Hamasaki Naotaka
Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582.
Rinsho Byori. 2006 Mar;54(3):263-9.
Oxygen is essential for most forms of life, but too much oxygen is harmful and can induce tissue damage. Living creatures therefore have a tightly regulated system to deliver the necessary amount of oxygen to specific tissues at the right time. CO2 is not simply waste matter from tissues, but regulates the amount of oxygen delivered to tissues from red blood cells, utilizing the synergistic effects of hemoglobin, carbonic anhydrase and the anion exchange activity of band 3 protein. Red blood cells play an important role in this system and provide an ideal vehicle for delivering oxygen to tissues, depending on their metabolic activity.
氧气对大多数生命形式至关重要，但过量的氧气是有害的，会导致组织损伤。因此，生物拥有一个严格调控的系统，以便在合适的时间将所需量的氧气输送到特定组织。二氧化碳并非仅仅是组织产生的废物，而是利用血红蛋白、碳酸酐酶和带3蛋白的阴离子交换活性的协同作用，调节从红细胞输送到组织的氧气量。红细胞在这个系统中发挥着重要作用，并根据其代谢活性为向组织输送氧气提供了理想的载体。
