항우울제 치료 반응의 예측인자로서의 CREB-Phosphorylation
CREB-Phosphorylation as a Predictor of Therapeutic Response to Antidepressants
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Objectives：CREB (c-AMP response element binding protein) is known as a key mediator of the therapeutic response to antidepressants. We investigated the change of CREB-phosphorylation (pCREB) at the early point of the fluoxetine treatment to find out it can be a predictor for antidepressant response. Methods：We evaluated the pCREB of T - lymphocyte nuclear extracts from 18 depressed patients at 0 and 1th week during fluoxetine treatment (20 mg/day). Responders were defined as the>or =50 % reduction of HAM-D score in 4 weeks. We compared the changes of pCREB at 0 and 1th week between responders and non-esponders. Results：The responders showed a significant increase of pCREB at week 1 compared with week 0. The HAM-D difference between week 0 and 4 was positively correlated with the change of pCREB response. Conclusion：These results suggest that the early change of pCREB in peripheral lymphocyte can predict the later response of antidepressant. The correlation showed pCREB directly reflects a response status to the antidepressant fluoxetine and clinical improvement.
Abstract
Objectives：CREB (c-AMP response element binding protein) is known as a key mediator of the therapeutic response to antidepressants. We investigated the change of CREB-phosphorylation (pCREB) at the early point of the fluoxetine treatment to find out it can be a predictor for antidepressant response. Methods：We evaluated the pCREB of T - lymphocyte nuclear extracts from 18 depressed patients at 0 and 1th week during fluoxetine treatment (20 mg/day). Responders were defined as the>or =50 % reduction of HAM-D score in 4 weeks. We compared the changes of pCREB at 0 and 1th week between responders and non-esponders. Results：The responders showed a significant increase of pCREB at week 1 compared with week 0. The HAM-D difference between week 0 and 4 was positively correlated with the change of pCREB response. Conclusion：These results suggest that the early change of pCREB in peripheral lymphocyte can predict the later response of antidepressant. The correlation showed pCREB directly reflects a response status to the antidepressant fluoxetine and clinical improvement.
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