这个词是什么意思？
The principal cyclooxygenase metabolite of arachidonic acid. It is released upon activation of mast cells and is also synthesized by alveolar macrophages. Among its many biological actions, the most important are its bronchoconstrictor, platelet-activating-factor-inhibitory, and cytotoxic effects.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D015230 · MeSH 2026。
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