2025. 08.27 (수) ~ 2025. 08.29 (금)
부산항국제전시컨벤션센터(BPEX)
제목 | Solanidine as a Dietary Biomarker for CYP2D6 Activity in a Korean Population and the Discovery of Additional Biomarkers |
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작성자 | 이가영 (서울대학교) |
발표구분 | 포스터발표 |
발표분야 | 4. Medical / Pharmaceutical Science |
발표자 |
이가영 (서울대학교) |
주저자 | 이가영 (서울대학교) |
교신저자 |
조주연 (서울대학교) |
저자 |
이가영 (서울대학교) 채우리 (서울대학교) 배성윤 (서울대학교) 이승환 (서울대학교) 조주연 (서울대학교) 구남이 (동국대병원) 김언혜 (차 병원) |
Solanidine, a steroidal alkaloid found in Solanum genus plants, is the primary aglycone of glycoalkaloids. Solanidine and its metabolite, 3,4-seco-solanidine-3,4-dioic acid (SSDA), have been proposed as sensitive and specific dietary biomarkers for CYP2D6 activity. Recent studies have highlighted their relevance, particularly in Europeans with potato-rich diets. However, their applicability in populations with different dietary patterns remains uncertain, necessitating further validation. This study aimed to assess the utility of solanidine as a CYP2D6 biomarker in a Korean population and to identify novel endogenous biomarkers. In this open-label, three-period clinical trial, we evaluated the effects of the CYP2D6 inhibitor paroxetine on the pharmacokinetics of venlafaxine and its metabolite, O-desmethylvenlafaxine, in 20 healthy subjects, including 14 normal metabolizers (NMs) and 6 intermediate metabolizers (IMs). Additionally, plasma samples collected pre- and post-multiple doses of paroxetine were analyzed for the semi-quantification of solanidine and SSDA using a Q Exactive Plus Orbitrap mass spectrometer coupled with an Ultimate 3000 UPLC. The results showed increased solanidine and decreased SSDA levels after CYP2D6 inhibition. The SSDA/solanidine ratio was significantly higher in NMs than in IMs in both pre- and post-paroxetine samples. These findings support the utility of solanidine as a CYP2D6 biomarker in Koreans. |