PMID- 6576185 OWN - NLM STAT- MEDLINE DCOM- 19830923 LR - 20071114 IS - 0027-8874 (Print) IS - 0027-8874 (Linking) VI - 71 IP - 2 DP - 1983 Aug TI - Immune responses of healthy humans 83-104 years of age. PG - 265-8 AB - The immune responses of 19 healthy people 83-104 years of age were compared to those of younger healthy persons. A decline in mitogen response to concanavalin A and pokeweed mitogen, but not to phytohemagglutinin, was observed. Positive skin test to two recall antigens occurred in only 5 of the 19 aged people; 4 of these 5 reported a history of blood transfusion. Antibody titers were elevated for persistent DNA viruses but not for RNA viruses. An excess of ABO blood type B was found, but no human leukocyte antigen (HLA)-A or HLA-B type was found in elevated proportion. FAU - Dworsky, R AU - Dworsky R FAU - Paganini-Hill, A AU - Paganini-Hill A FAU - Arthur, M AU - Arthur M FAU - Parker, J AU - Parker J LA - eng GR - CA-14089/CA/NCI NIH HHS/United States GR - CA-24082/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Natl Cancer Inst JT - Journal of the National Cancer Institute JID - 7503089 RN - 0 (ABO Blood-Group System) RN - 0 (Mitogens) SB - IM MH - ABO Blood-Group System/immunology MH - *Aged MH - Antibody Formation MH - Blood Transfusion MH - DNA Viruses/immunology MH - Female MH - Humans MH - *Immunity MH - Leukocyte Count MH - Lymphocyte Activation MH - Male MH - Mitogens MH - RNA Viruses/immunology MH - Skin Tests EDAT- 1983/08/01 00:00 MHDA- 1983/08/01 00:01 CRDT- 1983/08/01 00:00 PHST- 1983/08/01 00:00 [pubmed] PHST- 1983/08/01 00:01 [medline] PHST- 1983/08/01 00:00 [entrez] PST - ppublish SO - J Natl Cancer Inst. 1983 Aug;71(2):265-8.