毒理性
钚产生的电离辐射会导致细胞损伤,包括DNA断裂、准确或不准确的修复、细胞凋亡、基因突变、染色体改变和遗传不稳定。这导致正常细胞和组织的稳态丧失,以及恶性肿瘤的发展。不直接损伤DNA的电离辐射可以产生反应性氧中间体,这些中间体直接影响p53的稳定性,p53是细胞周期调节中重要的酶,并通过DNA复制过程中的错配产生DNA单个碱基的氧化损伤和点突变。
The ionizing radiation produced by neptunium causes cellular damage that includes DNA breakage, accurate or inaccurate repair, apoptosis, gene mutations, chromosomal change, and genetic instability. This leads to loss of normal cell and tissue homeostasis, and development of malignancy. Ionizing radiation that does not directly damage DNA can produce reactive oxygen intermediates that directly affect the stability of p53, an important enzyme in cell-cycle regulation, and produce oxidative damage to individual bases in DNA and point mutations by mispairing during DNA replication. (L1837)
来源:Toxin and Toxin Target Database (T3DB)