RT Journal Article SR Electronic A1 Vrtel, Petr A1 Vrtel, Radek A1 Klaskova, Eva A1 Vrbicka, Dita A1 Adamova, Katerina A1 Pavlicek, Jan A1 Hana, Vaclav A1 Hana, Vaclav A1 Soucek, Ondrej A1 Stara, Veronika A1 Lebl, Jan A1 Snajdrova, Marta A1 Zapletalova, Jirina A1 Furst, Tomas A1 Kapralova, Sabina A1 Tauber, Zdenek A1 Krejcirikova, Eva A1 Routilova, Marketa A1 Stellmachova, Julia A1 Vodicka, Radek A1 Prochazka, Martin T1 Haplotype analysis of the X chromosome in patients with Turner syndrome in order to verify the possible effect of imprinting on selected symptoms JF Biomedical papers YR 2022 VO 166 IS 1 SP 63 OP 67 DO 10.5507/bp.2020.060 UL https://biomed.papers.upol.cz/artkey/bio-202201-0009.php AB Aims. Turner syndrome is the only chromosome monosomy that is postnatally compatible with life. The reported incidence of TS is 1 in 2500 liveborn girls. The phenotype of these girls is highly variable, with cardiac abnormalities being life-threatening defects. The aim of the study was to reveal the possible influence of the parental origin of the X chromosome in these patients on a selected phenotype that is associated with Turner syndrome. Selected symptoms and parameters were: a bicuspid aortic valve, aortic coarctation, lymphoedema, pterygium colli, coeliac disease, thyroiditis, otitis media, diabetes mellitus 2, renal abnormalities, spontaneous puberty, and IVF. Methods. The X chromosome haplotype was determined for a group of 45,X patients verified by native FISH. A molecular diagnostic method based on the detection of different lengths of X chromosome-linked STR markers using the Argus X-12 QS kit was used to determine the X haplotype. Results. Our results, analysed by Fisher's exact (factorial) test, suggest independence between the maternal/paternal origin of the inherited X chromosome and the presence of the anomalies that were studied (P=1 to P=0.34). Conclusion. In the group of 45,X patients, who were precisely selected by means of the native FISH method, no correlation was demonstrated with the parental origin of the X chromosome and the observed symptom.