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← Human Body & HealthA patient with chronic eczema experiences increased Staphylococcus aureus skin infections. Which mechanism explains why this occurs due to impaired skin barrier function?
A)Increased stratum corneum ceramide synthesis
B)Disrupted epidermal antimicrobial peptide production✓
C)Enhanced filaggrin aggregation in keratinocytes
D)Elevated sebaceous gland sebum secretion
💡 Explanation
Eczema disrupts the skin barrier, leading to decreased production of antimicrobial peptides, which normally defend against bacteria like S. aureus. Because of this impaired defense, the risk of infection increases; therefore, the correct answer is disrupted peptide production, rather than altered lipid synthesis or filaggrin aggregation.
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