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← Human Body & HealthA patient undergoes prolonged corticosteroid therapy; which consequence becomes most likely due to the reduced synthesis of dermal components?
A)Increased histamine production after injury
B)Accelerated fibroblast proliferation in wounds
C)Enhanced melanocyte activity under UV exposure
D)Impaired collagen cross-linking during repair✓
💡 Explanation
Corticosteroids inhibit collagen synthesis and reduce its cross-linking, thus reducing wound strength. Impaired collagen cross-linking during repair results because corticosteroids suppress prolyl hydroxylase, an enzyme essential for collagen maturation; therefore, impaired repair is the consequence, rather than accelerated fibroblast proliferation or enhanced melanocyte activity, which are not directly suppressed.
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