Abstract:
:Human embryo development occurs through a process that encompasses reprogramming, sequential cleavage divisions and mitotic chromosome segregation and embryonic genome activation. Chromosomal abnormalities may arise during germ cell and/or pre-implantation embryo development, and are a major cause of spontaneous miscarriage or birth defects. Nonetheless, model systems suitable for the study of human germ cell and embryo development have been limited until recently. We suggest that human embryonic stem cells may provide a valuable human cell-based model for genetic studies of human pre-implantation pluripotent cells. Here, we review the current literature on diagnosing chromosomal abnormalities in the pre-implantation embryo, and the importance of provisions from the human oocyte in establishing and maintaining the human embryonic genome during the first 3 days post-conception. We focus on transcriptional analysis of human oocytes and embryos and the unique cell cycle and checkpoint requirements in the early embryo. Taken together, data suggest that the unique programs of the early human embryo, including management of aneuploid cells, may paradoxically promote embryo development but contribute to the high rate of spontaneous miscarriages in human pregnancies.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Ambartsumyan G,Clark ATdoi
10.1093/hmg/ddn170subject
Has Abstractpub_date
2008-04-15 00:00:00pages
R10-5issue
R1eissn
0964-6906issn
1460-2083pii
ddn170journal_volume
17pub_type
杂志文章,评审abstract::Multiple mitochondrial DNA deletions are associated with clinically heterogeneous disorders transmitted as mendelian traits. Dominant missense mutations were found in the gene encoding the heart and skeletal muscle-specific isoform of the adenine nucleotide translocator (ANT1) in families with autosomal dominant progr...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddi341
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abstract::PTEN-induced putative kinase 1 (PINK1) and Parkin act in a common pathway to regulate mitochondrial dynamics, the involvement of which in the pathogenesis of Parkinson's disease (PD) is increasingly being appreciated. However, how the PINK1/Parkin pathway influences mitochondrial function is not well understood, and t...
journal_title:Human molecular genetics
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abstract::Southern blot analysis of the COL4A5 gene in a 6 year old Italian Alport patient (proband VIZ) showed the loss of an MspI site that was present in the mother and control DNAs. PCR amplification and DNA sequencing revealed a single G-->A nucleotide change. The mutation results in substitution of a glutamic acid for a g...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/1.2.127
更新日期:1992-05-01 00:00:00
abstract::Mutations in the WNK1 gene cause Gordon's syndrome, a rare Mendelian form of hypertension. We assessed whether common WNK1 variants might also contribute to essential hypertension (EH), a multifactorial disorder affecting > 25% of the adult population worldwide. A panel of 19 single nucleotide polymorphisms (SNPs) spa...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddi187
更新日期:2005-07-01 00:00:00
abstract::Two common inflammatory skin disorders with impaired barrier, atopic dermatitis (AD) and psoriasis, share distinct genetic linkage to the Epidermal Differentiation Complex (EDC) locus on 1q21. The EDC is comprised of tandemly arrayed gene families encoding proteins involved in skin cell differentiation. Discovery of s...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddq019
更新日期:2010-04-15 00:00:00
abstract::γ-secretase is a macromolecular complex that catalyzes intramembranous hydrolysis of more than 100 membrane-bound substrates. The complex is composed of presenilin (PS1 or PS2), anterior pharynx defect-1 (APH-1), nicastrin (NCT) and PEN-2 and early-onset; autosomal dominant forms of Alzheimer's disease (AD) are caused...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddaa017
更新日期:2020-04-15 00:00:00
abstract::Polyglutamine expansion in certain proteins causes neurodegeneration in inherited disorders such as Huntington disease and X-linked spinobulbar muscular atrophy. Polyglutamine tracts promote protein aggregation in vitro and in vivo with a strict length-dependence that strongly implicates alternative protein folding an...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddl135
更新日期:2006-07-01 00:00:00
abstract::The biogenesis of the mitochondrial inner membrane is dependent on two distinct 70 kDa protein complexes. TIMM8a partners with TIMM13 in the mitochondrial intermembrane space to form a 70 kDa complex and facilitates the import of the inner membrane substrate TIMM23. We have identified a new class of substrates, citrin...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddh217
更新日期:2004-09-15 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::The positions of DNA replication initiation regions (IRs) at three human trinucleotide repeat (TNR) disease loci were examined in order to characterize the role played by IRs in explaining the known locus-specific variation in TNR instability levels. Using three different normal cell lines, candidate IRs were identifi...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddg111
更新日期:2003-05-01 00:00:00
abstract::Primary pigmented nodular adrenocortical disease (PPNAD) is associated with inactivating mutations of the PRKAR1A tumor suppressor gene that encodes the regulatory subunit R1α of the cAMP-dependent protein kinase (PKA). In human and mouse adrenocortical cells, these mutations lead to increased PKA activity, which resu...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu265
更新日期:2014-10-15 00:00:00
abstract::The fragile X syndrome results from transcriptional silencing of the FMR1 gene and the absence of its encoded FMRP protein. Two autosomal homologues of the FMR1 gene, FXR1 and FXR2, have been identified and the overall structures of the corresponding proteins are very similar to that of FMRP. Using antibodies raised a...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/7.13.2121
更新日期:1998-12-01 00:00:00
abstract::Proximal spinal muscular atrophy (SMA) is a neuromuscular disorder for which there is no available therapy. SMA is caused by loss or mutation of the survival motor neuron 1 gene, SMN1, with retention of a nearly identical copy gene, SMN2. In contrast to SMN1, most SMN2 transcripts lack exon 7. This alternatively splic...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddp030
更新日期:2009-04-01 00:00:00
abstract::We have constructed a long-range restriction map of the region on chromosome 4q that contains the gene for facioscapulohumeral muscular dystrophy (FSHD). This region contains the linkage group cen ... D4S163-D4S139-D4F35S1-D4F104S1-FSHD ... 4qter, which spans a genetic distance of about 5 cM. Pulse field gel electroph...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/2.10.1667
更新日期:1993-10-01 00:00:00
abstract::Recent genome-wide association studies (GWAS) and subsequent meta-analyses have identified over 25 SNPs at 18 loci, together accounting for >15% of the genetic susceptibility to testicular germ cell tumour (TGCT). To identify further common SNPs associated with TGCT, here we report a three-stage experiment, involving ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu511
更新日期:2015-02-15 00:00:00
abstract::Protein engineering is a means to optimize protein therapeutics developed for the treatment of so far incurable diseases including cancers and genetic disorders. Here we report on an engineering approach in which we successfully increased the catalytic rate constant of an enzyme that is presently evaluated in enzyme r...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddz020
更新日期:2019-06-01 00:00:00
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 hy...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddi484
更新日期:2006-03-01 00:00:00
abstract::Parkin E3 ubiquitin-ligase activity and its role in mitochondria homeostasis are thought to play a role in Parkinson's disease (PD). We now report that AF-6 is a novel parkin interacting protein that modulates parkin ubiquitin-ligase activity and mitochondrial roles. Parkin interacts with the AF-6 PDZ region through i...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddt058
更新日期:2013-05-15 00:00:00
abstract::Adolescent idiopathic scoliosis (AIS) is a complex inherited spinal deformity whose etiology has been elusive. While common genetic variants are associated with AIS, they explain only a small portion of disease risk. To explore the role of rare variants in AIS susceptibility, exome sequence data of 391 severe AIS case...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddv463
更新日期:2016-01-01 00:00:00
abstract::Anti-Müllerian hormone (AMH) is an essential messenger of sexual differentiation in the foetus and is an emerging biomarker of postnatal reproductive function in females. Due to a paucity of adequately sized studies, the genetic determinants of circulating AMH levels are poorly characterized. In samples from 2815 adol...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddv465
更新日期:2016-01-15 00:00:00
abstract::Autosomal dominant familial spastic paraplegia (FSP) is a genetically heterogeneous neurodegenerative disorder displaying anticipation for which three loci have been mapped to the chromosomal positions 14q11.2-q24.3 (SPG3), 2p21-p24 (SPG4) and 15q11.1 (SPG6). The repeat expansion detection (RED) method has been used t...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/7.11.1779
更新日期:1998-10-01 00:00:00
abstract::Ciliary trafficking defects are the underlying cause of many ciliopathies, including Retinitis Pigmentosa (RP). Anterograde intraflagellar transport (IFT) is mediated by kinesin motor proteins; however, the function of the homodimeric Kif17 motor in cilia is poorly understood, whereas Kif7 is known to play an importan...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddx143
更新日期:2017-07-01 00:00:00
abstract::Spinal muscular atrophy (SMA) is a neuromuscular disease caused by mutations in survival motor neuron 1 (SMN1). SMN-restoring therapies have recently emerged; however, preclinical and clinical studies revealed a limited therapeutic time window and systemic aspects of the disease. This raises a fundamental question of ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddaa146
更新日期:2020-09-29 00:00:00
abstract::Von Hippel-Lindau (VHL) disease is a dominantly inherited familial cancer syndrome in which affected individuals have a greatly increased predisposition to the development of haemangioblastomas of the central nervous system and retina, renal cell carcinoma and phaeochromocytoma. The VHL gene has been mapped to chromos...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/2.7.879
更新日期:1993-07-01 00:00:00
abstract::Gene amplification is a common phenomenon in malignant neoplasms of all types. One mechanism behind increased gene copy number is the formation of ring chromosomes. Such structures are mitotically unstable and during tumor progression they accumulate material from many different parts of the genome. Hence, their conte...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddt479
更新日期:2014-02-15 00:00:00
abstract::A genetic contribution to the development of age-related macular degeneration (AMD) is well established. Several genome-wide linkage studies have identified a number of putative susceptibility loci for AMD but only a few of these regions have been replicated in independent studies. Here, we perform a meta-analysis of ...
journal_title:Human molecular genetics
pub_type: 杂志文章,meta分析
doi:10.1093/hmg/ddi230
更新日期:2005-08-01 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::We performed a whole genome microsatellite marker scan in six multiplex families with bipolar (BP) mood disorder ascertained in Antioquia, a historically isolated population from North West Colombia. These families were characterized clinically using the approach employed in independent ongoing studies of BP in the cl...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddl254
更新日期:2006-11-01 00:00:00
abstract::An increased rate of de novo copy number variants (CNVs) has been found in schizophrenia (SZ), autism and developmental delay. An increased rate has also been reported in bipolar affective disorder (BD). Here, in a larger BD sample, we aimed to replicate these findings and compare de novo CNVs between SZ and BD. We us...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu379
更新日期:2014-12-15 00:00:00
abstract::Epilepsy is a serious and common neurological disorder. Expression quantitative loci (eQTL) analysis is a vital aid for the identification and interpretation of disease-risk loci. Many eQTLs operate in a tissue- and condition-specific manner. We have performed the first genome-wide cis-eQTL analysis of human hippocamp...
journal_title:Human molecular genetics
pub_type: 杂志文章,meta分析
doi:10.1093/hmg/ddx061
更新日期:2017-05-01 00:00:00