Experimental Dermatology最新文献

{"title":"Identification of dietary factors that impact the gut microbiota associated with vitiligo: A Mendelian randomization study and meta-analysis","authors":"Keyi Zhang,&nbsp;Ling Jiang,&nbsp;Chuhan Fu,&nbsp;Jiangfeng Huang,&nbsp;Yaqing Wen,&nbsp;Shu Zhou,&nbsp;Jinhua Huang,&nbsp;Jing Chen,&nbsp;Qinghai Zeng","doi":"10.1111/exd.15176","DOIUrl":"https://doi.org/10.1111/exd.15176","url":null,"abstract":"<p>Previous observational studies have suggested that gut microbiota might be associated with vitiligo. However, owing to the limitations in observational studies of reverse causality and confounders, it remains unclear that whether and how the causal relationships exist. The results suggested that pylum.Bacteroidetes, family.BacteroidalesS24.7, genus.<i>LachnospiraceaeND3007</i>, genus.<i>Marvinbryantia</i> are protective factors for vitiligo. Conversely, family.Lachnospiraceae, order.Burkholderiales, genus.<i>Adlercreutzia</i>, genus.<i>Catenibacterium</i> and genus.<i>Lachnospira</i> are risk factors for vitiligo. In addition, the causative connection between dietary factors and the gut microbiota associated with vitiligo was also investigated. The results revealed that ‘alcohol intake versus 10 years pervious’ results in a reduction in the abundance of genus.<i>Lachnospiraceae ND3007</i> and family.BacteroidalesS24.7, bread intake leads to a reduction of genus.<i>Marvinbryantia</i>, ‘average weekly red wine intake’ is linked to a decrease in the abundance of order.Burkholderiales, tea intake is associated with an augmentation in the abundance of genus.<i>Catenibacterium</i>, salad/raw vegetable intake elevates the abundance of order.Burkholderiales. In summary, this Mendelian randomization study substantiates potential causal effects of gut microbiota on vitiligo. Modulating the gut microbiota through regulating dietary composition may be a novel strategy for preventing vitiligo.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142273221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interleukin-1 family cytokines and soluble receptors in hidradenitis suppurativa","authors":"Flavia Manzo Margiotta,&nbsp;Gaetana Gambino,&nbsp;Federico Pratesi,&nbsp;Alessandra Michelucci,&nbsp;Francesco Pisani,&nbsp;Leonardo Rossi,&nbsp;Valentina Dini,&nbsp;Marco Romanelli,&nbsp;Paola Migliorini","doi":"10.1111/exd.15179","DOIUrl":"https://doi.org/10.1111/exd.15179","url":null,"abstract":"<p>Hidradenitis suppurativa (HS) is a chronic skin disease, characterized by clinical inflammation of the hair follicle with the recurrence of abscesses, nodules, and tunnels. Recently, several studies suggested a role of IL-1 family (IL-1F) cytokines in eliciting and sustaining the disease. The aim of this work is to perform a comprehensive analysis of IL-1F cytokines, soluble inhibitors and receptors in a cohort of HS patients not treated with biological agents. Sixteen patients affected by HS and 16 healthy controls were recruited; clinical data were collected and disease severity evaluated by means of the International HS Severity Score System (IHS4). Serum levels of IL-1F cytokines, inhibitors and receptors were measured using a Multiplex Assays. IL-18 and free IL-18 levels were significantly higher in patients vs controls. Among soluble inhibitors, IL-1Ra, IL-1R2 and ST2/IL-1R4 were significantly increased. IL-18, free IL-18 and IL-33 levels are strongly correlated with IHS4. Also the inhibitors IL-1Ra and IL-18BP show a correlation with IHS4. The data obtained in this study confirm the involvement of IL-1F cytokines in mediating the disease and determining its severity and suggest a possible role for IL-18 as novel serum biomarker of active disease.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/exd.15179","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Possibility of maintaining remission with topical therapy alone after withdrawal of dupilumab in Japanese patients with atopic dermatitis and their characteristics in the real world","authors":"Ayu Watanabe,&nbsp;Masahiro Kamata,&nbsp;Yoshiki Okada,&nbsp;Shoya Suzuki,&nbsp;Makoto Ito,&nbsp;Hideaki Uchida,&nbsp;Chika Chijiwa,&nbsp;Shota Egawa,&nbsp;Azusa Hiura,&nbsp;Saki Fukaya,&nbsp;Kotaro Hayashi,&nbsp;Atsuko Fukuyasu,&nbsp;Takamitsu Tanaka,&nbsp;Takeko Ishikawa,&nbsp;Yayoi Tada","doi":"10.1111/exd.15175","DOIUrl":"https://doi.org/10.1111/exd.15175","url":null,"abstract":"<p>Psossibility and appropriate timing of discontinuation of dupilumab for atopic dermatitis (AD) remain unclear. We explored the possibility of patients, who could maintain remission with topical therapy alone after withdrawing dupilumab in the real world. Furthermore, we identified their characteristics. All adult AD patients who initiated dupilumab from June 2018 to July 2022 and were treated with dupilumab for more than 3 months at our hospital were included in this study. The observation period was from June 2018 to July 2023. In 138 patients, 58 (42.0%) discontinued dupilumab at least once. Among them, 18 (13.0%) discontinued dupilumab but reinitiated dupilumab later due to exacerbation. Only seven patients (5.1%) could maintain remission with topical therapy alone after discontinuation of dupilumab, with characteristics of lower POEM, VAS of pruritus, serum levels of TARC and LDH, and neutrophil counts at baseline, and those of longer duration of dupilumab until its discontinuation (24.0 ± 13.3 vs. 12.8 ± 7.3 months) and lower EASI and affected BSA at the discontinuation of dupilumab. In 118 patients treated with dupilumab for at least 1 year, 38 patients (32.2%) discontinued at least once. Only four patients (3.4%) could maintain remission with topical therapy alone after discontinuation of dupilumab, with characteristics of lower POEM at baseline and lower EASI at the discontinuation of dupilumab. In conclusion, maintaining remission after withdrawing dupilumab is challenging. Discontinuation of dupilumab may be considered in patients with low baseline POEM, after more than 2 years of dupilumab treatment, with a substantial decrease in EASI.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Psoriasiform drug eruption: A case series with a review of the literature","authors":"Miho Mori,&nbsp;Hiroshi Kawakami,&nbsp;Rie Tobita,&nbsp;Takashi Arai,&nbsp;Atsuko Satsuma,&nbsp;Ryoji Tsuboi,&nbsp;Yukari Okubo","doi":"10.1111/exd.15174","DOIUrl":"https://doi.org/10.1111/exd.15174","url":null,"abstract":"<p>The present case series examined five instances of psoriasiform drug eruption diagnosed between 2014 and 2022 at the study site and 23 cases of drug eruption manifesting psoriasiform lesions which had been reported between 1986 and 2022. The causative drug, distribution of the skin eruptions, clinical latency to eruption, treatment course, and histopathological findings were investigated. The most common causative agents were calcium channel blockers (CCB) (64.5%). Of the 28 cases of psoriasiform drug eruption for which details of the eruption sites were reported, 46.4% occurred on the face, which was slightly higher than the usual distribution of psoriasis. CCB were responsible for 80.0% of the cases of facial skin rash. The mean time from the administration of the suspected drug to eruption onset was 25.0 months (range: 0.5–120 months; median: 13.0 months). In all the cases, the skin rash improved after the causative drug was discontinued. CCB were the most common causative agent, and the eruptions more commonly occurred on the face than in normal psoriasis, suggesting that it is especially important to confirm whether there is a history of CCB administration in psoriasis patients with extensive, facial skin eruptions.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/exd.15174","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of serum cytokines and chemokines levels and clinical significance in patients with pemphigus vulgaris—A retrospective study","authors":"Shuqiong You,&nbsp;Jianting Ouyang,&nbsp;Qian Wu,&nbsp;Yaozhong Zhang,&nbsp;Jian Gao,&nbsp;Xiaojia Luo,&nbsp;Yuan Wang,&nbsp;Yongzhuo Wu,&nbsp;Fuqiong Jiang","doi":"10.1111/exd.15173","DOIUrl":"10.1111/exd.15173","url":null,"abstract":"<p>In this study, we aimed to examine the relationship between the serum cytokine levels of patients with pemphigus vulgaris (PV) and the Pemphigus Disease Area Index (PDAI), along with the presence of anti-desmoglein (Dsg) 1 antibody, anti-Dsg3 antibody and co-infection among patients with pemphigus vulgaris. This retrospective study included 62 PV patients and 59 healthy individuals who attended the Second Affiliated Hospital of Kunming Medical University from November 2014 to November 2022. The serum concentrations of cytokines and chemokines were assessed using the Luminex 200 System (a high-throughput cytokine detection method). Additionally, anti-Dsg1 and anti-Dsg3 antibodies were determined through enzyme-linked immunosorbent assay, while disease severity was evaluated using the PDAI scoring system. The PV group exhibited elevated levels of Th1 cytokines (such as interleukin (IL)-1RA, IL-1β, IL-2, IL-12p70, GM-CSF, TNF-α, IL-18, IFN-γ), Th2 cytokines (IL-5, IL-10, IL-13) and Th17/Th22-related cytokines (IL-17A, IL-22) compared to the healthy control group (<i>p</i> &lt; 0.05). Conversely, the levels of chemokines (macrophage inflammatory protein-1 alpha (MIP-1α), stromal cell-derived factor-1 alpha (SDF-1α), interferon-inducible protein-10 (IP-10), Regulated on Activation in Normal T-Cell Expressed And Secreted (RANTES), growth-regulated on-gene-alpha (GRO-α), MIP-1β) and Th2 (IL-31) were lower in the PV group compared to the healthy control group (<i>p</i> &lt; 0.05). No significant differences were observed in other cytokines and chemokines (<i>p</i> &gt; 0.05). Additionally, IL-7, IFN-γ, IL-18 and GRO-α showed positive correlations with PDAI, IL-6 correlated positively with anti-Dsg3 antibody levels, and IL-12p70, IL-18, and IFN-γ correlated positively with anti-Dsg1 antibody levels. Furthermore, IL-15 exhibited a positive association with skin infections. PV patients have elevated levels of various cytokines and chemokines, and there are different degrees of elevation in cytokines and chemokines associated with the activation of various T cell subsets. PDAI and the Dsg1 antibody levels are mainly related to the Th1-related cytokines.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predictive value of disease activity signs in vitiligo: An observational study","authors":"Liesbeth Delbaere,&nbsp;Jolien Duponselle,&nbsp;Sandrine Herbelet,&nbsp;Reinhart Speeckaert,&nbsp;Nanja van Geel","doi":"10.1111/exd.15167","DOIUrl":"10.1111/exd.15167","url":null,"abstract":"<p>The progression of vitiligo is unpredictable, emphasizing the need to identify periods of activity early for tailored treatment. Confetti-like depigmentation, hypochromic areas/borders and Koebner's phenomenon are clinical visible signs associated with disease activity in vitiligo. However, their true clinical significance requires further investigation using standardized scoring systems. In the present study, the Vitiligo Signs of Activity Score (VSAS) and the Vitiligo Disease Activity Score (VDAS) were applied to assess disease activity signs and disease progression over time, respectively. Individuals with at least one disease activity sign had a 76.9% likelihood of having active vitiligo. The simultaneous presence of multiple signs or their appearance across body locations increased the likelihood to 94% and 87.1%, respectively. Patients with no disease activity signs had a 60.3% likelihood of having stable disease. This research provides an important nuance about the disease activity signs in vitiligo, which may help guide disease management. The risk of active disease increases when at least two types of vitiligo activity signs are present, or when they are present on different body locations. However, the absence of vitiligo activity signs does not rule out active vitiligo.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Causal effects of lipid-lowering drugs on inflammatory skin diseases: Evidence from drug target Mendelian randomisation","authors":"Chenyang Zang,&nbsp;Jiaxin Li,&nbsp;Ying Zhang,&nbsp;Wenyu Deng,&nbsp;Manyun Mao,&nbsp;Wu Zhu,&nbsp;Wangqing Chen","doi":"10.1111/exd.15157","DOIUrl":"10.1111/exd.15157","url":null,"abstract":"<p>Clinical research has revealed that inflammatory skin diseases are associated with dyslipidaemia. Modulating lipids is also a rising potential treatment option. However, there is heterogeneity in the existing evidence and a lack of large-scale clinical trials. Observational research is prone to bias, making it difficult to determine causality. This study aimed to evaluate the causal association between lipid-lowering drugs and inflammatory skin diseases. A drug target Mendelian randomisation (MR) analysis was conducted. Genetic targets of lipid-lowering drugs, including proprotein convertase subtilis kexin 9 (PCSK9) and 3-hydroxy-3-methylglutaryl-assisted enzyme A reductase (HMGCR) inhibitor, were screened. Common inflammatory skin diseases, including psoriasis, allergic urticaria, rosacea, atopic dermatitis, systemic sclerosis and seborrhoeic dermatitis, were considered as outcomes. Gene-predicted inhibition of PCSK9 was causally associated with a decreased risk of psoriasis (OR_IVW [95%CI] = 0.600 [0.474–0.761], <i>p</i> = 2.48 × 10⁻⁵) and atopic dermatitis (OR_IVW [95%CI] = 0.781 [0.633–0.964], <i>p</i> = 2.17 × 10⁻²). Gene-predicted inhibition of HMGCR decreased the risk of seborrhoeic dermatitis (OR_IVW [95%CI] = 0.407 [0.168–0.984], <i>p</i> = 4.61 × 10⁻²) but increased the risk of allergic urticaria (OR_IVW [95%CI] = 3.421 [1.374–8.520], <i>p</i> = 8.24 × 10⁻³) and rosacea (OR_IVW [95%CI] = 3.132 [1.260–7.786], <i>p</i> = 1.40 × 10⁻²). Among all causal associations, only PCSK9 inhibition demonstrated a robust causal effect on psoriasis after a more rigorous Bonferroni test (<i>p</i> &lt; 4.17 × 10⁻³, which is 0.05/12). Modulating lipids via PCSK9 inhibition may offer potential therapeutic targets for psoriasis and atopic dermatitis. Given the potential cutaneous side effects associated with HMGCR inhibitors, PCSK9 inhibitors could be considered viable alternatives in lipid-lowering medication.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Granzyme B inhibition reduces autoantibody-induced dermal–epidermal separation in an ex vivo model of epidermolysis bullosa acquisita","authors":"Shirin Emtenani,&nbsp;Hélène Lebhar,&nbsp;Christopher P. Marquis,&nbsp;Ralf J. Ludwig,&nbsp;Enno Schmidt","doi":"10.1111/exd.15172","DOIUrl":"10.1111/exd.15172","url":null,"abstract":"<p>The pemphigoid disease epidermolysis bullosa acquisita (EBA) is an autoimmune blistering skin disease characterized by autoantibodies against type VII collagen (COL7), immune cell infiltrates at the dermal–epidermal junction and subepidermal blistering. Proteases, particularly granzyme B (GzmB), have been established as therapeutic targets for the treatment of EBA and other pemphigoid diseases. We investigated the impact of the novel GzmB inhibitor SNT-6935 on anti-COL7 IgG-induced subepidermal blistering in a well-established EBA ex vivo model. Our findings demonstrate that pharmacological targeting of GzmB with its selective inhibitor SNT-6935 significantly reduced autoantibody-induced dermal–epidermal separation in human skin cryosections. Interestingly, treatment of skin cryosections with recombinant human GzmB alone did not cause dermal–epidermal separation, suggesting that additional mechanisms alongside GzmB are required for tissue damage in EBA. In conclusion, our study highlights the significant contribution of GzmB to the pathogenesis of EBA and supports the notion of GzmB as a therapeutic target in EBA and other pemphigoid diseases.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/exd.15172","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142105921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Sézary cell marker expression and cell death behaviour upon in vitro treatment by flow cytometry in Sézary syndrome patients","authors":"S. Melchers,&nbsp;M. Roemer,&nbsp;J. D. Albrecht,&nbsp;C. Assaf,&nbsp;C. von Gugelberg,&nbsp;E. Guenova,&nbsp;C.-D. Klemke,&nbsp;R. K. C. Moritz,&nbsp;M. Schlaak,&nbsp;R. Stadler,&nbsp;U. Wehkamp,&nbsp;M. Wobser,&nbsp;T. Albrecht,&nbsp;S. Goerdt,&nbsp;S. Schneider,&nbsp;J. P. Nicolay","doi":"10.1111/exd.15171","DOIUrl":"10.1111/exd.15171","url":null,"abstract":"<p>The diagnosis of Sézary syndrome (SS) relies on the identification of blood Sézary cells (SC) by different markers via flow cytometry. Treatment of SS is challenging since its pathogenesis is characterized by cell death resistance rather than hyperproliferation. In this study, we establish an integrated approach that considers both the expression of SC markers and sensitivity to cell death both spontaneously and upon in vitro treatment. Peripheral blood mononuclear cells were isolated from 20 SS patients and analysed for the SC markers CD7 and CD26 loss as well as CD158k and PD1 gain. The cells were then treated with different established and experimental therapies in vitro and cell death was measured. Spontaneous and therapeutically induced cell death were measured and correlated to cellular marker profiles. In the marker-positive cells, spontaneous cell death sensitivity was reduced. Different treatments in vitro managed to specifically induce cell death in the putative CTCL cell populations. Interestingly, a repeated analysis after 3 months of treatment revealed the CTCL cell death sensitivity to be restored by therapy. We propose this novel integrated approach comprising the evaluation of SC marker expression and analysis of cell death sensitivity upon treatment that can also enable a better therapy stratification.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/exd.15171","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142105920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploration of potential biomarkers for prurigo nodularis based on plasma-metabolome analysis","authors":"Duoqin Wang,&nbsp;Lisi Peng,&nbsp;Yiqi Zhu,&nbsp;Shuwen Xu,&nbsp;Zijing Xiao,&nbsp;Yanyun Shen,&nbsp;Taiyu Jin,&nbsp;Yixin Shao,&nbsp;Hui Tang","doi":"10.1111/exd.15170","DOIUrl":"https://doi.org/10.1111/exd.15170","url":null,"abstract":"<p>Prurigo nodularis (PN) is a chronic and debilitating skin disease with severe itching that negatively impacts patients' quality of life and mental state. However, the treatment options for PN remain limited. Global metabolomics analysis can offer effective information on energy metabolism, pathogenesis and potential diagnostic biomarkers. No study on metabolomic analysis of PN has been reported. To further understand the mechanisms of PN and analyse the plasma metabolite profiles in patients with PN. Targeted-metabolome analysis of 306 metabolites in plasma from 18 patients with PN and 19 healthy controls was performed using Liquid Chromatography-tandem Mass Spectrometer analysis. We identified 31 differential metabolites. Most acylcarnitines, long-chain fatty acids, alpha-aminobutyric acid, hydroxybutyric acid and lactic acid among these metabolites were up-regulated in patients with PN; in contrast, glucaric acid, suberic acid, bile acid derivatives and most amino acids were down-regulated. Positive correlations exist between glucaric acid and itching severity and acylcarnitines and insomnia. Suberic acid and the Investigator's Global Assessment (IGA) scores correlate negatively. Metabolite variation reflects the dysregulation of energy metabolism and chronic systematic inflammation in PN. Several metabolites, such as glucaric acid, suberic acid and acylcarnitines, merit further study as potential biomarkers of disease severity in PN.</p>","PeriodicalId":12243,"journal":{"name":"Experimental Dermatology","volume":"33 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142100246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}