Abstract:
:The human forkhead box O1A (FOXO1A) gene on chromosome 13q14.1 is a key transcription factor in insulin signaling in liver and adipose tissue and plays a central role in the regulation of key pancreatic beta-cell genes including IPF1. We hypothesized that sequence variants of FOXO1A contribute to the observed defects in hepatic and peripheral insulin action and altered beta-cell compensation that characterize type 2 diabetes (T2DM). To test this hypothesis, we screened the three exons, 3' untranslated region, and 5' flanking region for sequence variants in Caucasian and African-American individuals with early onset (<45 years) T2DM. We identified only six variants; none altered the coding sequence, and except for one variant in the 3' untranslated region, they were rare or absent in Caucasians. To increase coverage of the gene, we selected seven additional variants in the large first intron and 5' flanking region, thus providing 13 variants that spanned 116.4kb. Based on frequency and linkage disequilibrium patterns in a subset of individuals, we selected eight SNPs to type in a Caucasian population comprising 192 unrelated nondiabetic control individuals and 192 individuals with T2DM, and 10 SNPs to type in 182 controls and 352 diabetic individuals of African-American ancestry. No variant was associated with T2DM (African-Americans, p>0.08; Caucasians, p>0.09). Of the 8 Caucasian SNPs, six comprised a single haplotype block spanning over 100kb and including most of the large first intron. In contrast, no block was observed among SNPs typed in African-Americans. No haplotype was associated with T2DM. FOXO1A variation is rare and is unlikely to contribute to T2DM in either Caucasian or African-American populations.
journal_name
Mol Genet Metabjournal_title
Molecular genetics and metabolismauthors
Karim MA,Craig RL,Wang X,Hale TC,Elbein SCdoi
10.1016/j.ymgme.2006.01.003subject
Has Abstractpub_date
2006-06-01 00:00:00pages
171-7issue
2eissn
1096-7192issn
1096-7206pii
S1096-7192(06)00004-7journal_volume
88pub_type
杂志文章abstract::Inherited defects in glutaryl-CoA dehydrogenase cause the neurometabolic disease, glutaric acidemia type I. Five of over 80 mutations that have been identified are located in a carboxyl-terminal domain. The five mutations were generated by site directed mutagenesis and expressed in Escherichia coli. The mutant dehydro...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/s1096-7192(03)00109-4
更新日期:2003-08-01 00:00:00
abstract::The mucopolysaccharidoses (MPS) result from attenuation or loss of enzyme activities required for lysosomal degradation of the glycosaminoglycans, hyaluronan, heparan sulfate, chondroitin/dermatan sulfate, and keratan sulfate. This review provides a summary of glycan biomarkers that have been used to characterize anim...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章,评审
doi:10.1016/j.ymgme.2013.07.016
更新日期:2014-02-01 00:00:00
abstract::Acute intermittent porphyria (AIP) is an autosomal dominant disorder of heme biosynthesis caused by molecular defects in the hydroxymethylbilane synthase (HMBS) gene. In this study, we report two novel missense sequence variations in the HMBS gene, T59I (C176T) and V215M (G643A), in two patients with clinical symptoms...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2008.03.001
更新日期:2008-07-01 00:00:00
abstract::Anophthalmia and microphthalmia (A/M) are significant eye defects because they can have profound effects on visual acuity. A/M is associated with non-ocular abnormalities in an estimated 33-95% of cases and around 25% of patients have an underlying genetic syndrome that is diagnosable. Syndrome recognition is importan...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章,评审
doi:10.1016/j.ymgme.2011.09.029
更新日期:2011-12-01 00:00:00
abstract::Degenerative joint disease (DJD) is one aspect of mucopolysaccharidosis VI (MPS VI) pathology that has proven resistant to systemic enzyme replacement therapy (ERT). In this study the effect of repeated intra-articular injections (IA INJ) of recombinant human acetylgalactosamine-4-sulfatase (rh4S) on DJD was examined....
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2007.04.009
更新日期:2007-08-01 00:00:00
abstract::Mutations in DGUOK result in mitochondrial DNA (mtDNA) depletion and may present as neonatal liver failure. Neonatal hemochromatosis (NH(1)) is a liver disorder of uncertain and varied etiology characterized by hepatic and non-reticuloendothelial siderosis. To date, deoxyguanosine kinase (dGK(2)) deficiency has not be...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2011.03.006
更新日期:2011-07-01 00:00:00
abstract::Thymidine kinase 2 (TK2), encoded by the TK2 gene on chromosome 16q22, is one of the deoxyribonucleoside kinases responsible for the maintenance of mitochondrial deoxyribonucleotide pools. Defects in TK2 mainly cause a myopathic form of the mitochondrial DNA depletion syndrome (MDDS). Currently, only point mutations a...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2009.09.003
更新日期:2010-01-01 00:00:00
abstract::Mucopolysaccharidosis VI (MPS VI) is a rare autosomal recessive disorder caused by a deficiency of N-acetylgalactosamine-4-sulfatase (ARSB). Over 130 ARSB gene mutations have been identified thus far and most mutations are unique to individual families. We aimed to analyze the spectrum of mutations in the ARSB gene re...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2011.11.003
更新日期:2012-02-01 00:00:00
abstract::A tetraglucose oligomer, Glcalpha1-6Glcalpha1-4Glcalpha1-4Glc, designated Glc4, has been shown to be a putative biomarker for the diagnosis of Pompe disease. The purpose of this study was to assess whether Glc4 could be used to monitor the therapeutic response to recombinant human acid alpha glucosidase (rhGAA) enzyme...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2005.03.010
更新日期:2005-08-01 00:00:00
abstract::Gaucher disease (GD) is an autosomal-recessive lysosomal storage disease caused by a deficiency of the enzyme, glucocerebrocidase, resulting in accumulation of lipid-laden storage cells in multiple organs such as bone marrow, liver, spleen, and lungs. Type 1 Gaucher disease is the most common form of this condition in...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2017.10.013
更新日期:2018-03-01 00:00:00
abstract::Dyggve-Melchior-Clausen (DMC) is a rare autosomal-recessive disorder characterized by the association of a progressive spondylo-epi-metaphyseal dysplasia and mental retardation ranging from mild to severe. Electron microscopy studies of both DMC chondrocytes and fibroblasts reveal an enlarged endoplasmic reticulum net...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章,评审
doi:10.1016/j.ymgme.2004.08.012
更新日期:2004-09-01 00:00:00
abstract::N-acetylglutamate (NAG) is a unique enzyme cofactor, essential for liver ureagenesis in mammals while it is the first committed substrate for de novo arginine biosynthesis in microorganisms and plants. The enzyme that produces NAG from glutamate and CoA, NAG synthase (NAGS), is allosterically inhibited by arginine in ...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章,评审
doi:10.1016/j.ymgme.2010.02.018
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Barth syndrome (BTHS) is an X-linked recessive disorder characterized by cardiomyopathy, skeletal myopathy and cyclic neutropenia in male patients. It is caused by mutations in the TAZ gene coding for the tafazzin, a protein involved in the remodeling of cardiolipin. Loss of cardiolipin in the inner mitochon...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2012.01.015
更新日期:2012-05-01 00:00:00
abstract::Human reproductive function is regulated mainly by luteinizing hormone (LH) and follicle-stimulating hormone (FSH). Mutations of the human LH/ chorionic gonadotropin receptor (LHR) and the FSH receptor (FSHR) leading to either constitutive activation or inactivation of the receptors have been identified. All activatin...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章,评审
doi:10.1006/mgme.1997.2650
更新日期:1998-02-01 00:00:00
abstract::Erythropoietin (Epo), a glycoprotein hormone produced principally in the fetal kidney and in the adult liver in response to hypoxia, is the prime regulator of growth and differentiation in erythroid progenitor cells. The regulation of Epo gene expression is not fully understood, but two mechanisms have been proposed. ...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1006/mgme.1999.2851
更新日期:1999-06-01 00:00:00
abstract::Arginase deficiency is an urea cycle disorder that generally presents with mental retardation and spasticity, yet uncommonly with episodes of hyperammonemia. A female adolescent with arginase deficiency developed hyperammonemic episodes temporally related to her menstrual cycle, which ceased upon adequate treatment wi...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2006.07.012
更新日期:2006-12-01 00:00:00
abstract::Reported is a female patient with methionine adenosyltransferase I/III (MAT I/III) deficiency, who was found to have pronounced hypermethioninemia on newborn mass spectroscopy screening, and had two compound heterozygous missense mutations in the gene encoding human MAT1A protein. Hypermethioninemia persisted and her ...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2011.11.192
更新日期:2012-03-01 00:00:00
abstract::Carnitine-acylcarnitine translocase (CATR) deficiency is a severe defect in fatty acid oxidation which presents early in life most frequently with hypoglycemia, hyperammonemia, and severe cardiac abnormalities. CATR exchanges acylcarnitines of various chain lengths for free carnitine across the mitochondrial membrane....
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1006/mgme.1999.2950
更新日期:2000-01-01 00:00:00
abstract::Resveratrol (RSV) is a small compound first identified as an activator of sirtuin 1 (SIRT1), a key factor in mediating the effects of caloric restriction. Since then, RSV received great attention for its widespread beneficial effects on health and in connection to many diseases. RSV improves the metabolism and the mit...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2018.10.004
更新日期:2019-01-01 00:00:00
abstract::Tandem mass spectrometry (MS/MS) has been introduced in several newborn screening programs for the detection of a large number of inborn errors of metabolism, including fatty acid oxidation disorders (FAOD). Early identification and treatment of FAOD have the potential to improve outcome and may be life-saving in some...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1006/mgme.2001.3282
更新日期:2002-02-01 00:00:00
abstract:BACKGROUND:Propionic acidemia (PA) is an organic aciduria caused by inherited deficiency of propionyl-CoA carboxylase. Left ventricular dysfunction and QT prolongation may lead to life-threatening complications. Systematic analyses of cardiac phenotypes, in particular effects of specific cardiac therapies, are scarce. ...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2020.02.004
更新日期:2020-05-01 00:00:00
abstract::Pyridoxine dependent epilepsy is an autosomal recessive disorder characterized by early onset seizures responsive to pyridoxine and caused by a defect in the α-aminoadipic semialdehyde dehydrogenase (antiquitin) gene (ALDH7A1). In order to characterize the effects of a series of twelve disease-associated ALDH7A1 misse...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2012.06.008
更新日期:2012-08-01 00:00:00
abstract::Holocarboxylase synthetase (HCS) catalyses the biotinylation of the four biotin-dependent carboxylases found in humans. A deficiency in HCS results in biotin-responsive multiple carboxylase deficiency. We have evaluated the biotin responsiveness associated with six missense mutations previously identified in affected ...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1006/mgme.1998.2785
更新日期:1999-02-01 00:00:00
abstract::Globoid cell leukodystrophy (GLD, Krabbe disease), is an autosomal recessive, neurodegenerative disease caused by the deficiency of the lysosomal enzyme galactocerebrosidase (GALC). In the absence of GALC, the toxic metabolite psychosine accumulates in the brain and causes the death of the myelin-producing cells, olig...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2012.05.021
更新日期:2012-09-01 00:00:00
abstract::Glycogen storage disease type I (GSD I) is a metabolic disorder resulting from defects in the glucose-6-phosphatase system. Approximately 75% of adolescent and adult patients develop hepatocellular adenomas, which can lead to considerable morbidity and mortality. The pathogenesis of adenomas is unclear and the risk of...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2007.10.134
更新日期:2008-04-01 00:00:00
abstract::Phenylketonuria (PKU) is caused by mutations in the phenylalanine hydroxylase gene (PAH), while mutations in genes encoding the two enzymes (dihydropteridine reductase, DHPR, and pterin-4-alpha-carbinolamine dehydratase, PCD) required for recycling of its cofactor, tetrahydrobiopterin (BH(4)), cause other rarer diseas...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1006/mgme.2001.3198
更新日期:2001-07-01 00:00:00
abstract::This report compares statistical models based on molecular and inferred haplotypes of the human paraoxonase-1 gene (PON1). In a study of 402 women comprising three race/ethnicities, 137 women had ambiguous inferred haplotypes. The inferred haplotypes (the one with highest posterior probability) for 20 of these women d...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2006.05.004
更新日期:2006-11-01 00:00:00
abstract::Gaucher disease is caused by the defective catabolism of the simple glycosphingolipid, glucosylceramide (GlcCer), due to mutations in the GBA1 gene which encodes for acid β-glucosidase (GCase), the lysosomal enzyme that degrades GlcCer. Today, Gaucher disease patients are routinely treated with recombinant GCase, in a...
journal_title:Molecular genetics and metabolism
pub_type: 传,历史文章,杂志文章,评审
doi:10.1016/j.ymgme.2016.11.390
更新日期:2017-01-01 00:00:00
abstract::Recently, our group and others cloned the TRMA disease gene, SLC19A2, which encodes a thiamin transporter. Here, we report the cloning and characterization of the full-length cDNA and genomic sequences of mouse Slc19a2. The Slc19a2 cDNA contained a 1494-bp open-reading frame, and had 5'- and 3'-untranslated regions of...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1006/mgme.2001.3184
更新日期:2001-06-01 00:00:00
abstract::Saposin A is a post-translation product of the prosaposin (PSAP) gene that serves as an activator protein of the galactocerebrosidase (GALC) enzyme, and is necessary for the degradation of certain glycosphingolipids. Deficiency of saposin A leads to a clinical picture identical to that of early-infantile Krabbe diseas...
journal_title:Molecular genetics and metabolism
pub_type: 杂志文章
doi:10.1016/j.ymgme.2019.08.001
更新日期:2020-02-01 00:00:00