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Dermatology

Risk of Psoriasis is increased 19% by long-term exposure to Particulate Matter (PM2.5 & PM10; adjHR 1.19), while short-term exposure increases risk of psoriasis exacerbation (adjusted OR 1.03). Stronger in younger, urban, lower SES, ever-smokers, & comorbid allergies https://t.co/pd6S13RG1B
Dr. John Cush @RheumNow( View Tweet )

EULAR 2026 Rheumatology RoundUp

It’s time for Rheumatology RoundUp from EULAR 2026 from London, UK. Drs. Artie Kavanaugh and Jack Cush review their choice presentations from the meeting, offering their perspectives on impact and applicability.

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Synovio-entheseal inflammation and the tipping point from PsO to PsA

Psoriatic arthritis develops in approximately 20 to 30 per cent of patients with psoriasis, yet predicting which patients will make the transition and when, has remained one of the most clinically challenging questions in rheumatology. A study presented at EULAR 2026 provides the most granular

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Biologic Class Determines PsA Risk in Psoriasis

At EULAR 2026, Dr Nikolaos Kougkas presented data from a unique real-world cohort built within joint dermatology–rheumatology university centers, following 394 patients with psoriasis on bDMARDs for up to 17 years. We sat down with Dr Kougkas to unpack the methodology, challenge the results, and

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#OP0337 In 48-week WILLOW🌳 LTE, oral TLR7/8 inhibitor enpatoran showed sustained improvements in cutaneous lupus activity with high CLASI-50/70 response rates and consistent safety profile across doses. Encouraging long-term data for CLE/SLE skin disease. #EULAR2026 @RheumNow https://t.co/6y0HjaTMqh
Mrinalini Dey @DrMiniDey( View Tweet )
Prof. Wittmann discusses the current tx for CLE using a stepwise approach. Smoking is a challenge in D2T skin #lupus due to data showing that smoking reduces efficacy of antimalarials & worsens dse act & damage. Advocate for smoking cessation! @Rheumnow #EULAR2026 https://t.co/pEWLJAkBAJ
Brand new #MOA in #Rx of #skin #lupus! #Litifilimab - acts on #dendritic cells ⬇️decreases #chemokines & #cytokines +RCT in #cutaneous features of lupus N=93 2:1 randomized #liti v #pbo Rapid onset <4wks HIgh #CLASI response #EULARbest #EULAR226 @RheumNow @eular_org POS438 https://t.co/TXqggO1jCU
Janet Pope @Janetbirdope( View Tweet )
Interesting pilot study using line-field confocal OCT for CLE The “virtual biopsy” identified distinct layer-specific patterns across diff CLE subtypes including distinctions bet ACLE & rosacea (dil. vessels, demodex mites, periannexal infil) AbsOP099 @RheumNow #EULAR2026 https://t.co/yQSc6u4oYV
DERM on RheumNow PODCAST (May 2026) The Derm on RheumNow podcast is a collection of Citations and Content curated for dermatologists – addressing Psoriasis, PsA, CLE, vasculitis, HS, and other CTD skin disorders. Dermatology drugs, biologics, JAKs - their use, efficacy, and https://t.co/0AEAxadBFT
Dr. John Cush @RheumNow( View Tweet )
Count Your Telangiectasias (5.29.2026) Dr. Jack Cush reviews the news, journal articles and missed quiz questions. https://t.co/KDXijQMdfr https://t.co/2Vi3MKZZbk
Dr. John Cush @RheumNow( View Tweet )
Retrospective Intl SSc study of MD & PT telangiectasia counts (TC) (0, 1–6, 7–15 or > 15) of face, forearms & hands. High TC correlated w/ PAH (AUC 0.824–0.875) & digital ulcers. Moderate agreement betw MD & Pt for face & forearms TC (kappa 0.648 & 0.605, p< 0.001) https://t.co/k7tVeJFeCi
Dr. John Cush @RheumNow( View Tweet )

Count Your Telangiectasias (5.29.2026)

Dr. Jack Cush reviews the news, journal articles and missed quiz questions.

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BE BOLD Week 16 data - Bimekizumab vs. Risankizumab in PsA

UCB has released the Week 16 results from BE BOLD trial that will be presented at EULAR 2026 in London on Saturday, June 6. This head-to-head trial demonstrates that at week 16, bimekizumab (BKZ) yielded superior ACR50 results compared to risankizumab (RKB) adults with active psoriatic

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A Role for Plasmacytoid Dendritic Cells in Lupus

Plasmacytoid dendritic cells (pDCs) have been strongly implicated in the pathogenesis of lupus, as their primary product, type I interferon, drive systemic lupus erythematosus and cutaneous lupus erythematosus. A recent comprehensive review synthesizes the available data on pDCs, and,

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Update on Multicentric Reticulohistiocytosis Have you ever seen multicentric reticulohistiocytosis (MRH)? Don't worry, it's a rare non-Langerhans cell histiocytosis condition characterized by papulonodular skin lesions and symmetric erosive polyarthritis, and it has only been https://t.co/koXOwktDgA
Dr. John Cush @RheumNow( View Tweet )
Parvovirus B19 Infection - Images from JAMA Dermatology. 40yoM 2-days asymptomatic rash w/ fever to 39°C, w/ arthralgias, Rash on BL cheeks, inguinal, flanks, axilla. WBC =2K, CRP 1.24 mg/dl. Dx by PCR for parvovirus B19 DNA https://t.co/LGGnabvFvA https://t.co/XzPlaWkIfz
Dr. John Cush @RheumNow( View Tweet )
Toll-Like Receptor Drugs Effective in Cutaneous Lupus Enpatoran, an investigational oral drug that inhibits Toll-like receptors (TLR) 7 and 8, was superior to placebo in relieving lupus skin manifestations in a dose-finding phase II trial. https://t.co/R1wbJHXwjD https://t.co/65HtG0Te94
Dr. John Cush @RheumNow( View Tweet )

Infectious Rheumatology (5.15.2026)

Dr. Jack Cush discusses his favorite journal articles from the past week on RheumNow.com.

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Toll-Like Receptor Drugs Effective in Cutaneous Lupus

MedPage Today

Enpatoran, an investigational oral drug that inhibits Toll-like receptors (TLR) 7 and 8, was superior to placebo in relieving lupus skin manifestations in a dose-finding phase II trial.

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Parvovirus B19 Infection - Images from JAMA Dermatology. 40yoM 2-days asymptomatic rash w/ fever to 39°C, w/ arthralgias, Rash on BL cheeks, inguinal, flanks, axilla. WBC =2K, CRP 1.24 mg/dl. Dx by PCR for parvovirus B19 DNA https://t.co/LGGnabvFvA https://t.co/yyBF9pEGls
Dr. John Cush @RheumNow( View Tweet )
By @RheumattDoc #Psoriasis and nail changes #PsA #PsoriaticArthritis #enthesitis #dactylitis https://t.co/rxH2zrGBwC
Dr Gurdeep S Dulay @gurdeep_dulay( View Tweet )
DERM on RheumNow PODCAST (April 2026) The Derm on RheumNow podcast is a collection of Citations and Content curated for dermatologists – addressing Psoriasis, PsA, CLE, vasculitis, HS, other CTD skin disorders. dermatology drugs, biologics, JAKs - their use, efficacy and side https://t.co/SlCGA364gj
Dr. John Cush @RheumNow( View Tweet )
Review of GLP-1 Receptor Agonists in Psoriasis Psoriasis is a chronic immune-mediated inflammatory disease plaqued by systemic comorbidities that increase morbidity, mortality, and treatment complexity. Obesity is a significant contributor to psoriatic disease. https://t.co/R1Uutdjcvz
Dr. John Cush @RheumNow( View Tweet )

Review of GLP-1 Receptor Agonists in Psoriasis

Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) have transformed cardiometabolic medicine and are now attracting intense interest in inflammatory disorders.

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Sun Pharma buys out Organon w/ $11.75 billion buyout. Both generated $6.2 billion in 2025 sales. Organon spun off from ‌Merck in 2021, specializes in women’s health and is top 7 in biosimilars. Sun is into dermatology, ophthalmology and oncology-dermatology. https://t.co/zb4hucTqCJ
Dr. John Cush @RheumNow( View Tweet )
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