Maureen Dubreuil, MD MSc
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spondymd.bsky.social
Maureen Dubreuil, MD MSc
@spondymd.bsky.social
Spondyloarthritis-focused Rheumatologist
Boston U School of Med | VA Boston

https://www.bumc.bu.edu/camed/profile/maureen-dubreuil/
🗣️ How might implementation science be applied in your field? Are there evidence-based interventions that need broader uptake?
September 23, 2025 at 3:16 PM
Proctor’s Conceptual model spans the intervention 💡, strategies 🧩, outcomes 🛠️ and efficacy/effectiveness 📊. pmc.ncbi.nlm.nih.gov/articles/PMC...
Outcomes for Implementation Research: Conceptual Distinctions, Measurement Challenges, and Research Agenda
An unresolved issue in the field of implementation research is how to conceptualize and evaluate successful implementation. This paper advances the concept of “implementation outcomes” distinct from s...
pmc.ncbi.nlm.nih.gov
September 23, 2025 at 3:16 PM
CFIR (consolidated framework for implementation research) is a determinant framework addresses the inner and outer settings, the implementation process, the innovation and the individuals’ roles and characteristics. implementationscience.biomedcentral.com/articles/10....
The updated Consolidated Framework for Implementation Research based on user feedback - Implementation Science
Background Many implementation efforts fail, even with highly developed plans for execution, because contextual factors can be powerful forces working against implementation in the real world. The Consolidated Framework for Implementation Research (CFIR) is one of the most commonly used determinant frameworks to assess these contextual factors; however, it has been over 10 years since publication and there is a need for updates. The purpose of this project was to elicit feedback from experienced CFIR users to inform updates to the framework. Methods User feedback was obtained from two sources: (1) a literature review with a systematic search; and (2) a survey of authors who used the CFIR in a published study. Data were combined across both sources and reviewed to identify themes; a consensus approach was used to finalize all CFIR updates. The VA Ann Arbor Healthcare System IRB declared this study exempt from the requirements of 38 CFR 16 based on category 2. Results The systematic search yielded 376 articles that contained the CFIR in the title and/or abstract and 334 unique authors with contact information; 59 articles included feedback on the CFIR. Forty percent (n = 134/334) of authors completed the survey. The CFIR received positive ratings on most framework sensibility items (e.g., applicability, usability), but respondents also provided recommendations for changes. Overall, updates to the CFIR include revisions to existing domains and constructs as well as the addition, removal, or relocation of constructs. These changes address important critiques of the CFIR, including better centering innovation recipients and adding determinants to equity in implementation. Conclusion The updates in the CFIR reflect feedback from a growing community of CFIR users. Although there are many updates, constructs can be mapped back to the original CFIR to ensure longitudinal consistency. We encourage users to continue critiquing the CFIR, facilitating the evolution of the framework as implementation science advances.
implementationscience.biomedcentral.com
September 23, 2025 at 3:16 PM
PARIHS is a determinant framework based on the concept that implementation is a function of: A. Evidence (research, clinical expertise, patient preferences), B. Context (setting, resources) and C. Facilitation through influence and relationships.
September 23, 2025 at 3:16 PM
🖼️Frameworks exist in 3 forms: (1) Process: how to plan and execute a strategy, (2) Determinant: factors that impede or enable the implementation process and (3) Evaluative: selection of outcomes to study
September 23, 2025 at 3:16 PM
IS uses conceptual frameworks to systematically understand why people do what they do (patients, clinicians, healthcare systems), how to operationalize an intervention, how to scale it and how to assess outcomes
September 23, 2025 at 3:16 PM
✅ IS takes places following efficacy and effectiveness studies, within controlled settings and in practice.
3 types of hybrid IS studies: Type 1: primary aim is to determine effectiveness, Type 2: Codetermining effectiveness & feasibility, Type 3: focuses on implementation
September 23, 2025 at 3:16 PM
💡Implementation science (IS) is the study of methods and strategies that facilitate uptake of evidence based interventions into routine practice.
September 23, 2025 at 3:16 PM
Uterus, on the other hand, gets mixed reviews.
July 1, 2025 at 12:15 AM
Skythread
blue.mackuba.eu
May 8, 2025 at 7:51 PM
🥅 NETs also important in SpA! Uveitis has high serum NETs (human & mouse studies). When neutrophil function is blocked using anti-Ly6G, IL-17 is 🔻 in ocular fluid. NETs provoke intraocular inflammation and also IL17-mediated systemic inflammation. acrjournals.onlinelibrary.wiley.com/doi/10.1002/...
Neutrophil Extracellular Traps–Associated RNA Impedes CD4+ Treg Differentiation by TLR7–IRF7 Axis in Ankylosing Spondylitis
Objective Our objective was to investigate the role of neutrophil extracellular traps (NETs) in the pathogenesis of inflammatory disorders in ankylosing spondylitis (AS). Methods Local and circula.....
acrjournals.onlinelibrary.wiley.com
May 8, 2025 at 7:49 PM
Neutrophils are important in SpA! Card9 was found in axSpA GWAS (gain of function). It is involved a canonical NFKB pathway ➡️ inflammation via IL-1beta. Ruth Napier et al. found Card9 in neutrophils potentiates IL-17 production by CD4+ T cells doi.org/10.1136/ard-...
Redirecting
doi.org
May 8, 2025 at 7:49 PM
CD74 is on MHC I & is the receptor for macrophage migration inhibitory factor (MIF). Anti-CD74 are ⬆️ in SpA and MIF concentration is associated with rapid axSpA progression. MIF is made by mesenchymal stem cells under stress promotes Th17 differentiation. www.science.org/doi/10.1126/...
Macrophage migration inhibitory factor drives pathology in a mouse model of spondyloarthritis and is associated with human disease
Macrophage migration inhibitory factor produced by neutrophils worsens spondyloarthritis by inducing a pathogenic TH17 phenotype in Tregs.
www.science.org
May 8, 2025 at 7:49 PM
⛔ How might HLA-B27 *negative* axSpA develop? Mechanisms include anti-CD74, MIF, Card9 and NETs! acrjournals.onlinelibrary.wiley.com/cms/asset/11...
acrjournals.onlinelibrary.wiley.com
May 8, 2025 at 7:49 PM
CD8+ T cells expressed marker for mucosal trafficking and differentiation including CD161 and integrins. Early activation of pathogenic T cells may occur in enteric organs, and then migrate to gut and eye. df6sxcketz7bb.cloudfront.net/manuscripts/...
May 8, 2025 at 7:49 PM
🦠 Blood and synovial fluid in axSpA contains T cell clones w/ specific TCR beta chains (e.g. TRBV9). TRBV9 cells were screened against a peptide library 📚 finding YEIH, a peptide conserved in bacteria (E. coli, salmonella, shigella, klebsiella, yersinia).
www.nature.com/articles/s41...
Autoimmunity-associated T cell receptors recognize HLA-B*27-bound peptides - Nature
A study shows that cross-reactivity of microbial antigens and self-antigens presented by HLA-B*27 may be important in the pathogenesis of diseases associated with HLA-B*27 and identifies the shared bi...
www.nature.com
May 8, 2025 at 7:49 PM
Peptide processing is altered in axSpA. Peptides are trimmed in the endoplasmic reticulum by enzymes ERAP 1 & 2. ERAP variants have been identified through GWAS in axSpA but some studies have shown that ERAP knock out is *protective* against axSpA. More research is needed.
May 8, 2025 at 7:49 PM
🧬 Risk of axSpA differs based on HLA-B27 subtype. HLAB27 is the gene that codes for MHC Class I, which presents peptides to CD8+ T cells. ❄️HLAB27 MHCs are unique- they misfold as a homodimers 👯 which leads to a conserved cell stress response: the unfolded protein response (UPR) and inflammation.
May 8, 2025 at 7:49 PM