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Gunasekaran A, Devette C, Levin S, Chaaban H. Biomarkers of Necrotizing Enterocolitis: The Search Continues. Clin Perinatol 2022; 49:181-194. [PMID: 35210000 DOI: 10.1016/j.clp.2021.11.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Necrotizing enterocolitis (NEC) is the most common gastrointestinal (GI) emergency in the neonatal intensive care unit. Despite advances in medical care, mortality and morbidity from NEC have not changed. This is likely due to the lack of a clear understanding of this multifactorial disease, and reliable biomarkers for accurate diagnosis of NEC. Currently, the diagnosis of NEC is made by a combination of nonspecific clinical signs, symptoms, and radiological findings. Though biomarkers have been studied extensively, none offer an acceptable sensitivity or specificity to be used. This review will focus on the available literature on biomarkers for preterm NEC, acknowledging the limitations in studies including the variability of inclusion criteria, and most importantly, the lack of gold standard case definition for NEC.
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Affiliation(s)
- Aarthi Gunasekaran
- Neonatal-Perinatal Medicine, The University of Oklahoma Health Sciences Center, 1200 N Everett Drive, Oklahoma City, OK 73104, USA
| | - Christa Devette
- Department of Pediatrics, The University of Oklahoma Health Sciences Center, 1200 N Everett Drive, Oklahoma City, OK 73104, USA.
| | - Samuel Levin
- Neonatal-Perinatal Medicine, The University of Oklahoma Health Sciences Center, 1200 N Everett Drive, Oklahoma City, OK 73104, USA.
| | - Hala Chaaban
- Neonatal-Perinatal Medicine, The University of Oklahoma Health Sciences Center, 1200 N Everett Drive, Oklahoma City, OK 73104, USA.
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Valizadeh M, Aghasizadeh M, Saberi-Karimian M, Safari M, Rohban M, Bana HS, Zare-Feyzabadi R, Tavakkol Afshari HS, Moradi A, Ahangari N, Hashemi M, Nematy M, Bahre EA, Aghaei-Bakhtiari SH, Ghazizadeh H, Esmaily H, Ferns GA, Pasdar A, Ghayour-Mobarhan M. Association of macro-and micro-nutrients dietary intakes with rs2241883 genetic variants of FABP 1 gene in MASHAD study population. Clin Nutr ESPEN 2021; 45:262-266. [PMID: 34620327 DOI: 10.1016/j.clnesp.2021.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/25/2021] [Accepted: 08/23/2021] [Indexed: 01/19/2023]
Abstract
INTRODUCTION There is a relationship between macro-nutrient-intakes and the genes implicated in lipid metabolism. In this study, we assessed the association between macro-and micro-nutrients dietary intakes with rs2241883 genetic variants of the FABP1 gene. METHODS For this cross-sectional study 2737 subjects (including 2203 subjects with dyslipidemia and 534 healthy volunteers) were enrolled as part of the Mashhad Stroke and Heart Atherosclerotic Disorder (MASHAD) study cohort. Dyslipidemia was defined based on the National Cholesterol Education Program Adult Treatment Panel III (NCEP ATP III). A NanoDrop®-1000 instrument was used to do the quantitation of DNA. The rs2241883 polymorphisms were genotyped using double ARMs PCR reactions. Genotyping reagents were obtained from Applied Biosystems. Dietary intake was evaluated using a food frequency questionnaire (FFQ) and validated by 2 consecutive 24-h food recalls. RESULTS The results showed no significant association between subjects with and without dyslipidemia (P > 0.05), except for the zinc to copper ratio, the value for which was higher in the subjects with dyslipidemia (4.78 (1.62)) when compared to subjects without dyslipidemia (4.68 (1.82)) (p = 0.05). Using different genetic models we found that zinc and copper were significantly different in the additive (p = 0.01) and dominant (p = 0.01) genetic models. Although, this association was no longer significant after adjusting for confounding factors. CONCLUSIONS There were no associations between macro-and micro-nutrient dietary intakes with rs2241883 genetic variants after adjusting for confounding factors in the MASHAD study population.
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Affiliation(s)
- Mohsen Valizadeh
- Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maliheh Aghasizadeh
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Saberi-Karimian
- Endoscopic and Minimally Invasive Surgery Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mina Safari
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohadese Rohban
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamideh Safarian Bana
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Zare-Feyzabadi
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Ali Moradi
- Department of Biology, Ashkezar Branch, Islamic Azad University, Mashhad, Iran
| | - Najmeh Ahangari
- Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Hashemi
- Department of Clinical Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Nematy
- Department of Clinical Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ensieh Akbarpour Bahre
- Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Hamid Aghaei-Bakhtiari
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamideh Ghazizadeh
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Habibollah Esmaily
- Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Brighton & Sussex Medical School, Division of Medical Education, Falmer, Brighton, Sussex, BN1 9PH, UK
| | - Alireza Pasdar
- Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Bioinformatics Research Group, Mashhad University of Medical Sciences, Mashhad, Iran; Division of Applied Medicine, Medical School, University of Aberdeen, Foresterhill, Aberdeen, UK.
| | - Majid Ghayour-Mobarhan
- International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran.
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Zare-Feyzabadi R, Mozaffari M, Ghayour-Mobarhan M, Valizadeh M. FABP1 gene variant associated with risk of metabolic syndrome. Comb Chem High Throughput Screen 2021; 25:1355-1360. [PMID: 34082672 DOI: 10.2174/1386207324666210603114434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 02/23/2021] [Accepted: 03/07/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Metabolic Syndrome (MetS) is defined by a clustering of metabolic abnormalities associated with an increased risk of cardiovascular disease and type 2 diabetes mellitus. There has been an increasing interest in the associations of genetic variants involved in diabetes and obesity in the FABP1 pathway. The relationship between the rs2241883 polymorphism of FABP1 and risk of MetS remains unclear. OBJECTIVE We aimed to examine the association between this genetic polymorphism and the presence of MetS and its constituent factors. METHODS A total of 942 participants were recruited as part of the Mashhad Stroke and Heart Atherosclerosis Disorders (MASHAD study) Cohort. Patients with MetS were identified using the International Diabetes Federation (IDF) criteria (n=406) and those without MetS (n=536) were also recruited. DNA was extracted from peripheral blood samples and used for genotyping of the FABP1 rs2241883T/C polymorphism using Tetra-Amplification Refractory Mutation System Polymerase Chain Reaction (Tetra-ARMS PCR). Genetic analysis was confirmed by gel electrophoresis and DNA sequencing. RESULTS Using both univariate and multivariate analyses after adjusting for age, sex and physical activity, carriers of C allele (CT/CC genotypes) in FABP1 variant were related to an increased risk of MetS, compared to non-carriers (OR: 1.38, 95%CI: 1.04,1.82, p=0.026). CONCLUSION The present study shows that C allele in the FABP1 variant can be associated with an increased risk of MetS. The evaluation of these factors in a larger population may help further confirm these findings.
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Affiliation(s)
- Reza Zare-Feyzabadi
- Department of Chemistry, Shahrood Branch, Islamic Azad University, Shahrood. Iran
| | - Majid Mozaffari
- Department of Chemistry, Shahrood Branch, Islamic Azad University, Shahrood. Iran
| | - Majid Ghayour-Mobarhan
- Metabolic Syndrome Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad. Iran
| | - Mohsen Valizadeh
- Metabolic Syndrome Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad. Iran
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Holloway EM, Czerwinski M, Tsai YH, Wu JH, Wu A, Childs CJ, Walton KD, Sweet CW, Yu Q, Glass I, Treutlein B, Camp JG, Spence JR. Mapping Development of the Human Intestinal Niche at Single-Cell Resolution. Cell Stem Cell 2021; 28:568-580.e4. [PMID: 33278341 PMCID: PMC7935765 DOI: 10.1016/j.stem.2020.11.008] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 08/27/2020] [Accepted: 11/11/2020] [Indexed: 12/12/2022]
Abstract
The human intestinal stem cell niche supports self-renewal and epithelial function, but little is known about its development. We used single-cell mRNA sequencing with in situ validation approaches to interrogate human intestinal development from 7-21 weeks post conception, assigning molecular identities and spatial locations to cells and factors that comprise the niche. Smooth muscle cells of the muscularis mucosa, in close proximity to proliferative crypts, are a source of WNT and RSPONDIN ligands, whereas EGF is expressed far from crypts in the villus epithelium. Instead, an PDGFRAHI/F3HI/DLL1HI mesenchymal population lines the crypt-villus axis and is the source of the epidermal growth factor (EGF) family member NEUREGULIN1 (NRG1). In developing intestine enteroid cultures, NRG1, but not EGF, permitted increased cellular diversity via differentiation of secretory lineages. This work highlights the complexities of intestinal EGF/ERBB signaling and delineates key niche cells and signals of the developing intestine.
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Affiliation(s)
- Emily M Holloway
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Michael Czerwinski
- Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Yu-Hwai Tsai
- Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Joshua H Wu
- Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Angeline Wu
- Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Charlie J Childs
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Katherine D Walton
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Caden W Sweet
- Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Qianhui Yu
- Institute of Molecular and Clinical Ophthalmology Basel (IOB), Basel, Switzerland
| | - Ian Glass
- Department of Pediatrics, Genetic Medicine, University of Washington, Seattle, WA 98195, USA
| | - Barbara Treutlein
- Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
| | - J Gray Camp
- Institute of Molecular and Clinical Ophthalmology Basel (IOB), Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Jason R Spence
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Biomedical Engineering, University of Michigan College of Engineering, Ann Arbor, MI, USA.
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Levy E, Beaulieu JF, Spahis S. From Congenital Disorders of Fat Malabsorption to Understanding Intra-Enterocyte Mechanisms Behind Chylomicron Assembly and Secretion. Front Physiol 2021; 12:629222. [PMID: 33584351 PMCID: PMC7873531 DOI: 10.3389/fphys.2021.629222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/06/2021] [Indexed: 11/13/2022] Open
Abstract
During the last two decades, a large body of information on the events responsible for intestinal fat digestion and absorption has been accumulated. In particular, many groups have extensively focused on the absorptive phase in order to highlight the critical "players" and the main mechanisms orchestrating the assembly and secretion of chylomicrons (CM) as essential vehicles of alimentary lipids. The major aim of this article is to review understanding derived from basic science and clinical conditions associated with impaired packaging and export of CM. We have particularly insisted on inborn metabolic pathways in humans as well as on genetically modified animal models (recapitulating pathological features). The ultimate goal of this approach is that "experiments of nature" and in vivo model strategy collectively allow gaining novel mechanistic insight and filling the gap between the underlying genetic defect and the apparent clinical phenotype. Thus, uncovering the cause of disease contributes not only to understanding normal physiologic pathway, but also to capturing disorder onset, progression, treatment and prognosis.
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Affiliation(s)
- Emile Levy
- Research Centre, CHU Ste-Justine, Université de Montréal, Montreal, QC, Canada
- Department of Nutrition, Université de Montréal, Montreal, QC, Canada
- Department of Pediatrics, Université de Montréal, Montreal, QC, Canada
| | - Jean François Beaulieu
- Laboratory of Intestinal Physiopathology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Schohraya Spahis
- Research Centre, CHU Ste-Justine, Université de Montréal, Montreal, QC, Canada
- Department of Nutrition, Université de Montréal, Montreal, QC, Canada
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Mao H, Xu X, Liu H, Cao H, Dong X, Xu N, Zou X, Yin Z. The temporal-spatial patterns, polymorphisms and association analysis with meat quality traits of FABP1 gene in domestic pigeons ( Columba livia). Br Poult Sci 2020; 61:232-241. [PMID: 32063032 DOI: 10.1080/00071668.2020.1724880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
1. Fatty acid-binding proteins (FABP) are members of lipid-binding proteins, which participate in the metabolism and intracellular transportation of lipids. This study was designed to investigate the expression patterns, polymorphisms and associations with meat quality traits of the FABP1 gene in pigeons. 2. The temporal-spatial expression patterns showed FABP1 was widely expressed in all eleven tissues from 0-4 weeks of age, the expression level in the liver was the highest, followed by the small intestine and subcutaneous fat. 3. Five novel SNPs were found; all of them were synonymous and in Hardy-Weinberg equilibrium. Association analysis revealed that for the SNP of G161C, the AB and BB genotypes had higher (P ≤ 0.01) inosinic acid concentrations in breast muscle than the AA genotype. The BB genotype showed the highest (P < 0.01) intramuscular fat among the three genotypes, and significantly greater FABP1 mRNA levels were observed in the breast muscle of the BB genotype than in the AA and AB genotypes (P < 0.01). In the SNP C1376T, the AB and BB genotypes showed higher (P < 0.01) intramuscular fat than the AA genotype, and the relative mRNA expression level of the BB (P < 0.01) and AB (P < 0.05) genotypes was higher than that of the AA genotype in breast muscle. Correlation analysis implied that the FABP1 mRNA expression level was closely related to the inosinic acid (P < 0.05) and intramuscular fat content (P < 0.01). Oil red O staining of frozen sections of breast muscle on d 28 for SNPs G161C and C1376T also indicated that the BB genotype had the highest intramuscular fat content in both SNPs. In addition, correlation analysis implied the FABP1 mRNA expression level was closely related to inosinic acid (P < 0.05) and intramuscular fat content (P < 0.01). 4. The results suggested that FABP1 could be a potential candidate gene in marker-assisted selection for breeding pigeons with high-quality meat.
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Affiliation(s)
- H Mao
- Animal Science College, Zhejiang University , Hangzhou, China
| | - X Xu
- Animal Science College, Zhejiang University , Hangzhou, China
| | - H Liu
- Animal Science College, Zhejiang University , Hangzhou, China
| | - H Cao
- Animal Science College, Zhejiang University , Hangzhou, China
| | - X Dong
- Animal Science College, Zhejiang University , Hangzhou, China
| | - N Xu
- Animal Science College, Zhejiang University , Hangzhou, China
| | - X Zou
- Animal Science College, Zhejiang University , Hangzhou, China
| | - Z Yin
- Animal Science College, Zhejiang University , Hangzhou, China
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Ossetrova NI, Stanton P, Krasnopolsky K, Ismail M, Doreswamy A, Hieber KP. Comparison of Biodosimetry Biomarkers for Radiation Dose and Injury Assessment After Mixed-Field (Neutron and Gamma) and Pure Gamma Radiation in the Mouse Total-Body Irradiation Model. HEALTH PHYSICS 2018; 115:743-759. [PMID: 33289997 DOI: 10.1097/hp.0000000000000939] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The detonation of a nuclear weapon and the occurrence of a nuclear accident represent possible mass-casualty events with significant exposure to mixed neutron and gamma radiation fields in the first few minutes after the event with the ensuing fallout, extending for miles from the epicenter, that would result primarily in photon (gamma- and/or x-ray) exposure. Circulating biomarkers represent a crucial source of information in a mass-casualty radiation exposure triage scenario. We evaluated multiple blood biodosimetry and organ-specific biomarkers for early-response assessment of radiation exposure using a mouse (B6D2F1, males and females) total-body irradiation model exposed to Co gamma rays over a broad dose range (3-12 Gy) and dose rates of either 0.6 or 1.9 Gy min and compared the results with those obtained after exposure of mice to a mixed field (neutrons and gamma rays) using the Armed Forces Radiobiology Research Institute Co gamma-ray source and TRIGA Mark F nuclear research reactor. The mixed-field studies were performed previously over a broad dose range (1.5-6 Gy), with dose rates of either 0.6 or 1.9 Gy min, and using different proportions of neutrons and gammas: either (67% neutrons + 33% gammas) or (30% neutrons + 70% gammas). Blood was collected 1, 2, 4, and 7 d after total-body irradiation. Results from Co gamma-ray studies demonstrate: (1) significant dose- and time-dependent reductions in circulating mature hematopoietic cells; (2) dose- and time-dependent changes in fms-related tyrosine kinase 3 ligand, interleukins IL-5, IL-10, IL-12, and IL-18, granulocyte colony-stimulating factors, thrombopoietin, erythropoietin, acute-phase proteins (serum amyloid A and lipopolysaccharide binding protein), surface plasma neutrophil (CD45) and lymphocyte (CD27) markers, ratio of CD45 to CD27, procalcitonin but not in intestinal fatty acid binding protein; (3) no significant differences were observed between dose-rate groups in hematological and protein profiles (fms-related tyrosine kinase 3 ligand, IL-5, IL-12, IL-18, erythropoietin, granulocyte colony-stimulating factor, granulocyte-macrophage colony-stimulating factor, CD27, CD45, and ratio of CD45 to CD27) for any radiation dose at any time after exposure (p > 0.148); (4) no significant differences were observed between sex groups in hematological and protein profiles (fms-related tyrosine kinase 3 ligand, IL-18, erythropoietin, granulocyte colony-stimulating factor, granulocyte-macrophage colony-stimulating factor, serum amyloid A, CD45) for any radiation dose at any time after exposure (p > 0.114); and (5) PCT level significantly increased (p < 0.008) in mice irradiated with 12 Gy on day 7 post-total-body irradiation without significant differences between groups irradiated at dose rates of either 0.6 or 1.9 Gy min (p > 0.287). Radiation-quality comparison results demonstrate that: (1) equivalent doses of pure gamma rays and mixed-field radiation do not produce equivalent biological effects, and hematopoietic syndrome occurs at lower doses of mixed-field radiation; (2) ratios of hematological and protein biomarker means in the Co study compared to mixed-field studies using 2× Co doses vs. 1× TRIGA radiation doses (i.e., 3 Gy Co vs. 1.5 Gy TRIGA) ranged from roughly 0.2 to as high as 26.5 but 57% of all ratios fell within 0.7 and 1.3; and (3) in general, biomarker results are in agreement with the relative biological effectiveness = 1.95 (Dn/Dt = 0.67) reported earlier by Armed Forces Radiobiology Research Institute scientists in mouse survival countermeasure studies.
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Affiliation(s)
- Natalia I Ossetrova
- 1Uniformed Services University, Armed Forces Radiobiology Research Institute, Scientific Research Department, 4555 South Palmer Road Bethesda, MD 20889-5648
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Histological organization of intestinal villi in the crocodilian caiman yacare (Daudin, 1802) during dietary lipid absorption. ZOOMORPHOLOGY 2018. [DOI: 10.1007/s00435-018-0401-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Ma YF, Chen L, He J, Tian Y, Xu XQ, Du X, Lu LZ. Gene Expression Patterns of Geese Expression Patterns of L-FABP, Spot 14, OB and APO A1 Genes in Different Tissues of Overfed and Control Geese. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2017. [DOI: 10.1590/1806-9061-2016-0400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- YF Ma
- Jinhua Polytechnic, China
| | - L Chen
- Institute of Animal Husbandry and Veterinary Science, China
| | - J He
- Institute of Animal Husbandry and Veterinary Science, China
| | - Y Tian
- Institute of Animal Husbandry and Veterinary Science, China
| | - XQ Xu
- Institute of Animal Husbandry and Veterinary Science, China
| | - X Du
- Institute of Animal Husbandry and Veterinary Science, China
| | - LZ Lu
- Institute of Animal Husbandry and Veterinary Science, China
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Simões ALB, Figueira RL, Gonçalves FLL, Mitidiero LFT, Silva OCE, Peiró JL, Sbragia L. Temporal profile of intestinal tissue expression of intestinal fatty acid-binding protein in a rat model of necrotizing enterocolitis. Clinics (Sao Paulo) 2016; 71:412-9. [PMID: 27464299 PMCID: PMC4946529 DOI: 10.6061/clinics/2016(07)10] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 04/07/2016] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVES Necrotizing enterocolitis is a severe multifactorial intestinal disorder that primarily affects preterm newborns, causing 20-40% mortality and morbidity. Intestinal fatty acid-binding protein has been reported to be a biomarker for the detection of intestinal injuries. Our aim was to assess intestinal tissue injury and the molecular expression of intestinal fatty acid-binding protein over time in a necrotizing enterocolitis model. METHODS A total of 144 Newborn rats were divided into two groups: 1) Control, which received breastfeeding (n=72) and 2) Necrotizing Enterocolitis, which received formula feeding and underwent hypoxia and hypothermia (n=72). A total of six time points of ischemia (2 times a day for 3 days; 12 pups for each time point) were examined. Samples were collected for analysis of body weight, morphological and histological characteristics, intestinal weight, intestinal weight/body weight ratio, injury grade, and intestinal fatty acid-binding protein levels. RESULTS Body and intestinal weights were lower in the Necrotizing Enterocolitis group than in the Control group (p<0.005 and p<0.0005, respectively). The intestinal weight/body weight ratio was higher in the Necrotizing Enterocolitis group than in the Control group (p<0.005) only at the sixth ischemia time point. The Necrotizing Enterocolitis group displayed higher expression of intestinal fatty acid-binding protein (p<0.0005) and showed greater tissue damage than the Control group. CONCLUSION Intestinal fatty acid-binding protein was an efficient marker of ischemic injury to the intestine and a good correlation was demonstrated between the time of ischemic injury and the grade of intestinal injury.
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Affiliation(s)
- Ana Leda Bertoncini Simões
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia e Anatomia, Divisão de Pediatria, Ribeirão Preto, SP/Brazil
| | - Rebeca Lopes Figueira
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia e Anatomia, Divisão de Pediatria, Ribeirão Preto, SP/Brazil
| | - Frances Lilian Lanhellas Gonçalves
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia e Anatomia, Divisão de Pediatria, Ribeirão Preto, SP/Brazil
| | - Luís Felipe Tsuyoshi Mitidiero
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia e Anatomia, Divisão de Pediatria, Ribeirão Preto, SP/Brazil
| | - Orlando Castro e Silva
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia e Anatomia, Cirurgia de Transplante, Ribeirão Preto, SP/Brazil
| | - José Luis Peiró
- Fetal Care Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Lourenço Sbragia
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia e Anatomia, Divisão de Pediatria, Ribeirão Preto, SP/Brazil
- E-mail:
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Association of single-nucleotide polymorphisms rs2197076 and rs2241883 of FABP1 gene with polycystic ovary syndrome. J Assist Reprod Genet 2015; 33:75-83. [PMID: 26650609 DOI: 10.1007/s10815-015-0626-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 11/22/2015] [Indexed: 01/31/2023] Open
Abstract
PURPOSE The objective of this study was to evaluate the association between single-nucleotide polymorphisms (SNPs) rs2197076 and rs2241883 in fatty acid-binding protein 1 (FABP1) gene and polycystic ovary syndrome (PCOS). METHODS The two alleles rs2197076 and rs2241883 in FABP1 gene in 221 PCOS women and 198 normal women were amplified and sequenced. Allele frequency comparison was performed between the PCOS and control groups, and genotype-phenotype correlation analysis was performed using dominant and recessive models to assess the association of FABP1 and the main features of PCOS. RESULTS Allele frequency analyses showed a strong association of SNPs rs2197076 and rs2241883 of FABP1 gene with PCOS (P < 0.001). The additive, dominant, and recessive genotype model analyses further supported this association even after adjusting for age and body mass index (BMI). The minor allele frequency (MAF) of rs2241883 in obese PCOS women was less than that in obese control women. Further genotype-phenotype correlation analysis showed that SNP rs2197076 had a stronger association with the main features of PCOS than SNP rs2241883. CONCLUSION In the association of SNPs in FABP1 gene with PCOS, rs2197076 was more closely associated with its main features than rs2241883 and seemed to play a more important role in the pathogenesis of PCOS.
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Wang G, Bonkovsky HL, de Lemos A, Burczynski FJ. Recent insights into the biological functions of liver fatty acid binding protein 1. J Lipid Res 2015; 56:2238-47. [PMID: 26443794 DOI: 10.1194/jlr.r056705] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Indexed: 12/18/2022] Open
Abstract
Over four decades have passed since liver fatty acid binding protein (FABP)1 was first isolated. There are few protein families for which most of the complete tertiary structures, binding properties, and tissue occurrences are described in such detail and yet new functions are being uncovered for this protein. FABP1 is known to be critical for fatty acid uptake and intracellular transport and also has an important role in regulating lipid metabolism and cellular signaling pathways. FABP1 is an important endogenous cytoprotectant, minimizing hepatocyte oxidative damage and interfering with ischemia-reperfusion and other hepatic injuries. The protein may be targeted for metabolic activation through the cross-talk among many transcriptional factors and their activating ligands. Deficiency or malfunction of FABP1 has been reported in several diseases. FABP1 also influences cell proliferation during liver regeneration and may be considered as a prognostic factor for hepatic surgery. FABP1 binds and modulates the action of many molecules such as fatty acids, heme, and other metalloporphyrins. The ability to bind heme is another cytoprotective property and one that deserves closer investigation. The role of FABP1 in substrate availability and in protection from oxidative stress suggests that FABP1 plays a pivotal role during intracellular bacterial/viral infections by reducing inflammation and the adverse effects of starvation (energy deficiency).
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Affiliation(s)
- GuQi Wang
- Jiangxi Normal University, Nanchang, Jiangxi, People's Republic of China Department of Biology, University of North Carolina at Charlotte, Charlotte, NC Carolinas HealthCare System, Charlotte, NC
| | - Herbert L Bonkovsky
- Department of Biology, University of North Carolina at Charlotte, Charlotte, NC Carolinas HealthCare System, Charlotte, NC Wake Forest Baptist Medical Center, Winston-Salem, NC
| | - Andrew de Lemos
- Carolinas HealthCare System, Charlotte, NC Wake Forest Baptist Medical Center, Winston-Salem, NC
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Evaluation of the expression of I-FABP and L-FABP in a necrotizing enterocolitis model after the use of Lactobacillus acidophilus. J Pediatr Surg 2015; 50:543-9. [PMID: 25840060 DOI: 10.1016/j.jpedsurg.2014.07.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 06/05/2014] [Accepted: 07/03/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND/PURPOSE Necrotizing enterocolitis (NEC) is a severe intestinal disease that primarily affects premature babies, leading to high mortality and morbidity. Probiotics represent an important alternative prophylaxis for NEC but its mechanism of action is poorly understood. Moreover, intestinal and liver-type fatty acid-binding proteins (I-FABP and L-FABP) may be utilized because markers of intestinal injury, including NEC. We aimed to evaluate the protection induced by the Lactobacillus acidophilus on the intestines of newborn rats submitted to experimental NEC using I-FABP and L-FABP as biomarkers. METHODS Sprague-Dawley newborn rats were divided into three groups: (1) C (control)-breast-fed; (2) NEC-subjected to NEC protocol and (3) NECP-NEC+probiotic. Morphometric, intestinal lesion, immunohistochemistry and Western blotting analysis were performed. Statistical significant differences were considered when p<0.05. RESULTS Intestinal weight was lower in NEC and NECP compared to C (p<0.05). Intestinal injury was lower in NECP compared to NEC. Prophylactic probiotic recovered mucosa and muscular layers' thickness to C levels (p<0.05). I-FABP and L-FABP expressions in NECP showed intermediate values between C and NEC. CONCLUSION L. acidophilus had a protective effect on the development of NEC and FABPs could demonstrate the degree of tissular damage of the intestine.
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Gajda AM, Storch J. Enterocyte fatty acid-binding proteins (FABPs): different functions of liver and intestinal FABPs in the intestine. Prostaglandins Leukot Essent Fatty Acids 2015; 93:9-16. [PMID: 25458898 PMCID: PMC4323920 DOI: 10.1016/j.plefa.2014.10.001] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 10/03/2014] [Indexed: 02/07/2023]
Abstract
Fatty acid-binding proteins (FABP) are highly abundant cytosolic proteins that are expressed in most mammalian tissues. In the intestinal enterocyte, both liver- (LFABP; FABP1) and intestinal FABPs (IFABP; FABP2) are expressed. These proteins display high-affinity binding for long-chain fatty acids (FA) and other hydrophobic ligands; thus, they are believed to be involved with uptake and trafficking of lipids in the intestine. In vitro studies have identified differences in ligand-binding stoichiometry and specificity, and in mechanisms of FA transfer to membranes, and it has been hypothesized that LFABP and IFABP have different functions in the enterocyte. Studies directly comparing LFABP- and IFABP-null mice have revealed markedly different phenotypes, indicating that these proteins indeed have different functions in intestinal lipid metabolism and whole body energy homeostasis. In this review, we discuss the evolving knowledge of the functions of LFABP and IFABP in the intestinal enterocyte.
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Affiliation(s)
- Angela M Gajda
- Department of Nutritional Sciences and Rutgers Center for Lipid Research Rutgers University, New Brunswick, NJ 08901, USA
| | - Judith Storch
- Department of Nutritional Sciences and Rutgers Center for Lipid Research Rutgers University, New Brunswick, NJ 08901, USA.
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Peng XE, Wu YL, Lu QQ, Hu ZJ, Lin X. Two genetic variants in FABP1 and susceptibility to non-alcohol fatty liver disease in a Chinese population. Gene 2012; 500:54-8. [DOI: 10.1016/j.gene.2012.03.050] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 02/27/2012] [Accepted: 03/09/2012] [Indexed: 10/28/2022]
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Patankar JV, Chandak PG, Obrowsky S, Pfeifer T, Diwoky C, Uellen A, Sattler W, Stollberger R, Hoefler G, Heinemann A, Battle M, Duncan S, Kratky D, Levak-Frank S. Loss of intestinal GATA4 prevents diet-induced obesity and promotes insulin sensitivity in mice. Am J Physiol Endocrinol Metab 2011; 300:E478-88. [PMID: 21177287 PMCID: PMC3163292 DOI: 10.1152/ajpendo.00457.2010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Transcriptional regulation of small intestinal gene expression controls plasma total cholesterol (TC) and triglyceride (TG) levels, which are major determinants of metabolic diseases. GATA4, a zinc finger domain transcription factor, is critical for jejunal identity, and intestinal GATA4 deficiency leads to a jejunoileal transition. Although intestinal GATA4 ablation is known to misregulate jejunal gene expression, its pathophysiological impact on various components of metabolic syndrome remains unknown. Here, we used intestine-specific GATA4 knockout (GATA4iKO) mice to dissect the contribution of GATA4 on obesity development. We challenged adult GATA4iKO mice and control littermates with a Western-type diet (WTD) for 20 wk. Our findings show that WTD-fed GATA4iKO mice are resistant to diet-induced obesity. Accordingly, plasma TG and TC levels are markedly decreased. Intestinal lipid absorption in GATA4iKO mice was strongly reduced, whereas luminal lipolysis was unaffected. GATA4iKO mice displayed a greater glucagon-like peptide-1 (GLP-1) release on normal chow and even after long-term challenge with WTD remained glucose sensitive. In summary, our findings show that the absence of intestinal GATA4 has a beneficial effect on decreasing intestinal lipid absorption causing resistance to hyperlipidemia and obesity. In addition, we show that increased GLP-1 release in GATA4iKO mice decreases the risk for development of insulin resistance.
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Affiliation(s)
- Jay V Patankar
- Institute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21/3, Graz, Austria
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Georges A, Bonneau J, Bonnefont-Rousselot D, Champigneulle J, Rabès JP, Abifadel M, Aparicio T, Guenedet JC, Bruckert E, Boileau C, Morali A, Varret M, Aggerbeck LP, Samson-Bouma ME. Molecular analysis and intestinal expression of SAR1 genes and proteins in Anderson's disease (Chylomicron retention disease). Orphanet J Rare Dis 2011; 6:1. [PMID: 21235735 PMCID: PMC3029219 DOI: 10.1186/1750-1172-6-1] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Accepted: 01/14/2011] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Anderson's disease (AD) or chylomicron retention disease (CMRD) is a very rare hereditary lipid malabsorption syndrome. In order to discover novel mutations in the SAR1B gene and to evaluate the expression, as compared to healthy subjects, of the Sar1 gene and protein paralogues in the intestine, we investigated three previously undescribed individuals with the disease. METHODS The SAR1B, SAR1A and PCSK9 genes were sequenced. The expression of the SAR1B and SAR1A genes in intestinal biopsies of both normal individuals and patients was measured by RTqPCR. Immunohistochemistry using antibodies to recombinant Sar1 protein was used to evaluate the expression and localization of the Sar1 paralogues in the duodenal biopsies. RESULTS Two patients had a novel SAR1B mutation (p.Asp48ThrfsX17). The third patient, who had a previously described SAR1B mutation (p.Leu28ArgfsX7), also had a p.Leu21dup variant of the PCSK9 gene. The expression of the SAR1B gene in duodenal biopsies from an AD/CMRD patient was significantly decreased whereas the expression of the SAR1A gene was significantly increased, as compared to healthy individuals. The Sar1 proteins were present in decreased amounts in enterocytes in duodenal biopsies from the patients as compared to those from healthy subjects. CONCLUSIONS Although the proteins encoded by the SAR1A and SAR1B genes are 90% identical, the increased expression of the SAR1A gene in AD/CMRD does not appear to compensate for the lack of the SAR1B protein. The PCSK9 variant, although reported to be associated with low levels of cholesterol, does not appear to exert any additional effect in this patient. The results provide further insight into the tissue-specific nature of AD/CMRD.
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Affiliation(s)
- Amandine Georges
- Service de Médecine Infantile 3 et Génétique Clinique, INSERM U954, Hôpital d'Enfants Brabois, CHU Nancy, Vandoeuvre les Nancy, 54511, France
| | - Jessica Bonneau
- INSERM U781, Université Paris Descartes, Hôpital Necker Enfants Malades, Paris, 75015, France
| | - Dominique Bonnefont-Rousselot
- UF de Biochimie des Maladies Métaboliques, Service de Biochimie Métabolique, Groupe Hospitalier Pitié-Salpêtrière (AP-HP), and Département de Biologie Expérimentale, Métabolique et Clinique, EA 4466, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Paris, 75013, France
| | - Jacqueline Champigneulle
- Laboratoire d'Anatomie et de Cytologie Pathologiques, Hôpital de Brabois, Université Paris 13, Bobigny, 93000, France
| | - Jean P Rabès
- INSERM U781, Université Paris Descartes, Hôpital Necker Enfants Malades, Paris, 75015, France
- Service de Biochimie et Génétique Moléculaire, CHU A Paré, AP-HP et Faculté de Médecine (PIFO-UVSQ), Boulogne, 92104, France
| | - Marianne Abifadel
- INSERM U781, Université Paris Descartes, Hôpital Necker Enfants Malades, Paris, 75015, France
| | - Thomas Aparicio
- Service de Gastroentérologie, Hôpital Avicenne, 125 rue de Stalingrad, Université Paris 13, Bobigny, 93000, France
| | - Jean C Guenedet
- Laboratoire d'Anatomie et de Cytologie Pathologiques, Hôpital de Brabois, Université Paris 13, Bobigny, 93000, France
- Service de Microscopie Electronique, Hôpital de Brabois, CHU Nancy, Vandoeuvre les Nancy, 54511, France
| | - Eric Bruckert
- Service d'Endocrinologie-Métabolisme, Hôpital Pitié Salpêtrière, (AP-HP), Paris, 75013, France
| | - Catherine Boileau
- INSERM U781, Université Paris Descartes, Hôpital Necker Enfants Malades, Paris, 75015, France
- Service de Biochimie et Génétique Moléculaire, CHU A Paré, AP-HP et Faculté de Médecine (PIFO-UVSQ), Boulogne, 92104, France
| | - Alain Morali
- Service de Médecine Infantile 3 et Génétique Clinique, INSERM U954, Hôpital d'Enfants Brabois, CHU Nancy, Vandoeuvre les Nancy, 54511, France
| | - Mathilde Varret
- INSERM U781, Université Paris Descartes, Hôpital Necker Enfants Malades, Paris, 75015, France
| | | | - Marie E Samson-Bouma
- INSERM U781, Université Paris Descartes, Hôpital Necker Enfants Malades, Paris, 75015, France
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Auinger A, Helwig U, Rubin D, Herrmann J, Jahreis G, Pfeuffer M, de Vrese M, Foelsch UR, Schreiber S, Doering F, Schrezenmeir J. Human intestinal fatty acid binding protein 2 expression is associated with fat intake and polymorphisms. J Nutr 2010; 140:1411-7. [PMID: 20534879 DOI: 10.3945/jn.109.118034] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The intestinal fatty acid binding protein (FABP2) is involved in lipid metabolism whereby variations in the promoter (haplotypes A/B) and exon 2 (Ala54Thr) are associated with dyslipidemia and insulin resistance. To elucidate which factors determine FABP2 expression in human mucosa, we investigated the association between fat intake, genotypes, biochemical variables, and FABP2 expression. FABP2 gene expression was assessed in duodenal specimens from 100 participants who answered a FFQ and who were genotyped and characterized for traits of metabolic syndrome and further biochemical data. Homozygotes for haplotype A tended to have lower fat intake than B-allele carriers (P = 0.066). Searching for an explanation, we evaluated the orexigenic glucose-dependent insulinotropic polypeptide (GIP) in a subset from the Metabolic Intervention Cohort Kiel. AA homozygotes had lower postprandial GIP concentrations than BB homozygotes. Duodenal FABP2 expression was correlated with (n-3) fatty acid (FA) intake in AA homozygotes (r = 0.49; P = 0.021). It was higher in AA homozygotes than in B-allele carriers after adjustment for (n-3) FA intake (P = 0.049) and was negatively correlated with serum FFA (r = -0.41; P < 0.01). Our data indicate that FABP2 expression depends on (n-3) FA intake and FABP2 genotypes. FABP2 might be involved in regulating food intake and intestinal FA utilization.
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Affiliation(s)
- Annegret Auinger
- Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Department of Physiology and Biochemistry of Nutrition, Kiel, Karlsruhe, Germany.
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Peretti N, Roy CC, Sassolas A, Deslandres C, Drouin E, Rasquin A, Seidman E, Brochu P, Vohl MC, Labarge S, Bouvier R, Samson-Bouma ME, Charcosset M, Lachaux A, Levy E. Chylomicron retention disease: a long term study of two cohorts. Mol Genet Metab 2009; 97:136-42. [PMID: 19285442 DOI: 10.1016/j.ymgme.2009.02.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2009] [Accepted: 02/09/2009] [Indexed: 10/21/2022]
Abstract
Lipoprotein assembly is critical for the intestinal absorption of dietary lipids and of fat-soluble vitamins. Through their inhibition of chylomicron secretion, mutations of the Sar1B gene coding for Sar1 GTPase are associated with chylomicron retention disease (CRD). The aim of this study was to describe the phenotypic expression of CRD in two clinically and genetically well characterized cohorts, and to compare their long term evolution. The study in 7 children from France (X age 11.3+/-1.7 years) and 9 from Quebec, Canada (X age 12+/-2.5 years) involved data collection from medical records for growth evaluation, neurological and ophthalmological status as well as bone density over an average follow-up period of 4.9 years for the French cohort and of 10.6 years for the Canadian one. All CRD patients presented within the first few months of life with diarrhea and failure to thrive. Severe hypocholesterolemia coupled with normal triglycerides was associated with low LDL and HDL-cholesterol, as well as with low apolipoproteins A-I and B. Varying degrees of essential fatty acid and of vitamin E deficiency were observed. The earlier diagnosis in the Canadian cohort (1.3+/-0.04 years) than in the French one (6.3+/-1.3 years) was unrelated with the severity of presenting symptoms. The fact that the disease had more impact on growth and bone density in the latter group may be related to delayed diagnosis of the disease. Vitamin E deficiency led to functional neurological and ophthalmic changes in a small number of patients but only one developed areflexia. Finally, genotype-phenotype correlation is not obvious in our cohort with CRD; even if, the Canadian subjects with the allele 409G>A had a more severe degree (P<0.001) of hypocholesterolemia than the other patients, many clinical data are inconsistent with a hypothetical genotype-phenotype correlation. This study provides new insights on the phenotypic expression of CRD over time and emphasizes the need to screen the lipid profile of infants with chronic diarrhea and failure to thrive.
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Affiliation(s)
- Noel Peretti
- Department of Nutrition, CHU Sainte-Justine, Université de Montréal, GI-Nutrition Unit, 3175 Ste-Catherine Road, Montreal, Que., Canada
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Abstract
Liver-type fatty acid-binding protein (L-FABP), a member of the genetically related cytosolic fatty acid binding protein (FABP) family, has both similar and different function and conformation compared with other family members. L-FABP, which is mainly found in liver and small intestine, participates in transporting fatty acids and combining a variety of hydrophobic group and is associated with many diseases. In recent years, the transfer mechanism of L-FABP was attracting great attention, and the research methods were developed from in vitro to in vivo, and from cell molecular level to gene ablation animals. Although a part of the mechanism has been revealed, the research should be continued to demonstrate it in deepth and resolve some new questions. This article aims to review the characteristics, conformation and in vivo study status of L-FABP.
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Silvain M, Bligny D, Aparicio T, Laforêt P, Grodet A, Peretti N, Ménard D, Djouadi F, Jardel C, Bégué JM, Walker F, Schmitz J, Lachaux A, Aggerbeck LP, Samson-Bouma ME. Anderson’s disease (chylomicron retention disease): a new mutation in the SARA2 gene associated with muscular and cardiac abnormalities. Clin Genet 2008; 74:546-52. [DOI: 10.1111/j.1399-0004.2008.01069.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
The progress in discerning the structure and function of cells and tissues in health and disease has been achieved to a large extent by the continued development of new reagents for histochemistry, the improvement of existing techniques and new imaging techniques. This review will highlight some advancements made in these fields.
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