Abstract：
BACKGROUND:Depression and other psychiatric illnesses are common during pregnancy and are often treated with antidepressants. Physiological changes of pregnancy may alter the pharmacokinetics of medications and ultimately affect the dose required to maintain effective therapy. Human hair offers a safe, non-invasive way to monitor long term systemic exposures to medications. OBJECTIVE:To determine whether the ratio of hair antidepressant: major metabolite differed when early and late pregnancy was compared to the postpartum period. METHODS:Segmental analyses using liquid chromatography-mass spectrometry-mass spectrometry were performed on hair samples. The mean concentration of parent compound and metabolite was found for each trimester and the postpartum period. RESULTS:Twelve women provided hair samples of which nine samples were long enough to analyze the first and third trimesters along with the postpartum period. Citalopram, venlafaxine, fluoxetine and sertraline were the antidepressants studied. In the citalopram group, a statistically significant difference existed between the citalopram:norcitalopram ratio when the first trimester was compared to the postpartum period (0.89+/-0.26 versus 1.4+/-0.24 respectively, p=0.022). A statistically significant difference also existed between the third trimester and the postpartum period for the citalopram group (0.9+/-0.14 and 1.4+/-0.24 respectively, p=0.048). No other statistically significant differences were found. CONCLUSION:It is important that variations in drug metabolism during pregnancy be considered as these changes may necessitate a dosage adjustment to ensure that therapeutic failure does not occur during pregnancy.
journal_name
Forensic Sci Intjournal_title
Forensic science internationalauthors
O'Brien L,Baumer C,Thieme D,Sachs H,Koren Gdoi
10.1016/j.forsciint.2009.12.034subject
Has Abstractpub_date
2010-03-20 00:00:00pages
93-6issue
1-3eissn
0379-0738issn
1872-6283pii
S0379-0738(09)00535-0journal_volume
196pub_type
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pub_type： 历史文章,杂志文章
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更新日期：2018-06-01 00:00:00
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更新日期：1997-01-17 00:00:00
