Nitric oxide is an important effector molecule of macrophages that is involved in immune regulation and host defense.

一氧化氮是一种重要的巨噬细胞免疫效应分子，它参与免疫调节和宿主防御反应。

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Nitric oxide (NO), an important biological messenger and effector molecule, is involved in maintaining the physiological function in cardiovascular, immune and nervous systems.

一氧化氮(NO)作为信使分子和效应分子在心血管、免疫、神经等系统中发挥重要生理功能。

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