Isotretinoin is a derivative of vitamin A and acts on retinoic acid receptors. Which option best reflects this statement?

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Multiple Choice

Isotretinoin is a derivative of vitamin A and acts on retinoic acid receptors. Which option best reflects this statement?

Explanation:
Isotretinoin is a retinoid derived from vitamin A and its action centers on binding to retinoic acid receptors, which are transcription factors that regulate gene expression. By activating these receptors, isotretinoin alters the activity of genes involved in keratinocyte differentiation and sebaceous gland function, leading to reduced sebum production and normalization of follicular epithelium. This mechanism explains its effectiveness in severe acne and why it is not simply an antibiotic or a cosmetic treatment. It is typically given orally for systemic effect, rather than as a topical medication.

Isotretinoin is a retinoid derived from vitamin A and its action centers on binding to retinoic acid receptors, which are transcription factors that regulate gene expression. By activating these receptors, isotretinoin alters the activity of genes involved in keratinocyte differentiation and sebaceous gland function, leading to reduced sebum production and normalization of follicular epithelium. This mechanism explains its effectiveness in severe acne and why it is not simply an antibiotic or a cosmetic treatment. It is typically given orally for systemic effect, rather than as a topical medication.

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