Weber, AxelAxelWeberKöhler, AngelikaAngelikaKöhlerHahn, AndreasAndreasHahnMüller, UlrichUlrichMüller2022-11-182015-06-302022-11-182014http://nbn-resolving.de/urn:nbn:de:hebis:26-opus-115327https://jlupub.ub.uni-giessen.de/handle/jlupub/9121http://dx.doi.org/10.22029/jlupub-8509BACKGROUND: A 3.68 Mbp duplication of 8p23.1 defines the 8p23.1 duplication syndrome. The main features of this syndrome are developmental delay and/or learning problems. RESULTS: Here we present a patient with a 1.80 Mbp duplication in 8p23.1 and characteristic signs and symptoms of the syndrome, including delay of motor and speech development and intellectual disability. DISCUSSION: The case indicates that genes within this interval, in particular dosage sensitive genes SOX7 and TNKS1, and possibly MIR124-1 and MIR598 as well suffice to cause the pathognomonic features of the 8p23.1 duplication syndrome.enNamensnennung 3.0 International8p23.1 duplication syndrome8p23.1SOX7TNKS1developmental delayddc:6108p23.1 duplication syndrome: narrowing of critical interval to 1.80 Mbp