Beta receptor density in human lymphocyte membranes

Changes with aging?

D. W. Gietzen, T. A. Goodman, P. G. Weiler, K. Graf, D. R. Fregeau, J. R. Magliozzi, A. R. Doran, Richard J Maddock

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The number of beta adrenergic binding sites (Bmax) in human lymphocyte membranes has been reported to decrease, remain the same, or increase with age. In order to address this issue, we used two highly specific beta receptor ligands with lymphocytes from healthy aged (range: 51-90 years) and young (19-39 years) subjects in two separate studies. Because depression can reduce Bmax, potential aged subjects were excluded if they had high scores on tests for depression. Bmax was higher in the aged group of each study (33% higher in the first, p < .01, and 72.5% in the second, p < .02); the results were similar in both studies. Antagonist affinity did not differ between young and aged groups in either study. We suggest that some of the discrepancies in the literature could be due to differences in age ranges used or to inclusion of depressed subjects in prior studies.

Original languageEnglish (US)
JournalJournals of Gerontology
Volume46
Issue number4
StatePublished - 1991

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Lymphocytes
Membranes
Adrenergic Agents
Binding Sites
Ligands

ASJC Scopus subject areas

  • Aging

Cite this

Gietzen, D. W., Goodman, T. A., Weiler, P. G., Graf, K., Fregeau, D. R., Magliozzi, J. R., ... Maddock, R. J. (1991). Beta receptor density in human lymphocyte membranes: Changes with aging? Journals of Gerontology, 46(4).

Beta receptor density in human lymphocyte membranes : Changes with aging? / Gietzen, D. W.; Goodman, T. A.; Weiler, P. G.; Graf, K.; Fregeau, D. R.; Magliozzi, J. R.; Doran, A. R.; Maddock, Richard J.

In: Journals of Gerontology, Vol. 46, No. 4, 1991.

Research output: Contribution to journalArticle

Gietzen, DW, Goodman, TA, Weiler, PG, Graf, K, Fregeau, DR, Magliozzi, JR, Doran, AR & Maddock, RJ 1991, 'Beta receptor density in human lymphocyte membranes: Changes with aging?', Journals of Gerontology, vol. 46, no. 4.
Gietzen DW, Goodman TA, Weiler PG, Graf K, Fregeau DR, Magliozzi JR et al. Beta receptor density in human lymphocyte membranes: Changes with aging? Journals of Gerontology. 1991;46(4).
Gietzen, D. W. ; Goodman, T. A. ; Weiler, P. G. ; Graf, K. ; Fregeau, D. R. ; Magliozzi, J. R. ; Doran, A. R. ; Maddock, Richard J. / Beta receptor density in human lymphocyte membranes : Changes with aging?. In: Journals of Gerontology. 1991 ; Vol. 46, No. 4.
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