Article(id=1218263594786013789, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218263587458568607, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2017-0213, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1488988800000, receivedDateStr=2017-03-09, revisedDate=1493136000000, revisedDateStr=2017-04-26, acceptedDate=null, acceptedDateStr=null, onlineDate=1768386275239, onlineDateStr=2026-01-14, pubDate=1507737600000, pubDateStr=2017-10-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1768386275239, onlineIssueDateStr=2026-01-14, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1768386275239, creator=13701087609, updateTime=1768386275239, updator=13701087609, issue=Issue{id=1218263587458568607, tenantId=1146029695717560320, journalId=1189982191388893191, year='2017', volume='52', issue='10', pageStart='1485', pageEnd='1635', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1768386273493, creator=13701087609, updateTime=1768386692631, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218265345501086635, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218263587458568607, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218265345501086636, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218263587458568607, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1587, endPage=1591, ext={EN=ArticleExt(id=1218263595205444218, articleId=1218263594786013789, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Determination of ibuprofen enantiomers in human plasma by LC-MS/MS in pharmacokinetics study, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=ORIGINAL ARTICLES, runingTitle=null, highlight=null, articleAbstract=

The study aims to establish an LC-MS/MS method for the determination of S-(+)-ibuprofen (S-IBP) and R-(-)-ibuprofen (R-IBP), which may be used subsequently to investigate the pharmacokinetics of ibuprofen enantiomers in healthy Chinese volunteers. Naproxen was used as an internal standard. The separation was achieved on a Chiralpak AD-3R column (4.6 mm×150 mm, 3.0 μm) with a mobile phase consisting of acetonitrile/0.01% formic acid aqueous solution (40:60) at a flow rate of 750 μL·min-1 within 23.0 min. Naproxen and the internal standard were measured by a triple-quadrupole mass spectrometer in negative electron electronic spray ion (ESI) mode using multiple reaction monitoring (MRM). The extracted ions monitored following MRM transitions were m/z 205.1→161.0 for ibuprofen enantiomers and m/z 229.1→185.0 for the internal standard naproxen. Plasma samples were pretreated through methanol precipitation. The calibration curve of S-IBP and R-IBP in human plasma was linear over the concentration rang of (0.05-30.00) μg·mL-1. The lower limit of quantitation was 0.05 μg·mL-1. The intra-and inter-run precisions of S-IBP at three quality control levels were within 2.2%-4.2%, the relative deviation of the assay was within -12.0%-13.0%. The intra-and inter-run precisions of R-IBP at three quality control levels were within 2.0%-8.2%, the relative deviation of the assay was within -11.5%-10.6%. The plasma samples were stable at room temperature (25℃) for 6 h, at -30℃ for 47 days and during three freeze-thaw cycles. The method was proved to be convenient, accurate and sensitive, and suitable for the pharmacokinetics study of ibuprofen enantiomers in healthy Chinese volunteers after a single oral dose of 300 mg ibuprofen extended-release capsule.

, correspAuthors=Quan-ying ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2017 Acta Pharmaceutica Sinica. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Ming HUANG, Quan-ying ZHANG, Shun-lin ZONG), CN=ArticleExt(id=1218263595813618344, articleId=1218263594786013789, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=LC-MS/MS法测定人血浆中布洛芬对映体浓度及其药动学研究, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=

采用LC-MS/MS法测定人血浆中S-(+)-布洛芬(S-IBP)和R-(-)-布洛芬(R-IBP)的浓度,并应用于健康受试者体内药物动力学研究。以萘普生为内标,采用Daicel公司Chiralpak AD-3R(4.6 mm×150 mm,3.0 μm)色谱柱,流动相为乙腈-0.01%甲酸水溶液(40:60),流速为750 μL·min-1,每个样品的分析时间为23.0 min,样品经电喷雾离子源负离子化后,通过三重四极杆串联质谱仪,在多反应监测模式下测定S-IBP和R-IBP(m/z 205.1→161.0)和内标萘普生(m/z 229.1→185.0)的浓度。血浆样品前处理采用甲醇沉淀蛋白。S-IBP和R-IBP的血浆浓度在0.05~30.00 μg·mL-1内线性良好,定量下限为0.05 μg·mL-1S-IBP批内、批间精密度(RSD)均在2.2%~4.2%以内,相对偏差(RE)在-12.0%~13.0%以内。R-IBP批内、批间精密度(RSD)均在2.0%~8.2%以内,相对偏差(RE)在-11.5%~10.6%以内。S-IBP和R-IBP血浆样品室温(25℃)放置6 h,反复冻融(-30℃)3次及冰冻(-30℃)保存47天的情况下均稳定。该分析方法简便、特异性高、灵敏度高,可用于受试者空腹口服布洛芬缓释胶囊300 mg后血浆样品中布洛芬对映体S-IBP和R-IBP的药动学研究。

, correspAuthors=张全英, authorNote=null, correspAuthorsNote=
* 张全英, Tel:86-512-67783687, E-mail:
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J Chromatogr B, 2015, 992:67-75., articleTitle=null, refAbstract=null), Reference(id=1218968466523083281, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218263594786013789, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[10], rfOrder=9, authorNames=null, journalName=null, refType=null, unstructuredReference=Zhao XH, Xia YY, Huang YR, et al. Validation of a LC-MS/MS method for quantification of ibuprofen enantiomers in Beagle dog plasma[J]. 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LC-MS/MS Chromatograms of S-IBP (S-(+)-ibuprofen) and R-IBP (R-(-)-ibuprofen). A: Standard solution of S-IBP (1.500 μg·mL-1); B: Standard solution of R-IBP (1.500 μg·mL-1); C: Standard solution of naproxen (1.250 μg·mL-1); D: Blank plasma; E: Spiked plasma sample obtained by the addition of 10 μL standard solution of S-IBP and R-IBP (1.000 μg·mL-1) to 200 μL blank plasma; F: Spiked plasma sample obtained by the addition of 10 μL standard solution of S-IBP and R-IBP (30.00 μg·mL-1) to 200 μL blank plasma; G: Plasma obtained from a volunteer at 2.0 h after orally administration ibuprofen extended-release capsule

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Mean plasma concentration-time curves of ibuprofen enantiomers after a single oral dose of 300 mg ibuprofen extended-release capsule in 12 healthy male volunteers. n = 12, $\overline{x}±s$

, figureFileSmall=G4P42k7exsM+8R+oKMnDtg==, figureFileBig=8b8h9rnouel5qyLMnwamKg==, tableContent=null), ArticleFig(id=1218968464962802012, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218263594786013789, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
Parameter300 mg300 mg (Literature[3])
Racemic IBPS-IBPR-IBPRacemic IBPS-IBPR-IBP
AUC0-24 h /μg·h·mL-1104.3 ± 21.363.60 ± 12.2040.73 ± 13.05111.26 ± 13.9066.39 ± 11.2144.89 ± 5.85
AUC0- /μg·h·mL-1105.3 ± 21.264.14 ± 12.2041.04 ± 12.99NANANA
Cmax /μg·mL-114.62 ± 3.498.239 ± 1.5937.042 ± 2.27413.94 ± 2.238.15 ± 1.585.98 ± 1.04
tmax /h5.33 ± 1.075.67 ± 0.894.58 ± 0.675.25 ± 1.075.25 ± 1.074.44 ± 0.32
t1/2 /h2.90 ± 0.862.75 ± 0.612.7 8 ± 1.623.45 ± 2.113.97 ± 2.113.34 ± 0.84
CL/F /L·h-12.959 ± 0.6072.435 ± 0.5614.015 ± 1.2963.00 ± 0.422.65 ± 0.523.72 ± 0.82
), ArticleFig(id=1218968465101214055, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1218263594786013789, language=CN, label=Table 1, caption=

Main pharmacokinetic parameters of ibuprofen (IBP) enantiomers after a single oral dose of 300 mg IBP extended-release capsule. n = 12, $\overline{x}±s$. NA: Not applicable

, figureFileSmall=null, figureFileBig=null, tableContent=
Parameter300 mg300 mg (Literature[3])
Racemic IBPS-IBPR-IBPRacemic IBPS-IBPR-IBP
AUC0-24 h /μg·h·mL-1104.3 ± 21.363.60 ± 12.2040.73 ± 13.05111.26 ± 13.9066.39 ± 11.2144.89 ± 5.85
AUC0- /μg·h·mL-1105.3 ± 21.264.14 ± 12.2041.04 ± 12.99NANANA
Cmax /μg·mL-114.62 ± 3.498.239 ± 1.5937.042 ± 2.27413.94 ± 2.238.15 ± 1.585.98 ± 1.04
tmax /h5.33 ± 1.075.67 ± 0.894.58 ± 0.675.25 ± 1.075.25 ± 1.074.44 ± 0.32
t1/2 /h2.90 ± 0.862.75 ± 0.612.7 8 ± 1.623.45 ± 2.113.97 ± 2.113.34 ± 0.84
CL/F /L·h-12.959 ± 0.6072.435 ± 0.5614.015 ± 1.2963.00 ± 0.422.65 ± 0.523.72 ± 0.82
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LC-MS/MS法测定人血浆中布洛芬对映体浓度及其药动学研究
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黄明 , 张全英 * , 宗顺麟
药学学报 | 研究论文 2017,52(10): 1587-1591
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药学学报 | 研究论文 2017, 52(10): 1587-1591
LC-MS/MS法测定人血浆中布洛芬对映体浓度及其药动学研究
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黄明, 张全英* , 宗顺麟
作者信息
  • 苏州大学附属第二医院临床药理实验室, 江苏 苏州 215004

通讯作者:

* 张全英, Tel:86-512-67783687, E-mail:
Determination of ibuprofen enantiomers in human plasma by LC-MS/MS in pharmacokinetics study
Ming HUANG, Quan-ying ZHANG* , Shun-lin ZONG
Affiliations
  • Clinical Pharmacology Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
出版时间: 2017-10-12 doi: 10.16438/j.0513-4870.2017-0213
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采用LC-MS/MS法测定人血浆中S-(+)-布洛芬(S-IBP)和R-(-)-布洛芬(R-IBP)的浓度,并应用于健康受试者体内药物动力学研究。以萘普生为内标,采用Daicel公司Chiralpak AD-3R(4.6 mm×150 mm,3.0 μm)色谱柱,流动相为乙腈-0.01%甲酸水溶液(40:60),流速为750 μL·min-1,每个样品的分析时间为23.0 min,样品经电喷雾离子源负离子化后,通过三重四极杆串联质谱仪,在多反应监测模式下测定S-IBP和R-IBP(m/z 205.1→161.0)和内标萘普生(m/z 229.1→185.0)的浓度。血浆样品前处理采用甲醇沉淀蛋白。S-IBP和R-IBP的血浆浓度在0.05~30.00 μg·mL-1内线性良好,定量下限为0.05 μg·mL-1S-IBP批内、批间精密度(RSD)均在2.2%~4.2%以内,相对偏差(RE)在-12.0%~13.0%以内。R-IBP批内、批间精密度(RSD)均在2.0%~8.2%以内,相对偏差(RE)在-11.5%~10.6%以内。S-IBP和R-IBP血浆样品室温(25℃)放置6 h,反复冻融(-30℃)3次及冰冻(-30℃)保存47天的情况下均稳定。该分析方法简便、特异性高、灵敏度高,可用于受试者空腹口服布洛芬缓释胶囊300 mg后血浆样品中布洛芬对映体S-IBP和R-IBP的药动学研究。

布洛芬  /  手性对映体  /  高效液相-串联质谱  /  药动学

The study aims to establish an LC-MS/MS method for the determination of S-(+)-ibuprofen (S-IBP) and R-(-)-ibuprofen (R-IBP), which may be used subsequently to investigate the pharmacokinetics of ibuprofen enantiomers in healthy Chinese volunteers. Naproxen was used as an internal standard. The separation was achieved on a Chiralpak AD-3R column (4.6 mm×150 mm, 3.0 μm) with a mobile phase consisting of acetonitrile/0.01% formic acid aqueous solution (40:60) at a flow rate of 750 μL·min-1 within 23.0 min. Naproxen and the internal standard were measured by a triple-quadrupole mass spectrometer in negative electron electronic spray ion (ESI) mode using multiple reaction monitoring (MRM). The extracted ions monitored following MRM transitions were m/z 205.1→161.0 for ibuprofen enantiomers and m/z 229.1→185.0 for the internal standard naproxen. Plasma samples were pretreated through methanol precipitation. The calibration curve of S-IBP and R-IBP in human plasma was linear over the concentration rang of (0.05-30.00) μg·mL-1. The lower limit of quantitation was 0.05 μg·mL-1. The intra-and inter-run precisions of S-IBP at three quality control levels were within 2.2%-4.2%, the relative deviation of the assay was within -12.0%-13.0%. The intra-and inter-run precisions of R-IBP at three quality control levels were within 2.0%-8.2%, the relative deviation of the assay was within -11.5%-10.6%. The plasma samples were stable at room temperature (25℃) for 6 h, at -30℃ for 47 days and during three freeze-thaw cycles. The method was proved to be convenient, accurate and sensitive, and suitable for the pharmacokinetics study of ibuprofen enantiomers in healthy Chinese volunteers after a single oral dose of 300 mg ibuprofen extended-release capsule.

ibuprofen  /  chiral enantiomer  /  LC-MS/MS  /  pharmacokinetics
黄明, 张全英, 宗顺麟. LC-MS/MS法测定人血浆中布洛芬对映体浓度及其药动学研究. 药学学报, 2017 , 52 (10) : 1587 -1591 . DOI: 10.16438/j.0513-4870.2017-0213
Ming HUANG, Quan-ying ZHANG, Shun-lin ZONG. Determination of ibuprofen enantiomers in human plasma by LC-MS/MS in pharmacokinetics study[J]. Acta Pharmaceutica Sinica, 2017 , 52 (10) : 1587 -1591 . DOI: 10.16438/j.0513-4870.2017-0213
布洛芬(ibuprofen, IBP)为非甾体抗炎药, 主要通过抑制前列腺素或其他炎症介质合成而发挥抗炎、解热、镇痛作用。目前, 布洛芬主要以消旋体给药, 其左右旋体在体内的药理活性存在显著的差异, 其中右旋布洛芬(S-IBP)在抑制前列腺素生成上优于左旋布洛芬(R-IBP)。布洛芬以消旋体给药后, 部分左旋布洛芬可通过形成辅酶A硫脂单向地转化为右旋布洛芬[1, 2], 所以有必要研究布洛芬对映体各自的药动学参数。
目前, 国内外血浆中布洛芬对映体浓度的测定方法主要包括LC-UV法[3-6]和LC-MS/MS[7-10]。血浆样品前处理方法有: ① 液液萃取法[3, 4, 7-10]:样品经提取、吹干、复溶等步骤后测定, 操作繁琐。② 固相萃取法[5, 9]: SPE柱成本相对较高。③ 蛋白沉淀法[6]:此方法应用犬血浆样品测定。
本研究首次采用甲醇沉淀蛋白前处理方法, 使用液质联用仪测定人血浆中布洛芬对映体浓度, S-IBP和R-IBP定量下限均为0.05 μg·mL-1, 并将此方法应用于布洛芬缓释胶囊中国健康受试者人体药动学研究。
仪器  液质联用仪: API4000三重串联四极杆质谱仪, AB Sciex公司; Agilent1200液相色谱仪, Agilent公司; 数据处理系统为Analyst 1.4.2, AB Sciex公司。分析天平: XS 105DU型(Max2 = 41 g, d2 = 0.01 mg), Mettler Toledo公司。
对照品和试剂   S-IBP对照品(批号101203-201201, 中国食品药品检定研究院, 含量为99.9%)。R-IBP对照品(批号1175-070A2, TLC Pharmachem, 含量为99.6%)。萘普生对照品(批号100198-201205, 中国食品药品检定研究院, 含量为99.6%); 乙腈和甲醇(HPLC级, Merck KGaA); 甲酸(AR级, 上海凌峰化学试剂有限公司); 水(灭菌注射用水, 石家庄四药有限公司)。空白血浆来自健康志愿者。
试验药物  布洛芬缓释胶囊(中美天津史克制药有限公司生产、商品名芬必得®, 产品批号13030887, 含量99.3%, 规格300 mg/粒)。
色谱条件  色谱柱为Daicel公司Chiralpak AD-3R (4.6 mm × 150 mm, 3.0 μm), 保护柱为Chiralpak AD-3R (4.0 mm × 10 mm, 3.0 μm); 流动相为乙腈-0.01%甲酸水溶液(40:60);流速750 μL·min-1; 分析时间23.0 min, 0~8.0 min A通道(排废), 8.0~23.0 min B通道(质谱系统); 进样量20 μL; 柱温25 ℃。
质谱条件  电喷雾离子源(ESI), 负离子电离模式; 雾化气50 psi (1 psi ≈ 6.9 kPa); 加热辅助气50 psi, 离子源温度550 ℃; 采用多反应监测(MRM); S-IBP和R-IBP监测离子对均为m/z 205.1→161.0, 去簇电压(DP)为-60 V, 射入电压(EP)为-10 V, 碰撞能量(CE)为-11 V, 碰撞室的射出电压(CXP)为-6 V; 内标萘普生监测离子对为m/z 229.1→185.0, 去簇电压(DP)为-40 V, 射入电压(EP)为-10 V, 碰撞能量(CE)为-9 V, 碰撞室的射出电压(CXP)为-6 V。
储备液和工作液配制  S-IBP和R-IBP标准曲线储备液和工作液:称量S-IBP和R-IBP各10.00 mg于10 mL量瓶用甲醇定容, 混匀得1.000 mg·mL-1 S-IBP和R-IBP标准曲线储备液, 用甲醇稀释至浓度为1.000、3.000、10.00、30.00、100.0、300.0和600.0 μg·mL-1的标准曲线系列工作液。将1.000 mg·mL-1 S-IBP和R-IBP储备液, 用甲醇稀释至浓度为2.400、48.00和480.0 μg·mL-1的质控系列工作液。内标萘普生储备液及工作液:称取萘普生对照品10.00 mg于10 mL量瓶用甲醇定容, 混匀得1.000 mg·mL-1内标储备液, 并用甲醇稀释5.000 μg·mL-1内标萘普生工作液。
标准曲线和质控血浆样品制备和处理  取空白血浆200 μL置1.5 mL离心管中, 加入S-IBP和R-IBP标准曲线或质控工作液10 μL和内标萘普生工作液50 μL, 混匀后加入甲醇600 μL沉淀血浆蛋白, 涡旋1 min, 于23 755×g、4 ℃离心10 min。离心后取上清液400 μL置进样瓶中, 加入水相400 μL, 涡旋混匀后, 置于自动进样器中进样测定S-IBP和R-IBP浓度。
方法学验证
特异性实验  分别取S-IBP和R-IBP对照溶液、萘普生对照溶液、空白血浆按“标准曲线和质控血浆样品制备和处理”项方法处理样品; 空白血浆200 μL和S-IBP和R-IBP对照品溶液(均30.00 μg·mL-1) 10 μL混匀后按“标准曲线和质控血浆样品制备和处理”项方法操作样品; 受试者口服布洛芬缓释胶囊300 mg后2.0 h的血浆按“受试者血浆样品处理”项方法操作样品, 进样检测。
标准曲线和定量下限  取空白血浆200 μL, 分别加入S-IBP和R-IBP标准曲线系列工作液10 μL, 制备血浆中S-IBP和R-IBP浓度均为0.05000、0.1500、0.5000、1.500、5.000、15.00和30.00 μg·mL-1的标准曲线系列血浆样品, 按“标准曲线和质控血浆样品制备和处理”项方法处理, 进样检测, 以S-IBP或R-IBP浓度为横坐标, S-IBP或R-IBP峰面积与内标萘普生峰面积的比值为纵坐标, 权重系数为1/C2, 进行线性回归。
精密度与准确度  取空白血浆200 μL, 分别加入S-IBP和R-IBP质控系列工作液10 μL (2.400、48.00和480.0 μg·mL-1), 制备血浆中S-IBP和R-IBP浓度分别均为0.1200、2.400和24.00 μg·mL-1的质控系列血浆样品, 每个浓度6样品, 按“标准曲线和质控血浆样品制备和处理”项方法处理, 测定3批, 根据每批随行标准曲线, 计算样品的实测浓度, 用Excel软件中单因素方差分析计算S-IBP和R-IBP批间和批内精密度, 同时计算相对偏差。
提取回收率  按精密度与准确度实验方法制备含S-IBP和R-IBP分别为0.120 0、2.400和24.00 μg·mL-1的血浆样品, 每个浓度6个样品, 按“标准曲线和质控血浆样品制备和处理”项方法处理, 以其进样测定得到的峰面积除以空白血浆经蛋白沉淀后直接加入低、中、高S-IBP和R-IBP质控系列工作液及内标萘普生工作液后检测得到的峰面积, 计算血浆中S-IBP、R-IBP和内标萘普生的提取回收率。
基质效应  取6个不同来源的空白血浆200 μL至1.5 mL离心管中, 分别加入甲醇600 μL, 涡旋1 min, 4 ℃离心(23 755×g) 10 min, 取上清液700 μL作血浆基质; 另取纯化水200 μL至1.5 mL离心管中, 同法处理得到对照基质。分别取对照基质和血浆基质700 μL, 加入S-IBP和R-IBP质控系列工作液10 μL和内标萘普生工作液50 μL混匀, 吸取该溶液400 μL至进样瓶中, 加入水相400 μL, 混匀。上述样品每个浓度6份并按“色谱条件”和“质谱条件”项检测, 获得S-IBP、R-IBP和内标萘普生峰面积, 以每一浓度样品两种基质的峰面积比值计算基质效应。
受试者血浆样品处理  取受试者血浆样品200 μL置1.5 mL离心管中, 加入甲醇10 μL和内标萘普生工作液50 μL, 混匀后加入甲醇600 μL沉淀血浆蛋白, 涡旋1 min, 于23 755×g、4 ℃离心10 min。离心后取上清液400 μL置进样瓶中, 加入水相400 μL, 涡旋混匀后, 置于自动进样器中进样测定S-IBP和R-IBP浓度。
人体药动学研究方案  临床试验方案经苏州大学附属第二医院伦理委员会批准。12名男性健康受试者均签署知情同意书, 年龄在(23 ± 3) 岁, 试验开始两周前至试验期间未服用其他任何药物, 体重指数均在19~24内, 心电图正常, 肝、肾功能正常, 均符合受试者入选标准。12名受试者空腹口服布洛芬缓释胶囊(芬必得®, 300 mg/粒) 1粒, 250 mL温开水送服, 于服药前和服药后0.50、1.0、1.5、2.0、3.0、4.0、5.0、6.0、8.0、10、12、15和24 h由肘静脉取血4 mL。所有血液样品置肝素化采血管中, 离心(2 304×g, 4 ℃, 5 min), 分离上层血浆, 于-30 ℃冰箱中保存, 待测。
结果显示, S-IBP和R-IBP的保留时间分别为16.60和15.02 min, 内标萘普生的保留时间为11.75 min, 内源性物质不干扰S-IBP和R-IBP和内标萘普生的测定, 见图 1
S-IBP回归方程为ƒ = 0.526×C + 0.005 83 (r = 0.999 7)。R-IBP回归方程为ƒ = 0.501×C + 0.005 41 (r = 0.998 3)。结果表明, S-IBP和R-IBP在0.05~30.00 μg·mL-1内线性关系均较好, 定量下限LLOQ均为0.05 μg·mL-1
结果显示, S-IBP和R-IBP低、中、高三浓度质控样品批间和批内RSD均小于15%, RE均在± 15%范围内。
结果显示, 血浆中S-IBP低、中、高三个浓度的提取回收率分别为96.7% ± 4.6% (n = 6)、104.1% ± 1.9% (n = 6) 和103.3% ± 4.7% (n = 6);血浆中R-IBP低、中、高三个浓度的提取回收率分别为100.3% ± 4.4% (n = 6)、97.5% ± 2.6% (n = 6) 和99.7% ± 2.0% (n = 6);内标萘普生的提取回收率为101.3% ± 2.8% (n = 18)。
结果显示, 血浆中S-IBP低、中、高三个浓度的基质效应分别为100.8% ± 2.2% (n = 6)、100.6% ± 1.9% (n = 6) 和96.3% ± 3.5% (n = 6);血浆中S-IBP低、中、高三个浓度的基质效应分别为101.5% ± 4.1% (n = 6)、97.4% ± 3.6% (n = 6) 和96.7% ± 2.7% (n = 6);内标萘普生的基质效应为98.4% ± 3.4% (n = 18)。
结果显示, S-IBP和R-IBP血浆样品室温放置(25 ℃) 6 h、-30 ℃冰冻47天和反复冻融3次情况下均稳定; 待测样品自动进样器放置(4 ℃) 48 h, 血浆蛋白沉淀离心后上清液样品室温放置(25 ℃) 6 h。S-IBP和R-IBP储备液在室温放置24 h和在冷藏(2~8 ℃) 26天情况下稳定; 内标萘普生储备液在室温放置24 h和在冷藏(2~8 ℃) 26天情况下稳定。
12名受试者空腹口服布洛芬后S-IBP和R-IBP的平均血药浓度-时间曲线见图 2, 主要药动学参数见表 1
本研究建立的LC-MS/MS测定人血浆中布洛芬对映体浓度, 定量下限为0.05 μg·mL-1, 低于文献[3, 5-10]报道, Shi等[4]采用液液萃取法, 操作繁琐。本方法可满足布洛芬缓释胶囊的药动学研究大量样品测定。
手性拆分是药物分析的热点, 也是定量测定手性药物的前提。Xiang等[3]采用大赛璐多糖衍生物正相手性柱, Chiralcel OJ-H, 流动性为正己烷-异丙醇-三氟醋酸, 不适合LC-MS/MS。本文采用大赛璐多糖衍生物反相手性柱Chiralpak AD-3R, 硅胶表面涂敷有直链淀粉-三(3, 5-二甲苯基氨基甲酸酯), 与正相柱Chiralpak AD-H比较, 反相柱涂敷的手性聚合物与正相柱相同, 但是所用的硅胶不同。反相柱使用水/有机溶剂流动相, 适合分析水溶性样品(比如生物活性样品), 可应用于LC-MS/MS中。
本研究对色谱和质谱条件进行了优化考察, 初期尝试使用Daicel公司官网推荐的色谱条件:乙腈-pH 2.0甲酸水溶液(50/50), 结果显示: S-IBP和R-IBP仪器响应低, 考虑负离子监测模式下, 流动性pH低, 不利于负离子的形成, 故减小甲酸水溶液中甲酸的比例。最终选择乙腈-0.01%甲酸水溶液(40:60) 为流动相, S-IBP和R-IBP的响应较高且保留时间适中。
血浆样品沉淀蛋白, 离心后, 取上清液400 μL, 并加入水相400 μL, 是为了将进样样品中水的比例提高至近似流动相的比例, 防止发生二次化学平衡现象, 改善峰形。
12例受试者口服布洛芬缓释胶囊胶囊300 mg后, 血浆中S-IBP和R-IBP主要药动学参数AUC、Cmaxtmaxt1/2和CL/F与文献[3]基本一致。布洛芬消旋体、S-IBP和R-IBP之间除AUC、Cmax和CL/F外, 其他主要药动学参数均无统计学差异。S-IBP的AUC0-24h均数是布洛芬消旋体的61.0%, 是R-IBP的156.2%; S-IBP的Cmax均数是布洛芬消旋体的56.4%, 是R-IBP的Cmax的117.0%。R-IBP的清除较S-IBP快。
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2017年第52卷第10期
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doi: 10.16438/j.0513-4870.2017-0213
  • 接收时间:2017-03-09
  • 首发时间:2026-01-14
  • 出版时间:2017-10-12
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  • 收稿日期:2017-03-09
  • 修回日期:2017-04-26
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    苏州大学附属第二医院临床药理实验室, 江苏 苏州 215004

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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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