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Labs/Biomarkers

The Concern about Seronegative RA

Jack Cush, MD

A current review of seronegative RA (SNRA) by D’Onofrio, et al in npj Autoimmunity shows the diverse fate of seronegative RA - which can resolve, persist or become refractory. Clearly dedicated trials of SNRA are needed to better predict.

Dr. John Cush
@RheumNow
Exagen studies 192 established RA pts (383 controls) for Abs: CCP2, RF IgA, RF IgM, PAD4 (IgA, IgG). RA signif assoc w/ CCP2+ (OR 110), RF (>7), PAD4 (3.5-5.9). In CCP neg - only PAD4 IgG (2.87) & RF (2.2) assoc w/ RA, w/ only small Dx gain (ΔAUC 0.02–0.04). https://t.co/isf7aMf24O
sheila
@RHEUMarampa
Prof. AHoi presented their study on ESR as potential source of risk info in SLE 48% discordance bet ESR & conv. serology Isolated ⬆️ESR levels showed ⬆️ assoc with dse activity and flare; risk increases further if combi ⬆️ESR+low c3/4+antidsDNA @RheumNow #APLAR2026 https://t.co/BvC0OZFjd5
Dr. John Cush
@RheumNow
Boston study of 25 systemic sclerosis pts has shown spatial frequency domain imaging (SFDI) is a noninvasive evaluation of skin, but only has weak-to-moderate correlation w/ mRSS (r −0.38 to −0.48); somewhat better w/ histology/fibrosis (r −0.35 to −0.52) https://t.co/N1uSWjNEcl
Dr. John Cush
@RheumNow
REVEAL study enrolled 418 early microscopic polyangiitis pts - High baseline (Pre-Rx) neutrophil-to-lymphocyte ratio (NLR > 10) was assoc w/ signif higer Dz activity (BVAS), alveolar hemorrhage, poor renal function, reduced survival & higher infection-related mortality (P = https://t.co/wYBOz00GGB

Treat-to-Target has Excellent 10-Year Outcomes in RA

MedPage Today

Most patients with rheumatoid arthritis (RA) whose initial treatment used a stringent treat-to-target strategy in a clinical trial were in remission 10 years later, with only modest radiographic progression over that time, researchers said.

Dr. John Cush
@RheumNow
REVEAL study enrolled 418 early microscopic polyangiitis pts - High baseline (Pre-Rx) neutrophil-to-lymphocyte ratio (NLR > 10) was assoc w/ signif higer Dz activity (BVAS), alveolar hemorrhage, poor renal function, reduced survival & higher infection-related mortality (P = https://t.co/vXuRwXP9gc

Joint Disease in SLE Reconsidered

Jack Cush, MD

A new Frontiers in Immunology review from Ong, Wincup and colleagues, shows that lupus arthropathy is not a single uniform entity and it is biologically under-studied and clinically mismeasured, Moreover, the biology of lupus arthritis may shed light on choosing the best therapy for MSK

Dr. John Cush
@RheumNow
Single center study of Probiotics in #PsA showed no benefit. 66 moderately active PsA pts (PASDAS>3.2) on stable Tx: Rx probiotic vs PBO x 12 wks. 56 pts analyzed, PASDAS <3 responders: 43% probiotic vs 65% PBO (P 0.167), w/ no change in gut permeability markers or stool https://t.co/0JUZ8SrRuw
Dr. John Cush
@RheumNow
Study of Prognostic Nutritional Index (PNI) in 984 RA pts shows PNI is independently inversely corelated w/ RA dz activity, esp. PNI <45. PNI = ser albumin & lymphocyte count calculation (10 × s albumin [g/dL]) + (0.005 × lymphocyte count/mm³]). Other studies have shown modest https://t.co/AV3AGXwSfg
Dr. John Cush
@RheumNow
Are Concerns Over Avacopan Efficacy Overblown? Avacopan (Tavneos), the complement pathway inhibitor for antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV), appeared strongly effective in an Italian registry study, maybe a step toward putting questions about https://t.co/4w2INKPFeT
Dr. John Cush
@RheumNow
Singapore center study of 119 IIM pts (DM 57%; ASyS 23%, OM 15%), IMNM 4%). MDA5 Abs seen in 35% DM. Vs ASyS, MDA5-DM had signif more Skin Sxs (ulcers, papules, Gottrons, heliotrope, periungual erythema). MSK Sxs equal & higher CK levels in ASyS MDA5. 79% DM-ILD were MDA5+ https://t.co/hWaaeLUYkz

Are Concerns Over Avacopan Efficacy Overblown?

MedPage Today

Avacopan (Tavneos), the complement pathway inhibitor for antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV), appeared strongly effective in an Italian registry study -- a step, maybe, toward setting to rest questions about its efficacy, if not its safety.

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