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甲巯咪唑对甲状腺功能亢进症大鼠尿液代谢组学的影响研究
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卢 旭 ,李 玲 ,叶 涛 ,彭佑锋 ,何佳馨 ,张 宁 (1.贵州中医药大学药学院,贵阳 550025;2.贵州中
医药大学第一附属医院药学部,贵阳 550001;3.贵州中医药大学第一附属医院康复科,贵阳 550001;4.贵州
省大方县中医医院药剂科,贵阳 551699)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2024)09-1064-06
DOI 10.6039/j.issn.1001-0408.2024.09.07
摘 要 目的 研究甲巯咪唑对甲状腺功能亢进症大鼠尿液代谢组学的影响,并初步探讨其可能机制。方法 将30只SD大鼠随
机分为对照组、模型组、甲巯咪唑组,每组10只。除对照组外其余各组大鼠连续灌胃左甲状腺素钠片(160 mg/kg)15 d复制甲状腺
功能亢进症模型,且甲巯咪唑组在造模同时每天灌胃甲巯咪唑(3.6 mg/kg)。观察大鼠基本情况,测量体重和肛温;末次给药后,检
测大鼠血清中三碘甲腺原氨酸(T3 )、四碘甲腺原氨酸(T4 )、游离三碘甲腺原氨酸(FT3 )、游离四碘甲腺原氨酸(FT4 )和促甲状腺激素
(TSH)水平。于给药第15天收集各组大鼠24 h尿液,采用超高效液相色谱-飞行时间质谱(UPLC-TOF-MS)技术对大鼠尿液进行
代谢组学分析,利用主成分分析和正交偏最小二乘-判别分析筛选差异代谢物,并通过 HMDB、KEGG 数据库进行代谢通路分
析。结果 与对照组相比,模型组大鼠肛温和血清中T3、T4、FT3、FT4水平,尿液中差异代谢物癸二酸、利胆酸3-O-葡萄糖醛酸和N ,
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N ,N -三甲基-L-赖氨酸表达均显著升高/上调,体重、血清中TSH水平和尿液中脱氧胞苷和2-氧代-4-甲硫基丁酸表达均显著降低/
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下调(P<0.01)。与模型组相比,甲巯咪唑组大鼠上述指标水平均显著逆转(P<0.05或P<0.01)。上述5个差异代谢物主要涉及
戊糖和葡萄糖醛酸相互作用、赖氨酸降解、半胱氨酸和甲硫氨酸代谢以及嘧啶代谢这4条代谢通路。结论 甲巯咪唑可能是通过
调节戊糖和葡萄糖醛酸相互作用、赖氨酸降解、半胱氨酸和甲硫氨酸代谢以及嘧啶代谢,从而发挥改善甲状腺功能亢进症的作用。
关键词 甲巯咪唑;甲状腺功能亢进症;尿液代谢组学;差异代谢物;超高效液相色谱-飞行时间质谱
Effects of methimazole on urinary metabolomics in hyperthyroidism rats
LU Xu ,LI Ling ,YE Tao ,PENG Youfeng ,HE Jiaxin ,ZHANG Ning (1. School of Pharmacy, Guizhou
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University of Traditional Chinese Medicine, Guiyang 550025, China;2. Dept. of Pharmacy, the First Affiliated
Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China;3. Dept. of
Rehabilitation, the First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang
550001, China;4. Dept. of Pharmacy, Dafang County Hospital of Traditional Chinese Medicine in Guizhou
Province, Guiyang 551699, China)
ABSTRACT OBJECTIVE To study the effects of methimazole on the urinary metabolomics of hyperthyroidism rats, and to
preliminarily investigate its possible mechanism. METHODS Thirty SD rats were randomly divided into control group, model
group and methimazole group, with 10 rats in each group. Except for the control group, the rats in the other two groups were given
Levothyroxine sodium tablets 160 mg/kg by intragastric administration for 15 days; at the same time, methimazole group was
additionally given methimazole 3.6 mg/kg daily by intragastric administration every day. The basic condition of the rats was
observed, and the body weight and anal temperature were measured. After the last medication, the serum levels of triiodothyronine
(T3 ), tetraiodothyronine (T4 ), free triiodothyronine (FT3 ), free tetraiodothyronine (FT4 ), and thyroid stimulating hormone (TSH)
were determined; 24-hour urine was collected on the 15th day after administration. UPLC-TOF-MS was used to analyze the urine
metabolomics of rats. Principal component analysis and orthogonal partial least squares-discriminant analysis were used to screen out
related differential metabolites, and potential metabolic pathways were analyzed by using HMDB and KEGG. RESULTS Compared
with the control group, the rectal temperature, serum levels of
Δ 基金项目 国家自然科学基金项目(No.82060830);贵州省科技 T3, T4, FT3 and FT4, the expressions of differential metabolites
计划项目(自然科学类)(No.黔科合基础-ZK〔2024〕重点073);贵州省 sebacic acid, cholic acid 3-O-glucuronic acid and N , N , N -
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卫生健康委科学技术基金项目(No.gzwkj2021-457);贵州中医药大学 trimethyl-L-lysine in urine were significantly up-regulated,
大学生创新创业训练计划项目(No.贵中医大创合字〔2021〕74号) while body weight, serum level of TSH, the expressions of
*第一作者 硕士研究生。研究方向:中药及民族药的基础研究与
deoxycytidine and 2-oxo-4-methylthiobutanoic acid in urine
开发。E-mail:2764572801@qq.com
# 通信作者 副教授,硕士生导师,博士。研究方向:中药及民族药 were significantly down-regulated (P<0.01). Compared with
的基础研究与开发。E-mail:634279190@qq.com model group, above indexes of rats were reversed significantly
· 1064 · China Pharmacy 2024 Vol. 35 No. 9 中国药房 2024年第35卷第9期