title: [Heterochromatic regions of chromosomes 1, 9, 16 and Y in children with signs of embryonic development disorder].
abstract: Some reduction of the length of C segments and their variability in chromosomes 1, 9, 16 and Y was exhibited by children having disturbances at an early stage of embryogenesis. The data obtained might suggest a certain activity of the heterochromatic regions during the embryo development. Based on these data, one may also suppose that reduction of the heterochromatin amount may affect the normal morphogenetic processes.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D002900:Chromosomes, Human, 1-3 / Q000648:ultrastructure*; D002902:Chromosomes, Human, 16-18 / Q000648:ultrastructure*; D002906:Chromosomes, Human, 6-12 and X / Q000648:ultrastructure*; D000013:Congenital Abnormalities / Q000235:genetics*; D005260:Female; D006570:Heterochromatin / Q000648:ultrastructure*; D006801:Humans; D007223:Infant; D008297:Male; D012730:Sex Chromosomes / Q000648:ultrastructure*; D014998:Y Chromosome / Q000648:ultrastructure*
chemical_list: D006570:Heterochromatin
vernacular_title: Geterokhromaticheskie raĭony khromosom 1, 9, 16 i Y u deteĭ s priznakami narusheniia émbrional'nogo razvitiia.