Abstract:
:IGF2 loss of imprinting (LOI) is fairly prevalent and implicated in the pathogenesis of human cancer and developmental disease; however, the causes of this phenomenon are largely unknown. We determined whether the post-weaning diet of mice affects allelic expression and CpG methylation of Igf2. C57BL/6JxCast/EiJ F1 hybrid mice were weaned onto (1) a standard natural ingredient control diet, (2) a synthetic control diet or (3) a synthetic methyl-donor-deficient diet lacking folic acid, vitamin B(12), methionine and choline. Maternal Igf2 expression in kidney was negligible at birth, but increased to approximately 10% of total expression after 60 days on the natural control diet. By 60 days post-weaning, both synthetic diets caused significant LOI of Igf2 relative to animals weaned onto the natural control diet. Total Igf2 expression was significantly reduced in these groups, however, indicating that the increase in relative maternal Igf2 expression was caused by specific down-regulation of the paternal allele. The LOI induced by the synthetic-deficient diet persisted during a subsequent 100-day 'recuperation' period on natural ingredient diet. There were no group differences in overall or allele-specific CpG methylation in the H19 differentially methylated region (DMR), Igf2 DMR0 or Igf2 DMR1. At 30 and 60 days post-weaning, however, the paternal allele of Igf2 DMR2 was hypermethylated in the kidneys of mice on the control synthetic diet. These results indicate that post-weaning diet can permanently affect expression of Igf2, suggesting that childhood diet could contribute to IGF2 LOI in humans.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Waterland RA,Lin JR,Smith CA,Jirtle RLdoi
10.1093/hmg/ddi484subject
Has Abstractpub_date
2006-03-01 00:00:00pages
705-16issue
5eissn
0964-6906issn
1460-2083pii
ddi484journal_volume
15pub_type
杂志文章abstract::Marfan syndrome is an autosomal dominant disorder mainly caused by mutations within FBN1 gene. The disease displays large variability in age of onset or severity and very poor phenotype/genotype correlations have been demonstrated. We investigated the hypothesis that phenotype severity could be related to the variable...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddv037
更新日期:2015-05-15 00:00:00
abstract::Prevalence of coronary heart disease (CHD), of type 2 diabetes (T2DM) and of the metabolic syndrome are in Mauritius amongst the highest in the world. As T2DM and CHD are closely associated and have both a polygenic basis, we conducted a 10 cM genome scan with 403 microsatellite markers in 99 independent families of N...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/10.24.2751
更新日期:2001-11-15 00:00:00
abstract::Migraine is a prevalent, debilitating and costly disorder with an ongoing unmet medical need. Human genetic studies have provided considerable insights into the molecular underpinnings of this complex brain disorder. Classical linkage studies have revealed the causes of familial hemiplegic migraine, while more recentl...
journal_title:Human molecular genetics
pub_type: 杂志文章,评审
doi:10.1093/hmg/ddt364
更新日期:2013-10-15 00:00:00
abstract::HTRA2-BETA1 is an SR-like protein that regulates alternative splice site selection in a concentration-dependent manner. Its proper concentration is important as several pathological states are associated with its change. We investigated the mechanism that controls the cellular HTRA2-BETA1 concentration and found it ut...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddh051
更新日期:2004-03-01 00:00:00
abstract::The ε4 allele of the APOE gene encoding apolipoprotein E (apoE) is a strong genetic risk factor for aging-related cognitive decline as well as late-onset Alzheimer's disease (AD) compared to the common ε3 allele. In the central nervous system, apoE is produced primarily by astrocytes and functions in transporting lipi...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddx155
更新日期:2017-07-15 00:00:00
abstract::Mitochondrial DNA (mtDNA) depletion syndrome (MDS), an autosomal recessive condition, is characterized by variable organ involvement with decreased mtDNA copy number and activities of respiratory chain enzymes in affected tissues. MtDNA depletion has been associated with mutations in nine autosomal genes, including th...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddn143
更新日期:2008-08-15 00:00:00
abstract::Huntington's disease is a devastating neurodegenerative condition associated with the formation of intraneuronal aggregates by mutant huntingtin. Aggregate formation is a property shared by the nine related diseases caused by polyglutamine codon expansion mutations and also by other neurodegenerative conditions like P...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddi372
更新日期:2005-11-15 00:00:00
abstract::Cockayne syndrome (CS) is a human premature aging disorder associated with neurological and developmental abnormalities, caused by mutations mainly in the CS group B gene (ERCC6). At the molecular level, CS is characterized by a deficiency in the transcription-couple DNA repair pathway. To understand the role of this ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/dds211
更新日期:2012-09-01 00:00:00
abstract::Human chromosome 15q11-13 is a complex locus containing imprinted genes as well as a cluster of three GABA(A) receptor subunit (GABR) genes-GABRB3, GABRA5 and GABRG3. Deletion or duplication of 15q11-13 GABR genes occurs in multiple human neurodevelopmental disorders including Prader-Willi syndrome (PWS), Angelman syn...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddm014
更新日期:2007-03-15 00:00:00
abstract::In neurodegenerative disorders associated with primary or secondary mitochondrial defects such as Huntington's disease (HD), cells of the striatum are particularly vulnerable to cell death, although the mechanisms by which this cell death is induced are unclear. Dopamine, found in high concentrations in the striatum, ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddn033
更新日期:2008-05-15 00:00:00
abstract::Spinal muscular atrophy (SMA) and amyotrophic lateral sclerosis (ALS) are among the most common motor neuron diseases to afflict the human population. A deficiency of the survival of motor neuron (SMN) protein causes SMA and is also reported to be an exacerbating factor in the development of ALS. However, pathways lin...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/dds174
更新日期:2012-08-01 00:00:00
abstract::The CFTR gene, in which more than 300 mutations have been described, displays a spectrum of mutations which varies according to ethnic and geographic origin of patients. In this paper we report an exhaustive study of the 27 exons and exon/intron boundaries of a sample of 35 CF patients from Bulgaria which is situated ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/3.1.57
更新日期:1994-01-01 00:00:00
abstract::Mitochondrial dysfunction plays an important role in the etiology of neurodegenerative diseases. However, the progressive nature of neuronal loss in genetic models of mitochondrial dysfunction suggests the presence of compensatory mechanisms promoting neuronal survival under these conditions. Here, we identified the e...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/dds500
更新日期:2013-03-01 00:00:00
abstract::Recent studies emphasize the importance of mRNA splicing in human genetic disease, as 20-30% of all disease-causing mutations are predicted to result in mRNA splicing defects. The plasticity of the mRNA splicing reaction has made these mutations attractive candidates for the development of therapeutics. Familial dysau...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddr333
更新日期:2011-11-01 00:00:00
abstract::Amelogenesis imperfecta (AI) describes a broad group of clinically and genetically heterogeneous inherited defects of dental enamel bio-mineralization. Despite identification of a number of genetic mutations underlying AI, the precise causal mechanisms have yet to be determined. Using a multi-disciplinary approach, we...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddq001
更新日期:2010-04-01 00:00:00
abstract::Spinocerebellar ataxia type 14 (SCA14) is an autosomal dominant disease caused by mutations in the gene encoding protein kinase C gamma (PKC gamma). We report an SCA14 family with a novel deletion of a termination-codon-containing region, resulting in a missense change and a C-terminal 13-amino-acid extension with inc...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddp298
更新日期:2009-10-01 00:00:00
abstract::Synapsin I (SynI) is a synaptic vesicle (SV) phosphoprotein playing multiple roles in synaptic transmission and plasticity by differentially affecting crucial steps of SV trafficking in excitatory and inhibitory synapses. SynI knockout (KO) mice are epileptic, and nonsense and missense mutations in the human SYN1 gene...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddt071
更新日期:2013-06-01 00:00:00
abstract::We describe a detection principle for indirect fluorescence in situ hybridization (FISH) methods that with only one or two antibody layers dramatically improves FISH signal intensities. The method uses as a first layer an anti-hapten immunoglobulin [or (strept)avidin] conjugated to peroxidase. The quintessence of the ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/4.4.529
更新日期:1995-04-01 00:00:00
abstract::CHARGE syndrome is a multiple congenital anomaly disorder that leads to life-threatening birth defects, such as choanal atresia and cardiac malformations as well as multiple sensory impairments, that affect hearing, vision, olfaction and balance. CHARGE is caused by heterozygous mutations in CHD7, which encodes an ATP...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddt435
更新日期:2014-01-15 00:00:00
abstract::Neurofibromatosis type 1 (NF1) is one of the most common inherited disorders. The gene responsible for the disease has a very high mutation rate, approximately fifty per cent of NF1 patients appear to have a de novo mutation. The search for mutations is hampered by the large size of the NF1 gene and up to date, relati...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/3.4.639
更新日期:1994-04-01 00:00:00
abstract::Spinocerebellar ataxia type 3 (SCA3) is a neurodegenerative disorder caused by a polyglutamine-encoding CAG repeat expansion in the ATXN3 gene. This expansion leads to misfolding and aggregation of mutant ataxin-3 (ATXN3) and degeneration of select brain regions. A key unanswered question in SCA3 and other polyglutami...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddx224
更新日期:2017-09-01 00:00:00
abstract::Complement receptor 1 (CR1) is an Alzheimer's disease (AD) susceptibility locus that also influences AD-related traits such as episodic memory decline and neuritic amyloid plaque deposition. We implemented a functional fine-mapping approach, leveraging intermediate phenotypes to identify functional variant(s) within t...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/dds054
更新日期:2012-05-15 00:00:00
abstract::Large expansions of hexanucleotide GGGGCC (G4C2) repeats (hundreds to thousands) in the first intron of the chromosome 9 open reading frame 72 (C9orf72) locus are the strongest known genetic factor associated with amyotrophic lateral sclerosis and frontotemporal lobar degeneration. Different hypotheses exist about the...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddy083
更新日期:2018-05-15 00:00:00
abstract::We have explored the National Center for Biotechnology Information (NCBI) single nucleotide polymorphisms (SNPs) database for a correlation between the density of putative SNPs, as well as SNPs that map to different chromosomal locations (ambiguously mapped SNPs), and segmental duplications of DNA in chromosome region...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/11.17.1987
更新日期:2002-08-15 00:00:00
abstract::Huntington's disease (HD) is caused by a polyglutamine expansion mutation in the huntingtin protein that confers a toxic gain-of-function and causes the protein to become aggregate-prone. Aggregate-prone proteins are cleared by macroautophagy, and upregulating this process by rapamycin, which inhibits the mammalian ta...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddm294
更新日期:2008-01-15 00:00:00
abstract::A large number of mutations in the gene encoding the catalytic subunit of mitochondrial DNA polymerase γ (POLγA) cause human disease. The Y955C mutation is common and leads to a dominant disease with progressive external ophthalmoplegia and other symptoms. The biochemical effect of the Y955C mutation has been extensiv...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddq565
更新日期:2011-03-15 00:00:00
abstract::Elevated blood pressure (BP) is a major global risk factor for cardiovascular disease. Genome-wide association studies have identified several genetic variants at the NPR3 locus associated with BP, but the functional impact of these variants remains to be determined. Here we confirmed, by a genome-wide association stu...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddx375
更新日期:2018-01-01 00:00:00
abstract::Andersen's syndrome (AS) is a rare and dominantly inherited pathology, linked to the inwardly rectifying potassium channel Kir2.1. AS patients exhibit a triad of symptoms that include periodic paralysis, cardiac dysrhythmia and bone malformations. Some progress has been made in understanding the contribution of the Ki...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu462
更新日期:2015-01-15 00:00:00
abstract::Determining the full complement of protein-coding genes is a key goal of genome annotation. The most powerful approach for confirming protein-coding potential is the detection of cellular protein expression through peptide mass spectrometry (MS) experiments. Here, we mapped peptides detected in seven large-scale prote...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu309
更新日期:2014-11-15 00:00:00
abstract::Mutations of the leucine-rich glioma-inactivated 1 (LGI1) gene cause an autosomal dominant partial epilepsy with auditory features also known as autosomal-dominant lateral temporal lobe epilepsy. LGI1 is also the main antigen present in sera and cerebrospinal fluids of patients with limbic encephalitis and seizures, h...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/dds184
更新日期:2012-08-15 00:00:00