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Li S, Huang Y, Sun Y, Lu T, Dong Y, Yu S, Zhang X, Hu H. Panax notoginseng saponins loaded W/O microemulsion for alopecia therapy with panthenol as cosurfactant to reduce skin irritation. Int J Pharm 2024; 663:124585. [PMID: 39147248 DOI: 10.1016/j.ijpharm.2024.124585] [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: 05/29/2024] [Revised: 08/09/2024] [Accepted: 08/12/2024] [Indexed: 08/17/2024]
Abstract
The etiology of alopecia is so complex that current therapies with single-mechanism and attendant side-effects during long-term usage, are insufficient for treatment. Panax notoginseng saponins (PNS) is supposed to treat alopecia with multiple mechanisms, but difficult to penetrate skin efficiently due to water-solubility. Here, we designed water-in-oil microemulsion (PNS ME) using jojoba oil, fractioned coconut oil, RH 40 + Span 80 and cosurfactant D-panthenol, to help PNS penetrating the skin. Particularly, D-panthenol not only enlarges the microemulsion area, reduces the usage amounts of surfactants thus relieves skin irritation, but stimulates the migration of dermal papilla cells (DPCs), displaying cooperative effects on anti-alopecia. PNS ME penetrates through sebum-rich corneum via high-affinity lipid fusion, targets to hair follicles (HFs), where it resides in skin for sustained drug release, accelerates angiogenesis to build well-nourished environment for HFs, and facilitates the proliferation and migration of DPCs in vitro. PNS ME markedly improved hair density, skin pigmentation, new hair weight, skin thickness, and collagen generation of telogen effluvium mice. Moreover, PNS also took outstanding curative effects on androgenetic alopecia mice. Upon further exploration, PNS ME caused dramatic upregulations of β-catenin, VEGF and Ki67, suggesting it might function by triggering Wnt/β-catenin pathway, accelerating vessels formation, and activating the hair follicle stem cells. Notably, PNS ME indicated longer-term safety than minoxidil tincture. Together, PNS ME provides a comprehensive strategy for alopecia, especially it avoids defects by high-proportioned surfactants in traditional microemulsion, exhibiting milder and safer, which shows bright prospect of applying microemulsion in hair growth promotion.
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Affiliation(s)
- Shuxuan Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, University Town, Guangzhou 510006, PR China
| | - Yihua Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, University Town, Guangzhou 510006, PR China
| | - Yingying Sun
- School of Pharmaceutical Sciences, Sun Yat-sen University, University Town, Guangzhou 510006, PR China
| | - Tianli Lu
- School of Pharmaceutical Sciences, Sun Yat-sen University, University Town, Guangzhou 510006, PR China
| | - Yating Dong
- School of Pharmaceutical Sciences, Sun Yat-sen University, University Town, Guangzhou 510006, PR China
| | - Shihui Yu
- School of Pharmaceutical Sciences, Sun Yat-sen University, University Town, Guangzhou 510006, PR China
| | - Xuefei Zhang
- School of Traditional Dai-Thai Medicine, West Yunnan University of Applied Sciences, Jinghong 666100, PR China.
| | - Haiyan Hu
- School of Pharmaceutical Sciences, Sun Yat-sen University, University Town, Guangzhou 510006, PR China; State Key Laboratory of Anti-Infective Drug Discovery and Development, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China; Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-sen University, University Town, Guangzhou 510006, PR China.
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2
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Nguyen NH, Taylor JM, Huang KX, Lee JC. Estrogen hormone therapy stabilizes lateral hairline in transfeminine patients: Implications for facial feminization surgery. J Plast Reconstr Aesthet Surg 2024:S1748-6815(24)00415-7. [PMID: 39153870 DOI: 10.1016/j.bjps.2024.07.044] [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: 04/30/2024] [Revised: 06/12/2024] [Accepted: 07/08/2024] [Indexed: 08/19/2024]
Abstract
BACKGROUND Although several studies report on the suppressing effects of estrogen therapy on facial and body hair in transgender and nonbinary (TGNB) individuals, few studies have elucidated its effects on hairline stability on the scalp. In this study, we assessed the influence of estrogen therapy on forehead length. METHODS All TGNB patients, aged 30 years or older, assigned male at birth (AMAB) seeking facial feminization surgery were included in the study. Central and forehead lengths were collected at the initial consultation visits. Variables, including age, duration of hormone replacement therapy (HRT), presence of spironolactone, and presence of other hair treatments, such as finasteride, dutasteride, or minoxidil, that potentially influence hair growth were collected by chart review. Multivariable linear regressions were constructed with relevant predictor variables while also incorporating global health scores as a proxy for psychological effects on hair loss. RESULTS Overall, 171 patients were included in this study, with a median age of 36.0 (interquartile range (IQR) 32.0-46.0) years and median HRT duration of 2.0 (IQR 1.0-6.0) years. Multivariable linear regressions revealed no significant predictors for central forehead length. However, lateral forehead length was positively predicted by age (B=0.06, 95% confidence interval (CI) [0.03-0.08], p < 0.001) and hair treatment (B=0.66, 95% CI [0.14-1.18], p = 0.01), but negatively predicted by HRT duration (B=-0.07, 95% CI [-0.10 to -0.04], p < 0.001). CONCLUSIONS Although older age is a predictor of lateral hairline recession in TGNB AMAB individuals, lateral forehead length was also predicted to decrease by 0.07 cm with each year of feminizing hormone therapy in patients over 30 years of age.
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Affiliation(s)
- Nghiem H Nguyen
- Division of Plastic and Reconstructive Surgery, Department of Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA 90095, USA
| | - Jeremiah M Taylor
- Division of Plastic and Reconstructive Surgery, Department of Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA 90095, USA
| | - Kelly X Huang
- Division of Plastic and Reconstructive Surgery, Department of Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA 90095, USA
| | - Justine C Lee
- Division of Plastic and Reconstructive Surgery, Department of Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA 90095, USA.
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Lim HW, Kim HJ, Jeon CY, Lee Y, Kim M, Kim J, Kim SR, Lee S, Lim DC, Park HD, Park BC, Shin DW. Hair Growth Promoting Effects of 15-Hydroxyprostaglandin Dehydrogenase Inhibitor in Human Follicle Dermal Papilla Cells. Int J Mol Sci 2024; 25:7485. [PMID: 39000592 PMCID: PMC11242524 DOI: 10.3390/ijms25137485] [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: 06/10/2024] [Revised: 06/29/2024] [Accepted: 07/03/2024] [Indexed: 07/16/2024] Open
Abstract
Prostaglandin E2 (PGE2) is known to be effective in regenerating tissues, and bimatoprost, an analog of PGF2α, has been approved by the FDA as an eyelash growth promoter and has been proven effective in human hair follicles. Thus, to enhance PGE2 levels while improving hair loss, we found dihydroisoquinolinone piperidinylcarboxy pyrazolopyridine (DPP), an inhibitor of 15-hydroxyprostaglandin dehydrogenase (15-PGDH), using DeepZema®, an AI-based drug development program. Here, we investigated whether DPP improved hair loss in human follicle dermal papilla cells (HFDPCs) damaged by dihydrotestosterone (DHT), which causes hair loss. We found that DPP enhanced wound healing and the expression level of alkaline phosphatase in DHT-damaged HFDPCs. We observed that DPP significantly down-regulated the generation of reactive oxygen species caused by DHT. DPP recovered the mitochondrial membrane potential in DHT-damaged HFDPCs. We demonstrated that DPP significantly increased the phosphorylation levels of the AKT/ERK and activated Wnt signaling pathways in DHT-damaged HFDPCs. We also revealed that DPP significantly enhanced the size of the three-dimensional spheroid in DHT-damaged HFDPCs and increased hair growth in ex vivo human hair follicle organ culture. These data suggest that DPP exhibits beneficial effects on DHT-damaged HFDPCs and can be utilized as a promising agent for improving hair loss.
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Affiliation(s)
- Hye Won Lim
- Research Institute for Biomedical and Health Science, Konkuk University, Chungju 27478, Chungcheongbuk-do, Republic of Korea; (H.W.L.); (C.Y.J.); (M.K.); (J.K.)
| | - Hak Joong Kim
- Innovo Therapeutics Inc., 507, Mapo-daero 38, Mapo-gu, Seoul 04174, Republic of Korea; (H.J.K.); (Y.L.); (S.L.); (D.C.L.); (H.D.P.)
| | - Chae Young Jeon
- Research Institute for Biomedical and Health Science, Konkuk University, Chungju 27478, Chungcheongbuk-do, Republic of Korea; (H.W.L.); (C.Y.J.); (M.K.); (J.K.)
| | - Yurim Lee
- Innovo Therapeutics Inc., 507, Mapo-daero 38, Mapo-gu, Seoul 04174, Republic of Korea; (H.J.K.); (Y.L.); (S.L.); (D.C.L.); (H.D.P.)
| | - Mujun Kim
- Research Institute for Biomedical and Health Science, Konkuk University, Chungju 27478, Chungcheongbuk-do, Republic of Korea; (H.W.L.); (C.Y.J.); (M.K.); (J.K.)
| | - Jinsick Kim
- Research Institute for Biomedical and Health Science, Konkuk University, Chungju 27478, Chungcheongbuk-do, Republic of Korea; (H.W.L.); (C.Y.J.); (M.K.); (J.K.)
| | - Soon Re Kim
- Basic and Clinical Hair Institute, Dankook University, 201, Manghyang-ro, Dongnam-gu, Cheonan-si 31116, Chungcheongnam-do, Republic of Korea; (S.R.K.); (B.C.P.)
| | - Sanghwa Lee
- Innovo Therapeutics Inc., 507, Mapo-daero 38, Mapo-gu, Seoul 04174, Republic of Korea; (H.J.K.); (Y.L.); (S.L.); (D.C.L.); (H.D.P.)
| | - Dong Chul Lim
- Innovo Therapeutics Inc., 507, Mapo-daero 38, Mapo-gu, Seoul 04174, Republic of Korea; (H.J.K.); (Y.L.); (S.L.); (D.C.L.); (H.D.P.)
| | - Hee Dong Park
- Innovo Therapeutics Inc., 507, Mapo-daero 38, Mapo-gu, Seoul 04174, Republic of Korea; (H.J.K.); (Y.L.); (S.L.); (D.C.L.); (H.D.P.)
| | - Byung Cheol Park
- Basic and Clinical Hair Institute, Dankook University, 201, Manghyang-ro, Dongnam-gu, Cheonan-si 31116, Chungcheongnam-do, Republic of Korea; (S.R.K.); (B.C.P.)
- Department of Dermatology, Dankook University Hospital, 201, Manghyang-ro, Dongnam-gu, Cheonan-si 31116, Chungcheongnam-do, Republic of Korea
| | - Dong Wook Shin
- Research Institute for Biomedical and Health Science, Konkuk University, Chungju 27478, Chungcheongbuk-do, Republic of Korea; (H.W.L.); (C.Y.J.); (M.K.); (J.K.)
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Fu H, Xu T, Zhao W, Jiang L, Shan S. Roles of gut microbiota in androgenetic alopecia: insights from Mendelian randomization analysis. Front Microbiol 2024; 15:1360445. [PMID: 38628866 PMCID: PMC11018880 DOI: 10.3389/fmicb.2024.1360445] [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: 12/23/2023] [Accepted: 03/13/2024] [Indexed: 04/19/2024] Open
Abstract
Background Androgenetic alopecia (AGA) is the most common type of androgen-associated hair loss. Previous studies have indicated an association between the gut microbiota and AGA. To delve deeper, we executed a two-sample Mendelian randomization (MR) analysis to investigate the potential causal relationship between the gut microbiota and AGA. Methods A two-sample MR investigation was utilized to delve into the intricate interplay between gut microbiota and AGA. Information regarding 211 gut microbial taxa was sourced from the MiBioGen consortium. The summary statistics of the genome-wide association studies (GWAS) for AGA were obtained from the FinnGen biobank, which included 195 cases and 201,019 controls. Various analytical approaches, including Inverse Variance Weighting (IVW), Weighted Median, MR-Egger, Weighted Mode, and Simple Mode were employed to evaluate the causal impact of gut microbiota on AGA. Sensitivity analyses were subsequently conducted to affirm the robustness of the findings. Results A two-sample MR investigation unveiled the genus Olsenella, genus Ruminococcaceae UCG-004, and genus Ruminococcaceae UCG-010 were identified as risk factors associated with AGA. In contrast, the family Acidaminococcaceae and genus Anaerofilum, along with the genus Ruminiclostridium 9, demonstrated a protective effect. The sensitivity analyses provided additional assurance that the findings of the current study were less susceptible to the influence of confounding variables and biases. Conclusion The MR study has established a link between specific gut microbiota and AGA, offering evidence for the identification of more precisely targeted probiotics. This discovery has the potential to aid in the prevention, control, and reversal of AGA progression.
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Affiliation(s)
- Haijing Fu
- Department of Dermatology, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Tianyi Xu
- Department of Dermatology, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Wumei Zhao
- Department of Dermatology, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Leiwei Jiang
- Department of Dermatology, Guizhou Provincial People’s Hospital, Guiyang, China
| | - Shijun Shan
- Department of Dermatology, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- Hangzhou Third People’s Hospital, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, Hangzhou, 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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Popescu FM, Filip L, Popescu M. FUE as the first surgical option for hair reconstruction on scalp and facial skin grafts - case report. J Med Life 2024; 17:233-235. [PMID: 38813359 PMCID: PMC11131638 DOI: 10.25122/jml-2023-0492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 02/05/2024] [Indexed: 05/31/2024] Open
Abstract
Post-combustion alopecia presents a complex medical challenge with implications spanning dermatological and psychiatric disorders. The use of hair transplantation has proven to be a significant improvement for this condition. However, the current management involves various techniques, each with advantages and disadvantages. Progressive skin expansions, surgical scar reduction, and skin grafts containing hair follicles yield unsatisfactory aesthetic outcomes and have limited applicability as a first-line treatment for fire victims. So far, follicular unit extraction (FUE) has proven to be one of the most versatile procedures in such cases, having the potential to restore a natural anatomical profile closely resembling the pre-traumatic appearance that led to the traumatic alopecia. Additionally, it contributes to the improvement of associated psychiatric comorbidities, facilitating proper social reintegration and enhancing overall quality of life. This report focuses on a case of post-combustion alopecia and severe facial distortion due to third-degree burns resulting in severe psychiatric comorbidities, which benefited from a proper social reintegration and improvement of the quality of life after three consecutive sessions of FUE for scalp and eyebrow hair.
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Affiliation(s)
- Felix Mircea Popescu
- Department of Plastic and Reconstructive Surgery, Dr. Felix Hospital for Hair Reconstructive Surgery, Bucharest, Romania
| | - Lidia Filip
- Department of Aesthetic Dermatology, M1 Med Beauty Clinic, Bucharest, Romania
| | - Matei Popescu
- Research Department, Dr. Felix Hospital for Hair Reconstructive Surgery, Bucharest, Romania
- Nova Southeastern University, Florida, United States of America
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Rodríguez-Acosta ED, Nieto DF, Berna-Rico E, Galván-García HR, Meza-Castro RG, Rosales-Lerma AK, Guerrero-Cervantes AV, Ramírez-Marín HA. Assessing the Efficacy of Monthly 308 nm Excimer Lamp Double-Stacked Pulse Adjusted Therapy for Alopecia Areata. Skin Appendage Disord 2024; 10:18-25. [PMID: 38313573 PMCID: PMC10836865 DOI: 10.1159/000533993] [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: 03/22/2023] [Accepted: 09/01/2023] [Indexed: 02/06/2024] Open
Abstract
Introduction Alopecia areata (AA) is an autoimmune disease characterized by T cell-mediated attack on the hair follicle. Although there are a wide range of therapies, the majority of them are not satisfactory due to side effects, pain due to intralesional injections or limited efficacy. In this study, we sought to evaluate the efficacy, influence factors, and safety of 308 nm excimer lamp used in a monthly basis in a double-stacked pulse manner for the treatment of AA. Methods This was a prospective study, using 308 nm excimer lamp in a double-stacked pulse therapy for AA. The primary endpoint was the improvement in SALT score. Results A total of 40 patients with AA were enrolled in this study. Forty (100%) patients achieved clinical response. Hyperpigmentation and erythema occurred on the treated alopecic areas of all patients but they were considered tolerable. Patients of younger age or with a smaller area of affection had a better overall treatment response. Conclusion 308 nm excimer lamp therapy is an excellent option for single or multiple AA because it achieves a good clinical response with less adverse effects than other therapies. This therapy may be useful for low-income countries where new JAK inhibitors are not available, however, for patients with extensive hair loss, it is not as effective and thus, it may be unfit for patients with alopecia totalis and alopecia universals.
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Affiliation(s)
| | - Diego Fernandez Nieto
- TricoHRC Research Group, Trichology Unit, Dermatology Department, Ramón y Cajal University Hospital, Instituto Ramon y Cajal de Investigación Sanitaria, University of Alcala, Madrid, Spain
- Trichology and Hair Transplantation Unit, Grupo Pedro Jaen Clinic, Madrid, Spain
| | - Emilio Berna-Rico
- TricoHRC Research Group, Trichology Unit, Dermatology Department, Ramón y Cajal University Hospital, Instituto Ramon y Cajal de Investigación Sanitaria, University of Alcala, Madrid, Spain
- Trichology and Hair Transplantation Unit, Grupo Pedro Jaen Clinic, Madrid, Spain
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Clarke-Jeffers P, Keyte R, Connabeer K. "Hair is your crown and glory" - Black women's experiences of living with alopecia and the role of social support. HEALTH PSYCHOLOGY REPORT 2024; 12:154-165. [PMID: 38628276 PMCID: PMC11016946 DOI: 10.5114/hpr/177730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/05/2023] [Accepted: 12/28/2023] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Alopecia is an autoimmune condition that results in hair loss, mainly from the scalp. There are three specific types of autoimmune alopecia: alopecia areata (AA; small patches of hair loss), alopecia totalis (AT; total hair loss from the scalp) and alopecia universalis (AU; total hair loss from the scalp and body). Whilst research has explored the experiences of White women living with alopecia, there is a lack of research exploring the impact of alopecia on women in the Black community. The current study aimed to explore Black women's experience of living with autoimmune types of alopecia with a focus on the cultural importance of hair within the Black community and the impact of social support. PARTICIPANTS AND PROCEDURE Seven Black women (age range: 37-68 years; mean age: 51 years) were recruited purposively through alopecia support group organisations and social media to participate in a semi-structured interview; four participants were diagnosed with AA, two participants were diagnosed with AU, and one participant was diagnosed with AT. One-to-one interviews were conducted online, and interpretative phenomenological analysis was used to guide data collection and analysis. RESULTS Participants discussed the significance of hair specifically within the Black community and the complex relationship between psychological wellbeing, coping and seeking support. CONCLUSIONS This novel area, specific to Black women's psychological experience of alopecia, acknowledges the influence of cultural and ethnic differences. The findings suggest that proactive awareness from health professionals and social support groups are needed due to the nuances of Black women's alopecia experience to provide better support and to enhance the quality of life for Black women to manage their alopecia.
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Affiliation(s)
| | - Rebecca Keyte
- Birmingham City University, Birmingham, United Kingdom
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Kazan D. Evaluating the Effect of the Demographic, Trichoscopic and Laboratory Characteristics on The Recurrence of Alopecia Areata. Dermatol Pract Concept 2024; 14:dpc.1401a68. [PMID: 38364439 PMCID: PMC10868910 DOI: 10.5826/dpc.1401a68] [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: 09/20/2023] [Indexed: 02/18/2024] Open
Abstract
INTRODUCTION Alopecia areata (AA) has diverse disease characteristics and multiple factors may interfere with the prognosis of the disease. OBJECTIVES In this study, the factors affecting the AA recurrence were evaluated. METHODS A total of a hundred patients diagnosed with AA between June 2022 and March 2023 were included in this retrospective, cross-sectional study. The patients were divided into two groups according to the presence of outbreaks. Both groups were compared in terms of age, gender, disease duration, number of outbreaks, family history of AA, previous medical treatment history for AA, clinical type, disease severity, presence of accompanying nail findings, and trichoscopic and laboratory characteristics. RESULTS Among 100 patients, male dominance was found (N = 69). Most of the patients had patchy disease (90/100), mild disease severity (88/100), and a solitary outbreak (65/100). Male gender, longer disease duration, family history, presence of S2 severity of alopecia tool score, trachyonychia, short vellus hairs in trichoscopic examination, hypothyroidism, and folic acid deficiency were factors for AA outbreaks. Male gender and the presence of a family member with AA in the family were defined as the independent prognostic factors for disease recurrence. CONCLUSIONS While demographic, laboratory, and clinical findings are factors for AA outbreaks in the follow-up, male gender and family history should be considered independent predictors.
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Affiliation(s)
- Didem Kazan
- Kutahya Health Sciences University Evliya Celebi Education and Research Hospital, Kutahya, Turkey
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10
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Nzeng LFM, Nguefack-Tsague G, Tounouga DN, Soumah MM, Mbang FAA, Sigha OB, Nkoro GA, Kotto R, Kouotou EA. Factors associated with traction alopecia in women living in Yaoundé (Cameroon). BMC Womens Health 2023; 23:577. [PMID: 37940913 PMCID: PMC10631135 DOI: 10.1186/s12905-023-02716-2] [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: 11/01/2022] [Accepted: 10/17/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND Traction alopecia (TA) is very common in Africa but few studies on African population are available. We sought to determine factors associated with TA and measure the association between these factors and TA. METHODS We carried out an analytical cross-sectional study in 29 hairdressing saloons in the city of Yaoundé. A questionnaire was administered and scalp exams were performed in order to look for TA and determine Marginal TA severity score if present. Participants were separated in two groups: TA group and a group without TA. RESULTS We finally included 223 women (77 having TA and 146 without TA). The median age was 26 years for women with TA and 24 years for women without TA. The factors associated with traction alopecia we found included: age ≥ 35 years (adjusted OR = 4; p = 0.016). Hairdressing undertaken by hairdressers only (adjusted OR = 0.2; p = 0.008), the avoidance of the regular use of nets, caps and head ties (OR = 0.2; p = 0.006) and relaxing hairs once a year or less (adjusted OR = 0.2; p = 0.005) could be protective factors. As well, we found a positive correlation between age and TA severity (r = 0.235; p < 0.001). CONCLUSION Age and some haircare practices are associated to TA occurrence in our context. Women therefore need to be educated on these various factors that could be able to cause, worsen or prevent TA.
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Affiliation(s)
| | | | | | - Mohamed Maciré Soumah
- University Teaching Hospital of Conakry, Gamal Abdel Nasser University of Conakry, Conakry, Guinea
| | | | | | - Grace Anita Nkoro
- Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon
| | - Rose Kotto
- Faculty of Medicine and Pharmaceutic Sciences, University of Douala, Douala, Cameroon
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Li P, Sun Y, Nie L, Shavandi A, Yunusov KE, Hua Y, Jiang G. Fabrication of carboxymethyl cellulose/hyaluronic acid/polyvinylpyrrolidone composite pastes incorporation of minoxidil-loaded ferulic acid-derived lignin nanoparticles and valproic acid for treatment of androgenetic alopecia. Int J Biol Macromol 2023; 249:126013. [PMID: 37517761 DOI: 10.1016/j.ijbiomac.2023.126013] [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: 05/16/2023] [Revised: 07/22/2023] [Accepted: 07/25/2023] [Indexed: 08/01/2023]
Abstract
Androgenetic alopecia (AGA) is a transracial and cross-gender disease worldwide with a higher prevalence among young individuals. Traditional oral or subcutaneous injections are often used to treat AGA, however, they may cause severe side-effects and therefore effective treatments for AGA are currently lacking. In this work, to treat AGA, we developed a composite paste system based on minoxidil (MXD)-loaded nanoparticles and valproic acid (VPA) with the assistance of roller-microneedles (roller-MNs). The matrix of composite paste systems is carboxymethyl cellulose (CMC), hyaluronic acid (HA) and polyvinylpyrrolidone (PVP). The roller-MNs can create microchannels in the skin to enhance drug transdermal efficiency. With the combined effects of the stimulation hair follicle (HF) regrowth by upregulating Wnt/beta-catenin of VPA and the mechanical microchannels induced by roller-MNs, the as-prepared composite paste systems successfully boost perifollicular vascularization, and activate hair follicle stem cells, thereby inducing notably faster hair regeneration at a lower administration frequency on AGA mouse model compared with minoxidil. This approach offers several benefits, including the avoidance of efficacy loss due to the liver's first-pass effect associated with oral drug, reduction in the risk of infection from subcutaneous injection, and significant decrease in the side effects of lower-dose MXD.
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Affiliation(s)
- Peixin Li
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China; International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers, Hangzhou, 310018, China
| | - Yanfang Sun
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Lei Nie
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China
| | - Amin Shavandi
- Université Libre de Bruxelles (ULB), École Polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium
| | - Khaydar E Yunusov
- Institute of Polymer Chemistry and Physics, Uzbekistan Academy of Sciences, Tashkent 100128, Uzbekistan
| | - Yinjian Hua
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China; International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers, Hangzhou, 310018, China
| | - Guohua Jiang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China; International Scientific and Technological Cooperation Base of Intelligent Biomaterials and Functional Fibers, Hangzhou, 310018, China.
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12
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Elshall AA, Ghoneim AM, Abd-Elmonsif NM, Osman R, Shaker DS. Boosting hair growth through follicular delivery of Melatonin through lecithin-enhanced Pickering emulsion stabilized by chitosan-dextran nanoparticles in testosterone induced androgenic alopecia rat model. Int J Pharm 2023; 639:122972. [PMID: 37084830 DOI: 10.1016/j.ijpharm.2023.122972] [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: 02/22/2023] [Revised: 04/12/2023] [Accepted: 04/15/2023] [Indexed: 04/23/2023]
Abstract
The strategy in this work was loading Melatonin (MEL), the powerful antioxidant photosensitive molecule, in novel Pickering emulsions (PEs) stabilized by chitosan-dextran sulphate nanoparticles (CS-DS NPs) and enhanced by lecithin, for treatment of androgenic alopecia (AGA). Biodegradable CS-DS NPs dispersion was prepared by polyelectrolyte complexation and optimized for PEs stabilization. PEs were characterized for droplet size, zeta potential, morphology, photostability and antioxidant activity. Ex-vivo permeation study through rat full thickness skin was conducted with optimized formula. Differential tape stripping trailed by cyanoacrylate skin surface biopsy was executed, for quantifying MEL in skin compartments and hair follicles. In-vivo evaluation of MEL PE hair growth activity was performed on testosterone induced AGA rat model. Visual inspection followed by anagen to telogen phase ratio (A/T) and histopathological examinations were conducted and compared with marketed 5% minoxidil spray "Rogaine ®". Data showed that PE improved MEL antioxidant activity and photostability. Ex-vivo results displayed MEL PE high follicular deposition. In-vivo study demonstrated that MEL PE treated testosterone induced AGA rat group, restored hair loss and produced maximum hair regeneration along with prolonged anagen phase amongst tested groups. The histopathological examination revealed that MEL PE prolonged anagen stage, increased follicular density and A/T ratio by 1.5-fold. The results suggested that lecithin-enhanced PE stabilized by CS-DS NPs was found to be an effective approach to enhance photostability, antioxidant activity and follicular delivery of MEL. Thus, MEL-loaded PE could be a promising competitor to commercially marketed Minoxidil for treatment of AGA.
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Affiliation(s)
- Asmaa A Elshall
- Department of Applied Biotechnology, Biotechnology School, Nile University, Sheikh Zayed, Giza, Egypt.
| | - Amira M Ghoneim
- Department of Pharmaceutics &Pharmaceutical Technology, Faculty of Pharmacy, Future University in Egypt (FUE), Cairo, Egypt.
| | - Nehad M Abd-Elmonsif
- Department of Oral Biology, Faculty of oral and dental medicine, Future University in Egypt (FUE), Cairo, Egypt
| | - Rihab Osman
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Dalia S Shaker
- Department of Pharmaceutics &Pharmaceutical Technology, Faculty of Pharmacy, Future University in Egypt (FUE), Cairo, Egypt
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13
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Nilforoushzadeh MA, Golparvaran M, Yekaninejad MS. Assessment of quality of life and self-esteem in male patients with androgenetic alopecia before and after hair transplantation. J Cosmet Dermatol 2023. [PMID: 36912697 DOI: 10.1111/jocd.15716] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/07/2023] [Accepted: 02/28/2023] [Indexed: 03/14/2023]
Abstract
BACKGROUND Patients with androgenetic alopecia experience a significant decrease in self-esteem and quality of life. There are several methods by which these factors may be improved. AIMS Determining whether patients feel better about themselves with a better quality of life after undergoing hair transplant procedure. PATIENTS/METHODS 35 people were chosen from Jordan Skin and Hair Clinic in Tehran, Iran. Following hair transplant, follow-up subjects had their quality of life and level of self-esteem assessed using the Rosenberg Self-Esteem Scale (RSES) and Dermatology Life Quality Index (DLQI), respectively. The means of quantitative results were compared using paired T-test. The chi-square test was done to compare preoperative and postoperative characteristics qualitatively. Differences were regarded significant if p < 0.05. Analysis of covariance was applied to evaluate the effect of marital status and educational level on outcome variables (ANCOVA). RESULTS Our findings showed a statistically significant difference (p < 0.001) between pre- and post-operative hair transplantation for quality of life, and mean score increased to 2.17. There was a statistically significant difference between the two groups, with an average self-esteem score on RSES rising to 5.35 (p < 0.001). A statistically significant link between educational achievement and quality of life was found (p < 0.001). CONCLUSION This study found postoperative psychological aspects of AGA patients significantly improve than preoperative. Our results show that there is a statistically significant difference between the self-esteem and quality of life of AGA patients before and after hair restoration surgery.
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Affiliation(s)
- Mohammad Ali Nilforoushzadeh
- Skin and Stem Cell Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Jordan Dermatology and Hair Transplantation Center, Tehran, Iran
| | - Maryam Golparvaran
- Skin and Stem Cell Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Jordan Dermatology and Hair Transplantation Center, Tehran, Iran
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14
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Makhlouf A, Elnawawy T. Hair regrowth boosting via minoxidil cubosomes: Formulation development, in vivo hair regrowth evaluation, histopathological examination and confocal laser microscopy imaging. Int J Pharm 2023; 634:122665. [PMID: 36736676 DOI: 10.1016/j.ijpharm.2023.122665] [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: 11/11/2022] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023]
Abstract
Minoxidil has been used as an effective and cost-efficient topical treatment for androgenic alopecia. However, due to its poor water solubility, commercially available formulations contain alcohol and propylene glycol in a concentration that causes skin reactions such as irritation and dryness. Therefore, nanotechnology-based formulations can offer an alternative that might increase penetration and deposition of the drug in the skin while minimizing its adverse reactions. Minoxidil cubosomes (MXD-CUB) were prepared by melt dispersion emulsification technique according to full 23 factorial design. Three independent variables, namely, the dispersed phase concentration, glyceryl monooleate: Poloxamer 407 ratio and Tween 80 concentration were tested. Particle size, polydispersity index and the zeta potential were the dependent variables. The optimized formula was investigated by transmission electron microscopy, X-ray diffractometry and in vitro release test. In vivo study included Draize test, histopathological examination, hair regrowth efficacy and confocal laser scanning microscopy (CLSM). Particle size, zeta potential and polydispersity index of the optimal MXD-CUB were measured to be 131.10 ± 1.41 nm, -23.5 ± 0.42 mV and 0.185 ± 0.0, respectively, and its entrapment efficiency was 80.4 ± 4.04 %. Draize test and histopathological testing proved safety and tolerability of MXD-CUB. In vivo hair regrowth study revealed greater hair growth boosting effect of the prepared cubosomes compared to minoxidil solution. CLSM proved superior penetration and retention of rhodamine B-loaded cubosomes in the skin compared to rhodamine B solution. Therefore, MXD-CUB can be a safe and effective dosage form for minoxidil that overcome the drawbacks of the commercial formulations.
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Affiliation(s)
- Amal Makhlouf
- Faculty of Pharmacy, Department of Pharmaceutics and Industrial Pharmacy, Cairo University, Cairo, Egypt.
| | - Tayseer Elnawawy
- Department of pharmaceutics, Egyptian Drug Authority, Cairo, Egypt
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15
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Mostaghimi A, Gao W, Ray M, Bartolome L, Wang T, Carley C, Done N, Swallow E. Trends in Prevalence and Incidence of Alopecia Areata, Alopecia Totalis, and Alopecia Universalis Among Adults and Children in a US Employer-Sponsored Insured Population. JAMA Dermatol 2023; 159:411-418. [PMID: 36857069 PMCID: PMC9979012 DOI: 10.1001/jamadermatol.2023.0002] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Importance Alopecia areata (AA) is characterized by nonscarring hair loss of the scalp, face, and/or body. Alopecia totalis (AT) and alopecia universalis (AU) involve complete loss of the scalp and body hair, respectively. The epidemiology of AA in the US remains unclear, having previously been extrapolated from older studies that were limited to specific geographic areas or clinical settings, or from self-reported data. Objective To estimate the annual prevalence and incidence of AA and AT and/or AU (AT/AU) in the US. Design, Setting, and Participants This retrospective, population-based cohort study was conducted from January 2016 to December 2019 and included enrollees in the IBM MarketScan Commercial Claims and Encounters and Medicare Supplemental databases and their dependents, with plan enrollment during each study calendar year and the year prior. Exposures Prevalent cases were identified by 1 or more claims for AA or AT/AU (International Statistical Classification of Diseases, Tenth Revision, Clinical Modification [ICD-10-CM] codes L63.x, L63.0, L63.1) during each year of interest or the year prior. Incident cases were identified by 1 or more claims for AA or AT/AU during a specific year and no diagnosis the year prior. Main Outcomes and Measures Annual incidence and prevalence rates were calculated and stratified by age, sex, and region. National employer-sponsored insurance population estimates were obtained using population-based weights. Results Among eligible patients (2016: n = 18 368 [mean (SD) age, 40.6 (17.9) years; 12 295 women (66.9%)]; 2017: n = 14 372 [mean (SD) age, 39.6 (17.7) years; 9195 women (64.0%)]; 2018: n = 14 231 [mean (SD) age, 38.9 (17.3) years; 8998 women (63.2%)]; 2019: n = 13 455 [mean (SD) age, 39.1 (17.4) years; 8322 women (61.9%)]), AA prevalence increased from 0.199% (95% CI, 0.198%-0.200%) in 2016 to 0.222% (95% CI, 0.221%-0.223%) in 2019. Roughly 5% to 10% of prevalent and incident cases of AA were AT/AU. The prevalence of AT/AU increased from 0.012% (95% CI, 0.012%-0.013%) to 0.019% (95% CI, 0.018%-0.019%) from 2016 to 2019. Incidence of AA per 100 000 person-years ranged from 87.39 (95% CI, 86.84-87.96) in 2017 to 92.90 (95% CI, 92.35-93.45) in 2019. Incidence of AT/AU ranged from 7.09 (95% CI, 6.94-7.25) in 2017 to 8.92 (95% CI, 8.75-9.09) in 2016. Prevalence and incidence of AA and AT/AU were higher among female vs male individuals, adults vs children and adolescents, and in the Northeast vs other regions. Conclusions and Relevance The results of this cohort study suggest that these recent AA prevalence and incidence estimates could help improve current understanding of the disease burden. Further research is warranted to elucidate subpopulation differences and trends in AA in the broader US population.
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Affiliation(s)
- Arash Mostaghimi
- Brigham and Women’s Hospital, Harvard University, Boston, Massachusetts
| | - Wei Gao
- Analysis Group Inc, Boston, Massachusetts
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16
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Mbussuh Nzeng LF, Nguefack‐Tsague G, Kotto R, Tounouga DN, Sigha OB, Nkoro GA, Nida M, Kouotou EA. Hair care and epidemiological-clinical profile of traction alopecia among women in hair salons in Yaoundé, Cameroon. SKIN HEALTH AND DISEASE 2023; 3:e158. [PMID: 36751322 PMCID: PMC9892458 DOI: 10.1002/ski2.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 08/04/2022] [Accepted: 08/10/2022] [Indexed: 11/10/2022]
Abstract
Background Hair is valued by all individuals especially women. The perception of beauty is specific to everyone. In order to fulfil their ideal beauty, women use various methods to modify their hair's appearance. Afro hair is particularly fragile, so using these methods can be particularly deleterious for black women's hair. Objectives Describe hair care practices of women living in Yaoundé, determine the prevalence of traction alopecia (TA) and describe its clinical profile. Methods We carried out a cross-sectional study in hairdressing saloon in Yaoundé. A questionnaire was administered and scalp exams were performed to determine Marginal TA severity score. Results We included 223 women with a mean age of 24.9 ± 7 years. The prevalence of TA was 34.5%. Mild and moderate stages were most represented. As far as haircare is concerned, extensions were regularly used by 95.1% of participants. Wigs were regularly worn by 58.7% of participants. Chemical hair straightening was done by 87.9% of women and was performed twice to thrice a year by 43.9%. Almost 76% of women used hair straightener and hair dryer. Hair washing was done monthly by 43.8% of participants and the main cosmetic used was shampoo (75.3%). Conclusion Traction alopecia is a very common disease in women living in Yaoundé. Extensions, wigs and shampooing are their main hair care practices.
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Affiliation(s)
| | | | - Rose Kotto
- Faculty of Medicine and Pharmaceutic SciencesUniversité of DoualaDoualaCameroon
| | | | | | - Grace Anita Nkoro
- Faculty of Medicine and Biomedical SciencesUniversité of Yaoundé 1YaoundeCameroon
| | - Martine Nida
- Faculty of Medicine and Pharmaceutic SciencesUniversité of DoualaDoualaCameroon
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17
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Li R, Yuan X, Zhang L, Jiang X, Li L, Zhang Y, Guo L, Dai X, Cheng H, Jiang X, Gou M. 3D printing of microneedle arrays for hair regeneration in a controllable region. MOLECULAR BIOMEDICINE 2023; 4:1. [PMID: 36602633 PMCID: PMC9816368 DOI: 10.1186/s43556-022-00102-2] [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: 07/20/2022] [Accepted: 11/07/2022] [Indexed: 01/06/2023] Open
Abstract
Hair loss is a common skin disease that causes intense emotional suffering. Hair regeneration in a personalized area is highly desirable for patients with different balding conditions. However, the existing pharmaceutical treatments have difficulty precisely regenerating hair in a desired area. Here, we show a method to precisely control the hair regeneration using customized microneedle arrays (MNAs). The MNA with a customized shape is fast fabricated by a static optical projection lithography process in seconds, which is a 3D printing technology developed by our group. In the mouse model, MNA treatment could induce hair regrowth in a defined area corresponding to the customized shape of MNA. And the regenerated hair promoted by MNAs had improved quality. Cellular and molecular analysis indicated that MNA treatment could recruit macrophages in situ and then initiate the proliferation of hair follicle stem cells, thereby improving hair regeneration. Meanwhile, the activation of the Wnt/β-catenin signaling pathway was observed in hair follicles. The expressions of Hgf, Igf 1 and Tnf-α were also upregulated in the treated skin, which may also be beneficial for the MNA-induced hair regeneration. This study provides a strategy to precisely control hair regeneration using customized microneedle arrays by recruiting macrophages in situ, which holds the promise for the personalized treatment of hair loss.
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Affiliation(s)
- Rong Li
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Xin Yuan
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, 610041 Chengdu, China ,grid.13291.380000 0001 0807 1581Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Li Zhang
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Xuebing Jiang
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Li Li
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Yi Zhang
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Linghong Guo
- grid.13291.380000 0001 0807 1581Department of Dermatology, West China Hospital, Sichuan University, 610041 Chengdu, China ,grid.13291.380000 0001 0807 1581Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Xide Dai
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Hao Cheng
- Huahang Microcreate Technology Co., Ltd, 610042 Chengdu, China
| | - Xian Jiang
- grid.13291.380000 0001 0807 1581Department of Dermatology, West China Hospital, Sichuan University, 610041 Chengdu, China ,grid.13291.380000 0001 0807 1581Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Maling Gou
- grid.13291.380000 0001 0807 1581State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, 610041 Chengdu, China
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18
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KULLAB J, SCHIELEIN MC, STUHLMANN CFZ, TIZEK L, WECKER H, KAIN A, BIEDERMANN T, ZINK A. Out-of-Pocket Costs in Alopecia Areata: A Cross-Sectional Study in German-speaking Countries. Acta Derm Venereol 2023; 103:adv00838. [PMID: 36598280 PMCID: PMC9885285 DOI: 10.2340/actadv.v103.4441] [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: 08/08/2022] [Accepted: 10/26/2022] [Indexed: 01/05/2023] Open
Abstract
Alopecia areata is a common skin disease which is associated with psychosocial and financial burden. No curative therapy exists and, hence, affected persons resort to self-financed cosmetic solutions. However, studies on the economic impact of alopecia areata on individuals are limited. To estimate annual individual out-of-pocket costs in persons with alopecia areata, a cross-sectional study using a standardized online questionnaire was performed in Germany, Austria and Switzerland. A total of 346 individuals (95.1% women, mean age: 38.5 ± 11.6 years) with alopecia areata participated between April and August 2020. Mean additional spending on everyday necessities was 1,248€ per person per year, which was significantly influenced by the duration of the illness, the treatment provider, and disease severity. Hair replacement products and cosmetics accounted for the highest monthly costs, followed by costs for physician visits, hospital treatments, and medication. Most participants (n = 255, 73.7%) were currently not undergoing treatment, due to lack of efficacy, side-effects, costs and acceptance of the disease. Sex differences in expenses were observed, with women having higher expenditures. Alopecia areata-related out-of-pocket costs place a considerable financial burden on affected individuals, are higher compared with those of other chronic diseases, and should be considered in economic assessments of the impact of this disease.
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Affiliation(s)
- Johaina KULLAB
- Department of Dermatology and Allergy, Technical University of Munich, School of Medicine, Munich, Germany
| | - Maximilian C. SCHIELEIN
- Department of Dermatology and Allergy, Technical University of Munich, School of Medicine, Munich, Germany
| | - Caroline F. Z. STUHLMANN
- The Graduate Center & Hunter College, City University of New York, Department of Psychology, New York, NY, USA,German Center for Health Services Research in Dermatology, Institute for Health Services Research in Dermatology and Nursing (IVDP), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Linda TIZEK
- Department of Dermatology and Allergy, Technical University of Munich, School of Medicine, Munich, Germany
| | - Hannah WECKER
- Department of Dermatology and Allergy, Technical University of Munich, School of Medicine, Munich, Germany
| | - Alphina KAIN
- Department of Dermatology and Allergy, Technical University of Munich, School of Medicine, Munich, Germany
| | - Tilo BIEDERMANN
- Department of Dermatology and Allergy, Technical University of Munich, School of Medicine, Munich, Germany
| | - Alexander ZINK
- Department of Dermatology and Allergy, Technical University of Munich, School of Medicine, Munich, Germany,Division of Dermatology and Venereology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
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19
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Jung DR, Yoo HY, Kim MJ, Singh V, Park SH, Jeong M, Park BJ, Shin JH. Comparative analysis of scalp and gut microbiome in androgenetic alopecia: A Korean cross-sectional study. Front Microbiol 2022; 13:1076242. [PMID: 36578576 PMCID: PMC9791053 DOI: 10.3389/fmicb.2022.1076242] [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: 10/21/2022] [Accepted: 11/21/2022] [Indexed: 12/14/2022] Open
Abstract
Androgenetic alopecia (AGA) is a non-scarring and progressive form of hair loss occurring in both men and women. Although genetic predisposition and sex steroid hormones are the main causes, many factors remain unknown, and various extrinsic factors can negatively affect the lifespan of hair. We investigated skin-gut axis microorganisms as potential exogenous factors causing AGA, through comparative analyses of the scalp and gut microbiome in individuals with and without AGA in a Korean cohort. Using 16S rRNA gene sequencing, we characterized the scalp and gut microbiomes of 141 individuals divided into groups by sex and presence of AGA. Alpha diversity indices in the scalp microbiome were generally higher in individuals with AGA than in healthy controls. These indices showed a strong negative correlation with scalp-inhabitant bacteria (Cutibacterium and Staphylococcus), indicating that the appearance of non-inhabitant bacteria increases as hair loss progresses. No significant differences in diversity were observed between the gut microbiomes. However, bacterial functional differences, such as bile acid synthesis and bacterial invasion of epithelial cells, which are related to intestinal homeostasis, were observed. The networks of the scalp and gut microbiome were more complex and denser with higher values of the network topology statistic coefficient values (i.e., transitivity, density, and degree centrality) and more unique associations in individuals with AGA than in healthy controls. Our findings reveal a link between skin-gut microorganisms and AGA, indicating the former's potential involvement in the latter's development. Additionally, these results provide evidence for the development of cosmetics and therapeutics using microorganisms and metabolites involved in AGA.
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Affiliation(s)
- Da-Ryung Jung
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Hye-Young Yoo
- Skin and Natural Products Lab, Kolmar Korea Co., Ltd., Seoul, South Korea
| | - Min-Ji Kim
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Vineet Singh
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Sung-Ha Park
- Skin and Natural Products Lab, Kolmar Korea Co., Ltd., Seoul, South Korea
| | - Minsoo Jeong
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Byoung-Jun Park
- Skin and Natural Products Lab, Kolmar Korea Co., Ltd., Seoul, South Korea,*Correspondence: Byoung-Jun Park,
| | - Jae-Ho Shin
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea,Department of Integrative Biotechnology, Kyungpook National University, Daegu, South Korea,NGS Core Facility, Kyungpook National University, Daegu, South Korea,Jae-Ho Shin,
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20
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Chen H, Ma X, Zhang M, Liu Z. Injectable and biofunctionalized fibrin hydrogels co-embedded with stem cells induce hair follicle genesis. Regen Biomater 2022; 10:rbac086. [PMID: 36683749 PMCID: PMC9847531 DOI: 10.1093/rb/rbac086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/25/2022] [Accepted: 10/08/2022] [Indexed: 01/25/2023] Open
Abstract
Fibrin-based hydrogels have been widely used in various tissue engineering because of their biocompatibility, biodegradability, tunable mechanical characteristics and nanofibrous structural properties. However, their ability to support stem cells for hair follicle neogenesis is unclear. In this study, we investigated the effect of fibrin hydrogels in supporting skin-derived precursors (SKPs) in hair follicle neogenesis. Our results showed that SKPs in fibrin hydrogels with high cell viability and proliferation, the stemness of SKPs could be maintained, and the expression of hair induction signature genes such as akp2 and nestin was enhanced. Moreover, hair follicle reconstruction experiments showed de novo hair genesis in mice and the hairs persisted for a long time without teratoma formation. More importantly, the blood vessels and sebaceous glands were also regenerated. Our study demonstrated that fibrin hydrogels are promising in hair follicle regeneration and have potential application in clinical settings for alopecia and wound healing.
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Affiliation(s)
- Haiyan Chen
- Correspondence address. E-mail: (H.C.); (Z.L.)
| | - Xiaoxiao Ma
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, People’s Republic of China
| | - Mengqi Zhang
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, People’s Republic of China
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Staphylococcus epidermidis Cicaria, a Novel Strain Derived from the Human Microbiome, and Its Efficacy as a Treatment for Hair Loss. Molecules 2022; 27:molecules27165136. [PMID: 36014376 PMCID: PMC9414784 DOI: 10.3390/molecules27165136] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/28/2022] [Accepted: 08/05/2022] [Indexed: 11/28/2022] Open
Abstract
The skin tissue of the scalp is unique from other skin tissues because it coexists with hair, and many differences in microbial composition have been confirmed. In scalp tissues, hair loss occurs due to a combination of internal and external factors, and several studies are being conducted to counteract this. However, not many studies have addressed hair loss from the perspective of the microbiome. In this study, subjects with hair loss and those with normal scalps were set as experimental and control groups, respectively. In the experimental group, hair loss had progressed, and there was a large difference in microbiome composition compared to the group with normal scalps. In particular, differences in Accumulibacter, Staphylococcus, and Corynebacterium were found. From Staphylococcus epidermidis Cicaria, two active components were isolated as a result of repeated column chromatography. Spectroscopic data led to the determination of chemical structures for adenosine and biotin. Fractions were obtained, and ex vivo tests were conducted using hair follicles derived from human scalp tissue. When the microbiome adenosine-treated group was compared to the control group, hair follicle length was increased, and hair root diameter was maintained during the experimental periods. In addition, the Cicaria culture medium and the microbial adenosine- and biotin-treated groups maintained the anagen phase, reducing progression to the catagen phase in the hair growth cycle. In conclusion, it was confirmed that the Cicaria culture medium and the microbial adenosine and biotin derived from the culture were effective in inhibiting hair loss.
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22
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Elshall AA, Ghoneim AM, Abdel-Mageed HM, Osman R, Shaker DS. Ex vivo permeation parameters and skin deposition of melatonin-loaded microemulsion for treatment of alopecia. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2022. [DOI: 10.1186/s43094-022-00418-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Melatonin (MEL) is a powerful antioxidant molecule with anti-androgenic property. A microemulsion (ME) system loaded with MEL was designed for treatment of androgenic alopecia. Pseudo-ternary phase diagram was constructed, and ME formulae were developed using coconut oil, Tween 80 and PEG 400. In the present study, MEL ME was characterized and evaluated for droplet size, polydispersity index, zeta potential, morphology using TEM imaging. MEL ex vivo permeation study through rat skin followed by tape stripping for stratum corneum (SC) was performed for different ME formulae, to determine skin permeation parameters and detect SC-MEL deposition.
Results
Spherical and uniform particles of MEL-loaded microemulsion were formulated with high stability. In ex vivo permeation study, MEL ME exhibited low steady-state skin flux along with pronounced SC deposition which prevailed a controlled release manner.
Conclusion
The results suggested that MEL ME could be a promising candidate for further permeation and in vivo studies for androgenic alopecia treatment.
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Park BS, Choi HI, Huh G, Kim WS. Effects of Exosome from Adipose-derived Stem Cell on Hair Loss: A Retrospective Analysis of 39 patients. J Cosmet Dermatol 2022; 21:2282-2284. [PMID: 35157363 DOI: 10.1111/jocd.14846] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 12/22/2021] [Accepted: 01/28/2022] [Indexed: 11/29/2022]
Affiliation(s)
| | - Hye-In Choi
- Prostemics Research Institute, Seoul, South Korea
| | - Gyoo Huh
- Department of Dermatology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Won-Serk Kim
- Department of Dermatology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
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Li X, Wang X, Wang C, Zhang J, Zhou C. Hair Shedding Evaluation for Alopecia: A Refined Wash Test. Clin Cosmet Investig Dermatol 2022; 15:117-126. [PMID: 35115799 PMCID: PMC8801509 DOI: 10.2147/ccid.s347898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 01/11/2022] [Indexed: 11/23/2022]
Abstract
PURPOSE The aim of this study is to establish a refined wash test (RWT) and explore the characteristics of daily shedding hair parameters in normal individuals and patients with androgenetic alopecia (AGA) or telogen effluvium (TE). MATERIALS AND METHODS Chinese subjects diagnosed as normal, AGA or TE were enrolled. For the RWT procedure, the subjects were asked to pre-wash their hair 24 hours before the first collection, then to wash and rinse their hair with flowing water above a sink covered with a piece of filtering cloth. All hairs entrapped in the filtering cloth were air dried and collected. This "wash-and-collect" process was repeated for 3 consecutive days with a 24 ± 2 hour interval. Collected hairs were counted manually, and hair diameter was measured by videodermoscope. Number and diameter of daily shedding hairs and percentage of vellus and terminal hairs were analyzed. RESULTS A total of 176 subjects participated in and completed the study. Shedding hair number during daily shampooing was 27.9 ± 12.2, 52.2 ± 28.5 and 125.5 ± 62.7 hairs in normal, AGA and TE participants, respectively, and the differences between each two of the three groups were all statistically significant. Diameter of shedding hairs was 76.9 ± 9.0 μm, 60.0 ± 9.5 μm and 82.7 ± 9.2 μm in normal, AGA and TE, respectively. Along with advancement of AGA severity, shedding hair number was generally increased, while hair diameter decreased. The percentage of vellus hairs in AGA was significantly higher than in the normal and TE groups (8.3 ± 6.6% vs 1.0 ± 1.6% and 1.0 ± 1.0%). The combination of shedding hair number and percentage of vellus hairs had a high diagnostic confidence (AUC = 0.957) to diagnose AGA from normal. Shedding hair number alone showed high confidence to diagnose TE from normal (AUC = 0.999). CONCLUSION The non-invasive, easy-to-use RWT established in this study is a valuable tool to evaluate daily shedding hairs, which may be useful in diagnosis, dynamic monitoring of disease progression and treatment efficacy.
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Affiliation(s)
- Xiangqian Li
- Department of Dermatology, Peking University People's Hospital, Beijing, People's Republic of China
| | - Xianghe Wang
- Department of Dermatology, Peking University People's Hospital, Beijing, People's Republic of China
| | - Chen Wang
- Department of Dermatology, Peking University People's Hospital, Beijing, People's Republic of China
| | - Jianzhong Zhang
- Department of Dermatology, Peking University People's Hospital, Beijing, People's Republic of China
| | - Cheng Zhou
- Department of Dermatology, Peking University People's Hospital, Beijing, People's Republic of China
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Wang Q, Sun Z, Li D, Ye K, Xie C, Zhang S, Jiang L, Zheng K, Pang Q. Determination of protonation state in molecular salt of minoxidil and 2,4-dihydroxybenzoic acid through a combined experimental and theoretical study: influence of proton transfer on biological activities. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131560] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sinikumpu SP, Jokelainen J, Auvinen J, Timonen M, Huilaja L. Association between psychosocial distress, sexual disorders, self-esteem and quality of life with male androgenetic alopecia: a population-based study with men at age 46. BMJ Open 2021; 11:e049855. [PMID: 39192534 PMCID: PMC8719200 DOI: 10.1136/bmjopen-2021-049855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 12/16/2021] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVES To study the association between androgenetic alopecia (AGA) and its severity with psychosocial well-being in male subjects aged 46 years at the population level. DESIGN Cross-sectional study. SETTING The Northern Finland Birth Cohort 1966 (NFBC1966). PARTICIPANTS Data were available for 892 male subjects aged 46 years. INTERVENTIONS Study subjects underwent comprehensive health examinations including a skin evaluation by dermatologists and determination of AGA according to the Norwood classification. They also filled in a questionnaire battery that included previously validated questionnaires: the Hopkins Symptom Checklist-25, the Beck Depression Inventory-II; the Generalised Anxiety Disorder Screener; a 15-dimensional measure of health-related quality of life; a 12-Item General Health Questionnaire. The battery also included questions about self-esteem and sexual health. MAIN OUTCOME MEASUREMENTS The presence of AGA and its severity, psychosocial well-being. RESULTS AGA was found in 68.5% of subjects, 27.8% of the cases were severe, 33.2% moderate and 39.0% mild. There was no significant association between the presence of AGA or its severity with depression, anxiety, quality of life, self-esteem or sexual symptoms. Those with severe AGA reported lower sexual activity when compared with those without AGA; however, the difference was not statistically significant. CONCLUSIONS Middle-aged men with AGA did not differ from men without AGA in terms of psychosocial well-being.
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Affiliation(s)
- Suvi-Päivikki Sinikumpu
- Department of Dermatology, Oulu University Hospital, Oulu, Finland
- PEDEGO Research Group, Medical Research Center, University of Oulu, Oulu, Pohjois-Pohjanmaa, Finland
| | - Jari Jokelainen
- Northern Finland Birth Cohorts, Arctic Biobank, Infrastructure for Population Studies, Faculty of Medicine, University of Oulu, Oulu, Pohjois-Pohjanmaa, Finland
| | - Juha Auvinen
- Center for Life Course Health Research, Faculty of Medicine, Medical Research Center, University of Oulu, Oulu, Pohjois-Pohjanmaa, Finland
| | - Markku Timonen
- Center for Life Course Health Research, Faculty of Medicine, Medical Research Center, University of Oulu, Oulu, Pohjois-Pohjanmaa, Finland
| | - Laura Huilaja
- Department of Dermatology, Oulu University Hospital, Oulu, Finland
- PEDEGO Research Group, Medical Research Center, University of Oulu, Oulu, Pohjois-Pohjanmaa, Finland
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Cai Z, Deng X, Jia J, Wang D, Yuan G. Ectodysplasin A/Ectodysplasin A Receptor System and Their Roles in Multiple Diseases. Front Physiol 2021; 12:788411. [PMID: 34938205 PMCID: PMC8685516 DOI: 10.3389/fphys.2021.788411] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 11/18/2021] [Indexed: 12/14/2022] Open
Abstract
Ectodysplasin A (EDA) is a member of the tumor necrosis factor (TNF) family of ligands that was initially reported to induce the formation of various ectodermal derivatives during normal prenatal development. EDA exerts its biological activity as two splice variants, namely, EDA-A1 and EDA-A2. The former binds to the EDA receptor (EDAR), resulting in the recruitment of the intracellular EDAR-associated death domain (EDARADD) adapter protein and the activation of the NF-κB signaling pathway, while the latter binds to a different receptor, EDA2R, also known as X-linked ectodermal dysplasia receptor (XEDAR). Inactivation mutation of the EDA gene or the genes coding for its receptors can result in hypohidrosis ectodermal dysplasia (HED), a condition that is characterized by oligotrichosis, edentulosis or oligodontia, and oligohidrosis or anhidrosis. Recently, as a new liver factor, EDA is gradually known and endowed with some new functions. EDA levels were observed to be upregulated in several metabolic diseases, such as non-alcoholic fatty liver disease (NAFLD), obesity, and insulin resistance. In addition, EDA and its receptors have been implicated in tumor pathogenesis through the regulation of tumor cell proliferation, apoptosis, differentiation, and migration. Here, we first review the role of EDA and its two-receptor system in various signaling pathways and then discuss the physiological and pathological roles of EDA and its receptors.
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Affiliation(s)
- Zhensheng Cai
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xia Deng
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jue Jia
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Dong Wang
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Guoyue Yuan
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
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Alomaish AR, Gosadi IM, Dallak FH, Durayb AA, Dallak AH, Hakami JA, Hakami AM, Alshamakhy AE, Mleeh NT. Prevalence of alopecia and its contributing factors among primary healthcare attendees in the Jazan region, Saudi Arabia. J Family Med Prim Care 2021; 10:3851-3856. [PMID: 34934691 PMCID: PMC8653465 DOI: 10.4103/jfmpc.jfmpc_1070_21] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/14/2021] [Accepted: 07/30/2021] [Indexed: 01/18/2023] Open
Abstract
Background Alopecia is a common health condition that can be associated with social and psychological consequences. Aims This study aims to estimate the prevalence of hair loss and its associated risk factors among primary healthcare center (PHC) attendees in the Jazan region. Methods This investigation was a cross-sectional study conducted in the Jazan region of southwest Saudi Arabia. A total of 23 PHCs were randomly selected from five governorates in the region. Data were collected via interviewing PHCs attendees and were asked about their demographic characteristics, presence of hair loss, and among attendees who confirmed having hair loss, they were further asked about associated clinical features, healthcare-seeking behavior, and factors that might contribute to the development of their condition. Results A total of 729 participants consented to be involved in this study. The number of respondents who reported having hair loss was 483, representing 66.3% of the whole sample. Gender appears to have the highest level of variability, with the majority of participants reporting hair loss being female (P < 0.001). The most frequently reported type of hair loss was telogen effluvium, followed by androgenic alopecia. A total of 185 respondents reported taking medications to treat their hair loss, of whom 108 (58.3%) did not seek any medical advice to identify the cause of their condition. Limitations The main weakness of this investigation is related to relying on a reported presence of hair loss without having it confirmed with a clinical diagnosis. Conclusion A minority of participants who reported suffering from hair loss were further evaluated by healthcare professionals to learn the cause of their hair loss. This may indicate the presence of poor hair care and the probability of a higher risk of hair loss requiring the development of suitable preventive strategies.
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Affiliation(s)
| | - Ibrahim M Gosadi
- Department of Family and Community Medicine, Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | | | - Amjad A Durayb
- Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Ali H Dallak
- Intensive Care Unit, Aseer Central Hospital, Aseer, Saudi Arabia
| | | | - Ayman M Hakami
- Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Arar E Alshamakhy
- Department of Dermatology, Prince Muhammad Bin Nassir Hospital, Jazan, Saudi Arabia
| | - Nouf T Mleeh
- Department of Dermatology, Faculty of Medicine, King Abdul-Aziz University, Jeddah, Saudi Arabia
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29
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Gender Differences in Psychosocial Outcomes of Hair Loss Resulting from Childhood Irradiation for Tinea Capitis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18157825. [PMID: 34360117 PMCID: PMC8345578 DOI: 10.3390/ijerph18157825] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 01/03/2023]
Abstract
Recent studies have linked hair loss due to childhood irradiation for tinea capitis, a fungal infection of the scalp, to adverse psychosocial and health outcomes in women. However, no study to date has examined gender differences in the outcomes of this type of hair loss. The current study aimed to investigate gender differences in health and psychosocial outcomes of hair loss resulting from childhood irradiation for tinea capitis, and to identify the risk factors associated with depression in both men and women. Medical records held at the archives of the Israel National Center for Compensation of Scalp Ringworm Victims were retrospectively reviewed for 217 women and 105 men who received maximum disability compensation due to severe hair loss resulting from irradiation for tinea capitis. We found that women were at increased risk of developing psychosocial symptoms, including depression. Gender emerged as a significant predictor of depression, distinct from other predictors, such as marital status, age at radiation, exposure to verbal and physical bullying, low self-esteem, social anxiety, and physical health problems. Thus, the psychosocial needs of patients, particularly female patients, who were irradiated for tinea capitis during childhood need to be taken into account by the healthcare professionals treating them.
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30
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Madrid M, Sumen C, Aivio S, Saklayen N. Autologous Induced Pluripotent Stem Cell-Based Cell Therapies: Promise, Progress, and Challenges. Curr Protoc 2021; 1:e88. [PMID: 33725407 DOI: 10.1002/cpz1.88] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The promise of human induced pluripotent stem cells (iPSCs) lies in their ability to serve as a starting material for autologous, or patient-specific, stem cell-based therapies. Since the first publications describing the generation of iPSCs from human tissue in 2007, a Phase I/IIa clinical trial testing an autologous iPSC-derived cell therapy has been initiated in the U.S., and several other autologous iPSC-based therapies have advanced through various stages of development. Three single-patient in-human transplants of autologous iPSC-derived cells have taken place worldwide. None of the patients suffered serious adverse events, despite not undergoing immunosuppression. These promising outcomes support the proposed advantage of an autologous approach: a cell therapy product that can engraft without the risk of immune rejection, eliminating the need for immunosuppression and the associated side effects. Despite this advantage, there are currently more allogeneic than autologous iPSC-based cell therapy products in development due to the cost and complexity of scaling out manufacturing for each patient. In this review, we highlight recent progress toward clinical translation of autologous iPSC-based cell therapies. We also highlight technological advancements that would reduce the cost and complexity of autologous iPSC-based cell therapy production, enabling autologous iPSC-based therapies to become a more commonplace treatment modality for patients. © 2021 The Authors.
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Affiliation(s)
| | - Cenk Sumen
- Stemson Therapeutics, San Diego, California
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31
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Kurtti A, Jagdeo J, Eisinger A, Sukhdeo K. New Diagnostic Tools to Evaluate Hair Loss. Dermatol Clin 2021; 39:375-381. [PMID: 34053591 DOI: 10.1016/j.det.2021.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The precise and reliable diagnosis of hair loss disorders is essential for developing a successful management plan. It is, thus, the responsibility of the dermatologist to select the appropriate diagnostic tools to effectively evaluate patients presenting with hair loss concerns. Fortunately, there is a growing body of noninvasive and invasive diagnostic resources, each with advantages and disadvantages. For the practicing dermatologist, tactile assessments and direct visualization are enhanced with scoring instruments, questionnaires, handheld trichoscopy, and scalp biopsy. For research and clinical study purposes, the more precise, high-resolution tools such as videodermoscopy, optical coherence tomography, and phototrichograms, may be useful.
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Affiliation(s)
- Alana Kurtti
- Rutgers Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA; Dermatology Service, VA New York Harbor Healthcare System, Brooklyn, NY 11209, USA
| | - Jared Jagdeo
- Dermatology Service, VA New York Harbor Healthcare System, Brooklyn, NY 11209, USA; Department of Dermatology, SUNY Downstate Medical Center, Brooklyn, NY 11203, USA
| | | | - Kumar Sukhdeo
- Pilaris, OnDERMAND Dermatology, New York, NY 10022, USA.
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32
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Xiong M, Zhang Q, Hu W, Zhao C, Lv W, Yi Y, Wang Y, Tang H, Wu M, Wu Y. The novel mechanisms and applications of exosomes in dermatology and cutaneous medical aesthetics. Pharmacol Res 2021; 166:105490. [PMID: 33582246 DOI: 10.1016/j.phrs.2021.105490] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/18/2021] [Accepted: 02/09/2021] [Indexed: 12/17/2022]
Abstract
Exposure to the external environment may lead to instability and dysfunction of the skin, resulting in refractory wound, skin aging, pigmented dermatosis, hair loss, some immune-mediated dermatoses, and connective tissue diseases. Nowadays, many skin treatments have not achieved a commendable balance between medical recovery and cosmetic needs. Exosomes are cell-derived nanoscale vesicles carrying various biomolecules, including proteins, nucleic acids, and lipids, with the capability to communicate with adjacent or distant cells. Recent studies have demonstrated that endogenic multiple kinds of exosomes are crucial orchestrators in shaping physiological and pathological development of the skin. Besides, exogenous exosomes, such as stem cell exosomes, can serve as novel treatment options to repair, regenerate, and rejuvenate skin tissue. Herein, we review new insights into the role of endogenic and exogenous exosomes in the skin microenvironment and recent advances in applications of exosomes related to dermatology and cutaneous medical aesthetics. The deep understanding of the mechanisms by which exosomes perform biological functions in skin is of great potential to establish attractive therapeutic methods for the skin.
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Affiliation(s)
- Mingchen Xiong
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, China
| | - Qi Zhang
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, China.
| | - Weijie Hu
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, China.
| | - Chongru Zhao
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, China
| | - Wenchang Lv
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, China
| | - Yi Yi
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, China
| | - Yichen Wang
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, China
| | - Hongbo Tang
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, China.
| | - Min Wu
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, China.
| | - Yiping Wu
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, Hubei, China.
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Stock NM, Sharratt ND, Treneman-Evans G, Montgomery K, Denman R, Harcourt D, At The Centre For Appearance Research TVTCTFRT. 'My face in someone else's hands': a qualitative study of medical tattooing in women with hair loss. PSYCHOL HEALTH MED 2021; 27:1431-1442. [PMID: 33559487 DOI: 10.1080/13548506.2021.1883688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The psychological and social impact of hair loss and its ongoing treatment can be considerable. Medical treatments are not always successful, and alternative treatments, such as medical tattooing, are growing in popularity. The aims of this study were to explore adults' motivations, experiences, and self-perceived outcomes in relation to medical tattooing. Individual telephone interviews were conducted with 22 women from the United Kingdom aged 26-67 years who had undergone medical tattooing in the past 5 years related to hair loss. Interviews were transcribed and inductive thematic analysis was performed. Appearance concerns, loss of self-confidence/identity, and the practicalities of daily upkeep were cited as reasons for seeking a semi-permanent solution. Trust in the practitioner and the ongoing costs of tattoo maintenance were important considerations in participants' decision-making process and their overall satisfaction with treatment outcomes. Participants felt the emotional impact of hair loss and the subsequent need for appearance-restoring treatment remains unrecognised. This study provides insight into participants' perceptions of an under-researched and unregulated but widely accessible treatment. Implications for the decision-making process are discussed, and suggestions for health professionals are offered.
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Affiliation(s)
- Nicola Marie Stock
- Department of Health and Social Sciences, The Centre for Appearance Research, University of the West of England, Bristol, UK
| | - Nicholas David Sharratt
- Department of Health and Social Sciences, The Centre for Appearance Research, University of the West of England, Bristol, UK
| | - Georgia Treneman-Evans
- Department of Health and Social Sciences, The Centre for Appearance Research, University of the West of England, Bristol, UK
| | | | - Rae Denman
- Rae Denman Medical Tattooing, London, UK
| | - Diana Harcourt
- Department of Health and Social Sciences, The Centre for Appearance Research, University of the West of England, Bristol, UK
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Maghfour J, Olson J, Conic RRZ, Mesinkovska NA. The Association between Alopecia and Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis. Dermatology 2021; 237:658-672. [PMID: 33440387 DOI: 10.1159/000512747] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/01/2020] [Indexed: 11/19/2022] Open
Abstract
IMPORTANCE The link between autoimmune gut disorders and different types of hair loss conditions has been recently investigated with an increased interest. With acknowledgement of the connection between immune dysregulation and the gut microbiome, this pathway is now becoming recognized as playing an important role in hair growth. The inflammatory cascade that results from the disruption of gut integrity such as seen in inflammatory bowel diseases (IBD) has been associated with certain types of alopecia. OBJECTIVE The aim of this work was to evaluate the association between alopecia and IBD. EVIDENCE REVIEW A primary literature search was conducted using the PubMed, Embase, and Web of Science databases to identify articles on co-occurring alopecia and IBD from 1967 to 2020. A total of 79 studies were included in the review. A one-way proportional meta-analysis was performed on 19 of the studies to generate the pooled prevalence of alopecia and IBD. FINDING The pooled prevalence of non-scarring alopecia among IBD patients was 1.12% (k = 7, I2 = 98.6%, 95% CI 3.1-39.9); the prevalence of IBD among scarring and non-scarring alopecia was 1.99% (k = 12; I2 = 99%, 95% CI 6.2-34). The prevalence of non-scarring alopecia areata (AA) among IBD was compared to the prevalence of AA in the general population (0.63 vs. 0.1%; p < 0.0001). Similarly, the prevalence of IBD among the scarring and non-scarring alopecia groups was compared to the prevalence of IBD in the general population (1.99 vs. 0.396%; p = 0.0004). CONCLUSION IBD and alopecia, particularly AA, appear to be strongly associated. Dermatology patients with alopecia may benefit from screening for IBD.
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Affiliation(s)
- Jalal Maghfour
- Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA,
| | - Justin Olson
- Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Rosalynn R Z Conic
- Department of Family Medicine and Public Health, University of California San Diego, San Diego, California, USA
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Urban K, Chu S, Giesey RL, Mehrmal S, Uppal P, Delost ME, Delost GR. Burden of skin disease and associated socioeconomic status in Asia: A cross-sectional analysis from the Global Burden of Disease Study 1990-2017. JAAD Int 2020; 2:40-50. [PMID: 34409353 PMCID: PMC8362322 DOI: 10.1016/j.jdin.2020.10.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2020] [Indexed: 01/22/2023] Open
Abstract
Introduction Skin diseases have a significant global impact on quality of life, mental health, and loss of income. The burden of dermatologic conditions and its relationship with socioeconomic status in Asia is currently not well understood. Methods We selected Global Burden of Disease Study datasets to analyze disability-adjusted life years (DALYs) in 50 Asian countries, including Central Asia, northern Asia, eastern Asia, western Asia, southeastern Asia, and southern Asia, between 1990 and 2017. We compared DALYs to the socioeconomic status using the sociodemographic index and gross domestic product per capita of a country. Statistical analysis was performed using Pearson's correlation. Results Some countries had higher or lower than expected age-standardized DALY rates of skin diseases. Asian countries, especially high-income countries, had a high burden of inflammatory dermatoses, including acne, alopecia areata, atopic dermatitis, contact dermatitis, decubitus ulcers, psoriasis, pruritus, and seborrheic dermatitis. The burden of infectious dermatoses was greater in low-income Asian countries. The burden of skin cancer in Asia was relatively low. Conclusion There is a high burden of skin disease, especially inflammatory conditions, in Asian countries, but the burden of individual dermatoses in Asia varies by country and socioeconomic status. DALYs can potentially serve as a purposeful measure for directing resources to improve the burden of skin disease in Asia.
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Affiliation(s)
- Katelyn Urban
- Lake Erie College of Osteopathic Medicine, Greensburg, Pennsylvania
| | - Sherman Chu
- Western University of Health Sciences, College of Osteopathic Medicine of the Pacific, Northwest, Lebanon, Oregon
| | - Rachel L Giesey
- Ohio University Heritage College of Osteopathic Medicine, Athens, Ohio
| | - Sino Mehrmal
- Department of Internal Medicine, Alameda Health System - Highland Hospital, Oakland, California
| | - Prabhdeep Uppal
- Department of Emergency Medicine, Christiana Care Health System, Newark, Delaware.,Department of Family Medicine, Christiana Care Health System, Newark, Delaware
| | - Maria E Delost
- Department of Health Professions, Youngstown State University, Youngstown, Ohio
| | - Gregory R Delost
- Apex Dermatology and Skin Surgery Center, Mayfield Heights, Mayfield Heights, Ohio.,Lake Erie College of Osteopathic Medicine, Eerie, Pennsylvania
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Dubin DP, Lin MJ, Leight HM, Farberg AS, Torbeck RL, Burton WB, Khorasani H. The effect of platelet-rich plasma on female androgenetic alopecia: A randomized controlled trial. J Am Acad Dermatol 2020; 83:1294-1297. [DOI: 10.1016/j.jaad.2020.06.1021] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 05/16/2020] [Accepted: 06/27/2020] [Indexed: 10/23/2022]
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Anzai A, Wang EHC, Lee EY, Aoki V, Christiano AM. Pathomechanisms of immune-mediated alopecia. Int Immunol 2020; 31:439-447. [PMID: 31050755 DOI: 10.1093/intimm/dxz039] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 04/24/2019] [Indexed: 12/13/2022] Open
Abstract
The hair follicle (HF) is a complex mini-organ that constantly undergoes dynamic cycles of growth and regression throughout life. While proper progression of the hair cycle requires homeostatic interplay between the HF and its immune microenvironment, specific parts of the HF, such as the bulge throughout the hair cycle and the bulb in the anagen phase, maintain relative immune privilege (IP). When this IP collapses, inflammatory infiltrates that aggregate around the bulge and bulb launch an immune attack on the HF, resulting in hair loss or alopecia. Alopecia areata (AA) and primary cicatricial alopecia (PCA) are two common forms of immune-mediated alopecias, and recent advancements in understanding their disease mechanisms have accelerated the discovery of novel treatments for immune-mediated alopecias, specifically AA. In this review, we highlight the pathomechanisms involved in both AA and CA in hopes that a deeper understanding of their underlying disease pathogenesis will encourage the development of more effective treatments that can target distinct disease pathways with greater specificity while minimizing adverse effects.
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Affiliation(s)
- Alessandra Anzai
- Department of Dermatology, Clinical Hospital of the University of Sao Paulo, Sao Paulo-SP, Brazil
| | - Eddy Hsi Chun Wang
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA
| | - Eunice Y Lee
- Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Valeria Aoki
- Department of Dermatology, Clinical Hospital of the University of Sao Paulo, Sao Paulo-SP, Brazil
| | - Angela M Christiano
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA
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Anzai A, Pereira AF, Malaquias KR, Guerra LO, Mercuri M. Efficacy and safety of a new formulation kit (shampoo + lotion) containing anti‐inflammatory and antioxidant agents to treat hair loss. Dermatol Ther 2020; 33:e13293. [DOI: 10.1111/dth.13293] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/12/2020] [Accepted: 03/02/2020] [Indexed: 11/26/2022]
Affiliation(s)
| | | | | | - Lucas O. Guerra
- Allergisa—Pesquisa Dermato‐cosmética Ltda Campinas SP Brazil
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Kochar P, Nayak K, Thakkar S, Polaka S, Khunt D, Misra M. Exploring the potential of minoxidil tretinoin liposomal based hydrogel for topical delivery in the treatment of androgenic alopecia. Cutan Ocul Toxicol 2020; 39:43-53. [DOI: 10.1080/15569527.2019.1694032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Pratiksha Kochar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
| | - Kritika Nayak
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
| | - Shreya Thakkar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
| | - Suryanarayan Polaka
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
| | - Dignesh Khunt
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
| | - Manju Misra
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
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40
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Castro AR, Logarinho E. Tissue engineering strategies for human hair follicle regeneration: How far from a hairy goal? Stem Cells Transl Med 2019; 9:342-350. [PMID: 31876379 PMCID: PMC7031632 DOI: 10.1002/sctm.19-0301] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 11/25/2019] [Indexed: 12/12/2022] Open
Abstract
The demand for an efficient therapy for alopecia disease has fueled the hair research field in recent decades. However, despite significant improvements in the knowledge of key processes of hair follicle biology such as genesis and cycling, translation into hair follicle replacement therapies has not occurred. Great expectation has been recently put on hair follicle bioengineering, which is based on the development of fully functional hair follicles with cycling activity from an expanded population of hair‐inductive (trichogenic) cells. Most bioengineering approaches focus on in vitro reconstruction of folliculogenesis by manipulating key regulatory molecular/physical features of hair follicle growth/cycling in vivo. Despite their great potential, no cell‐based product is clinically available for hair regeneration therapy to date. This is mainly due to demanding issues that still hinder the functionality of cultured human hair cells. The present review comprehensively compares emergent strategies using different cell sources and tissue engineering approaches, aiming to successfully achieve a clinical cure for hair loss. The hurdles of these strategies are discussed, as well as the future directions to overcome the obstacles and fulfill the promise of a “hairy” feat.
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Affiliation(s)
- Ana Rita Castro
- Aging and Aneuploidy Group, IBMC, Instituto de Biologia Molecular e Celular, Porto, Portugal.,i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Programa Doutoral em Engenharia Biomédica, Faculdade de Engenharia, Universidade do Porto, Porto, Portugal.,Saúde Viável - Clínica de Microtransplante Capilar, Porto, Portugal
| | - Elsa Logarinho
- Aging and Aneuploidy Group, IBMC, Instituto de Biologia Molecular e Celular, Porto, Portugal.,i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Saúde Viável - Clínica de Microtransplante Capilar, Porto, Portugal
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Yao G, Jiang D, Li J, Kang L, Chen S, Long Y, Wang Y, Huang P, Lin Y, Cai W, Wang X. Self-Activated Electrical Stimulation for Effective Hair Regeneration via a Wearable Omnidirectional Pulse Generator. ACS NANO 2019; 13:12345-12356. [PMID: 31503449 PMCID: PMC6881522 DOI: 10.1021/acsnano.9b03912] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Hair loss, a common and distressing symptom, has been plaguing humans. Various pharmacological and nonpharmacological treatments have been widely studied to achieve the desired effect for hair regeneration. As a nonpharmacological physical approach, physiologically appropriate alternating electric field plays a key role in the field of regenerative tissue engineering. Here, a universal motion-activated and wearable electric stimulation device that can effectively promote hair regeneration via random body motions was designed. Significantly facilitated hair regeneration results were obtained from Sprague-Dawley rats and nude mice. Higher hair follicle density and longer hair shaft length were observed on Sprague-Dawley rats when the device was employed compared to conventional pharmacological treatments. The device can also improve the secretion of vascular endothelial growth factor and keratinocyte growth factor and thereby alleviate hair keratin disorder, increase the number of hair follicles, and promote hair regeneration on genetically defective nude mice. This work provides an effective hair regeneration strategy in the context of a nonpharmacological self-powered wearable electronic device.
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Affiliation(s)
- Guang Yao
- Department of Materials Science and Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P.R. China
| | - Dawei Jiang
- Department of Radiology, University of Wisconsin—Madison, Madison, Wisconsin 53705, United States
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Carson International Cancer Center, Laboratory of Evolutionary Theranostics, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China
| | - Jun Li
- Department of Materials Science and Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Lei Kang
- Department of Radiology, University of Wisconsin—Madison, Madison, Wisconsin 53705, United States
| | - Sihong Chen
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P.R. China
| | - Yin Long
- Department of Materials Science and Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P.R. China
| | - Yizhan Wang
- Department of Materials Science and Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Peng Huang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Carson International Cancer Center, Laboratory of Evolutionary Theranostics, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China
| | - Yuan Lin
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P.R. China
| | - Weibo Cai
- Department of Radiology, University of Wisconsin—Madison, Madison, Wisconsin 53705, United States
| | - Xudong Wang
- Department of Materials Science and Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
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