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Published on: September 23, 2015
Potential involvement of NET polymorphism in serotonin/norepinephrine reuptake inhibitor response in panic disorder
Hae Jeong Park1, Su Kang Kim1, Won Sub Kang2
1a Kohwang Medical Research Institute, School of Medicine, Kyung Hee University , Seoul , Republic of Korea.
Background:
This is a pilot study assessing the impact of polymorphisms of serotonin transporter (5-HTT; 5-HTTLPR (S/L)) and norepinephrine transporter (NET; rs2242446 (T/C)) genes on selective serotonin reuptake inhibitors (SSRIs) and serotonin/norepinephrine reuptake inhibitors (SNRIs) response in Korean panic disorder (PD) patients.
Methods:
PD patients were treated with SSRI (n = 18) or SNRI (n = 6) for 4 weeks. Panic Disorder Severity Scale (PDSS) was rated to evaluate the treatment response. Wilcoxon signed-rank test was used to compare PDSS scores before and after medication (SSRI or SNRI) as well as to compare those according to genotypes. Mann-Whitney U test was used to compare those between the two groups (SSRI or SNRI).
Results:
Both SSRI and SNRI treatments for 4 weeks significantly reduced PDSS scores. We assessed the impact of rs2242446 on this effect of SSRI and SNRI. The scores were significantly decreased after 4 weeks in the SSRI-treated group regardless of genotypes of rs2242446, whereas they were significantly decreased in the SNRI-treated group with only non-C carrier (TT) of rs2242446. On 5-HTTLPR we could not analyse because 22 patients had SS genotype.
Conclusions:
These results suggest that NET polymorphism may affect the SNRI response in Korean PD patients.
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