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Suehiro M, Tanaka A. A case of atopic dermatitis with self-healing acute diffuse and total alopecia during nemolizumab treatment. J Dermatol 2024; 51:e123-e124. [PMID: 37929306 DOI: 10.1111/1346-8138.17023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 10/14/2023] [Accepted: 10/19/2023] [Indexed: 11/07/2023]
Affiliation(s)
- Masataka Suehiro
- Department of Dermatology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Akio Tanaka
- Department of Dermatology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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2
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Dainichi T, Iwata M, Kaku Y. Alopecia areata: What's new in the diagnosis and treatment with JAK inhibitors? J Dermatol 2024; 51:196-209. [PMID: 38087654 DOI: 10.1111/1346-8138.17064] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/11/2023] [Accepted: 11/15/2023] [Indexed: 02/04/2024]
Abstract
Alopecia areata (AA) affects individuals of all ages and is intractable in severe relapsing cases. Dermatologists and other healthcare providers should consider AA in the medical context and prioritize treatment. Several randomized controlled clinical studies on Janus kinase (JAK) inhibitors with different specificities for the treatment of AA are ongoing. These studies have encouraged us to appreciate the importance of a definitive diagnosis and accurate evaluation of AA before and during treatment. Following our previous review article in 2017, here we provide the second part of this two-review series on the recent progress in the multidisciplinary approaches to AA from more than 1800 articles published between July 2016 and December 2022. This review focuses on the evaluation, diagnosis, and treatment of AA. We also provide the latest information on the safety and efficacy of JAK inhibitors for the treatment of AA and describe their mechanisms of action.
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Affiliation(s)
- Teruki Dainichi
- Department of Dermatology, Kagawa University Faculty of Medicine, Miki-cho, Kita-gun, Japan
| | - Masashi Iwata
- Department of Dermatology, Kagawa University Faculty of Medicine, Miki-cho, Kita-gun, Japan
| | - Yo Kaku
- Department of Dermatology, Kagawa University Faculty of Medicine, Miki-cho, Kita-gun, Japan
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan
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3
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Al‐Dhubaibi MS, Alsenaid A, Alhetheli G, Abd Elneam AI. Trichoscopy pattern in alopecia areata: A systematic review and meta-analysis. Skin Res Technol 2023; 29:e13378. [PMID: 37357664 PMCID: PMC10236002 DOI: 10.1111/srt.13378] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 05/13/2023] [Indexed: 06/27/2023]
Abstract
BACKGROUND The incidence of alopecia areata (AA) has increased over the last few decades. Trichoscopy is a noninvasive procedure performed in dermatology clinics and is a helpful tool in determining the correct diagnosis of hair loss presentations. OBJECTIVE Through mapping the researches that have been done to represent the spectrum of trichoscopic findings in AA and to identify the most characteristic patterns. METHODS Thirty-nine studies were eligible for the quantitative analysis. Meta-analysis and subgroup analysis were performed. RESULTS Thirty-nine studies (29 cross-sectional, five retrospective, two descriptive, one case series, one observational, and one cohort) with a total of 3204 patients were included. About 66.7% of the studies were from Asia, 25.6% from Europe, and 7.7% from Africa. The most characteristic trichoscopic findings of AA were as follows; yellow dots, black dots, broken hairs, short vellus hairs, and tapering hairs. CONCLUSION There is no single pathognomonic diagnostic trichoscopic finding in AA rather than a constellation of characteristic findings. The five most characteristic trichoscopic findings in AA are: yellow dots, black dots, broken hairs, short vellus hairs, and tapering hairs. Yellow dots and short vellus hairs considered the most sensitive clues for AA, while black dots and tapering hairs are the most specific ones. Furthermore, trichoscopy is a useful tool that allows monitoring of response during the treatment of AA. Treatment responded cases will show an increase in short vellus hairs, but loss of tapering hairs, broken hairs, and black dots, while yellow dots are the least responsive to the treatment.
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Affiliation(s)
| | - Adel Alsenaid
- Department of DermatologyCollege of Medicine, Shaqra UniversityDawadmiSaudi Arabia
- Division of DermatologyJohns Hopkins Aramco HealthcareDhahranSaudi Arabia
| | - Ghadah Alhetheli
- Division of Dermatology and Cutaneous SurgeryCollege of Medicine, Qassim UniversityBuraydahSaudi Arabia
| | - Ahmed Ibrahim Abd Elneam
- Department of Clinical Biochemistry, Department of Basic Medical SciencesCollege of Medicine, Shaqra UniversityDawadmiSaudi Arabia
- Molecular Genetics and Enzymology DepartmentHuman Genetics and Genome Research Institute, National Research CenterDokkiCairoEgypt
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Kinoshita-Ise M, Fukuyama M, Ohyama M. Recent Advances in Understanding of the Etiopathogenesis, Diagnosis, and Management of Hair Loss Diseases. J Clin Med 2023; 12:jcm12093259. [PMID: 37176700 PMCID: PMC10179687 DOI: 10.3390/jcm12093259] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/26/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023] Open
Abstract
Hair-loss diseases comprise heterogenous conditions with respective pathophysiology and clinicopathological characteristics. Major breakthroughs in hair follicle biology and immunology have led to the elucidation of etiopathogenesis of non-scarring alopecia (e.g., alopecia areata, AA) and cicatricial alopecia (e.g., lichen planopilaris, LPP). High-throughput genetic analyses revealed molecular mechanism underlying the disease susceptibility of hair loss conditions, such as androgenetic alopecia (AGA) and female pattern hair loss (FPHL). Hair loss attracted public interest during the COVID-19 pandemic. The knowledge of hair loss diseases is robustly expanding and thus requires timely updates. In this review, the diagnostic and measurement methodologies applied to hair loss diseases are updated. Of note, novel criteria and classification/scoring systems published in the last decade are reviewed, highlighting their advantages over conventional ones. Emerging diagnostic techniques are itemized with clinical pearls enabling efficient utilization. Recent advances in understanding the etiopathogenesis and management for representative hair diseases, namely AGA, FPHL, AA, and major primary cicatricial alopecia, including LPP, are comprehensively summarized, focusing on causative factors, genetic predisposition, new disease entity, and novel therapeutic options. Lastly, the association between COVID-19 and hair loss is discussed to delineate telogen effluvium as the predominating pathomechanism accounting for this sequela.
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Affiliation(s)
- Misaki Kinoshita-Ise
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo 181-8611, Japan
| | - Masahiro Fukuyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo 181-8611, Japan
| | - Manabu Ohyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo 181-8611, Japan
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Fukuyama M, Ito T, Ohyama M. Alopecia areata: Current understanding of the pathophysiology and update on therapeutic approaches, featuring the Japanese Dermatological Association guidelines. J Dermatol 2021; 49:19-36. [PMID: 34709679 DOI: 10.1111/1346-8138.16207] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 12/16/2022]
Abstract
Alopecia areata (AA) is a relatively common nonscarring hairloss disease characterized by an autoimmune response to anagen hair follicles (HFs). Accumulated evidence suggests that collapse of the HF immune privilege subsequent to triggering events, represented by viral infection, leads to autoimmune response in which autoreactive cytotoxic CD8+NKG2D+ T cells mainly target exposed HF autoantigens. AA had been recognized as type 1 inflammatory disease, but recent investigations have suggested some roles of type 2- and Th17-associated mediators in AA pathogenesis. The significance of psychological stress in AA pathogenesis is less emphasized nowadays, but psychological comorbidities, such as depression and anxiety, attract greater interest in AA management. In this regard, the disease severity may not solely be evaluated by the extent of hair loss. Use of trichoscopy markedly improved the resolution of the diagnosis and evaluation of the phase of AA, which is indispensable for the optimization of treatment. For the standardization of AA management, the establishment of guidelines/expert consensus is pivotal. Indeed, the Japanese Dermatological Association (JDA) and other societies and expert groups have published guidelines/expert consensus reports, which mostly recommend intralesional/topical corticosteroid administration and contact immunotherapy as first-line treatments, depending on the age, disease severity, and activity of AA. The uniqueness of the JDA guidelines can be found in their descriptions of intravenous corticosteroid pulse therapy, antihistamines, and other miscellaneous domestically conducted treatments. Considering the relatively high incidence of spontaneous regression in mild AA and its intractability in severe subsets, the importance of course observation is also noted. Evidenced-based medicine for AA is currently limited, however, novel therapeutic approaches, represented by JAK inhibitors, are on their way for clinical application. In this review, the latest understanding of the etiopathogenesis and pathophysiology, and update on therapeutic approaches with future perspectives are summarized for AA, following the current version of the JDA AA management guidelines.
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Affiliation(s)
- Masahiro Fukuyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Taisuke Ito
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Manabu Ohyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
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6
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Wada-Irimada M, Mizuashi M, Takahashi T, Tojo G, Onami K, Shido K, Otake E, Yusa S, Tanita K, Yamazaki E, Aiba S, Yamasaki K. A retrospective study evaluating the outcomes of high-dose methylprednisolone pulse therapy for 483 patients with moderate-to-severe alopecia areata. Br J Dermatol 2021; 185:1267-1269. [PMID: 34254294 DOI: 10.1111/bjd.20644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 11/29/2022]
Affiliation(s)
- M Wada-Irimada
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
| | - M Mizuashi
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
| | - T Takahashi
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
| | - G Tojo
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan.,Dermatology, South Miyagi Medical Center, Shibata, Miyagi, 989-1253, Japan
| | - K Onami
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
| | - K Shido
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
| | - E Otake
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
| | - S Yusa
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
| | - K Tanita
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
| | - E Yamazaki
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
| | - S Aiba
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
| | - K Yamasaki
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, 980-8574, Japan
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Kinoshita-Ise M, Sachdeva M, Martinez-Cabriales SA, Shear NH, Lansang P. Oral Methotrexate Monotherapy for Severe Alopecia Areata: A Single Center Retrospective Case Series. J Cutan Med Surg 2021; 25:490-497. [PMID: 33715460 DOI: 10.1177/1203475421995712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Although several therapeutic options have been suggested for alopecia areata (AA), none of them are consistently effective, thus making the management of severe or refractory cases challenging. Several studies have recently reported the usage of methotrexate (MTX) in AA; however, the pure effect of MTX monotherapy remains elusive. OBJECTIVE To evaluate efficacy and safety of oral methotrexate monotherapy for AA. METHODS We retrospectively reviewed the clinical course of AA patients including pediatric cases treated with MTX monotherapy. Their detailed clinical data including original severity of AA, final treatment outcome, the duration until the maximum response, and side effects, were assessed. Statistical analysis was performed to evaluate if the clinical factors including the duration of current alopecia, age, the presence of body hair loss, and sex were associated with treatment response. RESULTS All included patients had severe AA and failed standard therapies. Thirteen out of 15 cases demonstrated improvement during the monotherapy, and all responders demonstrated the maximum response within 1 year. Female patients had significantly better outcomes than male patients. Other factors did not significantly influence on the treatment outcome. None of the patients experienced side effects that were severe enough to terminate the treatment. CONCLUSIONS Our results support MTX monotherapy as a feasible option for severe AA patients who fail other standard therapies or for whom systemic corticosteroids are contraindicated.
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Affiliation(s)
- Misaki Kinoshita-Ise
- 71545 Division of Dermatology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Canada.,7938 Department of Medicine, University of Toronto, Toronto, Canada.,38103 Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Muskaan Sachdeva
- 7938 Department of Medicine, University of Toronto, Toronto, Canada
| | - Sylvia A Martinez-Cabriales
- 71545 Division of Dermatology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Canada.,7938 Department of Medicine, University of Toronto, Toronto, Canada.,12366 School of Medicine, Autonomous University of Nuevo Leon
| | - Neil H Shear
- 71545 Division of Dermatology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Canada.,7938 Department of Medicine, University of Toronto, Toronto, Canada
| | - Perla Lansang
- 71545 Division of Dermatology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Canada.,7938 Department of Medicine, University of Toronto, Toronto, Canada.,Section of Paediatric Dermatology, Department of Paediatric Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
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Sato Y, Kinoshita-Ise M, Fukuyama M, Yamazaki Y, Ohyama M. Development of a scoring system to predict outcomes of i.v. corticosteroid pulse therapy in rapidly progressive alopecia areata adopting digital image analysis of hair recovery. J Dermatol 2020; 48:301-309. [PMID: 33245174 DOI: 10.1111/1346-8138.15675] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/11/2020] [Accepted: 10/06/2020] [Indexed: 12/11/2022]
Abstract
Alopecia areata (AA) is a common autoimmune disease manifesting varying degrees of hair loss. Rapidly progressive AA (RP-AA) is a severe subtype of AA and often resistant to skin-directed treatments. i.v. corticosteroid pulse therapy has been applied for RP-AA; however, the treatment outcome can only become evaluable several months after the intervention, discomposing the patients. In this study, we attempted to develop a scoring system to predict treatment outcomes based on statistical correlations between newly identified predictors and the recovery rates calculated by digital image analysis. Thirty RP-AA patients (15 men and 15 women) who underwent pulse therapy and demonstrated total hair loss during the clinical course were included. The percentages of hair regrowth (%HR) at 6 months after the treatment were quantitatively calculated by image analysis software. The correlation between %HR and clinicopathological and immunological variables were statistically assessed. The analysis identified four confirmatory contributors including female sex (P = 0.015), absence of previous AA history (P = 0.02), lower peripheral blood eosinophil count (P = 0.02) and mild to moderate cell infiltration around the hair bulb (P = 0.034), together with a potential contributor, namely absence of atopic dermatitis in their medical history (P = 0.08). The scoring system was developed by double counting confirmatory variables and single counting a potential variable. Importantly, the scores obtained by this system demonstrated significant correlation with %HR (r = 0.61, P < 0.001). The usefulness of this scoring system was further validated by assessing additional 20 cases of RP-AA. When combined with a recently published algorithm for early detection of self-healing subset, the current scoring system may help strategize the therapeutic approach for RP-AA.
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Affiliation(s)
- Yohei Sato
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | | | - Masahiro Fukuyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Yoshimi Yamazaki
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Manabu Ohyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
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