Publications by authors named "R-S Yang"

Chiral hybrid organic-inorganic metal halides (HOMHs) hold great promise in broad applications ranging from ferroelectrics, spintronics to nonlinear optics, owing to their broken inversion symmetry and tunable chiroptoelectronic properties. Typically, chiral HOMHs are constructed by chiral organic cations and metal anion polyhedra, with the latter regarded as optoelectronic active units. However, the primary design approaches are largely constrained to regulation of general components within structural formula.

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Background: Previous studies have suggested that neighborhoods characterized by higher walkability are related to a reduced risk of ischemic heart disease (IHD), whereas exposure to PM is positively associated with risk of IHD. Nevertheless, their joint impact on IHD warrants further investigation.

Methods: This prospective cohort study was performed in Yinzhou, Ningbo, China, comprising 47,516 participants.

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Background The prognostic value of coronary CT angiography (CTA)-derived quantitative flow ratio (CT-QFR) remains unknown. Purpose To determine the prognostic value of CT-QFR in predicting the long-term outcomes of patients with suspected coronary artery disease (CAD) in comparison with invasive coronary angiography (ICA)/SPECT and to determine the influence of prior percutaneous coronary intervention (PCI) on the prognostic value of CT-QFR. Materials and Methods In this secondary analysis of the prospective international CORE320 study, 379 participants who underwent coronary CTA and SPECT within 60 days before ICA between November 2009 and July 2011 were included for follow-up.

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The Hepatitis B core antigen (HBcAg) has been used as a carrier of several heterologous protein fragments based on its capacity to form virus-like particles (VLPs) and to activate innate and adaptive immune responses. In the present work, two chimeric proteins were designed as potential pancorona vaccine candidates, comprising the N- or C- terminal domain of SARS-CoV-2 nucleocapsid (N) protein fused to HBcAg. The recombinant proteins, obtained in E.

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Genetically encoded voltage indicators (GEVIs) allow optical recording of membrane potential from targeted cells . However, red GEVIs that are compatible with two-photon microscopy and that can be multiplexed with green reporters like GCaMP, are currently lacking. To address this gap, we explored diverse rhodopsin proteins as GEVIs and engineered a novel GEVI, 2Photron, based on a rhodopsin from the green algae .

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Calcium ions are crucial in numerous physiological processes, and their precise measurement is important for many clinical diagnostics and therapeutic interventions. Traditional detection methods, such as atomic absorption spectroscopy, cannot meet clinical requirements, as they measure total calcium instead of the clinically relevant ionized form (Ca). Ion-selective electrodes (ISEs) provide a convenient, accurate, and specific method for Ca determination.

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Chiral separation plays a pivotal role in both practical applications and industrial productions. However, traditional chiral stationary phases (CSPs) exhibit inherent instability in alkaline environments, presenting a significant challenge despite their importance. Herein, basophilic alcalase is creatively developed to fabricate ultrastable protein-based CSPs that can efficiently work under alkaline conditions.

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Blending multiple polymers together to form the so-called "high-entropy polymers (HEPs)" can generate the effects of molecular dispersion in addition to suppressing polymer phase separation. We embedded a semiconducting polymer (conjugated polymers, CPs) in an optically inert matrix composed of polymer species and found that a molecule-level dispersion is attained in HEPs defined as ≥ 5. In the regime of dilute CP concentrations, the photonic properties vary widely in the = 1 matrices owing to diverse solubility parameters, but the distribution narrows with , and the CP starts to exhibit behaviors of molecule-level dispersion at ≥ 5, where the matrix polymers compete with each other to exert direct influences on the embedded CP.

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Background: Cognitive decline poses one of the greatest global challenges for health and social care, particularly in China, where the burden on the older adult population is most pronounced. Despite the rapid expansion of internet access, there is still limited understanding of the long-term cognitive impacts of internet use among middle-aged and older adults.

Objective: This study aims to explore the association between internet use and age-related cognitive decline among middle-aged and older Chinese adults.

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Rhodamines have been continuously optimized in brightness, biocompatibility, and color to fulfill the demands of modern bioimaging. However, the problem of phototoxicity caused by the excited fluorophore under long-term illumination has been largely neglected, hampering their use in time-lapse imaging. Here we introduce cyclooctatetraene (COT) conjugated rhodamines that span the visible spectrum and exhibit significantly reduced phototoxicity.

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Background: Evidence from toxicological studies indicate organophosphate esters (OPEs) are neurotoxic, but few epidemiological studies investigated associations between gestational OPEs and executive function.

Objective: To examine the associations between gestational concentrations of OPE urinary metabolites and executive function at 12 years.

Methods: We used data from 223 mother-adolescent dyads from the Health Outcomes of Measures of the Environment (HOME) Study.

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Various lipid metabolism-related factors are essential for Zika virus (ZIKV) replication. In this study, we revealed a crucial role of diacylglycerol O-acyltransferase 2 (DGAT2) in ZIKV replication using a short hairpin RNA-based gene knockdown technique. The replication of ZIKV was significantly inhibited by DGAT2 depletion in multiple cell lines and restored by trans-complementation with DGAT2.

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Article Synopsis
  • Platelet extracellular vesicles (pEVs) from human platelets show promise in wound healing but have limited use in bandages; this research explores new hydrogel foams for their incorporation.
  • The developed gelatine-based hydrogel (PAH-G) has good mechanical properties and can absorb high concentrations of pEVs, enhancing their therapeutic delivery.
  • In tests on chronic wound healing in rats, treatment with the new hydrogel/pEV combination led to complete wound closure and improved healing dynamics, indicating their potential for personalized diabetic wound therapies.
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To explore the application value of SAA (serum amyloid A), CRP (C reactive protein), PCT (procalcitonin), WBC (white blood cell) and N% (neutrophil %) in the diagnosis of neonatal septicemia. This study was a retrospective study. 173 children with clinically diagnosed septicemia and 66 children with definitely diagnosed septicemia admitted to the Department of Neonatology, the Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China,from January 2022 to January 2024 were selected as the case group, and 148 children with neonatal jaundice who were hospitalized during the same period were selected as the control group.

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Objective: This study analyzes symptoms in lung cancer patients undergoing immunotherapy to identify core symptom clusters through network analysis and lay a foundation for effective symptom management programs.

Methods: The sample comprised 240 lung cancer patients receiving immunotherapy. Participants were assessed using the Memorial Symptom Assessment Scale.

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Article Synopsis
  • Hypertension, or high blood pressure, can lead to serious health problems like heart disease and memory issues, especially in older people.
  • Many older adults struggle with managing hypertension because they often take multiple medications, which can cause side effects and make it hard to stick to treatment.
  • Good public health messages are needed to help doctors and patients understand how to better manage high blood pressure in older adults.
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  • The small-signal S parameters of AlGaN/GaN HEMTs were measured across different DC operating points to analyze their performance under bias conditions.
  • Effective and intrinsic electron velocities were calculated, revealing the relationship between gate bias and these velocities, as well as their dependence on parasitic resistances.
  • The study highlighted the complex interactions of gate bias with electron scattering mechanisms, offering insights into how to optimize device structures for improved performance in AlGaN/GaN HEMTs.
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Two enantiomeric novel chiral stationary phases (CSPs) R-3-Amide-BINOL CSP (CSP-1) and S-3-Amide-BINOL CSP (CSP-2) were prepared using (R/S)-1,1'-bi-2-naphthol (BINOL) derivatives as chiral selectors. The structure of CSPs was characterized by nuclear magnetic resonance, scanning electron microscope and elemental analysis. Four chiral solutes were selected under normal phase HPLC conditions to evaluate the chiral separation ability of the two novel CSPs.

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Detection of cancer early, when it is most treatable, remains a significant challenge because of the lack of diagnostic methods sufficiently sensitive to detect nascent tumors. Early-stage tumors are small relative to their tissue of origin, heterogeneous, and infrequently manifest in clinical symptoms. The detection of early-stage tumors is challenging given the lack of tumor-specific indicators (ie, protein biomarkers, circulating tumor DNA) to enable detection using a noninvasive diagnostic assay.

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Article Synopsis
  • WHaloCaMP is a new, bright calcium indicator that can be genetically targeted and multiplexed, allowing for simultaneous imaging of multiple signals in biological tissues.
  • It works by using a dye-ligand that changes fluorescence based on calcium binding, significantly increasing brightness and fluorescence lifetime for better imaging quality.
  • The tool has been successfully used in live imaging of calcium responses in various organisms, including flies, mice, and zebrafish larvae, demonstrating its versatility and effectiveness for studying cellular physiology.
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Purpose: Inherited retinal dystrophies (IRDs) lead to significant vision impairment. Refractive errors (REs) are also associated with vision impairment and an increased risk of ocular comorbidities and may compound impairment caused by IRDs. Identifying the pattern of RE in IRDs may assist in better management of patients with IRD and provide insights into understanding genetic associations with RE.

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Purpose: The body contour of patients with cervical cancer is prone to change between radiotherapy sessions. This study aimed to investigate the effect of body contour changes on the setup and dosimetric accuracy of radiotherapy.

Methods: 15 patients with cervical cancer after surgery were randomly selected for retrospective analysis.

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As a novel class of chiral stationary phase (CPS) material, chiral covalent organic frameworks (CCOFs) have already shown great promise in open-tubular capillary electrochromatography (OT-CEC) for chiral separation. The synthesis methods of CCOFs used in OT-CEC mainly include bottom-up, post modification and chiral induction. The CCOFs synthesized by bottom-up and post modification strategies already have lots of applications in capillary electrochromatography, however, the chiral-induced synthesized via an asymmetric catalytic strategy has not yet been reported for using as the chiral stationary phase (CPS) in OT-CEC or even in chromatographic separation.

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Objective: To investigate the correlation between programmed death ligand-1 (PD-L1) expression and tumor-infiltrating lymphocytes (TILs) and evaluate the prognostic value of PD-L1 and TILs in Chinese triple-negative breast cancer (TNBC) patients with different molecular subtype METHODS: This retrospective study was conducted at 2020. Specifically, the pre-chemotherapy clinical data and non-stained tissue blocks of 465 TNBC patients visited the Fudan University Shanghai Cancer Center (FUSCC) between 2008 and 2014 were collected, with their blocks sliced and stained using PD-L1(SP142), and the outcome of subsequent chemotherapy obtained in 2020. The relapse-free survival (RFS) of the study population was calculated.

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Background: Integrative multiomics can elucidate pulmonary arterial hypertension (PAH) pathobiology, but procuring human PAH lung samples is rare.

Methods: We leveraged transcriptomic profiling and deep phenotyping of the largest multicenter PAH lung biobank to date (96 disease and 52 control) by integration with clinicopathologic data, genome-wide association studies, Bayesian regulatory networks, single-cell transcriptomics, and pharmacotranscriptomics.

Results: We identified 2 potentially protective gene network modules associated with vascular cells, and we validated , coding for asporin, as a key hub gene that is upregulated as a compensatory response to counteract PAH.

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