January 2026 in “Dermatologic Therapy” This study found that elevated tissue RBP4 levels correlate with disease severity in alopecia areata and decrease after effective baricitinib treatment, while the rs3758539 polymorphism is linked to disease susceptibility but not to treatment response.
January 2024 in “Archives of Endocrinology and Metabolism” In this case report, a novel heterozygous mutation in the insulin receptor gene was identified in an adolescent girl with type A insulin resistance syndrome, characterized by excessive hair growth and skin changes, and her mother.
42 citations
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January 2011 in “Journal of Biomedical Optics” This study demonstrates that spatially resolved IR and Raman imaging can effectively reveal the molecular structure and composition of untreated human hair, providing insights into its chemistry and structural integrity.
June 2026 in “Morphology” This study found that IBA-1-immunopositive macrophages in rat skin during wound healing show varied morphometric characteristics and peak in numbers at 2, 6, and 15 days post-injury.
June 2026 in “Frontiers in Oncology” In this study, researchers analyzed adverse event reports from the FAERS database to identify safety concerns associated with ipilimumab in elderly patients, noting common issues like gastrointestinal events and new signals such as orchitis and alopecia areata, with timing influenced by body weight.
November 2025 in “SKIN The Journal of Cutaneous Medicine” In this study on adolescents with severe alopecia areata, baricitinib treatment showed effective scalp, eyebrow, and eyelash regrowth after 52 weeks, benefiting both responders and partial or non-responders, potentially reducing the psychosocial impact of the disease.
6 citations
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June 2011 in “British Journal of Dermatology” This study found that individuals with alopecia areata had significantly higher serum levels of retinol-binding protein 4 and increased IgG immunoreactivity against it, suggesting a role in the disease's pathogenesis.
November 2025 in “SKIN The Journal of Cutaneous Medicine” This study observed that adolescents with alopecia areata receiving ritlecitinib 50 mg daily showed notable hair regrowth over three years, as seen in both clinician- and patient-reported outcomes. However, the decreased number of participants at later stages limits the findings.
February 2024 in “Journal of the European Academy of Dermatology and Venereology” In this study, baricitinib for severe alopecia areata showed sustained efficacy over 104 weeks, with most Week-52 responders maintaining significant hair regrowth and some mixed responders improving further with long-term treatment.
February 2026 in “Clinical Cosmetic and Investigational Dermatology” This case report describes a 7-year-old girl who developed radiation-induced alopecia after a neurointerventional procedure, with dermoscopy revealing specific hair and scalp patterns that helped diagnose this rare complication. The findings highlight the importance of dermoscopy in distinguishing RIA from other alopecic disorders in children.
3 citations
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September 2022 in “Journal of the American Academy of Dermatology” In this study, baricitinib treatment for severe alopecia areata showed similar safety and led to hair regrowth improvements independent of atopic background, with 40.8% of patients with atopy achieving a significant response compared to 30.2% without atopy when using a 4 mg dose.
June 2026 in “JAAD Case Reports”
January 2026 in “Frontiers in Public Health” This study observed distinct post-marketing safety signal patterns for baricitinib and tofacitinib in adult AA, influenced by their differing regulatory uses and real-world contexts, and emphasizes the need for future studies to validate these findings.
September 2024 in “Journal of the American Academy of Dermatology” In this retrospective analysis, baricitinib 4 mg was found to improve hair regrowth and was deemed effective and safe for treating severe alopecia areata in a real-world setting.
October 2023 in “The Open Dermatology Journal” Baricitinib is effective for severe alopecia areata with manageable side effects, mainly upper respiratory infections.
November 2024 in “SKIN The Journal of Cutaneous Medicine” This study found that daily treatment with ritlecitinib 50 mg over 24 months reduced the number of patients in the highest categories of scalp hair loss, with improvements seen in patient responses over time.
August 2022 in “Journal of Investigative Dermatology” Baricitinib reduces inflammation and mitochondrial damage in skin cells.
November 2025 in “Journal of Investigative Dermatology” Radiation-induced hair loss may be caused by hair growth stopping and inflammation in blood vessels.
2 citations
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October 2023 in “Frontiers in Immunology” In this study, researchers used Mendelian randomization to find a significant genetic association between rheumatoid arthritis and an increased risk of alopecia areata, suggesting RA patients should be vigilant for potential AA development.
1 citations
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July 2022 in “British Journal of Dermatology” Baricitinib was effective in treating hair loss in adults with alopecia areata according to patient feedback.
June 2025 in “Acta Dermato Venereologica” Low-dose Ritlecitinib may help children with stubborn Alopecia Areata.
February 2026 in “Small Ruminant Research” This study found that specific genetic variations in the IRF2BP2 gene influence fleece structure in sheep, with one variant completely determining coat type and another significantly modifying fiber characteristics, providing valuable insights for improving fleece quality through selective breeding.
July 2025 in “Journal of the European Academy of Dermatology and Venereology” This study reports no new findings but provides corrected figures for the long-term safety and efficacy of ritlecitinib in treating alopecia areata from the ALLEGRO-LT phase 3 study.
November 2025 in “SKIN The Journal of Cutaneous Medicine” In this study, UPA at doses of 15 mg and 30 mg showed higher efficacy than placebo for treating severe alopecia areata in adults and adolescents over 24 weeks, with a safety profile similar to approved uses.
63 citations
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January 2006 in “Journal of cosmetic and laser therapy” This study found that pulsed infrared diode laser therapy (904 nm) was effective in promoting hair regrowth in 94% of patients with resistant patches of alopecia areata.
December 2025 in “Frontiers in Medicine” This case report presents the first instance of a pediatric alopecia areata patient switching from baricitinib to ritlecitinib, demonstrating favorable clinical outcomes, suggesting a potential new treatment pathway for children with severe cases of this condition.
1 citations
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February 2024 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” In this research, the authors reported that long-term treatment with the JAK1/JAK2 inhibitor baricitinib effectively maintains hair regrowth in patients with severe alopecia areata and may gradually improve outcomes for partial responders over 104 weeks, without increasing side effect incidence.
1 citations
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November 2025 in “Neuro-Oncology” In this study, safusidenib erbumine was evaluated for its efficacy and safety in patients with untreated IDH1-mutated WHO grade 2 gliomas, achieving a 44.4% objective response rate and 87.9% 24-month event-free probability, but with some mild to moderate adverse effects.
July 2026 in “Journal of Investigative Dermatology” Baricitinib effectively stops hair loss and promotes regrowth in acute alopecia areata.
2 citations
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November 2004 in “Blood” In this study, researchers reported that the Pinkie mutation in mice, affecting RXRa activity, leads to skewed Th1 development and suggests RXRa's role in Th2 differentiation, impacting immune responses.