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Du Y, Lu C, Bi L, Wang C, Zhao M, Ding Y, Fan W. Causal effects of genetically determined metabolites on androgenetic alopecia: A two-sample Mendelian randomization analysis. Skin Res Technol 2024; 30:e13732. [PMID: 38747971 PMCID: PMC11095465 DOI: 10.1111/srt.13732] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 04/01/2024] [Indexed: 05/18/2024]
Abstract
BACKGROUND Androgenic alopecia (AGA) is the most common non-scarring alopecia disorder. Given its increasing incidence and onset during adolescence, AGA significantly impacts both the physical and psychological well-being of affected individuals. Emerging evidence suggests a pivotal role of metabolites in AGA. This study aims to elucidate the causal relationship between metabolites and AGA using Mendelian randomization (MR) analysis. METHODS We conducted a two-sample Mendelian randomization (TSMR) analysis based on a genome-wide association study (GWAS) to assess the causality of 452 metabolites on AGA. The main approach employed for inferring causal effects was inverse variance weighted (IVW), which was complemented by MR-Egger regression, weighted median, as well as MR pleiotropy residual sum and outlier (MR-PRESSO) approaches. Additionally, sensitivity analyses were performed to ensure result robustness. Single nucleotide polymorphisms (SNPs) were selected as instrumental variables (IVs) in GWAS dataset comprising 452 metabolites. RESULTS Notably, we identified Scyllo-inositol and Alpha-ketoglutarate as the most potent protective factors against AGA, while Heme* and 2-palmitoylglycerophosphocholine* emerged as significant risk factors for AGA. Furthermore, sensitivity analysis revealed no heterogeneity in these findings. CONCLUSIONS Overall, our research suggests a potential causal link between metabolites and AGA, offering a more comprehensive insight into the pathogenesis of AGA and present additional strategies for prevention and treatment.
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Affiliation(s)
- Yimei Du
- Department of DermatologyThe First Affiliated Hospital with Nanjing Medical UniversityNanjingChina
| | - Changpei Lu
- Department of DermatologyThe First Affiliated Hospital with Nanjing Medical UniversityNanjingChina
| | - Lingbo Bi
- Department of DermatologyThe First Affiliated Hospital with Nanjing Medical UniversityNanjingChina
| | - Chaofan Wang
- Department of DermatologyThe First Affiliated Hospital with Nanjing Medical UniversityNanjingChina
| | - Min Zhao
- Department of DermatologyThe First Affiliated Hospital with Nanjing Medical UniversityNanjingChina
| | - Yunbu Ding
- Department of DermatologyThe First Affiliated Hospital with Nanjing Medical UniversityNanjingChina
| | - Weixin Fan
- Department of DermatologyThe First Affiliated Hospital with Nanjing Medical UniversityNanjingChina
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Wu S, Kou X, Niu Y, Liu Y, Zheng B, Ma J, Liu M, Xue Z. Progress on the mechanism of natural products alleviating androgenetic alopecia. Eur J Med Chem 2024; 264:116022. [PMID: 38086191 DOI: 10.1016/j.ejmech.2023.116022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/19/2023] [Accepted: 11/29/2023] [Indexed: 12/30/2023]
Abstract
Androgenetic alopecia (AGA) has become a widespread problem that leads to considerable impairment of the psyche and daily life. The currently approved medications for the treatment of AGA are associated with significant adverse effects, high costs, and prolonged treatment duration. Therefore, natural products are being considered as possible complementary or alternative treatments. This review aims to enhance comprehension of the mechanisms by which natural products treat AGA. To achieve this, pertinent studies were gathered and subjected to analysis. In addition, the therapeutic mechanisms associated with these natural products were organized and summarized. These include the direct modulation of signaling pathways such as the Wnt/β-catenin pathway, the PI3K/AKT pathway, and the BMP pathway. Additionally, they exert effects on cytokine secretion, anti-inflammatory, and antioxidant capabilities, as well as apoptosis and autophagy. Furthermore, the review briefly discusses the relationship between signaling pathways and autophagy and apoptosis in the context of AGA, systematically presents the mechanisms of action of existing natural products, and analyzes the potential therapeutic targets based on the active components of these products. The aim is to provide a theoretical basis for the development of pharmaceuticals, nutraceuticals, or dietary supplements.
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Affiliation(s)
- Shuqi Wu
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin, 300072, China
| | - Xiaohong Kou
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin, 300072, China
| | - Yujia Niu
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin, 300072, China
| | - Yazhou Liu
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin, 300072, China
| | - Bowen Zheng
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin, 300072, China
| | - Juan Ma
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin, 300072, China
| | - Mengyi Liu
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin, 300072, China
| | - Zhaohui Xue
- School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin, 300072, China.
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Wang C, Bi L, Du Y, Lu C, Zhao M, Lin X, Ding Y, Fan W. The role of telomerase in hair growth and relevant disorders: A review. J Cosmet Dermatol 2023; 22:2925-2929. [PMID: 37667425 DOI: 10.1111/jocd.15992] [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: 05/28/2023] [Revised: 08/15/2023] [Accepted: 08/29/2023] [Indexed: 09/06/2023]
Abstract
BACKGROUND Hair diseases may present with hair loss, hirsutism, hair melanin abnormalities and other manifestations. Hair follicles are known as mini-organs that undergo periodic remodeling, and their constant regeneration in vivo reflects interesting anti-aging functions. Telomerase prevents cellular senescence by maintaining telomere length, but its excessive proliferation in cancer cells may also induce cancer. However, the effects of telomerase in hair growth have rarely been reported. METHODS In this study, we reviewed the role of telomerase in hair growth and the effects of hair disorders through literature search and analysis. RESULTS There is growing evidence that telomerase plays an important role in maintaining hair follicle function and proliferation. Changes in telomerase levels in hair follicles have also been found in a variety of hair disorders. CONCLUSION Telomerase plays a positive role in hair growth and is expected to become a new target for the treatment of alopecia or other hair diseases in the future.
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Affiliation(s)
- Chaofan Wang
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lingbo Bi
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yimei Du
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Changpei Lu
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Min Zhao
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xuewen Lin
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yunbu Ding
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Weixin Fan
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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TERT/BMI1-transgenic human dermal papilla cells enhance murine hair follicle formation in vivo. J Dermatol Sci 2022; 106:78-85. [DOI: 10.1016/j.jdermsci.2022.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 03/22/2022] [Accepted: 03/28/2022] [Indexed: 11/23/2022]
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