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https://www.readbyqxmd.com/read/28434357/retinol-binding-protein-4-rbp4-concentration-identifies-v122i-transthyretin-cardiac-amyloidosis
#1
Marios Arvanitis, Steven Simon, Gloria Chan, Denise Fine, Paula Beardsley, Michael LaValley, Daniel Jacobson, Clarissa Koch, John L Berk, Lawreen H Connors, Frederick L Ruberg
No abstract text is available yet for this article.
March 2017: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/28413425/association-of-retinol-binding-protein-4-with-metabolic-syndrome-in-first-degree-relatives-of-type-2-diabetic-patients
#2
Marjan Tabesh, Atsa Noroozi, Masood Amini, Awat Feizi, Sahar Saraf-Bank, Maryam Zare
BACKGROUND: Retinol-binding protein 4 (RBP4) is known to regulate lipid and glucose metabolism and insulin resistance. The influences of RBP4 on metabolic syndrome (MS) are still unclear. The purpose of this study is to evaluate the association between serum levels of RBP4 and MS components in first-degree relations of type 2 diabetic patients. MATERIALS AND METHODS: This cross-sectional study was performed within the framework of the diabetes prevention project in Isfahan...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28400700/serum-retinol-binding-protein-induced-endothelial-inflammation-is-mediated-through-the-activation-of-toll-like-receptor-4
#3
Mei Du, Ashley Martin, Franklin Hays, Jennifer Johnson, Rafal A Farjo, Krysten M Farjo
PURPOSE: Elevation of serum retinol-binding protein 4 (RBP4) induces inflammation in primary human retinal microvascular endothelial cells (HRECs) via a retinol-independent mechanism; thus, it may play a causative role in the development and progression of vascular lesions in diabetic retinopathy (DR). Since HRECs do not express the classical RBP4 receptor, stimulated by retinoic acid gene 6 (STRA6), this study focuses on identifying the endothelial cell receptor and signaling that mediate RBP4-induced inflammation...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28393633/csp-1103-chf5074-stabilizes-human-transthyretin-in-healthy-human-subjects
#4
Lixia Qiang, Yanxia Guan, Xiangshun Li, Li Liu, Yanshuang Mu, Aki Sugano, Yutaka Takaoka, Toshiyuki Sakaeda, Bruno P Imbimbo, Ken-Ichi Yamamura, Shoude Jin, Zhenghua Li
Hereditary amyloid polyneuropathy is a type of protein misfolding disease. Transthyretin (TTR) is a homotetrameric serum protein and TTR tetramer dissociation is the limiting step in amyloid fibril formation. Thus, prevention of TTR dissociation is a promising therapeutic approach and some TTR stabilizers have been approved for the treatment of TTR amyloidosis. CSP-1103 (CHF5074) is a non-steroidal anti-inflammatory derivative that lacks cyclooxygenase inhibitory activity. In vitro, CSP-1103 stabilizes the TTR tetramer by binding to the thyroxine (T4) binding site...
April 10, 2017: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/28373218/hepatic-stellate-cells-limit-hepatocellular-carcinoma-progression-through-the-orphan-receptor-endosialin
#5
Carolin Mogler, Courtney König, Matthias Wieland, Anja Runge, Eva Besemfelder, Dorde Komljenovic, Thomas Longerich, Peter Schirmacher, Hellmut G Augustin
Hepatocellular carcinoma (HCC) is among the most common and deadliest cancers worldwide. A major contributor to HCC progression is the cross talk between tumor cells and the surrounding stroma including activated hepatic stellate cells (HSC). Activation of HSC during liver damage leads to upregulation of the orphan receptor endosialin (CD248), which contributes to regulating the balance of liver regeneration and fibrosis. Based on the established role of endosialin in regulating HSC/hepatocyte cross talk, we hypothesized that HSC-expressed endosialin might similarly affect cell proliferation during hepatocarcinogenesis...
April 3, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28340561/ascorbic-acid-ameliorates-renal-injury-in-a-murine-model-of-contrast-induced-nephropathy
#6
K Rollins, A Noorani, L Janeckova, T Jones, M Griffiths, M P Baker, J R Boyle
BACKGROUND: Contrast induced nephropathy (CIN) is the commonest cause of iatrogenic renal injury and its incidence has increased with the advent of complex endovascular procedures. Evidence suggests that ascorbic acid (AA) has a nephroprotective effect in percutaneous coronary interventions when contrast media are used. A variety of biomarkers (NGAL, NGAL:creatinine, mononuclear cell infiltration, apoptosis and RBP-4) in both the urine and kidney were assayed using a mouse model of CIN in order to determine whether AA can reduce the incidence and/or severity of renal injury...
March 24, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28338737/retinol-binding-protein-4-and-lipids-prospectively-measured-during-early-to-mid-pregnancy-in-relation-to-preeclampsia-and-preterm-birth-risk
#7
Pauline Mendola, Akhgar Ghassabian, James L Mills, Cuilin Zhang, Michael Y Tsai, Aiyi Liu, Edwina H Yeung
BACKGROUND: Maternal retinol-binding protein 4 (RBP4) and lipids may relate to preeclampsia and preterm birth risk but longitudinal data are lacking. This study examines these biomarkers longitudinally during pregnancy in relation to preeclampsia and preterm birth risk. METHODS: Maternal serum samples from the Calcium for Preeclampsia Prevention (CPEP) trial were analyzed at baseline: average 15 gestational weeks; mid-pregnancy: average 27 weeks; and at >34 weeks...
February 16, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28337595/first-trimester-ttr-rbp4-roh-complex-and-angiogenic-factors-in-the-prediction-of-small-for-gestational-age-infant-s-outcome
#8
Arrigo Fruscalzo, Julia Frommer, Ambrogio P Londero, Andrea Henze, Florian J Schweigert, Jerzy-Roch Nofer, Johannes Steinhard, Walter Klockenbusch, Ralf Schmitz, Jens Raila
PURPOSE: To study the role of the TTR-RBP4-ROH complex components (transthyretin, serum retinol binding protein, retinol) and of angiogenic factors PlGF (placental growth factor) and sFlt-1 (soluble fms-like tyrosine kinase-1) in pregnancies complicated by small for gestational age infants (SGA). METHODS: Case control study conducted on maternal serum collected between 11 + 0 to 13 + 6 weeks of gestation. TTR, RBP4, ROH, PlGF and sFlt-1 were measured in SGA patients (birth weight <10%) who delivered at term (n = 37) and before 37 weeks of gestation (n = 17) and in a matched control group with uneventful pregnancies (n = 37)...
March 23, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28336726/proteomic-signature-of-acute-liver-failure-from-discovery-and-verification-in-a-pig-model-to-confirmation-in-humans
#9
Jie Wang, Zeyu Sun, Jing Jiang, Daxian Wu, Xiaoli Liu, Zhongyang Xie, Ermei Chen, Danhua Zhu, Chao Ye, Xiaoqian Zhang, Wenqian Chen, Hongcui Cao, Lanjuan Li
Acute liver failure (ALF) is a fatal condition hallmarked by rapid development. The present study aimed to describe the dynamic alterations of serum proteins associated with ALF development, and to seek for novel biomarkers of ALF. Miniature pigs (n=30) were employed to establish ALF models by infusing D-galactosamine (GALN, 1.3g/kg). A total of 1589 serum proteins were compared in pooled serum samples (n=10) before and 36 hours after GALN administration through label-free quantitation (LFQ) based shotgun proteomics...
March 23, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28332619/retinol-binding-protein-4-levels-and-non-alcoholic-fatty-liver-disease-a-community-based-cross-sectional-study
#10
Xuechen Chen, Tianran Shen, Qing Li, Xu Chen, Yanping Li, Dan Li, Gengdong Chen, Wenhua Ling, Yu-Ming Chen
Previous reports on the association between retinol binding protein 4 (RBP4) and nonalcoholic fatty liver disease (NAFLD) were controversial. This study aimed to investigate the association between the serum RBP4 levels and occurrence of NAFLD in Chinese population. In total, 2938 participants aged 40-75 years were involved in this community-based cross-sectional study. General information, lifestyle factors, serum levels of RBP4 and the presence of NAFLD were determined. Patients with NAFLD had significantly higher concentrations of RBP4 (37...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28329079/sleep-duration-and-cardiometabolic-risk-among-chinese-school-aged-children-do-adipokines-play-a-mediating-role
#11
Lujiao Li, Junling Fu, Xin Ting Yu, Ge Li, Lu Xu, Jinghua Yin, Hong Cheng, Dongqing Hou, Xiaoyuan Zhao, Shan Gao, Wenhui Li, Changhong Li, Struan F A Grant, Mingyao Li, Yi Xiao, Jie Mi, Ming Li
Objective: To assess the associations between sleep duration and cardiometabolic risk factors in Chinese school-aged children and to explore the possible mediating role of adipokines. Methods: Sleep duration was collected in 3,166 children from the Beijing Child and Adolescent Metabolic Syndrome study. Glucose homeostasis and other cardiometabolic risk factors were assessed. Serum adipokines including leptin, total and high-molecular-weight (HMW) adiponectin, resistin, fibroblast growth factor 21 (FGF21) and retinol binding protein 4 (RBP4) were determined...
March 9, 2017: Sleep
https://www.readbyqxmd.com/read/28303117/expression-patterns-and-correlations-with-metabolic-markers-of-zinc-transporters-zip14-and-znt1-in-obesity-and-polycystic-ovary-syndrome
#12
Trine Maxel, Pernille Fog Svendsen, Kamille Smidt, Jesper Krogh Lauridsen, Birgitte Brock, Steen Bønlykke Pedersen, Jørgen Rungby, Agnete Larsen
Polycystic ovary syndrome (PCOS) is associated with infertility, increased androgen levels, and insulin resistance. In adipose tissue, zinc facilitates insulin signaling. Circulating zinc levels are altered in obesity, diabetes, and PCOS; and zinc supplementation can ameliorate metabolic disturbances in PCOS. In adipose tissue, expression of zinc influx transporter ZIP14 varies with body mass index (BMI), clinical markers of metabolic syndrome, and peroxisome proliferator-activated receptor gamma (PPARG). In this study, we investigated expression levels of ZIP14 and PPARG in subcutaneous adipose tissue of 36 PCOS women (17 lean and 19 obese women) compared with 23 healthy controls (7 lean and 16 obese women)...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28262744/identification-of-candidate-diagnostic-serum-biomarkers-for-kawasaki-disease-using-proteomic-analysis
#13
Yayoi Kimura, Masakatsu Yanagimachi, Yoko Ino, Mao Aketagawa, Michie Matsuo, Akiko Okayama, Hiroyuki Shimizu, Kunihiro Oba, Ichiro Morioka, Tomoyuki Imagawa, Tetsuji Kaneko, Shumpei Yokota, Hisashi Hirano, Masaaki Mori
Kawasaki disease (KD) is a systemic vasculitis and childhood febrile disease that can lead to cardiovascular complications. The diagnosis of KD depends on its clinical features, and thus it is sometimes difficult to make a definitive diagnosis. In order to identify diagnostic serum biomarkers for KD, we explored serum KD-related proteins, which differentially expressed during the acute and recovery phases of two patients by mass spectrometry (MS). We identified a total of 1,879 proteins by MS-based proteomic analysis...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28253328/reprogramming-of-the-retinoic-acid-pathway-in-decidualizing-human-endometrial-stromal-cells
#14
Rie Ozaki, Keiji Kuroda, Yuko Ikemoto, Asako Ochiai, Akemi Matsumoto, Jun Kumakiri, Mari Kitade, Atsuo Itakura, Joanne Muter, Jan J Brosens, Satoru Takeda
Upon breaching of the endometrial surface epithelium, the implanting embryo embeds in the decidualizing stroma. Retinoic acid (RA), a metabolite of vitamin A, is an important morphogen during embryonic and fetal development, although the role of the RA pathway in the surrounding decidual cells is not understood. Here we show that decidual transformation of human endometrial stromal cells (HESCs) results in profound reprogramming of the RA signaling and metabolism pathways. Differentiating HESCs downregulate the intracellular carrier proteins CRABP2 and FABP5, responsible for transfer and binding of RA to the nuclear receptors RAR and PPARβ/δ, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28196416/blood-proteomic-profiling-in-inherited-attrm-and-acquired-attrwt-forms-of-transthyretin-associated-cardiac-amyloidosis
#15
Gloria G Chan, Clarissa M Koch, Lawreen H Connors
Transthyretin-associated forms of cardiac amyloidosis are fatal protein misfolding diseases that can be inherited (ATTRm) or acquired (ATTRwt). An accurate diagnosis of ATTR amyloidosis can be challenging as biopsy evidence, usually from the affected organ, is required. Precise biomarkers for ATTR disease identification and monitoring are undiscovered, disease-specific therapeutic options are needed, and the current understanding of ATTR molecular pathogenesis is limited. The aim of this study was to investigate and compare the serum proteomes in ATTRm and ATTRwt cardiac amyloidosis to identify differentially expressed blood proteins that were disease-specific...
February 23, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28196196/identification-of-transthyretin-cardiac-amyloidosis-using-serum-retinol-binding-protein-4-and-a-clinical-prediction-model
#16
Marios Arvanitis, Clarissa M Koch, Gloria G Chan, Celia Torres-Arancivia, Michael P LaValley, Daniel R Jacobson, John L Berk, Lawreen H Connors, Frederick L Ruberg
Importance: Transthyretin cardiac amyloidosis (ATTR) is an underrecognized cause of heart failure (HF) in older individuals, owing in part to difficulty in diagnosis. ATTR can result from substitution of valine for isoleucine at codon 122 of the transthyretin (TTR) gene (V122I), present in 3.43% of African American individuals. Objective: To examine whether serum retinol-binding protein 4 (RBP4), an endogenous TTR ligand, could be used as a diagnostic test for ATTR V122I amyloidosis...
March 1, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28134916/rescue-of-retinal-morphology-and-function-in-a-humanized-mouse-at-the-mouse-retinol-binding-protein-locus
#17
Li Liu, Tomohiro Suzuki, Jingling Shen, Shigeharu Wakana, Kimi Araki, Ken-Ichi Yamamura, Lei Lei, Zhenghua Li
Retinol-binding protein RBP4 is the specific carrier for retinol in the blood. We previously produced a Rbp4-deficient (Rbp4(-/-)) mouse that showed electroretinogram (ERG) abnormalities, accompanied by histological and electron-microscopic changes such as fewer synapses in the inner plexiform layer in the central retina. To address whether human RBP4 gene expression can rescue the phenotypes observed in Rbp4(-/-) mice, we produced a humanized (Rbp4(hRBP4orf/ hRBP4orf)) mouse with a human RBP4 open reading frame in the mouse Rbp4 locus using a Cre-mutant lox recombination system...
April 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28122883/retinol-binding-protein-dependent-cholesterol-uptake-regulates-macrophage-foam-cell-formation-and-promotes-atherosclerosis
#18
Yan Liu, Yuan Zhong, Hongen Chen, Duan Wang, Min Wang, Jing-Song Ou, Min Xia
BACKGROUND: -Retinol binding protein 4 (RBP4) is an adipokine that plays decisive roles in glucose metabolism and insulin sensitivity. Elevated circulating RBP4 levels were reported to be associated with increased risk for cardiovascular disease, but the precise role of RBP4 in atherosclerotic diseases and its mechanisms of action remain elusive. METHODS: -Serum RBP4 levels of 1683 participants from South China were evaluated and the occurrence of major adverse cardiovascular events was followed up for 5 years...
January 25, 2017: Circulation
https://www.readbyqxmd.com/read/28116469/adipokines-may-mediate-the-relationship-between-resting-metabolic-rates-and-bone-mineral-densities-in-obese-women
#19
S Moradi, K Mirzaei, A A Abdurahman, S A Keshavarz
The researchers sought to test the possible link between resting metabolic rate and bone mineral density through four adipokines. Participants with lower resting metabolic rate (RMR) per kilogram demonstrated higher total bone mineral density (BMD), total T-score, and total Z-score. Omentin-1 had a mediatory effect on the relationship between RMR/kg of body weight and bone parameters. INTRODUCTION: The previous results of studies regarding the links between obesity and bone health are controversial...
January 23, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28038989/increased-plasma-rbp4-concentration-in-older-hypertensives-is-related-to-the-decreased-kidney-function-and-the-number-of-antihypertensive-drugs-results-from-the-polsenior-substudy
#20
Marcin Majerczyk, Piotr Choręza, Maria Bożentowicz-Wikarek, Aniceta Brzozowska, Habibullah Arabzada, Aleksander Owczarek, Małgorzata Mossakowska, Tomasz Grodzicki, Tomasz Zdrojewski, Andrzej Więcek, Magdalena Olszanecka-Glinianowicz, Jerzy Chudek
Increased plasma retinol-binding protein 4 (RBP4), a novel adipokine, has been associated in previous studies with obesity, type 2 diabetes, dyslipidemia, hypertension (HT), atherosclerosis, and coronary artery disease. This study aimed to analyze the relationship between HT occurrence and its treatment, and plasma RBP4 concentrations in the older polish population. The study sample consisted of 1728 (890 men and 838 women) PolSenior study participants aged 65 years and older with available plasma samples and NT-proBNP values below 2000 pg/mL...
December 7, 2016: Journal of the American Society of Hypertension: JASH
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