Objectives: The aim of this study was to elucidate the role of dopamine receptor D2 / ankyrin repeat and protein kinase domain containing 1 (DRD2/ANKK1) TaqIA allelic polymorphism in the HPVinduced cervical carcinogenesis. Methods: 1. Effect on the risk of cervical precancer: After an 8year followup, out of 214 women with persisting highrisk HPV infection, 102 developed highgrade cervical dysplasia or cervical intraepithelial neoplasia (CIN) grade III, while 112 did not. The subjects were genotyped for the DRD2/ANKK1 TaqIA polymorphism by PCRRFLP, and the allelic distributions were compared between groups with and without highgrade dysplasia. 2. Prognostic value: Two hundred and thirty nine women with cervical precancer/cancer were followed for 5 years. Complete remission was achieved at 182 women. To assess the prognostic value of the TaqIA polymorphism, genotype frequencies were compared between patients reaching and not reaching complete remission. Results: The frequency of A1/A1+A1/A2 genotypes was higher among women who developed highgrade cervical dysplasia (OR: 1.87, 95% CI: 1.053.33; p=0.034) than in the other group. Occurrence of the A1 allele was more frequent among women who did not reach complete remission (OR: 2.00, 95% CI: 1.073.74; p=0.030) than in women with complete remission. Conclusions: This is the first report on the possible involvement of DRD2/ANKK1 TaqIA polymorphism in cervical carcinogenesis. The A1 allele seems to increase the risk of cervical precancer, and it may also be associated with a worse prognosis in women with HPVinduced cervical cancer. The results need further validation in largescale molecular epidemiological studies., József Cseh, Zsuzsa Orsós, Emese Pázsit, Erika Marek, András Huszár, István Ember, István Kiss, and Literatura
Porucha pozornosti s hyperaktivitou – ADHD (Attention Deficit Hyperactivity Disorder) představuje široce rozšířenou neurobiologickou poruchu v dětském věku s poměrně vysokou mírou genetické podmíněnosti. Heritabilita symptomů ADHD je uváděna až na úrovni 75 %. Mechanizmus genetického přenosu však stále není zcela objasněn. Největší pozornost je v současné době zaměřena na geny dopaminergního a serotoninergního systému, ale i řadu genů dalších. Článek přináší souhrnné informace o nejvýznamnějších genetických asociacích u ADHD., Attention deficit hyperactivity disorder (ADHD) is a common, probably highly genetically conditioned, neurobiological disorder. Heritability of ADHD symptoms is up to about 75%. However, the mechanism is still not fully understood. Attention is focused mainly on genes of the dopaminergic and serotonergic system as well as many other genes. The paper presents a summary of the most significant genetic associations with ADHD., and H. Kuželová, M. Macek jr, J. Raboch, R. Ptáček