The Relevance of Clonal Hematopoiesis to Degenerative Aging Remains Uncertain
The article reviews clonal hematopoiesis (CH) as age‑related somatic mosaicism in blood that associates with cancer and cardiovascular disease but has an uncertain causal role in broader degenerative aging. It outlines CH forms (chromosomal changes, point mutations), links with inflammageing, immunosenescence, accelerated epigenetic age and shorter telomeres, and highlights heterogeneity in detection methods and the need for causal, mechanistic studies.
Why it mattersDetection of clonal hematopoiesis in blood samples predicts higher heart attack risk, prompting intensified cardiovascular screening.