Abstract:
:A role for BRCA1 and BRCA2 in the control of genome integrity easily fits a tumor suppressor model. It is well established that mutations in DNA repair genes lead to genomic instability (138). Genomic instability may directly lead to tumorigenesis by allowing for the accumulation of mutations in key cell cycle regulators (139). The studies summarized here suggest that BRCA1, BRCA2, RAD51. and BARD1 function as a biochemical complex. This complex apparently plays a role in one or more of the DNA damage response pathways. Experimental data suggest that BRCA1 and BRCA2 function as regulators of transcription. These observations highlight some of the fundamental questions that remain to be addressed in the study of the biology of these genes. Are the DNA repair and transcriptional regulatory functions of BRCA1 and BRCA2 related? BRCA1 and BRCA2 may maintain the integrity of the genome by regulating expression of genes directly involved in this process. Alternatively, if the functions are not related, which is required for suppression of tumorigenesis? Researchers also are grappling with another paradox. If BRCA1 and BRCA2 are ubiquitously expressed, why do mutations in BRCA1 and BRCA2 lead specifically to tumors primarily of the breast and ovary, as well as a limited number of other tissues to a lesser degree? Nothing to date has been revealed that would explain how alteration of the transcriptional regulatory function and or the DNA repair function ascribed to BRCA1 and BRCA2 would result in tumor specificity as both of these functions are essential to a broad spectrum of tissues. It is possible that BRCAI and BRCA2 may regulate genes expressed only in the breast and ovary. Similarly, there may be unidentified BRCA1 and BRCA2 co-factors that are active only in the breast and ovary and, therefore, are critical to tumorigenesis. All breast cancer is genetic, although only a small fraction of cases are attributable to inherited genetic predisposition. Most breast cancer is due to genetic alterations that are specific to breast epithelial cells, many of which remain unknown. Integration of genetic approaches into research designed to elucidate biological pathways of breast cancer tumorigenesis will ultimately lead to new information critical to the development of new tools for the diagnosis and treatment of disease.
journal_name
Clin Genetjournal_title
Clinical geneticsauthors
Welcsh PL,Schubert EL,King MCdoi
10.1111/j.1399-0004.1998.tb03764.xsubject
Has Abstractpub_date
1998-12-01 00:00:00pages
447-58issue
6eissn
0009-9163issn
1399-0004journal_volume
54pub_type
杂志文章,评审abstract::One hundred and eighty-one male and 48 female myocardial infarction (MI) survivors and 172 male and 194 female controls were studied with respect to a possible association between premature parental MI (before age 61 years in mothers and/or before age 56 years in fathers) and an insertion/deletion (I/D) polymorphism i...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1993.tb03904.x
更新日期:1993-12-01 00:00:00
abstract:BACKGROUND:In addition to whole exomes, large gene panels of clinically associated genes are used as high-throughput sequencing tests in many clinical centers, but their clinical utility has been much less investigated. MATERIALS AND METHODS:Here we report the results of the 501 first unselected cases for whom TruSigh...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.13031
更新日期:2018-01-01 00:00:00
abstract::Complex genetic diseases are often common: in most common diseases liability is influenced by genetic variation. The ways in which this variation is analyzed are discussed using diabetes, affective disorders and schizophrenia as examples. Molecular biology has opened new paths for a more incisive analysis of genetic h...
journal_title:Clinical genetics
pub_type: 杂志文章,评审
doi:10.1111/j.1399-0004.1989.tb03218.x
更新日期:1989-11-01 00:00:00
abstract::Kyphomelic dysplasia is a rare form of generalized skeletal dysplasia with about 15 cases described so far in the literature. We present the clinical, radiological, and pathological findings of an antenatally detected female fetus affected with this disorder. The differential diagnoses of prenatal and perinatal semile...
journal_title:Clinical genetics
pub_type: 杂志文章,评审
doi:10.1034/j.1399-0004.2000.580510.x
更新日期:2000-11-01 00:00:00
abstract::A set of 15 surface measurements taken directly from the craniofacial region were determined in 51 patients with Waardenburg syndrome type I (WSI). A roentgencephamometric analysis including 20 linear dimensions was also performed by the use of cephalograms of 28 patients. Pairs between patients and controls of the sa...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1993.tb03836.x
更新日期:1993-07-01 00:00:00
abstract::Failure to thrive (FTT) causes significant morbidity, often without clear etiologies. Six individuals of a large consanguineous family presented in the neonatal period with recurrent vomiting and diarrhea, leading to severe FTT. Standard diagnostic work up did not ascertain an etiology. Autozygosity mapping and whole ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.13883
更新日期:2020-11-15 00:00:00
abstract::We have conducted a study to assess the opinions of parents of individuals with mucopolysaccharidoses (MPS) and adults with MPS regarding newborn screening (NBS) for this condition, as testing is now technically possible. A questionnaire including a number of hypothetical clinical scenarios about NBS for MPS was distr...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.2007.00783.x
更新日期:2007-05-01 00:00:00
abstract::The logistic regression model is a popular model for data analysis in epidemiological research. In this paper, we use this model to analyze genetic data collected from gene-longevity association studies. This new approach models the probability of observing one genotype as a function of the age of investigated individ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1034/j.1399-0004.2001.600610.x
更新日期:2001-12-01 00:00:00
abstract::In order to evaluate the involvement of the peripheral autonomic nervous system in the pathogenesis of type 1 familial amyloid polyneuropathy, the urinary excretion rates of catecholamines and serum dopamine-beta-hydroxylase (DB/) activity were examined in 22 patients at various clinical stages. Changes in both indice...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1979.tb00860.x
更新日期:1979-08-01 00:00:00
abstract::A linkage study was carried out in nine families with 24 males affected by X-linked recessive retinoschisis (RS), using three polymorphic DNA probes from the distal segment of Xp. Close linkage of the disease locus with markers DXS41 (probe p99-6) and DXS16 (pXUT23) was found, confirming the location of the RS gene on...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1987.tb03353.x
更新日期:1987-09-01 00:00:00
abstract::Clinical evaluation of a 13 1/2-year-old male revealed a 4.4-cm leg length discrepancy and a small penis with a normal endocrine evaluation. Cytogenetic analysis of peripheral blood lymphocytes and skin fibroblasts derived from the back showed 45,X/46,XY mosaicism with similar percentages of 45,X cells, 36% and 30% re...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1991.tb03084.x
更新日期:1991-09-01 00:00:00
abstract::We describe 2 patients with Angelman syndrome (AS) due to paternal uniparental disomy (UPD). One patient is a female aged 30 years and the other a male aged 4 1/2 years. Both have the characteristic wide mouth and big chin, moderate mental retardation, virtually no speech but some 30 words of sign language and a happy...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1998.tb02682.x
更新日期:1998-03-01 00:00:00
abstract::Two cases of previously unreported simultaneous presence of A and B postaxial polydactyly in two brothers out of 12 affected members of a kindred are reported. The findings are consistent with the hypothesis that in this family A and b types of postaxial polydactyly are caused by a single gene rather than by two diffe...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1980.tb02294.x
更新日期:1980-11-01 00:00:00
abstract::The Troyer syndrome was found by Cross & McKusick (1967) in 20 members of 12 Old Order Amish families in Holmes County, Ohio; it is a form of hereditary spastic paraplegia combined with distal muscle wasting, i.e. signs of involvement of lower motor neurons. The condition usually begins at 1 to 2 years and progresses ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1976.tb01580.x
更新日期:1976-03-01 00:00:00
abstract::Thirty-six families with tuberous sclerosis (TS) including 49 affected persons and 68 apparently unaffected first-degree relatives were examined for dental abnormality. Fifty unrelated controls were similarly examined. Clinically observed multiple enamel pits (pitted enamel hypoplasia) were noted in 71% of persons wit...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1987.tb03304.x
更新日期:1987-10-01 00:00:00
abstract::Mitochondria are the largest generator of ATP in the cell. It is therefore expected that energy-requiring processes such as oocyte maturation, early embryonic or fetal development, would be adversely impacted in case of mitochondrial deficiency. Human mitochondrial DNA (mtDNA) mutations constitute a spontaneous model ...
journal_title:Clinical genetics
pub_type: 杂志文章,评审
doi:10.1111/cge.12557
更新日期:2015-11-01 00:00:00
abstract::Details are presented of a boy with partial lipodystrophy. Only one male case has previously been described with this condition. The spectrum of partial lipodystrophy syndromes and the inheritance thereof are discussed in relation to our case. ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1990.tb03602.x
更新日期:1990-11-01 00:00:00
abstract::The D/I (deletion, D, insertion, I) polymorphism of the angiotensin-converting enzyme (ACE) gene has been extensively studied for its association with a number of cardiovascular and other disease states. However, its potential association with differential clinical efficacy of ACE inhibitors (ACE-I) administered to pa...
journal_title:Clinical genetics
pub_type: 临床试验,杂志文章
doi:10.1034/j.1399-0004.2002.610104.x
更新日期:2002-01-01 00:00:00
abstract::Most but not all epidemiologic studies have shown that lipoprotein(a) [Lp(a)] is a risk factor for cardiovascular disease (CVD). Lp(a) levels are also strongly genetically influenced. The purpose of this study was to evaluate the association between Lp(a) levels in adult offspring and parental CVD mortality in 61 kind...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1034/j.1399-0004.2001.600304.x
更新日期:2001-09-01 00:00:00
abstract::Amniocentesis for advanced maternal age resulted in the demonstration of a supernumerary microchromosome in the amniotic fluid cells. Cytogenetic analysis of peripheral blood from the female infant revealed a mosaic karyotype 46,XX/47,XX, + marker. The only anomaly noted in the infant was talipes equinovarus. ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1984.tb01092.x
更新日期:1984-11-01 00:00:00
abstract::In a country-wide screening examination in Sweden, PKU was observed in 75 (4.5 per 1,000) and hyperphenylalaninemia in 14 (0.8 per 1,000) of a total of 16,805 patients in institutions for the mentally retarded. In the national neonatal screening program in 1965-1975, which covered nearly 1 million individuals, PKU was...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1976.tb00054.x
更新日期:1976-12-01 00:00:00
abstract::Phenotypic expression of the 47,XYY chromosome complement in man has been investigated mostly in terms of the central nervous system. Evidence is presented here to suggest that urinary tract malformation may be a component of the XYY syndrome; this should be taken into account when counselling parents of children wit...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1978.tb02104.x
更新日期:1978-12-01 00:00:00
abstract::An aneuploid karyotype with an extra submetacentric C-group chromosome was observed in all metaphase cells in 5 of 24 primary amniotic fluid cell clones and in admixture with normal cells in two additional clones. Trisomy 8 was demonstrated by R-banding. The parents elected to terminate the pregnancy. Successful cultu...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1981.tb01033.x
更新日期:1981-10-01 00:00:00
abstract::To obtain insight into the genetic variation of the low-density lipoprotein (LDL) receptor gene in Korean patients with familial hypercholesterolemia (FH), we used single-strand conformation polymorphism to screen all 18 exons and a promotor of the LDL receptor gene in 20 unrelated Korean FH patients. Four novel point...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1034/j.1399-0004.2000.570309.x
更新日期:2000-03-01 00:00:00
abstract::It has been suggested that patients with autosomal recessive merosin deficient congenital muscular dystrophy (CMD), as opposed to the merosin positive cases form a homogeneous subgroup of a clinically more severe form of CMD. We examined merosin expression in muscle biopsies from five children with the severe classica...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1998.tb04283.x
更新日期:1998-09-01 00:00:00
abstract::Genetic studies as well as in situ hybridisation data have strongly demonstrated that the genes coding for apoprotein(a) and plasminogen are linked and localised to chromosome 6 at band 6q26-27. We describe in this report the presence of a recombination event in a region of approximately 50 kb of DNA separating the tw...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1995.tb03966.x
更新日期:1995-06-01 00:00:00
abstract::We describe a family with recurrent 11q23-qter deletion Jacobsen syndrome in two affected brothers, with unique mosaic deletion 'rescue' through development of uniparental disomy (UPD) in the mother and one of the brothers. Inheritance studies show that the deleted chromosome is of maternal origin in both boys, and mi...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.12164
更新日期:2014-04-01 00:00:00
abstract::Cross syndrome is a rare syndrome characterized by ocular and cutaneous hypopigmentation and neurological manifestations. A few reports have been published since 1967. In this report, we present a new case of Cross syndrome with additional findings such as urinary tract abnormality, bilateral inguinal hernia, focal in...
journal_title:Clinical genetics
pub_type: 杂志文章,评审
doi:10.1111/j.1399-0004.1997.tb02432.x
更新日期:1997-02-01 00:00:00
abstract::We describe the neurological evaluation and MRI analysis of 30 patients, belonging to 16 families with Usher syndrome (US) type I and type II (US1 and US2). In addition to the classic visual and audiological abnormalities seen in these patients, we observed abnormal gait in 88.9% of US1 and in 66.7% of US2 patients an...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1996.tb02366.x
更新日期:1996-09-01 00:00:00
abstract::The disorders caused by mutations in genes encoding subunits and accessory proteins of cohesin complex are collectively termed as cohesinopathies. The best known cohesinopathy is Cornelia de Lange Syndrome (CdLS), which is a multisystem developmental disorder characterized by facial dysmorphism, limb malformations, gr...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.12194
更新日期:2014-05-01 00:00:00