title: [Thymus and adaptive changes of bone marrow cell composition in animals of different age].
abstract: The influence of thymus removal or administration of thymalin, thymic peptide factor, on number of cells-precursors for colonies of fibroblasts (CFC-F) and for granulocyte-macrophageal colonies (CFC-GM), CD(4+)-cells in bone marrow in CBA mice of different age in some seasons was investigated. It was shown that in adult mice the orientation of influence thymic activity modulation on amount of these types cells is dependent from seasons. It was shown the season possibility of direct effect of thymic stroma supernatant, in which was thymic serum factor (FTS), or the synthetic FTS on the amount of CFC-F and CFC-GM in bone marrow of adult mice; in old mice thymic supernatant increased in vitro the amount of CD(4+)-cells. FTS level in old mice increased after administration of thymalin, the rhythm of CD(4+)-cells number in bone marrow and of corticosterone serum content restored.
authors.forename: I F
authors.initials: IF
authors.lastname: Labunets
authors.forename: A E
authors.initials: AE
authors.lastname: Rodnichenko
authors.forename: L V
authors.initials: LV
authors.lastname: Magdich
authors.forename: G M
authors.initials: GM
authors.lastname: Butenko
mesh_terms: D000222:Adaptation, Physiological; D000367:Age Factors; D000375:Aging / Q000187:drug effects / Q000502:physiology*; D000818:Animals; D001854:Bone Marrow Cells / Q000166:cytology / Q000187:drug effects / Q000502:physiology*; D002940:Circadian Rhythm; D005260:Female; D008297:Male; D051379:Mice; D008808:Mice, Inbred CBA; D013935:Thymic Factor, Circulating / Q000502:physiology*; D013950:Thymus Gland / Q000502:physiology*; D013951:Thymus Hormones / Q000494:pharmacology / Q000502:physiology*
chemical_list: D013951:Thymus Hormones; C032805:thymalin; D013935:Thymic Factor, Circulating