894 results match your criteria: "X.J.; and Maxcure Hospitals[Affiliation]"

Protoberberine alkaloids and benzophenanthridine alkaloids (BZDAs) are subgroups of benzylisoquinoline alkaloids (BIAs), which represent a diverse class of plant-specialized natural metabolites with many pharmacological properties. Microbial biosynthesis has been allowed for accessibility and scalable production of high-value BIAs. Here, we engineer Saccharomyces cerevisiae to de novo produce a series of protoberberines and BZDAs, including palmatine, berberine, chelerythrine, sanguinarine and chelirubine.

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regulates extrahepatic siRNA-mediated gene silencing efficacy.

Mol Ther Nucleic Acids

December 2024

Precision Biology, Amgen Inc., South San Francisco, CA 94080, USA.

Article Synopsis
  • Small interfering RNAs (siRNAs) have the potential to target and silence difficult disease-related genes, providing new ways to treat diseases.* -
  • While delivering siRNAs to the liver via N-acetylgalactosamine (GalNAc) has proven effective, delivering siRNAs to other cell types remains a challenge.* -
  • Research shows that certain cellular mechanisms, including retrograde transport and lipid droplets, can enhance the effectiveness of siRNA delivery and gene silencing in both liver and non-liver cell types.*
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Bony changes such as glenoid bone defects and Hill-Sachs lesions are responsible for recurrent anterior shoulder dislocations. With the development of arthroscopic techniques as well as arthroscopic surgical instruments, arthroscopic repair of bony structures has become an important surgical procedure for the treatment of recurrent shoulder dislocation. In this Technical Note, we used screws to fill Hill-Sachs lesions and autologous iliac bone grafts combined with soft tissue to repair the glenoid bone defects.

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  • This study investigates spine degeneration differences among older populations in Hong Kong (HK) Chinese, Thais, and Indonesians, focusing on radiographic features.
  • It includes 195 Thai women, 202 Thai men, 227 Indonesian women, and 174 Indonesian men, all age-matched with HK Chinese participants, to assess various spine conditions through radiographs.
  • The findings reveal that older Chinese exhibit higher rates of spine degeneration issues compared to Thais and Indonesians, with Indonesians showing the least prevalence, potentially linked to climate factors.
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Heart failure is a leading cause of morbidity and mortality. Elevated intracardiac pressures and myocyte stretch in heart failure trigger the release of counter-regulatory natriuretic peptides, which act through their receptor (NPR1) to affect vasodilation, diuresis and natriuresis, lowering venous pressures and relieving venous congestion. Recombinant natriuretic peptide infusions were developed to treat heart failure but have been limited by a short duration of effect.

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Accurately predicting ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) properties early in drug development is essential for selecting compounds with optimal pharmacokinetics and minimal toxicity. Existing ADMET-related benchmark sets are limited in utility due to their small dataset sizes and the lack of representation of compounds used in drug discovery projects. These shortcomings hinder their application in model building for drug discovery.

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Prevalence of Hyperkalemia and Familial Hyperkalemic Hypertension in 5100 Patients Referred to a Tertiary Hypertension Unit.

Hypertension

November 2024

Division of Internal Medicine and Hypertension Unit, Department of Medical Sciences (M.T., J.B., F.V., F.R., P.M., S.M.), University of Torino, Italy.

Article Synopsis
  • Hyperkalemia is a common electrolyte imbalance, impacting around 7.3% of patients with hypertension, often due to medications or chronic kidney disease.
  • A small percentage (0.04%) of these patients had familial hyperkalemic hypertension (FHH), with higher prevalence in those with unexplained hyperkalemia.
  • Hyperkalemia is linked to increased cardiovascular risks, emphasizing the need for early diagnosis and tailored treatment strategies for effective management.
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  • Renal denervation (RDN) was tested in a sham-controlled trial in China to see if it can effectively lower blood pressure (BP) in hypertensive patients on medication.
  • The study involved 217 participants, showing that those who underwent RDN experienced a significantly greater reduction in 24-hour ambulatory systolic BP (by -13.0 mm Hg) compared to the placebo group (by -3.0 mm Hg).
  • Overall, RDN was found to be safe, as only one minor complication occurred, and it effectively reduced both ambulatory and office BP at the 6-month mark compared to the sham procedure.
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Article Synopsis
  • * A new thermosensitive poloxamer-based gel that can be imaged with x-ray and ultrasound was developed, using microbubbles to enhance visibility.
  • * This gel aids in precise drug delivery by allowing for better imaging integration, potentially improving targeting and reducing radiation exposure during cancer treatments.
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Heritability and Genetic Factors of Astigmatism and Corneal Curvature: A Systematic Review and Meta-analysis.

Am J Ophthalmol

January 2025

From the Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong (E.S., K.W.K., E.Z., X.J.Z., A.L.Y., C.P.P., C.C.T., J.C.Y., L.J.C.), Hong Kong, China; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital (K.W.K., A.L.Y., C.P.P., C.C.T., J.C.Y., L.J.C.), Hong Kong, China; Hong Kong Eye Hospital (C.C.T., J.C.Y., L.J.C.), Hong Kong, China. Electronic address:

Purpose: To systematically review and meta-analyze all reported heritability studies of refractive astigmatism (RA), corneal astigmatism (CA) and corneal curvature (CC), and evaluate the existing genetic associations of RA, CA and CC.

Design: Systematic review and meta-analysis (PROSPERO ID: CRD42023447370).

Methods: Studies that reported the heritability and genetic associations of RA, CA and/or CC were identified from PubMed, Web of Science and EMBASE (from inception to October 1, 2023).

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Multistage protective anti-CelTOS monoclonal antibodies with cross-species sterile protection against malaria.

Nat Commun

August 2024

Host‒Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.

CelTOS is a malaria vaccine antigen that is conserved in Plasmodium and other apicomplexan parasites and plays a role in cell-traversal. The structural basis and mechanisms of CelTOS-induced protective immunity to parasites are unknown. Here, CelTOS-specific monoclonal antibodies (mAbs) 7g7 and 4h12 demonstrated multistage activity, protecting against liver infection and preventing parasite transmission to mosquitoes.

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Engineered minimal type I CRISPR-Cas system for transcriptional activation and base editing in human cells.

Nat Commun

August 2024

State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.

Type I CRISPR-Cas systems are widespread and have exhibited high versatility and efficiency in genome editing and gene regulation in prokaryotes. However, due to the multi-subunit composition and large size, their application in eukaryotes has not been thoroughly investigated. Here, we demonstrate that the type I-F2 Cascade, the most compact among type I systems, with a total gene size smaller than that of SpCas9, can be developed for transcriptional activation in human cells.

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Article Synopsis
  • A prediction model was developed to identify patients without prostate cancer (non-PCa) who have high-risk biopsy results, with the aim of reducing unnecessary biopsies.
  • The study involved 1580 patients, with key predictors for non-PCa including age, prostate volume, and PSA density, leading to a nomogram that demonstrated high accuracy in predicting outcomes.
  • The nomogram showed a strong potential to avoid unnecessary biopsies while only slightly increasing the risk of missing actual cases of prostate cancer, thus enhancing clinical decision-making.
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A Systematic Review on Conditions Before and After Training of Teamwork Competencies and the Effect on Transfer of Skills to the Clinical Workplace.

Simul Healthc

August 2024

From the Research Center for Emergency Medicine, Aarhus University Hospital, Aarhus (J.W., K.K., K.G.L.); Department of Medicine, Randers Regional Hospital, Randers (J.W., K.G.L.); Department of Anesthesiology and Intensive Care Medicine, Aarhus University Hospital, Aarhus, Denmark (K.K.); Department of Health Services Administration, University of Alabama at Birmingham, Birmingham, AL (E.E.B.); Department of Family Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA (K.X.); School of Nursing and Health Professions, University of San Francisco, CA (J.K.); Department of Anesthesiology and Operative Intensive Care Medicine, Charité Campus Mitte and Campus Virchow Klinikum, Charité-Universitaetsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany (A.B.); Laerdal Medical Copenhagen, Denmark (A.B.); Emergency, Prehospital, Perioperative and Critical Care research Group, Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, United Kingdom (A.B.); Aberdeen Business School, Robert Gordon University, Aberdeen, Scotland (R.F.); Emergency Department, Gold Coast Hospital and Health Service Gold Coast (V.B.); Bond Translational Simulation Collaborative Translational Simulation Collaborative, Faculty of Health Sciences and Medicine, Bond University Gold Coast, Queensland, Australia (V.B.); Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, CA (S.N.G.-F.); Department of Surgery, LSU Health New Orleans School of Medicine, New Orleans, LA (J.P.); and Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, PA (K.G.L.).

We conducted a systematic review to assess if any condition before- or after simulation-based training of teamwork competencies for healthcare professionals affects learning or transfer of skills to the clinical environment.We searched CINAHL, Medline, and Embase for studies published between January 1, 2011, and July 10, 2023. We screened 13,149 abstracts and 335 full texts, of which 5 studies were included.

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Background: To understand the role of hypertensive disorders of pregnancy (HDP), including preeclampsia and gestational hypertension (GH), in brain health earlier in life, we investigated the association of HDP with midlife cognition and brain health.

Methods: We studied a prospective cohort of women, baseline age 18 to 30 years, who were assessed at study years 25 and 30 with a cognitive battery and a subset with brain magnetic resonance imaging. A history of HDP was defined based on self-report.

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Simulations of classical three-body thermalization in one dimension.

Phys Rev E

July 2024

Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47906, USA.

One-dimensional systems, such as nanowires or electrons moving along strong magnetic field lines, have peculiar thermalization physics. The binary collision of pointlike particles, typically the dominant process for reaching thermal equilibrium in higher-dimensional systems, cannot thermalize a 1D system. We study how dilute classical 1D gases thermalize through three-body collisions.

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An Accurate and Rapidly Calibrating Speech Neuroprosthesis.

N Engl J Med

August 2024

From the Departments of Neurological Surgery (N.S.C., M.W., C.I., X.H., T.S.-C., M.V.N., A.S., K.S., S.D.S., D.M.B.), Computer Science (X.H., M.V.N.), and Biomedical Engineering (T.S.-C., A.S.), University of California, Davis, Davis, and the Departments of Neurosurgery (D.R.D., E.Y.C., J.M.H.), Electrical Engineering (E.M.K.), and Computer Science (C.F.), the Wu Tsai Neurosciences Institute (E.M.K., J.M.H.), the Howard Hughes Medical Institute (F.R.W.), and Bio-X (J.M.H.), Stanford University, Stanford - both in California; the Departments of Radiology and Neuroscience, Washington University School of Medicine, Saint Louis (M.F.G.); the School of Engineering and Carney Institute for Brain Sciences, Brown University (L.R.H.), and the Center for Neurorestoration and Neurotechnology, Department of Veterans Affairs Office of Rehabilitation Research and Development, VA Providence Healthcare (L.R.H.) - both in Providence, RI; and the Center for Neurotechnology and Neurorecovery, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston (L.R.H.).

Background: Brain-computer interfaces can enable communication for people with paralysis by transforming cortical activity associated with attempted speech into text on a computer screen. Communication with brain-computer interfaces has been restricted by extensive training requirements and limited accuracy.

Methods: A 45-year-old man with amyotrophic lateral sclerosis (ALS) with tetraparesis and severe dysarthria underwent surgical implantation of four microelectrode arrays into his left ventral precentral gyrus 5 years after the onset of the illness; these arrays recorded neural activity from 256 intracortical electrodes.

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Genotype Associated With Visual Prognosis in Patients With Congenital Ectopia Lentis Following Lens Surgery: A Prospective Cohort Study.

Am J Ophthalmol

December 2024

From the Eye Institute and Department of Ophthalmology (W.N.J., Z.X.C., Y.L.W., X.S., X.Y.C., T.H.C., Y.S., Y.L., L.H.S., Q.Y.H., and Y.X.J.), Eye & ENT Hospital, Fudan University, Shanghai China; NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia (W.N.J., Z.X.C., Y.L.W., X.S., X.Y.C., T.H.C., Y.S., Y.L., L.H.S., Q.Y.H., and Y.X.J.), Chinese Academy of Medical Sciences, Shanghai, China; Shanghai Key Laboratory of Visual Impairment and Restoration (W.N.J., Z.X.C., Y.L.W., X.S., X.Y.C., T.H.C., Y.S., Y.L., L.H.S., Q.Y.H., and Y.X.J.), Shanghai, China. Electronic address:

Purpose: To investigate the relationship between visual prognosis and genotype in patients undergoing lens surgery for congenital ectopia lentis (EL).

Design: Prospective clinical cohort study.

Methods: Patients with congenital EL who underwent lens removal and intraocular lens implantation received panel-based next-generation sequencing.

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Article Synopsis
  • Prostate stem cell antigen (PSCA) is important in all stages of prostate cancer and is a potential marker for other cancers like pancreatic and renal cell carcinoma.
  • Researchers developed a fully human PSCA antibody, F12, that specifically targets PSCA and has shown the ability to internalize into cancer cells.
  • The antibody-drug conjugate F12-MMAE demonstrated effective and specific treatment in a mouse model of prostate cancer, highlighting its potential for further research in various solid tumors.
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Previous studies on successful anastomosis after intersphincteric resection (ISR) for low rectal cancer (LRC) primarily focused on anastomotic complications rather than functional outcomes. Here, we improved the anastomotic success criteria by considering surgical, oncological, and functional outcomes and proposed a new composite outcome, "textbook anastomotic success" (TASS). This retrospective single-center study included patients with LRC treated with ISR from January 2014 to April 2020.

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Patient-reported symptoms and burden of eosinophilic esophagitis: evidence from real-world clinical practice.

BMC Gastroenterol

August 2024

BioPharmaceuticals Medical, AstraZeneca, 200 Orchard Ridge Dr, Gaithersburg, MD, 20878, USA.

Article Synopsis
  • Eosinophilic esophagitis is a chronic inflammation of the esophagus, and a study analyzed patient and physician surveys to understand its clinical characteristics and impact on quality of life.
  • The study included 1001 patients, with 36% experiencing dysphagia despite treatment, revealing similar demographics and clinical features between those with and without dysphagia.
  • Patients with dysphagia reported more symptoms, greater impacts on daily activities, and increased anxiety compared to the overall patient population, highlighting the need for better awareness and treatment options for this condition.
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Rapid iPSC inclusionopathy models shed light on formation, consequence, and molecular subtype of α-synuclein inclusions.

Neuron

September 2024

Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Boston, MA, USA; Division of Movement Disorders, American Parkinson Disease Association (APDA) Center for Advanced Research and MSA Center of Excellence, Department of Neurology, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; The Broad Institute of MIT and Harvard, Cambridge, MA, USA; Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA; Harvard Stem Cell Institute, Cambridge, MA, USA. Electronic address:

Article Synopsis
  • The study investigates protein-rich inclusions in neurodegeneration, noting that current iPSC models lack reproducibility and speed in developing these inclusions.
  • Researchers created new iPSC models that allow for rapid production of CNS cells with proteins prone to aggregation, enabling the tracking of inclusions at a single level.
  • They identified various inclusion types with differing effects on neuron survival and isolated proteins that could influence toxicity, paving the way for improved drug development for neurodegenerative diseases.
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Ionizable lipid nanoparticles (LNPs) are seeing widespread use in mRNA delivery, notably in SARS-CoV-2 mRNA vaccines. However, the expansion of mRNA therapies beyond COVID-19 is impeded by the absence of LNPs tailored for diverse cell types. In this study, we present the AI-Guided Ionizable Lipid Engineering (AGILE) platform, a synergistic combination of deep learning and combinatorial chemistry.

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