Shared Phenotypes Among Segmental Progeroid Syndromes Suggest Underlying Pathways of Aging

This review discusses the molecular pathology of progeroid syndromes and reports no new results; the authors emphasize understanding these mechanisms to develop treatments and potentially improve quality of life for affected individuals.

SA linked to mitochondrial issues and oxidative stress, while AGA involves disrupted hair growth genes.

Aging causes hair loss and graying due to stem cell decline and changes in cell behavior and communication.

Melanoma risk tools need improvement, a gene mutation causes a hair disorder that might be treated by managing cell stress, a potential therapy for a skin-ear disorder involves blocking cell channels, skin wrinkling may indicate lung aging regardless of smoking, and oxidative stress might contribute to common baldness.

This article reviews the functions and locations of skin stem cells and their role in regeneration and differentiation, relating age-associated skin changes to decreased stem cell functionality; it reports no new experimental findings.