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实验表明稀土离子可一定程度地抑制血红蛋白在低氧分压时释放氧的功能；所有稀土离子都可导致血红蛋白珠蛋白和血红素辅基的荧光发射增强，使血红蛋白的α螺旋含量减少和引起二级结构和构象的改变；稀土离子还可能干扰珠蛋白部分和血红素辅基正常的相互作用
Experiments show that rare earth ions can inhibit hemoglobin to a certain extent in the partial pressure of oxygen release oxygen function; all rare earth ions can lead to hemoglobin and heme prostrate fluorescence emission increased hemoglobin α-helix content decreased and caused Secondary structure and conformational changes; rare earth ions may also interfere with the normal part of globin and heme prosthetic interaction