title: Lack of discernible effect of diagnostic ultrasound on the chromosomes of cord blood lymphocytes exposed in utero.
abstract: The levels of either sister chromatid exchanges or chromosome breakage (as assayed by the frequency of micronuclei) in cord blood lymphocytes from a total of 62 babies were analysed. The exposure of these babies to ultrasound during gestation was determined retrospectively from medical records and the data reclassified accordingly. No correlation was seen between the levels of chromosome breakage, as measured by these two end-points, and exposure to ultrasound.
mesh_terms: D000818:Animals; D002875:Chromosomes / Q000528:radiation effects*; D006224:Cricetinae; D005260:Female; D005312:Fetal Blood / Q000528:radiation effects*; D006801:Humans; D007231:Infant, Newborn; D008214:Lymphocytes / Q000528:radiation effects*; D051379:Mice; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011263:Pregnancy Trimester, Third; D012854:Sister Chromatid Exchange / Q000528:radiation effects; D014463:Ultrasonography