JAMA dermatologyPub Date : 2025-01-01DOI: 10.1001/jamadermatol.2024.4253
Lydia Lutz, Rachel McFadden, Lin Xu, Ranvir Bhatia, M Holliday Davis, Natasa Rohacs, Jenny Wei, Jeanmarie Perrone, Margaret Lowenstein, Ashish P Thakrar
{"title":"Wound Characteristics Among Patients Exposed to Xylazine.","authors":"Lydia Lutz, Rachel McFadden, Lin Xu, Ranvir Bhatia, M Holliday Davis, Natasa Rohacs, Jenny Wei, Jeanmarie Perrone, Margaret Lowenstein, Ashish P Thakrar","doi":"10.1001/jamadermatol.2024.4253","DOIUrl":"10.1001/jamadermatol.2024.4253","url":null,"abstract":"<p><strong>Importance: </strong>The alpha-2 agonist xylazine is increasingly detected as an adulterant in illicitly manufactured fentanyl. There is concern that xylazine may be responsible for an emerging pattern of necrotizing wounds among people who use drugs, but the clinical features of wounds associated with xylazine remain poorly characterized.</p><p><strong>Objective: </strong>To systematically characterize the location, wound bed surface, and chronicity of wounds among persons with confirmed xylazine exposure.</p><p><strong>Design, setting, and participants: </strong>This case series at 3 academic medical hospitals in Philadelphia, Pennsylvania, included patients with emergency department or inpatient encounters from April 2022 to February 2023 who had a wound-related chief complaint and xylazine detected with urine gas chromatography-mass spectroscopy.</p><p><strong>Exposure: </strong>Xylazine.</p><p><strong>Main outcomes and measures: </strong>The location, size, wound bed, and chronicity of wounds associated with xylazine using electronic medical record abstraction and Fisher exact tests.</p><p><strong>Results: </strong>Of 59 wounds from 29 unique patients with confirmed xylazine exposure (mean [SD] age, 39.4 [8.8] years; 15 [52%] male; all using fentanyl, and 23 [79%] routinely injecting opioids), 53 wounds (90%) were located on extremities, and 41 (69%) involved extensor surfaces. Five wounds (9%) involved exposed deep structures such as bone or tendon. Of 57 wounds with photographs, 34 (60%) had wound beds of predominantly devitalized tissue (eschar or slough). Based on patient report, 28 wounds (48%) were acute (<1 month old), 12 (20%) were subacute (present for 1-3 months), and 17 (29%) were chronic (developed ≥3 months prior). Subacute and chronic wounds were more often medium or large in size (odds ratio, 48.5; 95% CI, 8.2-1274.8; P < .001) and more frequently had devitalized wound beds (odds ratio, 9.5; 95% CI, 2.9-37.0; P < .001).</p><p><strong>Conclusions and relevance: </strong>In this case series of hospitalized patients with confirmed xylazine exposure, wounds were commonly located on extensor surfaces of the extremities, frequently had devitalized tissue or exposed deep structures, and were more likely to have larger and necrotic wound beds the longer they had persisted. This systematic characterization of xylazine-associated wounds may inform identification, management, and research to address this emerging public health threat.</p>","PeriodicalId":14734,"journal":{"name":"JAMA dermatology","volume":" ","pages":"75-80"},"PeriodicalIF":11.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561723/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142620683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JAMA dermatologyPub Date : 2025-01-01DOI: 10.1001/jamadermatol.2024.4593
Yagiz Matthew Akiska, Paradi Mirmirani, Ingrid Roseborough, Erin Mathes, Tina Bhutani, Andrew Ambrosy, Crystal Aguh, Wilma Bergfeld, Valerie D Callender, Leslie Castelo-Soccio, George Cotsarelis, Brittany Gareth Craiglow, Nisha S Desai, Isabella Doche, Bruna Duque-Estrada, Dirk M Elston, Carolyn Goh, Lynne J Goldberg, Ramon Grimalt, Ali Jabbari, Victoria Jolliffe, Brett A King, Charlotte LaSenna, Yolanda Lenzy, Jenna C Lester, Nino Lortkipanidze, Kristen I Lo Sicco, Amy McMichael, Nekma Meah, Natasha Mesinkovska, Mariya Miteva, Arash Mostaghimi, Yuliya Ovcharenko, Melissa Piliang, Bianca Maria Piraccini, Adriana Rakowska, Kimberly S Salkey, Adriana Schmidt, Jerry Shapiro, Cathryn Sibbald, Rodney Sinclair, Poonkiat Suchonwanit, Susan Taylor, Antonella Tosti, Sergio Vañó-Galván, Dmitri Robert Wall, Jennifer M Fu
{"title":"Low-Dose Oral Minoxidil Initiation for Patients With Hair Loss: An International Modified Delphi Consensus Statement.","authors":"Yagiz Matthew Akiska, Paradi Mirmirani, Ingrid Roseborough, Erin Mathes, Tina Bhutani, Andrew Ambrosy, Crystal Aguh, Wilma Bergfeld, Valerie D Callender, Leslie Castelo-Soccio, George Cotsarelis, Brittany Gareth Craiglow, Nisha S Desai, Isabella Doche, Bruna Duque-Estrada, Dirk M Elston, Carolyn Goh, Lynne J Goldberg, Ramon Grimalt, Ali Jabbari, Victoria Jolliffe, Brett A King, Charlotte LaSenna, Yolanda Lenzy, Jenna C Lester, Nino Lortkipanidze, Kristen I Lo Sicco, Amy McMichael, Nekma Meah, Natasha Mesinkovska, Mariya Miteva, Arash Mostaghimi, Yuliya Ovcharenko, Melissa Piliang, Bianca Maria Piraccini, Adriana Rakowska, Kimberly S Salkey, Adriana Schmidt, Jerry Shapiro, Cathryn Sibbald, Rodney Sinclair, Poonkiat Suchonwanit, Susan Taylor, Antonella Tosti, Sergio Vañó-Galván, Dmitri Robert Wall, Jennifer M Fu","doi":"10.1001/jamadermatol.2024.4593","DOIUrl":"10.1001/jamadermatol.2024.4593","url":null,"abstract":"<p><strong>Importance: </strong>The results of small studies suggest that off-label use of low-dose oral minoxidil (LDOM) may be safe and effective for patients with hair loss, but larger trials and standardized guidelines are lacking.</p><p><strong>Objective: </strong>To create an expert consensus statement for LDOM prescribing for patients with hair loss.</p><p><strong>Evidence review: </strong>The current literature on the pharmacological properties, adverse effect profile, and use of LDOM for patients with hair loss was reviewed. Topics of interest were identified, and a modified Delphi consensus process was created. A total of 43 hair loss specialist dermatologists from 12 countries participated in a modified Delphi process. Consensus was reached if at least 70% agreed or strongly agreed on a 5-point Likert scale.</p><p><strong>Findings: </strong>Over 4 survey rounds, 180 items in the first round, 121 items in the second round, 16 items in the third round, and 11 items in the fourth round were considered and revised. A total of 76 items achieved consensus including diagnoses for which LDOM may provide direct or supportive benefit, indications for LDOM compared to topical minoxidil, dosing for adults (18 years and older) and adolescents (aged 12 to 17 years), contraindications, precautions, baseline evaluation, monitoring, adjunctive therapy, and specialty consultation. Pediatric use and dosing items for children younger than 12 years, and LDOM titration protocols fell short of consensus.</p><p><strong>Conclusions and relevance: </strong>This international expert consensus statement regarding the off-label prescribing of LDOM for patients with hair loss can help guide clinical practice until more data emerge. Hair loss experts with experience treating pediatric patients were underrepresented on this expert panel. Future research should investigate best practices for LDOM use in pediatric patients. Other critical topics for further investigation include the comparative efficacy of topical minoxidil vs oral minoxidil, the safety of oral minoxidil for patients with a history of allergic contact dermatitis to topical minoxidil, the long-term safety of LDOM, and the use of other off-label forms of minoxidil, such as compounded formulations of oral minoxidil and sublingual minoxidil. As additional evidence-based data emerge, these recommendations should be updated.</p>","PeriodicalId":14734,"journal":{"name":"JAMA dermatology","volume":" ","pages":"87-95"},"PeriodicalIF":11.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142675854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JAMA dermatologyPub Date : 2025-01-01DOI: 10.1001/jamadermatol.2024.4654
J Alexander Sizemore, Maria Angelica Selim, Matilda W Nicholas
{"title":"Periarticular Cutaneous Nodules and Symmetric Polyarthralgia With an Insidious Onset.","authors":"J Alexander Sizemore, Maria Angelica Selim, Matilda W Nicholas","doi":"10.1001/jamadermatol.2024.4654","DOIUrl":"10.1001/jamadermatol.2024.4654","url":null,"abstract":"","PeriodicalId":14734,"journal":{"name":"JAMA dermatology","volume":" ","pages":"102-103"},"PeriodicalIF":11.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142769004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JAMA dermatologyPub Date : 2025-01-01DOI: 10.1001/jamadermatol.2024.3779
Valdemar Wendelboe Nielsen, Oliver Bundgaard Vad, Nikolaj Holgersen, Christian Paludan-Müller, Laia Meseguer Monfort, Astrid Filt Beyer, Gregor Borut Ernst Jemec, Rune Kjærsgaard Andersen, Alexander Egeberg, Jacob P Thyssen, Jesper Hastrup Svendsen, Nana Aviaaja Lippert Rosenø, Peter Riis Hansen, Simon Francis Thomsen, Morten Salling Olesen
{"title":"Genetic Susceptibility to Hidradenitis Suppurativa and Predisposition to Cardiometabolic Disease.","authors":"Valdemar Wendelboe Nielsen, Oliver Bundgaard Vad, Nikolaj Holgersen, Christian Paludan-Müller, Laia Meseguer Monfort, Astrid Filt Beyer, Gregor Borut Ernst Jemec, Rune Kjærsgaard Andersen, Alexander Egeberg, Jacob P Thyssen, Jesper Hastrup Svendsen, Nana Aviaaja Lippert Rosenø, Peter Riis Hansen, Simon Francis Thomsen, Morten Salling Olesen","doi":"10.1001/jamadermatol.2024.3779","DOIUrl":"10.1001/jamadermatol.2024.3779","url":null,"abstract":"<p><strong>Importance: </strong>Hidradenitis suppurativa (HS) is associated with an increased prevalence of cardiovascular diseases compared with the general population. Any association between polygenic risk for HS, risk of incident cardiometabolic outcomes, and the plasma proteome is unclear.</p><p><strong>Objective: </strong>To investigate the genetic correlation between HS and cardiometabolic disease.</p><p><strong>Design, setting, and participants: </strong>This cohort study used a polygenic risk score (PRS) for HS to examine the risks of coronary artery disease (CAD) and diabetes and identify changes in the plasma proteome in individuals of European ancestry from the UK Biobank. Participants were enrolled from January 1, 2006, to December 31, 2010. End of follow-up was January 1, 2023. Correlations were assessed between HS susceptibility and cardiometabolic traits using linkage disequilibrium score regression. Odds ratios were assessed in logistic regressions. The risk of incident CAD and diabetes was estimated in cause-specific survival models designed as time-to-event analyses.</p><p><strong>Exposure: </strong>The PRS for HS.</p><p><strong>Main outcomes and measures: </strong>Main outcomes were CAD and diabetes diagnosis measured by logistic regressions and incident disease measured by Cox proportional hazards regression models adjusted for sex, age, body mass index, and smoking status.</p><p><strong>Results: </strong>The study included 391 481 individuals (median [IQR] age, 58 [51-64] years; 209 235 [53%] female). Genetic variants for HS correlated significantly with variants associated with CAD, diabetes, and plasma levels of high-density lipoprotein cholesterol, triglycerides, and C-reactive protein. Compared with the low-risk group, a high PRS for HS (≥75th percentile) conferred odds ratios of 1.09 (95% CI, 1.06-1.12; P < .001) for CAD and 1.13 (95% CI, 1.10-1.17; P < .001) for diabetes. Estimates remained consistent when examining only incident CAD and diabetes. The PRS for HS was significantly associated with altered expression of 58 plasma proteins. Integrating this proteomic profile and the PRS for HS in a machine learning model improved prediction of CAD and diabetes compared with a reference model based on sex, age, and body mass index.</p><p><strong>Conclusions and relevance: </strong>These findings suggest that a high genetic risk of HS is associated with increased risk of subsequent CAD and diabetes and altered composition of the plasma proteome. Additional investigation into the identified proteins and their potential roles as drug targets is warranted.</p>","PeriodicalId":14734,"journal":{"name":"JAMA dermatology","volume":" ","pages":"22-30"},"PeriodicalIF":11.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11465120/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142390628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JAMA dermatologyPub Date : 2025-01-01DOI: 10.1001/jamadermatol.2024.3717
Lisa P van der Rijst, Esmé Kamphuis, Marie L A Schuttelaar, Rimoon Hurmuz, Marieke M B Seyger, Anouk G M Caron, Nicolaas P A Zuithoff, N Tan Nguyen, Marijke Kamsteeg, Marjolein S de Bruin-Weller, Suzanne G M A Pasmans, Maritza A Middelkamp-Hup, Marlies de Graaf
{"title":"Drug Survival of Dupilumab, Methotrexate, and Cyclosporine A in Children With Atopic Dermatitis.","authors":"Lisa P van der Rijst, Esmé Kamphuis, Marie L A Schuttelaar, Rimoon Hurmuz, Marieke M B Seyger, Anouk G M Caron, Nicolaas P A Zuithoff, N Tan Nguyen, Marijke Kamsteeg, Marjolein S de Bruin-Weller, Suzanne G M A Pasmans, Maritza A Middelkamp-Hup, Marlies de Graaf","doi":"10.1001/jamadermatol.2024.3717","DOIUrl":"10.1001/jamadermatol.2024.3717","url":null,"abstract":"<p><strong>Importance: </strong>Dupilumab, methotrexate (MTX), and cyclosporine A (CsA) are valuable treatment options for pediatric patients with refractory moderate to severe atopic dermatitis (AD). Yet, comparative data on these treatments in pediatric patients are scarce.</p><p><strong>Objective: </strong>To evaluate drug survival of dupilumab, MTX, and CsA, and identify associated predictors in a multicenter daily practice cohort study of pediatric patients with AD.</p><p><strong>Design, setting, and participants: </strong>This multicenter daily practice cohort study included patients with AD aged 2 to 17 years treated with dupilumab, MTX, and/or CsA in 5 tertiary centers in the Netherlands between 2013 and 2023. Data were extracted from the prospective BioDay and TREAT Netherlands registries and electronic medical records.</p><p><strong>Exposures: </strong>Dupilumab, MTX, CsA.</p><p><strong>Main outcomes and measures: </strong>Drug survival was analyzed using Cox proportional hazard regression models. Univariable and multivariable Cox regression analyses were conducted to identify variables associated with drug discontinuation.</p><p><strong>Results: </strong>A total of 502 treatment episodes in 362 unique patients were included, comprising 192 dupilumab episodes, 94 MTX episodes, and 216 CsA episodes. Overall, the mean (SD) age at treatment initiation was 12.9 (3.8) years, and 272 treatment episodes (54.2%) in female patients. The 1-year, 2-year, and 3-year overall drug survival rates, respectively, were 84.1%, 72.3%, and 62.0% for dupilumab; 60.7%, 39.3%, and 25.3% for MTX; and 43.9%, 21.5%, and 10.4% for CsA. Ineffectiveness was the most frequent reason for drug discontinuation, accounting for 178 episodes (35.5%), mostly in patients treated with CsA, followed by adverse effects in 94 patients (18.7%). Treatment with MTX and treatment with CsA were independently associated with a higher risk for drug discontinuation due to ineffectiveness (hazard ratio [HR], 4.45 [95% CI, 2.38-8.34] and HR, 10.88 [95% CI, 6.23-19.02], respectively) and adverse effects (HR, 4.39 [95% CI, 2.05-9.39] and HR, 3.83 [95% CI, 1.85-7.92], respectively) compared to treatment with dupilumab. Patients aged 12 to 17 years starting systemic treatment were independently associated with a higher risk for drug discontinuation due to ineffectiveness (HR, 1.55 [95% CI, 1.10-2.20]) and adverse effects (HR, 2.39 [95% CI, 1.33-4.30]).</p><p><strong>Conclusions and relevance: </strong>This multicenter daily practice cohort study demonstrated a superior 1-year, 2-year, and 3-year overall drug survival for dupilumab, followed by MTX, with the lowest rates observed for CsA in pediatric patients with AD. This study also identified characteristics associated with discontinuation. These results provide insight into drug survival resulting from the effectiveness, safety, and tolerability of these systemic treatments in pediatric patients with AD and contribute to the optimization of","PeriodicalId":14734,"journal":{"name":"JAMA dermatology","volume":" ","pages":"12-21"},"PeriodicalIF":11.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11581549/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142465893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JAMA dermatologyPub Date : 2025-01-01DOI: 10.1001/jamadermatol.2024.5190
Lillian Xie, Daniella Forman Faden, Caroline J Stone, Lais Lopes Almeida Gomes, Rui Feng, Victoria P Werth
{"title":"Subtype and Racial Erythema Variation for Cutaneous Lupus Trials.","authors":"Lillian Xie, Daniella Forman Faden, Caroline J Stone, Lais Lopes Almeida Gomes, Rui Feng, Victoria P Werth","doi":"10.1001/jamadermatol.2024.5190","DOIUrl":"10.1001/jamadermatol.2024.5190","url":null,"abstract":"<p><strong>Importance: </strong>Regulatory guidance and standardization of disease outcome measures are essential to improve cutaneous lupus erythematosus (CLE) trial design and enhance the diversity of trial participants.</p><p><strong>Objective: </strong>To assess variability in erythema presentation across CLE subtypes and among race and ethnicity groups to determine whether these potential differences affect patient eligibility for erythema trials.</p><p><strong>Design, setting, and participants: </strong>This cross-sectional study included 377 patients with CLE enrolled in the University of Pennsylvania Cutaneous Lupus Erythematosus Database from January 2007 to December 2023. Data analyses were performed from December 2023 to February 2024.</p><p><strong>Exposure: </strong>Race and CLE subtype.</p><p><strong>Main outcomes and measures: </strong>Mean erythema calculated per the Cutaneous Lupus Erythematosus Disease Area and Severity Index (CLASI)-Activity total score divided by areas affected; then, the result was categorized as pink (1.00-1.49) or red (≥1.50) as surrogate estimates of scores per the Cutaneous Lupus Activity Investigator Global Assessment (CLA-IGA).</p><p><strong>Results: </strong>The total study cohort included 377 adult patients with CLE (mean [SD; range] age, 45.2 [14.8; 18.4-88.8] years; 305 females [80.9%] and 72 males [19.1%]; 115 Black [30.5%], 228 White [60.5%], 34 patients of other races [9.0%; Asian, multiple races, Native American/Pacific Islander, or unknown], and 11 of Hispanic/Latino ethnicity [2.9%]). The most common CLE subtype was chronic CLE (CCLE), affecting 243 patients (64.5%), followed by subacute CLE (SCLE) in 103 patients (27.3%) and acute CLE (ACLE) in 31 patients (8.2%). Significant differences were observed in average erythema across subtypes, with mean (SD) SCLE of 1.62 (0.39) and hypertrophic CCLE of 1.78 (0.25) as the only subtypes routinely classified as red. Significant differences were also observed by race and ethnicity: mean (SD) erythema score in White patients was red (1.58 [0.45]) more frequently than in Black patients (1.36 [0.40]) and patients of other races (1.30 [0.39]), in whom, on average, it was scored as pink. Importantly, among patients who would meet typical CLASI entry criteria (score ≥8) for clinical trials, erythema in more Black patients than in White patients was classified as pink (42% [96 patients] vs 24% [28 patients]), which suggests exclusion from trial participation when a baseline of red lesions is required.</p><p><strong>Conclusions and relevance: </strong>The findings of this cross-sectional study suggest that using average erythema scores per the CLA-IGA scale imposes substantial limitations on trial eligibility, specifically by race and subtype. Given the critical need to standardize CLE trial outcome measures and increase diverse representation in clinical trials, our findings support the use of the CLASI as the primary scoring tool to determine erythema trial ","PeriodicalId":14734,"journal":{"name":"JAMA dermatology","volume":" ","pages":"67-74"},"PeriodicalIF":11.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618572/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142769008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JAMA dermatologyPub Date : 2025-01-01DOI: 10.1001/jamadermatol.2024.4607
Jacob T Tribble, Ruth M Pfeiffer, Isaac Brownell, Elizabeth K Cahoon, Michael R Sargen, Meredith S Shiels, Qianlai Luo, Colby Cohen, Kate Drezner, Brenda Hernandez, Adrianne Moreno, Karen Pawlish, Brittani Saafir-Callaway, Eric A Engels, Karena D Volesky-Avellaneda
{"title":"Merkel Cell Carcinoma and Immunosuppression, UV Radiation, and Merkel Cell Polyomavirus.","authors":"Jacob T Tribble, Ruth M Pfeiffer, Isaac Brownell, Elizabeth K Cahoon, Michael R Sargen, Meredith S Shiels, Qianlai Luo, Colby Cohen, Kate Drezner, Brenda Hernandez, Adrianne Moreno, Karen Pawlish, Brittani Saafir-Callaway, Eric A Engels, Karena D Volesky-Avellaneda","doi":"10.1001/jamadermatol.2024.4607","DOIUrl":"10.1001/jamadermatol.2024.4607","url":null,"abstract":"<p><strong>Importance: </strong>Merkel cell carcinoma (MCC) is a rare but aggressive skin cancer. Quantifying the contribution of major potentially modifiable risk factors to the burden of MCC may inform prevention efforts.</p><p><strong>Objective: </strong>To estimate the population attributable fraction of MCC cases in the US that were attributable to major immunosuppressing conditions (eg, HIV, solid organ transplant, chronic lymphocytic leukemia [CLL]), ambient UV radiation [UVR] exposure, and Merkel cell polyomavirus [MCPyV]).</p><p><strong>Design, setting, and participants: </strong>This epidemiological assessment combined data from population-based registries and case series and included cases of MCC that were diagnosed from January 2001 to December 2019 diagnosed in people with HIV, solid organ transplant recipients, and patients with CLL who were identified through population-based cancer registries and linkages with HIV and transplant registries. UVR-based on cloud-adjusted daily ambient UVR irradiance was merged with cancer registry data on the county of residence at diagnosis. Studies reporting the prevalence of MCPyV in MCC specimens collected in the US were combined via a meta-analysis.</p><p><strong>Exposures: </strong>HIV, solid organ transplant, CLL, UVR, and MCPyV.</p><p><strong>Main outcomes and measures: </strong>Population attributable fraction of MCC cases attributable to major risk factors.</p><p><strong>Results: </strong>A total of 38 020 MCCs were diagnosed in the US among xx patients (14 325 [38%] female individuals; 1586 [4%] Hispanic, 561 [1%] non-Hispanic Black, and 35 171 [93%] non-Hispanic White individuals). Compared with the general US population, MCC incidence was elevated among people with HIV (standardized incidence ratio [SIR], 2.78), organ transplant recipients (SIR, 13.1), and patients with CLL (SIR, 5.75). Due to the rarity of these conditions, only 0.2% (95% CI, 0.1%-0.3%) of MCC cases were attributable to HIV, 1.5% (95% CI, 1.4%-1.7%) to solid organ transplant, and 0.8% (95% CI, 0.5%-1.3%) to CLL. Compared with individuals of racial and ethnic minority groups, MCC incidence was elevated among non-Hispanic White individuals at lower and higher ambient UVR exposure levels (incidence rate ratios: 4.05 and 4.91, respectively, for MCC on the head and neck). Overall, 65.1% (95% CI, 63.6%-66.7%) of MCCs were attributable to UVR. Based on a meta-analysis of 19 case series, 63.8% (95% CI, 54.5%-70.9%) of MCCs were attributable to MCPyV. Studies were identified from a MEDLINE search performed on October 12, 2023.</p><p><strong>Conclusions and relevance: </strong>The results of this study suggest that most MCC cases in the US were attributable to ambient UVR exposure or MCPyV, with a small fraction due to immunosuppressive conditions. Efforts to lower MCC incidence could focus on limiting UVR exposure.</p>","PeriodicalId":14734,"journal":{"name":"JAMA dermatology","volume":" ","pages":"47-55"},"PeriodicalIF":11.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11736500/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142728818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JAMA dermatologyPub Date : 2025-01-01DOI: 10.1001/jamadermatol.2024.5077
Twan Sia, Farah Abou-Taleb, Howa Yeung, Anne Lynn S Chang
{"title":"LGBTQ+-Inclusive Language in Patient-Reported Outcome Measures for Acne Vulgaris.","authors":"Twan Sia, Farah Abou-Taleb, Howa Yeung, Anne Lynn S Chang","doi":"10.1001/jamadermatol.2024.5077","DOIUrl":"10.1001/jamadermatol.2024.5077","url":null,"abstract":"","PeriodicalId":14734,"journal":{"name":"JAMA dermatology","volume":" ","pages":"108-110"},"PeriodicalIF":11.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618628/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142768998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}