Structural skin changes in elderly people investigated by reflectance confocal microscopy

Area of Science:

• Dermatology
• Gerontology
• Medical Imaging

Background:

• Reflectance confocal microscopy (RCM) offers in vivo, non-invasive histological skin analysis.
• Limited RCM studies exist for individuals over 70 years old.

Purpose of the Study:

• To investigate age-related skin changes in the elderly using RCM.
• To evaluate topographical and gender variations in skin aging features.

Main Methods:

• RCM imaging of 209 volunteers (mean age 77.5 years) at photoprotected, chronically photoexposed, and intermittently photoexposed sites.
• Assessment of 15 RCM parameters related to skin aging.

Main Results:

• Photoexposed sites showed thicker epidermis, linear furrows, mottled pigmentation, and altered collagen compared to protected sites.
• Irregular honeycomb pattern was not increased in photoexposed sites, suggesting intrinsic aging influence.
• Facial aging scores effectively identified photoaging; gender differences were minor and site-specific.

Conclusions:

• RCM is a potent non-invasive tool for quantifying skin aging signs.
• The study differentiates between intrinsic and extrinsic skin aging mechanisms.