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Pala HG, Artunc-Ulkumen B, Uyar Y, Bal F, Baytur YB, Koyuncu FM. De novo reciprocal translocation t(5;11)(q22;p15) associated with hydrops fetalis (reciprocal translocation and hydrops fetalis). Fetal Pediatr Pathol 2015; 34:44-8. [PMID: 25289481 DOI: 10.3109/15513815.2014.962196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE This is a case of a prenatally diagnosed non-immune hydrops fetalis (NIHF) associated with translocation t(5;11)(q22;p15). An association between NIHF and this translocation has not been reported previously. CASE REPORT The patient was referred to the perinatology clinic with hydrops fetalis diagnosis at 23 weeks' gestation. We noted that the fetus had bilateral pleural effusion, ascites, widespread subcutaneous edema, membranous ventricular septal defect, hypoplastic fifth finger middle phalanx, clinodactyly, single umbilical artery. We performed cordocentesis. Chromosomal analysis on blood showed a balanced translocation between the long arm of chromosome 5 and the short arm of chromosome 11 with karyotype of 46,XX,t(5;11)(q22;p15). CONCLUSION We present prenatal diagnosis of a de novo translocation (5;11) in a hydropic fetus with ultrason abnormalities. In our case, karyotype analysis of the fetus, mother and father provided evidence of a de novo translocation, that might explain the NIHF.
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Affiliation(s)
- Halil Gursoy Pala
- Perinatology Division, Obstetrics and Gynecology Department, Celal Bayar University School of Medicine , Manisa , Turkey
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Eisbrenner K, Steffensen TS, Whiteman VE, Gilbert-Barness E. De novo translocation t(5;9)(q11.2;p22) associated with hydrops fetalis and cystic hygroma. Fetal Pediatr Pathol 2012; 31:39-42. [PMID: 22217146 DOI: 10.3109/15513815.2011.641891] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We report on a case of a prenatally diagnosed non-immune hydrops fetalis and cystic hygroma associated with the balanced translocation t(5;9)(q11.2;p22), an association that to our knowledge has not been reported previously. Both parents had normal karyotypes. The infant was born prematurely at 33 and 3/7 weeks gestation and expired 12 h after delivery.
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Affiliation(s)
- Kristen Eisbrenner
- Department of Anatomy, Cell Biology and Pathology, University of South Florida, Tampa, Florida 33606, USA
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Kim HG, Ahn JW, Kurth I, Ullmann R, Kim HT, Kulharya A, Ha KS, Itokawa Y, Meliciani I, Wenzel W, Lee D, Rosenberger G, Ozata M, Bick DP, Sherins RJ, Nagase T, Tekin M, Kim SH, Kim CH, Ropers HH, Gusella JF, Kalscheuer V, Choi CY, Layman LC. WDR11, a WD protein that interacts with transcription factor EMX1, is mutated in idiopathic hypogonadotropic hypogonadism and Kallmann syndrome. Am J Hum Genet 2010; 87:465-79. [PMID: 20887964 DOI: 10.1016/j.ajhg.2010.08.018] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 08/10/2010] [Accepted: 08/31/2010] [Indexed: 12/25/2022] Open
Abstract
By defining the chromosomal breakpoint of a balanced t(10;12) translocation from a subject with Kallmann syndrome and scanning genes in its vicinity in unrelated hypogonadal subjects, we have identified WDR11 as a gene involved in human puberty. We found six patients with a total of five different heterozygous WDR11 missense mutations, including three alterations (A435T, R448Q, and H690Q) in WD domains important for β propeller formation and protein-protein interaction. In addition, we discovered that WDR11 interacts with EMX1, a homeodomain transcription factor involved in the development of olfactory neurons, and that missense alterations reduce or abolish this interaction. Our findings suggest that impaired pubertal development in these patients results from a deficiency of productive WDR11 protein interaction.
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Rochat MK, Riegel M, Schinzel AA. Long-term follow-up of a 26-year-old male with duplication of 16p: Clinical report and review. Am J Med Genet A 2007; 143:399-408. [PMID: 17230490 DOI: 10.1002/ajmg.a.31605] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We report on a 26-year-old male with profound psychomotor retardation and a pattern of dysmorphic features and malformations characteristic for duplication of the short arm of chromosome 16. He has an elongated face, sparse hair, upslanting palpebral fissures, anteverted nostrils, hypoplastic thumbs on both hands, and dislocation of several joints. His chromosome aberration was diagnosed at birth and was due to an unbalanced segregation of a maternal translocation t(2;16)(q36;p11). At 26 years of age he is, to the best of our knowledge, the oldest patient with duplication of 16p reported to date. We present a long-term observation of growth, psychomotor development, dysmorphic features and evolution of his skeletal and joint defects as well as a review of the literature.
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Affiliation(s)
- Mascha K Rochat
- Institute of Medical Genetics, University of Zürich, Switzerland
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5
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Brooks BP, Meck JM, Haddad BR, Bendavid C, Blain D, Toretsky JA. Factor VII deficiency and developmental abnormalities in a patient with partial monosomy of 13q and trisomy of 16p: case report and review of the literature. BMC MEDICAL GENETICS 2006; 7:2. [PMID: 16412230 PMCID: PMC1379634 DOI: 10.1186/1471-2350-7-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2005] [Accepted: 01/13/2006] [Indexed: 12/02/2022]
Abstract
Background Unbalanced chromosomal translocations may present with a variety of clinical and laboratory findings and provide insight into the functions of genes on the involved chromosomal segments. Case Presentation A 9 year-old boy presented to our clinic with Factor VII deficiency, microcephaly, a seizure disorder, multiple midline abnormalities (agenesis of the corpus callosum, imperforate anus, bilateral optic nerve hypoplasia), developmental delay, hypopigmented macules, short 5th fingers, and sleep apnea due to enlarged tonsils. Cytogenetic and fluorescence in situ hybridization analyses revealed an unbalanced translocation involving the segment distal to 16p13 replacing the segment distal to 13q33 [46, XY, der(13)t(13;16)(q33;p13.3)]. Specific BAC-probes were used to confirm the extent of the 13q deletion. Conclusion This unique unbalanced chromosomal translocation may provide insights into genes important in midline development and underscores the previously-reported phenotype of Factor VII deficiency in 13q deletions.
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Affiliation(s)
- Brian P Brooks
- National Eye Institute, USA
- National Human Genome Research Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD
- National Eye Insitute/National Human Genome Research Institute, Building 10, Room 10N226; 10 Center Drive, Bethesda, MD 20892
| | - Jeanne M Meck
- Department of Obstetrics/Gynecology and Oncology, USA
- Lombardi Comprehensive Cancer Center
| | - Bassem R Haddad
- Department of Obstetrics/Gynecology and Oncology, USA
- Lombardi Comprehensive Cancer Center
| | - Claude Bendavid
- National Human Genome Research Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD
- Department of Obstetrics/Gynecology and Oncology, USA
- CNRS UMR 6061 Génétique et Développement, Université de Rennes 1, Groupe Génétique Humaine, IFR140 GFAS, Faculté de médecine, Rennes, France
| | | | - Jeffrey A Toretsky
- Lombardi Comprehensive Cancer Center
- Pediatric Hematology/Oncology, Georgetown University Hospital, Washington, D.C
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Kokalj-Vokac N, Medica I, Zagorac A, Zagradisnik B, Erjavec A, Gregoric A. A case of insertional translocation resulting in partial trisomy 16p. ANNALES DE GENETIQUE 2000; 43:131-5. [PMID: 11164194 DOI: 10.1016/s0003-3995(00)01021-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
This report concerns the case of a boy with partial trisomy 16p resulting from the insertional translocation of the short arm of chromosome 16 into the long arm of chromosome 1 in his father. He was referred for genetic testing because of mental retardation, short stature, microcephaly, seizures and multiple dysmorphic features. Chromosome analysis performed in the child demonstrated the presence of additional material in the long arm of chromosome 1. Paternal high resolution chromosome analysis and fluorescence in situ hybridisation revealed the following karyotype: 46,XY,ins(1;16)(q42;p13.1p13.3), while the karyotype of the boy is 46,XY,der(1),ins(1;16)(q42;p13.1p13.3)pat. This is the first reported case of partial trisomy 16p due to paternal insertional translocation.
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Affiliation(s)
- N Kokalj-Vokac
- Laboratory for Medical Genetics, Gynecology and Perinatology Clinic, Maribor Teaching Hospital, Ljubljanska 5, 2000 Maribor, Slovenia.
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Chen CP, Chern SR, Lee CC, Town DD, Chen WL, Wang W. Bilateral renal agenesis and fetal ascites in association with partial trisomy 13 and partial trisomy 16 due to a 3:1 segregation of maternal reciprocal translocation t(13;16)(q12.3; p13.2). Prenat Diagn 1999; 19:783-6. [PMID: 10451531 DOI: 10.1002/(sici)1097-0223(199908)19:8<783::aid-pd635>3.0.co;2-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A female fetus with bilateral renal agenesis and fetal ascites was found to have partial trisomy 13 (pter-q12.3) and partial trisomy 16 (p13.2-pter), 47,XX,+der(13)t(13;16)(q12.3; p13.2)mat. The chromosomal aberration was due to a 3:1 segregation with tertiary trisomy transmitted from a maternal reciprocal translocation 13;16. Prenatal ultrasound of a 29-year-old, gravida 2, para 0 woman at 22 gestational weeks showed fetal ascites, severe oligohydramnios and non-visualization of fetal urinary bladder and kidneys. The pregnancy was terminated. At delivery, the proband displayed dysmorphic features of hypertelorism, a prominent glabella, epicanthic fold, a stubby nose with a depressed nasal bridge, anteverted nares, thin lips, micrognathia, low-set ears, a short neck and a distended abdomen. Necropsy confirmed bilateral renal agenesis and ascites. A cytogenetic study performed on fibroblasts obtained from the proband's skin revealed an extra supernumerary chromosome. The mother was later found to have a reciprocal translocation. Fluorescence in situ hybridization for a submicroscopic deletion in chromosome 22q11 in the proband was negative. The parents had no urological anomalies. Our observation further extends the clinical spectrum associated with proximal trisomy 13q and distal trisomy 16p. We suggest prenatal cytogenetic analysis in fetuses with urological anomalies, including renal agenesis, to uncover underlying genetic disorders.
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Affiliation(s)
- C P Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, and National Yang-Ming University, 92, Section 2, Chung-Shan North Road, Taipei, Taiwan, R.O.C
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Nance MA, Boyadjiev S, Pratt VM, Taylor S, Hodes ME, Dlouhy SR. Adult-onset neurodegenerative disorder due to proteolipid protein gene mutation in the mother of a man with Pelizaeus-Merzbacher disease. Neurology 1996; 47:1333-5. [PMID: 8909455 DOI: 10.1212/wnl.47.5.1333] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
A 23-year-old man with Pelizaeus-Merzbacher disease had a novel mutation, C344A (Thr115Lys), in exon 3 of the proteolipid protein gene (PLP) His mother, heterozygous for the mutation, developed progressive personality change and a gait disorder in her mid-20s. Her MRI at age 53 showed a diffuse severe leukodystrophy. This report extends the phenotypic range of disease due to PLP gene mutations to include adult-onset dementia in females.
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Affiliation(s)
- M A Nance
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis 46202-5251, USA
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Webber SA, Hatchwell E, Barber JC, Daubeney PE, Crolla JA, Salmon AP, Keeton BR, Temple IK, Dennis NR. Importance of microdeletions of chromosomal region 22q11 as a cause of selected malformations of the ventricular outflow tracts and aortic arch: a three-year prospective study. J Pediatr 1996; 129:26-32. [PMID: 8757559 DOI: 10.1016/s0022-3476(96)70186-5] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVES To assess the incidence of microdeletions of chromosomal region 22q11 in a population of infants coming to a regional pediatric cardiac center with selected abnormalities of the ventricular outflow tracts and aortic arch and, further, to provide phenotypic/genetic correlations to determine whether patients with 22q11 deletions can be clinically recognized in infancy. BACKGROUND DiGeorge syndrome and velocardiofacial syndrome are frequently associated with malformations of the ventricular outflow tracts and aortic arch. Both are usually caused by microdeletions of chromosomal region 22q11. The overall importance of such deletions as a cause of these cardiac malformations remains to be established. STUDY DESIGN All infants with the candidate cardiac phenotypes during a 34-month period were studied. Dysmorphic features, type of cardiac defect, serum calcium concentration, and thymic status were recorded. Cytogenetic studies, including high-resolution karyotyping and fluorescence in situ hybridization using cosmids (cEO or cH748) from the DiGeorge critical region, were performed after clinical assessment. RESULTS Fifty infants (including 36 with tetralogy of Fallot with or without pulmonary atresia) were seen during the study period. Twenty-six infants (52%) were dysmorphic, including 19 who were considered to have a phenotypic appearance consistent with 22q11 deletion. Genetic analysis confirmed hemizygosity for 22q11 in 8 of these 19 cases. Results of fluorescence in situ hybridization studies were normal in 22 infants without dysmorphic features and in 5 infants with dysmorphic features not suggestive of a 22q11 deletion. CONCLUSIONS Microdeletions of chromosomal region 22q11 are an important cause of selected malformations of the ventricular outflow tracts and aortic arch and account for about 15% to 20% of cases. These deletions may be clinically recognized in early infancy and can be rapidly confirmed by fluorescence in situ hybridization.
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Affiliation(s)
- S A Webber
- Wessex Cardiothoracic Centre, Southampton General Hospital, United Kingdom
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Resta RG, Luthardt F, Kapur R. Follow-up of a familial translocation t(10;16) with an unusual segregation pattern. AMERICAN JOURNAL OF MEDICAL GENETICS 1996; 63:363-5. [PMID: 8725786 DOI: 10.1002/(sici)1096-8628(19960517)63:2<363::aid-ajmg7>3.0.co;2-u] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Bofinger et al. [Am J Med Genet 38:1-8, 1991] reported on a four-generation family with an unusual segregation pattern involving a translocation t(10;16)(q26.3;p13.1). All relatives either had a balanced or unbalanced translocation. We report on five additional relatives, none of whom have a normal karyotype. This unusual segregation pattern may be due to chance or be the result of meiotic drive.
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Affiliation(s)
- R G Resta
- Center for Perinatal Studies, Swedish Medical Center, Seattle, Washington 98114-0999, USA
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Preis W, Barbi G, Liptay S, Kennerknecht I, Schwemmle S, Pohlandt F. X/autosome translocation in three generations ascertained through an infant with trisomy 16p due to failure of spreading of X-inactivation. AMERICAN JOURNAL OF MEDICAL GENETICS 1996; 61:117-21. [PMID: 8669435 DOI: 10.1002/(sici)1096-8628(19960111)61:2<117::aid-ajmg2>3.0.co;2-u] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We report on a reciprocal translocation t(X;16)(q28;p12) detected in a newborn girl with clinical manifestations of partial trisomy 16p. A balanced translocation was found in the mother and in the maternal grandmother. Replication studies on lymphocytes and fibroblasts showed nonrandom X-inactivation in both the patient and her mother. In the mother, the derivative X (der(X)) was active, whereas the normal X was late replicating. In contrast, in the patient the der(X) was late replicating, and there was no spreading of X-inactivation onto the autosomal segment, thus giving an explanation for the full clinical picture of partial trisomy 16p.
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Affiliation(s)
- W Preis
- Universitätskinderklinik, Ulm, Germany
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Tommerup N, van der Hagen CB, Heiberg A. Tentative assignment of a locus for Rubinstein-Taybi syndrome to 16p13.3 by a de novo reciprocal translocation, t(7;16)(q34;p13.3). AMERICAN JOURNAL OF MEDICAL GENETICS 1992; 44:237-41. [PMID: 1456298 DOI: 10.1002/ajmg.1320440223] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
During a systematic chromosomal survey of 7 unrelated patients with Rubinstein-Taybi syndrome, an apparently balanced de novo reciprocal translocation, t(7;16)(q34;p13.3), was detected in an affected boy. The involvement of the region 16p13.3 coincides with the position of one of the breakpoints in another de novo reciprocal translocation associated with Rubinstein-Taybi syndrome, suggesting that a locus for this syndrome maps to 16p13.3.
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Affiliation(s)
- N Tommerup
- Department of Medical Genetics, Ullevaal Hospital, Oslo, Norway
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O'Connor TA, Higgins RR. Trisomy 16p in a liveborn infant and review of trisomy 16p. AMERICAN JOURNAL OF MEDICAL GENETICS 1992; 42:316-9. [PMID: 1536169 DOI: 10.1002/ajmg.1320420311] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We report on an infant boy with duplication of part of 16p and partial deficiency of 9p: 46,XY, -9, + der(9)t(9;16)(p24;p13.1)mat. The child has the typical phenotype of dup(16p) even though the extra piece of 16p is small (16p13.1----pter). Manifestations include severe developmental delay, rounded face, sparse hair, ear anomalies, hypertelorism, cleft soft palate, a thin vermilion border of the upper lip, and left renal dysgenesis. We review 16p duplications.
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Affiliation(s)
- T A O'Connor
- Children's Mercy Hospital, Kansas City, Missouri
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