Iván Cusácovich retweetledi
Iván Cusácovich
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Iván Cusácovich
@icusacovich
Internista con especial dedicación a las enfermedades autoinmunes sistémicas. Hospital Clínico Universitario de Valladolid Línea de investigación en lupus GEAS
Valladolid Katılım Eylül 2016
99 Takip Edilen492 Takipçiler
Iván Cusácovich retweetledi

Brepocitinib in Dermatomyositis
The NEJM reports that brepocitinib, an oral TYK2–JAK1 inhibitor, was studied in a phase 3 trial of refractory dermatomyositis (DM) patients and shown to have significant benefits at the higher dose.
buff.ly/BXagpMP

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Iván Cusácovich retweetledi

Protesta de los médicos en León: "Estamos desbordados y con una sobrecarga inasumible" leer.diariodecastillayleon.es/f8ko42
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Iván Cusácovich retweetledi
Iván Cusácovich retweetledi

Galicia prohíbe bebidas energéticas y vapeadores en menores.
Enhorabuena a @AlfonsoRuedaGal y al consejero de sanidad @AntonioGCaamano por este paso en la protección de la salud de los adolescentes.
consalud.es/autonomias/gal…
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🆕 AAO 2026 Guidelines for #Hydroxychloroquine Retinopathy Screening
OCT + FAF (wide-pattern Fundus Autofluorescence) are the primary screening tests for HCQ Retinopathy
Why no longer VF? FAF has better recognition of pericentral retinopathy.
#RheumX #RheumTwitter #OphthoX

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Iván Cusácovich retweetledi

Hydroxychloroquine Lowers SLE and RA Hospitalizations
A population-based study from British Columbia, Canada, shows that antimalarial adherence was associated with a lower risk of hospital admission in patients with rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE).
buff.ly/quhok1L

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Iván Cusácovich retweetledi

Macrophage Activation Syndrome is a syndrome - not a diagnosis.
Before escalating immunosuppression, always identify the underlying trigger.
In children especially, missing malignancy can be catastrophic.
Here’s a structured approach to avoid that mistake. 👇
#Rheumatology #MAS #HLH @Kanjivellam @IhabFathiSulima @DrAkhilX @DocPriyamMD @Janetbirdope #MedTwitter #ClinicalImmunology

Aravind Palraj@Rheumat_Aravind
Macrophage Activation Syndrome (MAS) can deteriorate in hours. Early recognition and structured escalation save lives. Here’s a practical treatment escalation map covering: • Early recognition • First-line therapy • Cytokine blockade • Refractory strategies • Organ support Infographic below 👇 #Rheumatology #MedTwitter @DrAkhilX @IhabFathiSulima #Immunology #CriticalCare
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Iván Cusácovich retweetledi

FDA has granted Fast Track designation to J&Js nipocalimab for use in #SLE based on the results of a Phase 2b JASMINE study in which nipocalimab demonstrated reduction in lupus disease activity and potential for steroid sparing jnj.com/media-center/p…

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Iván Cusácovich retweetledi

✅ And...this is the beginning of the European #Lupus Meeting 2026 #ELM2026 by @SLEuroSociety 👍 Special thoughts for those living with #Lupus, wherever you are in the world 🌎🌏🌍 as well as for our friends from the Middle-East, in these very complex times.

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Iván Cusácovich retweetledi

Hoy hemos asistido a una jornada de actualización en Enfermedades Autoinmunes Sistémicas en Castilla y León (EASCyL).
Nuestro equipo ha estado presente y el Dr. @icusacovich ha intervenido como ponente junto con otros grandes referentes.



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Iván Cusácovich retweetledi
Iván Cusácovich retweetledi

Take a look at our last study focused in histopathological placental findings in women with antiphospholipid antibodies and fetal loss beyond 12 weeks of pregnancy👇👇👇👇
authors.elsevier.com/c/1meniWcm3Sz3L
@hospitalclinic @MAS_Clinic @APClinicBCN @BCNatalResearch
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Iván Cusácovich retweetledi
Iván Cusácovich retweetledi

@MariolaUrrea Señora, la vocación no es un recurso renovable infinito. Si de verdad preocupa el paciente, lo coherente es arreglar lo que está rompiendo a quienes lo atienden. Gracias @el_pais, cuando el relato arranca con “bajo seguimiento según datos oficiales” ya sabemos quién pone el titular y quién pone el asterisco.
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Iván Cusácovich retweetledi

Pulmonary hypertension in rheumatology is not rare.
It is missed.
In systemic sclerosis, it’s a major cause of mortality.
And early treatment changes survival.
Unexplained dyspnea in a CTD patient?
Check DLCO. Check NT-proBNP. Think PAH.
2022 ESC/ERS definition:
mPAP >20 mmHg + PVR ≥2 WU + PAWP ≤15 mmHg.
Screen yearly in systemic sclerosis.
Echo + DLCO + NT-proBNP. Use DETECT.
Right heart catheterization is mandatory before PAH-specific therapy.
Treat early. Risk stratify. Combine therapy when indicated.
Early detection + aggressive management = improved survival.
#PulmonaryHypertension #Rheumatology #SystemicSclerosis #CTD #PAH #MedTwitter @DrAkhilX #CardioRheum #MedicalEducation

Aravind Palraj@Rheumat_Aravind
🧵 Pulmonary Hypertension (PH) in Rheumatology — Comprehensive Overview ⬇️ @IhabFathiSulima @DrAkhilX @Janetbirdope @CelestinoGutirr @IJRheum #MedTwitter #Rheumatology
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Iván Cusácovich retweetledi

🔵 #EDITORIAL Clamor de los médicos contra la ministra García
🗣️ Mejor haría la ministra en atender las peticiones razonables de más de 300.000 facultativos que hay en España, que en atacar la colaboración público-privada en el Sistema Nacional de Salud abc.es/opinion/editor…
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🧬 Engineered Sialylated IgG1 Fc: A Dose-Sparing Alternative to IVIG?
🌍 Why Look Beyond IVIG?
Intravenous immunoglobulin (IVIG) is a pooled IgG preparation from thousands of healthy donors.
It is widely used in:
•Primary immunodeficiencies (replacement therapy)
•Autoimmune and inflammatory diseases (high dose: 1–2 g/kg)
Although effective, IVIG faces major limitations:
•💰 High cost
•🩸 Limited donor-dependent supply
•📦 Complex manufacturing
•💉 Very high dosing requirements
🧪 The Breakthrough: Recombinant Sialylated IgG1 Fc (sFc)
Jones et al. (Science, 2025) developed a recombinant sialylated IgG1 Fc fragment (sFc) with:
•Enhanced affinity for the inhibitory Fc receptor FcγRIIB
•Potent anti-inflammatory activity
•Dramatically reduced dose requirement compared with IVIG
🔬 Key Finding
In FcγR-humanized mouse models of autoimmune disease:
•sFc showed anti-inflammatory efficacy at ~25-fold lower dose than IVIG.
•An engineered variant (V11 sFc) with ~37-fold higher affinity for FcγRIIB retained efficacy at one-tenth the dose of wild-type sFc.
⚙️ Mechanistic Insights
IVIG works via multiple, non-exclusive mechanisms, involving both:
•Fc-mediated effects
•F(ab′)₂-mediated effects
🧩 Fc-Mediated Mechanisms Include:
1.Blockade of activating FcγRs (Type I FcRs)
2.Saturation of neonatal Fc receptor (FcRn) → accelerated autoantibody clearance
3.Upregulation of inhibitory FcγRIIB
4.Engagement of Type II Fc receptors (e.g., DC-SIGN, CD23) via Fc sialylation
🍬 Role of Fc Sialylation
Sialylation alters Fc conformation:
•Non-sialylated Fc → Open conformation → Binds Type I FcγRs
•Sialylated Fc → Closed conformation → Reduced Type I binding; promotes Type II FcR binding (e.g., DC-SIGN)
What Jones et al. clarified:
•Sialylation enhances anti-inflammatory activity.
•But engineered high-affinity FcγRIIB binding can partially retain efficacy even when sialylation is removed.
•Thus, both sialylation-dependent and -independent mechanisms exist.
💡 Clinical Implications
Potential Advantages Over IVIG:
•✅ Dramatically lower dose requirement
•✅ Reduced dependence on plasma donors
•✅ Scalable recombinant production
•✅ More targeted immunomodulation
•✅ Potential cost reduction
#RheumattDoc #MedTwitter #RheumTwitter #Medicine #rheumatology @DrAkhilX @IhabFathiSulima @CelestinoGutirr @DurgaPrasannaM1 @Urchilla01 @NatRevRheumatol

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Iván Cusácovich retweetledi

Cinco mil médicos contra el Estatuto Marco frente al ministerio de Mónica García: "Hacía falta ya una huelga en Sanidad"
@elmundoes elmundo.es/ciencia-y-salu…
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Iván Cusácovich retweetledi

Si eres tutor, jefe de estudios, colaborador docente o residente @sefseareda es tu sociedad y este es tu congreso
📆Resérvate la fecha del 21 a 23 de octubre de 2026
📍Nos vemos en Toledo!!

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