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In this study, three patients with extensive alopecia areata receiving ustekinumab treatment showed significant hair regrowth and decreased inflammation over 20 weeks, suggesting potential targeted treatment for this condition.

In this study, three patients with extensive alopecia areata showed varying degrees of hair regrowth after 20 weeks of treatment with ustekinumab, a cytokine-targeting therapy.

In this study, ustekinumab did not promote hair regrowth in human patients with alopecia areata or prevent disease development in an AA mouse model, suggesting limited efficacy for this treatment.

This study found that both Th1 and Th2 cytokine markers were elevated in the serum and skin of patients with alopecia areata, with Th2 markers more closely linked to disease severity.

This study found that both Th1 and Th2 immune responses, along with IL-23 and IL-32 cytokine pathways, are active in alopecia areata lesions, and corticosteroid injections significantly altered these immune markers.

This review discusses the potential of biologics for treating various skin disorders, highlighting positive outcomes in conditions like pityriasis rubra pilaris and lupus, while noting mixed efficacy in others like alopecia areata; it reports no new clinical results.

JAK inhibitors are effective for hair regrowth in severe alopecia areata.

In this study, nearly 5% of anti-TNF-treated patients with IBD developed psoriasiform skin lesions, with smoking identified as a main risk factor, and ustekinumab proved highly effective in severe cases.

This report describes two cases where patients developed alopecia while undergoing treatment for psoriasis with IL-17 inhibitors, suggesting an unexpected paradoxical reaction.

In this case report, a 62-year-old woman's persistent frontal fibrosing alopecia while on the psoriasis medication ustekinumab suggests that IL-12 and IL-23 inhibition may not be effective in treating this scarring alopecia, challenging the role of Th1 and Th17 pathways in its pathogenesis.

This review discusses the complex role of immune disturbances and the JAK-STAT pathway in alopecia areata, noting the success of JAK inhibitors in treatment, while highlighting ongoing debates and challenges in targeting other pathways like IL-17 and TNF-α.

This study summarizes how the IL-23/IL-17 axis contributes to inflammatory skin diseases like psoriasis and highlights that biologics targeting this pathway, including monoclonal antibodies against IL-23 and IL-17, have shown efficacy in clinical trials for these conditions.

This study identified a distinct cytokine activation signature in alopecia areata, involving TH2, TH1, IL-23, and IL-9/TH9 pathways, suggesting potential targeting strategies similar to those in psoriasis and atopic dermatitis.

This background review discusses alopecia areata, highlighting the role of CD8+NKG2D+ T cells in hair follicle pathogenesis, and notes that the exact mechanisms causing hair loss remain unclear.

This case report describes how changing treatment from adalimumab to guselkumab successfully controlled both pustulotic arthro-osteitis and paradoxical skin reactions in a patient with palmoplantar pustulosis.

This review summarizes 15 years of clinical and experimental research advancements in hidradenitis suppurativa, highlighting its recognition as a uniquely healable inflammatory skin disease but reports no new clinical results.

This review discusses immune pathways involved in alopecia areata and explores emerging, more targeted therapeutic strategies, noting their potential for better safety and effectiveness compared to traditional immune suppressants.

This review discusses recent advances and ongoing clinical trials in novel therapeutics for alopecia areata, despite the lack of current FDA-approved treatments for severe cases, and reports no new results.

This review summarizes recent research on alopecia areata, highlighting advances in targeted therapies due to improved understanding of its immunopathogenesis, though it reports no new clinical results.

This review summarizes various drug treatments for hidradenitis suppurativa, noting their effectiveness, side effects, and high recurrence rates, but reports no new clinical findings.

This study found that UV exposure in human skin induces IL-10 production by macrophages, while Langerhans cells are depleted and their IL-12 production is downregulated.

This article discusses the multifactorial etiopathogenesis of acne vulgaris, highlighting the roles of sebum production, keratosis, bacterial development, and inflammatory mediators, but reports no new clinical results.

This study found that applying AGN root extract containing decursin to mouse skin accelerated hair growth and altered inflammatory cytokine levels compared to a control.

This case report describes a patient with psoriasis, vitiligo, and alopecia areata who showed significant improvement in all conditions after treatment with ustekinumab, suggesting potential benefits of IL-12/23 blockade for these autoimmune diseases.

This study found that decreased allopregnanolone levels through inhibition or intrauterine growth restriction in guinea pigs were linked to altered brain development markers, suggesting a role for neurosteroids in fetal brain protection and development.

This study reported that a specific mixing ratio of Dendropanax extract and sea salt showed low cytotoxicity, high cell proliferation, anti-inflammatory, and antimicrobial effects, suggesting potential for functional cosmetics against hair loss.

This study suggests that targeting specific immune pathways, such as IL-12/23 and Th2 cytokines, may offer new treatment options for alopecia areata, a T-cell-mediated disease without current mechanism-specific therapies.

In this study, botulinum toxin type A injections reduced the severity of treatment-resistant scalp psoriasis in more patients compared to placebo over a 12-week period.

This article reviews multiple treatments for alopecia areata, highlighting their variable efficacy and safety without any being curative; it reports no new clinical findings.

This review discusses the variety of skin disorders associated with atopic dermatitis, exploring their complex relationships and shared genetic and environmental factors, but reports no new clinical results.