1985
DOI: 10.1056/nejm198509193131202
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Reduced Sensitivity of Lymphocyte Beta-Adrenergic Receptors in Patients with Endogenous Depression and Psychomotor Agitation

Abstract: It has been suggested that there are altered levels of norepinephrine or other neurotransmitters at functionally important receptors in patients with depressive disorders. This hypothesis is difficult to study in the human central nervous system. However, noradrenergic function can be assessed indirectly with peripheral-blood lymphocytes used as a model of the beta-adrenergic receptor complex. We found that drug-free inpatients with endogenous depression had lower isoproterenol-stimulated cyclic AMP levels in … Show more

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Cited by 152 publications
(44 citation statements)
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“…Indeed, reduced levels of the β-adrenergic receptor were previously extensively described in mononuclear leukocytes of patients with unipolar and bipolar depression (40)(41)(42)(43)(44). However, our functional measures, together with the complementary immunoblot studies, suggest also direct, quantitative, and functional reductions in G s protein in mononuclear leukocytes of depressed patients at the postreceptor level that are in accordance with functional findings of reduced β-adrenergic-receptor-coupled adenylate cyclase activity in patients with depression (40,41,(45)(46)(47). Most evidence suggests that muscarinic receptor characteristics are not altered in patients with affective disorder (37).…”
Section: Resultssupporting
confidence: 89%
“…Indeed, reduced levels of the β-adrenergic receptor were previously extensively described in mononuclear leukocytes of patients with unipolar and bipolar depression (40)(41)(42)(43)(44). However, our functional measures, together with the complementary immunoblot studies, suggest also direct, quantitative, and functional reductions in G s protein in mononuclear leukocytes of depressed patients at the postreceptor level that are in accordance with functional findings of reduced β-adrenergic-receptor-coupled adenylate cyclase activity in patients with depression (40,41,(45)(46)(47). Most evidence suggests that muscarinic receptor characteristics are not altered in patients with affective disorder (37).…”
Section: Resultssupporting
confidence: 89%
“…Impaired cAMP production has been reported in agitated depressives, not in retarded depressives (Mann et al 1985). Halper et al (1988) also reported that both basal cAMP and isoproterenol-stimulated cAMP levels are lower in hospitalized, depressed patients.…”
Section: Discussionmentioning
confidence: 96%
“…The S/S genotype, which is considered to be slow for 5HT transport [30] , was found to be correlated with the severity of depression assessed by HAM-D, although the signifi cance of this observation remains to be determined, and results may be limited by the small number of patients included in the study. However, some studies in mononuclear leukocytes, such as the isoproterenol stimulation of cAMP, are negatively correlated with the severity of depression [33] or psychomotor activation [34] . Moreover, a signifi cant, positive correlation was reported for taurine levels in lymphocytes and the severity of a depressive disorder [35] , but no relationship between immune variables and the severity of the illness has been observed [36] .…”
Section: P42 C43 P44 P51 C52mentioning
confidence: 99%