3,849 results match your criteria: "X.D.); University of the Chinese Academy of Sciences[Affiliation]"

We develop a technology based on competitive adsorption between drug molecules and water, specifically designed to address the critical issue of poor drug solubility. By specially engineering silica nanosurfaces with ultrahigh densities of silanol, we significantly enhance their affinity for both drug molecules and water, with a notably greater increase in water affinity. Such surfaces can effectively adsorb a variety of drug molecules under dry conditions.

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We introduce a quantum-classical generative model for small-molecule design, specifically targeting KRAS inhibitors for cancer therapy. We apply the method to design, select and synthesize 15 proposed molecules that could notably engage with KRAS for cancer therapy, with two holding promise for future development as inhibitors. This work showcases the potential of quantum computing to generate experimentally validated hits that compare favorably against classical models.

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iDIA-QC: AI-empowered data-independent acquisition mass spectrometry-based quality control.

Nat Commun

January 2025

Affiliated Hangzhou First People's Hospital, State Key Laboratory of Medical Proteomics, School of Medicine, Westlake University, Hangzhou, Zhejiang Province, China.

Quality control (QC) in mass spectrometry (MS)-based proteomics is mainly based on data-dependent acquisition (DDA) analysis of standard samples. Here, we collect 2754 files acquired by data independent acquisition (DIA) and paired 2638 DDA files from mouse liver digests using 21 mass spectrometers across nine laboratories over 31 months. Our data demonstrate that DIA-based LC-MS/MS-related consensus QC metrics exhibit higher sensitivity compared to DDA-based QC metrics in detecting changes in LC-MS status.

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Location-specific net water uptake and malignant cerebral edema in acute anterior circulation occlusion ischemic stroke.

AJNR Am J Neuroradiol

January 2025

From the Department of Medical Imaging (X.Q.C.,C.S.Z.,Q.H.L.,H.M.P.,J.J.T.,B.Y.L.,G.M.L.),and neurology(W.S.Z.,A.Y.L.) Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing,Jiangsu,China; Department of radiology (B.T., X.T.,Y.X.H.,L.G.C.,C.W.S.), Changhai Hospital of Shanghai, The first affiliated hospital of Navy Medical University, Shanghai, China; Department of Medical Imaging (L.J.H.), Nanjing Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, Nanjing, Jiangsu, China; Department of Medical Imaging (X.S.), Nanjing Jinling Hospital, Nanjing Medical University, Nanjing, Jiangsu, China;Department of radiology (Q.C.,X.D.Y.,), Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.

Background And Purpose: Early identification of malignant cerebral edema (MCE) in patients with acute ischemic stroke is crucial for timely interventions. We aimed to identify regions critically associated with MCE using the Alberta Stroke Program Early Computed Tomography Score (ASPECTS) to evaluate the association between location-specific-net water uptake (NWU) and MCE.

Materials And Methods: This multicentre, retrospective cohort study included patients with acute ischemic stroke following large anterior circulation occlusion.

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Boosting Amino Acid Synthesis with WO Sub-Nanoclusters.

Adv Mater

January 2025

College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, P. R. China.

The conversion of nitrate-rich wastewater and biomass-derived blocks into high-value products using renewably generated electricity is a promising approach to modulate the artificial carbon and nitrogen cycle. Here, a new synthetic strategy of WO sub-nanoclusters is reported and supported on carbon materials as novel efficient electrocatalysts for nitrate reduction and its coupling with α-keto acids. In acidic solutions, the NH-NHOH selectivity can also optimized by adjusting the potential, with the total FE exceeding 80% over a wide potential range.

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This is a randomized, double-blind, placebo-controlled phase 3 clinical trial (ClinicalTrials.gov, NCT04878016) conducted in 54 hospitals in China. Adults who were histologically diagnosed and never treated for extensive-stage small cell lung cancer (ES-SCLC) were enrolled.

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Suppression of epileptic seizures by transcranial activation of K-selective channelrhodopsin.

Nat Commun

January 2025

Shenzhen Key Laboratory of Gene Regulation and Systems Biology, and Brain Research Center, Department of Neuroscience, School of Life Sciences, Southern University of Science and Technology, Shenzhen, China.

Optogenetics is a valuable tool for studying the mechanisms of neurological diseases and is now being developed for therapeutic applications. In rodents and macaques, improved channelrhodopsins have been applied to achieve transcranial optogenetic stimulation. While transcranial photoexcitation of neurons has been achieved, noninvasive optogenetic inhibition for treating hyperexcitability-induced neurological disorders has remained elusive.

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Multi-Layered Microneedles Loaded with Microspheres.

AAPS PharmSciTech

January 2025

School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia, 30332-0100, U.S.A..

Delivery of therapies into skin is attractive for medical indications including vaccination and treatment of dermatoses but is highly constrained by the stratum corneum barrier. Microneedle (MN) patches have emerged as a promising technology to enable non-invasive, intuitive, and low-cost skin delivery. When combined with biodegradable polymer formulations, MN patches can further enable controlled-release drug delivery without injection.

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Rationale And Objectives: Mixed ground-glass nodules (mGGNs) are highly malignant and common nonspecific lung imaging findings. This study aimed to explore whether combining quantitative and qualitative spectral dual-layer detector-based computed tomography (SDCT)-derived parameters with serological tumor abnormal proteins (TAPs) and thymidine kinase 1 (TK1) expression enhances invasive mGGN diagnostic efficacy and to develop a joint diagnostic model.

Materials And Methods: This prospective study included patients with mGGNs undergoing preoperative triple-phase contrast-enhanced SDCT with TAP and TK1 tests.

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Background: Targeting the TGF-β pathway in tumor therapy has proven challenging due to the highly context-dependent functions of TGF-β. Integrin αvβ8, a pivotal activator of TGF-β, has been implicated in TGF-β signaling within tumors, as demonstrated by the significant anti-tumor effects of anti-αvβ8 antibodies. Nevertheless, the expression profile of αvβ8 remains a subject of debate, and the precise mechanisms underlying the anti-tumor effects of anti-αvβ8 antibodies are not yet fully elucidated.

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Fundus Curvature as a Clinical Marker for Posterior Staphyloma Based on Widefield Optical Coherence Tomography.

Am J Ophthalmol

December 2024

State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases (N.L., B.L., P.W., Y.L., Y.S., Y.Z., X.D., L.L., J.H., W.W., S.C.), Guangzhou, China. Electronic address:

Purpose: To investigate the ability to quantify fundus curvature and detect posterior staphyloma using widefield optical coherence tomography (OCT).

Design: Cross-sectional diagnostic evaluation.

Methods: This study reviewed 205 highly myopic eyes of 205 participants.

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Papillary Renal Neoplasm With Reverse Polarity: CT and MR Imaging Characteristics in 26 Patients.

Acad Radiol

December 2024

Department of Radiology, the First Medical Center of the Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing 100853, China (X.W., H.K., X.B., X.N., C.L., S.Y., H.W.). Electronic address:

Rationale And Objectives: To improve the diagnostic recognition of papillary renal neoplasm with reverse polarity (PRNRP) through comprehensive analysis of computed tomography (CT) and magnetic resonance imaging (MRI) findings.

Materials And Methods: A retrospective multi-center study was conducted on patients with pathologically confirmed PRNRPs from 2019 to 2024, encompassing six institutions. Clinical and pathological data were meticulously documented.

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YTHDF2 promotes ATP synthesis and immune evasion in B cell malignancies.

Cell

January 2025

Department of Systems Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA; Center for RNA Biology and Therapeutics, City of Hope Beckman Research Institute, Duarte, CA 91010, USA. Electronic address:

Long-term durable remission in patients with B cell malignancies following chimeric antigen receptor (CAR)-T cell immunotherapy remains unsatisfactory, often due to antigen escape. Malignant B cell transformation and oncogenic growth relies on efficient ATP synthesis, although the underlying mechanisms remain unclear. Here, we report that YTHDF2 facilitates energy supply and antigen escape in B cell malignancies, and its overexpression alone is sufficient to cause B cell transformation and tumorigenesis.

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Evaluating Cost and Accuracy in Two-Point Complete Basis Set Extrapolation Schemes Using Efficient Diffuse Basis Sets.

J Phys Chem A

December 2024

Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States.

A widely used procedure for obtaining the complete basis set (CBS) limit of an electronic structure method is to extrapolate results from a sequence of correlation-consistent basis sets. A recent study by Xi et al. [ , , 3742-3749] trained two-point extrapolation schemes against a new extensive dataset using aug-cc-pVZ ( = D, T, Q, 5, and 6) basis set pairs.

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Associations Between Contrast Sensitivity, Optical Coherence Tomography Features and Progression From Intermediate to Late Age-related Macular Degeneration.

Am J Ophthalmol

November 2024

From the Harvard Retinal Imaging Lab (C.B., F.R., F.V., M.G., X.D., A.B., I.P., I.S., K.O., G.B., I.G., J.R., I.L., L.A. K., and J.B.M.), Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts, USA; Department of Ophthalmology (F.R., X.D., D.N., G.B., R.B., I.L., L.A. K., D.V., D.H., J.W.M., and J.B. M.), Retina Service, Massachusetts Eye and Ear, Boston, Massachusetts, USA. Electronic address:

Article Synopsis
  • This study explores the relationships between OCT biomarkers and contrast sensitivity in eyes diagnosed with intermediate age-related macular degeneration (iAMD), aiming to improve understanding of disease progression.
  • A total of 205 eyes from 134 patients were analyzed; findings reveal that higher retinal pigment epithelium volume and intraretinal hyperreflective foci correlate with poorer contrast sensitivity measures.
  • Over a follow-up period, approximately 43% of eyes progressed to late-stage AMD, indicating the potential clinical significance of the identified biomarkers in predicting progression.
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Bowen's Formula for a Dynamical Solenoid.

Entropy (Basel)

November 2024

Faculty of Mathematics and Computer Science, University of Lodz, Banacha 22, 90-238 Łódź, Poland.

More than 50 years ago, Rufus Bowen noticed a natural relation between the ergodic theory and the dimension theory of dynamical systems. He proved a formula, known today as the Bowen's formula, that relates the Hausdorff dimension of a conformal repeller to the zero of a pressure function defined by a single conformal map. In this paper, we extend the result of Bowen to a sequence of conformal maps.

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Age-related decline in CD8 tissue resident memory T cells compromises antitumor immunity.

Nat Aging

December 2024

CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China.

Aging compromises antitumor immunity, but the underlying mechanisms remain elusive. Here, we report that aging impairs the generation of CD8 tissue resident memory T (T) cells in nonlymphoid tissues in mice, thus compromising the antitumor activity of aged CD8 T cells, which we also observed in human lung adenocarcinoma. We further identified that the apoptosis regulator BFAR was highly enriched in aged CD8 T cells, in which BFAR suppressed cytokine-induced JAK2 signaling by activating JAK2 deubiquitination, thereby limiting downstream STAT1-mediated T reprogramming.

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Article Synopsis
  • - This study explores how pentachlorophenol (PCP) reacts with hydroxyl (OH) radicals in the gas phase, using advanced computational methods like DFT and coupled cluster theory to analyze the degradation processes and identify byproducts.
  • - The research finds that reactions involving chlorine and OH abstractions are not favorable, while hydrogen abstraction and OH addition are more energetically viable and release energy.
  • - Rate constants for these reactions were calculated across a range of temperatures, with an estimated atmospheric lifetime for PCP of 1 to 12-16 years at 298 K, depending on OH concentrations.
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Sodium oligomannate (GV-971), an oligosaccharide drug approved in China for treating mild-to-moderate Alzheimer's disease (AD), was previously found to recondition the gut microbiota and limit altered peripheral Th1 immunity in AD transgenic mice. As a follow-up study, we here made advances by pinpointing a Lactobacillus murinus (L.m.

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The impact of MAFLD on coronary plaque characteristics and physiologic status: a coronary CT angiography study.

Acad Radiol

November 2024

Department of Radiology, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai 200032, China (Q.L., X-D.Z., Y-Y.X., M-M.Y., M-S.Z.). Electronic address:

Rationale And Objectives: Metabolic dysfunction-associated fatty liver disease (MAFLD) is linked to an increased risk of cardiovascular events. Our study sought to determine the impact of MAFLD on both the anatomy and function of coronary plaques.

Materials And Methods: A total of 203 participants (including 728 plaques) with suspected coronary artery disease (CAD) who underwent coronary CT angiography (CCTA) and abdominal ultrasound were prospectively enrolled.

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Triple-negative breast cancers (TNBC) are treated primarily by chemotherapy and lack clinically validated therapeutic targets. In particular, inhibitors of the PI3K/AKT/mTOR pathway, abnormally activated in many breast cancers, failed to achieve clinical efficacy in TNBC due to the development of adaptive drug resistance, which is largely driven by the transcriptomic plasticity of TNBC. Expression of CDK8/19 Mediator kinases that control transcriptional reprogramming correlates with relapse-free survival and treatment failure in breast cancer patients, including TNBC.

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Inebilizumab for Treatment of IgG4-Related Disease.

N Engl J Med

November 2024

From the Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston (J.H.S., Z.S.W., C.A.P.); the Division of Rheumatology, Emory University School of Medicine, Atlanta (A.K.); the Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, National Clinical Research Center for Dermatologic and Immunologic Diseases, Beijing (W.Z.), and the Department of Rheumatology and Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (L.D.) - both in China; the Unit of Immunology, Rheumatology, Allergy, and Rare Diseases, IRCCS San Raffaele Scientific Institute, Milan (E.D.T., M.L.); the Department of Internal Medicine, Kansai Medical University Kori Hospital, Osaka (K.O.), the First Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu (Y.T.), and Nagahama City Hospital, Nagahama (H.U.) - all in Japan; the Department of Clinical Science, Intervention, and Technology, Karolinska Institutet, Stockholm (J.M.L.); Aix-Marseille Université, Assistance Publique-Hôpitaux de Marseille, Centre National de la Recherche Scientifique, INSERM, Centre d'Immunologie de Marseille-Luminy, Hopital de la Timone, Internal Medicine Department, Marseille (N.S., M.E.), and the Pancreatology and Digestive Oncology Department, Beaujon Hospital, Université Paris Cité, Clichy (V.R.) - both in France; the Department of Gastroenterology, University College London Hospitals, London (G.J.W.), the Hepato-Pancreato-Biliary Unit, Freeman Hospital, Newcastle upon Tyne (M.K.N.), and the Translational Gastroenterology and Liver Unit, John Radcliffe Hospital, and Nuffield Department of Medicine, University of Oxford, Oxford (E.L.C.) - all in the United Kingdom; the Internal Medicine Department, Vall d'Hebron Hospital, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona (F.M.V.); and Amgen, Thousand Oaks, CA (X.D., Y.W., Q.L., N.R., D.C.).

Article Synopsis
  • IgG4-related disease is a chronic immune disorder with no current approved treatment, and inebilizumab, which targets CD19+ B cells, is being tested as a potential therapy.
  • In a phase 3 trial, 135 adults with active IgG4-related disease were randomly assigned to receive either inebilizumab or a placebo, and the primary measure was time until the first disease flare.
  • Results showed that patients receiving inebilizumab had significantly fewer disease flares (10% vs. 60% in the placebo group), lower annual flare rates, and higher rates of complete remission without treatment compared to those in the placebo group.
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Continuously monitoring human airway conditions is crucial for timely interventions, especially when airway stents are implanted to alleviate central airway obstruction in lung cancer and other diseases. Mucus conditions, in particular, are important biomarkers for indicating inflammation and stent patency but remain challenging to monitor. Current methods, reliant on computational tomography imaging and bronchoscope inspection, pose risks due to radiation and lack the ability to provide continuous real-time feedback outside of hospitals.

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