Abstract:
:As genetic maps become denser, the effect of laboratory typing errors becomes more serious. We review a general method for detecting errors in pedigree genotyping data that is a variant of the likelihood-ratio test statistic. It pinpoints individuals and loci with relatively unlikely genotypes. Power and significance studies using Monte Carlo methods are shown by using simulated data with pedigree structures similar to the CEPH pedigrees and a larger experimental pedigree used in the study of idiopathic dilated cardiomyopathy (DCM). The studies show the index detects errors for small values of theta with high power and an acceptable false positive rate. The method was also used to check for errors in DCM laboratory pedigree data and to estimate the error rate in CEPH-chromosome 6 data. The errors flagged by our method in the DCM pedigree were confirmed by the laboratory. The results are consistent with estimated false-positive and false-negative rates obtained using simulation.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Ehm MG,Kimmel M,Cottingham RW Jrsubject
Has Abstractpub_date
1996-01-01 00:00:00pages
225-34issue
1eissn
0002-9297issn
1537-6605journal_volume
58pub_type
杂志文章abstract::A rare germ-line polymorphism in codon 47 of the p53 gene replaces the wild-type proline (CCG) with a serine (TCG). Restriction analysis of 101 human samples revealed the frequency of the rare allele to be 0% (n = 69) in Caucasians and 4.7% (3/64, n = 32) among African-Americans. To investigate the consequence of this...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1993-09-01 00:00:00
abstract::Plasma DNA fragmentomics is an emerging area in cell-free DNA diagnostics and research. In murine models, it has been shown that the extracellular DNase, DNASE1L3, plays a role in the fragmentation of plasma DNA. In humans, DNASE1L3 deficiency causes familial monogenic systemic lupus erythematosus with childhood onset...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2020.09.006
更新日期:2020-11-05 00:00:00
abstract::There are three endogamous subdivisions of the Hutterite population, a North American religious isolate. These individuals live on communal farms, and residence is strictly patrilocal. We report on the distributions of HLA-A and B alleles and haplotypes in 203 married women from one subdivision--the Dariusleut--in Alb...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1980-03-01 00:00:00
abstract::Alzheimer disease (AD) is the most common cause of dementia. We conducted a genome screen of 103 patients with late-onset AD who were ascertained as part of the Genetic Research in Isolated Populations (GRIP) program that is conducted in a recently isolated population from the southwestern area of The Netherlands. All...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/518720
更新日期:2007-07-01 00:00:00
abstract::Electrophoretic properties of eight lysosomal hydrolases and 36 nonlysosomal enzymes were investigated in cultured fibroblasts from children with the inherited storage disease mucolipidosis II (ML II); fibroblasts from a child with a related disorder, mucolipidosis III (ML III); and two obligate heterozygous cell line...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1977-03-01 00:00:00
abstract::Determining the mode of inheritance is often difficult under the best of circumstances, but when segregation analysis is used, the problems of ambiguous ascertainment procedures, reduced penetrance, heterogeneity, and misdiagnosis make mode-of-inheritance determinations even more unreliable. The mode of inheritance ca...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1994-10-01 00:00:00
abstract::We present a systematic review of pleiotropy among SNPs and genes reported to show genome-wide association with common complex diseases and traits. We find abundant evidence of pleiotropy; 233 (16.9%) genes and 77 (4.6%) SNPs show pleiotropic effects. SNP pleiotropic status was associated with gene location (p = 0.024...
journal_title:American journal of human genetics
pub_type: 杂志文章,评审
doi:10.1016/j.ajhg.2011.10.004
更新日期:2011-11-11 00:00:00
abstract::Prader-Willi syndrome (PWS) and Angelman syndrome (AS) are distinct neurobehavioral disorders that most often arise from a 4-Mb deletion of chromosome 15q11-q13 during paternal or maternal gametogenesis, respectively. At a de novo frequency of approximately.67-1/10,000 births, these deletions represent a common struct...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/302510
更新日期:1999-08-01 00:00:00
abstract::A subset of nuclear-encoded RNAs has to be imported into mitochondria for the proper replication and transcription of the mitochondrial genome and, hence, for proper mitochondrial function. Polynucleotide phosphorylase (PNPase or PNPT1) is one of the very few components known to be involved in this poorly characterize...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2012.09.002
更新日期:2012-11-02 00:00:00
abstract::Dermal fibroblasts from most individuals with osteogenesis imperfecta (OI) type I produce about half the normal amount of type I procollagen, as a result of decreased synthesis of one of its constituent chains, pro alpha 1 (I). To test the hypothesis that decreased synthesis of pro alpha (I) chains results from mutati...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1992-09-01 00:00:00
abstract::We tested 519 chromosome 3-specific cosmids for the presence of rare restriction-endonuclease sites in a search for cosmids containing HTF islands. We have identified 49 cosmids (9% of those tested) that contain multiple rare restriction-endonuclease sites. The cosmids were digested with several common cutting restric...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1991-09-01 00:00:00
abstract::Allan-Herndon-Dudley syndrome was among the first of the X-linked mental retardation syndromes to be described (in 1944) and among the first to be regionally mapped on the X chromosome (in 1990). Six large families with the syndrome have been identified, and linkage studies have placed the gene locus in Xq13.2. Mutati...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/431313
更新日期:2005-07-01 00:00:00
abstract::Genome-wide association studies (GWASs) have successfully identified thousands of genetic variants for many complex diseases; however, these variants explain only a small fraction of the heritability. Recently, genetic association studies that leverage external transcriptome data have received much attention and shown...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2018.03.019
更新日期:2018-05-03 00:00:00
abstract::We conducted a genomewide linkage screen of a simple heavy-smoking quantitative trait, the maximum number of cigarettes smoked in a 24-h period, using two independent samples: 289 Australian and 155 Finnish nuclear multiplex families, all of which were of European ancestry and were targeted for DNA analysis by use of ...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/513703
更新日期:2007-05-01 00:00:00
abstract::Retinitis pigmentosa (RP) is a group of disorders characterized by progressive degeneration of the outer retina, resulting in night blindness, visual field loss, an abnormal electroretinogram, and characteristic retinal pigmentary changes. An important step in the understanding of RP has been the recognition that some...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract::Monoamine oxidase (MAO) is a critical enzyme in the degradative deamination of biogenic amines throughout the body. Two biochemically distinct forms of the enzyme, A and B, are encoded in separate genes on the human X chromosome. In these studies we investigated the role of the structural gene for MAO-A in determining...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1991-08-01 00:00:00
abstract::Activating mutations in the genes for fibroblast growth factor receptors 1-3 (FGFR1-3) are responsible for a diverse group of skeletal disorders. In general, mutations in FGFR1 and FGFR2 cause the majority of syndromes involving craniosynostosis, whereas the dwarfing syndromes are largely associated with FGFR3 mutatio...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/427956
更新日期:2005-02-01 00:00:00
abstract::Treacher Collins syndrome (TCS) is an autosomal dominant disorder of craniofacial development, the features of which include conductive hearing loss and cleft palate. We have studied 12 unrelated TCS families with multiple affected individuals for linkage to five chromosome 5 markers. There is strong evidence demonstr...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1991-07-01 00:00:00
abstract::We previously reported the finding of phytosterolemia, xanthomatosis, and hyperapobetalipoproteinemia (hyperapoB) in five siblings in a large Amish pedigree ascertained through a 13-year-old boy who died suddenly from advanced coronary atherosclerosis. Here, we present further analyses of the plasma levels of the plan...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1986-04-01 00:00:00
abstract::The gene(s) whose expression is regulated by allergy risk variants is unknown for many loci identified through genome-wide association studies. Addressing this knowledge gap might point to new therapeutic targets for allergic disease. The aim of this study was to identify the target gene(s) and the functional variant(...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2015.06.010
更新日期:2015-08-06 00:00:00
abstract::Gilles de la Tourette syndrome is a neuropsychiatric disorder characterized by waxing and waning multiple motor and phonic tics with a complex mode of inheritance. Previous attempts, which used large multigenerational families to localize susceptibility loci, have been unsuccessful. In this report, the results of the ...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/302613
更新日期:1999-11-01 00:00:00
abstract::Neuroblastoma is a cancer of the developing sympathetic nervous system. It is diagnosed in 600-700 children per year in the United States and accounts for 12% of pediatric cancer deaths. Despite recent advances in our understanding of this malignancy's complex genetic architecture, the contribution of rare germline va...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2019.07.020
更新日期:2019-09-05 00:00:00
abstract::The dominant cerebellar ataxias (ADCAs) represent a clinically and genetically heterogeneous group of disorders linked by progressive deterioration in balance and coordination. The utility of genetic classification of the ADCAs has been highlighted by the striking variability in clinical phenotype observed within fami...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1997-04-01 00:00:00
abstract::SPG23 is an autosomal-recessive neurodegenerative subtype of lower limb spastic paraparesis with additional diffuse skin and hair dyspigmentation at birth followed by further patchy pigment loss during childhood. Previously, genome-wide linkage in an Arab-Israeli pedigree mapped the gene to an approximately 25 cM locu...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2017.01.014
更新日期:2017-02-02 00:00:00
abstract::Polymorphisms of the vitamin D receptor gene (VDR) have been shown to be associated with several complex diseases, including osteoporosis, but the mechanisms are unknown and study results have been inconsistent. We therefore determined sequence variation across the major relevant parts of VDR, including construction o...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/497438
更新日期:2005-11-01 00:00:00
abstract::To define Y-chromosome haplotypes, we studied seven biallelic polymorphic sites. We combined data with those from four dinucleotide-repeat polymorphisms, to establish Y-chromosome compound superhaplotypes. Eight biallelic haplotypes that matched the dendrogram proposed by other investigators were identified in 762 Y c...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/302538
更新日期:1999-09-01 00:00:00
abstract::To establish the contribution of germline BRCA1 and BRCA2 mutations to familial ovarian cancer, we have analyzed both genes in DNA samples obtained from an affected individual in each of 112 families containing at least two cases of epithelial ovarian cancer. Germline mutations were found in 43% of the families; BRCA1...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/302583
更新日期:1999-10-01 00:00:00
abstract::Duplications of proximal 15q have been found in individuals with autistic disorder (AD) and varying degrees of mental retardation. Often these abnormalities take the form of a supernumerary inverted duplicated chromosome 15, more properly described as an isodicentric chromosome 15, or idic(15). However, intrachromosom...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1997-04-01 00:00:00
abstract::Acid sphingomyelinase (ASM) is the lipid hydrolase that is deficient in types A and B Niemann-Pick disease (NPD). Here, we demonstrate that the gene encoding ASM (SMPD1) is paternally imprinted and that differential expression of the mutant alleles in patients with ASM-deficient NPD and in carriers influences the dise...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/503750
更新日期:2006-05-01 00:00:00
abstract::Case-control studies compare marker-allele distributions in affected and unaffected individuals, and significant results suggest linkage but may simply reflect population structure. For markers with m alleles (m > or = 2), a McNemar-like statistic, I, estimates the level of population association between marker and di...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1997-03-01 00:00:00