Cold agglutinins

Japanese: 寒冷凝集素 - かんれいぎょうしゅうそ
Cold agglutinins

...However, the agglutination is broken down when the reaction solution is heated to 37°C. This is because normal human serum contains small amounts of autologous or allogeneic natural antibodies called cold agglutinins, which bind to blood cells at low temperatures and cause agglutination, but break off at high temperatures. The above phenomenon caused by these antibodies, or the method of detecting and measuring them, is called the cold agglutination reaction. Cold agglutinins are prominent in atypical pneumonia caused by Mycoplasma pneumoniae infection, infectious mononucleosis caused by EB virus infection, benign monoclonal hypergammaglobulinemia, and some patients with multiple myeloma.

*Some of the terminology that mentions "cold agglutinins" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…しかし,その凝集は反応液を37℃に温めるとほぐれる。これは正常ヒト血清中に少量だが低温で血球と結合して凝集を起こし,高温ではずれる寒冷凝集素と呼ばれる自己または同種自然抗体があるためで,この抗体で起こる上述の現象,またはそれを検出,測定する方法を寒冷凝集反応という。寒冷凝集素は,マイコプラズマ(Mycoplasma pneumoniae)感染による非定型肺炎,EBウイルス感染による伝染性単核症,良性単クローン性高γ‐グロブリン血症,一部の多発性骨髄腫患者等に顕著に現れる。…

※「寒冷凝集素」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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