V2EX hla-b27

HLA-B27

释义 Definition

HLA-B27 指一种人类白细胞抗原(HLA)B位点的特定等位基因/抗原类型。在医学上,它常用于评估某些脊柱关节病(如强直性脊柱炎)的遗传易感性风险;但“阳性”并不等同于一定患病,仍需结合症状与影像学等检查综合判断。

发音 Pronunciation (IPA)

/et l e bi twentisvn/

例句 Examples

My doctor ordered an HLA-B27 test.
医生给我开了 HLA-B27 检测。

HLA-B27 positivity can be associated with ankylosing spondylitis, especially when chronic back pain and morning stiffness are present.
HLA-B27 阳性可能与强直性脊柱炎有关,尤其是在出现慢性背痛和晨僵等症状时。

词源 Etymology

HLAHuman Leukocyte Antigen(人类白细胞抗原)的缩写,属于参与免疫识别的基因/蛋白系统;B 表示 HLA 的一个主要位点(基因座),27 是该位点下的具体分型编号。因此 HLA-B27 本质上是“HLA-B 位点的第 27 号分型”。

相关词 Related Words

文学与著作 Literary Works

  • Harrison’s Principles of Internal Medicine(《哈里森内科学》)中在“脊柱关节病/强直性脊柱炎”相关章节常提及 HLA-B27
  • Robbins and Cotran Pathologic Basis of Disease(《罗宾斯-科特兰病理学基础》)在免疫与炎症相关内容中讨论 HLA 与疾病关联时会出现 HLA-B27
  • The LancetNew England Journal of Medicine (NEJM) 等医学期刊的强直性脊柱炎与脊柱关节病研究文章中经常出现 HLA-B27
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