title: [A cytogenetic study of the functions of the variable regions in human C heterochromatin. III. The relationship between the amount of C heterochromatin and the occurrence of the fetal alcohol syndrome].
abstract: It has been shown elsewhere that in children with growth retardation and gene syndromes (Russell-Silver, Dubowitz etc.), and in healthy children with inherited short stature the total amount of C heterochromatin in chromosomes 1, 9, and 16 was reduced as compared to the control. A correlation between the C heterochromatin reduction and the intrauterine growth retardation was suggested. A study of C heterochromatin in patients with fetal alcohol syndrome has shown that the chromosome sets of all the 11 children examined are identical to those of the above-mentioned patients. This fact may indicate that a small amount of C heterochromatin may play the leading role in realization of the alcohol effect, since this C heterochromatin deficiency makes the early embryogenesis open to injury to external effects. A possible functional role of C heterochromatin in disturbances of the developmental homeostasis are discussed. These disturbances concern the growth retardation and the lack of resistance to the effect of external and internal factors.
authors.forename: O A
authors.initials: OA
authors.lastname: Podugol'nikov
authors.forename: V G
authors.initials: VG
authors.lastname: Solonichenko
mesh_terms: D002648:Child; D002878:Chromosomes, Human, Pair 1 / Q000235:genetics / Q000648:ultrastructure; D002885:Chromosomes, Human, Pair 16 / Q000235:genetics / Q000648:ultrastructure; D002899:Chromosomes, Human, Pair 9 / Q000235:genetics / Q000648:ultrastructure; D005260:Female; D063647:Fetal Alcohol Spectrum Disorders / Q000209:etiology / Q000235:genetics*; D006570:Heterochromatin / Q000235:genetics* / Q000648:ultrastructure; D006801:Humans; D008297:Male; D011110:Polymorphism, Genetic / Q000235:genetics*; D014998:Y Chromosome / Q000235:genetics / Q000648:ultrastructure
chemical_list: D006570:Heterochromatin