345 results match your criteria: "M.-J.W.); andAgricultural Biotechnology Research Center[Affiliation]"

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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Article Synopsis
  • Diamond-Blackfan anemia syndrome (DBAS) is a genetic disorder leading to bone marrow failure due to issues with ribosomal protein genes, mainly RPS19.
  • The researchers created an advanced lentiviral vector called SJEFS-S19 aimed at gene therapy for DBAS, addressing challenges in obtaining patient stem cells.
  • Preclinical tests showed that SJEFS-S19 can correct defects in blood cell production and safely generate a healthy mix of blood cell types in mice, indicating its potential for treating DBAS.
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Vascular anomalies (VA) refer to abnormal blood or lymphatic vessel architecture, most often as a result of dysregulated growth. Venous malformations (VM), a subgroup of VAs, are triggered by activating mutations in the Angiopoietin/TIE2-PI3K/AKT/mTOR signaling pathway with TIE2 L914F (gene name TEK) being one of the most frequent mutations in patients with VMs. Although systemic targeting of the overactivated pathway is possible, it would be a therapeutic advantage to restrict treatment to only the affected lesions.

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The use of adeno-associated viruses (AAVs) as donors for homology-directed repair (HDR)-mediated genome engineering is limited by safety issues, manufacturing constraints and restricted packaging limits. Non-viral targeted genetic knock-ins rely primarily on double-stranded DNA (dsDNA) and linear single-stranded DNA (lssDNA) donors. dsDNA is known to have low efficiency and high cytotoxicity, while lssDNA is challenging for scaled manufacture.

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Tips and tricks in the operative management of esophageal, trachea, and bronchial injuries: What you need to know.

J Trauma Acute Care Surg

November 2024

From the Michael E. DeBakey Department of Surgery (M.J.W., K.L.M.), and Department of Physical Medicine and Rehabilitation (M.J.W.), Baylor College of Medicine, Houston, Texas.

Article Synopsis
  • Tracheal injuries are critical and require immediate attention, often diagnosed using fiberoptic bronchoscopy in the operating room for airway management.
  • Esophageal injuries can be detected through various methods like imaging or endoscopy, with repairs typically done through posterolateral incisions.
  • Repair techniques for both types of injuries depend on their location, utilizing absorbable sutures and often incorporating muscle flap buttressing for support.
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  • Knowledge gaps in understanding human immunity to Streptococcus pyogenes have slowed vaccine development, prompting researchers to establish a human challenge model to study this infection.
  • The study analyzed antibody responses in serum and saliva from participants, revealing that those who developed pharyngitis had strong serum IgG responses to vaccine antigens but weaker mucosal IgA responses.
  • The findings indicate that past exposure to the bacteria affects immune responses, underscoring the need to consider these complexities when evaluating potential vaccines in future trials.
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Single-cell RNA sequencing (scRNAseq) of tumour-infiltrating immune cells in high-grade serous ovarian cancer (HGSOC) omental biopsies reveals potential targets that could enhance response to neo-adjuvant chemotherapy (NACT). Analysis of 64,097 cells identifies NACT-induced overexpression of stabilin-1 (clever-1) on macrophages and FOXP3 in Tregs that is confirmed at the protein level. STAB1 inhibition in vitro induces anti-tumour macrophages.

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A yeast-based oral therapeutic delivers immune checkpoint inhibitors to reduce intestinal tumor burden.

Cell Chem Biol

January 2025

The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Pathology and Immunology, Division of Laboratory and Genomic Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA; Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Pediatrics, Washington University School of Medicine, St. Louis, MO 63110, USA. Electronic address:

Engineered probiotics are an emerging platform for in situ delivery of therapeutics to the gut. Herein, we developed an orally administered, yeast-based therapeutic delivery system to deliver next-generation immune checkpoint inhibitor (ICI) proteins directly to gastrointestinal tumors. We engineered Saccharomyces cerevisiae var.

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Patient Preferences for Features Associated With Leadless Versus Conventional Transvenous Cardiac Pacemakers.

Circ Cardiovasc Qual Outcomes

December 2024

Duke Clinical Research Institute (S.D.R., J.-C.Y., M.J.W., J.S., F.R.J., S.O., S.M.A.-K.), Duke University School of Medicine, Durham, NC.

Article Synopsis
  • A study examined patient preferences for different types of pacemakers, including new dual-chamber leadless options and traditional transvenous ones, to identify which features are most important to them.
  • Surveying 117 patients, researchers found that half preferred leadless pacemakers while the other half favored conventional ones, highlighting a significant division in choices.
  • Key factors influencing patient decisions included preferred pacemaker type, acceptance of complication and infection risks, and the time since regulatory approval, with many willing to accept higher risks for their preferred options.
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Needle-based injections currently enable the administration of a wide range of biomacromolecule therapies across the body, including the gastrointestinal tract, through recent developments in ingestible robotic devices. However, needles generally require training, sharps management and disposal, and pose challenges for autonomous ingestible systems. Here, inspired by the jetting systems of cephalopods, we have developed and evaluated microjet delivery systems that can deliver jets in axial and radial directions into tissue, making them suitable for tubular and globular segments of the gastrointestinal tract.

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Background: Advances in instrumented mouthguards (iMGs) allow for accurate quantification of single high-acceleration head impacts and cumulative head acceleration exposure in collision sports. However, relationships between these measures and risk of brain cell injury remain unclear.

Aim: The purpose of this study was to quantify measures of non-concussive head impact exposure and assess their association with blood glial fibrillary acidic protein (GFAP), neurofilament light (NfL) and phosphorylated-tau-181 (p-tau-181) levels in male Australian football players.

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Dose-dependency of a combined EPA:DHA mixture on incorporation, washout, and protein synthesis in C2C12 myotubes.

Prostaglandins Leukot Essent Fatty Acids

April 2024

University of Stirling, Physiology, Exercise and Nutrition Research Group, Faculty of Health Sciences and Sport, Stirling, United Kingdom.

We demonstrate divergent incorporation and washout patterns for EPA and DHA following high and low-dose EPA+DHA incubation in C2C12 myotubes, with higher concentrations favoring n-3 PUFA incorporation. Lower n-3 PUFA concentrations increased MPS without further upregulating the mTORC1 signaling pathway. Our study provides novel insights into the temporal incorporation and washout dynamics of EPA and DHA and, specifically, their combined effect on MPS, thereby advancing knowledge regarding dietary n-3 PUFA prescription to promote skeletal muscle health in humans.

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Immune-Mediated Inflammatory Diseases, Dyslipidemia, and Cardiovascular Risk: A Complex Interplay.

Arterioscler Thromb Vasc Biol

December 2024

Section on Cardiovascular Medicine, Center for Prevention of Cardiovascular Disease, Wake Forest University School of Medicine, Winston-Salem, NC (M.D.S.).

Article Synopsis
  • * Each type of autoimmune disease impacts lipids differently, influenced by disease activity and medications that suppress the immune system, leading to a harmful lipid state characterized by dysfunctional HDLs and oxidized LDLs.
  • * The review focuses on understanding the link between these inflammatory diseases and unhealthy lipid levels, examines the effects of treatments on cardiovascular risks, and discusses the potential benefits of statins and new therapies for managing these risks in patients.
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The analysis of vascular morphology and functionality enables the assessment of disease activity and therapeutic effects in various pathologies. Raster-scanning optoacoustic mesoscopy (RSOM) is an imaging modality that enables the visualization of superficial vascular networks in vivo. In murine models of colitis, deep vascular networks in the colon wall can be visualized by transrectal absorber guide raster-scanning optoacoustic mesoscopy (TAG-RSOM).

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Impact of serum neurofilament light on clinical decisions in a tertiary multiple sclerosis clinic.

Mult Scler

November 2024

Neurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Neuroscience, Amsterdam, The Netherlands.

Article Synopsis
  • Serum neurofilament light (sNfL) serves as a biomarker for neuro-axonal damage in multiple sclerosis (MS) but its clinical usage is still limited; this study assessed how its implementation affects clinical decisions at the MS Center Amsterdam.
  • Over the study period (August 2021-December 2022), sNfL was evaluated in various contexts, with a notable change in clinical decisions in 19.3% of cases, especially when assessing new symptoms or when higher sNfL levels were present.
  • The findings suggest that integrating sNfL into clinical practice improved decision-making certainty and potentially adjusted expectations regarding MRI activity, indicating its potential value in patient care while calling for further research
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Time-Restricted Eating in Adults With Metabolic Syndrome : A Randomized Controlled Trial.

Ann Intern Med

November 2024

Division of Cardiovascular Medicine, Department of Medicine, University of California, San Diego, La Jolla, California (M.J.W., J.N., D.V., A.R., A.P., P.R.T.).

Background: Time-restricted eating (TRE), limiting daily dietary intake to a consistent 8 to 10 hours without mandating calorie reduction, may provide cardiometabolic benefits.

Objective: To determine the effects of TRE as a lifestyle intervention combined with current standard-of-care treatments on cardiometabolic health in adults with metabolic syndrome.

Design: Randomized controlled trial.

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Purpose: Recently introduced hybrid 2-[18 F]-fluoro-2-deoxy-D-glucose (18 F-FDG) Positron Emission Tomography (PET) combined with Magnetic Resonance Imaging (MRI) may aid in proper diagnosis and staging of perihilar cholangiocarcinoma (pCCA). The aim of this study is to assess the effect of 18 F-FDG PET/MRI on diagnosis and clinical decision making in the pre-operative work up of pCCA.

Methods: In this single-centre pilot study patients with presumed resectable pCCA underwent state-of-the-art 18 F-FDG hybrid PET/MRI using digital silicone photomultiplier detectors integrated within a 3-Tesla bore.

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The Lateral Corticospinal Tract Sign: An MRI Marker for Amyotrophic Lateral Sclerosis.

Radiology

September 2024

From the Translational Imaging in Neurology (ThINk), Department of Biomedical Engineering (M.J.W., E.K., L.S., M. Weigel, C.G., R.S.), Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB) (M.J.W., E.K., L.S., M. Weigel, C.G., R.S.), Department of Biomedical Engineering (M. Weigel, C.W., O.B.), Institute of Forensic Medicine, Department of Biomedical Engineering (D.N., E.S., C.L.), and Department of Biomedicine (M.S.), University of Basel, Basel, Switzerland; Neurology Clinic and Policlinic, Department of Clinical Research (E.K., L.S., M. Weigel, M.D., N.N., C.G., K.S., M.S., R.S.), Division of Radiological Physics, Department of Radiology (M. Weigel, C.W., T.H., P.M., O.B.), Department of Pathology, Institute of Medical Genetics and Pathology (N.D.), and Department of Theragnostics, Clinic of Radiology and Nuclear Medicine, Division of Diagnostic and Interventional Neuroradiology (J.L.), and Department of Neurology (R.S.), University Hospital Basel, University of Basel, Petersgraben 4, 4031 Basel, Switzerland; Institute of Neuropathology, Neurocenter, University Medical Center Freiburg, University of Freiburg, Freiburg, Germany (M.D.); Institute of Forensic Medicine, Health Department Basel-Stadt, Basel, Switzerland (D.N., E.S., C.L.); and Neuromuscular Diseases Unit/ALS Clinic, Kantonsspital St Gallen, St Gallen, Switzerland (C.N., N.B., M. Weber).

Background Radially sampled averaged magnetization inversion-recovery acquisition (rAMIRA) imaging shows hyperintensity in the lateral corticospinal tract (CST) in patients with motor neuron diseases. Purpose To systematically determine the accuracy of the lateral corticospinal tract sign for detecting patients with amyotrophic lateral sclerosis (ALS) at rAMIRA MRI. Materials and Methods This study included prospectively acquired data from participants in ALS and other motor neuron disease imaging studies at the University Hospital Basel, Switzerland.

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Intratumoral injections often lack visibility, leading to unpredictable outcomes such as incomplete tumor coverage, off-target drug delivery and systemic toxicities. This study investigated an ultrasound (US) and x-ray imageable thermosensitive hydrogel based on poloxamer 407 (POL) percutaneously delivered in a healthy swine model. The primary objective was to assess the 2D and 3D distribution of the hydrogel within tissue across three different needle devices and injection sites: liver, kidney, and intercostal muscle region.

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Generating Synthetic Data for Medical Imaging.

Radiology

September 2024

From the Delft University of Technology, Delft, the Netherlands (L.R.K.); Segmed, 3790 El Camino Real #810, Palo Alto, CA 94306 (J.W., A.L., M.C., W.A.K., J.P., M.J.W.); Department of Radiology, University of Washington, Seattle, Wash (D.M.); Department of Radiology, OncoRad/Tumor Imaging Metrics Core, Seattle, Wash (D.M.); Harvard University, Cambridge, Mass (J.P.); Department of Radiology, Stanford University School of Medicine, Palo Alto, Calif (A.S.C.); Department of Biomedical Data Science, Stanford University School of Medicine, Stanford, Calif (A.S.C.); Department of Biomedical Informatics, Harvard Medical School, Boston, Mass (P.R.); Microsoft, Redmond, Wash (M.P.L.); and Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, Calif (M.P.L.).

Article Synopsis
  • AI models for medical imaging need large and diverse datasets, which are hard to obtain due to privacy concerns and data sharing issues.
  • Synthetic medical imaging data, generated by AI, can help address these shortages while allowing for new applications and professional training.
  • However, using synthetic data raises challenges related to realism, evaluation of model performance, high costs, and the need for updated regulations to ensure ethical use, highlighting the importance of collaboration between regulatory bodies, physicians, and AI developers.
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Furthering our knowledge of the skin microbiome is essential to understand health and disease in canines. To date, studies into the canine skin microbiome have focused on 16S rRNA high throughput sequencing however, these lack the granularity of species and strain level taxonomic characterisation and their associated functions. The aim of this study was to provide a comprehensive assessment of the skin microbiome by analysing the skin microbiome of 72 healthy adult colony dogs, across four distinct skin sites and four breeds, using metagenomic sequencing.

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Great interest exists in developing a transgenic trait that controls the economically important soybean () pest, soybean cyst nematode (SCN, ), due to its adaptation to native resistance. Soybean plants expressing the delta-endotoxin, Cry14Ab, were recently demonstrated to control SCN in both growth chamber and field testing. In that communication, ingestion of the Cry14Ab toxin by SCN second stage juveniles (J2s) was demonstrated using fluorescently labeled Cry14Ab in an in vitro assay.

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Sickle cell disease (SCD) is a common, severe genetic blood disorder. Current pharmacotherapies are partially effective and allogeneic hematopoietic stem cell transplantation is associated with immune toxicities. Genome editing of patient hematopoietic stem cells (HSCs) to reactivate fetal hemoglobin (HbF) in erythroid progeny offers an alternative potentially curative approach to treat SCD.

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Structural basis for the inhibition of βFXIIa by garadacimab.

Structure

October 2024

Research and Development, CSL Limited, Bio21 Molecular Science and Biotechnology Institute, Parkville, Victoria, Australia. Electronic address:

Activated FXII (FXIIa) is the principal initiator of the plasma contact system and can activate both procoagulant and proinflammatory pathways. Its activity is important in the pathophysiology of hereditary angioedema (HAE). Here, we describe a high-resolution cryoelectron microscopy (cryo-EM) structure of the beta-chain from FXIIa (βFXIIa) complexed with the Fab fragment of garadacimab.

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Blinatumomab for MRD-Negative Acute Lymphoblastic Leukemia in Adults.

N Engl J Med

July 2024

From the Mayo Clinic, Rochester, MN (M.R.L., C.L.W., M.A.E.); Dana-Farber Cancer Institute, Boston (Z.S., D.J.D., R.M.S.); the University of Wisconsin Carbone Cancer Center, Madison (R.J.M.), and the Medical College of Wisconsin, Milwaukee (E.L.A.); Montefiore Medical Center Moses Campus (E.M.P., J.R.) and Memorial Sloan Kettering Cancer Center (Y. Zhang, M.S.T.) - both in New York; the Department of Pathology and the Center for Excellence for Leukemia Studies (K.G.R., Y. Zhao, C.G.M.) and the Center for Applied Bioinformatics (G.W., T.-C.C., W.Z.), St. Jude's Children's Research Hospital, Memphis, TN; Case Western Reserve University (H.M.L.) and Cleveland Clinic Foundation (A.S.A.), Cleveland, and the Ohio State University Comprehensive Cancer Center, Columbus (B.B.) - all in Ohio; Shaare Zedek Medical Center, Jerusalem, Israel (J.M.R.); Stanford Cancer Institute, Palo Alto (D.A.A., M.L.), the University of California, San Diego, Moores Cancer Center, La Jolla (M.J.W., D.T.), and the University of California, Irvine, Health Cancer Center-Newport, Orange (D.J.) - all in California; the University of Chicago (D.A.A.) and Northwestern University (S.N.D.) - both in Chicago; Hopital Maisonneuve-Rosemont, Montreal (J.B.); the University of Washington, Seattle (B.L.W.); Johns Hopkins University Sidney Kimmel Cancer Center, Baltimore (K.W.P.), and the National Cancer Institute, National Institutes of Health, Bethesda (E.S., R.F.L.) - both in Maryland; the University of Pennsylvania Abramson Cancer Center, Philadelphia (N.F., S.M.L.); Yale School of Medicine, New Haven, CT (S.D.G.); the Washington University in St. Louis School of Medicine, St. Louis (G.L.U.); the University of Kansas Cancer Center, Westwood (T.L.L.); Virginia Commonwealth University Massey Cancer Center, Richmond (S.B.P.); the University of Alabama at Birmingham, Birmingham (P.V.); and Wake Forest University Health Sciences, Winston-Salem (R.R.B.), and Duke University Medical Center, Durham (H.P.E.) - both in North Carolina.

Background: Many older adults with B-cell precursor acute lymphoblastic leukemia (BCP-ALL) have a relapse despite having a measurable residual disease (MRD)-negative complete remission with combination chemotherapy. The addition of blinatumomab, a bispecific T-cell engager molecule that is approved for the treatment of relapsed, refractory, and MRD-positive BCP-ALL, may have efficacy in patients with MRD-negative remission.

Methods: In a phase 3 trial, we randomly assigned patients 30 to 70 years of age with -negative BCP-ALL (with :: indicating fusion) who had MRD-negative remission (defined as <0.

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