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Structural changes in ageing skin.

W Montagna1, K Carlisle

  • 1Oregon Regional Primate Research Center, Beaverton 97006.

The British Journal of Dermatology
|April 1, 1990
PubMed
Summary
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Skin aging is a growing concern due to increased life expectancy. Key changes include epidermal flattening, reduced pigment cells, and dermal fiber loss, distinct from environmental damage.

Area of Science:

  • Dermatology
  • Gerontology
  • Skin Aging Research

Background:

  • Increasing average life expectancy highlights the growing problem of skin aging for dermatologists.
  • It is crucial to differentiate between intrinsic biological aging and extrinsic environmental factors like sun exposure.

Purpose of the Study:

  • To detail the specific epidermal and dermal changes associated with the natural aging process of the skin.

Main Methods:

  • Review of established dermatological and aging research.
  • Analysis of cellular and structural alterations in aging skin.

Main Results:

  • Epidermal changes: flattening, reduced Langerhans cells, fewer melanocytes and melanosomes, leading to decreased pigmentation.

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  • Dermal changes: reduction in collagen, elastic fibers, fibroblasts, mast cells, macrophages; dilated lymphatic channels.
  • Other changes: decline in hair follicles (structure unchanged), unaffected sebaceous glands, altered exocrine sweat glands.

    • Conclusions:

    • Skin aging involves specific, predictable changes in both the epidermis and dermis.
    • Understanding these intrinsic changes is vital for dermatological practice and anti-aging strategies.