title: Lymphocyte proliferation in a 31-week premature neonate with 69, XXX chromosomal constitution.
abstract: The clinical syndrome of triploidy has only recently been described with its phenotypic characteristics emerging from a series of descriptive case reports. This paper describes the mitogen induced lymphocyte proliferative responses of a 31-week gestation neonate. Similar data, collected simultaneously, from 27 healthy 30-32-week gestation neonates is also reported for comparison. Since the capability of lymphocytes to become activated is dependent on and indicative of the host's ability to develop a cellular immune reaction, these data indicate no diminution in cell mediated immunity by this polyploid individual.
mesh_terms: D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D007231:Infant, Newborn; D007234:Infant, Premature; D008213:Lymphocyte Activation; D008934:Mitogens / Q000494:pharmacology; D011123:Polyploidy
chemical_list: D008934:Mitogens