Mutations in the TERC gene as well as in other telomerase components cause accelerated telomere attrition, leading to disease: dyskeratosis congenita mainly in children [10-15], pulmonary fibrosis [16-18], liver cirrhosis [19], and bone marrow failure syndromes of adults (aplastic anemia, myelodysplastic syndromes (MDS), and others) [20-22]. This evidence concerns the gene TERC and myelodysplastic syndrome.