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Luo X, Ni X, Zhi J, Jiang X, Bai R. Small molecule agents against alopecia: Potential targets and related pathways. Eur J Med Chem 2024; 276:116666. [PMID: 39002436 DOI: 10.1016/j.ejmech.2024.116666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/28/2024] [Accepted: 07/08/2024] [Indexed: 07/15/2024]
Abstract
Alopecia has emerged as a global concern, extending beyond the middle-aged and elderly population and increasingly affecting younger individuals. Despite its growing prevalence, the treatment options and effective drugs for alopecia remain limited due to the incomplete understanding of its underlying mechanisms. Therefore, it is urgent to explore the pathogenesis of alopecia and discover novel and safer therapeutic agents. This review provided an overview of the prevailing clinical disorders of alopecia, and the key pathways and targets involved in hair growth process. Additionally, it discusses FDA-approved drugs and clinical candidates for the treatment of alopecia, and explores small molecule compounds with anti-alopecia potential in the drug discovery phase. These endeavors are expected to provide researchers with valuable scientific insights and practical information for anti-alopecia drug discovery.
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Affiliation(s)
- Xinyu Luo
- School of Pharmacy, Hangzhou Normal University, Hangzhou, 311121, PR China; Key Laboratory of Elemene Class Anti-tumor Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Xinhua Ni
- School of Pharmacy, Hangzhou Normal University, Hangzhou, 311121, PR China; Key Laboratory of Elemene Class Anti-tumor Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Jia Zhi
- School of Pharmacy, Hangzhou Normal University, Hangzhou, 311121, PR China; Key Laboratory of Elemene Class Anti-tumor Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Xiaoying Jiang
- School of Pharmacy, Hangzhou Normal University, Hangzhou, 311121, PR China; Key Laboratory of Elemene Class Anti-tumor Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, PR China
| | - Renren Bai
- School of Pharmacy, Hangzhou Normal University, Hangzhou, 311121, PR China; Key Laboratory of Elemene Class Anti-tumor Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou, 311121, PR China.
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Zhao Y, Guo F, Guo M. Thyroid Dysfunction and Alopecia Areata: A Genetic Prediction Causality Analysis Study. Skin Res Technol 2024; 30:e70063. [PMID: 39331482 DOI: 10.1111/srt.70063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2024] [Revised: 08/30/2024] [Accepted: 09/03/2024] [Indexed: 09/29/2024]
Abstract
BACKGROUND Observational studies have suggested a correlation between alopecia areata (AA) and thyroid dysfunction (TD). However, the causal relationship between AA and TD remains uncertain. The purpose of this study is to investigate the causal relationship between these two conditions. Understanding the potential causal relationship between AA and TD is valuable for elucidating the pathogenesis of AA and for designing innovative methods to prevent and treat AA and its related complications. METHODS All data for this two-sample Mendelian randomization (MR) study were sourced from public databases. This study selected hypothyroidism, Hashimoto's thyroiditis, hyperthyroidism, subacute thyroiditis, and Graves' disease as exposure factors, with AA as the outcome variable. Data for hypothyroidism, Hashimoto's thyroiditis, hyperthyroidism, subacute thyroiditis, Graves' disease, and AA were obtained from related genome-wide association studies (GWAS). Various MR analysis methods such as inverse variance weighted (IVW), MR-Egger, and weighted median were utilized. Additionally, Cochrane's Q test was used to detect heterogeneity in MR results, and the MR-Egger intercept test and MR pleiotropy residual sum and outlier (MR-PRESSO) test were used to detect horizontal pleiotropy. A leave-one-out analysis was conducted to investigate the sensitivity of this association. RESULTS We found statistically significant genetic predictions of AA with hypothyroidism, Hashimoto's thyroiditis, and subacute thyroiditis (IVW OR = 1.4009815, 95% confidence interval [CI]: 1.1210399-1.750829; p = 0.003030698, OR = 1.396101, 95% CI: 1.030134-1.89208; p = 0.03144273, OR = 0.732702, 95% CI: 0.604812-0.887634; p = 0.001483368). Furthermore, tests for pleiotropy showed no evidence of pleiotropy, enhancing the credibility of the study results. Finally, the leave-one-out test demonstrated the stability and robustness of this association. CONCLUSION This study provides new evidence of a potential genetic link between thyroid issues and AA. By employing the two-sample MR method to eliminate confounding factors and reverse causation, unbiased results were obtained, confirming a causal relationship between hypothyroidism, Hashimoto's thyroiditis, subacute thyroiditis, and AA. This lays the foundation for further mechanistic studies and potential clinical applications. Future research should further explore the specific biological mechanisms between TD and the onset of AA.
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Affiliation(s)
- Yue Zhao
- Department of Dermatology, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Furong Guo
- Changzhi Medical College, Changzhi, China
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Chau CA, Sharma D, Ungar B. Patterns of misdiagnosis in adults with alopecia areata: an analysis using the NIH's All of Us database. Int J Dermatol 2024. [PMID: 39258846 DOI: 10.1111/ijd.17484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 08/12/2024] [Accepted: 08/26/2024] [Indexed: 09/12/2024]
Affiliation(s)
- Courtney A Chau
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Divija Sharma
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Benjamin Ungar
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Bazid HAS, Marae AH, Farag B, Abdallah RA. The value of immunohistochemical expression of SOX9 and CD34 in alopecia areata. J Immunoassay Immunochem 2024; 45:452-466. [PMID: 39041618 DOI: 10.1080/15321819.2024.2383676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
BACKGROUND Alopecia areata (AA), an immune-mediated disorder, is marked by temporary, nonscarring hair loss. The bulge area is protected from immune attacks by immune privilege; however, recent studies demonstrated immune cells infiltrating the bulge area. OBJECTIVE This study aims to investigate the immunohistochemical expression of the sex-determining region Y-box 9 (SOX9) and cluster of differentiation 34 (CD34) in AA patients as markers of hair follicle stem cells (HFSCs) and progenitor cells, respectively. METHODS Immunohistochemical staining of SOX9 and CD34 was applied on skin samples of 20 AA patients and 20 healthy controls. RESULTS SOX9 and CD34 were significantly lower in lesional samples of cases compared to perilesional and control skin biopsies. Furthermore, SOX9 level was negatively correlated with the severity of alopecia tool score (SALT score) among the studied AA patients. Moreover, lowered SOX9 expression was present in patients with recurrent attacks. CONCLUSIONS The significant reduction of stem cell markers (SOX9 and CD34) in our studied AA cases signifies the pathological affection of HFSCs and their progeny in AA. This is thought to cause a loss of competence in generating new hair in some AA cases, which needs to be validated in further research. LIMITATIONS OF THE STUDY This study has a small sample size.
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Affiliation(s)
- Heba A S Bazid
- Dermatology and Andrology Department, Faculty of Medicine, Menoufia University, Shebeen El-Kom, Egypt
| | - Alaa H Marae
- Dermatology and Andrology Department, Faculty of Medicine, Menoufia University, Shebeen El-Kom, Egypt
| | - Bassant Farag
- Dermatology and Andrology Department, Faculty of Medicine, Menoufia University, Shebeen El-Kom, Egypt
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Tsai TF, Huang YH, Wei CY, Ng KJ, Newson RS, Lee THH, Shen D, Wang BCM, Tang CH. Epidemiology, Treatment Patterns, and Healthcare Resource Utilization Study of Patients With Alopecia Areata in Taiwan's National Health Insurance Research Database. Value Health Reg Issues 2024; 43:101007. [PMID: 38865765 DOI: 10.1016/j.vhri.2024.101007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 04/19/2024] [Accepted: 05/01/2024] [Indexed: 06/14/2024]
Abstract
OBJECTIVES This study investigated the epidemiology, treatment patterns, and resource utilization in patients with alopecia areata (AA) in Taiwan using the National Health Insurance Research Database. AA severity was determined by treatment use and diagnostic codes in the year after enrollment (including corticosteroids, systemic immunosuppressants, topical immunotherapy, and phototherapy). METHODS The cross-sectional analysis was conducted to estimate the incidence and prevalence of AA from 2016 to 2020. For the longitudinal analysis, 2 cohorts were identified: mild/moderate and severe. The cohorts were matched based on age, gender, and comorbidities. Patients were enrolled upon their first claim with an AA diagnosis during the index period of 2017-2018. RESULTS The number of patients with AA increased from 3221 in 2016 to 3855 in 2020. The longitudinal analysis identified 1808 mild/moderate patients and 452 severe patients. Mild/moderate patients used higher levels of topical corticosteroids (82.41%) than severe patients (73.45%). Conversely, severe patients used more topical nonsteroids (41.81%) and systemic therapies (51.77%) than mild/moderate patients (0.44% and 16.15%, respectively). Oral glucocorticoids use was higher in severe patients (47.57%) relative to mild/moderate patients (14.88%), whereas the use of injectable forms was similar. The most used systemic immunosuppressants were methotrexate, cyclosporin, and azathioprine. Topical immunotherapy utilization decreased with subsequent treatment lines for severe patients. Treatment persistence at 6 months was low for all treatments. Severe patients had higher annual AA-related outpatient visits than the mild/moderate cohort. CONCLUSIONS These findings highlight the need for additional innovations and therapies to address the clinical and economic burden of AA.
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Affiliation(s)
- Tsen-Fang Tsai
- Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan
| | | | | | - Khai Jing Ng
- Eli Lilly and Company (Taiwan), Inc, Taipei, Taiwan
| | | | | | | | | | - Chao-Hsiun Tang
- School of Health Care Administration, Taipei Medical University, Taipei, Taiwan
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Zhang G, Huang X, Li H, Gong H, Zhou Y, Liu F. Relationship of Hypothyroidism with Alopecia Areata and Androgenetic Alopecia: Insights from a Two-Sample Mendelian Randomization Study. Clin Cosmet Investig Dermatol 2024; 17:1865-1874. [PMID: 39188772 PMCID: PMC11346484 DOI: 10.2147/ccid.s474168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Accepted: 08/19/2024] [Indexed: 08/28/2024]
Abstract
Background Hair loss is common in hypothyroidism patients. However, the link with alopecia areata (AA) and androgenetic alopecia (AGA) is unclear. Previous observational studies have presented completely opposite results. This study aims to causally link hypothyroidism with AA and AGA. Methods A two-sample Mendelian Randomization (MR) study, utilizing data from FinnGen Consortium, investigated the causal link between hypothyroidism and AA and AGA. We employed Inverse Variance Weighted (IVW), MR-Egger, Weighted Median, Simple Mode, and Weighted Mode to assess the risk association. Results The discovery samples included 13,429 hypothyroidism cases (94,436 controls), 767 alopecia areata cases (394,105 controls), and 220 androgenetic alopecia cases (219,249 controls). MR analysis showed a causal link between hypothyroidism and AA, with significant results from IVW (OR, 1.34; CI, 1.16-1.56; P = 0.0001), MR-Egger (OR, 1.56; CI, 1.09-2.23; P = 0.0240), and weighted median (OR, 1.34; CI, 1.06-1.69; P = 0.0140). However, no clear causal relationship was found between genetically predicted hypothyroidism and AGA risk (p > 0.05). Conclusion The results show hypothyroidism causally associated with AA onset, but not AGA. These findings address contentious issues in observational studies. Comprehensive thyroid function assessments are crucial for AA patients, emphasizing thorough clinical examinations' importance.
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Affiliation(s)
- Gongjie Zhang
- Department of Dermatology, Venereology and Cosmetology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| | - Xinlyu Huang
- Department of Dermatology, Venereology and Cosmetology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| | - Hanlin Li
- Department of Dermatology, Venereology and Cosmetology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| | - Huizi Gong
- Department of Dermatology, Venereology and Cosmetology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| | - Yabin Zhou
- Department of Dermatology, Beijing Children’s Hospital, Capital Medical University, National Centre for Children’s Health, Beijing, 100045, People’s Republic of China
| | - Fang Liu
- Department of Dermatology, Venereology and Cosmetology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
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Brown M, Williams A, Chilcott RP, Brady B, Lenn J, Evans C, Allen L, McAuley WJ, Beebeejaun M, Haslinger J, Beuttel C, Vieira R, Guidali F, Miranda M. Topically Applied Therapies for the Treatment of Skin Disease: Past, Present, and Future. Pharmacol Rev 2024; 76:689-790. [PMID: 38914467 DOI: 10.1124/pharmrev.123.000549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/26/2024] Open
Abstract
The purpose of this review is to summarize essential biological, pharmaceutical, and clinical aspects in the field of topically applied medicines that may help scientists when trying to develop new topical medicines. After a brief history of topical drug delivery, a review of the structure and function of the skin and routes of drug absorption and their limitations is provided. The most prevalent diseases and current topical treatment approaches are then detailed, the organization of which reflects the key disease categories of autoimmune and inflammatory diseases, microbial infections, skin cancers, and genetic skin diseases. The complexity of topical product development through to large-scale manufacturing along with recommended risk mitigation approaches are then highlighted. As such topical treatments are applied externally, patient preferences along with the challenges they invoke are then described, and finally the future of this field of drug delivery is discussed, with an emphasis on areas that are more likely to yield significant improvements over the topical medicines in current use or would expand the range of medicines and diseases treatable by this route of administration. SIGNIFICANCE STATEMENT: This review of the key aspects of the skin and its associated diseases and current treatments along with the intricacies of topical formulation development should be helpful in making judicious decisions about the development of new or improved topical medicines. These aspects include the choices of the active ingredients, formulations, the target patient population's preferences, limitations, and the future with regard to new skin diseases and topical medicine approaches.
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Affiliation(s)
- Marc Brown
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Adrian Williams
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Robert P Chilcott
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Brendan Brady
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Jon Lenn
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Charles Evans
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Lynn Allen
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - William J McAuley
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Mubinah Beebeejaun
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Jasmin Haslinger
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Claire Beuttel
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Raquel Vieira
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Florencia Guidali
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
| | - Margarida Miranda
- MLBT Investments and Consultancy, Aylesbury, United Kingdom (M.Br.); MedPharm Ltd, Guildford, United Kingdom (M.Br., B.B., C.E., J.H., F.G.); Reading School of Pharmacy, Reading, United Kingdom (A.W.); School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom (R.P.C., W.J.M.); MedPharm Ltd, Durham. North Carolina (J.L., L.A., C.B.); Medicine Development and Supply, GlaxoSmithKline R&D, Stevenage, United Kingdom (M.Be.); Department of Dermatology, CUF Tejo Hospital, Lisbon, Portugal (R.V.); Centro de Investigação Interdisciplinar Egas Moniz, Egas Moniz School of Health and Science, Monte de Caparica, Portugal (M.M.); and Department of Chemistry, Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal (M.M.)
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8
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Gao L, Li W, Song Q, Gao H, Chen M. The genetic link between thyroid dysfunction and alopecia areata: a bidirectional two-sample Mendelian randomization study. Front Endocrinol (Lausanne) 2024; 15:1440941. [PMID: 39205687 PMCID: PMC11349512 DOI: 10.3389/fendo.2024.1440941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 07/30/2024] [Indexed: 09/04/2024] Open
Abstract
Background Although descriptive studies have found an association between thyroid dysfunction (TD) and alopecia areata (AA), however, the causal relationship between TD and AA remains unclear. The purpose of this study is to investigate the causal relationship between the two and the specific directions. Methods We performed large-scale, two-sample Mendelian randomization (MR) analyses to examine whether there was an association between TD (such as Graves' disease (GD), Hashimoto's thyroiditis (HT), thyroid cancer (TC), thyroid stimulating hormone (TSH), thyrotropin-releasing hormone (TRH), etc.) and AA. Genome-wide association study (GWAS) summary statistics for TD and AA were from the IEU OpenGwas project. The inverse variance-weighted (IVW) method was used as the primary analysis method to evaluate the causality between TD and AA, supplemented by the weighted median, MR-Egger, simple mode and weighted mode. In addition, sensitivity analyses were performed to assess the reliability of the study results. Results Our study found that single nucleotide polymorphisms (SNPs) in HT (IVW OR = 1.396, 95% CI 1.030-1.892, P=0.031) and hypothyroidism (IVW OR = 1.431, 95% CI 1.138-1.799, P=0.002) significantly increased the risk of AA. Reverse MR analysis indicated that genetic susceptibility to AA (β=-0.029, 95%CI=-0.051 to -0.007, P=0.009) may be a risk for TRH. Positive MR analysis observed no statistically significant causal relationship between other TD and AA (IVW P>0.05). Reverse MR analysis also showed no statistically significant association between AA and other TD (IVW P>0.05) other than TRH. Furthermore, additional sensitivity analyses were performed, including a leave-one-out test, a heterogeneity test, and a pleiotropy test to assess the robustness of the results. Conclusions This study provides a very comprehensive analysis of the causal relationship between TD and AA, providing convincing genetic evidence to support the causal relationship between TD and alopecia areata. It reveals some causes of AA patients, which is of great significance for the management and treatment of AA patients.
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Affiliation(s)
- Le Gao
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Wenrui Li
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Qiang Song
- Department of Structural Heart Disease, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Hengxing Gao
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Mingwei Chen
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
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9
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Jeon JJ, Jung SW, Kim YH, Parisi R, Lee JY, Kim MH, Lee WS, Lee S. Global, regional and national epidemiology of alopecia areata: a systematic review and modelling study. Br J Dermatol 2024; 191:325-335. [PMID: 38332643 DOI: 10.1093/bjd/ljae058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 02/04/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND Alopecia areata (AA) is a chronic autoimmune disease that leads to a high psychiatric, economic and systemic disease burden. A comprehensive understanding of AA epidemiology is essential for evaluating healthcare source utilization; however, a systematic approach to summarizing epidemiological data on AA is lacking. OBJECTIVES To investigate systematically the global, regional and national incidence and prevalence of AA. METHODS A structured search was conducted using the databases MEDLINE, Embase, Cochrane Library, Web of Science, SciELO and Korean Journal Database from their date of inception to 4 October 2023. Studies that reported the prevalence or incidence of AA were included. We used a Bayesian hierarchical linear mixed model to analyse prevalence estimates. The primary outcomes of our study were the global, regional and national prevalence of physician-diagnosed AA for the overall population, for adults and for children. The incidence data were summarized descriptively. RESULTS In total, 88 studies from 28 countries were included in the analysis. The reported incidence of AA tended to be higher in adults aged 19-50 years, and this trend was consistent with its estimated prevalence. The reported prevalence in overall populations tended to be higher in men vs. women. The estimated lifetime prevalence rate of AA was 0.10% [95% credible interval (CrI) 0.03-0.39] in the general population worldwide, 0.12% (95% CrI 0.02-0.52) in adults and 0.03% (95% CrI 0.01-0.12) in children. The estimated prevalence of AA was highest in the Asian region and lowest in the African region. CONCLUSIONS In this study, 48% of the Global Burden of Disease regions had insufficient data on the prevalence or incidence of AA. Further studies are needed to provide epidemiological information on middle- and low-income countries. Our study may serve as a crucial reference in terms of healthcare policy decisions.
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Affiliation(s)
- Jae Joon Jeon
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Seung-Won Jung
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - You Hyun Kim
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Rosa Parisi
- Division of Informatics, Imaging and Data Sciences, School of Health Sciences, The University of Manchester, Manchester, UK
| | - Ju Yeong Lee
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Myung Ha Kim
- Yonsei Wonju Medical Library, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Won-Soo Lee
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Solam Lee
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
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10
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Ragaie MH, Mohammed SE, Shehata SS. Intralesional vitamin D3 versus intralesional triamcinolone acetonoid in patchy alopecia areata: a comparative clinical and dermoscopic study. J COSMET LASER THER 2024:1-5. [PMID: 39139085 DOI: 10.1080/14764172.2024.2389275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 03/29/2024] [Accepted: 08/02/2024] [Indexed: 08/15/2024]
Abstract
BACKGROUND Alopecia areata (AA) is a common autoimmune T-cell mediated non-scarring, form of hair loss. It affects people of all ages and sexes. AIM To compare the efficacy of intralesional vitamin D3 injection versus that of intralesional triamcinolone acetonide in the treatment of patchy alopecia areata. PATIENTS AND METHODS This clinical study was carried on 40 adult patients with patchy alopecia areata, the patients were categorized into two groups. Group I involved 20 patients who received 1 ml of intralesional injection of vitamin D3 (cholecalciferol aqueous preparation 200 000 IU/2 ml) every 4 weeks for a maximum of three sessions. Group II involved 20 patients who received 1 ml of intralesional injection of triamcinolone acetonide 40 mg/mL every 4 weeks for a maximum of three sessions. Clinical and trichoscopic evaluations were done at the baseline, each session and for 3 months after the last session. RESULTS There was no statistically significant difference between the two studied groups regarding the degree of clinical improvement (p = .8). A statistically significant reduction in AA specific trichoscopic signs was detected at the end of the sessions and after 3 months of follow-up in both groups, without any statistically significant difference between them. Also a statistically significant difference was found between both groups regarding the reported adverse effects with a significant better patient satisfaction encountered toward the intralesional vitamin D3 injection. CONCLUSION Intralesional vitamin D3 is a promising effective, simple, safe, and inexpensive, therapeutic modality for patchy AA.
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Affiliation(s)
- Maha H Ragaie
- Department of Dermatology, STD's and Andrology, Faculty of Medicine, Minia University, Minya, Al, Egypt
| | - Shimaa E Mohammed
- Department of Dermatology, STD's and Andrology, Faculty of Medicine, Minia University, Minya, Al, Egypt
| | - Shimaa S Shehata
- Department of Dermatology, STD's and Andrology, Faculty of Medicine, Minia University, Minya, Al, Egypt
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11
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Jang YH, Lee SS, Park DY, Lee Y, Kim DY, Park H, Shin HT, Kim JE, Shin K, Lee JH, Choi JW, Park BC, Kim BJ, Seo SH, Won CH, Park J, Kim MS, Kim SS, Lew BL, Huh CH, Kwon O, Lee YW, Kim MB. Korean Consensus Criteria for the Severity Classification of Alopecia Areata. Ann Dermatol 2024; 36:236-246. [PMID: 39082660 PMCID: PMC11291096 DOI: 10.5021/ad.24.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 08/03/2024] Open
Abstract
BACKGROUND A set of criteria for severity classification is essential in alopecia areata (AA). Currently, no guidelines are universally accepted for defining AA severity. OBJECTIVE This study aimed to establish a set of consensus criteria for classifying the severity of and identifying treatment refractoriness in AA. METHODS A preliminary draft of the definition for moderate-to-severe AA was crafted based on available evidence, and members of the Korean Hair Research Society (KHRS) subsequently endorsed the recommendation through an online survey. RESULTS In the first Delphi round, consensus was attained on 15 questions. After refining certain items in the second round, consensus was achieved on 23 out of 26 questions. The KHRS first defined AA severity using the severity of alopecia tool (SALT). SALT ≥50 was defined as severe, 20≤ SALT <50 as moderate, and SALT <20 as mild. Moderate AA was considered severe if it meets one or more of the following criteria: dermatology life quality index >10, presence of accompanying eyebrow or eyelash loss, positive hair loss activity, or treatment-refractory AA. CONCLUSION These consensus criteria can help clinicians accurately diagnose AA, provide appropriate treatment, and monitor its progression.
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Affiliation(s)
- Yong Hyun Jang
- Department of Dermatology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Seung Soo Lee
- Department of Dermatology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Do Young Park
- Department of Dermatology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Young Lee
- Department of Dermatology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Do-Young Kim
- Department of Dermatology, Yonsei University College of Medicine, Seoul, Korea
| | - Hyunsun Park
- Department of Dermatology, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Hyun-Tae Shin
- Department of Dermatology, Inha University College of Medicine, Incheon, Korea
| | - Jung Eun Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kihyuk Shin
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - Ji Hae Lee
- Department of Dermatology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Jee Woong Choi
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Byung Choel Park
- Department of Dermatology, Dankook University College of Medicine, Cheonan, Korea
| | - Beom Joon Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Soo Hong Seo
- Department of Dermatology, Korea University College of Medicine, Seoul, Korea
| | - Chong Hyun Won
- Department of Dermatology, University of Ulsan School of Medicine, Seoul, Korea
| | - Jin Park
- Department of Dermatology, Jeonbuk National University Medical School, Jeonju, Korea
| | - Min Sung Kim
- Department of Dermatology, Chosun University College of Medicine, Gwangju, Korea
| | - Sang Seok Kim
- Department of Dermatology, Hallym University College of Medicine, Seoul, Korea
| | - Bark-Lynn Lew
- Department of Dermatology, Kyung Hee University School of Medicine, Seoul, Korea
| | - Chang-Hun Huh
- Department of Dermatology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Ohsang Kwon
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea
| | - Yang Won Lee
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea.
| | - Moon-Bum Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.
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12
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Cho SW, Malick H, Kim SJ, Grattoni A. Advances in Skin-on-a-Chip Technologies for Dermatological Disease Modeling. J Invest Dermatol 2024; 144:1707-1715. [PMID: 38493383 DOI: 10.1016/j.jid.2024.01.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/19/2024] [Accepted: 01/29/2024] [Indexed: 03/18/2024]
Abstract
Skin-on-a-chip (SoC) technologies are emerging as a paradigm shift in dermatology research by replicating human physiology in a dynamic manner not achievable by current animal models. Although animal models have contributed to successful clinical trials, their ability to predict human outcomes remains questionable, owing to inherent differences in skin anatomy and immune response. Covering areas including infectious diseases, autoimmune skin conditions, wound healing, drug toxicity, aging, and antiaging, SoC aims to circumvent the inherent disparities created by traditional models. In this paper, we review current SoC technologies, highlighting their potential as an alternative to animal models for a deeper understanding of complex skin conditions.
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Affiliation(s)
- Seo Won Cho
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas, USA; Texas A&M University School of Medicine, College Station, Texas, USA
| | - Hamza Malick
- Texas A&M University School of Medicine, College Station, Texas, USA
| | - Soo Jung Kim
- Department of Dermatology, Baylor College of Medicine, Houston, Texas, USA
| | - Alessandro Grattoni
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas, USA; Department of Surgery, Houston Methodist Hospital, Houston, Texas, USA; Department of Radiation Oncology, Houston Methodist Hospital, Houston, Texas, USA.
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13
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Sun C, Ding H, Zhang L, Wang J, Su M. Co-regulatory mechanisms and potential markers of oxidative stress-related genes in vitiligo and alopecia areata. Skin Res Technol 2024; 30:e70001. [PMID: 39177325 PMCID: PMC11342463 DOI: 10.1111/srt.70001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Accepted: 08/05/2024] [Indexed: 08/24/2024]
Abstract
BACKGROUND The specific role of oxidative stress (OS) in vitiligo and alopecia areata (AA) remains unclear. The aim of this study was to analyze and identify the key markers of OS in vitiligo and AA by bioinformatics. METHODS We obtained vitiligo and AA datasets from gene expression omnibus (GEO) database. The difference-expressed genes of vitiligo and AA were identified by differential analysis, and the functions of difference-expressed genes were identified by gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Gene Set Enrichment Analysis (GSEA) enrichment analysis. Subsequently, Veen package was used to obtain the intersection genes of OS-related genes with vitiligo and AA. Finally, we used CIBERSORT to assess the infiltration of immune cells in vitiligo and AA. RESULTS Through enrichment analysis, we found that vitiligo and AA were mainly enriched in cell cycle and cell adhesion molecular channels. We identified KLB and EIF3C as key genes in OS regulation of vitiligo and AA, and found that KLB and EIF3C participate in disease progression by regulating T cells and neutrophils. CONCLUSIONS According to our findings, KLB and EIF3C play a crucial role in the progression and development of vitiligo and AA, which have been identified as biomarkers and target for early diagnosis of patients.
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Affiliation(s)
- Chao Sun
- Department of DermatologyShenzhen Qianhai Shekou Free Trade Zone HospitalShenzhenChina
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhenChina
| | - Honghua Ding
- Department of DermatologyShenzhen Qianhai Shekou Free Trade Zone HospitalShenzhenChina
| | - Li Zhang
- Department of DermatologyShenzhen Qianhai Shekou Free Trade Zone HospitalShenzhenChina
| | - Junling Wang
- Department of DermatologyShenzhen Qianhai Shekou Free Trade Zone HospitalShenzhenChina
| | - Mengyun Su
- Department of DermatologyRenmin Hospital of Wuhan UniversityWuhanChina
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14
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Kwon O, Wallace M, Messina P, Szende A, Choi JW, Newson RS, Koo DH, Lee JH. Treatment patterns and healthcare resource utilization among patients with alopecia areata: A real-world chart review in South Korea. J Dermatol 2024. [PMID: 39044416 DOI: 10.1111/1346-8138.17380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 05/28/2024] [Accepted: 06/27/2024] [Indexed: 07/25/2024]
Abstract
Alopecia areata (AA) is a clinically heterogeneous, immune-mediated, non-scarring hair loss disorder. This real-world chart review sought to characterize treatment patterns and healthcare resource use among patients with severe AA in South Korea. A web-based chart review of 40 dermatologists was conducted in which the medical charts of 151 adult patients diagnosed with severe AA between May 2019 and April 2021 were reviewed. Anonymized data on patient characteristics, treatment patterns, healthcare resource use, and clinical outcomes were extracted from the date of severe disease diagnosis until the date of data collection (September-November 2022). Sixty-six percent of patients were diagnosed with severe disease at initial presentation, while 34% were re-classed to severe during the disease course. Mean estimated patient age at the time of diagnosis of severe AA was 37.1 (range 22-68) years. Fifty-three percent of patients were male. Most patients (93.4%) received pharmacological treatment for their condition; 45.5% received ≥2 lines of treatment with a mean duration of 24 months. First-line treatment discontinuation due to lack of efficacy occurred in 46.0% of cases. Hair regrowth occurred in 71.0% of patients, 59.2% of whom experienced major regrowth (≥60%) during the follow-up period. Median (95% confidence interval) time to regrowth was 13.7 (11.0-20.6) months. Treatment visit rates per person-year ranged from two (phototherapy) to 10 (topical treatment), dermatologist visits occurred at a rate of 12.9 per person-year and 6.0% of patients were hospitalized due to alopecia areata. The majority of hospitalizations were related to treatment and occurred in patients who received pulse systemic corticosteroid therapy. The patient and economic burden of AA in South Korea is high and there remains a critical unmet need among patients with severe AA with respect to the effectiveness of commonly used treatment strategies.
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Affiliation(s)
- Ohsang Kwon
- College of Medicine, Seoul National University, Seoul, Korea
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15
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Burgos-Blasco P, Gonzalez-Cantero A, Hermosa-Gelbard A, Jiménez-Cahue J, Buendía-Castaño D, Berna-Rico E, de Aragon CAJ, Vañó-Galván S, Saceda-Corralo D. Subclinical Atherosclerosis in Alopecia Areata: Usefulness of Arterial Ultrasound for Disease Diagnosis and Analysis of Its Relationship with Cardiometabolic Parameters. J Clin Med 2024; 13:4264. [PMID: 39064304 PMCID: PMC11278048 DOI: 10.3390/jcm13144264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/09/2024] [Accepted: 06/14/2024] [Indexed: 07/28/2024] Open
Abstract
Background/Objectives: Chronic systemic inflammation is a risk factor that increases the development of atherosclerosis and predisposes to cardiovascular diseases (CVDs). The systemic inflammatory profile of alopecia areata (AA) regarding IFNγ and Th1 cytokine dysregulation has previously been described, suggesting an increased incidence of CVDs in this population. No previous studies investigated the possible relationship between atherosclerosis and AA by cardiovascular imaging techniques. To determine the prevalence, distribution and burden of subclinical atherosclerosis in AA. METHODS We conducted a case-control study in 62 participants, including 31 patients with severe AA (SALT > 75) and 31 healthy controls, matched for age, sex and body mass index (BMI). The participants underwent a detailed history assessment and were subjected to the measurement of weight, height, abdominal circumference and blood pressure. A fasting blood sample was also collected. Subclinical atherosclerosis was evaluated by ultrasonography of the bilateral femoral and carotid arteries. RESULTS The AA patients had an increased prevalence of subclinical atherosclerosis (54.7%) compared to the healthy controls (22.6%, p = 0.010). The prevalence of atheroma plaques was significantly higher in the carotid arteries (41.90% vs. 12.9%, p = 0.009), while no significant differences were found in femoral plaque prevalence. The AA patients with atherosclerotic plaques were older (p < 0.001) and had a longer time since AA diagnosis (p = 0.11) and increased serum levels of glycated hemoglobin (p = 0.029) and triglycerides (p = 0.009). In a regression analysis, duration of disease and neutrophil/lymphocyte ratio were the main predictors of atherosclerosis. CONCLUSIONS AA patients have an increased prevalence of carotid subclinical atherosclerosis. The duration of AA, systemic inflammation and insulin resistance appear to play a role in the development of subclinical atherosclerosis in this population.
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Affiliation(s)
- Patricia Burgos-Blasco
- Servicio de Dermatología, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Carretera Colmenar Viejo km 9.100, 28034 Madrid, Spain; (A.H.-G.); (J.J.-C.); (D.B.-C.); (E.B.-R.); (C.A.-J.d.A.); (S.V.-G.); (D.S.-C.)
- Hair Disorders Unit, Grupo Pedro Jaén, 28006 Madrid, Spain
| | - Alvaro Gonzalez-Cantero
- Servicio de Dermatología, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Carretera Colmenar Viejo km 9.100, 28034 Madrid, Spain; (A.H.-G.); (J.J.-C.); (D.B.-C.); (E.B.-R.); (C.A.-J.d.A.); (S.V.-G.); (D.S.-C.)
- Faculty of Medicine, Universidad Francisco de Vitoria, 28223 Pozuelo de Alarcón, Spain
| | - Angela Hermosa-Gelbard
- Servicio de Dermatología, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Carretera Colmenar Viejo km 9.100, 28034 Madrid, Spain; (A.H.-G.); (J.J.-C.); (D.B.-C.); (E.B.-R.); (C.A.-J.d.A.); (S.V.-G.); (D.S.-C.)
- Hair Disorders Unit, Grupo Pedro Jaén, 28006 Madrid, Spain
| | - Juan Jiménez-Cahue
- Servicio de Dermatología, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Carretera Colmenar Viejo km 9.100, 28034 Madrid, Spain; (A.H.-G.); (J.J.-C.); (D.B.-C.); (E.B.-R.); (C.A.-J.d.A.); (S.V.-G.); (D.S.-C.)
- Hair Disorders Unit, Grupo Pedro Jaén, 28006 Madrid, Spain
| | - Diego Buendía-Castaño
- Servicio de Dermatología, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Carretera Colmenar Viejo km 9.100, 28034 Madrid, Spain; (A.H.-G.); (J.J.-C.); (D.B.-C.); (E.B.-R.); (C.A.-J.d.A.); (S.V.-G.); (D.S.-C.)
- Hair Disorders Unit, Grupo Pedro Jaén, 28006 Madrid, Spain
| | - Emilio Berna-Rico
- Servicio de Dermatología, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Carretera Colmenar Viejo km 9.100, 28034 Madrid, Spain; (A.H.-G.); (J.J.-C.); (D.B.-C.); (E.B.-R.); (C.A.-J.d.A.); (S.V.-G.); (D.S.-C.)
| | - Carlota Abbad-Jaime de Aragon
- Servicio de Dermatología, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Carretera Colmenar Viejo km 9.100, 28034 Madrid, Spain; (A.H.-G.); (J.J.-C.); (D.B.-C.); (E.B.-R.); (C.A.-J.d.A.); (S.V.-G.); (D.S.-C.)
| | - Sergio Vañó-Galván
- Servicio de Dermatología, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Carretera Colmenar Viejo km 9.100, 28034 Madrid, Spain; (A.H.-G.); (J.J.-C.); (D.B.-C.); (E.B.-R.); (C.A.-J.d.A.); (S.V.-G.); (D.S.-C.)
- Hair Disorders Unit, Grupo Pedro Jaén, 28006 Madrid, Spain
- Departamento de Biología de Sistemas, Facultad de Medicina, Universidad de Alcalá, 28801 Alcalá de Henares, Spain
| | - David Saceda-Corralo
- Servicio de Dermatología, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Carretera Colmenar Viejo km 9.100, 28034 Madrid, Spain; (A.H.-G.); (J.J.-C.); (D.B.-C.); (E.B.-R.); (C.A.-J.d.A.); (S.V.-G.); (D.S.-C.)
- Hair Disorders Unit, Grupo Pedro Jaén, 28006 Madrid, Spain
- Departamento de Biología de Sistemas, Facultad de Medicina, Universidad de Alcalá, 28801 Alcalá de Henares, Spain
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Ferreira BR, Katamanin OM, Jafferany M, Misery L. Psychodermatology of Chronic Pruritus: An Overview of the Link Between Itch and Distress. Dermatol Ther (Heidelb) 2024; 14:1799-1809. [PMID: 38914907 PMCID: PMC11265050 DOI: 10.1007/s13555-024-01214-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 06/10/2024] [Indexed: 06/26/2024] Open
Abstract
Chronic pruritus (CP) is defined as an unpleasant sensation causing a desire to scratch and lasting > 6 weeks. It has a multifactorial etiology but is more frequently associated with chronic inflammatory dermatoses and systemic disorders. Psychogenic pruritus and neurological disorders are other less common etiologies, while, in some patients, it is idiopathic. CP appears to be processed by non-histaminergic pathway, contributing to its complexity and therapeutic challenge. Moreover, regardless of the etiology, it is multidimensional, including cognitive, motivational and affective components. There is a close link between psychological distress and pruritus, with particular clinical expression in chronic inflammatory dermatoses, involving the activation of the hypothalamic-pituitary-adrenal axis (and its cutaneous equivalent), the sympathetic nervous system, the release of hormones and peptides, the role of immune cells (T and B cells, macrophages) and immune-related cells in the skin (mast cells, dendritic cells and keratinocytes). Moreover, there is strong evidence that psychological factors influence the experience of pruritus. CP can also cause psychiatric disorders, including but not limited to anxiety and depression, and also lead to significant quality of life (QoL) impairment. Thereby, although a psychodermatological assessment should ideally be carried out in the context of a specific psychodermatology consultation, a brief mental health assessment could be part of the general dermatological approach to these patients. Considering that mental health, QoL and pruritus are closely linked, psychotherapeutic interventions and/or psychotropic drugs should thus be considered in some patients as an adjunct to the pharmacological treatment of CP.
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Affiliation(s)
- Bárbara R Ferreira
- Univ Brest, LIEN, Brest, France.
- Department of Dermatology, Algarve University Hospital Centre, ULS Algarve, Faro, Portugal.
| | - Olivia M Katamanin
- Chicago Medical School, Rosalind Franklin University, North Chicago, IL, USA
| | - Mohammad Jafferany
- College of Medicine/CMU Medical Education Partners Saginaw, Central Michigan University, Mt Pleasant, MI, USA
| | - Laurent Misery
- Univ Brest, LIEN, Brest, France
- Department of Dermatology, Brest University Hospital, Brest, France
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17
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Komurcugil I, Karaosmanoglu N. Evaluation of Serum Inflammatory Markers and Their Relationship to Treatment Response in Alopecia Areata Patients. Dermatol Pract Concept 2024; 14:dpc.1403a193. [PMID: 39122487 PMCID: PMC11313963 DOI: 10.5826/dpc.1403a193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/27/2024] [Indexed: 08/12/2024] Open
Abstract
INTRODUCTION Alopecia areata is a type of non-scarring alopecia which is thought to be associated with T-cell mediated immune response. OBJECTIVE This study aimed to compare the levels of serum inflammatory markers before and after treatment in patients with alopecia areata. The study explored the utility of the systemic immune-inflammation index (SII) in assessing the severity and treatment response in alopecia areata patients. METHODS The study included 60 alopecia areata patients and 40 control patients diagnosed with tinea unguium, aged between 18 and 65 years. Sociodemographic characteristics such as age, sex, and medical history were recorded for both groups. For alopecia areata patients, serum inflammatory markers were recorded before and at the third month of treatment. Serum inflammatory markers for the control group were also recorded. Furthermore, the Severity of Alopecia Tool (SALT) score was calculated for alopecia areata patients before and at the third month of treatment. RESULTS The alopecia areata group had a significantly higher neutrophil-lymphocyte ratio, mean platelet volume, and SII values compared to the control group, while high-density lipoprotein (HDL) values were significantly lower. Serum inflammatory markers, assessed at the third month of treatment in the alopecia areata group, were lower, and HDL values were significantly higher compared to pre-treatment levels. A statistically significant correlation was observed between disease severity and the SII. CONCLUSION The SII is a cost-effective marker that can be utilized in assessing the severity of alopecia areata and treatment response.
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Affiliation(s)
- Icim Komurcugil
- Health Sciences University, Ankara Training and Research Hospital, Ankara, Turkey
| | - Nermin Karaosmanoglu
- Health Sciences University, Ankara Training and Research Hospital, Ankara, Turkey
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18
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Song CJ, Riley CA, Wilkison BD, Cho S. A Review of JAK Inhibitors for Treatment of Alopecia Areata in the Military Health Care System. Mil Med 2024:usae292. [PMID: 38850223 DOI: 10.1093/milmed/usae292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/23/2024] [Accepted: 05/22/2024] [Indexed: 06/10/2024] Open
Abstract
INTRODUCTION Alopecia areata (AA) is a disease that manifests as patchy hair loss on the scalp and other parts of the body; severe disease may result in disfigurement, functional impairment, and significant psychological distress. This condition is understood to be caused by autoimmunity to the hair follicle and subsequent arrest of hair growth. New medications, baricitinib and ritlecitinib, belong to the Janus kinase (JAK) inhibitor family and are among the first FDA-approved treatments for severe AA. In this manuscript, we aim to answer the question: What treatment options exist for AA in the military health care system (MHS)? In doing so, we review the pathogenesis, physical and psychosocial impact of AA, conventional treatment of AA, and the efficacy and safety of baricitinib and ritlecitinib. METHODS A literature search was performed using PubMed, Embase, and Ovid for the history and pathogenesis of AA, psychosocial impact of disease, functional impairments, and current treatments. Keywords "alopecia areata," "current therapy for alopecia areata," "pathogenesis alopecia areata," "baricitinib," "ritlecitinib," "JAK inhibitor alopecia," "JAK inhibitor safety," "baricitinib efficacy," "alopecia eyelash," "alopecia nails," and "psychosocial impact of alopecia" were used for the search. The TRICARE manual was searched for guidelines applicable to the treatment of AA, DoD Instruction 6130.03 Volume 2 for medical standards for military service, and the U.S. Central Command Modification 15 for fitness of deployment to Central Command area of operations. RESULTS Traditional treatments such as intralesional steroids may be effective for some patients, but difficulty lies in controlling extensive or refractory disease. Janus kinase inhibitors, baricitinib and ritlecitinib, are found effective at improving severe refractory disease; baricitinib induced hair regrowth in 32.6% more patients than placebo, and ritlecitinib was found to be superior to placebo by at least 24%. Currently, there is no coverage for therapeutic treatment of hair growth in the MHS. Additionally, military members are disqualified for continued service if they require immunomodulator medications such as baricitinib and ritlecitinib. Those on immunomodulators are unable to deploy worldwide. CONCLUSIONS Baricitinib and ritlecitinib are effective treatments for widespread, progressive, and refractory AA. Although JAK inhibitors demonstrate improved effectiveness compared to non-immunomodulator treatments, their use in the MHS for this purpose is limited.
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Affiliation(s)
- Christian J Song
- School of Medicine, Uniformed Services University of Health Sciences, Bethesda, MD 20814, USA
| | - Christopher A Riley
- Department of Medicine, Dermatology Service, Eisenhower Army Medical Center, Fort Gordon, GA 30905, USA
| | - Bart D Wilkison
- Department of Dermatology, Lyster Army Health Clinic, Fort Novosel, AL 36362, USA
| | - Sunghun Cho
- Department of Dermatology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
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19
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Fang H, Zhang F, Lin W, Jiang Y, Liu Q, Yang D. Case report: Sequential therapy with dupilumab and baricitinib for severe alopecia areata with atopic dermatitis in children. Front Immunol 2024; 15:1395288. [PMID: 38903518 PMCID: PMC11187300 DOI: 10.3389/fimmu.2024.1395288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 05/21/2024] [Indexed: 06/22/2024] Open
Abstract
An 8-year-old female child presented with patchy hair loss for 1 year, accompanied by eyebrow loss for 6 months. Microscopic examination of the hair confirmed the features of active stage alopecia areata, with a Severity of Alopecia Tool (SALT) score of 70%. The diagnosis was severe alopecia areata. The patient had a history of atopic dermatitis since infancy, with recurrent episodes of scattered papules and pruritus for 8 years. Initial treatment involved subcutaneous injections of dupilumab 300mg every 2 weeks for 6 months, resulting in a reduction of SALT score to 20% and improvement of atopic dermatitis symptoms. Discontinuation of Dupilumab and initiation of daily oral Baricitinib at a dose of 2mg for a duration of 5 months. According to the SALT score evaluation, the severity of hair loss was less than 10% and there was significant regrowth of hair. No significant adverse reactions were observed during the treatment period.
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Affiliation(s)
- Huijuan Fang
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Fengchuan Zhang
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Wenjun Lin
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yuqi Jiang
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Qingwu Liu
- Dermatology Department, China-Japan Friendship Hospital, Beijing, China
| | - Dingquan Yang
- Dermatology Department, China-Japan Friendship Hospital, Beijing, China
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20
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Piraccini BM, Rapparini L, Quadrelli F, Alessandrini A, Bruni F, Cedirian S, Pampaloni F, Marcelli E, Bortolani B, Giampieri E, Gallo G, Torrelli F, Sciamarrelli N, Quaglino P, Tomasini C, Barruscotti S, Ambrogio F, Foti C, Picciallo M, Caro G, Rossi A, Pellacani G, Ala L, Acri MC, Diluvio L, Matteini E, Bianchi L, Argenziano G, Babino G, Fulgione E, Gnesotto L, Sechi A, Naldi L, Tassone F, Peris K, Caldarola G, Caposiena Caro RD, Bazzacco G, Zalaudek I, Vastarella M, Cantelli M, Patrì A, Dall'oglio F, Lacarrubba F, Micali G, Fraghì A, Boccaletti V, Marzano AV, Barbareschi M, Silvio M, Vagnozzi E, Fargnoli MC, Caponio C, Atzori L, Sanna S, Anedda J, Feliciani C, DE Felici Del Giudice MB, Scandagli I, Prignano F, Rongioletti F, Podo Brunetti A, Bigotto GD, Offidani AM, Simonetti O, Lembo S, Raimondo A, Balestri R, Ioris T, Gisondi P, Bellinato F, Trovato E, Cinotti E, Papini M, Cicoletti M, Corazza M, Starace M. Italian National Registry of Alopecia Areata: an epidemiological study of 699 Italian patients. Ital J Dermatol Venerol 2024; 159:336-343. [PMID: 38808459 DOI: 10.23736/s2784-8671.24.07934-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
BACKGROUND Alopecia areata (AA) is an organ-specific autoimmune disease that affects the hair follicles of the scalp and the rest of the body causing hair loss. Due to the unpredictable course of AA and the different degrees of severity of hair loss, only a few well-designed clinical studies with a low number of patients are available. Also, there is no specific cure, but topical and systemic anti-inflammatory and immune system suppressant drugs are used for treatment. The need to create a global registry of AA, comparable and reproducible in all countries, has recently emerged. An Italian multicentric electronic registry is proposed as a model to facilitate and guide the recording of epidemiological and clinical data and to monitor the introduction of new therapies in patients with AA. METHODS The aim of this study was to evaluate the epidemiological data of patients with AA by collecting detailed information on the course of the disease, associated diseases, concomitant and previous events, and the clinical response to traditional treatments. Estimate the impact on the quality of life of patients. RESULTS The creation of the National Register of AA has proven to be a valid tool for recording, with a standardized approach, epidemiological data, the trend of AA, response to therapies and quality of life. CONCLUSIONS AA is confirmed as a difficult hair disease to manage due to its unpredictable course and, in most cases, its chronic-relapsing course, capable of having a significant impact on the quality of life of patients.
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Affiliation(s)
- Bianca Maria Piraccini
- Unit of Dermatology, IRCCS University Hospital of Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Luca Rapparini
- Unit of Dermatology, IRCCS University Hospital of Bologna, Bologna, Italy -
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Federico Quadrelli
- Unit of Dermatology, IRCCS University Hospital of Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Aurora Alessandrini
- Unit of Dermatology, IRCCS University Hospital of Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Francesca Bruni
- Unit of Dermatology, IRCCS University Hospital of Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Stephano Cedirian
- Unit of Dermatology, IRCCS University Hospital of Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Francesca Pampaloni
- Unit of Dermatology, IRCCS University Hospital of Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Emanuela Marcelli
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Barbara Bortolani
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Enrico Giampieri
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Giuseppe Gallo
- Section of Dermatology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Francesca Torrelli
- Section of Dermatology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Nadia Sciamarrelli
- Section of Dermatology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Pietro Quaglino
- Section of Dermatology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Carlo Tomasini
- Dermatology Clinic, Policlinico San Matteo IRCCS Foundation, Pavia, Italy
- Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Stefania Barruscotti
- Dermatology Clinic, Policlinico San Matteo IRCCS Foundation, Pavia, Italy
- Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Francesca Ambrogio
- Section of Dermatology and Venereology, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), Aldo Moro University of Bari, Bari, Italy
| | - Caterina Foti
- Section of Dermatology and Venereology, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), Aldo Moro University of Bari, Bari, Italy
| | - Michele Picciallo
- Section of Dermatology and Venereology, Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), Aldo Moro University of Bari, Bari, Italy
| | - Gemma Caro
- Unit of Dermatology, Department of Clinical Internal Anesthesiologic Cardiovascular Sciences, Sapienza University, Rome, Italy
| | - Alfredo Rossi
- Unit of Dermatology, Department of Clinical Internal Anesthesiologic Cardiovascular Sciences, Sapienza University, Rome, Italy
| | - Giovanni Pellacani
- Unit of Dermatology, Department of Clinical Internal Anesthesiologic Cardiovascular Sciences, Sapienza University, Rome, Italy
| | - Lorenzo Ala
- Unit of Dermatology, Department of Clinical Internal Anesthesiologic Cardiovascular Sciences, Sapienza University, Rome, Italy
- Unit of Dermatology, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Maria Cristina Acri
- Unit of Dermatology, Department of Clinical Internal Anesthesiologic Cardiovascular Sciences, Sapienza University, Rome, Italy
| | - Laura Diluvio
- Unit of Dermatology, Tor Vergata Policlinic Foundation, Tor Vergata University of Rome, Rome, Italy
| | - Enrico Matteini
- Unit of Dermatology, Tor Vergata Policlinic Foundation, Tor Vergata University of Rome, Rome, Italy
| | - Luca Bianchi
- Unit of Dermatology, Tor Vergata Policlinic Foundation, Tor Vergata University of Rome, Rome, Italy
| | - Giuseppe Argenziano
- Unit of Dermatology, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Graziella Babino
- Unit of Dermatology, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Elisabetta Fulgione
- Unit of Dermatology, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Laura Gnesotto
- Unit of Dermatology, Department of Medicine DIMED, University of Padua, Padua, Italy
| | - Andrea Sechi
- Unit of Dermatology, San Bortolo Hospital, Vicenza, Italy
| | - Luigi Naldi
- Unit of Dermatology, San Bortolo Hospital, Vicenza, Italy
| | - Francesco Tassone
- Unit of Dermatology, Department of Medical and Surgical Sciences, IRCCS A. Gemelli University Polyclinic Foundation, Rome, Italy
- Unit of Dermatology, Department of Medicine and Traslational Surgery, Sacred Heart Catholic Univerity, Rome, Italy
| | - Ketty Peris
- Unit of Dermatology, Department of Medical and Surgical Sciences, IRCCS A. Gemelli University Polyclinic Foundation, Rome, Italy
- Unit of Dermatology, Department of Medicine and Traslational Surgery, Sacred Heart Catholic Univerity, Rome, Italy
| | - Giacomo Caldarola
- Unit of Dermatology, Department of Medical and Surgical Sciences, IRCCS A. Gemelli University Polyclinic Foundation, Rome, Italy
- Unit of Dermatology, Department of Medicine and Traslational Surgery, Sacred Heart Catholic Univerity, Rome, Italy
| | | | - Giulia Bazzacco
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
| | - Iris Zalaudek
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
| | - Maria Vastarella
- Unit of Dermatology, Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Mariateresa Cantelli
- Unit of Dermatology, Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Angela Patrì
- Unit of Dermatology, Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | | | | | | | | | | | - Angelo Valerio Marzano
- Unit of Dermatology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Mauro Barbareschi
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Martina Silvio
- Unit of Dermatology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Emanuele Vagnozzi
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
- Unit of Dermatology, San Salvatore Hospital, L'Aquila, Italy
| | - Maria Concetta Fargnoli
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
- Unit of Dermatology, San Salvatore Hospital, L'Aquila, Italy
| | - Chiara Caponio
- Unit of Dermatology, San Salvatore Hospital, L'Aquila, Italy
| | - Laura Atzori
- Unit of Dermatology, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Silvia Sanna
- Unit of Dermatology, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Jasmine Anedda
- Unit of Dermatology, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Claudio Feliciani
- Unit of Dermatology, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | | | - Ilaria Scandagli
- Section of Dermatology, Department of Health Sciences, University of Florence, Florence, Italy
| | - Francesca Prignano
- Section of Dermatology, Department of Health Sciences, University of Florence, Florence, Italy
| | - Franco Rongioletti
- Dermatologic Clinic, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Antonio Podo Brunetti
- Dermatologic Clinic, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Gianmarco D Bigotto
- Dermatologic Clinic, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | | | - Oriana Simonetti
- Dermatologic Clinic, Polytechnic University of Marche, Ancona, Italy
| | - Serena Lembo
- Department of Medicine, Surgery and Odontology, Scuola Medica Salernitana, Salerno, Italy
| | - Annunziata Raimondo
- Department of Medicine, Surgery and Odontology, Scuola Medica Salernitana, Salerno, Italy
| | | | - Tommaso Ioris
- Division of Dermatology, U.O. Multizonale APSS, Trento, Italy
| | - Paolo Gisondi
- Section of Dermatology, Department of Medicine, University of Verona, Verona, Italy
| | - Francesco Bellinato
- Section of Dermatology, Department of Medicine, University of Verona, Verona, Italy
| | - Emanuele Trovato
- Section of Dermatology, Department of Medical, Surgical and Neurological Science, S. Maria alle Scotte Hospital, University of Siena, Siena, Italy
| | - Elisa Cinotti
- Section of Dermatology, Department of Medical, Surgical and Neurological Science, S. Maria alle Scotte Hospital, University of Siena, Siena, Italy
| | - Manuela Papini
- Dermatology Clinic of Terni, University of Perugia, Department of Medicine and Surgery, Terni, Italy
| | - Michela Cicoletti
- Dermatology Clinic of Terni, University of Perugia, Department of Medicine and Surgery, Terni, Italy
| | - Monica Corazza
- Section of Dermatology and Infectious Diseases, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Michela Starace
- Unit of Dermatology, IRCCS University Hospital of Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
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Hom B, Boyd NK, Vogel BN, Nishimori N, Khoshnood MM, Jafarpour S, Nagesh D, Santoro JD. Down Syndrome and Autoimmune Disease. Clin Rev Allergy Immunol 2024; 66:261-273. [PMID: 38913142 PMCID: PMC11422465 DOI: 10.1007/s12016-024-08996-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2024] [Indexed: 06/25/2024]
Abstract
Down syndrome is the most common genetic cause of intellectual disability and has previously been associated with a variety of autoimmune disorders affecting multiple organ systems. The high prevalence of autoimmune disease, in conjunction with other inflammatory and infectious diseases, in this population suggests an intrinsic immune dysregulation associated with triplication of chromosome 21. Emerging data on the role of chromosome 21 in interferon activation, cytokine production, and activation of B-cell mediated autoimmunity are emerging hypotheses that may explain the elevated prevalence of autoimmune thyroid disease, celiac disease, type I diabetes, autoimmune skin disease, and a variety of autoimmune neurologic conditions. As the life expectancy for individuals with Down syndrome increases, knowledge of the epidemiology, clinical features, management and underlying causes of these conditions will become increasingly important. Disorders such as Hashimoto's thyroiditis are prevalent in between 13 and 34% of individuals with Down syndrome but only 3% of the neurotypical population, a pattern similarly recognized in individuals with Celiac Disease (5.8% v 0.5-2%), alopecia areata (27.7% v. 2%), and vitiligo (4.4% v. 0.05-1.55%), respectively. Given the chronicity of autoimmune conditions, early identification and management can significantly impact the quality of life of individuals with Down syndrome. This comprehensive review will highlight common clinical autoimmune conditions observed in individuals with Down syndrome and explore our current understanding of the mechanisms of disease in this population.
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Affiliation(s)
- Brian Hom
- Keck School of Medicine at the University of Southern California, Los Angeles, CA, USA
| | - Natalie K Boyd
- Division of Neurology, Department of Pediatrics, Children's Hospital Los Angeles, 4650 Sunset Blvd, MS82, Los Angeles, CA90027, USA
| | - Benjamin N Vogel
- Division of Neurology, Department of Pediatrics, Children's Hospital Los Angeles, 4650 Sunset Blvd, MS82, Los Angeles, CA90027, USA
| | - Nicole Nishimori
- Division of Neurology, Department of Pediatrics, Children's Hospital Los Angeles, 4650 Sunset Blvd, MS82, Los Angeles, CA90027, USA
| | - Mellad M Khoshnood
- Division of Neurology, Department of Pediatrics, Children's Hospital Los Angeles, 4650 Sunset Blvd, MS82, Los Angeles, CA90027, USA
| | - Saba Jafarpour
- Division of Neurology, Department of Pediatrics, Children's Hospital Los Angeles, 4650 Sunset Blvd, MS82, Los Angeles, CA90027, USA
| | - Deepti Nagesh
- Division of Neurology, Department of Pediatrics, Children's Hospital Los Angeles, 4650 Sunset Blvd, MS82, Los Angeles, CA90027, USA
- Department of Neurology, Keck School of Medicineat the, University of Southern California , Los Angeles, CA, USA
| | - Jonathan D Santoro
- Division of Neurology, Department of Pediatrics, Children's Hospital Los Angeles, 4650 Sunset Blvd, MS82, Los Angeles, CA90027, USA.
- Department of Neurology, Keck School of Medicineat the, University of Southern California , Los Angeles, CA, USA.
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22
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Lee SH, Jung SW, Lee WS. Alopecia Areata and Season of Onset: A Retrospective Study of 492 Cases. Ann Dermatol 2024; 36:188-190. [PMID: 38816981 PMCID: PMC11148318 DOI: 10.5021/ad.23.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 08/14/2023] [Accepted: 09/24/2023] [Indexed: 06/01/2024] Open
Affiliation(s)
- Sang-Hoon Lee
- Department of Dermatology and Institute of Hair and Cosmetic Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Seung-Won Jung
- Department of Dermatology and Institute of Hair and Cosmetic Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Won-Soo Lee
- Department of Dermatology and Institute of Hair and Cosmetic Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
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23
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Šutić Udović I, Hlača N, Massari LP, Brajac I, Kaštelan M, Vičić M. Deciphering the Complex Immunopathogenesis of Alopecia Areata. Int J Mol Sci 2024; 25:5652. [PMID: 38891839 PMCID: PMC11172390 DOI: 10.3390/ijms25115652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/15/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Alopecia areata (AA) is an autoimmune-mediated disorder in which the proximal hair follicle (HF) attack results in non-scarring partial to total scalp or body hair loss. Despite the growing knowledge about AA, its exact cause still needs to be understood. However, immunity and genetic factors are affirmed to be critical in AA development. While the genome-wide association studies proved the innate and acquired immunity involvement, AA mouse models implicated the IFN-γ- and cytotoxic CD8+ T-cell-mediated immune response as the main drivers of disease pathogenesis. The AA hair loss is caused by T-cell-mediated inflammation in the HF area, disturbing its function and disrupting the hair growth cycle without destroying the follicle. Thus, the loss of HF immune privilege, autoimmune HF destruction mediated by cytotoxic mechanisms, and the upregulation of inflammatory pathways play a crucial role. AA is associated with concurrent systemic and autoimmune disorders such as atopic dermatitis, vitiligo, psoriasis, and thyroiditis. Likewise, the patient's quality of life (QoL) is significantly impaired by morphologic disfigurement caused by the illness. The patients experience a negative impact on psychological well-being and self-esteem and may be more likely to suffer from psychiatric comorbidities. This manuscript aims to present the latest knowledge on the pathogenesis of AA, which involves genetic, epigenetic, immunological, and environmental factors, with a particular emphasis on immunopathogenesis.
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Affiliation(s)
| | | | - Larisa Prpić Massari
- Department of Dermatovenereology, Clinical Hospital Centre Rijeka, Medical Faculty, University of Rijeka, Krešimirova 42, 51000 Rijeka, Croatia; (I.Š.U.); (N.H.); (I.B.); (M.K.); (M.V.)
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Sun R, Kong D. Bilateral Association Between Atopic Dermatitis® and Alopecia Areata: A Systematic Review and Meta-Analysis. Dermatitis 2024; 35:208-218. [PMID: 37471232 DOI: 10.1089/derm.2023.0114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
This systematic review and meta-analysis aimed to explore the association between atopic Dermatitis® (AD) and alopecia areata (AA). A comprehensive search was conducted in PubMed, Embase, Cochrane, and Web of Science from the inception of each database to November 10, 2022 for relevant studies. As there is a potential bilateral association between the 2 diseases, we assessed the prevalence/incidence of AA in patients with AD and the prevalence/incidence of AD in patients with AA. A total of 29 studies involving 11,233,448 participants were included in this analysis. AA was the exposure factor in 23 studies, AD in 7 studies, and both in 1 study. The meta-analysis revealed that the prevalence of AD was 11.2% (7.7%-15.1%) in patients with AA, and the prevalence of AA was 3.2% (95% confidence interval [CI]: 0.0%-11.5%) in patients with AD. The incidence of AD in AA patients was found to vary with age (P = 0.07). Based on 7 studies, there was a significant association between AD and AA when AA was the exposure factor [odds ratio, OR, = 4.537 (95% CI: 2.409-8.544)]; based on 10 studies, there was also a significant association between AD and AA when AD was the exposure factor [OR = 2.643 (95% CI: 1.737-3.995)]. In conclusion, this meta-analysis demonstrated the 2-way association between AD and AA, providing a clinical reference for disease prevention and control.
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Affiliation(s)
- Rong Sun
- From the The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Deqi Kong
- Epidemic Prevention Department, Center for Disease Control and Prevention of Wuzhong District, Suzhou, China
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25
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Westerkam LL, McShane DB, Nieman EL, Morrell DS. Treatment Options for Alopecia Areata in Children and Adolescents. Paediatr Drugs 2024; 26:245-257. [PMID: 38466519 DOI: 10.1007/s40272-024-00620-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/11/2024] [Indexed: 03/13/2024]
Abstract
Alopecia areata (AA) lifetime incidence is around 2%, with many patients first experiencing symptoms during childhood. However, ritlecitinib is the only FDA-approved treatment for pediatric patients 12 years and older. This review outlines reported topical, injectable, and oral treatment options for pediatric patients with AA. Clinical studies were obtained via a PubMed search using the following search terms: alopecia areata, areata, universalis, or totalis and medication, therapy, treatment, drug, or management. Only studies with pediatric patients were included in this review. Commonly used therapies, including corticosteroids, methotrexate, and minoxidil, newer promising medications, such as Janus kinase inhibitors, and less frequently used topical and systemic treatments are included. A summary of the drug development pipeline and ongoing interventional clinical trials with pediatric patients is provided. Treatments demonstrate variable efficacy, and many patients require combination therapy for maximal response. More robust clinical data is needed for many of the medications reviewed in order to provide better care for these patients.
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Affiliation(s)
| | - Diana B McShane
- Department of Dermatology, University of North Carolina, Chapel Hill, NC, USA
| | - Elizabeth L Nieman
- Department of Dermatology, University of North Carolina, Chapel Hill, NC, USA
| | - Dean S Morrell
- Department of Dermatology, University of North Carolina, Chapel Hill, NC, USA
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26
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Qiao R, Zhu J, Liu Y, Zhao X, Nie J, Lan X, Li Y, Jiang Y. Refractory alopecia areata with single hairs imitating frontal fibrosing alopecia: a prospective observational study. Int J Dermatol 2024; 63:618-623. [PMID: 38159030 DOI: 10.1111/ijd.17011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/30/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Lonely hair sign is considered as a clue to the diagnosis of frontal fibrosing alopecia (FFA). OBJECTIVE To report an undescribed variant of alopecia areata (AA) with which the patient developed single hairs and other features similar to FFA and to determine the underlying mechanism. METHODS We conducted a prospective observational study in patients who presented with receding hairline and single hairs, evaluating the clinical, trichoscopic, and histological features and their correlation. Immunochemistry studies were performed to describe the microenvironment. RESULTS Eighteen patients were enrolled in the study. Despite the similarity to FFA clinically, these patients showed different histopathology which revealed a normal number of pilosebaceous units, one anagen hair in one or more pilosebaceous units, and others in telogen stage, consistent with single hairs under the naked eye or under trichoscopy. The severity of the hair loss assessed by SALT was no more than 50, but the response to conventional therapy was poor. CONCLUSIONS This study reports a unique variant of AA. The pathological basis is an increase in the telogen hair follicles, with one anagen hair in one or more pilosebaceous units. Minimal inflammation consisting of CD3+ T lymphocytes and mast cells was demonstrated in the microenvironment.
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Affiliation(s)
- Rui Qiao
- Department of Dermatopathology, Hospital for Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
| | - Jiaping Zhu
- Department of Dermatopathology, Hospital for Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
| | - Yi Liu
- Department of Plastic and Reconstructive Surgery, Hospital for Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
| | - Xiaohui Zhao
- Department of Plastic and Reconstructive Surgery, Hospital for Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
| | - Jin Nie
- Clinical Trials and Cosmetics Testing Center, Hospital for Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
| | - Xuemei Lan
- Department of Dermatopathology, Hospital for Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
| | - Yufen Li
- Department of Dermatopathology, Hospital for Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
| | - Yiqun Jiang
- Department of Dermatopathology, Hospital for Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, Jiangsu, China
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27
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Moreno-Vílchez C, Bonfill-Ortí M, Bauer-Alonso A, Notario J, Figueras-Nart I. Baricitinib for the treatment of alopecia areata in adults: Real-world analysis of 36 patients. J Am Acad Dermatol 2024; 90:1059-1061. [PMID: 38246562 DOI: 10.1016/j.jaad.2023.09.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 08/04/2023] [Accepted: 09/10/2023] [Indexed: 01/23/2024]
Affiliation(s)
- Carlos Moreno-Vílchez
- Department of Dermatology, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge, University of Barcelona, Barcelona, Spain
| | - Montserrat Bonfill-Ortí
- Department of Dermatology, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge, University of Barcelona, Barcelona, Spain
| | - Andrea Bauer-Alonso
- Department of Dermatology, Hospital de Viladecans, University of Barcelona, Barcelona, Spain
| | - Jaime Notario
- Department of Dermatology, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge, University of Barcelona, Barcelona, Spain
| | - Ignasi Figueras-Nart
- Department of Dermatology, Hospital Universitari de Bellvitge, Institut d'Investigació Biomèdica de Bellvitge, University of Barcelona, Barcelona, Spain.
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28
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Suzuki T, Chéret J, Scala FD, Rajabi-Estarabadi A, Akhundlu A, Demetrius DL, Gherardini J, Keren A, Harries M, Rodriguez-Feliz J, Epstein G, Lee W, Purba T, Gilhar A, Paus R. Interleukin-15 is a hair follicle immune privilege guardian. J Autoimmun 2024; 145:103217. [PMID: 38581915 DOI: 10.1016/j.jaut.2024.103217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 03/15/2024] [Accepted: 03/26/2024] [Indexed: 04/08/2024]
Abstract
The autoimmunity-promoting cytokine, Interleukin-15 (IL-15), is often claimed to be a key pathogenic cytokine in alopecia areata (AA). Yet, rhIL-15 promotes human hair follicle (HF) growth ex vivo. We have asked whether the expression of IL-15 and its receptor (IL-15R) isoforms is altered in human AA and how IL-15 impacts on human HF immune privilege (HF-IP) in the presence/absence of interferon-γ (IFNγ), the well-documented key AA-pathogenic cytokine, as well as on hair regrowth after experimental AA induction in vivo. Quantitative immunohistomorphometry showed the number of perifollicular IL-15+ T cells in AA skin biopsies to be significantly increased compared to healthy control skin, while IL-15, IL-15Rα, and IL-15Rγ protein expression within the hair bulb were significantly down-regulated in AA HFs. In organ-cultured human scalp HFs, rhIL-15 significantly reduced hair bulb expression of MICA, the key "danger" signal in AA pathogenesis, and increased production of the HF-IP guardian, α-MSH. Crucially, ex vivo, rhIL-15 prevented IFNγ-induced HF-IP collapse, restored a collapsed HF-IP by IL-15Rα-dependent signaling (as documented by IL-15Rα-silencing), and protected AA-preventive immunoinhibitory iNKT10 cells from IFNγ-induced apoptosis. rhIL-15 even promoted hair regrowth after experimental AA induction in human scalp skin xenotransplants on SCID/beige mice in vivo. Our data introduce IL-15 as a novel, functionally important HF-IP guardian whose signaling is constitutively defective in scalp HFs of AA patients. Our data suggest that selective stimulation of intrafollicular IL-15Rα signaling could become a novel therapeutic approach in AA management, while blocking it pharmacologically may hinder both HF-IP restoration and hair re-growth and may thus make HFs more vulnerable to AA relapse.
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Affiliation(s)
- Takahiro Suzuki
- Dr. Phillip Frost Dept. of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jérémy Chéret
- Dr. Phillip Frost Dept. of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Fernanda D Scala
- Dr. Phillip Frost Dept. of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ali Rajabi-Estarabadi
- Dr. Phillip Frost Dept. of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA; Department of Dermatology, Broward Health, Fort Lauderdale, FL, USA
| | - Aysun Akhundlu
- Dr. Phillip Frost Dept. of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Dana-Lee Demetrius
- Dr. Phillip Frost Dept. of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jennifer Gherardini
- Dr. Phillip Frost Dept. of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Aviad Keren
- Skin Research Laboratory, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Matthew Harries
- Centre for Dermatology Research, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK; Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, M6 8HD, UK
| | | | - Gorana Epstein
- Foundation for Hair Restoration, 33143, Miami, Florida, USA
| | - Wendy Lee
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Talveen Purba
- Centre for Dermatology Research, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Amos Gilhar
- Skin Research Laboratory, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Ralf Paus
- Dr. Phillip Frost Dept. of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA; Centre for Dermatology Research, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK; CUTANEON - Skin & Hair Innovations, Hamburg, Germany.
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29
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Rudnicka L, Trzeciak M, Alpsoy E, Arenberger P, Alper S, Benáková N, Bobko S, Borlu M, Czarnecka Operacz M, Engin B, Ergun T, Sağduyu IE, Filipovská O, Gadzhigoroeva A, Kojanová M, Lesiak A, Michenko A, Murashkin N, Onsun N, Owczarek W, Plzakova Z, Reich A, Selerová M, Gürbüz BA. Disease burden, clinical management and unmet treatment need of patients with moderate to severe alopecia areata; consensus statements, insights, and practices from CERTAAE (Central/Eastern EU, Russia, Türkiye AA experts) Delphi panel. Front Med (Lausanne) 2024; 11:1353354. [PMID: 38741770 PMCID: PMC11089289 DOI: 10.3389/fmed.2024.1353354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 03/25/2024] [Indexed: 05/16/2024] Open
Abstract
Objectives This study aims to update the understanding of Alopecia Areata (AA) in Poland, Czechia, Russia, and Türkiye, focusing on the disease burden, clinical management, and patient journey. It seeks to establish a consensus on optimal management strategies for AA in these regions. Methods A modified 2-round Delphi panel was conveyed with 23 Dermatologists (Russia; 4, Türkiye; 7, Poland; 6, and Czechia; 6). The Delphi questionnaire consisted of 61 statements and 43 questions designed to obtain an overall understanding of the perception and acceptance of available information regarding the care of patients with alopecia areata. Results The study revealed that moderate-to-severe AA significantly impacts patients' and their families' QoL, consistent with previous studies. AA was found to cause more substantial impairment when additional lesions appeared in visible areas besides the scalp. Work and productivity impairment were notably higher in adults with moderate-to-severe AA. Diagnostic consensus highlighted the importance of skin biopsies and trichoscopy, while the need for more practical severity scoring systems was emphasized. Current treatments, including topical therapies, corticosteroids, and systemic immune modifiers, were deemed insufficient, highlighting the unmet medical need. Conclusion The Delphi study underscores a significant disease burden and unmet medical needs in patients with moderate-to-severe AA. It highlights the necessity of access to novel treatments and further research to develop more effective therapies with a tolerable safety profile. The findings align with global research, emphasizing the psychosocial impact of AA and the need for standardized, effective treatment protocols.
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Affiliation(s)
- Lidia Rudnicka
- Department of Dermatology, Medical University of Warsaw, Warsaw, Poland
| | - Magdalena Trzeciak
- Department of Dermatology, Venereology and Allergology, Medical University of Gdańsk, Gdańsk, Poland
| | - Erkan Alpsoy
- Department of Dermatology and Venereology, Akdeniz University School of Medicine, Antalya, Türkiye
| | - Petr Arenberger
- Department of Dermatovenerology, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Sibel Alper
- Department of Dermatology and Venereology, Koç University, İstanbul, Türkiye
| | - Nina Benáková
- Department of Dermatovenereology, First Faculty of Medicine, Charles University, Prague, Czechia
| | - Svetlana Bobko
- Moscow Scientific and Practical Centre of Dermatovenereology and Cosmetology, Moscow, Russia
| | - Murat Borlu
- Dermatology and Venereology Department, Erciyes University, Kayseri, Türkiye
| | | | - Burhan Engin
- Department of Dermatology and Venerology, Cerrahpaşa Medical Faculty, Istanbul University-Cerrahpaşa, İstanbul, Türkiye
| | - Tülin Ergun
- Department of Dermatology, Marmara University, İstanbul, Türkiye
| | | | - Olga Filipovská
- Department of Dermatology, Masaryk Hospital in Ústí nad Labem, Ústí nad Labem, Czechia
| | - Aida Gadzhigoroeva
- Moscow Scientific and Practical Center of Dermatovenereology and Cosmetology, Moscow, Russia
| | - Martina Kojanová
- Department of Dermatovenereology, First Faculty of Medicine, Charles University, Prague, Czechia
| | - Aleksandra Lesiak
- Laboratory of Autoinflammatory, Genetic and Rare Skin Disorders, Department of Dermatology, Pediatric Dermatology and Oncology, Medical University of Lodz, Lodz, Poland
| | - Anna Michenko
- Moscow Scientific and Practical Centre of Dermatovenereology and Cosmetology, Moscow, Russia
- Federal State Budgetary Institution of Continuing Professional Education, Central State Medical Academy, Moscow, Russia
- Medical Research and Educational Center, Lomonosov Moscow State University, Moscow, Russia
| | - Nikolay Murashkin
- National Medical Research Center for Children’s Health, Moscow, Russia
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
- Dermatology Department, Federal State Autonomous Institution, Scientific Centre of Children’s Health of the Ministry of Health of the Russian Federation, Moscow, Russia
- Research Institute for Pediatrics and Children’s Health Protection, Federal National Public Healthcare Institution “Central Clinical Hospital of the Russian Academy of Sciences”, Ministry of Science and Higher Education, Moscow, Russia
| | - Nahide Onsun
- Dermatology Department, Bezmialem Vakıf University, İstanbul, Türkiye
| | - Witold Owczarek
- Department of Dermatology, Military Institute of Medicine, Warsaw, Poland
| | - Zuzana Plzakova
- Department of Dermatovenereology, First Faculty of Medicine, Charles University, Prague, Czechia
| | - Adam Reich
- Department of Dermatology, University of Rzeszów, Rzeszów, Poland
| | - Marie Selerová
- Department of Dermatology, Hospital AGEL Novy Jicin, JSC, Novy Jicin, Czechia
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30
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Burgos-Blasco B, Burgos-Blasco P, Rodriguez-Quet O, Arriola-Villalobos P, Fernandez-Vigo JI, Saceda-Corralo D, Vaño-Galvan S, García-Feijóo J. Alterations in Corneal Sensitivity, Staining and Biomechanics of Alopecia Areata Patients: Novel Findings in a Case-Control Study. J Clin Med 2024; 13:2426. [PMID: 38673699 PMCID: PMC11050955 DOI: 10.3390/jcm13082426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 04/02/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
Background: A higher prevalence of ophthalmological alterations in systemic inflammatory diseases has been demonstrated. Objectives: Our objectives were to determine anterior segment findings and corneal properties in alopecia areata (AA). Methods: This is a case-control study. Severe AA patients (Severity of Alopecia Tool > 50%) and non-AA subjects underwent a general ophthalmological examination, a Pentacam and Corvis scheimpflug technology examination (Oculus Optikgeräte GmbH, Wetzlar, Germany). Visual acuity, refractive error, corneal aesthesiometry, and biomechanical and topographic variables were registered. Results: In total, 25 AA patients (50 eyes; 50.6 ± 8.1 years) and 29 controls (58 eyes; 49.4 ± 8.6 years) were included. AA patients had decreased corneal sensitivity, more corneal staining, and a more advanced cataract (p ≤ 0.004). The anterior topographic flat meridian, mean anterior keratometry, and maximum keratometric point were increased in AA (p ≤ 0.040), while pachymetry values were thinner (p ≤ 0.001). Keratoconus index and Belin/Ambrosio-enhanced ectasia total deviation display were increased (p ≤ 0.007). Two eyes with a topographic diagnosis of keratoconus and four eyes with subclinical keratoconus were detected in AA. Applanation lengths were smaller in AA (p ≤ 0.029). The Corvis Biomechanical Index was increased in AA (p = 0.022). Conclusions: AA patients have reduced corneal sensitivity and increased corneal staining. Topographic and biomechanical parameters are altered, and there could be a higher risk of keratoconus, thus possibly requiring routine ophthalmological examination.
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Affiliation(s)
- Barbara Burgos-Blasco
- Ophthalmology Department, Instituto de Investigación Sanitaria, Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
| | - Patricia Burgos-Blasco
- Trichology Unit, Dermatology Department, Instituto Ramón y Cajal de Investigación Sanitaria—IRYCIS, Ramon y Cajal Hospital, 28034 Madrid, Spain
| | - Olivia Rodriguez-Quet
- Ophthalmology Department, Instituto de Investigación Sanitaria, Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
| | - Pedro Arriola-Villalobos
- Ophthalmology Department, Instituto de Investigación Sanitaria, Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
- Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Jose Ignacio Fernandez-Vigo
- Ophthalmology Department, Instituto de Investigación Sanitaria, Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
| | - David Saceda-Corralo
- Trichology Unit, Dermatology Department, Instituto Ramón y Cajal de Investigación Sanitaria—IRYCIS, Ramon y Cajal Hospital, 28034 Madrid, Spain
- Grupo Pedro Jaen Clinic, 28002 Madrid, Spain
| | - Sergio Vaño-Galvan
- Trichology Unit, Dermatology Department, Instituto Ramón y Cajal de Investigación Sanitaria—IRYCIS, Ramon y Cajal Hospital, 28034 Madrid, Spain
- Grupo Pedro Jaen Clinic, 28002 Madrid, Spain
| | - Julián García-Feijóo
- Ophthalmology Department, Instituto de Investigación Sanitaria, Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
- Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain
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31
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Hossain MM, Khalid A, Akhter Z, Parveen S, Ayaz MO, Bhat AQ, Badesra N, Showket F, Dar MS, Ahmed F, Dhiman S, Kumar M, Singh U, Hussain R, Keshari P, Mustafa G, Nargorta A, Taneja N, Gupta S, Mir RA, Kshatri AS, Nandi U, Khan N, Ramajayan P, Yadav G, Ahmed Z, Singh PP, Dar MJ. Discovery of a novel and highly selective JAK3 inhibitor as a potent hair growth promoter. J Transl Med 2024; 22:370. [PMID: 38637842 PMCID: PMC11025159 DOI: 10.1186/s12967-024-05144-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 03/23/2024] [Indexed: 04/20/2024] Open
Abstract
JAK-STAT signalling pathway inhibitors have emerged as promising therapeutic agents for the treatment of hair loss. Among different JAK isoforms, JAK3 has become an ideal target for drug discovery because it only regulates a narrow spectrum of γc cytokines. Here, we report the discovery of MJ04, a novel and highly selective 3-pyrimidinylazaindole based JAK3 inhibitor, as a potential hair growth promoter with an IC50 of 2.03 nM. During in vivo efficacy assays, topical application of MJ04 on DHT-challenged AGA and athymic nude mice resulted in early onset of hair regrowth. Furthermore, MJ04 significantly promoted the growth of human hair follicles under ex-vivo conditions. MJ04 exhibited a reasonably good pharmacokinetic profile and demonstrated a favourable safety profile under in vivo and in vitro conditions. Taken together, we report MJ04 as a highly potent and selective JAK3 inhibitor that exhibits overall properties suitable for topical drug development and advancement to human clinical trials.
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Affiliation(s)
- Md Mehedi Hossain
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Arfan Khalid
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Zaheen Akhter
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Sabra Parveen
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Mir Owais Ayaz
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Aadil Qadir Bhat
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Neetu Badesra
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Farheen Showket
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Mohmmad Saleem Dar
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
| | - Farhan Ahmed
- Division of Neuroscience and Ageing Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India
| | - Sumit Dhiman
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Mukesh Kumar
- Medicinal Product Chemistry, Sussex Drug Discovery Centre, School of Life Sciences, University of Sussex, Falmer, Brighton, BN1 9QG, UK
| | - Umed Singh
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Razak Hussain
- Department of Entomology, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Pankaj Keshari
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Ghulam Mustafa
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Amit Nargorta
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Neha Taneja
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India
| | - Somesh Gupta
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India
| | - Riyaz A Mir
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Aravind Singh Kshatri
- Division of Neuroscience and Ageing Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India
| | - Utpal Nandi
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Nooruddin Khan
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad, 500046, India
| | - P Ramajayan
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Govind Yadav
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Zabeer Ahmed
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India
- Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India
| | - Parvinder Pal Singh
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India.
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India.
| | - Mohd Jamal Dar
- Laboratory of Cell and Molecular Biology, Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, 180001, India.
- Academy of Scientific & Innovative Research, Ghaziabad, Uttar Pradesh, 201002, India.
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Yamaguchi HL, Yamaguchi Y, Peeva E. Pathogenesis of Alopecia Areata and Vitiligo: Commonalities and Differences. Int J Mol Sci 2024; 25:4409. [PMID: 38673994 PMCID: PMC11049978 DOI: 10.3390/ijms25084409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/13/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024] Open
Abstract
Both alopecia areata (AA) and vitiligo are distinct, heterogenous, and complex disease entities, characterized by nonscarring scalp terminal hair loss and skin pigment loss, respectively. In AA, inflammatory cell infiltrates are in the deep reticular dermis close to the hair bulb (swarm of bees), whereas in vitiligo the inflammatory infiltrates are in the epidermis and papillary dermis. Immune privilege collapse has been extensively investigated in AA pathogenesis, including the suppression of immunomodulatory factors (e.g., transforming growth factor-β (TGF-β), programmed death-ligand 1 (PDL1), interleukin-10 (IL-10), α-melanocyte-stimulating hormone (α-MSH), and macrophage migration inhibitory factor (MIF)) and enhanced expression of the major histocompatibility complex (MHC) throughout hair follicles. However, immune privilege collapse in vitiligo remains less explored. Both AA and vitiligo are autoimmune diseases that share commonalities in pathogenesis, including the involvement of plasmacytoid dendritic cells (and interferon-α (IFN- α) signaling pathways) and cytotoxic CD8+ T lymphocytes (and activated IFN-γ signaling pathways). Blood chemokine C-X-C motif ligand 9 (CXCL9) and CXCL10 are elevated in both diseases. Common factors that contribute to AA and vitiligo include oxidative stress, autophagy, type 2 cytokines, and the Wnt/β-catenin pathway (e.g., dickkopf 1 (DKK1)). Here, we summarize the commonalities and differences between AA and vitiligo, focusing on their pathogenesis.
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Affiliation(s)
| | - Yuji Yamaguchi
- Inflammation & Immunology Research Unit, Pfizer, Collegeville, PA 19426, USA
| | - Elena Peeva
- Inflammation & Immunology Research Unit, Pfizer, Cambridge, MA 02139, USA;
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Lin Y, Wu X, Yang Y, Wu Y, Xiang L, Zhang C. The multifaceted role of autophagy in skin autoimmune disorders: a guardian or culprit? Front Immunol 2024; 15:1343987. [PMID: 38690268 PMCID: PMC11058840 DOI: 10.3389/fimmu.2024.1343987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 04/01/2024] [Indexed: 05/02/2024] Open
Abstract
Autophagy is a cellular process that functions to maintain intracellular homeostasis via the degradation and recycling of defective organelles or damaged proteins. This dynamic mechanism participates in various biological processes, such as the regulation of cellular differentiation, proliferation, survival, and the modulation of inflammation and immune responses. Recent evidence has demonstrated the involvement of polymorphisms in autophagy-related genes in various skin autoimmune diseases. In addition, autophagy, along with autophagy-related proteins, also contributes to homeostasis maintenance and immune regulation in the skin, which is associated with skin autoimmune disorders. This review aims to provide an overview of the multifaceted role of autophagy in skin autoimmune diseases and shed light on the potential of autophagy-targeting therapeutic strategies in dermatology.
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Affiliation(s)
| | | | | | | | | | - Chengfeng Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
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Yan T, Wang T, Tang M, Liu N. Comparative efficacy and safety of JAK inhibitors in the treatment of moderate-to-severe alopecia areata: a systematic review and network meta-analysis. Front Pharmacol 2024; 15:1372810. [PMID: 38659584 PMCID: PMC11039836 DOI: 10.3389/fphar.2024.1372810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/20/2024] [Indexed: 04/26/2024] Open
Abstract
We performed a Bayesian network meta-analysis to indirectly compare the relative efficacy and safety of the latest JAK inhibitors for moderate-to-severe alopecia areata (AA). 13 trials totaling 3,613 patients were included. Two low-dose groups of oral formulations (ritlecitinib 10mg and ivarmacitinib 2mg) and two topical formulations (delgocitinib ointment and ruxolitinib cream) appeared to be relatively ineffective against moderate-to-severe AA. Ranking analysis suggested that brepocitinib 30mg has the best relative effect in reducing the SALT score (sucra = 0.9831), and demonstrated comparable efficacy to deuruxolitinib 12mg (sucra = 0.9245), followed by deuruxolitinib 8mg (sucra = 0.7736). Regarding the SALT50 response, brepocitinib 30mg ranked highest (sucra = 0.9567), followed by ritlecitinib 50mg (sucra = 0.8689) and deuruxolitinib 12mg (sucra = 0.7690). For achieving the SALT75 response, deuruxolitinib 12mg had the highest probability (sucra = 0.9761), followed by deuruxolitinib 8mg (sucra = 0.8678) and brepocitinib 30mg (sucra = 0.8448). Deuruxolitinib 12mg might be the most effective therapy for patients with severe AA (sucra = 0.9395), followed by ritlecitinib 50mg (sucra = 0.8753) and deuruxolitinib 8mg (sucra = 0.8070). Deuruxolitinib 12mg/8mg demonstrated notable efficacy for moderate-to-severe AA, and is expected to be a new treatment option for AA. It was worth noting that deuruxolitinib exhibit a greater likelihood of causing adverse events in comparison to other JAK inhibitors. Ritlecitinib 50mg seemed to exhibit fewer adverse effects in the high-dose groups of oral JAK inhibitors and might be an optimal choice to balance safety and efficacy. The majority of JAK inhibitors exhibited acceptable short-term safety profiles. To enhance the applicability and accuracy of our research, further head-to-head trials with longer follow-up periods are needed. Systematic Review Registration: identifier [CRD42022368012].
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Affiliation(s)
- Ting Yan
- Department of Pharmacy, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Ting Wang
- Department of Pharmacy, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Mei Tang
- Department of Pharmacy, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Nan Liu
- Departments of Nuclear Medicine, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
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Sørensen SBT, George P, Jagun O, Wolk R, Napatalung L, Zwillich SH, Iversen L, Ehrenstein V. The Epidemiology of Hospital-Treated Alopecia Areata in Denmark, 1995-2016. Dermatol Ther (Heidelb) 2024; 14:993-1006. [PMID: 38625633 PMCID: PMC11052984 DOI: 10.1007/s13555-024-01145-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/19/2024] [Indexed: 04/17/2024] Open
Abstract
INTRODUCTION Alopecia areata (AA) is an autoimmune skin disease presenting as nonscarring hair loss. Information on the epidemiology of AA, especially the occurrence of AA and its subtypes within the general population, is scarce. The study aimed to estimate the incidence rates and prevalence of hospital-treated AA and its subtypes in Denmark and to examine the demographic and clinical characteristics of patients with AA, including comorbidities and use of prescription medications. METHODS This was a cohort study based on data from administrative and health registers in Denmark in 1995-2016. The study included individuals who were (1) registered with a hospital inpatient or hospital-based outpatient clinic diagnosis of AA between 1995 and 2016 in the Danish National Patient Registry covering encounters at all Danish hospitals, (2) alive and resided in Denmark anytime between 1995 and 2016, (3) aged ≥ 12 years, and (4) resided uninterrupted in Denmark during the 12 months before the first AA diagnosis during the study period. RESULTS During the study period, 2778 individuals with an incident hospital-based diagnosis of AA were identified; 63.1% were female and 28.7% of the patients were aged ≥ 50 years. Over the study period, the overall incidence rate for any hospital-treated AA per 100,000 person-years was 2.62 (95% confidence interval [CI], 2.53-2.72), and the overall prevalence in 2016 was 71.7 (95% CI 69.4-74.1) per 100,000 persons. Both incidence rate and prevalence increased over time. Prevalence of most hospital-treated comorbidities or history of medication use was below 10% and was similar in the alopecia totalis (AT)/alopecia universalis (AU) and non-AT/AU subtypes of AA. CONCLUSION This cohort study reported incidence rates and prevalence over time and characteristics of individuals with hospital-treated AA in Denmark, which are in agreement with those previously reported in this population.
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Affiliation(s)
- Sissel Brandt Toft Sørensen
- Department of Clinical Medicine and Department of Clinical Epidemiology, Aarhus University and Aarhus University Hospital, Olof Palmes Allé 43-45, 8200, Aarhus N, Denmark
| | | | | | | | - Lynne Napatalung
- Pfizer Inc., New York, NY, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Lars Iversen
- Department of Dermatology, Aarhus University Hospital and Aarhus University, Aarhus N, Denmark
- MC2 Therapeutics A/S, Hørsholm, Denmark
| | - Vera Ehrenstein
- Department of Clinical Medicine and Department of Clinical Epidemiology, Aarhus University and Aarhus University Hospital, Olof Palmes Allé 43-45, 8200, Aarhus N, Denmark.
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Asilian A, Mohammadian P, Shahmoradi Z. Effectiveness of oral tofacitinib treatment on patients with moderate-to-severe alopecia areata in Iran. J Cosmet Dermatol 2024; 23:886-890. [PMID: 37933534 DOI: 10.1111/jocd.16049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/23/2023] [Accepted: 10/12/2023] [Indexed: 11/08/2023]
Abstract
INTRODUCTION Alopecia areata is an inflammatory hair loss and a common autoimmune disease. Conducting treatment studies on alopecia areata is difficult due to unpredictable periods and even spontaneous recovery from the disease. In this study, the effectiveness of tofacitinib in treating alopecia areata was investigated. MATERIALS AND METHODS The severity of the disease was evaluated using the Alopecia Severity Tool (SALT), and based on the medical history and patient's documents and photos, the score before and after the treatment was obtained. The patients were prescribed tofacitinib tablets at a dose of 5 mg twice a day for at least 6 months and were followed for a minimum of 18 months. RESULTS No side effect was observed in 97.9% of the patients. After 6 months, except for three patients who did not need any maintenance dose, others needed an average daily intake of 7 mg of tofacitinib. After 18 months, the hair loss decreased by 6.45 times compared to the beginning and by 0.5 times compared to the end of 6 months (p < 0.05). In addition, it was found that body hair loss decreased 4 times compared to the beginning and 0.6 times compared to the end of 6 months (p < 0.05). The reduction of nail involvement after 18 months and 6 months was 1.2 times and 0.6, respectively, (p < 0.05). CONCLUSION Treatment of alopecia areata with tofacitinib is recommended due to its effectiveness in reducing hair loss on the head, body, and nail involvement with few reversible side effects.
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Affiliation(s)
- Ali Asilian
- Department of Dermatology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Dermatology, Skin and Leishmaniasis Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parisa Mohammadian
- Department of Dermatology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Dermatology, Skin and Leishmaniasis Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zabihollah Shahmoradi
- Department of Dermatology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Dermatology, Skin and Leishmaniasis Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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To TT, Oparaugo NC, Kheshvadjian AR, Nelson AM, Agak GW. Understanding Type 3 Innate Lymphoid Cells and Crosstalk with the Microbiota: A Skin Connection. Int J Mol Sci 2024; 25:2021. [PMID: 38396697 PMCID: PMC10888374 DOI: 10.3390/ijms25042021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/18/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Innate lymphoid cells (ILCs) are a diverse population of lymphocytes classified into natural killer (NK) cells, ILC1s, ILC2s, ILC3s, and ILCregs, broadly following the cytokine secretion and transcription factor profiles of classical T cell subsets. Nonetheless, the ILC lineage does not have rearranged antigen-specific receptors and possesses distinct characteristics. ILCs are found in barrier tissues such as the skin, lungs, and intestines, where they play a role between acquired immune cells and myeloid cells. Within the skin, ILCs are activated by the microbiota and, in turn, may influence the microbiome composition and modulate immune function through cytokine secretion or direct cellular interactions. In particular, ILC3s provide epithelial protection against extracellular bacteria. However, the mechanism by which these cells modulate skin health and homeostasis in response to microbiome changes is unclear. To better understand how ILC3s function against microbiota perturbations in the skin, we propose a role for these cells in response to Cutibacterium acnes, a predominant commensal bacterium linked to the inflammatory skin condition, acne vulgaris. In this article, we review current evidence describing the role of ILC3s in the skin and suggest functional roles by drawing parallels with ILC3s from other organs. We emphasize the limited understanding and knowledge gaps of ILC3s in the skin and discuss the potential impact of ILC3-microbiota crosstalk in select skin diseases. Exploring the dialogue between the microbiota and ILC3s may lead to novel strategies to ameliorate skin immunity.
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Affiliation(s)
- Thao Tam To
- Division of Dermatology, Department of Medicine, University of California (UCLA), Los Angeles, CA 90095, USA
| | - Nicole Chizara Oparaugo
- Division of Dermatology, Department of Medicine, University of California (UCLA), Los Angeles, CA 90095, USA
| | - Alexander R. Kheshvadjian
- Division of Dermatology, Department of Medicine, University of California (UCLA), Los Angeles, CA 90095, USA
| | - Amanda M. Nelson
- Department of Dermatology, Penn State University College of Medicine, Hershey, PA 17033, USA
| | - George W. Agak
- Division of Dermatology, Department of Medicine, University of California (UCLA), Los Angeles, CA 90095, USA
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Park SH, Kim H, Kim JU, Hong SM, Ahn SW. The Ratio of Typical Clubbing in Pulled-Out Hairs as a Useful Marker in Predicting the Course of Alopecia Areata. Ann Dermatol 2024; 36:29-34. [PMID: 38325431 PMCID: PMC10861307 DOI: 10.5021/ad.23.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/12/2023] [Accepted: 07/26/2023] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND Analysis of hair microscopic morphology is a simple and less invasive method to differentiate alopecia areata (AA) from other alopecic diseases. However, there is limited information on the distribution of the microscopic characteristics. OBJECTIVE This study evaluated the microscopic morphological characteristics of pulled-out hair and their correlation with disease course in AA. METHODS Morphological characteristics of pulled-out hair were classified into 5 categories: the presence of typical clubbing, surface undulation, tapering, breakage, and depigmentation in proximal hair shaft. Clinical course of AA was investigated through assessment of Severity of Alopecia Tool (SALT) score (initial score, maximal score and difference of them [ΔSALT]). RESULTS Among 1,272 pulled-out hairs (n=179) obtained at initial visit, depigmentation (59.5%) was the most common, followed by loss of typical clubbing (57.2%) and surface undulation (55.2%). The percentage of loss of typical clubbing and proximal tapering was significantly higher in severe type of AA, younger age of onset and shorter disease duration. The ratio of typical clubbing (<50% vs. ≥50%) was associated with difference in maximal score and ΔSALT (p<0.05). Strong activity group (pulled-out hair ≥10, n=33) showed difference in clinical course (maximal score, ΔSALT) as well as distribution of microscopic features (loss of typical clubbing) compared with those in non-strong activity group. The ratio of typical clubbing significantly increased at follow-up than initially in strong activity group (p<0.05). CONCLUSION Microscopic hair morphology, especially loss of typical clubbing and proximal tapering, could be useful tool to predict the course of AA.
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Affiliation(s)
- So Hee Park
- Department of Dermatology, Haeundae Paik Hospital, College of Medicine, Inje University, Busan, Korea
| | - Hyojin Kim
- Department of Dermatology, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
| | - Jong Uk Kim
- Department of Dermatology, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea
| | - Seong Min Hong
- Department of Dermatology, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea
| | - Sang Woo Ahn
- Department of Dermatology, Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea
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Xu P, Xiao W, Xu K, He Y, Miao X, Dong Y, Sun L. Potential strategy of microneedle-based transdermal drug delivery system for effective management of skin-related immune disorders. Eur J Pharm Biopharm 2024; 195:114148. [PMID: 37995878 DOI: 10.1016/j.ejpb.2023.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/03/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023]
Abstract
Skin-related immune disorders are a category of diseases that lead to the dysregulation of the body's immune response due to imbalanced immune regulation. These disorders exhibit diverse clinical manifestations and complicated pathogenesis. The long-term use of corticosteroids, anti-inflammatory drugs, and immunosuppressants as traditional treatment methods for skin-related immune disorders frequently leads to adverse reactions in patients. In addition, the effect of external preparations is not ideal in some cases due to the compacted barrier function of the stratum corneum (SC). Microneedles (MNs) are novel transdermal drug delivery systems that have theapparent advantages ofpenetrating the skin barrier, such as long-term and controlled drug delivery, less systemic exposure, and painless and minimally invasive targeted delivery. These advantages make it a good candidate formulation for the treatment of skin-related immune disorders and a hotspot for research in this field. This paper updates the classification, preparation, evaluation strategies, materials, and related applications of five types of MNs. Specific information, including the mechanical properties, dimensions, stability, and in vitro and in vivo evaluations of MNs in the treatment of skin-related immune disorders, is also discussed. This review provides an overview of the advances and applications of MNs in the effective treatment of skin-related immune disorders and their emerging trends.
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Affiliation(s)
- Peng Xu
- Department of Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, China
| | - Wei Xiao
- Department of Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, China
| | - Kun Xu
- Department of Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, China
| | - Yuan He
- Department of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Xiaoqing Miao
- Marine College, Shandong University, Weihai 264209, China
| | - Yan Dong
- Department of Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, China
| | - Lin Sun
- Department of Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, China.
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Prasanna H, Srinivas RT, Kuppuswamy SK, Keloji H, Ravikumar PT. A comparative study of fractional CO 2 laser with topical triamcinolone acetonide versus intralesional triamcinolone acetonide in the treatment of alopecia areata. J Cutan Aesthet Surg 2024; 17:34-40. [PMID: 38736853 PMCID: PMC11086937 DOI: 10.4103/jcas.jcas_31_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024] Open
Abstract
Introduction Alopecia areata (AA) is a non-scarring alopecia of chronic autoimmune etiology with heterogenous severity against the anagen hair follicle over the scalp, beard, or any part of the body and is associated with a significant psychological morbidity in the mental status of the patients leading the patients to seek treatment for cosmetic reasons. The management of AA is very unpredictable and is associated with various cosmetic adverse effects. This study aimed at comparing the efficacy and safety of a novel procedure of laser-assisted drug delivery system of steroids with the first-line procedure of intralesional steroids (ILS) for the treatment of patchy AA. Aims and Objectives To assess and compare the efficacy and safety of fractional CO2 laser in combination with topical triamcinolone acetonide aqueous solution and intralesional triamcinolone acetonide as a monotherapy and in the treatment of AA. Materials and Methods A total of 60 patchy AA patients were included in this study. Patients were randomized into two equal groups: Group A and Group B with 30 patients in each group using a computer-generated block randomization. Patients in Group A received fractional CO2 laser with topical triamcinolone acetonide aqueous solution and Group B received ILS. Both groups received treatment for five settings with each setting a gap of 3 weeks. The efficacy and safety of treatment modalities in both groups were assessed using global photograph assessment (GPA)-scale, lesional area density score percentage of improvement (LAD score improvement %), visual discomfort scale (VDS), visual analogue scale, and documentation of adverse effects in each setting. Results Efficacy of treatment modality-assessed using means score of GPA-scale and LAD score improvement % suggests quicker results to patients in Group B in initial settings but drastic improvement happens to patients in Group A in subsequent settings. At the end of 5th setting, GPA-scale and LAD score improvement % suggest maximum efficacy in patients in Group A and they are statistically significant (P-value < 0.001). The mean VDS in both groups suggests maximum discomfort in Group A, yet the patient satisfaction at the end of 5th setting was maximum with patients in Group A and they are statistically significant (P-value < 0.001). Cosmetic notable adverse effect of atrophy of skin was documented in 30% of patients in Group B. Conclusion This study showed that fractional CO2 laser with topical triamcinolone acetonide is a better treatment modality than the intralesional triamcinolone acetonide for the treatment of AA with respect to efficacy, safety, and adverse events.
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Affiliation(s)
- Harish Prasanna
- Department of Dermatology Venereology and Leprosy, Sri Devaraj Urs Academy of Higher Education and Research, Kolar, Karnataka, India
| | - Rajashekar Talari Srinivas
- Department of Dermatology Venereology and Leprosy, Sri Devaraj Urs Academy of Higher Education and Research, Kolar, Karnataka, India
| | - Suresh Kumar Kuppuswamy
- Department of Dermatology Venereology and Leprosy, Sri Devaraj Urs Academy of Higher Education and Research, Kolar, Karnataka, India
| | - Hanumanthayya Keloji
- Department of Dermatology Venereology and Leprosy, Sri Devaraj Urs Academy of Higher Education and Research, Kolar, Karnataka, India
| | - Pavithra Thotta Ravikumar
- Department of Dermatology Venereology and Leprosy, Sri Devaraj Urs Academy of Higher Education and Research, Kolar, Karnataka, India
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Khutsishvili N, Rudnicka L, Ovcharenko Y, Starace M, Buchukuri I, Pataraia S, Lortkipanidze N. Trichoscopy - a valuable tool for identifying conditions mimicking androgenetic alopecia. Int J Dermatol 2024; 63:23-31. [PMID: 37950461 DOI: 10.1111/ijd.16895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/20/2023] [Accepted: 10/22/2023] [Indexed: 11/12/2023]
Abstract
Androgenetic alopecia (AGA) is the most prevalent type of hair loss in women and men. Recently, a European consensus group published guidelines for the diagnostic evaluation of AGA in men, women, and adolescents. This S1 guideline presents expert opinion-based recommendations for gender-dependent steps in the diagnostic procedure, which can easily be implemented in the daily clinical routine. For diagnosing AGA, detailed anamnesis and objective learning are not enough because there are several conditions mimicking this disease. Trichoscopy can be considered an important, non-invasive tool for diagnosing hair and scalp disorders that may have similar clinical signs to AGA.
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Affiliation(s)
| | | | | | | | - Irma Buchukuri
- Petre Shotadze Tbilisi Medical Academy, Tbilisi, Georgia
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Xu W, Shen Y, Sun J, Wei D, Xie B, Song X. Causal role of immune cells in alopecia areata: A two-sample Mendelian randomization study. Skin Res Technol 2024; 30:e13579. [PMID: 38221794 PMCID: PMC10788640 DOI: 10.1111/srt.13579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 12/28/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND Previous research has highlighted an association between alopecia areata (AA) and the collapse of hair follicle immune privilege, however, the causal linkage to specific immune cell traits remains to be elucidated. This study aimed to investigate the causal influence of immune cell traits on AA utilizing a two-sample Mendelian randomization (MR) approach. METHODS Leveraging GWAS summary statistics of 731 immunological traits (n = 3757) and AA data (n = 211,428), MR analyses were conducted employing inverse-variance weighted (IVW), weighted median, and MR-Egger regression methodologies. Sensitivity analyses were undertaken using Cochran's Q test, MR-Egger intercept test, and MR-PRESSO analysis. A reverse MR analysis was performed for immune cell traits identified in the initial MR analysis. RESULTS Our study unveiled multiple immune traits associated with AA. Protective associations were observed for CD62L- CD86+ myeloid dendritic cells (DCs), TD CD4+%CD4+ T cells, and others, with ORs ranging from 0.63 to 0.78. Conversely, traits like CD62L on CD62L+ plasmacytoid DCs, HLA-DR on CD14- CD16+ monocytes, HLA-DR on monocytes, and others, were determined to augment the risk of AA, with ORs ranging from 1.13 to 1.46. Reverse MR analysis signified a reduction in BAFF-R on IgD-CD24-B cells post-AA onset (OR: 0.97, 95% CI: 0.95-1.00), with no identified heterogeneity or horizontal pleiotropy among the instrumental variables (IVs). CONCLUSIONS Our findings suggests that CD62L on certain subpopulations of DCs and HLA-DR on monocytes may epitomize risk factors for AA, offering potential therapeutic targets for alleviating AA.
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Affiliation(s)
- Wen Xu
- School of MedicineZhejiang UniversityHangzhouChina
- Department of DermatologyHangzhou Third People's HospitalHangzhouChina
| | - Yuqing Shen
- Hangzhou Third HospitalAffiliated to Zhejiang Chinese Medical UniversityHangzhouChina
| | - Jiayi Sun
- Hangzhou Third HospitalAffiliated to Zhejiang Chinese Medical UniversityHangzhouChina
| | - Dongfan Wei
- School of MedicineZhejiang UniversityHangzhouChina
- Department of DermatologyHangzhou Third People's HospitalHangzhouChina
| | - Bo Xie
- Department of DermatologyHangzhou Third People's HospitalHangzhouChina
| | - Xiuzu Song
- Department of DermatologyHangzhou Third People's HospitalHangzhouChina
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Bi L, Wang C, Du Y, Su T, Zhao M, Lin X, Fan W, Sun W. Effectiveness and safety of baricitinib in patients with moderate-to-severe refractory alopecia areata in real world: An open-label, single-center study. J Cosmet Dermatol 2023. [PMID: 38116864 DOI: 10.1111/jocd.16123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/10/2023] [Accepted: 11/28/2023] [Indexed: 12/21/2023]
Abstract
PURPOSE Baricitinib is a small-molecular drug that selectively inhibits the Janus Kinase (JAK) 1 and 2. However, it showed various efficiency and safety in treating moderate-to-severe alopecia areata (AA). This study was to describe the real-world effectiveness of baricitinib in treating moderate-to-severe refractory AA. METHODS Patients who were affected by moderate-to-severe AA and reported no shrinkage in the alopecia area after 6 months of conventional treatment were enrolled in the retrospective study. The patients were treated with baricitinib orally for at least 24 weeks. The severity of alopecia was evaluated at the end of 4, 12, and 24 weeks of treatment. RESULTS The 32 patients included 23 females and nine males, with a median duration of AA of 14.5 months. Among them, 28 patients received baricitinib 2 mg per day for 24 weeks while the other four patients increased the daily dose from 2 to 4 mg after the first 12 weeks due to the unobvious hair restoration. SALT value showed a significant decrease from baseline at week 12 and 24 (64.45 [44.68-100.00] vs. 26.80 [13.40-62.32], p < 0.0001 and 64.45 [44.68-100] vs. 9.40 [4.85-34.95], p < 0.0001). After 24 weeks of treatment, 50% of patients had an improvement of ≥2 points in IGA scores from the baseline, and IGA scores of 68.75% of patients were less than 2. CONCLUSION This 24-week research showed that baricitinib had favorable clinical efficacy and safety in treating moderate-to-severe AA, which is worthy of attention and expectation.
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Affiliation(s)
- Lingbo Bi
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chaofan Wang
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yimei Du
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Tong Su
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Department of Dermatology, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Min Zhao
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xuewen Lin
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Weixin Fan
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Weiling Sun
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Huang J, Qian P, Tang Y, Li J, Liu F, Shi W. Effectiveness and Predictive Factors of Response to Tofacitinib Therapy in 125 Patients with Alopecia Areata: A Single-centre Real-world Retrospective Study. Acta Derm Venereol 2023; 103:adv12425. [PMID: 38112208 PMCID: PMC10753592 DOI: 10.2340/actadv.v103.12425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 11/08/2023] [Indexed: 12/21/2023] Open
Abstract
Alopecia areata is an autoimmune disorder that greatly impacts patients' quality of life, and its management remains challenging. Tofacitinib is the first Janus kinase inhibitor to be approved for clinical use and is the most extensively studied. Several studies have demonstrated the clinical effectiveness of oral tofacitinib in treating patients with alopecia areata. However, despite being widely used in clinical practice, no prospective randomized controlled trials have been implemented and its indication criteria have not been thoroughly established. Moreover, little is known about the factors associated with response to therapy under real-world conditions. The aims of this retrospective cohort study of patients with alopecia areata treated with tofacitinib for 3 months were to assess the effectiveness of tofacitinib and to identify predictive factors of response to it. Primary outcome was the change in disease severity, as evaluated by Severity of Alopecia Tool (SALT) grade. A total of 125 patients with alopecia areata were included, the incidence of effectiveness was 83.2%, and 16.0% of patients achieved a result of complete remission. Total duration of alopecia areata and previous hair regrowth were independent predictors of response. Combined therapy was associated with relapse after discontinuation. No severe adverse event was observed. This study suggests that tofacitinib provides an effective treatment option for patients with alopecia areata, and that earlier intervention in the treatment of severe alopecia areata with tofacitinib may lead to better outcomes.
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Affiliation(s)
- Jundong Huang
- Department of Dermatology, Xiangya Hospital, Central South University, Hu Nan Key Laboratory of Aging Biology, Changsha, China.
| | - Pei Qian
- Department of Dermatology, Xiangya Hospital, Central South University, Hu Nan Key Laboratory of Aging Biology, Changsha, China.
| | - Yan Tang
- Department of Dermatology, Xiangya Hospital, Central South University, Hu Nan Key Laboratory of Aging Biology, Changsha, China.
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Hu Nan Key Laboratory of Aging Biology, Changsha, China.
| | - Fangfen Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Hu Nan Key Laboratory of Aging Biology, Changsha, China.
| | - Wei Shi
- Department of Dermatology, Xiangya Hospital, Central South University, Hu Nan Key Laboratory of Aging Biology, Changsha, China.
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Ryguła I, Pikiewicz W, Kaminiów K. Novel Janus Kinase Inhibitors in the Treatment of Dermatologic Conditions. Molecules 2023; 28:8064. [PMID: 38138551 PMCID: PMC10745734 DOI: 10.3390/molecules28248064] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/10/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Janus kinase inhibitors, also known as JAK inhibitors, JAKinibs or JAKi, are a new group of disease-modifying drugs. They work by inhibiting enzymes involved in the transmission of information from receptors located in the cell membrane to the cell interior, specifically to the cell nucleus, thus disrupting the JAK-STAT pathway. This pathway plays a role in key cellular processes such as the immune response and cell growth. This feature is used in the treatment of patients with rheumatological, gastroenterological and hematological diseases. Recently, it has been discovered that JAK-STAT pathway inhibitors also show therapeutic potential against dermatological diseases such as atopic dermatitis, psoriasis, alopecia areata and acquired vitiligo. Studies are underway to use them in the treatment of several other dermatoses. Janus kinase inhibitors represent a promising class of drugs for the treatment of skin diseases refractory to conventional therapy. The purpose of this review is to summarize the latest knowledge on the use of JAKi in dermatological treatment.
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Affiliation(s)
- Izabella Ryguła
- Faculty of Medical Sciences in Katowice, Medical University of Silesia, 40-752 Katowice, Poland;
| | - Wojciech Pikiewicz
- Department of Medical and Health Sciences, Collegium Medicum—Faculty of Medicine, WSB University, 41-300 Dąbrowa Górnicza, Poland;
| | - Konrad Kaminiów
- Department of Medical and Health Sciences, Collegium Medicum—Faculty of Medicine, WSB University, 41-300 Dąbrowa Górnicza, Poland;
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Najafi MT, Abedini R, Ghandi N, Seraji S, Sadeghi Y. Is the severity of alopecia areata associated with arterial stiffness? JOURNAL OF RESEARCH IN MEDICAL SCIENCES : THE OFFICIAL JOURNAL OF ISFAHAN UNIVERSITY OF MEDICAL SCIENCES 2023; 28:80. [PMID: 38292334 PMCID: PMC10826848 DOI: 10.4103/jrms.jrms_375_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/20/2023] [Accepted: 08/16/2023] [Indexed: 02/01/2024]
Abstract
Background This study aimed to evaluate the severity of alopecia areata (AA) associations with metabolic syndrome, body composition evaluated by bioimpedance techniques, and arterial stiffness based on pulse-wave velocity analysis. Materials and Methods This cross-sectional study was conducted on patients referred to AA Clinic at Razi Hospital in 2021 and 2022. Patients with AA with the Severity of Alopecia Tool (SALT) score above 20% and receiving no systemic therapy were included. Patient demographic and clinical information, symptoms of metabolic syndrome, and bioimpedance factors were collected, and the relationship between disease severity, metabolic syndrome, and bioimpedance indicators was evaluated. Results In this study, 59 patients were examined, with 26 (44.07%) being female and 33 (55.93%) being male. The mean age of the patients was 37.42 years (standard deviation [SD] =11.28). The severity of the disease was assessed using the SALT score, with the mean severity in terms of the percentage being 69.83% (SD = 28.57%). In the regression model, SALT score was independently related to the severity of vascular stiffness after adjusting for the effect of other variables (beta = 0.033, 95% CI = 0.009-0.057, P = 0.046). Moreover, SALT score was significantly related to metabolic syndrome after adjusting for the effect of other variables (OR = 1.035, 95% CI = 1.012-1.059, P = 0.002). Conclusion This study found that AA severity is associated with a higher chance of having metabolic syndrome and arterial stiffness which may lead to cardiovascular diseases in patients with AA, and screening patients regarding cardiometabolic diseases is mandated.
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Affiliation(s)
| | - Robabeh Abedini
- Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Narges Ghandi
- Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Shadab Seraji
- Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Yasaman Sadeghi
- Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Liu Z, Liu X. Gut microbiome, metabolome and alopecia areata. Front Microbiol 2023; 14:1281660. [PMID: 38033589 PMCID: PMC10684942 DOI: 10.3389/fmicb.2023.1281660] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/24/2023] [Indexed: 12/02/2023] Open
Abstract
Alopecia areata (AA) is a type of dermatological disease characterized by rapid and non-scarring hair loss of the scalp or body skin that may be related to genetic, immunological and physiological factors. It is now believed that AA is associated with oxidative stress, autoimmune disease, neuropsychological factors, pathogens, immune checkpoint inhibitors and microecological imbalance under the premise of host genetic susceptibility. In recent years, studies have revealed the significant role of the gut microbiome or metabolome in many aspects of human health. Diverse studies have revealed that the gut microbiome and metabolome have an important influence on skin conditions. This review highlights the relationship between AA and the gut microbiome or metabolome to provide novel directions for the prevention, clinical diagnosis and treatment of AA.
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Affiliation(s)
- Zhiyu Liu
- School of Medicine of Zhejiang University, Hangzhou, China
| | - Xiaoyan Liu
- Department of Dermatology, The First Affiliated Hospital, School of Medicine of Zhejiang University, Hangzhou, China
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Huang J, Deng S, Li J, Tang Y, Liu F, Liu Y, Rao S, Shi W. Drug Survival and Long-term Outcome of Tofacitinib in Patients with Alopecia Areata: A Retrospective Study. Acta Derm Venereol 2023; 103:adv13475. [PMID: 37955531 PMCID: PMC10655123 DOI: 10.2340/actadv.v103.13475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 10/10/2023] [Indexed: 11/14/2023] Open
Abstract
Several non-randomized clinical trials and retrospective studies have demonstrated encouraging efficacy and well-tolerated safety of tofacitinib in the treatment of alopecia areata. However, there are scarce data on a large cohort of patients with alopecia areata in long-term real-world practice. This single-centre, retrospective, observational cohort study included 126 patients with alopecia areata treated with tofacitinib between February 2021 and December 2022. The aims of this study are to evaluate drug survival, effectiveness and safety of tofacitinib for treatment of alopecia areata, and to identify potential factors influencing long-term outcomes. Median duration of treatment was 23.00 (interquartile range (IQR) 15.00, 47.25) weeks. Median all-cause survival time of 126 patients treated with tofacitinib was 44 weeks (95% confidence interval (95% CI) 36.3, 51.7), and the all-cause drug retention rate at 12 weeks, 24 weeks and 48 weeks were 90.0%, 66.4% and 42.3%, respectively. The most common reason for discontinuation was complete remission/satisfaction. A total of 80 patients treated with tofacitinib for over 6 months were included in the efficacy analysis, the overall complete response rate at 24 weeks was 33.8% (27/80). No life-threatening serious adverse events occurred. Sex is an independent risk factor in predicting patient outcomes. This real-world study confirmed the high effectiveness and acceptable safety profile of tofacitinib in alopecia areata, with a satisfactory drug survival rate, and provides supporting data for the clinical application of tofacitinib in Chinese patients with alopecia areata.
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Affiliation(s)
- Jundong Huang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Sihan Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China; Hunan key laboratory of aging biology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yan Tang
- DDepartment of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fangfen Liu
- DDepartment of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yu Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China; Hunan key laboratory of aging biology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shijia Rao
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, PR China.
| | - Wei Shi
- DDepartment of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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Wu X, Du YZ. Nanodrug Delivery Strategies to Signaling Pathways in Alopecia. Mol Pharm 2023; 20:5396-5415. [PMID: 37817669 DOI: 10.1021/acs.molpharmaceut.3c00620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
Over 50% of the global population suffers from hair loss. The mixed results in the treatment of hair loss reveal the limitations of conventional commercial topical drugs. One the one hand, the definite pathogenesis of hair loss is still an enigma. On the other hand, targeted drug carriers ensure the drug therapeutic effect and low side effects. This review highlights the organization and overview of nine crucial signaling pathways associated with hair loss, as well as the development of nanobased topical delivery systems loading the clinical drugs, which will fuel emerging hair loss treatment strategies.
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Affiliation(s)
- Xiaochuan Wu
- Jinhua Institute of Zhejiang University, Jinhua, Zhejiang 321299, China
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yong-Zhong Du
- Jinhua Institute of Zhejiang University, Jinhua, Zhejiang 321299, China
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
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Dahabreh D, Jung S, Renert-Yuval Y, Bar J, Del Duca E, Guttman-Yassky E. Alopecia Areata: Current Treatments and New Directions. Am J Clin Dermatol 2023; 24:895-912. [PMID: 37606849 DOI: 10.1007/s40257-023-00808-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2023] [Indexed: 08/23/2023]
Abstract
Alopecia areata is an autoimmune hair loss disease that is non-scarring and is characterized by chronic inflammation at the hair follicle level. Clinically, patients' presentation varies from patchy, circumscribed scalp involvement to total body and scalp hair loss. Current management is guided by the degree of scalp and body involvement, with topical and intralesional steroid injections as primarily first-line for mild cases and broad immunosuppressants as the mainstay for more severe cases. Until recently, the limited number of blinded, randomized, placebo-controlled clinical trials for this disease had made establishing an evidence-based treatment paradigm challenging. However, growing insights into the pathogenesis of alopecia areata through blood and tissue analysis of human lesions have identified several promising targets for therapy. T-helper (Th) 1/interferon skewing has traditionally been described as the driver of disease; however, recent investigations suggest activation of additional immune mediators, including the Th2 pathway, interleukin (IL)-9, IL-23, and IL-32, as contributors to alopecia areata pathogenesis. The landscape of alopecia areata treatment has the potential to be transformed, as several novel targeted drugs are currently undergoing clinical trials. Given the recent US FDA approval of baricitinib and ritlecitinib, Janus kinase (JAK) inhibitors are a promising drug class for treating severe alopecia areata cases. This article will review the efficacy, safety, and tolerability of current treatments for alopecia areata, and will provide an overview of the emerging therapies that are leading the revolution in the management of this challenging disease.
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Affiliation(s)
- Dante Dahabreh
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, 5 E. 98th Street, New York, NY, 10029, USA
| | - Seungyeon Jung
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, 5 E. 98th Street, New York, NY, 10029, USA
- School of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Yael Renert-Yuval
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, USA
| | - Jonathan Bar
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, 5 E. 98th Street, New York, NY, 10029, USA
| | - Ester Del Duca
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, 5 E. 98th Street, New York, NY, 10029, USA
| | - Emma Guttman-Yassky
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, 5 E. 98th Street, New York, NY, 10029, USA.
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