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LC-MS/MS法监测系统性红斑狼疮患者血浆中霉酚酸谷浓度
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作者 李喜平 余恒毅 +2 位作者 向东 刘东 贡雪芃 《中国药师》 CAS 2023年第10期67-73,共7页
目的运用高效液相色谱串联质谱建立测定系统性红斑狼疮(SLE)患者血浆中霉酚酸谷浓度的分析方法。方法采用多反应监测,正离子模式,电喷雾离子化,监测离子对为m/z 321.2→159.0(霉酚酸)和m/z 327.2→270.0(内标)。50μL血浆加入内标后,再... 目的运用高效液相色谱串联质谱建立测定系统性红斑狼疮(SLE)患者血浆中霉酚酸谷浓度的分析方法。方法采用多反应监测,正离子模式,电喷雾离子化,监测离子对为m/z 321.2→159.0(霉酚酸)和m/z 327.2→270.0(内标)。50μL血浆加入内标后,再经蛋白沉淀处理,采用色谱柱Welch XB-C_(18)(50 mm×2.1 mm,5μm)进行液相分离,流动相为2 mmol·L^(-1)醋酸铵溶液(0.1%甲酸)-乙腈(0.1%甲酸),梯度洗脱,流速为0.8 mL·min^(-1),分析时长为3.5 min,进样量为3μL。20例SLE患者规律口服吗替麦考酚酯分散片达稳态后,于下一次服药前30 min内取全血并分离血浆,处理后进样分析。结果霉酚酸在0.25~20μg·mL^(-1)范围内线性良好(r=0.9970),各质控水平准确度为87.5%~114.7%,日内和日间相对标准偏差为4.4%~14.7%,提取回收率为93.7%~110.2%。20例SLE患者霉酚酸谷浓度波动在285~5297 ng·mL^(-1)范围内,剂量标准化后患者谷浓度介于285.4~5297 ng·mL^(-1)·g^(-1),变异系数高达95.9%。结论本方法专属性强、灵敏度高、耗时短、前处理简单,可高效精准地监测系统性红斑狼疮患者血浆中霉酚酸谷浓度。 展开更多
关键词 霉酚酸 高效液相串联质谱法 治疗药物监测 系统性红斑狼疮
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2-Methoxyjuglone, a Promising Bioactive Compound for Pharmaceutical and Agricultural Purposes: A Review
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作者 heng-yi yu Lin LIU +2 位作者 Juan LI Dong LIU Han-li RUAN 《Current Medical Science》 SCIE CAS 2022年第5期905-912,共8页
2-Methoxyjuglone,a member of the 1,4-naphthoquinone family,was first obtained through semi-synthesis based on 2-hydroxyjuglone as the precursor in 1966.It has been isolated and identified from different plant species ... 2-Methoxyjuglone,a member of the 1,4-naphthoquinone family,was first obtained through semi-synthesis based on 2-hydroxyjuglone as the precursor in 1966.It has been isolated and identified from different plant species of the Juglandaceae,Sterculiaceae,and Proteaceae families.2-Methoxyjuglone has been demonstrated to possess a wide range of biological activities,including antitumor,antifungal,and antibacterial activities;in addition,it has been shown to poison fish and inhibit seed germination.These properties make 2-methoxyjuglone a promising bioactive compound for pharmaceutical and agricultural purposes.This review article provides an overview of the current research progress on 2-methoxyjuglone for the first time,with a primary focus on the plant sources,extraction,identification,synthesis,and biological activities associated with this compound for further development. 展开更多
关键词 2-methoxyjuglone BIOACTIVITIES plant sources synthesis REVIEW
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Diarylheptanoids from the root bark of Juglans cathayensis 被引量:5
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作者 Juan Li Jia-Xiang Sun +3 位作者 heng-yi yu Zu-yu Chen Xiao-Ya Zhao Han-Li Ruan 《Chinese Chemical Letters》 SCIE CAS CSCD 2013年第6期521-523,共3页
A new diarylheptanoid glucoside,(8R,9R)-17-methoxy-2-oxatricyclo[13.2.2.1^(3.7)]icosa-l(17),3(20),4,6, 15,18-hexaene-4,9,10-triol-9-O-β-D-glucopyranoside(1),namely jugcathayenoside,together with two known d... A new diarylheptanoid glucoside,(8R,9R)-17-methoxy-2-oxatricyclo[13.2.2.1^(3.7)]icosa-l(17),3(20),4,6, 15,18-hexaene-4,9,10-triol-9-O-β-D-glucopyranoside(1),namely jugcathayenoside,together with two known diarylheptanoids,(+)-galeon(2) and 4-hydroxy-17-methoxy-2-oxatricyclo[13.2.2.1^(3,7) ]icosa-1(17),3(20),4,6,15,18-hexaene-9-one(3),were isolated from the root bark of Juglans cathayensis. Their structures were elucidated on the basis of extensive spectroscopic data analysis. 展开更多
关键词 Juglans cathayensis Diarylheptanoid glucoside Jugcathayenoside
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