ABSTRACT
Nucleic acid aptamer is an oligonucleotide sequence screened by the exponential enrichment ligand system evolution technology (SELEX). Previous studies have shown that nucleic acid aptamer has a good application prospect in tumor diagnosis and treatment. Therefore, we reviewed the selection and identification of nucleic acid aptamer of lung cancer cells in recent years, and discussed the effect of aptamer as targeting drugs and targeting vectors on the diagnosis of tumors, which provide a new idea for early diagnosis and treatment of tumor.
ABSTRACT
the paper discussed the unavoidable ethical conflicts during disaster medical treatment:Equal right to treatment enjoyed by everyone vs.priority for those who need emergency treatment;Humanity principle vs.relinquishment of invalid treament;Informed consent principle vs.emergency treatment;Life rescue vs.life quality improvement during treatment.