SnapshotDx Quiz: March 2016

    February 2016 in “ ˜The œjournal of investigative dermatology/Journal of investigative dermatology ”
    Jenny Baker, Mariya Miteva
    From the encyclopedia
    Alopecia Areata →

    autoimmune disorder causing patchy hair loss

    Tofacitinib →

    a JAK inhibitor for alopecia areata and other autoimmune conditions

    Baricitinib →

    JAK inhibitor that reduces inflammation and immune attacks on hair follicles, leading to potential hair regrowth, especially in alopecia areata cases

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    Studysummary This quiz presents educational questions about alopecia areata, including its diagnosis and underlying mechanisms, but reports no new clinical outcomes.
    Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer
    The "SnapshotDx Quiz: March 2016" document discussed alopecia areata (AA), an autoimmune disease causing abrupt hair loss, and highlighted findings from a study by Li et al. The study identified CD103+CD8+ resident memory T-cells in active AA biopsies and suggested the potential use of JAK inhibitors for treatment. Small pilot studies and case reports showed that JAK inhibitors like tofacitinib, ruxolitinib, and baricitinib could reverse AA. The study also found increased expression of chemokines and chemokine receptors in active AA bulbs, indicating a role in inflammation and relapse, and abnormal transcriptional patterns in regrown follicles, suggesting a persistent predisposition to AA.
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