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논문 기본 정보

자료유형
학술저널
저자정보
Young Yoon Bang (The Catholic University of Korea) Min Seo Lee (The Catholic University of Korea) Chang Ho Lim (The Catholic University of Korea) Hye Suk Lee (The Catholic University of Korea)
저널정보
한국질량분석학회 Mass Spectrometry Letters Mass Spectrometry Letters Vol.12 No.3
발행연도
2021.9
수록면
112 - 117 (6page)

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초록· 키워드

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α-Amanitin and β-amanitin are highly toxic bicyclic octapeptides responsible for the poisoning of poisonous mushrooms such as Amanita, Galerina, and Lepiota by inhibiting RNA polymerase II, DNA transcription, and protein synthesis. A sensitive, simple, and selective liquid chromatography-high resolution mass spectrometric method using parallel reaction monitoring mode was developed and validated for the simultaneous determination of α- and β-amanitin in mouse plasma to evaluate the toxicokinetics of α- and β-amanitin in mice. Protein precipitation of 5 μL mouse plasma sample with methanol as sample clean-up procedure and use of negative electrospray ionization resulted in better sensitivity and less matrix effect. The calibration curves for α- and β-amanitin in mouse plasma were linear over the range of 0.5–500 ng/mL. The intra- and inter-day coefficient of variations and accuracies for α- and β-amanitin at four quality control concentrations were 3.1–14.6% and 92.5–115.0%, respectively. The present method was successfully applied to the toxicokinetic study of α- and β-amanitin after an oral administration of α- and β-amanitin at 1.5 mg/kg dose to male ICR mice.

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Abstract
Introduction
Experimental
Results and Discussion
Conclusions
References

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