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Hematological effects of ultrafine carbon black on red blood cells and hemoglobin

机译:超细炭黑对红细胞和血红蛋白的血液学作用

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The harmful effects of ultrafine particles (UFPs) in the atmosphere have caused widespread concern. Ultrafine carbon black (UFCB) is an important component of UFPs. In this study, we explored the impact of UFCB on the structure, the antioxidant defense system, and the ATPase activity of human red blood cells (hRBCs). It was found that UFCB decreased the activity of SOD (73.58%), CAT (89.79%), and GSH-Px (81.02%), leading to oxidative stress in hRBCs. UFCB had no destructive effect on the structure of hRBCs in 4 hours. ATPase activity increased (119.34%) and UFCB had weakly stimulated the cell membrane. On the molecular level, spectroscopic experiments showed that bovine hemoglobin (BHb) can bind to the UFCB by electrostatic force, leading to the shrinking of the BHb skeleton and increase in microenvironment polarity. This study demonstrates the negative hematological effect of UFCB on hemoglobin and hRBCs and reveals the potential risks in animals and humans.
机译:大气中超细颗粒物(UFP)的有害影响已引起广泛关注。超细炭黑(UFCB)是UFPs的重要组成部分。在这项研究中,我们探讨了UFCB对人体红细胞(HRBC)的结构、抗氧化防御系统和ATP酶活性的影响。结果发现,UFCB降低了HRBC中SOD(73.58%)、CAT(89.79%)和GSH-Px(81.02%)的活性,导致氧化应激。UFCB在4小时内对HRBC的结构没有破坏性影响。ATP酶活性升高(119.34%),UFCB对细胞膜刺激较弱。在分子水平上,光谱实验表明,牛血红蛋白(BHb)可以通过静电力与UFCB结合,导致BHb骨架收缩,微环境极性增加。本研究证明了UFCB对血红蛋白和HRBC的负面血液学影响,并揭示了动物和人类的潜在风险。

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