题名

甲狀腺激素抗性症

DOI

10.6666/ClinMed.201808_82(2).0084

作者

黃君睿

关键词

甲狀腺激素抗性(resistance to thyroid hormone) ; 甲狀腺激素受器(thyroid hormone receptor) ; 基因(gene)

期刊名称

臨床醫學月刊

卷期/出版年月

82卷2期(2018 / 08 / 31)

页次

463 - 468

内容语文

繁體中文

中文摘要

甲狀腺激素受器有兩種亞型(β和α),分別由兩個基因(THRB和THRA)調控,而這兩種基因的突變分別會造成甲狀腺激素抗性症β和甲狀腺激素抗性症α。同一種突變產生的甲狀腺激素抗性症可以有完全不同的表現型,兩種亞型之間的症狀決定於組織器官表現此種甲狀腺激素受器(β和α)的多寡。在高濃度甲狀腺激素存在下,發現沒有被抑制的甲促素,以及游離型甲狀腺素/三碘甲狀腺素的比值下降,會讓我們懷疑此病。最終的診斷要依賴基因分析,但仍然有少部分的甲狀腺激素抗性症找不到突變的基因。甲狀腺激素抗性症β一般不需要特別用治療,但在懷孕期間因為高濃度的甲狀腺激素會透過胎盤影響到胎兒,因此可能會需要短暫地使用抗甲狀腺藥物。本文旨在回顧甲狀腺激素抗性症的機轉、表現、診斷和治療,以期能讓大家對這個罕見的疾病有所瞭解。

主题分类 醫藥衛生 > 基礎醫學
醫藥衛生 > 社會醫學
参考文献
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