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LC-MS/MS 法测定抑郁症患者晨尿中 9 种氨基酸类内源性物质

        的浓度        Δ


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        宋红艳 ,夏敬胜 ,纪刚剑 ,任章焘 ,张相林 ,柳 芳 ,陈 灵 (1.武汉市第三医院/武汉大学附属同仁医院药
              1*
                                        1
        学部,武汉 430060;2.中日友好医院药学部,北京 100029)
        中图分类号 R969          文献标志码 A          文章编号 1001-0408(2020)01-0091-08
        DOI  10.6039/j.issn.1001-0408.2020.01.16
        摘  要   目的:建立测定人体尿液中5-羟基吲哚乙酸、谷氨酰胺、马尿酸、庚二酸、脯氨酸、酪氨酸、色氨酸、酪胺、缬氨酸浓度的方
        法。方法:采集抑郁症患者的晨尿,加入内标可的松,以乙腈处理后取上清液进行浓缩,采用液相色谱-质谱串联法(LC-MS/MS)进
        行分析。色谱柱为XTerra RP18;流动相A相为0.1%乙酸-水,流动相B相为0.1%乙酸-乙腈(梯度洗脱);柱温为40 ℃;流速为0.45
        mL/min;采用电喷雾离子源(ESI),以多反应监测方式(MRM)进行定量分析,5-羟基吲哚乙酸、谷氨酰胺、马尿酸、庚二酸、脯氨酸、
        酪氨酸、色氨酸、酪胺、缬氨酸和内标可的松在正离子模式下定量分析离子对分别为质荷比(m/z)192.2→146.1、147.2→130.0、
        180.1→105.1、161.1→125.2、116.1→70.2、205.2→188.2、138.2→121.1、182.0→123.0、118.2→72.1、361.2→163.0。结果:5-羟基吲哚
        乙酸、谷氨酰胺、缬氨酸、庚二酸、脯氨酸、酪胺的检测质量浓度范围为10.00~3 200 ng/mL(r=0.993 8~0.998 9,n=6),定量下限
        为10 ng/mL;色氨酸、酪氨酸、马尿酸的检测质量浓度范围为1 600~51 200 ng/mL(r=0.999 2~0.999 7,n=6),定量下限为1 600
        ng/mL,准确度试验结果为 86.29%~98.65%(n=6),日内、日间精密度试验的 RSD 均不高于 14.65%(n=6),基质效应的 CV 为
        6.18%~14.37%(n=6),提取回收率为86.21%~98.14%(n=6),稳定性试验的RE均<14.71%(n=3~6)。结论:该方法灵敏、准
        确,可用于测定人体内上述9种物质的浓度。
        关键词 抑郁症患者;尿液浓度;液相色谱-质谱串联法;氨基酸类物质

        Determination of 9 Amino Acid Endogenous Substances in Morning Urine of Depression Patients by
        LC-MS/MS
        SONG Hongyan ,XIA Jingsheng ,JI Gangjian ,REN Zhangtao ,ZHANG Xianglin ,LIU Fang ,CHEN Ling       1
                                                                 1
                                                  1
                                     1
                                                                                   2
                      1
                                                                                              2
       (1.Dept. of Pharmacy,Wuhan Third Hospital/Tongren Hospital Affiliated to Wuhan University,Wuhan 430060,
        China;2.Dept. of Pharmacy,China-Japan Friendship Hospital,Beijing 100029,China)
        ABSTRACT    OBJECTIVE:To establish a method for the determination of 5-hydroxyindole acetic acid(5-HIAA),glutamine,
        hippurate,pimelate,proline,tryptophan,tyramine,tyrosine and valine in human urine. METHODS:Morning urine samples were
        collected from depression patients. The sample was extracted with acetonitrile after addition of internal standard cortisone. LC-MS/
        MS method was adopted. The determination was performed on XTerra RP18 column with mobile phase consisted of 0.1% acetic
        acid-water as mobile phase A and 0.1% acetic acid-acetonitrile as mobile phase B(gradient elution). The column temperature was
        set at 40 ℃,and flow rate was 0.45 mL/min. Electrospray ion source(ESI)was used for quantitative analysis by multiple reaction
        monitoring (MRM). The precursor/product ion transitions (m/z) were monitored at m/z 192.2→146.1,m/z 147.2→130.0,m/z
        180.1→105.1,m/z 161.1→125.2,m/z 116.1→70.2,m/z 205.2→188.2,m/z 138.2→121.1,m/z 182.0→123.0,m/z 118.2→72.1 and
        m/z 361.2→163.0(+ion-mode)for 5-HIAA,glutamine,hippurate,pimelate,proline,tryptophan,tyramine,tyrosine,valine and
        cortisone,respectively. RESULTS:The linear range of 5-HIAA,glutamine,pimelate,proline,tyramine and valine were 10.00-3
        200 ng/mL(r=0.993 8-0.998 9,n=6). The lower limit of quantification was 10 ng/mL;the linear range of hippurate,tryptophan
        and tyrosine were 1 600-51 200 ng/mL(r=0.999 2-0.999 7,n=6). The lower limit of quantitation was 1 600 ng/mL. The results
        of accuracy tests were 86.29%-98.65%(n=6). RSDs of intra-day and inter-day precision tests were no more than 14.65%(n=6).
        CV of matrix effect were 6.18%-14.37%(n=6). Extraction recovery rates were 86.21%-98.14%(n=6). RE of stability tests
        were no more than 14.71%(n=3-6). CONCLUSIONS:The method is sensitive,accurate and suitable for the determination of 9
        substances in human.
        KEYWORDS    Depression patients;Urine concentration;LC-MS/MS;Amino acid substances

                                                               抑郁症神经生物化学方面的研究是近几十年来的
           Δ 基金项目:湖北省自然科学基金资助项目(No.2019CFC886)
           *药师。研究方向:临床药学。电话:027-68894880。E-mail:           研究的热点,取得了很大的进展,通过对抑郁症临床治
        2531248621@qq.com
                                                           疗的有效药物进行研究,几乎所有在临床上有效的抗抑
           # 通信作者:主管中药师,硕士。研究方向:临床中药学。电话:
        027-68894886。E-mail:57776228@qq.com                郁剂都能够影响人体内物质含量的变化                  [1-2] 。 目前临床


        中国药房    2020年第31卷第1期                                               China Pharmacy 2020 Vol. 31 No. 1  ·91  ·
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