A 45,X male with molecular evidence of a translocation of Y euchromatin onto chromosome 1
✍ Scribed by Nacer Abbas; Giuseppe Novelli; Narcisio Carlo Stella; Onofrio Triolo; Francesco Corrado; Marc Fellous; Michèle Chery; Simone Gilgenkrantz; Bruno Dallapiccola
- Publisher
- Springer
- Year
- 1990
- Tongue
- English
- Weight
- 848 KB
- Volume
- 86
- Category
- Article
- ISSN
- 0340-6717
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✦ Synopsis
A 45,X complement was found in lymphocyte and fibroblast cultures of a male infant with severe growth and mental retardation and mild dysmorphism. Lymphocyte DNA from this patient was found to contain Yp chromosome sequences. In situ hybridization (ISH) with the 50f2 probe led to a clear assignment of euchromatic material on the short arm of chromosome 1. This observation and others from the literature argue in favour of the conclusion that all 45,X males are probably either the result of undetected mosaicism or are carriers of Y translocated material.
📜 SIMILAR VOLUMES
An unbalanced X/Y translocation was found in a male child with malformed external genitalia and in his mother, who are respectively nullisomic and monosomic for the distal portion of Xp and have the translocated distal segment of Yq in excess. The loss of the distal portion of Xp is supposed to be t