ABSTRACT
@#<b>Objective</b> To investigate the effects of low-dose nuclear radiation exposure on the body by analyzing the antioxidant indices, immune indices, lymphocyte proliferation activity, and blood biochemical indices of persons exposed to long-term low-dose nuclear radiation, and to provide a basis for radiation protection and occupational health monitoring. <b>Methods</b> Eighty nuclear radiation workers were selected as the exposure group, and another 30 non-exposure personnel were selected as the control group. In both groups, blood biochemistry, serum total antioxidant capacity (T-AOC), malondialdehyde (MDA), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), lymphocyte proliferation activity, proliferating cell nuclear antigen (PCNA), apoptosis factors Bcl-2 and Bax, lymphocyte transformation rate, and lymphocyte micronucleus rate were measured. <b>Results</b> Compared with the control group, T-AOC, GSH-Px, SOD, cell proliferation activity, PCNA, Bcl-2, lymphocyte transformation rate, white blood cell count, and platelet count in the exposure group were significantly decreased, while MDA and Bax were significantly increased (<i>P</i> < 0.05). The lymphocyte micronucleus rate showed no significant difference between the two groups (<i>P</i> > 0.05). <b>Conclusion</b> Long-term low-dose exposure to nuclear radiation has certain effects on related indices of workers, but does not cause significant damage. The personnel exposed to nuclear radiation should enhance the awareness of protection and strengthen scientific protection to reduce radiation damage.
ABSTRACT
The zinc-finger antiviral protein (ZAP) is a host factor that specifically inhibits the replication of certain viruses by eliminating viral mRNAs in the cytoplasm. In previous studies, we demonstrated that ZAP directly binds to the viral mRNAs and recruits the RNA exosome to degrade the target RNA. In this article, we provide evidence that a DEXH box RNA helicase, DHX30, is required for optimal antiviral activity of ZAP. Pull-down and co-immunoprecipitation assays demonstrated that DHX30 and ZAP interacted with each other via their N terminal domains. Downregulation of DHX30 with shRNAs reduced ZAP's antiviral activity. These data implicate that DHX30 is a cellular factor involved in the antiviral function of ZAP.
Subject(s)
Humans , Cytoplasm , Metabolism , Physiology , DEAD-box RNA Helicases , Metabolism , Immunoprecipitation , Protein Binding , Physiology , RNA , Metabolism , Physiology , RNA Helicases , Metabolism , Physiology , RNA, Messenger , Metabolism , Physiology , RNA, Viral , Metabolism , RNA-Binding Proteins , MetabolismABSTRACT
C groups and coincidence with pathological changes.After treatment fourth and twelfth weeks,ALP activity,calcium content was higher in group A than group B (?