_单纯性肥胖者血清胆汁酸谱研究

合集下载
  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

文章编号:1673-

8640(2012)10-0795-04中图分类号:Q548

文献标志码:A

单纯性肥胖者血清胆汁酸谱研究

韩建华1

,苏

薇1

,文

艳2

,崔

巍1

,邱

1

(1.中国医学科学院北京协和医学院北京协和医院检验科,北京100730;

2.岛津企业管理(中国)有限公司,北京100020)

摘要:目的

探讨单纯性肥胖者血清胆汁酸谱的特征,为阐明胆汁酸引发的能量代谢相关机制和探寻新的

肥胖生物治疗靶点提供研究依据。方法

利用超高效液相色谱-串联质谱(UPLC-MS /MS )联用方法检测体检人群中10名表观正常对照者、

10例超重者和10例单纯性肥胖者血清胆汁酸谱的特征。结果表观正常对照组、

超重组和单纯性肥胖组血清中14种胆汁酸亚组分均有表达,其中的石胆酸(LCA )、牛磺胆酸(TCA )、牛磺石胆酸(TLCA )和牛磺熊脱氧胆酸(TUDCA )的表达水平最低;14种胆汁酸亚组分在各组间的差异均无统计学意义(P >0.05);单纯性肥胖组的胆汁酸谱中以甘氨鹅脱氧胆酸(GCDCA )和牛磺鹅脱氧胆酸(TCDCA )增高为主;超重组及单纯性肥胖组血清游离型胆汁酸(FBA )和结合胆汁酸(CBA )水平稍低于表观正常对照组,但差异无统计学意义(P >0.05)。

结论单纯性肥胖者血清胆汁酸谱中以GCDCA 和TCDCA 增高为主,但各种胆汁酸亚组分

的表达水平与表观正常者相同。

关键词:胆汁酸谱;单纯性肥胖;超高效液相色谱-串联质谱

Research of serum bile acid profiles in patients with simple obesity HAN Jianhua 1,SU Wei 1,WEN

Yan 2,CUI Wei 1,QIU Ling 1.

(1.Department of Clinical Laboratory ,Peking Union Medical College Hospital ,

Chinese Academy of Medical Sciences and Peking Union Medical College ,Beijing 100730,China ;2.Shimadzu Business Management (China )Co.,Ltd.,Beijing 100020,China )

Abstract :Objective

To investigate the expression characteristics of serum bile acid profiles in patients with

simple obesity ,further to understand the effect of bile acids inducing signaling on human body energy metabolism ,and to provide experimental evidence and clues on searching potential biotherapy target.Methods Ultra-performance liquid

chromatography-tandem mass spectrometry (UPLC-MS /MS )assay was used to test serum bile acid profiles of 10healthy subjects ,10subjects with overweight and 10patients with simple obesity.Results

A total of 14bile acid subgroups

were detected in all sera from healthy ,overweight and simple obesity groups ,and lithocholic acid (LCA ),taurocholic acid (TCA ),taurolithocholic acid (TLCA )and tauroursodeoxycholic acid (TUDCA )had lowest expression in all groups.The expressions of all different 14bile acid subgroups had no statistical significance (P >0.05).The levels of glycochenodeoxycholic acid (GCDCA )and taurochenodeoxycholic acid (TCDCA )increased markedly in serum bile acid (FBA )profiles of simple obesity group.Both free bile acids (CBA )and conjugated bile acids from overweight and simple obesity groups were lower than those from healthy group (P >0.05).

Conclusions

The levels of GCDCA and

TCDCA increase markedly in serum bile acid profiles of patients with simple obesity ,but the expressions of all different 14bile acid subgroups have no significant difference with those of healthy subjects.

Key words :Bile acid profile ;Simple obesity ;Ultra-performance liquid chromatography-tandem mass spectrometry

作者简介:韩建华,女,1980年生,硕士,实习研究员,主要从事临床生化和免疫学检验研究。通讯作者:邱

玲,联系电话:010-

69155420。胆汁酸是在肝细胞内合成的一类内源性羟基

衍生物,主要在脂质的消化和吸收中发挥作用,正常人体内的胆汁酸按结构可分为2大类:一类为游离型胆汁酸(FBA ),包括胆酸(CA )、脱氧胆酸(DCA )、鹅脱氧胆酸(CDCA )和少量的熊脱氧胆酸(UDCA )、石胆酸(LCA );另一类是上述FBA

与甘氨酸(G-)或牛磺酸(T-)结合的产物。新近的研究表明,胆汁酸还可以作为信号分子,在人体脂质、葡萄糖以及能量代谢过程中发挥重要的调

节作用[1]

。因此,研究由于能量代谢失衡引起的单纯性肥胖者体内的胆汁酸表达特征谱,将有助于阐明胆汁酸引发的能量代谢相关机制,并为治

相关文档
最新文档