AR and, more rarely, AD mutations in RTEL1 are associated with dyskeratosis congenita, and AD variants in RTEL1 have also been associated with idiopathic pulmonary fibrosis, even with a late or very late onset (Borie et al., 2019; Moore et al., 2019; Newton et al., 2022; Stuart et al., 2015; Walne et al., 2013). This evidence concerns the gene RTEL1 and Alzheimer disease.