title: Immunoglobulins of rnu/rnu 'nude' rats with congenital aplasia of the thymus.
abstract: The levels of immunoglobulins (Ig) in the serum and saliva of nude (rnu/rnu) congenitally athymic rats and control (rnu/+) thymic heterozygous rats have been studied. Serum IgM, and serum and salivary IgA levels were virtually identical between rnu/rnu and rnu/+ rats. Serum IgG was drastically reduced in nude rats during the period when endogenous IgG synthesis was predominant. The most consistent and pronounced differences in Ig levels between rnu/rnu and rnu/+ rats involved the IgG isotype.
mesh_terms: D000375:Aging; D000818:Animals; D007070:Immunoglobulin A / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007136:Immunoglobulins / Q000032:analysis*; D007419:Intestinal Secretions / Q000276:immunology; D051381:Rats; D011922:Rats, Mutant Strains / Q000276:immunology*; D012463:Saliva / Q000276:immunology; D013950:Thymus Gland / Q000276:immunology*
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins