4,657 results match your criteria: "Beth Israel deaconess Medical Center and Harvard Medical School[Affiliation]"

The angiopoietin (Ang)-Tie axis, critical for endothelial cell function and vascular development, is a promising therapeutic target for treating vascular disorders and inflammatory conditions like sepsis. This study aimed to enhance the binding affinity of recombinant Ang1 variants to the Tie2 and explore their therapeutic potential. Structural insights from the Ang1-Tie2 complex enabled the identification of key residues within the Ang1 receptor binding domain (RBD) critical for Tie2 interaction.

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Recurrence Patterns and Management after Pleurectomy Decortication for Pleural Mesothelioma.

Ann Surg

January 2025

The Thoracic Surgery Oncology laboratory and the International Mesothelioma Program (www.impmeso.org), Division of Thoracic Surgery and the Lung Center, Brigham, and Women's Hospital, and Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.

Objective: We hypothesize that recurrence following pleurectomy decortication (PD) is primarily local. We explored factors associated with tumor recurrence patterns, disease-free interval (DFI), and post-recurrence survival (PRS).

Summary Background Data: Tumor recurrence is a major barrier for long-term survival after pleural mesothelioma (PM) surgery.

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The parabrachial nucleus (PB), located in the dorsolateral pons, contains primarily glutamatergic neurons that regulate responses to a variety of interoceptive and cutaneous sensory signals. One lateral PB subpopulation expresses the Calca gene, which codes for the neuropeptide calcitonin gene-related peptide (CGRP). These PB neurons relay signals related to threatening stimuli such as hypercarbia, pain, and nausea, yet their inputs and their neurochemical identity are only partially understood.

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Background: Use of pulmonary vein isolation (PVI) to treat atrial fibrillation continues to increase. Despite great interest in leveraging administrative data for real-world analyses, contemporary procedural codes for identifying PVI have not been evaluated.

Methods And Results: In this observational retrospective cohort study, inpatient PVIs were identified among US Medicare fee-for-service beneficiaries using Current Procedural Terminology (CPT) code 93656 in Carrier Line Files.

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Objectives: To develop and validate the performance of CT-based radiomics models for predicting the prognosis of acute pancreatitis.

Methods: All 344 patients (51 ± 15 years, 171 men) in a first episode of acute pancreatitis (AP) were retrospectively enrolled and randomly divided into training (n = 206), validation (n = 69), and test (n = 69) sets with the ratio of 6:2:2. The patients were dichotomized into good and poor prognosis subgroups based on follow-up CT and clinical data.

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Cardiovascular MRI-derived Right Atrial Strain for Improved Risk Stratification in Patients with Severe Aortic Stenosis.

Radiol Cardiothorac Imaging

February 2025

From the University Medical Center Göttingen, Department of Cardiology and Pneumology, Georg-August University, Robert-Koch-Strasse 40, 37075 Göttingen, Germany (T.L., B.E.B., A. Schulz, R.E., K.R.R., K.T., G.H., M.P., A. Schuster); German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Göttingen, Germany (T.L., B.E.B., A. Schulz, R.E., K.R.R., K.T., G.H., M.P., A. Schuster); Department of Medicine, Cardiovascular Division, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Mass (A. Schulz); Department of Cardiology, Campus Kerckhoff of the Justus-Liebig-University Giessen, Kerckhoff-Clinic, Bad Nauheim, Germany (S.J.B.); German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Bad Nauheim, Germany (S.J.B.); FORUM Radiology, Rosdorf, Germany (J.T.K.); Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany (G.H.); and FORUM Cardiology, Rosdorf, Germany (A. Schuster).

Purpose To assess the prognostic implications of cardiac MRI-derived imaging markers in individuals with severe aortic stenosis (AS). Materials and Methods This prospective study (German Clinical Trials Register, DRKS00024479) enrolled individuals with severe AS who underwent cardiac MRI before transcatheter aortic valve replacement (TAVR) from January 2017 to March 2022. Image analyses included myocardial volumes, cardiac MRI feature tracking-derived left atrial (LA) and right atrial (RA) as well as left ventricular (LV) and right ventricular (RV) strain, myocardial T1 mapping, and late gadolinium enhancement analyses.

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Importance: The Southern Community Cohort Study (SCCS) Polypill Trial showed that a cardiovascular polypill (a single pill containing a statin and 3 half-standard dose antihypertensive medications) effectively controls cardiovascular disease (CVD) risk factors in a majority Black race and low-income population. The cost-effectiveness of polypill treatment in this population has not been previously studied.

Objective: To determine the cost-effectiveness of the cardiovascular polypill.

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Arrhythmogenic cardiomyopathy (ACM) is a genetic form of heart failure that affects 1 in 5000 people globally and is caused by mutations in cardiac desmosomal proteins including , and . Individuals with ACM suffer from ventricular arrhythmias, sudden cardiac death, and heart failure. There are few effective treatments and heart transplantation remains the best option for many affected individuals.

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Identifying the Brain Circuits that Regulate Pain-Induced Sleep Disturbances.

bioRxiv

December 2024

Department of Neurology, Division of Sleep Medicine, and Program in Neuroscience, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, 02215, USA.

Pain therapies that alleviate both pain and sleep disturbances may be the most effective for pain relief, as both chronic pain and sleep loss render the opioidergic system, targeted by opioids, less sensitive and effective for analgesia. Therefore, we first studied the link between sleep disturbances and the activation of nociceptors in two acute pain models. Activation of nociceptors in both acute inflammatory (AIP) and opto-pain models led to sleep loss, decreased sleep spindle density, and increased sleep fragmentation that lasted 3 to 6 hours.

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Outer mitochondrial membrane (OMM) proteins communicate with the cytosol and other organelles, including the endoplasmic reticulum. This communication is important in thermogenic adipocytes to increase the energy expenditure that controls body temperature and weight. However, the regulatory mechanisms of OMM protein insertion are poorly understood.

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Mechanisms of tandem duplication in the cancer genome.

DNA Repair (Amst)

December 2024

Department of Data Science, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Pathology, Harvard Medical School, Boston, MA 02115,  USA; Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA.

Tandem duplications (TD) are among the most frequent type of structural variant (SV) in the cancer genome. They are characterized by a single breakpoint junction that defines the boundaries and the size of the duplicated segment. Cancer-associated TDs often increase oncogene copy number or disrupt tumor suppressor gene function, and thus have important roles in tumor evolution.

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Background: Anemia is frequently observed as a comorbidity in atrial fibrillation (AF), especially in elderly patients and in those on anticoagulation. This has been associated with poor clinical outcomes. We aim to investigate the impact of anemia on clinical outcomes in patients with AF on oral anticoagulation.

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Diagnostic errors pose a significant public health challenge, affecting nearly 800,000 Americans annually, with even higher rates globally. In the ICU, these errors are particularly prevalent, leading to substantial morbidity and mortality. The clinical reasoning process aims to reduce diagnostic uncertainty and establish a plausible differential diagnosis but is often hindered by cognitive load, patient complexity, and clinician burnout.

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The Bipolar-Schizophrenia Network for Intermediate Phenotypes (B-SNIP) created psychosis Biotypes based on neurobiological measurements in a multi-ancestry sample. These Biotypes cut across DSM diagnoses of schizophrenia, schizoaffective disorder, and bipolar disorder with psychosis. Two recently developed post hoc ancestry adjustment methods of Polygenic Risk Scores (PRSs) generate Ancestry-Adjusted PRSs (AAPRSs), which allow for PRS analysis of multi-ancestry samples.

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With the aging of society, the incidence of chronic kidney disease (CKD), a common cause of death, has been increasing. Transcription factor EB (TFEB), the master transcriptional regulator of the autophagy-lysosomal pathway, is regarded as a promising candidate for preventing various age-related diseases. However, whether TFEB in the proximal tubules plays a significant role in elderly CKD patients remains unknown.

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Background: Guidelines for diabetic ketoacidosis (DKA) management are limited, resulting in varied practices. This study assessed Intensive Care Unit (ICU) admission criteria, fluid resuscitation, insulin therapy, and metabolic management in adult patients with DKA.

Methods: An international survey of ICU clinicians consisted of 39 items that focused on management of DKA and was endorsed by the European Society of the Intensive Care Medicine.

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Article Synopsis
  • Hepatocellular carcinoma (HCC) has a high incidence and mortality rate, with significant differences between its molecular subtypes, necessitating accurate classification for better treatment outcomes.
  • A study identified three distinct HCC subtypes using multi-omics data, with HS1 being the worst in terms of prognosis due to its immune-compromised nature.
  • The research developed a robust machine learning-guided prognostic signature (MLPS) and highlighted SLC2A1 as a key gene linked to tumor progression and treatment response, suggesting its potential for personalized therapies in HCC.
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The Bipolar-Schizophrenia Network for Intermediate Phenotypes (B-SNIP) created psychosis Biotypes based on neurobiological measurements in a multi-ancestry sample. These Biotypes cut across DSM diagnoses of schizophrenia, schizoaffective disorder and bipolar disorder with psychosis. Two recently developed ancestry adjustment methods of Polygenic Risk Scores (PRSs) generate Ancestry-Adjusted PRSs (AAPRSs), which allow for PRS analysis of multi-ancestry samples.

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Background: There is substantial hospital-level variation in 30-day risk-standardized mortality rate (RSMR) and risk-standardized readmission rate (RSRR) after transcatheter aortic valve replacement (TAVR). However, the relationship between hospital RSMRs and RSRRs has not been well characterized.

Methods: We analyzed data on 141,905 Medicare fee-for-service beneficiaries who underwent TAVR across 512 hospitals between October 1, 2015 and December 31, 2020.

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Introduction: Early identification of Autism Spectrum Disorder (ASD) is critical for effective intervention. Restricted interests (RIs), a subset of repetitive behaviors, are a prominent but underutilized domain for early ASD diagnosis. This study aimed to identify objective biomarkers for ASD by integrating electroencephalography (EEG) and eye-tracking (ET) to analyze toddlers' visual attention and cortical responses to RI versus neutral interest (NI) objects.

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Malnutrition is a commonly observed side effect in cancer patients, with a 30-85% worldwide prevalence in this population. Existing malnutrition screening tools miss ~ 20% of at-risk patients at initial screening and do not capture the abnormal body composition phenotype. Meanwhile, the gold-standard clinical criteria to diagnose malnutrition use changes in body composition as key parameters, particularly body fat and skeletal muscle mass loss.

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Aims: Alpha-fetoprotein (AFP)-producing colorectal adenocarcinoma (AFPCRA) is uncommon, with obscure clinicopathological features and prognosis.

Methods And Results: In this retrospective comparison study on surgically resected colorectal adenocarcinomas (CRA, n = 2389), we investigated and compared clinicopathological and prognostic features between AFPCRA cases with elevated pre-operative serum AFP levels, as the AFPCRA study group (n = 49, 2.1%), and the exact sex-, age- and stage-matched CRA cases as the control group at a 1:2 ratio during the study period from 2011 to 2021.

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