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Viejo Boyano I, Hernández Velasco PJ, Gutiérrez Martínez E. Compassionate use of tolvaptan in acquired megacolon secondary to autosomal dominant polycystic kidney disease (ADPKD). Nefrologia 2024; 44:301-303. [PMID: 38553377 DOI: 10.1016/j.nefroe.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2024] Open
Affiliation(s)
- Iris Viejo Boyano
- Servicio de Nefrología, Hospital Universitari i Politècnic La Fe, Valencia, Spain.
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Gutiérrez E, Trujillo H, Aubert L, Sandino J, Morales E, Auñón P, Cavero T, Morales E, Praga M. Why should genetic testing be incorporated into routine clinical practice in nephrology? The utility of specialized clinics. An emerging need. Nefrologia 2023; 43:161-166. [PMID: 37394295 DOI: 10.1016/j.nefroe.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 02/15/2022] [Indexed: 07/04/2023] Open
Affiliation(s)
| | | | - Lucía Aubert
- Hospital Universitario 12 de Octubre, Madrid, Spain
| | | | | | - Pilar Auñón
- Hospital Universitario 12 de Octubre, Madrid, Spain
| | | | | | - Manuel Praga
- Hospital Universitario 12 de Octubre, Madrid, Spain
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Gutierrez E, Trujillo H, Aubert L, Sandino J, Hernández E, Auñón P, Cavero T, Morales E, Praga M. ¿Por qué se debe incorporar el estudio genético a la práctica clínica habitual en nefrología? La utilidad de consultas monográficas. Una necesidad emergente. Nefrologia 2022. [DOI: 10.1016/j.nefro.2022.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Dauwerse JG, de Vries BBA, Wouters CH, Bakker E, Rappold G, Mortier GR, Breuning MH, Peters DJM. A t(4;6)(q12;p23) translocation disrupts a membrane-associated O-acetyl transferase gene (MBOAT1) in a patient with a novel brachydactyly-syndactyly syndrome. Eur J Hum Genet 2007; 15:743-51. [PMID: 17440500 DOI: 10.1038/sj.ejhg.5201833] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Here, we report a patient with a novel brachydactyly-syndactyly syndrome and a de novo translocation 46,XY,t(4;6)(q12;p23). We mapped the breakpoint and identified genes in the breakpoint region. One of the genes on chromosome 6, the membrane-associated O-acetyl transferase gene 1 (MBOAT1), was disrupted by the breakpoint. This gene consists of 13 exons and encodes a protein of 495 amino acids. MBOAT1 is predicted to be a transmembrane protein and belongs to the superfamily of membrane-bound O-acyltransferases. These proteins transfer organic compounds, usually fatty acids, onto hydroxyl groups of membrane-embedded targets. Identification of the transferred acyl group and the target may reveal the signaling pathways altered in this novel brachydactyly-syndactyly syndrome.
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Affiliation(s)
- Johannes G Dauwerse
- Center for Human and Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
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Kielstein R. ADPKD and the clinical and ethical challenges of predictive medicine. EUROPEAN JOURNAL OF GENETICS IN SOCIETY : AN ETHICAL APPROACH TO GENETICS 2001; 1:2-6. [PMID: 11653051 DOI: 10.1179/hrge.1.1.q7w24u2013222263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Persu A, Devuyst O, Lannoy N, Materne R, Brosnahan G, Gabow PA, Pirson Y, Verellen-Dumoulin C. CF gene and cystic fibrosis transmembrane conductance regulator expression in autosomal dominant polycystic kidney disease. J Am Soc Nephrol 2000; 11:2285-2296. [PMID: 11095651 DOI: 10.1681/asn.v11122285] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Disease-modifying genes might participate in the significant intrafamilial variability of the renal phenotype in autosomal dominant polycystic kidney disease (ADPKD). Cystic fibrosis (CF) transmembrane conductance regulator (CFTR) is a chloride channel that promotes intracystic fluid secretion, and thus cyst progression, in ADPKD. The hypothesis that mutations of the CF gene, which encodes CFTR, might be associated with a milder renal phenotype in ADPKD was tested. A series of 117 unrelated ADPKD probands and 136 unaffected control subjects were screened for the 12 most common mutations and the frequency of the alleles of the intron 8 polymorphic TN: locus of CF. The prevalence of CF mutations was not significantly different in the ADPKD (1.7%, n = 2) and control (3.7%, n = 5) groups. The CF mutation was DeltaF508 in all cases, except for one control subject (1717-1G A). The frequencies of the 5T, 7T, and 9T intron 8 alleles were also similar in the ADPKD and control groups. Two additional patients with ADPKD and the DeltaF508 mutation were detected in the families of the two probands with CF mutations. Kidney volumes and renal function levels were similar for these four patients with ADPKD and DeltaF508 CFTR (heterozygous for three and homozygous for one) and for control patients with ADPKD collected in the University of Colorado Health Sciences Center database. The absence of a renal protective effect of the homozygous DeltaF508 mutation might be related to the lack of a renal phenotype in CF and the variable, tissue-specific expression of DeltaF508 CFTR. Immunohistochemical analysis of a kidney from the patient with ADPKD who was homozygous for the DeltaF508 mutation substantiated that hypothesis, because CFTR expression was detected in 75% of cysts (compared with <50% in control ADPKD kidneys) and at least partly in the apical membrane area of cyst-lining cells. These data do not exclude a potential protective role of some CFTR mutations in ADPKD but suggest that it might be related to the nature of the mutation and renal expression of the mutated CFTR.
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Affiliation(s)
- Alexandre Persu
- Division of Nephrology, Université Catholique de Louvain, Medical School, Brussels, Belgium
| | - Olivier Devuyst
- Division of Nephrology, Université Catholique de Louvain, Medical School, Brussels, Belgium
| | - Nathalie Lannoy
- Center for Human Genetics and Medical Genetics Unit, Université Catholique de Louvain, Medical School, Brussels, Belgium
| | - Roland Materne
- Department of Radiology, Université Catholique de Louvain, Medical School, Brussels, Belgium
| | - Godela Brosnahan
- Department of Medicine, Division of Renal Diseases, University of Colorado School of Medicine, Denver, Colorado
| | - Patricia A Gabow
- Department of Medicine, Division of Renal Diseases, University of Colorado School of Medicine, Denver, Colorado
| | - Yves Pirson
- Division of Nephrology, Université Catholique de Louvain, Medical School, Brussels, Belgium
| | - Christine Verellen-Dumoulin
- Center for Human Genetics and Medical Genetics Unit, Université Catholique de Louvain, Medical School, Brussels, Belgium
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7
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Papadopoulou D, Tsakiris D, Papadimitriou M. The use of ultrasonography and linkage studies for early diagnosis of autosomal dominant polycystic kidney disease (ADPKD). Ren Fail 1999; 21:67-84. [PMID: 10048119 DOI: 10.3109/08860229909066971] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To define possibly affected members of 69 families and to identify the factors influencing the progression of autosomal dominant polycystic kidney disease (ADPKD), 276 subjects at risk of having inherited the mutant gene underwent ultrasonographic scanning (US), using an ultrasound real-time scanner. At a mean age of 26 +/- 12 years (range 4-71), 85/276 individuals (31%) presented ultrasound evidence of the disease (at least two cysts in one kidney and one cyst in the other) (US: positive), while only 19/85 (22%) had one or more manifestations of ADPKD prior to diagnosis. The prevalence of the disease in subjects at risk aged < 30 years was 53/154 (34%), while hepatic cysts were also detected in 7/85 ADPKD probands (8%) (five females) at a mean age of 40 +/- 6 years (range 30-45) and their frequency correlated with the number of pregnancies. History was proved to be important in suspecting the disease since symptoms were more common in US positive as compared to negative subjects (22% vs 6%, p < 0.001). On the other hand, physical examination and routine laboratory data at presentation revealed abnormal signs mainly in US positive individuals aged 30-39 years. Forty ADPKD families met the criterion for genetic study (at least two members affected) but in three of them (7.5%), no linkage to DNA-markers for the short arm of chromosome 16 was detected ("unlinked" or ADPKD2). DNA-analysis in the rest 37 "linked" (ADPKD1) families identified the gene-carrier state in 18/123 (15%) US negative subjects at risk, at a mean age of 13 +/- 7 years (range 3-25). There were significantly more US positive subjects aged > or = 30 years in ADPKD2 as compared to ADPKD1 families (83% vs 35%, p < 0.05) suggesting that the progression of the disease is slower in the former families. During a 5-year follow-up, 6/18 gene-carriers (33%) had already developed distinct renal cysts on US, at a mean age of 20 +/- 9 years (range 8-29). On the contrary, none of the ADPKD1 non-carriers and the US negative ADPKD2 subjects had shown any ultrasound findings of cystic renal disease at that period.
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Affiliation(s)
- D Papadopoulou
- Department of Nephrology, Hippokration General Hospital, Thessaloniki, Greece
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9
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Roelfsema JH, Spruit L, Saris JJ, Chang P, Pirson Y, van Ommen GJ, Peters DJ, Breuning MH. Mutation detection in the repeated part of the PKD1 gene. Am J Hum Genet 1997; 61:1044-52. [PMID: 9345095 PMCID: PMC1716049 DOI: 10.1086/301600] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The principle cause of one of the most prevalent genetic disorders, autosomal dominant polycystic kidney disease, involves mutations in the PKD1 gene. However, since its identification in 1994, only 27 mutations have been published. Detection of mutations has been complicated because the greater part of the gene lies within a genomic region that is reiterated several times at another locus on chromosome 16. Amplification of DNA fragments in the repeated part of the PKD1 gene will lead to coamplification of highly homologous fragments derived from this other locus. These additional fragments severely hamper point-mutation detection. None of the point mutations published to date are located in the repeated part of the PKD1 gene. However, we have reduced the problems posed by the strong homology, by using the protein-truncation test, and we have identified eight novel mutations, seven of which are located in the repeated part of the PKD1 gene.
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Affiliation(s)
- J H Roelfsema
- Department of Human Genetics, Sylvius Laboratory, Leiden University, Leiden, The Netherlands
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10
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Veldhuisen B, Saris JJ, de Haij S, Hayashi T, Reynolds DM, Mochizuki T, Elles R, Fossdal R, Bogdanova N, van Dijk MA, Coto E, Ravine D, Nørby S, Verellen-Dumoulin C, Breuning MH, Somlo S, Peters DJ. A spectrum of mutations in the second gene for autosomal dominant polycystic kidney disease (PKD2). Am J Hum Genet 1997; 61:547-55. [PMID: 9326320 PMCID: PMC1715954 DOI: 10.1086/515497] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Recently the second gene for autosomal dominant polycystic kidney disease (ADPKD), located on chromosome 4q21-q22, has been cloned and characterized. The gene encodes an integral membrane protein, polycystin-2, that shows amino acid similarity to the PKD1 gene product and to the family of voltage-activated calcium (and sodium) channels. We have systematically screened the gene for mutations by single-strand conformation-polymorphism analysis in 35 families with the second type of ADPKD and have identified 20 mutations. So far, most mutations found seem to be unique and occur throughout the gene, without any evidence of clustering. In addition to small deletions, insertions, and substitutions leading to premature translation stops, one amino acid substitution and five possible splice-site mutations have been found. These findings suggest that the first step toward cyst formation in PKD2 patients is the loss of one functional copy of polycystin-2.
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Affiliation(s)
- B Veldhuisen
- Department of Human Genetics, Leiden University, The Netherlands
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11
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Jeffery S, Saggar-Malik AK, Morgan S, Eastwood JB, Patton M. Genetic analysis of 20 families with autosomal dominant adult polycystic kidney disease from South West Thames Region. Clin Genet 1995; 47:290-4. [PMID: 7554361 DOI: 10.1111/j.1399-0004.1995.tb03967.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Twenty families with autosomal dominant polycystic kidney disease from S. W. Thames Region were analysed using markers for chromosome 16p13.3, the site of the common mutation (PKD1). Six families gave a negative lod-score for 3'HVR, the most informative distal marker. This could be explained in four cases by recombination events. Of the two families where this was not an explanation, one, of Italian origin, was unequivocally unlinked for all markers, and the other was more likely to be non-PKD1 than linked to 16p13.3. The Italian family was ascertained through the Blood Pressure Unit, and the other via the Genetic Clinic. No members of either family had ever attended a renal clinic. The remaining 18 families either came via renal clinics, or had at least one member attending such a centre.
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Affiliation(s)
- S Jeffery
- Medical Genetics Unit, St George's Hospital Medical School, London, UK
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12
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Coto E, Sanz de Castro S, Aguado S, Alvarez J, Arias M, Menéndez MJ, López-Larrea C. DNA microsatellite analysis of families with autosomal dominant polycystic kidney disease types 1 and 2: evaluation of clinical heterogeneity between both forms of the disease. J Med Genet 1995; 32:442-5. [PMID: 7666395 PMCID: PMC1050483 DOI: 10.1136/jmg.32.6.442] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We studied 17 large families affected by adult dominant polycystic kidney disease (ADPKD). Ultrasonographic analysis was performed on all the family members. DNA microsatellite markers closely linked to PKD1 on 16p13.3 were analysed, and linkage of the disease to this locus was determined. Families showing a negative linkage value were evaluated for linkage to the PKD2 locus on 4q. Five of the 17 families showed negative linkage for the 16p13.3 markers. In these families significant linkage to 4q was obtained. Renal cysts developed at an earlier age in PKD1 mutation carriers, and end stage renal failure occurred at an older age in people affected with PKD2. Analysis of large families with ADPKD in a Spanish population indicates that this is a genetically heterogeneous disorder, but mutations at only two loci are responsible for the development of the disease in most if not all the families. Clinicopathological differences between both forms of the disease occur, with subjects with ADPKD2 having a better prognosis than those with mutations at PKD1.
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Affiliation(s)
- E Coto
- Laboratorio de Genética Molecular, Hospital Central de Asturias, Oviedo, Spain
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Pound SE, Thomas S, Snarey A, Macnicol AM, Watson ML, Pignatelli PM, Frischauf AM, Harris PC, Wright AF. Haplotype analysis in autosomal dominant polycystic kidney disease. J Med Genet 1995; 32:208-12. [PMID: 7783171 PMCID: PMC1050319 DOI: 10.1136/jmg.32.3.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Haplotype analysis was performed in 35 autosomal dominant polycystic kidney disease (ADPKD) families typed with 13 markers close to the PKD1 locus. The identification of recombinants close to the PKD1 gene on chromosome 16p indicates that PKD1 lies between CMM65 distally and 26-6 proximally. In addition, three unlinked (PKD2) families and two families with potential new mutation were identified.
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Affiliation(s)
- S E Pound
- MRC Human Genetics Unit, Western General Hospital, Edinburgh, UK
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14
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Taschner PE, de Vos N, Thompson AD, Callen DF, Doggett N, Mole SE, Dooley TP, Barth PG, Breuning MH. Chromosome 16 microdeletion in a patient with juvenile neuronal ceroid lipofuscinosis (Batten disease). Am J Hum Genet 1995; 56:663-8. [PMID: 7887420 PMCID: PMC1801154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The gene that is involved in juvenile neuronal ceroid lipofuscinosis (JNCL), or Batten disease--CLN3--has been localized to 16p12, and the mutation shows a strong association with alleles of microsatellite markers D16S298, D16S299, and D16S288. Recently, haplotype analysis of a Batten patient from a consanguineous relationship indicated homozygosity for a D16S298 null allele. PCR analysis with different primers on DNA from the patient and his family suggests the presence of a cytogenetically undetectable deletion, which was confirmed by Southern blot analysis. The microdeletion is embedded in a region containing chromosome 16-specific repeated sequences. However, putative candidates for CLN3, members of the highly homologous sulfotransferase gene family, which are also present in this region in several copies, were not deleted in the patient. If the microdeletion in this patient is responsible for Batten disease, then we conclude that the sulfotransferase genes are probably not involved in JNCL. By use of markers and probes flanking D16S298, the maximum size of the microdeletion was determined to be approximately 29 kb. The microdeletion may affect the CLN3 gene, which is expected to be in close proximity to D16S298.
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Affiliation(s)
- P E Taschner
- Department of Human Genetics, Leiden University, The Netherlands
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Daoust MC, Reynolds DM, Bichet DG, Somlo S. Evidence for a third genetic locus for autosomal dominant polycystic kidney disease. Genomics 1995; 25:733-6. [PMID: 7759112 DOI: 10.1016/0888-7543(95)80020-m] [Citation(s) in RCA: 189] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is a genetically heterogeneous disease with loci on chromosomes 16p and 4q. It has a moderately high spontaneous mutation rate, although the relative frequency of such mutations at each gene locus is unknown. In studying genetic heterogeneity in the French-Canadian population, we identified a family in which a classical clinical presentation of ADPKD resulted from a mutation at a locus genetically distinct from either of the previously described loci for this disease. This suggests the existence of a third genetic locus for ADPKD.
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Affiliation(s)
- M C Daoust
- Department of Biochemistry, Hôpital du Sacré-Coeur de Montréal, Université de Montréal, Québec, Canada
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San Millán JL, Viribay M, Peral B, Martínez I, Weissenbach J, Moreno F. Refining the localization of the PKD2 locus on chromosome 4q by linkage analysis in Spanish families with autosomal dominant polycystic kidney disease type 2. Am J Hum Genet 1995; 56:248-53. [PMID: 7825585 PMCID: PMC1801339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is a genetically heterogeneous disorder. At least two distinct forms of ADPKD are now well defined. In approximately 86% of affected European families, a gene defect localized to 16p13.3 was responsible for ADPKD, while a second locus has been recently localized to 4q13-q23 as candidate for the disease in the remaining families. We present confirmation of linkage to microsatellite markers on chromosome 4q in eight Spanish families with ADPKD, in which the disease was not linked to 16p13.3. By linkage analysis with marker D4S423, a maximum lod score of 9.03 at a recombination fraction of .00 was obtained. Multipoint linkage analysis, as well as a study of recombinant haplotypes, placed the PKD2 locus between D4S1542 and D4S1563, thereby defining a genetic interval of approximately 1 cM. The refined map will serve as a genetic framework for additional genetic and physical mapping of the region and will improve the accuracy of presymptomatic diagnosis of PKD2.
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Affiliation(s)
- J L San Millán
- Unidad de Genética Molecular, Hospital Ramón y Cajal, Madrid, Spain
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17
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Peral B, Ward CJ, San Millán JL, Thomas S, Stallings RL, Moreno F, Harris PC. Evidence of linkage disequilibrium in the Spanish polycystic kidney disease I population. Am J Hum Genet 1994; 54:899-908. [PMID: 7909986 PMCID: PMC1918265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Forty-one Spanish families with polycystic kidney disease 1 (PKD1) were studied for evidence of linkage disequilibrium between the disease locus and six closely linked markers. Four of these loci--three highly polymorphic microsatellites (SM6, CW3, and CW2) and an RFLP marker (BLu24)--are described for the first time in this report. Overall the results reveal many different haplotypes on the disease-carrying chromosome, suggesting a variety of independent PKD1 mutations. However, linkage disequilibrium was found between BLu24 and PKD1, and this was corroborated by haplotype analysis including the microsatellite polymorphisms. From this analysis a group of closely related haplotypes, consisting of four markers, was found on 40% of PKD1 chromosomes, although markers flanking this homogeneous region showed greater variability. This study has highlighted an interesting subpopulation of Spanish PKD1 chromosomes, many of which have a common origin, that may be useful for localizing the PKD1 locus more precisely.
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Affiliation(s)
- B Peral
- MRC Molecular Haematology Unit, Institute of Molecular Medicine, Headington, Oxford, United Kingdom
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Chauveau D, Pirson Y, Verellen-Dumoulin C, Macnicol A, Gonzalo A, Grünfeld JP. Intracranial aneurysms in autosomal dominant polycystic kidney disease. Kidney Int 1994; 45:1140-6. [PMID: 8007584 DOI: 10.1038/ki.1994.151] [Citation(s) in RCA: 85] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Rupture of intracranial aneurysm (ICA) is a rare but severe manifestation of autosomal dominant polycystic kidney disease (ADPKD). In order to assess its natural history, to determine the prevalence of familial aggregation and to document linkage to PKD1 locus, we conducted a retrospective study on 77 ADPKD patients from 64 families presenting with ruptured (N = 71) or unruptured (N = 6) aneurysm. Information was collected on kidney disease, intracranial aneurysm and family history. Linkage to PKD1 locus was examined by five probes to obtain informative flanking markers. Within one year prior to rupture, blood pressure was normal in 29% of the patients. At the time of rupture, mean age was 39.5 years (range 15 to 69), renal function was normal in half of the patients and 11% were on renal replacement therapy. The ruptured aneurysm was usually located on the middle cerebral artery. Additional intact aneurysms (1 to 6) were detected in 31% of the patients. Surgical or endovascular treatment was performed in 54 (76%) patients whereas 17 (24%) had medical management only. Rupture of ICA was fatal in seven (10%) patients. On long-term follow-up 27 (38%) were left with severe disablement. Five patients bled from another aneurysm 2 days to 14 years after initial rupture. Only two of six patients with unruptured aneurysm alone were treated on a prophylactic basis. No clinical marker associated with aneurysm was found. A family history of aneurysm rupture was demonstrated in 10 (18%) kindreds. Linkage to the PKD1 locus was established in two of three tested families.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- D Chauveau
- Department of Nephrology, Hôpital Necker, Paris, France
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Turco AE, Peissel B, Rossetti S, Selicorni A, Manoukian S, Brusasco A, Tadini G, Galimberti A, Tassis B, Turolla L. Prenatal testing in a fetus at risk for autosomal dominant polycystic kidney disease and autosomal recessive junctional epidermolysis bullosa with pyloric atresia. AMERICAN JOURNAL OF MEDICAL GENETICS 1993; 47:1225-30. [PMID: 8291561 DOI: 10.1002/ajmg.1320470820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Amniocentesis and fetal skin biopsies were performed at 18 weeks of gestation in a fetus at risk for autosomal dominant polycystic kidney disease (ADPKD) and autosomal recessive junctional epidermolysis bullosa (EBJ) with pyloric atresia. A previous son of the couple under investigation had died at 3 months of EBJ. The mother of the propositus has ADPKD. Genetic linkage studies were carried out in 11 relatives (4 with ADPKD), and on fetal DNA obtained from cultured amniocytes, using 8 flanking DNA markers tightly linked to the PKD1 locus on chromosome 16p, and a DNA marker linked to another putative ADPKD locus on chromosome 2p. The linkage results indicated that the fetus had not inherited the ADPKD chromosome from the affected mother, with a diagnostic accuracy of > 99%. Ultrastructural and immunohistochemical analyses of multiple fetal skin biopsies showed no EBJ-associated abnormalities. Thus, combining recent morphological and molecular diagnostic methods, we could show that the fetus was free from both diseases. After 40 weeks of gestation, a normal male infant was delivered.
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Affiliation(s)
- A E Turco
- Institute of Biological Sciences and Genetics, University of Verona School of Medicine, Italy
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Peral B, San Millán JL, Hernández C, Valero A, Lathrop GM, Beckmann JS, Moreno F. Estimating locus heterogeneity in autosomal dominant polycystic kidney disease (ADPKD) in the Spanish population. J Med Genet 1993; 30:910-3. [PMID: 7905535 PMCID: PMC1016597 DOI: 10.1136/jmg.30.11.910] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Although most mutations causing ADPKD in European populations have been mapped to the PKD1 locus on chromosome 16, some of them appear to be unlinked to this locus. To evaluate the incidence of unlinked mutations in Spain we have typed 31 Spanish families from different geographical sites for six closely linked DNA polymorphic marker loci flanking PKD1 detected by probes D16S85, D16S21, D16S259, D16S125, D16S246, and D16S80. Multilocus linkage analysis indicated that in 26 families the disease resulted from PKD1 mutations, whereas in three families it resulted from mutations in a locus other than PKD1. The two other families were not informative. Using the HOMOG test, the incidence of the PKD1 linked mutations in Spain is 85%. Multipoint linkage analysis in the 26 PKD1 families showed that the disease locus lies in the interval between D16S259(pGGG1) and D16S125(26.6).
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Affiliation(s)
- B Peral
- Unidad de Genética Molecular, Hospital Ramón y Cajal, Madrid, Spain
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21
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Roscoe JM, Brissenden JE, Williams EA, Chery AL, Silverman M. Autosomal dominant polycystic kidney disease in Toronto. Kidney Int 1993; 44:1101-8. [PMID: 8264142 DOI: 10.1038/ki.1993.355] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
This study describes the Toronto, Ontario experience with autosomal dominant polycystic kidney disease (ADPKD). Patients were divided into three groups: Group 1, 19 families studied with genetic markers; Group 2, 80 pre-dialysis ADPKD patients followed by Toronto nephrologists in whom the incidence of non-renal complications and the mean age of onset of symptomatology is documented; Group 3, 4,449 individuals who entered end-stage renal failure (ESRF) in the Toronto region between the years 1981 and 1992, 320 with ADPKD and 4129 with other diseases. In this third group age of onset of ESRF, frequency, age and cause of death is compared between ADPKD and non-ADPKD. ADPKD caused by a gene different from that linked to chromosome 16 short-arm probes occurred at a frequency of between 8 and 17%. Incidence of hepatic cysts in ADPKD was similar to that of previous series, other organ involvement was underdiagnosed without deliberate screening, and incidence of symptomatic intracranial aneurysm was 1.25%. A 5% excess of patients with ADPKD died of cerebro-vascular accident. Years of survival after ESRF measured by life table analysis was significantly greater for ADPKD patients than for non-ADPKD patients. A high frequency of death due to infection still exists in ADPKD despite the reduction of invasive procedures in diagnosis and treatment, and despite the presumably improved recent methods of managing infection. The average age of onset of ESRF has been delayed by over six years, and average age of death of ADPKD patients at 63.9 years-old by 12.4 years since 1960.
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Affiliation(s)
- J M Roscoe
- Division of Nephrology, Wellesley Hospital, Ontario, Canada
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22
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Jeffery S, Saggar-Malik AK, Morgan S, MacGregor GA. A family with autosomal dominant polycystic kidney disease not linked to chromosome 16p13.3. Clin Genet 1993; 44:173-6. [PMID: 8261645 DOI: 10.1111/j.1399-0004.1993.tb03874.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A family of Sicilian origin with autosomal dominant polycystic kidney disease (APKD) has been shown to be unlinked to chromosome 16 markers. LOD scores for the polymorphic markers 3'HVR and SM7 flanking the PKD 1 locus, were -1.4 and -2.33 respectively, and theta max was 0.5 for each marker. The clinical phenotype of this family is consistent with that of the other non-linked families with APKD reported in the literature, all outside the United Kingdom, which have a milder progression than those linked to 16p13.3. Assuming that a clinic population represents the most severe forms of a disease and non PKD-1 is a less aggressive phenotype, the degree of genetic heterogeneity for APKD in the population may well be much greater than at present suggested.
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Affiliation(s)
- S Jeffery
- Department of Child Health, St. George's Hospital Medical School, London, UK
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23
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Aksentijevich I, Pras E, Gruberg L, Shen Y, Holman K, Helling S, Prosen L, Sutherland GR, Richards RI, Dean M. Familial Mediterranean fever (FMF) in Moroccan Jews: demonstration of a founder effect by extended haplotype analysis. Am J Hum Genet 1993; 53:644-51. [PMID: 8102507 PMCID: PMC1682431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Familial Mediterranean fever (FMF) is an autosomal recessive disease causing attacks of fever and serositis. The FMF gene (designated "MEF") is on 16p, with the gene order 16cen-D16S80-MEF-D16S94-D16S283-D16S291-++ +16pter. Here we report the association of FMF susceptibility with alleles as D16S94, D16S283, and D16S291 among 31 non-Ashkenazi Jewish families (14 Moroccan, 17 non-Moroccan). We observed highly significant associations at D16S283 and D16S291 among the Moroccan families. For the non-Moroccans, only the allelic association at D16S94 approached statistical significance. Haplotype analysis showed that 18/25 Moroccan FMF chromosomes, versus 0/21 noncarrier chromosomes, bore a specific haplotype for D16S94-D16S283-D16S291. Among non-Moroccans this haplotype was present in 6/26 FMF chromosomes versus 1/28 controls. Both groups of families are largely descended from Jews who fled the Spanish Inquisition. The strong haplotype association seen among the Moroccans is most likely a founder effect, given the recent origin and genetic isolation of the Moroccan Jewish community. The lower haplotype frequency among non-Moroccan carriers may reflect differences both in history and in population genetics.
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Affiliation(s)
- I Aksentijevich
- Arthritis and Rheumatism Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892
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24
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Aksentijevich I, Pras E, Gruberg L, Shen Y, Holman K, Helling S, Prosen L, Sutherland GR, Richards RI, Ramsburg M. Refined mapping of the gene causing familial Mediterranean fever, by linkage and homozygosity studies. Am J Hum Genet 1993; 53:451-61. [PMID: 8328461 PMCID: PMC1682355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Familial Mediterranean fever (FMF) is an autosomal recessive disease characterized by attacks of fever and serosal inflammation; the biochemical basis is unknown. We recently reported linkage of the gene causing FMF (designated "MEF") to two markers on chromosome 16p. To map MEF more precisely, we have now tested nine 16p markers. Two-point and multipoint linkage analysis, as well as a study of recombinant haplotypes, placed MEF between D16S94 and D16S80, a genetic interval of about 9 cM. We also examined rates of homozygosity for markers in this region, among offspring of consanguineous marriages. For eight of nine markers, the rate of homozygosity among 26 affected inbred individuals was higher than that among their 20 unaffected sibs. Localizing MEF more precisely on the basis of homozygosity rates alone would be difficult, for two reasons: First, the high FMF carrier frequency increases the chance that inbred offspring could have the disease without being homozygous by descent at MEF. Second, several of the markers in this region are relatively nonpolymorphic, with a high rate of homozygosity, regardless of their chromosomal location.
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Affiliation(s)
- I Aksentijevich
- Artchritis and Rheumatism Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892
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25
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Abstract
The recently published, detailed cytogenetic-based physical map of chromosome 16 has the highest resolution of any autosomal cytogenetic map thus far constructed. The genetic map has been integrated with the cytogenetic map to facilitate the regional localization of disease genes by linkage. Disease genes for tuberous sclerosis, familial Mediterranean fever, Rubinstein-Taybi syndrome and Morquio A syndrome have now been assigned to chromosome 16. The search for the adult polycystic kidney disease gene has recently been narrowed to the analysis of candidate loci on chromosome 16, and localization of the gene determining juvenile Batten disease has been further refined by disequilibrium mapping.
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Affiliation(s)
- J C Mulley
- Department of Cytogenetics and Molecular Genetics, Women's and Children's Hospital, North Adelaide, Australia
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26
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Turco AE, Padovani EM, Chiaffoni GP, Peissel B, Rossetti S, Marcolongo A, Gammaro L, Maschio G, Pignatti PF. Molecular genetic diagnosis of autosomal dominant polycystic kidney disease in a newborn with bilateral cystic kidneys detected prenatally and multiple skeletal malformations. J Med Genet 1993; 30:419-22. [PMID: 8320707 PMCID: PMC1016382 DOI: 10.1136/jmg.30.5.419] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We report a case of an unusual prenatal presentation of polycystic kidneys associated with multiple skeletal limb defects, including polydactyly, syndactyly, bilateral agenesis of the tibia, and club foot. The ultrasonographic picture was consistent with a diagnosis of polycystic kidney disease, either the adult onset autosomal dominant type (ADPKD) or the early onset autosomal recessive form (ARPKD). However, there was a positive family history for ADPKD. Linkage analysis was performed in 10 family members, of whom four were affected, using six flanking DNA markers tightly linked to the PKD1 locus on chromosome 16p, and one marker linked to the putative PKD2 locus on chromosome 2p. Lod score determinations indicated that the affected gene in the family is most likely PKD1. The patient inherited the disease linked haplotype from his affected mother.
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MESH Headings
- Adult
- Bone and Bones/abnormalities
- Bone and Bones/diagnostic imaging
- Chromosomes, Human, Pair 16
- Diagnosis, Differential
- Female
- Follow-Up Studies
- Foot Deformities, Congenital/diagnostic imaging
- Foot Deformities, Congenital/genetics
- Genetic Linkage
- Genetic Markers
- Genotype
- Hand Deformities, Congenital/diagnostic imaging
- Hand Deformities, Congenital/genetics
- Haplotypes
- Humans
- Infant, Newborn
- Lod Score
- Male
- Pedigree
- Polycystic Kidney, Autosomal Dominant/diagnosis
- Polycystic Kidney, Autosomal Dominant/diagnostic imaging
- Polycystic Kidney, Autosomal Dominant/genetics
- Polycystic Kidney, Autosomal Recessive/diagnosis
- Polycystic Kidney, Autosomal Recessive/diagnostic imaging
- Polycystic Kidney, Autosomal Recessive/genetics
- Pregnancy
- Radiography
- Ultrasonography, Prenatal
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Affiliation(s)
- A E Turco
- Institute of Biological Sciences and Genetics, University of Verona School of Medicine, University Hospital Polyclinic B, Roma, Italy
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27
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Breuning MH, Dauwerse HG, Fugazza G, Saris JJ, Spruit L, Wijnen H, Tommerup N, van der Hagen CB, Imaizumi K, Kuroki Y, van den Boogaard MJ, de Pater JM, Mariman EC, Hamel BC, Himmelbauer H, Frischauf AM, Stallings R, Beverstock GC, van Ommen GJ, Hennekam RC. Rubinstein-Taybi syndrome caused by submicroscopic deletions within 16p13.3. Am J Hum Genet 1993; 52:249-54. [PMID: 8430691 PMCID: PMC1682202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The Rubinstein-Taybi syndrome (RTS) is a well-defined complex of congenital malformations characterized by facial abnormalities, broad thumbs and big toes, and mental retardation. The breakpoint of two distinct reciprocal translocations occurring in patients with a clinical diagnosis of RTS was located to the same interval on chromosome 16, between the cosmids N2 and RT1, in band 16p13.3. By using two-color fluorescence in situ hybridization, the signal from RT1 was found to be missing from one chromosome 16 in 6 of 24 patients with RTS. The parents of five of these patients did not show a deletion of RT1, indicating a de novo rearrangement. RTS is caused by submicroscopic interstitial deletions within 16p13.3 in approximately 25% of the patients. The detection of microdeletions will allow the objective conformation of the clinical diagnosis in new patients and provides an excellent tool for the isolation of the gene causally related to the syndrome.
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Affiliation(s)
- M H Breuning
- Department of Human Genetics, Leiden University, Sylvius Laboratories, The Netherlands
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28
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Klingel R, Störkel S, Dippold W, Rumpelt HJ, Moll R, Köhler H, Meyer zum Büschenfelde KH. Autosomal dominant polycystic kidney disease--in vitro culture of cyst-lining epithelial cells. VIRCHOWS ARCHIV. B, CELL PATHOLOGY INCLUDING MOLECULAR PATHOLOGY 1992; 61:189-99. [PMID: 1685280 DOI: 10.1007/bf02890421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The major form of autosomal dominant polycystic kidney disease (ADPKD) in humans is linked to the PKD1 gene on chromosome 16p. The identity of the gene and the underlying pathogenetic mechanisms are not yet defined. Cyst-lining epithelial cells derived from a polycystic kidney were successfully grown in culture and designated MZ-PKD-1 cells. By linkage analysis, the related pedigree of the nephrectomized patient could be linked to the PKD1 gene on chromosome 16p. Thus, these cells exhibit the genotype of a mutated PKD1 gene and represent an in vitro culture model for ADPKD involving chromosome 16p. The antigenic phenotype was characterized immunohistologically by epithelial differentiation antigens and markers of individual nephron segments. An essentially identical antigenic pattern of proximal tubular cells was observed both in vitro and in fresh frozen tissue. Electron microscopy showed the formation of a microvillous-like coating. During growth phases in vitro successive changes in the cell shape were observed. MZ-PKD-1 cells exhibited a limited lifespan ending in replicative senescence. Northern blot analysis of kidney-growth-related genes, c-myc, TGF-alpha, TGF-beta 1, and EGF receptor revealed abundant expression of all of these genes in MZ-PKD-1 cells.
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Affiliation(s)
- R Klingel
- First Department of Internal Medicine, University of Mainz, Federal Republic of Germany
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29
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Ravine D, Walker RG, Gibson RN, Forrest SM, Richards RI, Friend K, Sheffield LJ, Kincaid-Smith P, Danks DM. Phenotype and genotype heterogeneity in autosomal dominant polycystic kidney disease. Lancet 1992; 340:1330-3. [PMID: 1360045 DOI: 10.1016/0140-6736(92)92503-8] [Citation(s) in RCA: 118] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
It is now clear that mutations of at least two genetic loci can lead to autosomal dominant polycystic kidney disease (ADPKD). We have compared the clinical features of ADPKD caused by mutations at the PKD1 locus (linked to the alpha-globin complex on chromosome 16) with those of disease not linked to the locus (non-PKD1). We identified 18 families (285 affected members) with mutations at PKD1 and 5 families (49 affected individuals) in which involvement of this locus could be dismissed. Non-PKD1 patients lived longer than PKD1 patients (median survival 71.5 vs 56.0 years), had a lower risk of progressing to renal failure (odds ratio 0.35, 95% CI 0.13-0.92), were less likely to have hypertension (odds ratio adjusted for age and family of origin 0.29, 0.11-0.80), were diagnosed at an older age (median 69.1 vs 44.8 years), and had fewer renal cysts at the time of diagnosis. Although most of the PKD1 families were ascertained through clinics treating patients with renal impairment, no non-PKD1 family was identified through this source. Non-PKD1 ADPKD has a much milder phenotype than that linked to PKD1. Partly as a result of this difference in severity, the reported prevalence of this genotype is probably an underestimate.
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Affiliation(s)
- D Ravine
- Murdoch Institute, Royal Children's Hospital, Melbourne, Australia
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30
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Eng CM, Durtschi BA, Zoghbi HY, Beaudet AL. Isolation, mapping, and characterization of two cDNA clones expressed in the cerebellum. Genomics 1992; 14:813-5. [PMID: 1294119 DOI: 10.1016/s0888-7543(05)80196-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In an effort to characterize genes expressed in the cerebellum, we have isolated two cDNA clones, H11B (D16S286) and 507 (D5S344), that hybridized to a cerebellar cDNA probe. Using a panel of human-rodent somatic cell hybrids, cDNA clone H11B was mapped to human chromosome 16, and clone 507 was mapped to human chromosome 5. TaqI RFLPs were identified with both clones and were used for linkage analysis in the CEPH families. D16S286 was tightly linked to several markers near chromosome 16p13, and D5S344 was tightly linked to several markers on chromosome 5q. Sequence tagged sites or expressed sequence tags were generated from the 3' untranslated regions of both cDNA clones.
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Affiliation(s)
- C M Eng
- Howard Hughes Medical Institute, Baylor College of Medicine, Houston, Texas 77030
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31
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Elles RG. Linkage disequilibrium between D16S94 and the locus for adult polycystic kidney disease (PKD1). J Med Genet 1992; 29:758. [PMID: 1433243 PMCID: PMC1016155 DOI: 10.1136/jmg.29.10.758-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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32
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Rogers JC, Begleiter ML, Harris DJ. Patent ductus arteriosus in four generations of a family. J Med Genet 1992; 29:758. [PMID: 1433244 PMCID: PMC1016154 DOI: 10.1136/jmg.29.10.758] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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33
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Pignatelli PM, Pound SE, Carothers AD, Macnicol AM, Allan PL, Watson ML, Wright AF. Multipoint mapping of adult onset polycystic kidney disease (PKD1) on chromosome 16. J Med Genet 1992; 29:638-41. [PMID: 1404294 PMCID: PMC1016095 DOI: 10.1136/jmg.29.9.638] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Analysis of genetic linkage data in 33 adult onset polycystic kidney (ADPKD) families was carried out using probes for the D16S85, D16S84, and D16S94 loci. The data set of 33 families shows no evidence of genetic heterogeneity since one unlinked family was previously excluded. Two point linkage analysis showed maximum likelihood values of the recombination fraction of 0.07 for ADPKD and D16S85 (lod score 18.78), 0.02 for ADPKD and D16S84 (lod score 7.55), and 0.00 for ADPKD and D16S94 (lod score 6.73). Multipoint analysis showed a maximum likelihood order of tel-D16S85-0.06-D16S84-0.02-(PKD1, D16S94)-cen with a multipoint lod score of 32.16. Analysis of rare recombinants lying close to PKD1 gave results consistent with this order.
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Affiliation(s)
- P M Pignatelli
- MRC Human Genetics Unit, Western General Hospital, Edinburgh
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34
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Ceccherini I, Matera I, Sbrana M, Di Donato A, Yin L, Romeo G. Radiation hybrids for mapping and cloning DNA sequences of distal 16p. SOMATIC CELL AND MOLECULAR GENETICS 1992; 18:319-24. [PMID: 1440054 DOI: 10.1007/bf01235755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Three hundred fifteen radiation hybrids (RH) were isolated using a monochromosomal cell hybrid containing chromosome 16 only. A panel of 18 RH, which showed breakpoints among four markers (3.15, 26.6, 3'HVR, and 5'HVR) mapping in the distal portion of 16p, were selected and characterized for the retention of nine additional DNA sequences already localized in this region, and for one centromeric sequence. One or more breakpoints were identified in nine of the 12 intervals defined by the 13 single-copy sequences used. This panel of RH represents a tool for the construction of a detailed physical map of the distal part of 16p and for cloning sequences located in the proximity of disease genes. Three inter-Alu DNA sequences, amplified from one of these RH containing the autosomal dominant polycystic kidney disease (PKD1) gene, were cloned and mapped in the panel. Sequencing of the ends of one of three clones showed a (CAAA)n repeat, which revealed a two-allele polymorphism.
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Affiliation(s)
- I Ceccherini
- Laboratorio di Genetica Molecolare, Istituto G. Gaslini, Genova, Italy
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35
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Turco A, Peissel B, Quaia P, Morandi R, Bovicelli L, Pignatti PF. Prenatal diagnosis of autosomal dominant polycystic kidney disease using flanking DNA markers and the polymerase chain reaction. Prenat Diagn 1992; 12:513-24. [PMID: 1355292 DOI: 10.1002/pd.1970120606] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A prenatal diagnosis was carried out on a 9-week-old fetus at risk for autosomal dominant polycystic kidney disease (ADPKD). Ten members of the family were previously typed using five DNA markers linked to the PKD1 locus on chromosome 16, and one marker linked to the putative PKD2 locus on chromosome 2. The polymerase chain reaction (PCR) was used to amplify the D16S125 locus. Pairwise and multipoint lod scores indicated that the family was most likely segregating a PKD1 mutation. The fetus inherited the disease haplotype from the affected parent. Diagnostic accuracy was greater than 99 per cent, taking into account the possibility of genetic heterogeneity.
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Affiliation(s)
- A Turco
- Institute of Biological Sciences and Genetics, University of Verona, School of Medicine, University Hospital Polyclinic B. Roma, Italy
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36
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Himmelbauer H, Pohlschmidt M, Snarey A, Germino GG, Weinstat-Saslow D, Somlo S, Reeders ST, Frischauf AM. Human-mouse homologies in the region of the polycystic kidney disease gene (PKD1). Genomics 1992; 13:35-8. [PMID: 1349580 DOI: 10.1016/0888-7543(92)90198-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Autosomal dominant polycystic kidney disease (PKD1) is linked to the alpha-globin locus near the telomere of chromosome 16p. We established the existence of a conserved linkage group in mouse by mapping conserved sequences and cDNAs from the region surrounding the PKD1 gene in the mouse genome. Results obtained with the BXD recombinant strain system and somatic cell hybrids show the homologous region to be located on mouse chromosome 17 near the globin pseudogene Hba-ps4, an unprocessed alpha-like globin gene. The markers we mapped are widely distributed over the region known to contain the PKD1 gene, and it is therefore likely that the mouse homologue of PKD1 is also located on mouse chromosome 17.
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Affiliation(s)
- H Himmelbauer
- Imperial Cancer Research Fund, Department of Molecular Analysis of Mammalian Mutation, London, United Kingdom
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37
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Germino GG, Weinstat-Saslow D, Himmelbauer H, Gillespie GA, Somlo S, Wirth B, Barton N, Harris KL, Frischauf AM, Reeders ST. The gene for autosomal dominant polycystic kidney disease lies in a 750-kb CpG-rich region. Genomics 1992; 13:144-51. [PMID: 1577479 DOI: 10.1016/0888-7543(92)90214-d] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PKD1, the locus most commonly affected by mutations that produce autosomal dominant polycystic kidney disease (ADPKD), has previously been localized to chromosome 16p13.3. Since no cytogenetic abnormalities have been found in association with ADPKD, flanking genetic markers have been required to define an interval--the PKD1 region--that contains the PKD1 gene. In this report we demonstrate, through the construction of a long-range restriction map that links the flanking genetic markers GGG1 (D16S84) and 26.6PROX (D16S125), that the PKD1 gene lies within an extremely CpG-rich 750-kb segment of chromosome 16p13.3. Approximately 90% of this region has been cloned in three extensive cosmid/bacteriophage contigs. The cloned DNA is a valuable resource for identifying new closer flanking genetic markers and for isolating candidate genes from the region.
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Affiliation(s)
- G G Germino
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut 06510
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38
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Somlo S, Wirth B, Germino GG, Weinstat-Saslow D, Gillespie GA, Himmelbauer H, Steevens L, Coucke P, Willems P, Bachner L. Fine genetic localization of the gene for autosomal dominant polycystic kidney disease (PKD1) with respect to physically mapped markers. Genomics 1992; 13:152-8. [PMID: 1349570 DOI: 10.1016/0888-7543(92)90215-e] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
PKD1, the gene for the chromosome 16-linked form of autosomal dominant polycystic kidney disease, has previously been genetically mapped to an interval bounded by the polymorphic loci Fr3-42/EKMDA2 distally and O327hb/O90a proximally. More recently, 26.6PROX was identified as the closest proximal flanking locus. We set out to refine the localization of PKD1 by identifying a series of single recombinant events between the flanking markers Fr3-42/EKMDA2 and O327hb/O90a and analyzing them with a new set of polymorphic loci that have been physically mapped within the PKD1 interval. We identified 11 such crossovers in eight families; 6 of these fell into the interval between GGG1 and 26.6PROX, a distance of less than 750 kb. Three of these crossovers placed PKD1 proximal to GGG1 and two crossovers placed PKD1 distal to 26.6PROX. Both of the latter also placed PKD1 telomeric to a locus 92.6SH1.0, which lies 200-250 kb distal to 26.6PROX. The sixth recombinant, however, placed the disease mutation proximal to the locus 92.6SH1.0. Several possible explanations for these observations are discussed. An intensive study to locate deletions, insertions, and other chromosomal rearrangements associated with PKD1 mutations failed to detect any such abnormalities. Thus we have defined, in genetic and physical terms, the segment of 16p13.3 where PKD1 resides and conclude that a gene-by-gene analysis of the region will be necessary to identify the mutation(s).
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Affiliation(s)
- S Somlo
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut 06510
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39
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Coto E, Aguado S, Alvarez J, Menéndez Díaz MJ, López-Larrea C. Genetic and clinical studies in autosomal dominant polycystic kidney disease type 1 (ADPKD1). J Med Genet 1992; 29:243-6. [PMID: 1583643 PMCID: PMC1015922 DOI: 10.1136/jmg.29.4.243] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Thirteen Spanish families with autosomal dominant polycystic kidney disease were studied. In one family the disease did not segregate with polymorphic markers around the PKD1 locus. All subjects over the age of 30 years carrying a mutation at the PKD1 locus showed renal ultrasonographic cysts, but 40% of carriers of the PKD1 mutation younger than 30 years did not have renal cysts. Hypertension was found to be more frequent in those with renal cysts. Recombinants between 16p polymorphic loci and the PKD1 locus are described.
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Affiliation(s)
- E Coto
- Servicio de Immunología, Hospital Covadonga, Oviedo, Spain
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40
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Pound SE, Carothers AD, Pignatelli PM, Macnicol AM, Watson ML, Wright AF. Evidence for linkage disequilibrium between D16S94 and the adult onset polycystic kidney disease (PKD1) gene. J Med Genet 1992; 29:247-8. [PMID: 1583644 PMCID: PMC1015923 DOI: 10.1136/jmg.29.4.247] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- S E Pound
- MRC Human Genetics Unit, Western General Hospital, Edinburgh
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41
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Ceccherini I, Romeo G, Lawrence S, Breuning MH, Harris PC, Himmelbauer H, Frischauf AM, Sutherland GR, Germino GG, Reeders ST. Construction of a map of chromosome 16 by using radiation hybrids. Proc Natl Acad Sci U S A 1992; 89:104-8. [PMID: 1729675 PMCID: PMC48184 DOI: 10.1073/pnas.89.1.104] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
A human-hamster cell hybrid carrying a single copy of chromosome 16 as the only human genetic material was irradiated with a single dose of gamma-rays (7000 rads; 1 rad = 0.01 Gy) and then fused with a thymidine kinase-deficient hamster cell line (RJKM) to generate radiation hybrids retaining unselected fragments of this human chromosome. In two experiments, 223 hybrids were isolated in hypoxanthine/aminopterine/thymidine (HAT) medium and screened with 38 DNA probes, corresponding to anonymous DNA or gene sequences localized on chromosome 16. The most likely order and location of the 38 DNA sequences were established by multiple pairwise analysis and scaled to estimate physical distance in megabases. The order and the distances thus obtained are mostly consistent with available data on genetic and physical mapping of these markers, illustrating the usefulness of radiation hybrids for mapping.
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Affiliation(s)
- I Ceccherini
- Laboratorio di Genetica Molecolare, Istituto G. Gaslini, Genova, Italy
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42
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Klingel R, Dippold W, Störkel S, Meyer zum Büschenfelde KH, Köhler H. Expression of differentiation antigens and growth-related genes in normal kidney, autosomal dominant polycystic kidney disease, and renal cell carcinoma. Am J Kidney Dis 1992; 19:22-30. [PMID: 1739078 DOI: 10.1016/s0272-6386(12)70198-1] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cellular differentiation and mRNA levels of genes involved in kidney growth were investigated in normal kidney cells, cyst-lining epithelial cells of polycystic kidney disease, and renal carcinoma cells (RCC). All cells comparatively studied exhibited an antigenic phenotype of proximal tubular cells as shown by the expression of a panel of brush border membrane enzymes and kidney-associated cell surface antigens. The epithelial developmental antigen Exo-1 was expressed in 50% to 80% of cyst-lining epithelia in polycystic kidney tissue and in 20% to 30% of polycystic kidney cells cultured in vitro. Normal kidney cells and RCC were negative under identical culture conditions. The expression of antigen Exo-1 is associated with hyperproliferation in an epithelial tissue compartment composed of cells which have not yet reached their terminal differentiation state. Increased amounts of mRNA of the growth factor receptor system of epidermal growth factor (EGF) receptor and its ligand transforming growth factor (TGF)-alpha were associated with the malignant phenotype of RCC. Increased expression of EGF receptor and TGF-alpha, although less prominent, were also observed in polycystic kidney cells compared with normal kidney cells. In conclusion, the expression of Exo-1 in cyst-lining epithelial cells of autosomal dominant polycystic kidney disease (ADPKD) and the altered regulation of TGF-alpha and EGF receptor in these cells contribute to the hypothesis that hyperproliferation is an underlying pathogenic mechanism of ADPKD.
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Affiliation(s)
- R Klingel
- First Department of Internal Medicine, University of Mainz, Germany
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43
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Harris PC, Thomas S, Ratcliffe PJ, Breuning MH, Coto E, Lopez-Larrea C. Rapid genetic analysis of families with polycystic kidney disease 1 by means of a microsatellite marker. Lancet 1991; 338:1484-7. [PMID: 1683919 DOI: 10.1016/0140-6736(91)92300-q] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Presymptomatic diagnosis of polycystic kidney disease 1 (PKD1) is possible by genetic linkage analysis with markers from both sides of the disease locus. The existing proximal markers are not informative in many families, so such analysis is difficult and time-consuming. We sought more useful length polymorphisms on the proximal side of the locus among simple sequence repeats (microsatellites). We identified two microsatellite polymorphisms that lie closer to the PKD1 locus than any previously described highly variable marker. One, SM7, is especially informative; we have found fourteen alleles and the observed heterozygosity in caucasians is 62.7%. Genetic linkage analysis in PKD1 families suggests that both of the markers lie proximal to the disease gene, closer than existing flanking markers. These polymorphisms can be simply assayed by polymerase chain reaction amplification of the variable regions, which generates DNA fragments that can be separated on non-denaturing acrylamide gels and directly examined after gel staining. This rapid, inexpensive, and non-radioactive method of linkage analysis allows the complete study of DNA samples within 8 h.
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Affiliation(s)
- P C Harris
- Institute of Molecular Medicine, John Radcliffe Hospital, Oxford, UK
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44
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Wessels HW, Dauwerse HG, Breuning MH, Beverstock GC. Inversion 16 and translocation (16;16) in ANLL M4eo break in the same subregion of the short arm of chromosome 16. CANCER GENETICS AND CYTOGENETICS 1991; 57:225-8. [PMID: 1756502 DOI: 10.1016/0165-4608(91)90156-o] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- H W Wessels
- Department of Human Genetics, State University Leiden, The Netherlands
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45
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Turco A, Peissel B, Gammaro L, Maschio G, Pignatti PF. Linkage analysis for the diagnosis of autosomal dominant polycystic kidney disease, and for the determination of genetic heterogeneity in Italian families. Clin Genet 1991; 40:287-97. [PMID: 1684535 DOI: 10.1111/j.1399-0004.1991.tb03098.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Sixty-eight individuals from six Italian families in which autosomal dominant polycystic kidney disease (ADPKD) is segregating, were typed in DNA polymorphisms linked to the PKD1 locus on chromosome 16. A total of ten probes were used: 3' HVR, HMJ1, EKMDA, GGG1, 26-6, VK5B, 218EP6, 24.1, CRI090, and 41.1. Zmax was 4.502 at theta = 0.082 between ADPKD and 3'HVR, and 4.382, 1.947, and 1.576 between ADPKD and GGG1, 26.6, and 218EP6, respectively, at theta = 0.0. No clear evidence of genetic heterogeneity was found. Multipoint analyses were consistent with linkage to PKD1. Twenty-nine diagnoses and 16 exclusions made by ultrasonography were confirmed by genotype determinations; in two clinically uncertain cases, DNA analysis predicted one individual as being affected and the other unaffected.
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Affiliation(s)
- A Turco
- Institute of Biological Sciences, University of Verona School of Medicine, Strada Le Grazie, Italy
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46
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Himmelbauer H, Germino GG, Ceccherini I, Romeo G, Reeders ST, Frischauf AM. Saturating the region of the polycystic kidney disease gene with NotI linking clones. Am J Hum Genet 1991; 48:325-34. [PMID: 1990840 PMCID: PMC1683004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
A NotI-linking library was constructed from a radiation hybrid containing fragments of human chromosome 16. The clones were mapped on a panel of somatic cell hybrids, and 10 different NotI site-containing clones were localized close to and between genetic markers flanking the PKD1 locus. With pulsed-field gel analysis the clones were shown to be distributed over four adjacent ClaI fragments covering 1,200 kb.
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47
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48
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Breuning MH, Snijdewint FG, Dauwerse JG, Saris JJ, Bakker E, Pearson PL, vanOmmen GJ. Two step procedure for early diagnosis of polycystic kidney disease with polymorphic DNA markers on both sides of the gene. J Med Genet 1990; 27:614-7. [PMID: 1978861 PMCID: PMC1017239 DOI: 10.1136/jmg.27.10.614] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Polymorphic DNA markers can now be used for presymptomatic and prenatal diagnosis of the autosomal dominant form of polycystic kidney disease (PKD). A detailed map is known for the chromosomal region around the PKD1 gene on the short arm of chromosome 16. We present here a simple, two step procedure for diagnosis of PKD1 by family studies. Using this approach, at least 92% of random subjects are informative for polymorphic DNA markers bracketing the PKD1 gene. The recombination rate between these flanking markers is on average 10%. In non-recombinants (90% of family members), the accuracy of diagnosis using DNA markers is greater than 99%. We conclude that sufficient well defined DNA markers are now available for routine diagnosis of PKD1. We recommend, however, that prenatal diagnosis of PKD by chorionic villi sampling should be attempted only after the linkage phase of the DNA markers has been established by haplotyping the index family. Since autosomal dominant PKD has been found to be genetically heterogeneous, families should be of sufficient size to rule out the rare form of PKD not caused by a mutation on the short arm of chromosome 16.
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Affiliation(s)
- M H Breuning
- Department of Human Genetics, State University Leiden, The Netherlands
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