24, 2018: European Journal of Nutrition
John Hamilton, Christopher Koumas, Brendan H Clavin, Matthew Marion, Antonio Figueiredo, Steve Gonzalez, Joseph R O'Rourke, Dale Deutsch, Martin Kaczocha, Samir Haj-Dahmane, Panayotis K Thanos
Inhibition and genetic deletion of fatty acid-binding proteins (FABPs) 5 and 7 have been shown to increase the levels of the endocannabinoid anandamide as well as the related N-acylethanolamine's palmitoylethanolamide and oleoylethanolamide. This study examined the role of these FABPs on forced-swim (FS) behavior and on sucrose consumption in two experiments: (experiment 1) using wild-type (WT) mice treated with the FABP inhibitor SBFI26 or vehicle and (experiment 2) using WT and FABP5/7 deficient mice. Results from experiment 1 showed that acute treatment with SBFI26 did not have any effect on sucrose intake or FS behavior in mice...
March 21, 2018: Behavioural Pharmacology
Yuwen Zhang, Jiaqing Hao, Jun Zeng, Qiang Li, Enyu Rao, Yanwen Sun, Lianliang Liu, Anita Mandal, V Douglas Landers, Rebecca J Morris, Margot P Cleary, Jill Suttles, Bing Li
Skin lipids (e.g. fatty acids) are essential for normal skin functions. Epidermal fatty acid-binding protein (E-FABP) is the predominant FABP expressed in skin epidermis. However, the role of E-FABP in skin homeostasis and pathology remains largely unknown. Herein, we utilized the 7,12-dimethylbenz(a)anthracene (DMBA) and 12-O-tetradecanolyphorbol-13-acetate (TPA)-induced skin tumorigenesis model to assess the role of E-FABP in chemical-induced skin tumorigenesis. Compared to their wild type (WT) littermates, mice deficient in E-FABP, but not adipose FABP (A-FABP), developed more skin tumors with higher incidence...
March 17, 2018: Journal of Investigative Dermatology
Masamichi Sato, Sumito Inoue, Akira Igarashi, Yoshikane Tokairin, Kento Sato, Hiroshi Nakano, Yuki Abe, Maki Kobayashi, Tomomi Kimura, Keiko Yamauchi, Michiko Nishiwaki, Yukihiro Minegishi, Sujeong Yang, Kodai Furuyama, Tomoka Yamamoto, Hiroyoshi Machida, Yoko Shibata
BACKGROUND: The designation of some cardiac-specific proteins as prognostic biomarkers in chronic obstructive pulmonary disease (COPD) exacerbations suggest that the process of exacerbation involves cardiomyocyte injury. Among these cardiac biomarkers, heart-type fatty acid binding protein (h-FABP) is considered a very sensitive diagnostic marker for cardiomyocyte injury and a prognostic marker in chronic heart failure. However, the prognostic usefulness of h-FABP in patients with COPD remains unclear...
March 2018: Respiratory Investigation
Vanesa V Galassi, Marcos A Villarreal, Guillermo G Montich
The fatty acid-binding proteins L-BABP and Rep1-NCXSQ bind to anionic lipid membranes by electrostatic interactions. According to Molecular Dynamics (MD) simulations, the interaction of the protein macrodipole with the membrane electric field is a driving force for protein binding and orientation in the interface. To further explore this hypothesis, we studied the interactions of these proteins with cationic lipid membranes. As in the case of anionic lipid membranes, we found that both proteins, carrying a negative as well as a positive net charge, were bound to the positively charged membrane...
2018: PloS One
Yohta Fukuda, Tsuyoshi Inoue
Though anhydrobiotic tardigrades (micro-animals also known as water bears) possess many genes of secretory abundant heat soluble (SAHS) proteins unique to Tardigrada, their functions are unknown. A previous crystallographic study revealed that a SAHS protein (RvSAHS1) from one of the toughest tardigrades, Ramazzottius varieornatus, has a β-barrel architecture similar to fatty acid binding proteins (FABPs) and two putative ligand binding sites (LBS1 and LBS2) where fatty acids can bind. However, some SAHS proteins such as RvSAHS4 have different sets of amino acid residues at LBS1 and LBS2, implying that they prefer other ligands and have different functions...
March 1, 2018: Protein Science: a Publication of the Protein Society
Amna Klich, Catherine Mercier, Laurent Gerfault, Pierre Grangeat, Corinne Beaulieu, Elodie Degout-Charmette, Tanguy Fortin, Pierre Mahé, Jean-François Giovannelli, Jean-Philippe Charrier, Audrey Giremus, Delphine Maucort-Boulch, Pascal Roy
BACKGROUND: In the field of biomarker validation with mass spectrometry, controlling the technical variability is a critical issue. In selected reaction monitoring (SRM) measurements, this issue provides the opportunity of using variance component analysis to distinguish various sources of variability. However, in case of unbalanced data (unequal number of observations in all factor combinations), the classical methods cannot correctly estimate the various sources of variability, particularly in presence of interaction...
March 1, 2018: BMC Bioinformatics
Jason H Greenberg, Michael Zappitelli, Yaqi Jia, Heather R Thiessen-Philbrook, Christina A de Fontnouvelle, F Perry Wilson, Steven Coca, Prasad Devarajan, Chirag R Parikh
Background As children progress to higher stages of AKI, the risk for adverse outcomes dramatically increases. No reliable methods exist to predict AKI progression in hospitalized children. To determine if biomarkers of inflammation and kidney injury can predict AKI progression, we conducted a three-center prospective cohort study of children undergoing cardiopulmonary bypass. Methods On the first day of serum creatinine-defined AKI, we measured urine biomarkers (neutrophil gelatinase-associated lipocalin [NGAL], IL-18, kidney injury molecule 1, liver fatty acid binding protein [L-FABP], albumin, and cystatin C) and plasma biomarkers (IFN, IL-1, IL-2, IL-4, IL-6, IL-8, IL-10, IL-12, IL-13, TNF- α , NGAL, and cystatin C)...
February 22, 2018: Journal of the American Society of Nephrology: JASN
Kamila Wójcik-Cichy, Anna Piekarska, Elżbieta Jabłonowska
Damage of the mucosal barrier in HIV infection, microbial translocation, and immune activation can persist even in patients on successful antiretroviral therapy (ART) especially advanced late presenters. The aim of this study was to find factors that determine immune activation and bacterial translocation in HIV-infected advanced late presenters on suppressive ART. Forty-three late presenters (CD4 < 200 cells/µl prior to ART) on successful ART (more than 2 years of ART) with optimal and suboptimal CD4 recovery were enrolled into this study...
February 21, 2018: Archivum Immunologiae et Therapiae Experimentalis
Yasuhiko Bando, Hide Sakashita, Fuyoko Taira, Genki Miyake, Yudai Ogasawara, Koji Sakiyama, Yuji Owada, Osamu Amano
Septoclasts are mononuclear spindle-shaped phagocytes with their long processes in uncalcified cartilage matrices and locate adjacent to the capillary endothelium at the chondro-osseous junction of the growth plate. We have previously revealed a selective expression of epidermal-type fatty acid-binding protein (E-FABP/FABP5) in septoclasts. Although, pericytes are known to distribute along capillaries and directly surround their endothelial cells in a situation similar to septoclasts, no clear evidence is available on the relationship between septoclasts and pericytes...
February 20, 2018: Histochemistry and Cell Biology
Stephanie Skuby Chassen, Veronique Ferchaud-Roucher, Madhulika B Gupta, Thomas Jansson, Theresa L Powell
Fatty acids (FA) are critical for fetal brain development and are transferred across the placenta by membrane-bound FA transport proteins (FATP), translocases (FAT/CD36) and cytosolic binding proteins (FABP). The cytosolic protein perilipin-2 aids in neutral lipid storage within lipid droplets. Decreased placental nutrient transport is believed to contribute to intrauterine growth restriction (IUGR); however, IUGR placental lipid transport and metabolism are poorly understood. We hypothesized protein expression of FATPs, FABPs, and perilipin-2 in human placenta is decreased and placental lipid content and incorporation into lipid classes are reduced in IUGR...
February 20, 2018: Clinical Science (1979-)
Masashi Nishida, Hidekazu Kawakatsu, Kenji Hamaoka
BACKGROUND: Recent studies indicated the role of urinary liver-type fatty acid-binding protein (uL-FABP) as a biomarker for kidney injury. However, uL-FABP excretion in patients with relapsing nephrotic syndrome and tubular dysfunction in the pediatric population had not been reported previously. METHODS: We examined uL-FABP level in children with steroid-sensitive nephrotic syndrome (SSNS), in those with tubular dysfunction, and in control subjects. RESULTS: uL-FABP was markedly increased in patients with relapsing SSNS (12...
February 20, 2018: Pediatrics International: Official Journal of the Japan Pediatric Society
B Renaville, N Bacciu, M Lanzoni, F Mossa, E Piasentier
Dietary and organoleptic qualities of pork products are largely influenced by the profiles of fatty acids (FAs) of meat and fat. The objective of this work was to investigate the potential associations between FA profile in subcutaneous adipose (back fat and leg fat) and muscular (longissimus dorsi and biceps femoris) tissues in heavy pigs (n = 129, 9-month-old) with single nucleotide polymorphisms (SNPs) in six candidate genes involved in fat metabolism: Stearoyl-CoA desaturase (SCD), Diacylglycerol acyltransferase 1 and 2 (DGAT1 &DGAT2), Microsomal Triglyceride Transfer Protein (MTTP), Fatty Acid Synthase (FASN) and Heart- fatty acid binding protein (H-FABP)...
February 7, 2018: Meat Science
John Hamilton, Matthew Marion, Antonio Figueiredo, Brendan H Clavin, Dale Deutsch, Martin Kaczocha, Samir Haj-Dahmane, Panayotis K Thanos
Genetic and pharmacological manipulation of endocannabinoid (eCB) signaling has previously been shown to have an important role on the rewarding properties of drugs of abuse, including cocaine. Recently, fatty acid binding proteins (FABPs) have been proposed as intracellular transporters of the endocannabinoid anandamide (AEA) as well as other bioactive lipids to their catabolic enzyme, fatty acid amide hydrolase (FAAH). The role of these transporters in modulating the brains reward system has yet to be investigated...
February 19, 2018: Synapse
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