Introduction. ...................................... Lymphopoiesis. ................. : ................... Lymphocyte compartments. ........................ Origin of thymus lymphocytes. ..................... Proliferation of thymus lymphocytes. ................ Fate of thymus lymphocytes. ....................... Regulation of thymus lymphopoiesis ................. Evidence linking some lympho...

Antibodies to purified calf thymus Fl, and to chromatographically purified subfractions of calf thymus Fl histones were induced by immunization of rabbits with histone-RNA complexes. Complement fixation studies with these antibodies demonstrated structural differences between the subfractions in one organ and between those of different organs and species. The anti-F1 sera showed varying reactiv...

BACKGROUND AND PURPOSE Although the thymus is centered in the mediastinum, often a cervical component can be seen in children and young adults. The frequency of radiologically evident residual cervical thymus in older adults is not known. The purpose of our study was to determine the proportion of adults who have residual cervical thymus visible on contrast-enhanced neck CT. MATERIALS AND MET...

Antibodies to chromatographically purified rat thymus Fl histone subfractions were induced in rabbits by immunization with histone-RNA complexes. The immunological relatedness between each of the rat thymus Fl subfractions and subfractions derived chromatographically from calf thymus and rat liver Fl was determined by quantitative microcomplement fixation. The various rat thymus peaks elicited ...

Thymus is a bilobed organ usually situated in the superior mediastinum. Thymus is normally active until puberty and as age advances it undergoes considerable fibrofatty degeneration and is replaced by fatty tissue. We found a persistent thymus in an adult male cadaver aged 70 years approximately. It apparently looked healthy. Hence the objective of this study was to know the morpho-histology of...