Cerebral MR Spectroscopy Evaluation of the Neuroprotective Effects of Lithium and Olanzapine in Bipolar Affective Disorder Patients

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Tarih

2008

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Dergi ISSN

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Yayıncı

Universitatsverlag Ulm Gmbh

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

Aim: We used the NAA measurements obtained by cerebral magnetic resonance spectroscopy to evaluate the neuroprotective effects of lithium and olanzapine in bipolar affective disorder patients in remissions. Methods:Ten bipolar affective disorder patients on lithium treatment for the last six years and who had not experienced a manic or depressive attack for the last three years and were followed up at the psychiatry outpatients department were included in the study. The patients were evaluated while on lithium, 14 days after lithium was stopped and at the end of the 411 week following olanzapine initiation, for a total of three times. Each evaluation consisted of a psychiatric interview, the Hamilton Depression Rating Scale (HDRS) and the Bech-Rafaelson Mania Scale (BRMS) in addition to MR spectroscopy imaging. Results: The cases were compared with a control group consisting of 10 age- and sex-matched healthy subjects. We measured the N-acetyl aspartate (NAA) peak quantitatively in the right dorsolateral prefrontal cortex (DLPF) and left hippocampus areas on MR spectroscopy and checked the ratio to the creatine (Cr) peak. The values from all three imaging studies were compared with each other and with the control subjects. Conclusions: There was no statistically significant difference between the NAA/Cr ratios of the patients receiving lithium, those not on medications or those receiving olanzapine and the healthy subjects. We did not observe any change in cerebral NAA levels following lithium and olanzapine treatment in bipolar affective disorder patients in remission.

Açıklama

Anahtar Kelimeler

Bipolar affective disorder, lithium, olanzapine, neuroprotective effect, N-acetyl aspartate

Kaynak

Neurology Psychiatry and Brain Research

WoS Q Değeri

Q4

Scopus Q Değeri

Q3

Cilt

15

Sayı

1

Künye