acne
DESCRIPTION
acne - brief reviewTRANSCRIPT
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ACNE
Breif Review
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Acne Vulgaris - Treatment Based on Pathogenesis
• A disease of the pilosebaceous unit of the skin• start appearing in adolecence• Pathogenesis is multifactorial • It causes social, and psychological quality of life
impairment
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Pathogenesis of Acne
• Abnormal follicular keratinization• More sebum production• Proliferation of Propionobacterium acnes• Hormonal factors• Host immune response
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Primary Lesions of Acne
• Closed comedones
• Open comedones
• Red papules
• Pustules
• Nodules or some times Cysts
• Scars
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Primary Lesions of Acne
• Closed comedo
• Open comedo
• Red papule
• Pustule
• Nodule or Cyst
• Scar
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•Acne in 4th and 5th Grade Girls is
Correlated with increased DHEAS during adrenarche
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The Comedo
keratinaceous debris, that blocks the orifice of pilocebaceous unit
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Acne Therapies Principles
• Correct altered follicular keratinization
• Modulate host immune response
• Reduce sebum production
• Decrease androgenic effects
• Inhibit the growth of P. acnes
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Acne Treatments
• For comedonal lesions - topical retinoids– Tretinoin (Retin-A)
– Adapalene (Differin)
– Tazarotene (Tazorac)
• Add benzoyl peroxide 2.5% to 5% if few papules are present too. (Bleaches clothes)
• Or add azelaic acid
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Systemic therapies for acne
– Isotretinoin (Accutane™, Sotret etc.)– DHEAS, free testosterone, 17 OH-P– Ortho Tri-cyclen, Yasmin, Allese– Spironolactone
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