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[Skin of the aging human being].

G Roupe1

  • 1Hudkliniken, Sahlgrenska Universitetssjukhuset, Göteborg. gosta.roupe@derm.gu.se

Lakartidningen
|April 17, 2001
PubMed
Summary

Skin aging, driven by intrinsic and sun-induced factors, leads to slower healing, reduced immune function, and structural changes like collagen fragmentation. Cellular senescence, linked to telomere shortening, underlies these age-related skin alterations.

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Age and ageing·1996

Area of Science:

  • Dermatology
  • Gerontology
  • Cell Biology

Context:

  • Cutaneous aging encompasses intrinsic aging and photo-aging from sun exposure.
  • Aging skin exhibits decreased epidermal turnover, leading to atrophy and delayed wound healing.
  • Reduced epidermal Langerhans' cells impair immune responsiveness in the elderly.

Purpose:

  • To describe the key histological and cellular changes associated with cutaneous aging.
  • To explain the impact of aging on skin structure and function.
  • To highlight the role of cellular senescence in skin aging.

Summary:

  • Aging skin shows reduced epidermal cell turnover, impaired wound healing, and diminished immune surveillance due to fewer Langerhans' cells.
  • Dermal changes include decreased fibroblasts and mast cells, with collagen bundles becoming fragmented and less elastic.
  • Telomere shortening is identified as a primary mechanism driving cellular senescence in aging skin.

Impact:

  • Understanding these changes is crucial for managing age-related skin conditions and improving wound care in the elderly.
  • This knowledge aids in developing interventions to mitigate the effects of intrinsic and photo-aging.
  • Provides insights into the cellular basis of skin aging, informing future research and therapeutic strategies.

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