Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1985-7-31
pubmed:abstractText
Twenty-nine healthy volunteers participated in an experiment lasting for 8 weeks: Phase I (2 weeks)--pre-treatment control period; Phase II (4 weeks)--medication with either ciclazindol hydrochloride (50 mg twice daily), or desipramine hydrochloride (50 mg twice daily) or lactose placebo (twice daily) administered in a single-blind fashion; Phase II (2 weeks)--recovery. Experimental sessions took place twice weekly for the photographic assessment of resting pupil diameter, and for the assessment of one of the following pupillary responses: mydriatic response to methoxamine, mydriatic response to tyramine, miotic response to pilocarpine. Resting pupil diameter increased during medication with either ciclazindol or desipramine. Methoxamine-evoked mydriasis and tyramine-evoked mydriasis were antagonized by both ciclazindol and desipramine. Pilocarpine-evoked miosis was potentiated by both ciclazindol and desipramine. The steady-state plasma levels (mean +/- s.e. mean) of the antidepressants were: ciclazindol: 5.90 +/- 0.74 microM; desipramine: 0.60 +/- 0.17 microM. The antagonism of methoxamine-evoked mydriasis is likely to reflect the blockade of postsynaptic alpha 1-adrenoceptors in the iris by the antidepressants, whereas the antagonism of tyramine-evoked mydriasis may reflect both the blockade of uptake of tyramine into presynaptic adrenergic terminals and the blockade of postsynaptic alpha-adrenoceptors. There is no immediate explanation for the potentiation of pilocarpine-evoked miosis by the two antidepressants.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-1233998, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-14603, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-4155974, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-507990, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-508534, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-5781738, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-588839, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-6163, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-6265223, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-6267618, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-6352281, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-7074302, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-7438688, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-7470769, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-843425, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-901726, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-901738, http://linkedlifedata.com/resource/pubmed/commentcorrection/4005103-96461
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0306-5251
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
639-47
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Comparison of the effects of chronic administration of ciclazindol and desipramine on pupillary responses to tyramine, methoxamine and pilocarpine in healthy volunteers.
pubmed:publicationType
Journal Article, Clinical Trial, Comparative Study, Controlled Clinical Trial, Research Support, Non-U.S. Gov't