Publications by authors named "Sloan A"

Background: Dermatomyositis is a chronic autoimmune disease with distinctive cutaneous eruptions and muscle weakness, and the pathophysiology is characterised by type I interferon (IFN) dysregulation. This study aims to assess the efficacy, safety, and target engagement of dazukibart, a potent, selective, humanised IgG1 neutralising monoclonal antibody directed against IFNβ, in adults with moderate-to-severe dermatomyositis.

Methods: This multicentre, double-blind, randomised, placebo-controlled, phase 2 trial was conducted at 25 university-based hospitals and outpatient sites in Germany, Hungary, Poland, Spain, and the USA.

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Background: Meningiomas exhibit considerable clinical and biological heterogeneity. We previously identified four distinct molecular groups (immunogenic, NF2-wildtype, hypermetabolic, proliferative) that address much of this heterogeneity. Despite the utility of these groups, the stochasticity of clustering methods and the use of multi-omics data for discovery limits the potential for classifying prospective cases.

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Objectives: To identify evidence and guidelines relating to the use of antibiotics in the management of odontogenic facial swellings in children and adolescents.

Data: Articles relating to odontogenic facial swellings in children and adolescents aged 0-16 years were included. Articles in which paediatric data could not be differentiated from adult data or where the age of participants were unknown were excluded.

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  • Autoerotic asphyxial deaths, primarily involving neck compression, are rare but notable, with a study analyzing 72 cases in Australia from 2000 to 2022 to understand their medical and legal implications.
  • The demographic findings highlighted a tendency for victims to be Caucasian males under 50, while the study discovered a range of injuries, including both minor and severe, alongside consistent evidence of sexual paraphernalia and isolation in these cases.
  • The researchers advocate for better categorization of autoerotic neck compression deaths to differentiate them from suicidal and homicidal cases, emphasizing the need for incorporating new variables in future investigations.
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Mitochondrial dysfunction is a critical factor in the pathogenesis of Alport syndrome (AS), contributing to podocyte injury and disease progression. Ezetimibe, a lipid-lowering drug, is known to inhibit cholesterol and fatty acid uptake and to reduce triglyceride content in the kidney cortex of mice with AS. However, its effects on lipid droplet (LD) utilization by mitochondria have not been explored.

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Background: Glioblastoma is the most aggressive adult primary brain cancer, characterized by significant heterogeneity, posing challenges for patient management, treatment planning, and clinical trial stratification.

Methods: We developed a highly reproducible, personalized prognostication and clinical subgrouping system using machine learning (ML) on routine clinical data, MRI, and molecular measures from 2,838 demographically diverse patients across 22 institutions and 3 continents. Patients were stratified into favorable, intermediate, and poor prognostic subgroups (I, II, III) using Kaplan-Meier analysis (Cox proportional model and hazard ratios [HR]).

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Objectives: To compare the use of orifice barriers (OB) in root-filled teeth (RFT) between specialist endodontic practitioners (SEP) and general and other specialist practitioners (GDP+), and identify common materials, reasons for selection, and techniques.

Methods: An online survey was distributed to SEP and GDP+ practising in Australia. Demographic and multiple-choice questions relating to material selection and technique choices were asked to evaluate and relate usage patterns to practising and training backgrounds.

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The nucleoprotein (NP) of type A influenza virus (IAV) is highly conserved across all virus strains, making it an attractive candidate antigen for universal vaccines. While various studies have explored NP-induced mucosal immunity, here we interrogated the mechanistic differences between intramuscular (IM) and intranasal (IN) delivery of a recombinant adenovirus carrying NP fused with a bifunctional CD40 ligand. Despite being less effective than IM delivery in inducing systemic cellular immune responses and antibody-dependent cellular cytotoxicity (ADCC), IN immunization elicited superior antigen-specific recall humoral and cellular response in the nasal associated lymphoid tissue (NALT) of the upper respiratory tract, the initial site of immune recognition and elimination of inhaled pathogens.

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  • - The study validates a new DNA methylation-based predictor for meningiomas that has been enhanced for use with modern methylation arrays and shows improved accuracy over the standard 2021 WHO grading system.
  • - It uses data from 1,347 meningioma cases, including prospective cases and an external cohort, demonstrating that both the new and original models effectively predict early postoperative recurrence, especially within specific risk subgroups.
  • - The new predictor, which is simpler with fewer features, allows for better clinical decision-making, including the use of adjuvant radiotherapy for high-risk patients, and is available as an easy-to-use tool for improved patient stratification in clinical trials.
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Background: Despite effective vaccines and treatments for COVID-19, clinical burden persists. An unmet need exists for additional effective agents with safety profiles allowing use across a broad population. Ibuzatrelvir is an orally bioavailable SARS-CoV-2 Mpro inhibitor that has demonstrated in vitro antiviral activity and low potential for safety concerns, including drug-drug interactions.

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  • The recommendations focus on adult patients with recurrent WHO grade 2 infiltrative diffuse glioma, such as oligodendroglioma and astrocytoma.
  • Advanced imaging techniques, including magnetic resonance spectroscopy and PET scans, are suggested for better assessment of tumor recurrence compared to standard MRI in these patients.
  • Molecular testing for IDH mutations and MGMT promoter methylation is recommended to aid in diagnosis and prognosis, while measuring proliferation indices like MIB-1 is also suggested for predicting survival and treatment planning.
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  • A study assessed the efficacy and safety of ritlecitinib, a JAK3/TEC inhibitor, in treating nonsegmental vitiligo among patients with different skin types over 24 weeks, involving 247 patients with light skin and 117 with dark skin.
  • Results showed significant improvement in facial vitiligo scores after 24 weeks for both skin types, with a 15.2% change for light skin and 37.4% for dark skin, alongside continuous repigmentation through week 48.
  • Additionally, the study noted variations in immune response markers related to skin type, suggesting that dark-skinned patients may respond to the treatment faster than those with light skin
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Sex differences are evident in adverse events (AEs) related to brain tumors, yet sex differences in AEs specific to brain metastases (BrMs) are underexplored. Lung cancer BrMs dominate among BrM, comprising over half of cases. This study examined sex differences in AEs associated with lung cancer BrMs in individuals aged 66 or older using the SEER-Medicare dataset.

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While historically confined to endemic areas, Monkeypox virus (MPXV) infection has increasingly garnered international attention due to sporadic outbreaks in non-endemic countries in the last two decades and its potential for human-to-human transmission. In 2022, a multi-country outbreak of mpox disease was declared by the World Health Organization (WHO) and nearly 100 000 mpox cases have been reported since the beginning of this pandemic. The clade II variant of the virus appears to be responsible for the vast majority of these infections.

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  • Glioblastoma (GBM) is an aggressive brain tumor that often infiltrates beyond its visible boundaries, making treatment challenging with standard surgical and chemoradiotherapy approaches.
  • A new method was developed that combines expert insights and data augmentation to improve predictions of tumor infiltration using preoperative magnetic resonance imaging (mpMRI) scans from 229 patients.
  • The model was validated through cross-institutional tests, showing varying effectiveness in predicting tumor recurrence, with odds ratios indicating strong potential for guiding targeted treatment strategies.
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Pleomorphic xanthoastrocytoma (PXA) is a rare pediatric low-grade glioma (pLGG), of which 60%-80% exhibit the BRAF V600E mutation, that enhances the aggressiveness and progression to an eventual pediatric high-grade glioma (pHGG). Despite the aggressiveness of this mutational status, the mechanisms underlying the progression of BRAF V600E tumors remain poorly understood, primarily due to limited insights into their growth dynamics. In this issue, Rajappa and colleagues leverage a novel immunocompetent RCAS-BRAF V600E murine glioma model to profile the immunological dynamics taking place in BRAF V600E pLGG.

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  • Treatment for meningiomas primarily involves surgery and sometimes radiation, but patient responses can vary significantly.
  • Researchers analyzed data from 2,824 meningiomas, including both retrospective and prospective information, to identify molecular biomarkers that predict treatment response.
  • The study found that complete tumor removal and proper treatment of the dural margin significantly improve survival rates, and developed a new molecular model that better predicts how patients will respond to radiotherapy compared to traditional classification methods.
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  • A phase 2b trial evaluated the effectiveness of ritlecitinib, a JAK3/TEC kinase inhibitor, in treating patients with active non-segmental vitiligo, comparing different dosages against a placebo over 24 weeks.
  • Active vitiligo lesions showed higher levels of inflammatory markers compared to stable lesions, and patients with more active lesions had elevated serum levels of specific biomarkers.
  • After 24 weeks, the 50 mg dose of ritlecitinib significantly reduced depigmentation and increased repigmentation in stable lesions, while also influencing immune response markers in both active and stable lesions.
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A recent experiment probed how purposeful action emerges in early life by manipulating infants' functional connection to an object in the environment (i.e., tethering an infant's foot to a colorful mobile).

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Chronic kidney disease (CKD) is associated with renal lipid dysmetabolism among a variety of other pathways. We recently demonstrated that oxysterol-binding protein-like 7 (OSBPL7) modulates the expression and function of ATP-binding cassette subfamily A member 1 (ABCA1) in podocytes, a specialized type of cell essential for kidney filtration. Drugs that target OSBPL7 lead to improved renal outcomes in several experimental models of CKD.

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  • This study assessed the safety of using immune checkpoint inhibitors (ICIs) — specifically anti-CTLA-4 and anti-PD-1 — for treating newly diagnosed glioblastoma (GBM) patients after standard treatment, aiming to explore combined therapies.
  • A total of 32 patients participated, showing that the treatments were generally well tolerated, with low rates of severe toxicity and no deaths related to the treatments; specifically, the combination treatment did not show increased toxicity compared to single-agent therapies.
  • The findings indicate that the combination of Ipilimumab and Nivolumab could provide promising results for overall and progression-free survival in patients with GBM, supporting further trials to evaluate their efficacy in this setting.
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Small cell lung cancer (SCLC) has a propensity for brain metastases, which is associated with poor prognosis. We sought to determine predictors of overall survival (OS) and brain progression-free survival (bPFS) in SCLC patients with synchronous brain metastases at the time of initial SCLC diagnosis. A total of 107 SCLC patients with synchronous brain metastases treated at a single institution were included in this retrospective analysis.

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Background: The objective of this study was to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of PF‑06835375, a potent selective afucosyl immunoglobulin G1 antibody targeting C-X-C chemokine receptor type 5 (CXCR5) that potentially depletes B cells, follicular T helper (Tfh) cells, and circulating Tfh-like (cTfh) cells, in patients with systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA).

Methods: This first-in-human, multicenter, double-blind, sponsor-open, placebo-controlled Phase 1 study recruited patients aged 18-70 years with SLE or RA. In Part A, patients received single doses of intravenous PF-06835375 (dose range: 0.

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Purpose: Patients with glioblastoma (GBM) have a dismal prognosis. Although the DNA alkylating agent temozolomide (TMZ) is the mainstay of chemotherapy, therapeutic resistance rapidly develops in patients. Base excision repair inhibitor TRC102 (methoxyamine) reverses TMZ resistance in preclinical glioma models.

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