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Abstrakty
In this case report we present a child with an additional chromosome in the karyotype. The karyotypes of the boy and his parents were analyzed by use of a conventional banding technique (GTG) and fluorescence in situ hybridization (FISH). Probes painting whole chromosomes 12 and 18 were used in FISH. Cytogenetic examination of the parents revealed that his mother was carrying balanced reciprocal translocation between chromosomes 12 and 18. Her karyotype was described as 46,XX,t(12;18)(p13;q12). Father's karyotype was normal, described as 46,XY. The boy's karyotype was defined as 47,XY,+der(18)t(12;18)(p13;q12). The additional chromosome appeared probably due to 3 : 1 meiotic disjunction of the maternal balanced translocation, known as tertiary trisomy. The mother displayed a normal phenotype and delivered earlier a healthy child. However, the boy with the unbalanced karyotype shows multiple congenital abnormalities.
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Czasopismo
Rocznik
Tom
Numer
Strony
419-421
Opis fizyczny
p.419-421,fig.,ref.
Twórcy
autor
- University of Rzeszow, Sokolowska 26, 36-100 Kolbuszowa, Poland
autor
autor
autor
autor
autor
autor
Bibliografia
- Braddock SR, Henley KM, Potter KL, Nguyen HG, Huang TH, 2000. Tertiary trisomy due to a reciprocal translocation of chromosomes 5 and 21 in a four-generation family. Am J Med Genet 92: 311-317.
- Bugge M, Bruun-Petersen G, Brondum-Nielsen K, Friedrich U, Hansen J, Jensen G, et al. 2000. Disease associated balanced chromosome rearrangements: a resource for large-scale genotype-phenotype delineation in man. J Med Genet 37: 858-865.
- Goldman AS, Hulten MA, 1993. Meiotic analysis by FISH of a human male 46,XY,t(15;20) (q11.2;q11.2) translocation heterozygote: quadrivalent configuration, orientation and first meiotic segregation. Chromosoma 102: 102-111.
- [ISCN] International System for Human Cytogenetic Nomenclature, 1995. Mitelman F, Karger S, eds., Basel.
- Kozma C, Slavotinek AM, Meek JM, 2004. Segregation of a t(1;3) translocation in multiple affected family members with both types of adjacent-1 segregants. Am J Med Genet A124: 118-128.
- Morel F, Douet-Guilbert N, Le Bris MJ, Herry A, Marchetti C, Lefebvre V, et al. 2004. Lack of intraindividual variation of unbalanced spermatozoa frequencies from a 46,XY,t(9;22)(q21;q11.2) carrier: case report. Hum Reprod 19: 2227-2230.
- Oliver-Bonet M, Navarro J, Carrera M, Egozcue J, Benet J, 2002. Aneuploid and unbalanced sperm in two translocation carriers: evaluation of the genetic risk. Mol Hum Reprod 8: 958-963.
- Patel ZM, Madon P, 2004. Interchange trisomy 22 in a live born resulting from 3 : 1 segregation in a t(15;22)(p12;q13) carrier mother. Indian J Pediatr 71: 1042-1042.
- Santos CB, Discepoli G, Pigliapoco F, Boy R, Pimentel MM, 2003. De novo balanced translocation (2;10)(q24;q22) associated with mental retardation. Ann Genet 46: 471-473.
- Wojda A, Wolnik-Brzozowska D, Lubka M, Mossakowska M, Witt M, 2003. The 102-year-old woman with translocation (7; 12) and infertility in anamnesis. J Appl Genet 44: 425-427.
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Bibliografia
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