Article(id=1240372083130160023, tenantId=1146029695717560320, journalId=1205117023404326918, issueId=1240372078617096528, articleNumber=null, orderNo=null, doi=10.16155/j.0254-1793.2024.01.08, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=1705420800000, revisedDateStr=2024-01-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1773657349616, onlineDateStr=2026-03-16, pubDate=1706630400000, pubDateStr=2024-01-31, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773657349616, onlineIssueDateStr=2026-03-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773657349616, creator=13701087609, updateTime=1773657349616, updator=13701087609, issue=Issue{id=1240372078617096528, tenantId=1146029695717560320, journalId=1205117023404326918, year='2024', volume='44', issue='1', pageStart='1', pageEnd='184', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773657348540, creator=13701087609, updateTime=1773657513974, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1240372772564685717, tenantId=1146029695717560320, journalId=1205117023404326918, issueId=1240372078617096528, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1240372772564685718, tenantId=1146029695717560320, journalId=1205117023404326918, issueId=1240372078617096528, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=76, endPage=88, ext={EN=ArticleExt(id=1240372083499258791, articleId=1240372083130160023, tenantId=1146029695717560320, journalId=1205117023404326918, language=EN, title=Determination of abundance of dexamethasone related metabolic enzymes and transporter proteins in the placenta of Chinese pregnant women by LC-MS/MS method
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Objective: To establish an LC-MS/MS method for the determination of the abundance data of dexamethasone-related metabolic enzymes and transporters in the placenta of Chinese pregnant women.
Methods: A Shim-pack GISS-HP C18 (100 mm×2.1 mm, 1.9 μm) chromatographic column was used, and the mobile phases were consisted of 0.2% formic acid-water (phase A) and 0.2% formic acid-acetonitrile (phase B) with gradient elution at a flow rate of 0.2 mL·min-1. The post-column phase C consisted of 0.5% ethylene glycol-acetonitrile was added at a flow rate of 0.1 mL·min-1, and the ESI source positive ion MRM mode was used for quantitative analysis. The established method was investigated methodologically and the expression levels of 11β hydroxysteroid dehydrogenase 1(11β-HSD1), 11β hydroxysteroid dehydrogenase 2(11β-HSD2), cytochrome P450 3A4 enzyme (CYP3A4) and P-glycoprotein protein (P-gp) were quantitatively analyzed in the placenta of Chinese pregnant women in the third trimester.
Results: The established LC-MS/MS method had a linear range of 0.1-100 nmol·L-1(r >0.999). The precision and accuracy results met the requirements of the biological sample analysis method verification in Chinese Pharmacopoeia (RSD≤15%), and the stability results showed that the samples were stability. The protein abundance of 11β-HSD2, 11β-HSD1, CYP3A4 and P-gp were (84.46±59.97) pmol·g-1, (11.44±3.73) pmol·g-1, (8.83±2.78) pmol·g-1 and (7.94±4.10) pmol·g-1, respectively. Besides, the results of the study also showed that there was no significant difference in the distribution of related metabolic enzymes and transporters in different parts of the placenta. However, there was a significant difference in the abundance of P-gp in the placenta between Chinese people (7.94±4.10) pmol·g-1 and white people (4.41±2.46) pmol·g-1.
Conclusions: The LC-MS/MS method established in this study has high accuracy and sensitivity and is suitable for detecting the abundance values of dexamethasone-related metabolic enzymes and transporters in human placenta.
, correspAuthors=Tai-jun HANG, Lei ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, 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=Hui LI, Xuan GUO, Zhe HOU, Dong-yang LIU, Jing DONG, Tai-jun HANG, Lei ZHANG), CN=ArticleExt(id=1240372086229750771, articleId=1240372083130160023, tenantId=1146029695717560320, journalId=1205117023404326918, language=CN, title=LC-MS/MS法测定中国孕妇胎盘中地塞米松相关代谢酶和转运体蛋白丰度
*, columnId=1239184757708345914, journalTitle=药物分析杂志, columnName=代谢分析, runingTitle=null, highlight=null, articleAbstract=
目的: 建立LC-MS/MS方法测定中国孕妇胎盘中地塞米松相关代谢酶和转运体的丰度数据。
方法: 采用Shim-pack GISS-HP C18(100 mm×2.1 mm,1.9 μm)色谱柱,柱前由0.2%甲酸-水(A)和0.2%甲酸-乙腈(B)组成的流动相,以0.2 mL·min-1的流速进行梯度洗脱,柱后以0.1 mL·min-1的流速加入0.5%乙二醇-乙腈(流动相C),采用ESI源正离子MRM模式进行定量分析。对所建立的方法进行方法学考察并对中国孕妇孕晚期胎盘中11β羟基类固醇脱氢酶1(11β-HSD1)、11β羟基类固醇脱氢酶2(11β-HSD2)、细胞色素P450 3A4酶(CYP3A4)和P-糖蛋白(P-gp)蛋白表达量进行定量分析。
结果: 建立的LC-MS/MS分析测定方法的线性范围为0.1~100 nmol·L-1(r>0.999);精密度和准确度结果均符合《中华人民共和国药典》对于生物样品分析方法学验证的要求(RSD≤15%),稳定性结果显示样品稳定性良好。11β-HSD2、11β-HSD1、CYP3A4和P-gp的蛋白丰度分别为(84.46±59.97) pmol·g-1、(11.44±3.73) pmol·g-1、 (8.83±2.78) pmol·g-1和(7.94±4.10) pmol·g-1。同时研究结果显示相关代谢酶和转运体在胎盘不同部位的分布没有显著差异,但中国人胎盘P-gp的丰度(7.94±4.10) pmol·g-1和白人(4.41±2.46) pmol·g-1相比存在显著性差异。
结论: 本研究建立的LC-MS/MS方法准确度和灵敏度高,适用于检测人类胎盘中地塞米松相关代谢酶和转运体的丰度值。
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Specific results for LC-MS/MS determination of metabolic enzyme and transporter abundance, figureFileSmall=O8pRoNlU8+YgCBKRe8nmUw==, figureFileBig=A1WDpjHmYpk9AekEj8IMwQ==, tableContent=null), ArticleFig(id=1240376125612938164, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=图1, caption=
代谢酶和转运体丰度的LC-MS/MS测定专属性结果V.11β-HSD1 A.11β-HSD2
, figureFileSmall=O8pRoNlU8+YgCBKRe8nmUw==, figureFileBig=A1WDpjHmYpk9AekEj8IMwQ==, tableContent=null), ArticleFig(id=1240376125730378680, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Fig.2, caption=
Standard curves of LC-MS/MS determination of CYP3A4,11β-HSD1,11β-HSD2 and P-gp, figureFileSmall=K0F8LTW8O1WxzCcjl4xyXA==, figureFileBig=XvV+Bfi9B4aFFS6mNoh0Bw==, tableContent=null), ArticleFig(id=1240376125814264763, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=图2, caption=
CYP3A4、11β-HSD1、11β-HSD2和P-gp的LC-MS/MS测定标准曲线, figureFileSmall=K0F8LTW8O1WxzCcjl4xyXA==, figureFileBig=XvV+Bfi9B4aFFS6mNoh0Bw==, tableContent=null), ArticleFig(id=1240376125952676804, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Fig.3, caption=
Results of protein abundance of CYP3A4,11β-HSD1,11β-HSD2 and P-gp in the placenta of Chinese pregnant women in the third trimester, figureFileSmall=j6U0l8Va6mr5P2t6vSPnMQ==, figureFileBig=1GmnztIEAvzmh0ZY7RvaPg==, tableContent=null), ArticleFig(id=1240376126053340104, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=图3, caption=
中国孕妇孕晚期胎盘中CYP3A4、11β-HSD1、11β-HSD2和P-gp蛋白丰度结果(n=10), figureFileSmall=j6U0l8Va6mr5P2t6vSPnMQ==, figureFileBig=1GmnztIEAvzmh0ZY7RvaPg==, tableContent=null), ArticleFig(id=1240376126128837583, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Fig.4, caption=
P-gp protein abundance in whites at different gestational stages and Chinese in third trimester, figureFileSmall=ULKhlewq+BMDU077ccxSfw==, figureFileBig=j1tkKUu+GVskHhdiExiNqg==, tableContent=null), ArticleFig(id=1240376126208529368, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=图4, caption=
白人不同妊娠期P-gp蛋白丰度和中国人孕晚期P-gp蛋白丰度T1.孕早期(first trimester) T2.孕中期(second trimester) term.足月期(term)
, figureFileSmall=ULKhlewq+BMDU077ccxSfw==, figureFileBig=j1tkKUu+GVskHhdiExiNqg==, tableContent=null), ArticleFig(id=1240376126279832536, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.1, caption=
MRM detection conditions for each enzyme and transporter peptide
, figureFileSmall=null, figureFileBig=null, tableContent=
酶和转运体名称 (enzyme and transporter name) | 肽段 (peptide) | 母离子 (parent ion) m/z | 子离子 (daughter ion) m/z | 裂解电压 (collision energy)/V | 驻留时间 (dwell time)/ms |
|---|
| 11β-HSD1 | VIVTGASK | 387.80 | 562.35 | -15.0 | 9.0 |
| 11β-HSD1内标(11β-HSD1 internal standard) | VIVTGA*SK | 391.80 | 570.35 | -15.0 | 9.0 |
| 11β-HSD2 | ALLQLLR | 413.70 | 642.55 | -17.0 | 9.0 |
| 11β-HSD2内标(11β-HSD2 internal standard) | ALLQLL*R | 417.20 | 649.50 | -17.0 | 9.0 |
| CYP3A4 | LQEEIDAVLPNK | 684.90 | 1 127.20 | -24.0 | 9.0 |
| CYP3A4内标(CYP3A4 internal standard) | LQEEIDAVLP*NK | 688.05 | 1 133.70 | -24.0 | 9.0 |
| P-gp | FYDPLAGK | 455.75 | 763.10 | -18.0 | 9.0 |
| P-gp内标(P-gp internal standard) | FYDPLA*GK | 457.85 | 767.40 | -17.0 | 9.0 |
), ArticleFig(id=1240376126376301533, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表1, caption=
各酶和转运体肽段MRM检测条件
, figureFileSmall=null, figureFileBig=null, tableContent=
酶和转运体名称 (enzyme and transporter name) | 肽段 (peptide) | 母离子 (parent ion) m/z | 子离子 (daughter ion) m/z | 裂解电压 (collision energy)/V | 驻留时间 (dwell time)/ms |
|---|
| 11β-HSD1 | VIVTGASK | 387.80 | 562.35 | -15.0 | 9.0 |
| 11β-HSD1内标(11β-HSD1 internal standard) | VIVTGA*SK | 391.80 | 570.35 | -15.0 | 9.0 |
| 11β-HSD2 | ALLQLLR | 413.70 | 642.55 | -17.0 | 9.0 |
| 11β-HSD2内标(11β-HSD2 internal standard) | ALLQLL*R | 417.20 | 649.50 | -17.0 | 9.0 |
| CYP3A4 | LQEEIDAVLPNK | 684.90 | 1 127.20 | -24.0 | 9.0 |
| CYP3A4内标(CYP3A4 internal standard) | LQEEIDAVLP*NK | 688.05 | 1 133.70 | -24.0 | 9.0 |
| P-gp | FYDPLAGK | 455.75 | 763.10 | -18.0 | 9.0 |
| P-gp内标(P-gp internal standard) | FYDPLA*GK | 457.85 | 767.40 | -17.0 | 9.0 |
), ArticleFig(id=1240376126523102179, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.2, caption=
Gradient elution conditions
, figureFileSmall=null, figureFileBig=null, tableContent=
时间 (time)/min | 流动相比例(mobile phase ratio)/% |
|---|
流动相A (mobile phase A) | 流动相B (mobile phase B) |
|---|
| 0 | 98 | 2 |
| 0.2 | 82 | 18 |
| 4 | 78 | 22 |
| 5 | 45 | 55 |
| 6.4 | 5 | 95 |
| 7.4 | 5 | 95 |
| 7.5 | 98 | 2 |
), ArticleFig(id=1240376126606988264, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表2, caption=
梯度洗脱条件
, figureFileSmall=null, figureFileBig=null, tableContent=
时间 (time)/min | 流动相比例(mobile phase ratio)/% |
|---|
流动相A (mobile phase A) | 流动相B (mobile phase B) |
|---|
| 0 | 98 | 2 |
| 0.2 | 82 | 18 |
| 4 | 78 | 22 |
| 5 | 45 | 55 |
| 6.4 | 5 | 95 |
| 7.4 | 5 | 95 |
| 7.5 | 98 | 2 |
), ArticleFig(id=1240376126695068652, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.3, caption=
Peptide standard solution and its internal standard solution information
, figureFileSmall=null, figureFileBig=null, tableContent=
肽段标准品及其内标 (peptide standards and their internal standards) | 批号 (lot number) | 纯度 (purity)/% | 公司 (company) |
|---|
| CYP3A4 | GP011227-11-0904 | 98 | 北京锐则成科技有限公司(Beijing Ruizecheng Technology Co., Ltd) |
CYP3A4内标 (CYP3A4 internal standard) | GP011227-32 | 98 | 北京锐则成科技有限公司(Beijing Ruizecheng Technology Co., Ltd) |
| 11β-HSD1 | PO2101305 | 98 | 上海科肽生物科技有限公司(Shanghai Kepeptide Biotechnology Co., Ltd) |
11β-HSD1内标 (11β-HSD1 internal standard) | PO2101306 | 98 | 上海科肽生物科技有限公司(Shanghai Kepeptide Biotechnology Co., Ltd) |
| 11β-HSD2 | PO2101303 | 98 | 上海科肽生物科技有限公司(Shanghai Kepeptide Biotechnology Co., Ltd) |
11β-HSD2内标 (11β-HSD2 internal standard) | PO2101304 | 98 | 上海科肽生物科技有限公司(Shanghai Kepeptide Biotechnology Co., Ltd) |
| P-gp | GP011227-13-0904 | 98 | 北京锐则成科技有限公司(Beijing Ruizecheng Technology Co., Ltd) |
| P-gp内标(P-gp internal standard) | GP011227-34 | 98 | 北京锐则成科技有限公司(Beijing Ruizecheng Technology Co., Ltd) |
), ArticleFig(id=1240376126795731950, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表3, caption=
肽段标准品溶液及其内标溶液信息
, figureFileSmall=null, figureFileBig=null, tableContent=
肽段标准品及其内标 (peptide standards and their internal standards) | 批号 (lot number) | 纯度 (purity)/% | 公司 (company) |
|---|
| CYP3A4 | GP011227-11-0904 | 98 | 北京锐则成科技有限公司(Beijing Ruizecheng Technology Co., Ltd) |
CYP3A4内标 (CYP3A4 internal standard) | GP011227-32 | 98 | 北京锐则成科技有限公司(Beijing Ruizecheng Technology Co., Ltd) |
| 11β-HSD1 | PO2101305 | 98 | 上海科肽生物科技有限公司(Shanghai Kepeptide Biotechnology Co., Ltd) |
11β-HSD1内标 (11β-HSD1 internal standard) | PO2101306 | 98 | 上海科肽生物科技有限公司(Shanghai Kepeptide Biotechnology Co., Ltd) |
| 11β-HSD2 | PO2101303 | 98 | 上海科肽生物科技有限公司(Shanghai Kepeptide Biotechnology Co., Ltd) |
11β-HSD2内标 (11β-HSD2 internal standard) | PO2101304 | 98 | 上海科肽生物科技有限公司(Shanghai Kepeptide Biotechnology Co., Ltd) |
| P-gp | GP011227-13-0904 | 98 | 北京锐则成科技有限公司(Beijing Ruizecheng Technology Co., Ltd) |
| P-gp内标(P-gp internal standard) | GP011227-34 | 98 | 北京锐则成科技有限公司(Beijing Ruizecheng Technology Co., Ltd) |
), ArticleFig(id=1240376126875423732, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.4, caption=
Preparation of peptide standard solution and its internal standard solution
, figureFileSmall=null, figureFileBig=null, tableContent=
肽段标准品及其内标 (peptide standards and their internal standards) | 相对分子质量 (relative molecular mass) | 质量 (quality)/mg | 溶剂体积 (solvent volume)/μL | 浓度 (concentration)/(mmol·L-1) |
|---|
| CYP3A4 | 1 368.53 | 3.000 | 429.66 | 5.00 |
| CYP3A4内标(CYP3A4 internal standard) | 1 374.53 | 2.510 | 358.05 | 5.00 |
| 11β-HSD1 | 773.92 | 1.603 | 1 036.00 | 2.00 |
| 11β-HSD1内标(11β-HSD1 internal standard) | 781.92 | 1.662 | 1 063.00 | 2.00 |
| 11β-HSD2 | 826.02 | 1.701 | 1 030.00 | 2.00 |
| 11β-HSD2内标(11β-HSD2 internal standard) | 833.02 | 1.760 | 1 056.00 | 2.00 |
| P-gp | 910.02 | 3.180 | 685.64 | 5.00 |
| P-gp内标(P-gp internal standard) | 914.02 | 3.000 | 652.97 | 5.00 |
), ArticleFig(id=1240376126980281336, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表4, caption=
肽段标准品溶液及其内标溶液制备
, figureFileSmall=null, figureFileBig=null, tableContent=
肽段标准品及其内标 (peptide standards and their internal standards) | 相对分子质量 (relative molecular mass) | 质量 (quality)/mg | 溶剂体积 (solvent volume)/μL | 浓度 (concentration)/(mmol·L-1) |
|---|
| CYP3A4 | 1 368.53 | 3.000 | 429.66 | 5.00 |
| CYP3A4内标(CYP3A4 internal standard) | 1 374.53 | 2.510 | 358.05 | 5.00 |
| 11β-HSD1 | 773.92 | 1.603 | 1 036.00 | 2.00 |
| 11β-HSD1内标(11β-HSD1 internal standard) | 781.92 | 1.662 | 1 063.00 | 2.00 |
| 11β-HSD2 | 826.02 | 1.701 | 1 030.00 | 2.00 |
| 11β-HSD2内标(11β-HSD2 internal standard) | 833.02 | 1.760 | 1 056.00 | 2.00 |
| P-gp | 910.02 | 3.180 | 685.64 | 5.00 |
| P-gp内标(P-gp internal standard) | 914.02 | 3.000 | 652.97 | 5.00 |
), ArticleFig(id=1240376127085138938, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.5, caption=
Preparation of mixed standard curve solutions
, figureFileSmall=null, figureFileBig=null, tableContent=
混合标准曲线溶液代号 (mixed standard curve solution code) | 溶质 (solute) | 溶质体积 (solute volume)/μL | 溶剂体积 (solvent volume)/μL | 终浓度 (final concentration)/(nmol·L-1) |
|---|
| C9 | 混合标准品工作液(mixed standard working solution) | 10 | 990 | 100 |
| C8 | C9 | 300 | 300 | 50 |
| C7 | C9 | 300 | 700 | 30 |
| C6 | C7 | 300 | 600 | 10 |
| C5 | C6 | 300 | 700 | 3 |
| C4 | C5 | 300 | 600 | 1 |
| C3 | C4 | 300 | 300 | 0.5 |
| C2 | C3 | 120 | 180 | 0.2 |
| C1 | C2 | 100 | 100 | 0.1 |
), ArticleFig(id=1240376127148053502, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表5, caption=
混合标准曲线溶液制备
, figureFileSmall=null, figureFileBig=null, tableContent=
混合标准曲线溶液代号 (mixed standard curve solution code) | 溶质 (solute) | 溶质体积 (solute volume)/μL | 溶剂体积 (solvent volume)/μL | 终浓度 (final concentration)/(nmol·L-1) |
|---|
| C9 | 混合标准品工作液(mixed standard working solution) | 10 | 990 | 100 |
| C8 | C9 | 300 | 300 | 50 |
| C7 | C9 | 300 | 700 | 30 |
| C6 | C7 | 300 | 600 | 10 |
| C5 | C6 | 300 | 700 | 3 |
| C4 | C5 | 300 | 600 | 1 |
| C3 | C4 | 300 | 300 | 0.5 |
| C2 | C3 | 120 | 180 | 0.2 |
| C1 | C2 | 100 | 100 | 0.1 |
), ArticleFig(id=1240376127223549954, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.6, caption=
Preparation of mixed quality control solution
, figureFileSmall=null, figureFileBig=null, tableContent=
混合质控溶液 (mixed quality control solution) | 溶质 (solute) | 溶质体积 (solute volume)/μL | 溶剂体积 (solvent volume)/μL | 终浓度 (final concentration)/(nmol·L-1) |
|---|
| 高浓度(high concentration) | 混合质控工作液(mixed quality control working fluid) | 8 | 992 | 80 |
| 中浓度(medium concentration) | 混合高浓度质控液(mixed high concentration quality control solution) | 100 | 900 | 8 |
| 低浓度(low concentration) | 混合中浓度质控液(mixed medium concentration quality control solution) | 30 | 770 | 0.3 |
), ArticleFig(id=1240376127340990470, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表6, caption=
混合质控溶液制备
, figureFileSmall=null, figureFileBig=null, tableContent=
混合质控溶液 (mixed quality control solution) | 溶质 (solute) | 溶质体积 (solute volume)/μL | 溶剂体积 (solvent volume)/μL | 终浓度 (final concentration)/(nmol·L-1) |
|---|
| 高浓度(high concentration) | 混合质控工作液(mixed quality control working fluid) | 8 | 992 | 80 |
| 中浓度(medium concentration) | 混合高浓度质控液(mixed high concentration quality control solution) | 100 | 900 | 8 |
| 低浓度(low concentration) | 混合中浓度质控液(mixed medium concentration quality control solution) | 30 | 770 | 0.3 |
), ArticleFig(id=1240376127571677191, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.7, caption=
Target peptide inter-day accuracy and precision results
, figureFileSmall=null, figureFileBig=null, tableContent=
蛋白质 (protein) | 准确度(accuracy)/% | 精密度(precision)/% |
|---|
混合低浓度质控溶液 (mixed low concentration quality control solution) | 混合中浓度质控溶液 (mixed medium concentration quality control solution) | 混合高浓度质控溶液 (mixed high concentration quality control solution) | 混合低浓度质控溶液 (mixed low concentration quality control solution) | 混合中浓度质控溶液 (mixed medium concentration quality control solution) | 混合高浓度质控溶液 (mixed high concentration quality control solution) |
|---|
| CYP3A4 | 99.32±5.80 | 94.44±2.80 | 105.51±4.04 | 10.66±1.45 | 3.46±1.37 | 2.64±1.11 |
| P-gp | 100.67±4.86 | 94.35±1.74 | 100.36±4.50 | 7.66±3.47 | 2.95±1.12 | 2.84±1.27 |
| 11β-HSD1 | 103.59±3.00 | 99.80±3.37 | 100.55±3.52 | 11.39±3.36 | 6.03±6.39 | 1.93±0.16 |
| 11β-HSD2 | 93.56±7.57 | 91.04±1.25 | 102.14±1.39 | 5.64±0.92 | 1.51±0.75 | 2.22±0.31 |
), ArticleFig(id=1240376127680729100, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表7, caption=
目标肽段日间准确度和精密度结果
, figureFileSmall=null, figureFileBig=null, tableContent=
蛋白质 (protein) | 准确度(accuracy)/% | 精密度(precision)/% |
|---|
混合低浓度质控溶液 (mixed low concentration quality control solution) | 混合中浓度质控溶液 (mixed medium concentration quality control solution) | 混合高浓度质控溶液 (mixed high concentration quality control solution) | 混合低浓度质控溶液 (mixed low concentration quality control solution) | 混合中浓度质控溶液 (mixed medium concentration quality control solution) | 混合高浓度质控溶液 (mixed high concentration quality control solution) |
|---|
| CYP3A4 | 99.32±5.80 | 94.44±2.80 | 105.51±4.04 | 10.66±1.45 | 3.46±1.37 | 2.64±1.11 |
| P-gp | 100.67±4.86 | 94.35±1.74 | 100.36±4.50 | 7.66±3.47 | 2.95±1.12 | 2.84±1.27 |
| 11β-HSD1 | 103.59±3.00 | 99.80±3.37 | 100.55±3.52 | 11.39±3.36 | 6.03±6.39 | 1.93±0.16 |
| 11β-HSD2 | 93.56±7.57 | 91.04±1.25 | 102.14±1.39 | 5.64±0.92 | 1.51±0.75 | 2.22±0.31 |
), ArticleFig(id=1240376127781392398, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.8, caption=
Short-and long-term stability results
, figureFileSmall=null, figureFileBig=null, tableContent=
蛋白质 (protein) | 短期稳定性(short-term stability)/% | 长期稳定性(long term stability)/% |
|---|
混合低浓度质控溶液 (mixed low concentration quality control solution) | 混合中浓度质控溶液 (mixed medium concentration quality control solution) | 混合高浓度质控溶液 (mixed high concentration quality control solution) | 混合低浓度质控溶液 (mixed low concentration quality control solution) | 混合中浓度质控溶液 (mixed medium concentration quality control solution) | 混合高浓度质控溶液 (mixed high concentration quality control solution) |
|---|
| CYP3A4 | 87.07±3.83 | 106.41±4.84 | 106.59±7.12 | 88.05±4.66 | 107.22±5.12 | 85.43±4.73 |
| P-gp | 107.18±10.69 | 99.65±2.57 | 98.87±1.27 | 113.29±19.90 | 100.61±4.24 | 99.54±0.58 |
| 11β-HSD1 | 98.17±2.02 | 102.25±1.30 | 101.01±0.68 | 101.06±2.81 | 101.75±1.47 | 100.76±0.79 |
| 11β-HSD2 | 102.68±14.20 | 102.90±2.29 | 102.97±0.85 | 93.56±8.46 | 102.69±0.25 | 98.46±0.64 |
), ArticleFig(id=1240376127856889871, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表8, caption=
短期和长期稳定性结果
, figureFileSmall=null, figureFileBig=null, tableContent=
蛋白质 (protein) | 短期稳定性(short-term stability)/% | 长期稳定性(long term stability)/% |
|---|
混合低浓度质控溶液 (mixed low concentration quality control solution) | 混合中浓度质控溶液 (mixed medium concentration quality control solution) | 混合高浓度质控溶液 (mixed high concentration quality control solution) | 混合低浓度质控溶液 (mixed low concentration quality control solution) | 混合中浓度质控溶液 (mixed medium concentration quality control solution) | 混合高浓度质控溶液 (mixed high concentration quality control solution) |
|---|
| CYP3A4 | 87.07±3.83 | 106.41±4.84 | 106.59±7.12 | 88.05±4.66 | 107.22±5.12 | 85.43±4.73 |
| P-gp | 107.18±10.69 | 99.65±2.57 | 98.87±1.27 | 113.29±19.90 | 100.61±4.24 | 99.54±0.58 |
| 11β-HSD1 | 98.17±2.02 | 102.25±1.30 | 101.01±0.68 | 101.06±2.81 | 101.75±1.47 | 100.76±0.79 |
| 11β-HSD2 | 102.68±14.20 | 102.90±2.29 | 102.97±0.85 | 93.56±8.46 | 102.69±0.25 | 98.46±0.64 |
), ArticleFig(id=1240376127940775953, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.9, caption=
Freeze-thaw stability results
, figureFileSmall=null, figureFileBig=null, tableContent=
蛋白质 (protein) | 冻融稳定性(freeze-thaw stability)/% |
|---|
混合低浓度质控溶液 (mixed low concentration quality control solution) | 混合中浓度质控溶液 (mixed medium concentration quality control solution) | 混合高浓度质控溶液 (mixed high concentration quality control solution) |
|---|
| CYP3A4 | 102.74±1.56 | 113.18±4.91 | 85.43±3.72 |
| P-gp | 112.52±11.77 | 101.83±1.99 | 99.45±0.91 |
| 11β-HSD1 | 99.28±4.97 | 100.41±0.80 | 101.23±1.38 |
| 11β-HSD2 | 96.27±9.47 | 101.17±0.31 | 97.19±1.40 |
), ArticleFig(id=1240376128041439254, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表9, caption=
冻融稳定性结果
, figureFileSmall=null, figureFileBig=null, tableContent=
蛋白质 (protein) | 冻融稳定性(freeze-thaw stability)/% |
|---|
混合低浓度质控溶液 (mixed low concentration quality control solution) | 混合中浓度质控溶液 (mixed medium concentration quality control solution) | 混合高浓度质控溶液 (mixed high concentration quality control solution) |
|---|
| CYP3A4 | 102.74±1.56 | 113.18±4.91 | 85.43±3.72 |
| P-gp | 112.52±11.77 | 101.83±1.99 | 99.45±0.91 |
| 11β-HSD1 | 99.28±4.97 | 100.41±0.80 | 101.23±1.38 |
| 11β-HSD2 | 96.27±9.47 | 101.17±0.31 | 97.19±1.40 |
), ArticleFig(id=1240376128175656986, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.10, caption=
Analysis data of P-gp,CYP3A4,11β-HSD1 and 11β-HSD2 in the placenta of Chinese pregnant women in the third trimester
, figureFileSmall=null, figureFileBig=null, tableContent=
酶和转运体 (enzymes and transporters) | 中位数[25%,75%] (median[Q1,Q3])/(pmol·g-1) | 平均值±标准差 (mean±SD)/(pmol·g-1) | RSD/% | 范围 (range)/(pmol·g-1) | 样本数 (number of samples) |
|---|
| CYP3A4 | 8.91[7.17,10.66] | 8.83±2.78 | 31.5 | 1.12~14.90 | 10.00 |
| 11β-HSD1 | 11.41[8.41,13.46] | 11.44±3.73 | 32.6 | 5.57~20.48 | 10.00 |
| P-gp | 7.32[4.88,9.74] | 7.94±4.10 | 51.7 | 3.03~22.79 | 12.00 |
| 11β-HSD2 | 67.41[47.01,101.66] | 84.46±59.97 | 71.0 | 17.51~326.41 | 12.00 |
), ArticleFig(id=1240376128263737370, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表10, caption=
中国孕妇孕晚期胎盘中P-gp、CYP3A4、11β-HSD1和11β-HSD2分析数据
, figureFileSmall=null, figureFileBig=null, tableContent=
酶和转运体 (enzymes and transporters) | 中位数[25%,75%] (median[Q1,Q3])/(pmol·g-1) | 平均值±标准差 (mean±SD)/(pmol·g-1) | RSD/% | 范围 (range)/(pmol·g-1) | 样本数 (number of samples) |
|---|
| CYP3A4 | 8.91[7.17,10.66] | 8.83±2.78 | 31.5 | 1.12~14.90 | 10.00 |
| 11β-HSD1 | 11.41[8.41,13.46] | 11.44±3.73 | 32.6 | 5.57~20.48 | 10.00 |
| P-gp | 7.32[4.88,9.74] | 7.94±4.10 | 51.7 | 3.03~22.79 | 12.00 |
| 11β-HSD2 | 67.41[47.01,101.66] | 84.46±59.97 | 71.0 | 17.51~326.41 | 12.00 |
), ArticleFig(id=1240376128368594973, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.11, caption=
Post hoc multiple comparison results
, figureFileSmall=null, figureFileBig=null, tableContent=
蛋白种类 (protein type) | 因变量 (dependent variable) | 蛋白(I) [protein(I)] | 蛋白(J) [protein(J)] | 标准误差 (standard error) | 显著性 (significance) | 95%置信区间 (95% confidence interval) |
|---|
| [下限(lower),上限(upper)] |
|---|
| P-gp | DVLG | Tukey HSD | A | B | 0.088 76 | 0.801 | [-0.161 3,0.274 3] |
| | | | C | 0.088 76 | 0.649 | [-0.138 5,0.297 0] |
| | | B | A | 0.088 76 | 0.801 | [-0.274 3,0.161 3] |
| | | | C | 0.088 76 | 0.965 | [-0.195 1,0.240 5] |
| | | C | A | 0.088 76 | 0.649 | [-0.297 0,0.138 5] |
| | | | B | 0.088 76 | 0.965 | [-0.240 5,0.195 1] |
| | LSD | A | B | 0.088 76 | 0.529 | [-0.124 0,0.237 1] |
| | | | C | 0.088 76 | 0.378 | [-0.101 3,0.259 8] |
| | | B | A | 0.088 76 | 0.529 | [-0.237 1,0.124 0] |
| | | | C | 0.088 76 | 0.800 | [-0.157 9,0.203 3] |
| | | C | A | 0.088 76 | 0.378 | [-0.259 8,0.101 3] |
| | | | B | 0.088 76 | 0.800 | [-0.203 3,0.157 9] |
| | Bonferroni | A | B | 0.088 76 | 1.000 | [-0.167 3,0.280 4] |
| | | | C | 0.088 76 | 1.000 | [-0.144 6,0.303 1] |
| | | B | A | 0.088 76 | 1.000 | [-0.280 4,0.167 3] |
| | | | C | 0.088 76 | 1.000 | [-0.201 2,0.246 6] |
| | | C | A | 0.088 76 | 1.000 | [-0.303 1,0.144 6] |
| | | | B | 0.088 76 | 1.000 | [-0.246 6,0.201 2] |
| CYP3A4 | DV | Tukey HSD | A | B | 1.218 243 | 0.958 | [-2.678 9,3.362 1] |
| | | | C | 1.218 243 | 0.232 | [-0.977 9,5.063 1] |
| | | B | A | 1.218 243 | 0.958 | [-3.362 1,2.678 9] |
| | | | C | 1.218 243 | 0.357 | [-1.319 5,4.721 5] |
| | | C | A | 1.218 243 | 0.232 | [-5.063 1,0.977 9] |
| | | | B | 1.218 243 | 0.357 | [-4.721 5,1.319 5] |
| | LSD | A | B | 1.218 243 | 0.781 | [-2.158 0,2.841 2] |
| | | | C | 1.218 243 | 0.105 | [-0.457 0,4.542 2] |
| | | B | A | 1.218 243 | 0.781 | [-2.841 2,2.158 0] |
| | | | C | 1.218 243 | 0.174 | [-0.798 6,4.200 6] |
| | | C | A | 1.218 243 | 0.105 | [-4.542 2,0.457 0] |
| | | | B | 1.218 243 | 0.174 | [-4.200 6,0.798 6] |
| | Bonferroni | A | B | 1.218 243 | 1.000 | [-2.767 9,3.451 1] |
| | | | C | 1.218 243 | 0.315 | [-1.066 9,5.152 1] |
| | | B | A | 1.218 243 | 1.000 | [-3.451 1,2.767 9] |
| | | | C | 1.218 243 | 0.522 | [-1.408 5,4.810 5] |
| | | C | A | 1.218 243 | 0.315 | [-5.152 1,1.066 9] |
| | | | B | 1.218 243 | 0.522 | [-4.810 5,1.408 5] |
| 11β-HSD1 | DVLG | Tukey HSD | A | B | 0.065 03 | 0.913 | [-0.134 8,0.187 7] |
| | | | C | 0.065 03 | 0.484 | [-0.085 5,0.236 9] |
| | | B | A | 0.065 03 | 0.913 | [-0.187 7,0.134 8] |
| | | | C | 0.065 03 | 0.732 | [-0.111 9,0.210 5] |
| | | C | A | 0.065 03 | 0.484 | [-0.236 9,0.085 5] |
| | | | B | 0.065 03 | 0.732 | [-0.210 5,0.111 9] |
| | LSD | A | B | 0.065 03 | 0.688 | [-0.107 0,0.159 8] |
| | | | C | 0.065 03 | 0.255 | [-0.057 7,0.209 1] |
| | | B | A | 0.065 03 | 0.688 | [-0.159 8,0.107 0] |
| | | | C | 0.065 03 | 0.455 | [-0.084 1,0.182 7] |
| | | C | A | 0.065 03 | 0.255 | [-0.209 1,0.057 7] |
| | | | B | 0.065 03 | 0.455 | [-0.182 7,0.084 1] |
| | Bonferroni | A | B | 0.065 03 | 1.000 | [-0.139 6,0.192 4] |
| | | | C | 0.065 03 | 0.764 | [-0.090 3,0.241 7] |
| | | B | A | 0.065 03 | 1.000 | [-0.192 4,0.139 6] |
| | | | C | 0.065 03 | 1.000 | [-0.116 7,0.215 3] |
| | | C | A | 0.065 03 | 0.764 | [-0.241 7,0.090 3] |
| | | | B | 0.065 03 | 1.000 | [-0.215 3,0.116 7] |
| | | | C | 25.114 | 0.621 | [-63.621,38.570] |
), ArticleFig(id=1240376128473452577, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表11, caption=
事后多重比较结果
, figureFileSmall=null, figureFileBig=null, tableContent=
蛋白种类 (protein type) | 因变量 (dependent variable) | 蛋白(I) [protein(I)] | 蛋白(J) [protein(J)] | 标准误差 (standard error) | 显著性 (significance) | 95%置信区间 (95% confidence interval) |
|---|
| [下限(lower),上限(upper)] |
|---|
| P-gp | DVLG | Tukey HSD | A | B | 0.088 76 | 0.801 | [-0.161 3,0.274 3] |
| | | | C | 0.088 76 | 0.649 | [-0.138 5,0.297 0] |
| | | B | A | 0.088 76 | 0.801 | [-0.274 3,0.161 3] |
| | | | C | 0.088 76 | 0.965 | [-0.195 1,0.240 5] |
| | | C | A | 0.088 76 | 0.649 | [-0.297 0,0.138 5] |
| | | | B | 0.088 76 | 0.965 | [-0.240 5,0.195 1] |
| | LSD | A | B | 0.088 76 | 0.529 | [-0.124 0,0.237 1] |
| | | | C | 0.088 76 | 0.378 | [-0.101 3,0.259 8] |
| | | B | A | 0.088 76 | 0.529 | [-0.237 1,0.124 0] |
| | | | C | 0.088 76 | 0.800 | [-0.157 9,0.203 3] |
| | | C | A | 0.088 76 | 0.378 | [-0.259 8,0.101 3] |
| | | | B | 0.088 76 | 0.800 | [-0.203 3,0.157 9] |
| | Bonferroni | A | B | 0.088 76 | 1.000 | [-0.167 3,0.280 4] |
| | | | C | 0.088 76 | 1.000 | [-0.144 6,0.303 1] |
| | | B | A | 0.088 76 | 1.000 | [-0.280 4,0.167 3] |
| | | | C | 0.088 76 | 1.000 | [-0.201 2,0.246 6] |
| | | C | A | 0.088 76 | 1.000 | [-0.303 1,0.144 6] |
| | | | B | 0.088 76 | 1.000 | [-0.246 6,0.201 2] |
| CYP3A4 | DV | Tukey HSD | A | B | 1.218 243 | 0.958 | [-2.678 9,3.362 1] |
| | | | C | 1.218 243 | 0.232 | [-0.977 9,5.063 1] |
| | | B | A | 1.218 243 | 0.958 | [-3.362 1,2.678 9] |
| | | | C | 1.218 243 | 0.357 | [-1.319 5,4.721 5] |
| | | C | A | 1.218 243 | 0.232 | [-5.063 1,0.977 9] |
| | | | B | 1.218 243 | 0.357 | [-4.721 5,1.319 5] |
| | LSD | A | B | 1.218 243 | 0.781 | [-2.158 0,2.841 2] |
| | | | C | 1.218 243 | 0.105 | [-0.457 0,4.542 2] |
| | | B | A | 1.218 243 | 0.781 | [-2.841 2,2.158 0] |
| | | | C | 1.218 243 | 0.174 | [-0.798 6,4.200 6] |
| | | C | A | 1.218 243 | 0.105 | [-4.542 2,0.457 0] |
| | | | B | 1.218 243 | 0.174 | [-4.200 6,0.798 6] |
| | Bonferroni | A | B | 1.218 243 | 1.000 | [-2.767 9,3.451 1] |
| | | | C | 1.218 243 | 0.315 | [-1.066 9,5.152 1] |
| | | B | A | 1.218 243 | 1.000 | [-3.451 1,2.767 9] |
| | | | C | 1.218 243 | 0.522 | [-1.408 5,4.810 5] |
| | | C | A | 1.218 243 | 0.315 | [-5.152 1,1.066 9] |
| | | | B | 1.218 243 | 0.522 | [-4.810 5,1.408 5] |
| 11β-HSD1 | DVLG | Tukey HSD | A | B | 0.065 03 | 0.913 | [-0.134 8,0.187 7] |
| | | | C | 0.065 03 | 0.484 | [-0.085 5,0.236 9] |
| | | B | A | 0.065 03 | 0.913 | [-0.187 7,0.134 8] |
| | | | C | 0.065 03 | 0.732 | [-0.111 9,0.210 5] |
| | | C | A | 0.065 03 | 0.484 | [-0.236 9,0.085 5] |
| | | | B | 0.065 03 | 0.732 | [-0.210 5,0.111 9] |
| | LSD | A | B | 0.065 03 | 0.688 | [-0.107 0,0.159 8] |
| | | | C | 0.065 03 | 0.255 | [-0.057 7,0.209 1] |
| | | B | A | 0.065 03 | 0.688 | [-0.159 8,0.107 0] |
| | | | C | 0.065 03 | 0.455 | [-0.084 1,0.182 7] |
| | | C | A | 0.065 03 | 0.255 | [-0.209 1,0.057 7] |
| | | | B | 0.065 03 | 0.455 | [-0.182 7,0.084 1] |
| | Bonferroni | A | B | 0.065 03 | 1.000 | [-0.139 6,0.192 4] |
| | | | C | 0.065 03 | 0.764 | [-0.090 3,0.241 7] |
| | | B | A | 0.065 03 | 1.000 | [-0.192 4,0.139 6] |
| | | | C | 0.065 03 | 1.000 | [-0.116 7,0.215 3] |
| | | C | A | 0.065 03 | 0.764 | [-0.241 7,0.090 3] |
| | | | B | 0.065 03 | 1.000 | [-0.215 3,0.116 7] |
| | | | C | 25.114 | 0.621 | [-63.621,38.570] |
), ArticleFig(id=1240376128674779177, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.12, caption=
Hypothesis test summary
, figureFileSmall=null, figureFileBig=null, tableContent=
| 零假设(null hypothesis) | 检验(test) | 显著性(significance) | 结论(decision) |
|---|
DV在胎盘不同部位中的分布是相同的 (the distribution of DV is the same across categorirs of LC) | 独立样本Kruskal-Wallis检验 (independent Samples Kruskal-Wallis Test) | 0.947 | 保留零假设 (retain the null hypothesis) |
), ArticleFig(id=1240376128788025390, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表12, caption=
假设检验总结
, figureFileSmall=null, figureFileBig=null, tableContent=
| 零假设(null hypothesis) | 检验(test) | 显著性(significance) | 结论(decision) |
|---|
DV在胎盘不同部位中的分布是相同的 (the distribution of DV is the same across categorirs of LC) | 独立样本Kruskal-Wallis检验 (independent Samples Kruskal-Wallis Test) | 0.947 | 保留零假设 (retain the null hypothesis) |
), ArticleFig(id=1240376128884494384, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=EN, label=Tab.13, caption=
Post hoc multiple comparison results Independent sample T-test results of placental P-gp protein abundance in Chinese and foreign pregnant women
, figureFileSmall=null, figureFileBig=null, tableContent=
| 统计量 | 方差(双侧) [variance (2-tailed)] | 均值差值 (mean difference) | 标准误差值 (standard error difference) | 差值的95%置信区间 (95% confidence interval of the difference) |
|---|
| [下限(lower),上限(upper)] |
|---|
| DVLG | 假设方差相等(equal variances assumed) | 0.000 | 0.291 19 | 0.069 10 | [0.149 42,0.432 97] |
| 假设方差不相等(equal variances not assumed) | 0.000 | 0.291 19 | 0.063 65 | [0.160 49,0.421 90] |
), ArticleFig(id=1240376128989351988, tenantId=1146029695717560320, journalId=1205117023404326918, articleId=1240372083130160023, language=CN, label=表13, caption=
中外孕妇胎盘P-gp蛋白丰度独立样本T检验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 统计量 | 方差(双侧) [variance (2-tailed)] | 均值差值 (mean difference) | 标准误差值 (standard error difference) | 差值的95%置信区间 (95% confidence interval of the difference) |
|---|
| [下限(lower),上限(upper)] |
|---|
| DVLG | 假设方差相等(equal variances assumed) | 0.000 | 0.291 19 | 0.069 10 | [0.149 42,0.432 97] |
| 假设方差不相等(equal variances not assumed) | 0.000 | 0.291 19 | 0.063 65 | [0.160 49,0.421 90] |
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