The effects of diurnal rhythms on immune parameters in New Hampshire chickens.
The influence of diurnal rhythms on several immune parameters was studied. When thymic-derived lymphocytes were collected 4 times during a 24-hour period, a variation occurred in the migration ability of these cells. The migration of T cells at 2:00 a.m. was markedly lower than at other time periods. Similar results were noted employing other T-cell tests: phytohemagglutinin wattle responsiveness and the graft vs. host assay.
D000818:Animals; D000907:Antibodies, Bacterial / Q000096:biosynthesis; D000942:Antigens, Bacterial / Q000008:administration & dosage; D002003:Brucella abortus / Q000276:immunology; D002465:Cell Movement; D002645:Chickens / Q000276:immunology*; D002940:Circadian Rhythm; D006087:Graft vs Host Reaction; D007109:Immunity; D008213:Lymphocyte Activation; D010835:Phytohemagglutinins / Q000494:pharmacology; D013601:T-Lymphocytes / Q000276:immunology
D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D010835:Phytohemagglutinins