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학술저널
저자정보
손명희 (전북대학교) 한연희 (전북대학교) 정환정 (전북대학교병원 핵의학과) 김은미 (전북대학교) Fatima Boud (전북대학교병원 핵의학과) 임석태 (전북대학교병원 핵의학과) 이선영 (전북대학교병원 방사선종양학과)
저널정보
연세대학교 의과대학 Yonsei Medical Journal Yonsei Medical Journal 제62권 제6호
발행연도
2021.1
수록면
555 - 562 (8page)

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Purpose: This study aimed to investigate the effect of ursodeoxycholic acid (UDCA) on the biodistribution and excretion of technetium-99m (Tc-99m)-labeled radiopharmaceuticals. Materials and Methods: Tc-99m hydroxy-methylene-diphosphonate (HDP), Tc-99m pertechnetate, and Tc-99m dimercaptosuccinicacid (DMSA) were injected via the tail vein of rats. After 30 min, the control group was administered saline, and the UDCAgroup was given UDCA orally. Scintigraphy images were acquired after 30 min and 1, 2, 3, and 4 h. Radioactivity and rate of changewere compared. Tc-99m mercaptoacetyltriglycine (MAG3) imaging was also performed. Results: In image analysis of Tc-99m HDP, radioactivity of the buttock was lower in the UDCA group at 4 h. Rates of change in thebuttock were significantly different at 3 h?30 min and 4 h?30 min, and buttock radioactivity in the UDCA group had decreasedmore. In analysis of Tc-99m pertechnetate, radioactivity of the buttock was higher in the control group. Rates of change in the thyroidgland and buttock were different at 1 h?30 min, 3 h?30 min, and 4 h?30 min, with radioactivity in the UDCA group decreasingmore. In the analysis of Tc-99m DMSA, while the radioactivity of the kidneys in the control group showed little decrease at 1 h?30min, that in the UDCA group increased. In the analysis of Tc-99m MAG3 images, radioactivity and radioactivity/total body radioactivity(TBA) values for the kidneys were higher in the UDCA group at 2 min. At 5 and 10 min, radioactivity/TBA values for soft tissuein the UDCA group were lower than those in the control group. Conclusion: This study demonstrated that administration of UDCA increases renal excretion and soft tissue clearance of radiopharmaceuticals. This investigation could contribute to the broadening of applications of UDCA.

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