Drugs online research references
J Affect Disord. 1997 Nov;46(2):127-34.
Enhanced displacement of [3H]imipramine, but not [3H]paroxetine binding by plasma from depressed patients.
Lawrence KM, Lowther S, Falkowski J, Jacobson RR, Horton RW.
Department of Pharmacology and Clinical Pharmacology, St. George's Hospital Medical School, London, UK.
Plasma from healthy subjects inhibited the binding of [3H]imipramine competitively and [3H]paroxetine non-competitively to platelet membranes in a volume-dependent manner. Plasma from 40 depressed patients was more effective at inhibiting [3H]imipramine, but not [3H]paroxetine, binding compared to plasma from matched controls. This difference was not related to recent antidepressant treatment. The results suggest that the concentration of an endogenous modulator of [3H]imipramine binding is increased in depressive illness. The concentration of alpha 1-acid glycoprotein, a proposed endogenous modulator of [3H]imipramine binding, did not differ between depressed patients and controls. Our results suggest that factors other than alpha 1-acid glycoprotein may modulate [3H]imipramine binding.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9479616&dopt=Abstract
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J Affect Disord. 1997 Nov;46(2):151-6.
Breast enlargement during chronic antidepressant therapy.
Amsterdam JD, Garcia-Espana F, Goodman D, Hooper M, Hornig-Rohan M.
Department of Psychiatry, University of Pennsylvania Medical Center, Philadelphia 19104, USA.
Recent reports of mammoplasia during selective serotonin re-uptake inhibitor (SSRI) therapy suggested that this side effect may be more common than previously reported. We examined 59 women receiving > or = 2 months treatment with an SSRI or venlafaxine for changes in breast size in relation to menopausal status, weight gain and duration of drug therapy. Serum prolactin, estradiol and beta-hCG were also measured before and during treatment in a subgroup of patients. Twenty-three out of 59 patients (39%) reported some degree of mammoplasia. Significantly more SSRI vs. venlafaxine patients reported mammoplasia (p < 0.01). Eighty-four percent with mammoplasia had weight gain vs. 30% without mammoplasia (p < 0.001). The rate of mammoplasia was unrelated to age, menopausal status or duration of treatment. Serum prolactin increased during treatment in the paroxetine subgroup (p < 0.03). In conclusion, antidepressant-induced mammoplasia may be more common than previously expected.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9479619&dopt=Abstract
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cooper.mhri.edu.au
[3H]Paroxetine binding to the serotonin transporter has been shown to be altered in brain tissue from schizophrenic subjects. Some schizophrenic subjects are treated with antidepressant drugs, some of which bind to the serotonin transporter and their time of death is variable. To determine if these confounding factors could affect [3H]paroxetine binding, [3H]paroxetine binding to cortical membrane from rats treated with the antidepressant drugs for 10 or 28 days and in non-treated rats that were killed at different times of the day was measured. Drug treatment, when compared to injection with 0.9% saline and time of death, did not affect [3H]paroxetine binding. Treatment with imipramine [10 days: mean +/- S.D.: 590 +/- 59 fmol/mg protein (P < 0.05); 28 days: 653 +/- 59 fmol/mg protein (P < 0.01)] or mianserin [10 days: 600 +/- 43 (P < 0.05)] caused a significant decrease in the density of [3H]paroxetine binding compared to that in fluoxetine-treated rats (10 days: 820 +/- 211 fmol/mg protein; 28 days: 764 +/- 100 fmol/mg protein). Thus, overall, these data do not suggest changes in [3H]paroxetine binding reported in the human brain tissue would be due to antidepressant drug treatment or time of death.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9481808&dopt=Abstract
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