HIF1A and thoracic aortic aneurysm: Although previous studiessuggested that long non-coding ribonucleic acid (RNA) hypoxia induciblefactor 1 α-antisense RNA 1 (HIF1A-AS1) exerted a vital role in theprogression and pathogenesis of thoracic aortic aneurysm, we managed to finda new regulatory mechanism of HIF1A-AS1 in VSMCs via transcriptomics.