Is decreased imipramine binding by platelet membranes in major depression associated with plasma autoantibodies to imipramine binding sites?

Decreases in super(3)H-imipramine binding sites on platelets (B sub(max)) without a significant change in the ligand affinity (K sub(d)) are found in some patients with major depression. The mechanism underlying the reduction in binding site density is not understood. IgGautoantibodies binding to a...

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Veröffentlicht in:Biological psychiatry (1969) 1990-08, Vol.28 (4), p.365-368
Hauptverfasser: Alosachie, Iyad, Peter, James B., Tsuchihashi, Hiroshi, Knight, David L., Nemeroff, Charles B.
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container_end_page 368
container_issue 4
container_start_page 365
container_title Biological psychiatry (1969)
container_volume 28
creator Alosachie, Iyad
Peter, James B.
Tsuchihashi, Hiroshi
Knight, David L.
Nemeroff, Charles B.
description Decreases in super(3)H-imipramine binding sites on platelets (B sub(max)) without a significant change in the ligand affinity (K sub(d)) are found in some patients with major depression. The mechanism underlying the reduction in binding site density is not understood. IgGautoantibodies binding to a variety of specific receptors are known to be important in the pathogenesis of several diseases, including Addison's disease, Graves' disease, myasthenia gravis, and insulin-resistant diabetes mellitus. Accordingly, we studied the effects of IgG from untreated patients with major depression on super(3)H-imipramine binding on platelets from normal volunteers.
doi_str_mv 10.1016/0006-3223(90)90665-O
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subjects autoantibodies
Autoantibodies - analysis
Blood Platelets - immunology
Carrier Proteins
depression
Depressive Disorder - immunology
Humans
imipramine
Imipramine - pharmacokinetics
Immunoglobulin G - analysis
mental disorders
plasma membranes
Radioligand Assay
Receptors, Drug
Receptors, Neurotransmitter - immunology
title Is decreased imipramine binding by platelet membranes in major depression associated with plasma autoantibodies to imipramine binding sites?
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