2,918 results match your criteria: "J.O.; and Icahn School of Medicine at Mount Sinai H.C.[Affiliation]"

Perivascular spaces, plasma GFAP, and speeded executive function in neurodegenerative diseases.

Alzheimers Dement

August 2024

Dr. Sandra Black Centre for Brain Resilience and Recovery, LC Campbell Cognitive Neurology, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.

Introduction: We investigated the effect of perivascular spaces (PVS) volume on speeded executive function (sEF), as mediated by white matter hyperintensities (WMH) volume and plasma glial fibrillary acidic protein (GFAP) in neurodegenerative diseases.

Methods: A mediation analysis was performed to assess the relationship between neuroimaging markers and plasma biomarkers on sEF in 333 participants clinically diagnosed with Alzheimer's disease/mild cognitive impairment, frontotemporal dementia, or cerebrovascular disease from the Ontario Neurodegenerative Disease Research Initiative.

Results: PVS was significantly associated with sEF (c = -0.

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Multisite Validation of a Functional Assay to Adjudicate Brugada Syndrome-Associated Variants.

Circ Genom Precis Med

August 2024

Vanderbilt Center for Arrhythmia Research and Therapeutics (Van-CART), Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (J.F.S., G.D., M.B.S., D.M.R., A.M.G.).

Background: Brugada syndrome is an inheritable arrhythmia condition that is associated with rare, loss-of-function variants in . Interpreting the pathogenicity of missense variants is challenging, and ≈79% of missense variants in ClinVar are currently classified as variants of uncertain significance. Automated patch clamp technology enables high-throughput functional studies of ion channel variants and can provide evidence for variant reclassification.

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Delayed Cerebral Infarction After Aneurysmal Subarachnoid Hemorrhage: Location, Distribution Patterns, Infarct Load, and Effect on Outcome.

Neurology

August 2024

From the Department of Neurosurgery (M.V., L.V.V., C.C., T.P.S., A.H., H.C.), RWTH Aachen University Hospital, Germany; Department of Neurosurgery (T.R.), Neuromed Campus, Kepler University Hospital, Linz, Austria; Department of Neurosurgery (R.H.), Maastricht University, Maastricht University Medical Center+, the Netherlands; Department of Neurosurgery (M. Weiss), Kantonsspital Aarau, Switzerland; Department of Neurosurgery (J.O.S., M.K., J.S., M.N., R.R.), University of Helsinki and Helsinki University Hospital; Division of Anesthesiology (J.J.V., T.L.), Department of Anesthesiology, Intensive Care and Pain Medicine, Helsinki University Hospital, University of Helsinki, Finland; and Department of Neuroradiology (M. Wiesmann), RWTH Aachen University Hospital, Germany.

Background And Objectives: Delayed cerebral ischemia (DCI) is one of the main contributing factors to poor clinical outcome after aneurysmal subarachnoid hemorrhage (SAH). Unsuccessful treatment can cause irreversible brain injury in the form of DCI-related infarction. We aimed to assess the association between the location, distribution, and size of DCI-related infarction in relation to clinical outcome.

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Article Synopsis
  • Mesenchymal stem cells (MSCs) have potential in medical therapies due to their ability to modulate immune responses, and this study focused on their use in treating atopic dermatitis (AD).
  • A phase 1 trial confirmed the safety of allogenic human bone marrow-derived clonal MSCs (hcMSCs) in patients, leading to a phase 2 trial that showed hcMSC treatment resulted in improved eczema severity after 12 weeks compared to a placebo.
  • Despite some mild adverse effects, hcMSC therapy had an acceptable safety profile, suggesting it could be effective, though further extensive research is needed to validate these initial findings.
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Gene editing technologies hold promise for enabling the next generation of adoptive cellular therapies. In conventional gene editing platforms that rely on nuclease activity, such as clustered regularly interspaced short palindromic repeats CRISPR-associated protein 9 (CRISPR-Cas9), allow efficient introduction of genetic modifications; however, these modifications occur via the generation of DNA double-strand breaks (DSBs) and can lead to unwanted genomic alterations and genotoxicity. Here, we apply a novel modular RNA aptamer-mediated Pin-point base editing platform to simultaneously introduce multiple gene knockouts and site-specific integration of a transgene in human primary T cells.

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Emicizumab versus immunosuppressive therapy for the management of acquired hemophilia A.

J Thromb Haemost

October 2024

Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany. Electronic address:

Background: Acquired hemophilia A (AHA) is an autoimmune bleeding disorder caused by neutralizing antibodies against coagulation factor VIII. Immunosuppressive therapy (IST) is standard of care to eradicate autoantibody production and protect from further bleeding but carries a risk of severe infection and mortality in frail patients with AHA. Recently, emicizumab has been studied for its potential to reduce the need for early and aggressive IST.

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Purpose: To assess the ability of ChatGPT-4, an automated Chatbot powered by artificial intelligence, to answer common patient questions concerning the Latarjet procedure for patients with anterior shoulder instability and compare this performance with Google Search Engine.

Methods: Using previously validated methods, a Google search was first performed using the query "Latarjet." Subsequently, the top 10 frequently asked questions (FAQs) and associated sources were extracted.

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Glycolytic PFKFB3 and Glycogenic UGP2 Axis Regulates Perfusion Recovery in Experimental Hind Limb Ischemia.

Arterioscler Thromb Vasc Biol

August 2024

Vascular Biology Center and Department of Medicine (J.O., S.K., G.Z., S.B., V.C.G.), Augusta University, GA.

Background: Despite being in an oxygen-rich environment, endothelial cells (ECs) use anaerobic glycolysis (Warburg effect) as the primary metabolic pathway for cellular energy needs. PFKFB (6-phosphofructo-2-kinase/fructose-2,6-biphosphatase)-3 regulates a critical enzymatic checkpoint in glycolysis and has been shown to induce angiogenesis. This study builds on our efforts to determine the metabolic regulation of ischemic angiogenesis and perfusion recovery in the ischemic muscle.

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Article Synopsis
  • * Dysregulation of this system can lead to retinal diseases such as geographic atrophy and diabetic retinopathy, creating interest in targeting the complement system for treatment.
  • * Current research includes various studies on the pathophysiology of complement dysfunction, and some complement inhibitors have already been FDA-approved for treating geographic atrophy, indicating potential for new therapies.
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Epstein-Barr virus (EBV) is associated with several malignancies, neurodegenerative disorders and is the causative agent of infectious mononucleosis. A vaccine that prevents EBV-driven morbidity and mortality remains an unmet need. EBV is orally transmitted, infecting both B cells and epithelial cells.

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Low-Field (64 mT) Portable MRI for Rapid Point-of-Care Diagnosis of Dissemination in Space in Patients Presenting with Optic Neuritis.

AJNR Am J Neuroradiol

November 2024

From the Division of Neuroradiology, Department of Medical Imaging (T.R.L., S.S., A.W.L., Y.A.C., S.M. A.B.), St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada

Article Synopsis
  • This study investigates the effectiveness of portable MRI (pMRI) in diagnosing multiple sclerosis (MS) in patients with optic neuritis, comparing it to conventional MRI (cMRI) in terms of lesion detection and time to imaging.
  • Twenty patients were assessed, with results showing that while pMRI detected fewer lesions, it provided faster imaging results than cMRI, significantly reducing the wait time from symptom onset.
  • The findings indicate that pMRI has good diagnostic potential, particularly in terms of speed, but shows moderate sensitivity for identifying dissemination in space (DIS) according to established criteria.
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Chronic kidney disease (CKD) impacts 14% of adults in the United States, and African American (AA) individuals are disproportionately affected, with more than 3 times higher risk of kidney failure as compared to White individuals. This study evaluated the effects of base-producing fruit and vegetables (FVs) on cardiorenal outcomes in AA persons with CKD and hypertension (HTN) in a low socioeconomic area. The "Cardiorenal Protective Diet" prospective randomized trial evaluated the effects of a 6-week, community-based FV intervention compared to a waitlist control (WL) in 91 AA adults (age = 58.

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Changes in the left atrium and heart failure: chicken or egg?

Eur Heart J Cardiovasc Imaging

October 2024

Department of Cardiology, Cardiovascular Non-Invasive Imaging Research Laboratory, Copenhagen University Hospital-Herlev and Gentofte, Gentofte Hospitalsvej 8, 2900 Hellerup, Denmark.

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Antibodies Against ZSCAN1 in Pediatric and Adult Patients With Non-Paraneoplastic ROHHAD Syndrome.

Neurol Neuroimmunol Neuroinflamm

September 2024

From the Neuroimmunology Program (A.B.S., G.O.-C., J.O.D., F.G., T.A., L.S.), Fundació de recerca clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (FCRB-IDIBAPS), Caixa Research Intitute (CRI), Universitat de Barcelona; Pediatric Neurology Section (G.O.-C.), Hospital Parc Taulí, Sabadell, Barcelona; Department of Pulmonology (Á.O.-G.), Hospital General Universitario Nuestra Señora del Prado, Talavera de la Reina, Spain; Neuroimmunology Program Barrow Neurological Institute (M.C.K.), Phoenix Children's Hospital, Phoenix, AZ; Departments of Child Health, Cellular and Molecular Medicine, Genetics, and Neurology, University of Arizona College of Medicine-Phoenix; Division of Autonomic Medicine (D.W.-M., C.M.R.), Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA; Department of Pediatrics (D.W.-M.), Northwestern University Feinberg School of Medicine; Stanley Manne Children's Research Institute (D.W.-M., C.M.R.), Chicago, IL; Pediatric Neurology Department (C.F., T.A.), Institut de Recerca Sant Joan de Déu, Sant Joan de Déu Children's Hospital, Barcelona; Department of Pediatric Neurology (J.A.F.-R.), Reina Sofia University Hospital, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, CIBERER-ISCIII, Spain; Paediatric Endocrinology Section (M.C.), Hospital Materno-Infantil Vall d'Hebron, Universitat Autònoma, Barcelona, Spain; Division of Neurology (M.M.S.), Hospital das Clínicas (HCFMUSP), Faculdade de Medicina, Universidade de São Paulo; Department of Neurology (E.K.E.), University of State of Bahia, Salvador, Brazil; Servicio de Neuropediatria (S.I.-M.), servicio de Pediatria, Hospital Virgen de la Arrixaca, Murcia, España; Centro de Investigación Biomédica en Red (J.O.D., L.S.), Enfermedades Raras (CIBERER-ISCIII), Madrid, Spain; Department of Neurology (J.O.D.), Perelman School of Medicine, University of Pennsylvania, Philadelphia; Catalan Institution for Research and Advanced Studies; and Hospital Clínic de Barcelona (T.A.), Barcelona, Spain.

Objectives: To report the association of zinc finger and SCAN domain containing 1 antibodies (ZSCAN1-abs) with rapid-onset obesity, hypothalamic dysfunction, hypoventilation, and autonomic dysregulation (ROHHAD) syndrome in patients without tumor.

Methods: Patients with symptoms compatible with ROHHAD syndrome but without an associated tumor were selected from our database. Serum and CSF samples were examined for the presence of ZSCAN1-abs by an in-house cell-based assay.

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Background: The hospital's physical environment can impact health and well-being. Patients spend most of their time in their hospital rooms. However, little experimental evidence supports specific physical design variables in these rooms, particularly for people poststroke.

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Six novel red photoluminescent Eu complexes with 3-formyl chromone as the primary sensitizer (L) were synthesized using the solution precipitation method. These complexes are [Eu(L).X] where X is 2HO (C1), phen (C2), neo (C3), bipy (C4), dmph (C5), and biquno (C6).

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Brigatinib in -Related Schwannomatosis with Progressive Tumors.

N Engl J Med

June 2024

From Massachusetts General Hospital and Harvard Medical School (S.R.P., V.L.M.) and the Dana-Farber Cancer Institute (G.F., L.T.) - all in Boston; the NYU Grossman School of Medicine (K.H.Y.) and the Children's Tumor Foundation (A.B.) - both in New York; the University of California, Los Angeles, Los Angeles (P.L.N.); the University of Miami Miller School of Medicine, Sylvester Comprehensive Cancer Center, Miami (C.T.D.); the Mayo Clinic, Rochester, MN (D.B.-V.); and Johns Hopkins University, Baltimore (J.O.B.).

Article Synopsis
  • Background: -related schwannomatosis (formerly neurofibromatosis type 2) is a progressive tumor syndrome characterized by various tumors including vestibular and nonvestibular schwannomas, meningiomas, and ependymomas, with no approved treatments available.
  • Methods: A phase 2 trial was conducted involving patients aged 12 and older with -SWN, treating them daily with 180 mg of oral brigatinib, and evaluating tumor response and safety through a central review committee.
  • Results: Out of 40 patients, radiographic response rates were 10% for target tumors and 23% for all tumors, with improvements notably in meningiomas
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Socio-economic disparities were associated with disproportionate viral incidence between neighborhoods of New York City (NYC) during the first wave of SARS-CoV-2. We investigated how these disparities affected the co-circulation of SARS-CoV-2 variants during the second wave in NYC. We tested for correlation between the prevalence, in late 2020/early 2021, of Alpha, Iota, Iota with E484K mutation (Iota-E484K), and B.

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Objectives: To assess feasibility, safety, and early efficacy of robotic-enhanced epicardial ablation (RE-EA) as first stage of a hybrid approach to patients with persistent (PsAF) and long-standing atrial fibrillation (LSAF).

Methods: Single-center, retrospective analysis of patients with documented PsAF and LSAF who underwent RE-EA followed by catheter-guided endocardial ablation. Postoperatively, patients were monitored for major adverse events and underwent rhythm follow-up at 3 and 12 months.

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The tyrosine kinase domain of the FMS-Like tyrosine kinase 3 (-TKD) is recurrently mutated in acute myeloid leukemia (AML). Common molecular techniques used in its detection include PCR and capillary electrophoresis, Sanger sequencing and next-generation sequencing with recognized sensitivity limitations. This study aims to validate the use of droplet digital PCR (ddPCR) in the detection of measurable residual disease (MRD) involving the common -TKD mutations (D835Y, D835H, D835V, D835E).

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The pathogenesis of allograft (dys)function has been increasingly studied using 'omics'-based technologies, but the focus on individual organs has created knowledge gaps that neither unify nor distinguish pathological mechanisms across allografts. Here we present a comprehensive study of human pan-organ allograft dysfunction, analyzing 150 datasets with more than 12,000 samples across four commonly transplanted solid organs (heart, lung, liver and kidney, n = 1,160, 1,241, 1,216 and 8,853 samples, respectively) that we leveraged to explore transcriptomic differences among allograft dysfunction (delayed graft function, acute rejection and fibrosis), tolerance and stable graft function. We identified genes that correlated robustly with allograft dysfunction across heart, lung, liver and kidney transplantation.

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Entorhinal vessel density correlates with phosphorylated tau and TDP-43 pathology.

Alzheimers Dement

July 2024

Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

Introduction: The entorhinal cortex (EC) and perirhinal cortex (PC) are vulnerable to Alzheimer's disease. A triggering factor may be the interaction of vascular dysfunction and tau pathology.

Methods: We imaged post mortem human tissue at 100 μm with 7 T magnetic resonance imaging and manually labeled individual blood vessels (mean = 270 slices/case).

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Microsatellite stable metastatic colorectal cancer (MSS mCRC; mismatch repair proficient) has previously responded poorly to immune checkpoint blockade. Botensilimab (BOT) is an Fc-enhanced multifunctional anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) antibody designed to expand therapy to cold/poorly immunogenic solid tumors, such as MSS mCRC. BOT with or without balstilimab (BAL; anti-PD-1 antibody) is being evaluated in an ongoing expanded phase 1 study.

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The global transition towards sustainable energy sources necessitates a delicate balance between incentivizing domestic mineral inputs and ensuring affordable energy transition. This paper investigates a diverse set of policies aimed at promoting domestic mining and their implications for achieving an affordable energy transition. Through a comprehensive economic framework, we analyze the effects of demand and supply-side policies on import reliance, production costs, and the overall progress of the energy transition.

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Incidence and Types of Cardiac Arrhythmias in the Peri-Ictal Period in Patients Having a Generalized Convulsive Seizure.

Neurology

July 2024

From the Departament de Medicina (L.V.), Universitat Autònoma de Barcelona, Spain; NINDS Center for SUDEP Research (CSR) (L.V., G.C., J.P.H., S.J.O., M.O.-U., B.T., O.M., N.J.H., J.S.H., M.R.S.R., N.L., S.T., R.K.S., D.F., M.N., C.A.S., B.G., S.U.S., R.M.H., B.D., L.M.B., O.D., G.B.R., G.-Q.Z., S.D.L.), McGovern Medical School, University of Texas Health Science Center at Houston; Department of Neurology (L.V.), Hospital del Mar, Barcelona, Spain; Division of Cardiology (C.Y.M.), Department of Pediatrics, Texas Children's Hospital, and Department of Molecular Physiology and Biophysics (C.Y.M.), Baylor College of Medicine, Houston, TX; Department of Neurology (G.C., J.P.H., S.J.O., M.O.-U., B.T., O.M., N.J.H., J.S.H., M.R.S.R., N.L., S.T., G.-Q.Z., S.D.L.), McGovern Medical School, University of Texas Health Science Center at Houston; University of Iowa Carver College of Medicine (R.K.S., B.G., G.B.R.), Iowa City; NYU Langone School of Medicine (D.F., O.D.), New York; Sidney Kimmel Medical College (M.N.), Thomas Jefferson University, Philadelphia, PA; Institute of Neurology (C.A.S., B.D.), University College London, United Kingdom; Department of Neurology (S.U.S.), Feinberg School of Medicine, Northwestern University, Chicago, IL; Department of Neurobiology and the Brain Research Institute (R.M.H.), and Department of Neurobiology (J.A.O.), University of California, Los Angeles; and Cedars-Sinai Medical Center (L.M.B.), Los Angeles, CA.

Article Synopsis
  • The study aimed to investigate the occurrence of cardiac arrhythmias during generalized convulsive seizures (GCSs) and their potential link to sudden unexpected death in epilepsy (SUDEP).
  • Researchers monitored adult epilepsy patients using video-EEG and various cardiological assessments to identify different types of arrhythmias occurring during seizures.
  • The findings could provide insights into the relationship between seizure severity markers and cardiac arrhythmias, contributing to understanding the risk factors associated with SUDEP.
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