Comparison of Skin Structural and Functional Parameters in Well-Nourished and Moderately Undernourished Infants

Betsy Hughes-Formella1,2, Oliver Wunderlich3, Ragna Williams3

  • 1Independent Consultant, Reinbek, Germany, betsy.hughes@derm-consult.com.

Insights

Moderate undernutrition impacts infant skin development, particularly the dermis and subcutis. However, essential epidermal functions like skin barrier and pH remain largely unaffected in undernourished infants.

Area of Science:

  • Pediatric Dermatology
  • Infant Nutrition
  • Skin Physiology

Background:

  • Limited understanding of nutrition's role in infant skin development.
  • Skin structure and function are crucial for infant health.

Purpose of the Study:

  • To investigate the impact of moderate undernutrition on infant skin structure and function.
  • To compare well-nourished and undernourished infants using noninvasive methods.

Main Methods:

  • Cross-sectional study of 310 infants across various age groups.
  • Noninvasive techniques including skin caliper, sonography, transepidermal water loss, skin pH, and corneometry.
  • Plasma fatty acids analyzed to indicate nutritional status; infants categorized as well-nourished or moderately undernourished.

Main Results:

  • Structural maturational differences observed in the dermis and subcutis of undernourished infants.
  • Subtle epidermal functional changes noted, but skin barrier and hydration were not significantly reduced.
  • Skin pH showed a shift towards more acidic values in the undernourished group.

Conclusions:

  • Moderate undernutrition significantly affects infant dermis and subcutis development.
  • Critical epidermal functions, including skin barrier integrity and pH, are generally maintained despite undernutrition.
  • Findings highlight the resilience of the infant epidermis to moderate nutritional deficits.
Abstract

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