Abstract：
:Familial adenomatous polyposis (FAP) is a premalignant disease inherited as an autosomal dominant trait, characterized by hundreds to thousands of polyps in the colorectal tract. Recently, the syndrome has been shown to be caused by mutations in the APC (adenomatous polyposis coli) gene located on chromosome 5q21. We studied two families that both presented a phenotype different than that of the classical form of FAP. The most important findings observed in these two kindreds are (a) low and variable number of colonic polyps (from 5 to 100) and (b) a slower evolution of the disease, with colon cancer occurring at a more advanced age than in FAP in spite of the early onset of intestinal manifestations. To determine whether mutations of the APC gene are also responsible for this variant syndrome, linkage studies were performed by using a series of markers both intragenic and tightly linked to the APC gene. The results provide evidence for exclusion of the APC gene as the cause of the variant form of polyposis present in the two families described.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Stella A,Resta N,Gentile M,Susca F,Mareni C,Montera MP,Guanti Gsubject
Has Abstractpub_date
1993-11-01 00:00:00pages
1031-7issue
5eissn
0002-9297issn
1537-6605journal_volume
53pub_type
杂志文章abstract：:Linkage markers at or close to the genes encoding the three major fibrillar collagens were used to analyze the segregation of these loci in six pedigrees with dominantly inherited Marfan syndrome. Four pedigrees were discordant at one of the Type I collagen loci (COL1A2), and, of these, two were discordant at the othe...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1987-12-01 00:00:00
abstract：:The mode of inheritance of bipolar affective disorder (BPAD) appears complex, and non-Mendelian models of inheritance have been postulated. Two non-Mendelian phenomena, genomic imprinting and mitochondrial inheritance, may contribute to the complex inheritance pattern seen in BPAD. Both imprinting and mitochondrial in...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1995-06-01 00:00:00
abstract：:The human genetics community needs robust protocols that enable secure sharing of genomic data from participants in genetic research. Beacons are web servers that answer allele-presence queries--such as "Do you have a genome that has a specific nucleotide (e.g., A) at a specific genomic position (e.g., position 11,272...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2015.09.010
更新日期：2015-11-05 00:00:00
abstract：:An astonishing amount of behavioral variation is captured within the more than 350 breeds of dog recognized worldwide. Inherent in observations of dog behavior is the notion that much of what is observed is breed specific and will persist, even in the absence of training or motivation. Thus, herding, pointing, trackin...
journal_title：American journal of human genetics
pub_type： 杂志文章,评审
doi：10.1016/j.ajhg.2007.12.001
更新日期：2008-01-01 00:00:00
abstract：:Autosomal dominant retinitis pigmentosa (ADRP) has recently been linked to locus D3S47 (probe C17), with no recombination, in a single large Irish family. Other ADRP pedigrees have shown linkage at zero recombination, linkage with recombination, and no linkage, demonstrating genetic heterogeneity. The gene encoding rh...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:Mild osteogenesis imperfecta (OI type I and OI type IV) is characterized by postnatal onset of fractures, absence of skeletal deformity, presenile hearing loss with or without blue sclerae, and dentinogenesis imperfecta. Using one common DNA polymorphism associated with the pro alpha 2(I) human collagen gene, we found...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1984-11-01 00:00:00
abstract：:The decreasing cost of whole-genome and whole-exome sequencing has resulted in a renaissance for identifying Mendelian disease mutations, and for the first time it is possible to survey the distribution and characteristics of these mutations in large population samples. We conducted carrier screening for all autosomal...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2012.08.007
更新日期：2012-10-05 00:00:00
abstract：:We describe a maternally transmitted genomic-imprinting syndrome of mental retardation, hypotonia, and unique dysmorphism with elongated face. We mapped the disease-associated locus to approximately 7.27 Mb on chromosome 8q24 and demonstrated that the disease is caused by a missense mutation in the maternal copy of KC...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2008.07.010
更新日期：2008-08-01 00:00:00
abstract：:To quantify the effect of the apolipoprotein (apo) E polymorphism on the magnitude of postprandial lipemia, we have defined its role in determining the response to a single high-fat meal in a large sample of (N = 474) individuals taking part in the biethnic Atherosclerosis Risk in Communities Study. The profile of pos...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1994-02-01 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：:Seventy-seven Ethiopians were investigated for mtDNA and Y chromosome-specific variations, in order to (1) define the different maternal and paternal components of the Ethiopian gene pool, (2) infer the origins of these maternal and paternal lineages and estimate their relative contributions, and (3) obtain informatio...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/301702
更新日期：1998-02-01 00:00:00
abstract：:A mutation involving an A-to-G nucleotide replacement at position 985 of the medium-chain acyl-CoA dehydrogenase (MCAD) cDNA was found in homozygous form in 18 unrelated MCAD-deficient families and in heterozygous form in 4 families. By PCR amplification and sequencing of cDNA from a compound heterozygote, we have det...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:The Coffin-Lowry syndrome (CLS) is an X-linked inherited disease of unknown pathogenesis characterized by severe mental retardation, typical facial and digital anomalies, and progressive skeletal deformations. Our previous linkage analysis, based on four pedigrees with the disease, suggested a localization for the CLS...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1992-05-01 00:00:00
abstract：:In recent years, many genomewide screens have been performed, to identify novel loci predisposing to various complex diseases. Often, only a portion of the collected clinical data from the study subjects is used in the actual analysis of the trait, and much of the phenotypic data is ignored. With proper consent, these...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/321286
更新日期：2001-07-01 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：:Lysinuric protein intolerance (LPI) is an autosomal recessive disease characterized by defective transport of cationic amino acids and by hyperammonemia. Linkage analysis in 20 Finnish LPI families assigned the LPI gene locus to the proximal long arm of chromosome 14. Recombinations placed the locus between framework ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/515457
更新日期：1997-06-01 00:00:00
abstract：:Quantitative predictions of rates of Down syndrome offspring as a function of maternal serum alpha-fetoprotein (MSAFP) values and of maternal age were reviewed. Comparisons were made of 35-year-equivalent-risk values by maternal age, that is, MSAFP values (at various maternal ages) that predict the risk (of a Down syn...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1988-08-01 00:00:00
abstract：:Both sequence variation and copy-number variation (CNV) of the genes encoding receptors for immunoglobulin G (Fcγ receptors) have been genetically and functionally associated with a number of autoimmune diseases. However, the molecular nature and evolutionary context of this variation is unknown. Here, we describe the...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2012.04.018
更新日期：2012-06-08 00:00:00
abstract：:The recent cloning of cDNA encoding the Ca++ release channel (ryanodine receptor) of human sarcoplasmic reticulum has enabled us to use somatic cell hybrids to localize the ryanodine receptor gene (RYR) to the proximal long arm of human chromosome 19. Studies with additional hybrids containing deletions or translocati...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1990-06-01 00:00:00
abstract：:At least 40% of families affected with cerebral cavernous malformation have a mutation in Krit1. We previously identified two point mutations in Krit1 leading to changes in amino acids (D137G and Q210E) in two different families. Further RNA analysis reveals that both point mutations actually activate cryptic splice-d...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/340604
更新日期：2002-06-01 00:00:00
abstract：:Central core disease (CCO) is an autosomal dominant myopathy clinically distinct from malignant hyperthermia (MHS). In a large kindred in which the gene for CCO is segregating, two-point linkage analysis gave a maximum lod score, between the central core disease locus (CCO) and the ryanodine receptor locus (RYR1), of ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1993-02-01 00:00:00
abstract：:A novel type IV collagen, alpha 3(IV), has recently been identified in human and bovine basement membranes. Here we describe the cloning and sequencing of a cDNA encoding 218 residues of the NC1 domain of the human alpha 3(IV) chain. Of interest is the possible role of abnormalities of the alpha 3(IV) chain in Alport ...
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：:Congenital universal muscular hypoplasia has been confused with similar diseases in the past. Evidence presented in this paper distinguishes this disorder from other phenotypically similar ones and indicates that it is inherited as an autosomal recessive disorder. ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1979-09-01 00:00:00
abstract：:Linkage analysis using maximum-likelihood estimation is a powerful tool for locating genes. As available data sets have grown, the computation required for analysis has grown exponentially and become a significant impediment. Others have previously shown that parallel computation is applicable to linkage analysis and ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1993-07-01 00:00:00
abstract：:Primary defects in motile cilia result in dysfunction of the apparatus responsible for generating fluid flows. Defects in these mechanisms underlie disorders characterized by poor mucus clearance, resulting in susceptibility to chronic recurrent respiratory infections, often associated with infertility; laterality def...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2018.10.003
更新日期：2018-11-01 00:00:00
abstract：:Meiotic recombination is essential for the segregation of chromosomes and the formation of normal haploid gametes, yet we know very little about the meiotic process in humans. We present the first (to our knowledge) recombination maps for every autosome in the human male obtained by new immunofluorescence techniques f...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/382138
更新日期：2004-03-01 00:00:00
abstract：:Nijmegen breakage syndrome (NBS; Seemanová II syndrome) and Berlin breakage syndrome (BBS), also known as ataxia-telangiectasia variants, are two clinically indistinguishable autosomal recessive familial cancer syndromes that share with ataxia-telangiectasia similar cellular, immunological, and chromosomal but not cli...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1997-03-01 00:00:00
abstract：:A cloned 2.2 Eco RI segment of interspersed repetitive DNA was hybridized to genomic DNA from a mentally retarded patient with an interstitial deletion in the long arm of one chromosome 12 (12q-). Under hybridization conditions of high stringency, one prominent 2.2-kilobase (kb) Eco RI fragment demonstrated reduced au...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1984-07-01 00:00:00
abstract：:Microsatellites are a major type of molecular markers in genetics studies. Their mutational dynamics are not clear. We investigated the patterns and characteristics of 97 mutation events unambiguously identified, from 53 multigenerational pedigrees with 630 subjects, at 362 autosomal dinucleotide microsatellite loci. ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/338997
更新日期：2002-03-01 00:00:00
abstract：:Margarita Island ectodermal dysplasia (ED4) is an autosomal recessive disorder characterized by unusual facies, dental anomalies, hypotrichosis, palmoplantar hyperkeratosis and onychodysplasia, syndactyly, and cleft lip/cleft palate. We have used an affected-only DNA-pooling strategy to carry out linkage disequilibriu...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/302072
更新日期：1998-10-01 00:00:00
