417 results match your criteria: "Cambridge (M.C.) - all in Massachusetts; and the Association of American Medical Colleges[Affiliation]"

Bipolar disorder is a leading contributor to the global burden of disease. Despite high heritability (60-80%), the majority of the underlying genetic determinants remain unknown. We analysed data from participants of European, East Asian, African American and Latino ancestries (n = 158,036 cases with bipolar disorder, 2.

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Introduction: The aim of this study is to use observational methods to evaluate reliability of evidence generated by a study of the effect of glucagon-like peptide 1 receptor agonists (GLP-1RA) on chronic lower respiratory disease (CLRD) outcomes among Type-2 diabetes mellitus (T2DM) patients.

Research Design And Methods: We independently reproduced a study comparing effects of GLP-1RA versus dipeptidyl peptidase-4 inhibitors (DPP4-i) on CLRD outcomes among patients with T2DM and prior CLRD. We reproduced inputs and outputs using the original study data (national administrative claims) and evaluated the robustness of results in comparison to alternate design/analysis decisions.

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Homozygous MTAP deletion occurs in ~15% of cancers, making them vulnerable to decreases in the concentration of S-adenosylmethionine (SAM). AG-270/S095033 is an oral, potent, reversible inhibitor of methionine adenosyltransferase 2 A (MAT2A), the enzyme primarily responsible for the synthesis of SAM. We report results from the first-in-human, phase 1 trial of AG-270/S095033 as monotherapy in patients with advanced malignancies (ClinicalTrials.

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Unlabelled: The Alzheimer's disease (AD) research community continues to make great strides in expanding approaches for early detection and treatment of the disease, including recent advances in our understanding of fundamental AD pathophysiology beyond the classical targets: beta-amyloid and tau. Recent clinical trial readouts implicate a variety of non-amyloid/non-tau (NANT) approaches that show promise in slowing cognitive decline for people with AD. The Alzheimer's Association Research Roundtable (AARR) meeting held on December 13-14, 2022, reviewed the current state of NANT targets on underlying AD pathophysiology and their contribution to cognitive decline, the current data on a diverse range of NANT biomarkers and therapeutic targets, and the integration of NANT concepts in clinical trial designs.

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Co-essentiality analysis identifies PRR12 as a cohesin interacting protein and contributor to genomic integrity.

Dev Cell

December 2024

Whitehead Institute for Biomedical Research, Cambridge, MA, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA. Electronic address:

The cohesin complex is critical for genome organization and regulation, relying on specialized co-factors to mediate its diverse functional activities. Here, by analyzing patterns of similar gene requirements across cell lines, we identify PRR12 as a mediator of cohesin and genome integrity. We show that PRR12 interacts with NIPBL/MAU2 and the cohesin complex, and that the loss of PRR12 results in reduced cohesin localization and a substantial increase in DNA double-strand breaks in mouse NIH-3T3 cells.

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Background: Glioblastoma (GBM) has a median survival of <2 years. Pexidartinib (PLX3397) is a small-molecule inhibitor of CSF1R, KIT, and oncogenic FTL3, which are implicated in GBM treatment resistance. Results from glioma models indicate that combining radiation therapy (RT) and pexidartinib reduces radiation resistance.

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Venous Endothelial Cell Transcriptomic Profiling Implicates METAP1 in Preeclampsia.

Circ Res

January 2025

Cardiovascular Research Center (C.C., P.X., Z.Y., Y.S., E.S.L., J.D.R., M.C.H.), Massachusetts General Hospital, Boston, MA.

Background: Preeclampsia is a hypertensive disorder of pregnancy characterized by systemic endothelial dysfunction. The pathophysiology of preeclampsia remains incompletely understood. This study used human venous endothelial cell (EC) transcriptional profiling to investigate potential novel mechanisms underlying EC dysfunction in preeclampsia.

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Dysregulated epigenetic programs that restrict differentiation, reactivate fetal genes, and confer phenotypic plasticity are critical to colorectal cancer (CRC) development. By screening a small molecule library targeting epigenetic regulators using our dual reporter system, we found that inhibiting histone deacetylase (HDAC) 1/2 promotes CRC differentiation and anti-tumor activity. Comprehensive biochemical, chemical, and genetic experiments revealed that on-target blockade of the HDAC1/2 catalytic domain mediated the differentiated phenotype.

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Understanding the rapidly evolving landscape of single-cell and spatial omic technologies is crucial for advancing biomedical research and drug development. We provide a living review of both mature and emerging commercial platforms, highlighting key methodologies and trends shaping the field. This review spans from foundational single-cell technologies such as microfluidics and plate-based methods to newer approaches like combinatorial indexing; on the spatial side, we consider next-generation sequencing and imaging-based spatial transcriptomics.

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Neuroinflammation in Alzheimer disease.

Nat Rev Immunol

December 2024

Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette/Belvaux, Luxembourg.

Article Synopsis
  • Research highlights the significant role of immune processes in the development of Alzheimer's disease, which is the leading cause of dementia.
  • Various studies indicate that both innate and adaptive immune responses contribute to the disease's pathology and are influenced by genetics and lifestyle factors.
  • New therapeutic approaches targeting neuroinflammation are being explored in clinical settings, offering potential treatment options for Alzheimer's patients.
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Background: Accounting for race and ethnicity in estimating disease risk may improve the accuracy of predictions but may also encourage a racialized view of medicine.

Objective: To present a decision analytic framework for considering the potential benefits of race-aware over race-unaware risk predictions, using cardiovascular disease, breast cancer, and lung cancer as case studies.

Design: Cross-sectional study.

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Background: Limited licensed medications are available for multiple sclerosis (MS) in pediatric patients.

Objective: To evaluate the efficacy, safety, and tolerability of alemtuzumab in pediatric patients with relapsing-remitting multiple sclerosis (RRMS) and disease activity on prior disease-modifying therapies (DMTs).

Methods: LemKids was a multicenter, multinational, single-arm, open-label, switch (from ongoing DMT to alemtuzumab treatment) study in pediatric RRMS patients (aged 10-<18 years), with disease activity on DMT.

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Polygenic Prediction of Recurrent Events After Early-Onset Myocardial Infarction.

Circ Genom Precis Med

December 2024

British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care (M.A.,S.A.L., L.G.K., M.K., M.I., E.D.A., A.S.B.).

Background: Myocardial infarction (MI) is a complex disease caused by both lifestyle and genetic factors. This study aims to investigate the predictive value of genetic risk, in addition to traditional cardiovascular risk factors, for recurrent events following early-onset MI.

Methods: The Italian Genetic Study of Early-Onset Myocardial Infarction is a cohort study enrolling patients with MI before 45 years.

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Cardiac diseases represent common highly morbid conditions for which molecular mechanisms remain incompletely understood. Here we report the analysis of 1,459 protein measurements in 44,313 UK Biobank participants to characterize the circulating proteome associated with incident coronary artery disease, heart failure, atrial fibrillation and aortic stenosis. Multivariable-adjusted Cox regression identified 820 protein-disease associations-including 441 proteins-at Bonferroni-adjusted P < 8.

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Targeting the aminopeptidase ERAP enhances antitumor immunity by disrupting the NKG2A-HLA-E inhibitory checkpoint.

Immunity

December 2024

Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA; Center for Cancer Research, Massachusetts General Hospital, Boston, MA, USA; Department of Medicine, Massachusetts General Hospital, Boston, MA, USA. Electronic address:

The aminopeptidase, endoplasmic reticulum aminopeptidase 1 (ERAP1), trims peptides for loading into major histocompatibility complex class I (MHC class I), and loss of this activity has broad effects on the MHC class I peptidome. Here, we investigated the impact of targeting ERAP1 in immune checkpoint blockade (ICB), as MHC class I interactions mediate both activating and inhibitory functions in antitumor immunity. Loss of ERAP sensitized mouse tumor models to ICB, and this sensitivity depended on CD8 T cells and natural killer (NK) cells.

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Article Synopsis
  • Medical record review by physician committees is the current standard for identifying cardiovascular outcomes in clinical trials, but it's time-consuming and inconsistent.
  • A new AI model called "HF-NLP" was developed to automatically assess heart failure outcomes, tested on data from international trials, including the DELIVER trial.
  • The AI achieved 83% agreement with expert committee decisions, and when supplemented with human reviews for uncertain cases, it could reach 91% agreement while significantly reducing workload.
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Cancer metastasis is a major contributor to patient morbidity and mortality, yet the factors that determine the organs where cancers can metastasize are incompletely understood. In this study, we quantify the absolute levels of over 100 nutrients available across multiple tissues in mice and investigate how this relates to the ability of breast cancer cells to grow in different organs. We engineered breast cancer cells with broad metastatic potential to be auxotrophic for specific nutrients and assessed their ability to colonize different organs.

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Unlabelled: Cyanobacteria are photosynthetic organisms that play important roles in carbon cycling and are promising bioproduction chassis. Here, we isolate two novel cyanobacteria with 4.6Mbp genomes, UTEX 3221 and UTEX 3222, from a unique marine environment with naturally elevated CO₂.

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Article Synopsis
  • Low drug adherence significantly hampers the effectiveness of prescribed medications, making it crucial to understand the factors that lead to poor adherence and discontinuation of treatments.
  • Analysis of data from over 1.8 million individuals reveals that socio-demographic factors, such as needing social assistance and immigration status, negatively impact medication adherence and persistence, while demographic and health factors show less consistent effects.
  • Genetic factors show limited association with adherence, with some pharmacogenes linked to persistence; the study suggests that interventions targeting socio-economically disadvantaged populations could enhance medication uptake and overall health outcomes.
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Neurodevelopmental Disorder Caused by Deletion of , a lncRNA Gene.

N Engl J Med

October 2024

From the Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge (V.S.G., M.C.O., J.K.G., K.V.G., E.E., B.W., F.A., D.G.M., A.O.-L.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), the Division of Genetics and Genomics, Boston Children's Hospital (V.S.G., A.O.-L.), and Harvard Medical School (V.S.G., A.O.-L.), Boston - all in Massachusetts; L'institut du Thorax (K.R., B.I., S.B., B.C.), Service de Radiopediatrie (A.P.), and Service de Génétique Médicale (B.I., S.B., B.C.), Nantes Université, Centre Hospitalier Universitaire (CHU) de Nantes, Centre National de la Recherche Scientifique (CNRS), INSERM, Nantes, and Institut Neuromyogène, Laboratoire Physiopathologie et Génétique du Neurone et du Muscle, CNRS, INSERM (N.C., D.S.), and Service de Génétique, Hospices Civils de Lyon (N.C., P.M., D.S.), Lyon - all in France; the Departments of Neurology (E.Y., K.-M.L., M.C.A., G.L.C.) and Pharmacology (G.L.C.), Northwestern University Feinberg School of Medicine, Chicago; the Undiagnosed Diseases Network and the Department of Molecular and Human Genetics, Baylor College of Medicine, Houston (C.A.B., D.R.M., H.D., J.A.R., L.T.E., S. Ketkar), and the Department of Pediatrics, University of Texas Southwestern Medical Center (S. Kayani), and Coalition to Cure CHD2 (B.B.), Dallas; the Departments of Immunology and Regenerative Biology and Molecular Neuroscience, Weizmann Institute of Science, Rehovot, Israel (Y.S., I.U.); and the Centre for Population Genomics, Garvan Institute of Medical Research and University of New South Wales Sydney, Sydney (D.G.M.), and the Centre for Population Genomics, Murdoch Children's Research Institute, Melbourne, VIC (D.G.M.) - both in Australia.

encodes a human long noncoding RNA (lncRNA) adjacent to , a coding gene in which de novo loss-of-function variants cause developmental and epileptic encephalopathy. Here, we report our findings in three unrelated children with a syndromic, early-onset neurodevelopmental disorder, each of whom had a de novo deletion in the locus. The children had severe encephalopathy, shared facial dysmorphisms, cortical atrophy, and cerebral hypomyelination - a phenotype that is distinct from the phenotypes of patients with haploinsufficiency.

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Introduction: Despite the progress in gene editing platforms like CRISPR/Cas9 with the potential to transform the standard of care for haemophilia, the language used to explain and discuss gene editing is not aligned across the haemophilia community. Here, we present the objective and rationale for developing a clear, consistent, and globally aligned gene editing lexicon to address these communication gaps.

Methods: Effectively communicating complex gene editing concepts requires a clear and consistent vocabulary.

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The emergence of the United States Food and Drug Administration (FDA)-approved amyloid-targeting therapies for Alzheimer's disease challenges clinicians and healthcare providers with a transformative landscape. Effectively communicating the risks, benefits, burdens, costs, and available support associated with these novel disease-modifying treatments to patients, families, and other healthcare providers is essential but complex. In response, the Alzheimer's Association's Clinical Meaningfulness Workgroup has proposed language surrounding treatment eligibility, benefits, amyloid-related imaging abnormalities (ARIA), apolipoprotein E (APOE) genotyping, and treatment costs, serving as a resource to healthcare professionals in navigating discussions with patients and their families.

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Article Synopsis
  • The rise of personalized medicine has highlighted the importance of comprehensive genomic profiling (CGP), but challenges in assay standardization and understanding bioinformatics hinder uniform implementation.
  • Two in-house CGP assays were compared in a research context, revealing both agreements and significant differences in detecting genetic variants and providing clinical recommendations.
  • These discrepancies were attributed to varied bioinformatics methods for variant analysis, emphasizing the need for careful consideration in implementing high-quality CGP to ensure consistent and reliable genomic insights.
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Reproducibility and Repeatability of US Shear-Wave and Transient Elastography in Nonalcoholic Fatty Liver Disease.

Radiology

September 2024

From the Center for Ultrasound Research and Translation, Massachusetts General Hospital, 55 Fruit St, White Bldg, Rm 270, Boston, MA 02114 (T.T.P., A.O., X.W., Q.L., D.H., M.M., H.E., A.E.S.); Harvard Medical School, Boston, Mass (T.T.P., A.O., Q.L., A.E.S.); Pfizer, Cambridge, Mass (S.P.S.); Department of Radiology, University of Washington, Seattle, Wash (G.M.C.); Department of Ultrasound, Shenzhen University General Hospital, Shenzhen, China (Q.L.); Department of Radiology, Liver Imaging Group, University of California San Diego, La Jolla, Calif (M.S.M., Y.C., C.B.S., K.J.F.); MGH Fatty Liver Program, Gastrointestinal Unit, Massachusetts General Hospital, Boston, Mass (K.E.C.); BioAge Labs, Richmond, Calif (S.S.S.); Foundation for the National Institutes of Health, North Bethesda, Md (H.H., T.N.K.); Regeneron Pharmaceuticals, Tarrytown, NY (R.A.C.); Department of Medicine, Division of Gastroenterology, NAFLD Research Center, University of California at San Diego, La Jolla, Calif (R.L.); Quantitative Health Sciences, Cleveland Clinic Foundation, Cleveland, Ohio (N.A.O.); and Department of Internal Medicine, Division of Internal Medicine, Division of Gastroenterology, Virginia Commonwealth University Medical Center, Richmond, Va (A.J.S.).

Background US shear-wave elastography (SWE) and vibration-controlled transient elastography (VCTE) enable assessment of liver stiffness, an indicator of fibrosis severity. However, limited reproducibility data restrict their use in clinical trials. Purpose To estimate SWE and VCTE measurement variability in nonalcoholic fatty liver disease (NAFLD) within and across systems to support clinical trial diagnostic enrichment and clinical interpretation of longitudinal liver stiffness.

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Clonal hematopoiesis of indeterminate potential (CHIP) is linked to diverse aging-related diseases, including hematologic malignancy and atherosclerotic cardiovascular disease (ASCVD). While CHIP is common among older adults, the underlying factors driving its development are largely unknown. To address this, we performed whole-exome sequencing on 8,374 blood DNA samples collected from 4,187 Atherosclerosis Risk in Communities Study (ARIC) participants over a median follow-up of 21 years.

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