102,866 results match your criteria: "Central R&D Center[Affiliation]"

Background: An increasing amount of data has been acquired on the close relationship between Vitamin K intake and the progression of periodontitis. The purpose of this study was to estimate whether Vitamin K intake is associated with periodontitis among older adults in America using information from the National Health and Nutrition Examination Survey (NHANES) database.

Methods: A cross-sectional analysis of data on periodontal indices and vitamin K intake among American adults aged 60 years and older in the 2009-2014 NHANES database was extracted.

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Distribution of nailfold videocapillaroscopy parameters in systemic lupus erythematosus and their association with disease activity: an international blinded case-control analysis on behalf of the EULAR study group on microcirculation in rheumatic diseases.

RMD Open

September 2025

Department of Rheumatology and Department of Internal Medicine, Ghent University Hospital, Unit for Molecular Immunology and Inflammation, Flemish Institute for Biotechnology, Inflammation Research Center, University of Ghent, Ghent, Belgium.

Objectives: To evaluate whether patients with systemic lupus erythematosus (SLE) have different nailfold videocapillaroscopy (NVC) findings compared with healthy controls (HCs) and whether there is an association between NVC abnormalities and disease activity, clinical and/or laboratory features in SLE.

Methods: This is an observational, multicentre, international, matched case-control study. 381 subjects (203 patients with SLE and 178 HCs) were enrolled from 16 centres in 10 countries.

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Introduction: Pressure-based fractional flow reserve (FFR) and flow-based coronary flow reserve (CFR) assess the functional status of coronary artery disease (CAD) during cardiac catheterization. Complex hemodynamics may not be adequately explained by either pressure or flow alone. Consequently, pressure-drop coefficient (CDP, the ratio between pressure-drop across a stenosis and distal dynamic pressure) that combines both pressure and flow measurements has been developed to distinguish between epicardial stenosis (ES) and microvascular disease (MVD).

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Muricholic acid mediates puberty initiation via the hypothalamic TGR5 signaling pathway.

Proc Natl Acad Sci U S A

September 2025

Department of Endocrinology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China.

The onset of puberty is increasingly observed at earlier ages in children, especially in girls with obesity, a trend that predisposes them to long-term metabolic and reproductive disorders in adulthood. Bile acids have emerged as pivotal signaling molecules in both metabolic and reproductive disorders, but remain unexplored in the early onset of puberty in children. Herein, we find elevated levels of muricholic acid (MCA) species in the serum of girls with central precocious puberty, which strongly correlate with indices of hypothalamic-pituitary-gonadal axis activation and can reach peak levels during puberty among healthy children.

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Assessing the prevalence of antimicrobial resistance among pediatric patients at Kamuzu Central Hospital, Malawi.

J Infect Dev Ctries

August 2025

Division of Epidemiology and Biostatistics, Global Health Department, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.

Introduction: Severe bacterial infections cause significant disease burden in developing countries, including Malawi. The situation is compounded by the scarcity of resources, inconsistent availability of antibiotics, and increasing antimicrobial resistance (AMR).

Methodology: This was a descriptive retrospective study where we analyzed blood culture results of pediatric patients admitted to Kamuzu Central Hospital (KCH), Lilongwe, Malawi.

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Large B cell lymphoma microenvironment archetype profiles.

Cancer Cell

July 2025

Department of Lymphoma and Myeloma, University of Texas (UT) MD Anderson Cancer Center, Houston, TX, USA; Lymphoid Malignancies Program, UT MD Anderson Cancer Center, Houston, TX, USA; Department of Genomic Medicine, UT MD Anderson Cancer Center, Houston, TX, USA. Electronic address: mgreen5@mdander

Large B cell lymphomas (LBCL) are clinically and biologically heterogeneous lymphoid malignancies with complex microenvironments that are central to disease etiology. Here, we have employed single-nucleus multiome profiling of 232 tumor and control biopsies to characterize diverse cell types and subsets that are present in LBCL tumors, effectively capturing the lymphoid, myeloid, and non-hematopoietic cell compartments. Cell subsets co-occurred in stereotypical lymphoma microenvironment archetype profiles (LymphoMAPs) defined by; (1) a sparsity of T cells and high frequencies of cancer-associated fibroblasts and tumor-associated macrophages (FMAC); (2) lymph node architectural cell types with naive and memory T cells (LN); or (3) activated macrophages and exhausted CD8 T cells (TEX).

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Introduction: Allogeneic hematopoietic stem-cell transplantation (allo-HSCT) requires reliable vascular access for medication, transfusion, and blood sampling, which often involves painful venipuncture. This prospective study evaluated a novel dual peripherally inserted central venous catheter (PICC) technique to reduce venipuncture frequency in allo-HSCT recipients.

Methods: The study enrolled 29 allo-HSCT recipients.

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Knowledge mapping of plasmacytoid dendritic cells in systemic lupus erythematosus: a bibliometric analysis (2004-2023).

Clin Rheumatol

September 2025

Department of Dermatology, the First Affiliated Hospital, Army Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, China.

Background: Plasmacytoid dendritic cells (pDCs) are a specialized subset of dendritic cells known for their ability to produce type I interferon (IFN I), contributing to antiviral defense and the pathogenesis of autoimmune diseases like systemic lupus erythematosus (SLE). In SLE patients, pDCs are excessively activated, leading to overproduction of IFN-α, which plays a critical role in disease progression. However, no bibliometric analysis has been conducted on the relationship between pDCs and SLE.

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Mutations in the human ADAR gene encoding adenosine deaminase acting on RNA 1 (ADAR1) cause Aicardi-Goutières syndrome 6 (AGS6); a severe auto-inflammatory encephalopathy with aberrant interferon (IFN) induction. AdarΔ2-13 null mutant mouse embryos lacking ADAR1 protein die with high levels of IFN-stimulated gene (ISG) transcripts. In Adar Mavs double mutants also lacking the Mitochondrial antiviral signaling (MAVS) adaptor, the aberrant IFN induction is prevented.

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Non-small cell lung cancer (NSCLC) remains a leading cause of cancer-related mortality, with "epidermal growth factor receptor (EGFR)" mutations playing a pivotal role in tumor progression and carcinogenesis. "Third-generation epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs)," such as Osimertinib, have significantly improved treatment outcomes by overcoming resistance mechanisms like the T790M mutation. However, Osimertinib's clinical application is limited by cardiotoxicity concerns, necessitating safer alternatives.

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Background: Multiple sclerosis (MS) is a major demyelinating disorder that affects the central nervous system. A growing body of evidence has revealed the involvement of coagulation pathway in the pathogenesis of MS. However, the causal association between coagulation factors and MS is still unclear.

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In the structure of the title compound, CHN·CHNOS·CHNOS, the central pyridinic rings are approximately coplanar to the benzo-thia-zole moieties. The phenyl groups are appreciably angled to the central rings [inter-planar angles of 57.30 (3)° for the anion and 79.

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Background: Arterial compliance is an independent predictor of diastolic dysfunction. Invasive catheterization can accurately reflect diastolic function. However, studies on the invasive assessment of diastolic function are currently limited.

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Obinutuzumab-induced severe acute thrombocytopenia: a case report and literature review.

Front Immunol

September 2025

Department of Haematology, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China.

Obinutuzumab is a humanized type II anti-CD20 monoclonal antibody that is widely used in B-cell lymphomas including follicular lymphoma (FL) and chronic lymphocytic leukemia (CLL). Multiple clinical studies have shown that compared with rituximab combined with chemotherapy, obinutuzumab combined with chemotherapy can significantly improve the progression-free survival (PFS) of patients, effectively reduce the risk of disease progression, and improve patient prognosis. The main adverse effects of obinutuzumab include infusion reactions, myelosuppression, infection, cardiotoxicity, tumor lysis syndrome (TLS), etc.

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Causal evidence for the primordiality of colours in trans-Neptunian objects.

Mon Not R Astron Soc Lett

October 2025

Center for Astrophysics and Space Science (CASS), New York University Abu Dhabi, PO Box 129188, Abu Dhabi, UAE.

The origins of the colours of trans-Neptunian objects (TNOs) represent a crucial unresolved question, central to understanding the history of our Solar system. Recent observational surveys revealed correlations between the eccentricity and inclination of TNOs, and their colours. This rekindled the long-standing debate on whether these colours reflect the conditions of TNO formation or their subsequent evolution.

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Clear cell renal cell carcinoma (ccRCC) is a malignant tumor, originating from the renal epithelium, and accounts for ~85% of RCC cases. The present study aimed to validate the efficacy of an MRI deep learning (DL) model to preoperatively predict the pathological grading of ccRCC. Therefore, a DL algorithm was constructed and trained using diffusion weighted imaging (DWI) and diffusion kurtosis imaging (DKI) sequence images.

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CD19CD11cT-bet B cells in myasthenia gravis: a potential biomarker.

Front Neurol

August 2025

Department of Neurology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, China.

Background: Myasthenia gravis (MG), an autoimmune disorder characterized by B cell-driven autoantibody production, exhibits heterogeneous B cell subsets dysregulation and incompletely defined signaling mechanisms.

Methods: A cohort of 20 naïve MG patients positive for anti-acetylcholine receptor (AChR) antibodies and 15 healthy controls was analyzed. Peripheral blood mononuclear cells underwent proteomic profiling, flow cytometry (age-associated B cells (ABCs), plasma cells, T follicular helper cells, and regulatory B cells), and western blot validation of nuclear factor kappa-B (NF-κB)/cellular reticuloendotheliosis oncogene homolog (c-Rel) expression.

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Objectives: Patients with connective tissue diseases (CTD) have a high incidence of cardiac involvement, which often presents insidiously and can progress rapidly, making it one of the leading causes of death. Multiparametric cardiovascular magnetic resonance (CMR) provides a comprehensive quantitative evaluation of myocardial injury and is emerging as a valuable tool for detecting cardiac involvement in CTD. This study aims to investigate the correlations between CMR features and serological biomarkers in CTD patients, assess their potential clinical value, and further explore the impact of pre-CMR immunotherapy intensity on CMR-specific parameters, thereby evaluating the role of CMR in the early diagnosis of CTD-related cardiac involvement.

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Background: Effective risk communication is essential in managing cardiovascular disease, the leading cause of global mortality. Clear communication between patients and physicians supports informed decision-making, yet comprehension gaps persist. We aimed to assess the quality of risk communication during hospital admissions for cardiovascular events, from patient and physician perspectives, and identify discrepancies in risk perception and associated factors.

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Tunable Multistate Mechanoresistance in a Single-Molecule Junction Incorporating Energy-Dissipative Structures.

Angew Chem Int Ed Engl

September 2025

Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou, 310058, P.R. China.

Mechanoresponsive molecular devices are capable of exhibiting dynamic responses to external mechanical stimuli, enabling applications in smart materials, nano-devices, and flexible electronics. However, energy conversion induced by mechanical stimuli requires efficient energy dissipation mechanisms. Traditional methods often involve bond breaking or incomplete energy release, which can lead to device failure during continuous operations.

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A polydopamine-glued g-CN/CoFeWO membrane, prepared one-pot synthesis, achieves complete sulfamethoxazole degradation through synergistic photocatalysis and PMS activation. It exhibits robust stability over 10 hours of continuous operation, maintaining high efficiency (97%) even in real municipal wastewater effluent, offering a novel and promising water purification strategy.

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Atopic dermatitis (AD) is a chronic dermatological disorder characterized by intense pruritus and eczematous lesions. Repeated topical application of 2,4-dinitrofluorobenzene (DNFB) in NC/Nga mice produces AD-like clinical symptoms that closely resemble human AD. N-Acetyl-L-Alanine (L-NAA), a derivative of L-Alanine, has unknown biological and physiological effects on cutaneous tissue.

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Half-life prediction of central nervous system (CNS) small molecules in humans using gradient tree boosting.

Future Med Chem

September 2025

Computational Science & Artificial Intelligence, Xenon Pharmaceuticals Inc, Burnaby, BC, Canada.

Aims: To develop a machine learning (ML) model for early-stage prediction of human half-life of oral central nervous system (CNS) drugs and to establish a curated dataset, including key and data, to support future modeling efforts.

Materials & Methods: Human and rat half-life, plasma protein binding (PPB), and liver microsomal clearance (LM) data for 76 diverse CNS drugs and candidates were obtained from public sources or evaluated at WuXi AppTec. Gradient tree boosting (GTB) models were constructed using ChemAxon's Trainer Engine.

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Objectives: To investigate the role of circular RNA circ_0000437 in regulating biological behaviors of breast cancer cells and the molecular mechanism.

Methods: Breast cancer MCF-7 and MDA-MB-231 cells were transfected with sh-circ_0000437, mimics, inhibitor, si-CTPS1, or their respective negative controls. qRT-PCR was used to detect the expression levels of circ_0000437, let-7b-5p, CTPS1, Notch1, Hes1, and Numb in breast cancer cell lines and tissues.

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