Publications by authors named "Pei Su"

Introduction: Perceived groove, a complex and integrated musical characteristic, is considered a core factor in inducing synchronization between movement and music. This study aimed to employ functional near-infrared spectroscopy (fNIRS) to explore the effective connectivity (EC) changes among brain regions during cycling activities under different perceived groove conditions.

Methods: In a randomized crossover design, 18 university students performed 3-min cycling tasks under high (HG) and low (LG) perceived groove music conditions.

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Individual ion mass spectrometry (IMS) is the Orbitrap-based extension of the niche mass spectrometry technique known as charge detection mass spectrometry (CDMS). While traditional CDMS analysis is performed on in-house-built instruments such as the electrostatic linear ion trap, IMS extends CDMS analysis to Orbitrap analyzers, allowing charge detection analysis to be available to the scientific community at large. IMS simultaneously measures the mass-to-charge ratios (m/z) and charges (z) of hundreds to thousands of individual ions within one acquisition event, creating a spectral output directly into the mass domain without the need for further spectral deconvolution.

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The shuttle effect of lithium polysulfides (LiPSs) and sluggish sulfur conversion kinetics have seriously hindered the commercial application of lithium-sulfur (Li-S) batteries. Currently, the adsorption and catalysis processes are emphasized; however, the diffusion process is often neglected. The delayed diffusion of the adsorbed LiPSs significantly reduce battery performance.

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Article Synopsis
  • Encapsulating noble metal species in zeolites can improve the performance and efficiency of catalysts used in thermal and environmental reactions, particularly with Ru which is a cost-effective alternative.
  • The study developed a method combining hydrothermal processes and stepwise calcination to stabilize Ru clusters within MFI-type zeolite, leveraging special sites for better integration.
  • Results indicate that the unique environment created by the Ru clusters and MFI enhances catalytic activity for alkane oxidation even at low temperatures, while maintaining stability up to 1000°C, thus providing important insights for future catalyst design.
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Background: Aplastic anemia (AA) is a bone marrow failure disease for which the means of assessing and predicting the therapeutic effectiveness are still relatively limited. Thrombocytopenia is often the earliest and most severe symptom in patients newly diagnosed with AA. While clinical consideration is usually given to the quantitative changes in platelets during treatment, there is little focus on the resolution of the molecular characteristics of platelets in AA.

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Because of the high theoretical energy density of 2600 Wh kg, lithium-sulfur batteries (LSBs) are anticipated to be among the next generation of high-energy-density storage technologies. However, the practical application of LSBs has been severely hampered by the significant shuttle effect and slow redox kinetics of polysulfides (LiPSs). To address the above problems, in this paper, the concept of quantum dots (QDs) was introduced to design and synthesize MoN QD-modified N-doped graphene nanosheets (marked as MoN-QDs@NG), which were used as separator modification materials for LSBs.

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Mass spectrometry imaging (MSI) is a powerful technique for label-free spatial mapping of multiple classes of biomolecules in tissue sections. However, differences in desorption and ionization efficiency of different classes of molecules make it challenging to simultaneously map biomolecules at each omics layer in the same tissue sample. Herein, we present a correlative imaging method using nanospray desorption electrospray ionization (nano-DESI) MSI, which enables the spatial mapping of lipids, metabolites, peptides, and proteins with cellular-level spatial resolution in a single tissue section.

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Traditional reduction or oxidation processes generating one-component free radicals face challenges in deep dechlorination and mineralization of chlorophenols from wastewater. Herein, an efficient electrocatalytic process has been developed, which couples atomic H* reduction with reactive oxidation species (OH and O) oxidation on a bifunctional cathode for 4 -chlorophenol (4 -CP) removal. The N - doped carbon nanotubes encapsulated manganese nanoparticles was fabricated as cathode, which could generate atomic H* , initiating nucleophilic hydrodechlorination in presence of confined MnO sites.

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Harnessing flexible host cavities opens opportunities for the design of novel supramolecular architectures that accommodate nanosized guests. This research examines unprecedented gas-phase structures of Keggin-type polyoxometalate PWO (WPOM) and cyclodextrins (X-CD, X = α, β, γ, δ, ε, ζ) including previously unexplored large, flexible CDs. Using ion mobility spectrometry coupled to mass spectrometry (IM-MS) in conjunction with molecular dynamics (MD) simulations, we provide first insights into the binding modes between WPOM and larger CD hosts as isolated structures.

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Scarcity of high-quality organs, suboptimal organ quality assessment, unsatisfactory pre-implantation procedures, and poor long-term organ and patient survival are the main challenges currently faced by the solid organ transplant (SOT) field. New biomarkers for assessing graft quality pre-implantation, detecting, and predicting graft injury, rejection, dysfunction, and survival are critical to provide clinicians with invaluable prediction tools and guidance for personalized patients' treatment. Additionally, new therapeutic targets are also needed to reduce injury and rejection and improve transplant outcomes.

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Objective: We investigated the efficacy of metastatic lesion radiotherapy (MLRT) in patients with metastatic nasopharyngeal carcinoma (mNPC).

Materials And Methods: Patients with mNPC from three institutions were included in this study. Propensity score matching (PSM) was employed to ensure comparability between patient groups.

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Barnacles are the only sessile lineages among crustaceans, and their sessile life begins with the settlement of swimming larvae (cyprids) and the formation of protective shells. These processes are crucial for adaptation to a sessile lifestyle, but the underlying molecular mechanisms remain poorly understood. While investigating these mechanisms in the acorn barnacle, Amphibalanus amphitrite, we discovered a new gene, bcs-6, which is involved in the energy metabolism of cyprid settlement and originated from a transposon by acquiring the promoter and cis-regulatory element.

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Article Synopsis
  • The study evaluates different treatment methods for stage T4b esophageal cancer by analyzing patient data from 2000 to 2020.
  • A total of 482 patients were included, with various treatments showing differing cancer-specific survival (CSS) and overall survival (OS) rates, notably better outcomes for those who underwent surgery.
  • The findings indicate that esophagectomy leads to significantly improved survival compared to chemoradiotherapy in these patients.
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Objective: To identify subclinical left ventricle dysfunction (LVD) in obese rats by speckle-tracking echocardiography, and to evaluate the effects of 12-week Moderate-Intensity Continuous Training (MICT) or High-Intensity Interval Training (HIIT) on LV geometry, histology and function in obese rats.

Methods: Eighteen male standard or obese Sprague-Dawley rats were randomly divided into the Control group, the MICT group, and the HIIT group. Exercise interventions were conducted for 12 weeks, with equal total load and increased intensity gradient.

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  • A study analyzed survival outcomes in 445 patients with pT3N0M0 esophageal cancer who underwent surgery without prior chemoradiotherapy, using data from 2000 to 2020.
  • Among patients with squamous cell carcinoma, various adjuvant treatments (chemoradiotherapy, chemotherapy, and radiotherapy) did not show significant survival benefits compared to surgery alone.
  • Conversely, for those with adenocarcinoma, both adjuvant chemoradiotherapy and chemotherapy significantly improved overall survival compared to surgery alone, highlighting the varying effectiveness of treatments based on cancer type.
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  • The study assessed the effectiveness of combining immune checkpoint inhibitors (ICIs) with concurrent chemoradiotherapy (CCRT) versus using CCRT alone for treating locally advanced esophageal squamous cell carcinoma.
  • A total of 101 patients participated, with results showing that while the combination therapy had a higher complete response rate (11.6% vs. 1.7%), it did not significantly improve progression-free survival or overall survival compared to CCRT alone.
  • The findings also revealed differences in side effects, with CCRT alone causing more leukopenia, while the combination therapy led to a higher incidence of pneumonitis, highlighting the need for more research on these treatment options.
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  • - Single cell Proteoform Imaging Mass Spectrometry is a new technique that allows for direct solvent extraction and mass spectrometry detection of intact proteins from individual cells placed on glass slides.
  • - This method focuses on analyzing whole proteoforms through individual ion mass spectrometry, which enhances the scalability of single cell proteomics.
  • - The platform significantly improves the throughput and cell processing rates in single cell proteomics, while also providing better coverage of protein composition.
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  • - The study aimed to evaluate various treatment approaches and survival outcomes for patients with stage T1-2N0M0 small cell lung cancer who had surgery, using data from 2000 to 2020.
  • - A total of 190 patients were analyzed, with treatment options including surgery alone, surgery with chemotherapy, and surgery with chemoradiotherapy, finding that surgery + chemotherapy significantly improved overall survival (OS) compared to surgery alone.
  • - The results showed median cancer-specific survival (CSS) was undetermined for surgery alone, while it was 123 and 113 months for the other groups, and highlighted that while chemotherapy benefited OS, adding radiotherapy did not enhance survival outcomes.
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Although lithium-sulfur (Li-S) batteries have broad market prospects due to their high theoretical energy density and potential cost-effectiveness, the practical applications still face serious shuttle effects of polysulfides (LiPSs) and slow redox reactions. Therefore, in this paper, cobalt nitride nanoparticles encapsulated in nitrogen-doped carbon nanotube (CoN@NCNT) are prepared as a functional layer for the separator of high-performance Li-S batteries. Carbon nanotubes with large specific surface areas not only promote the transport of ions and electrons but also weaken the migration of LiPSs and confine the dissolution of LiPSs in electrolytes.

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Yolk-shell-structured transition metal sulfides (TMSs)/carbon nanocomposites are highly desirable in advanced energy storage system, such as sodium-ion batteries (SIBs) and supercapacitors (SCs). Nevertheless, practical applications are still prevented by the loose attachment of TMSs with carbon caused by conversion stress, the aggregation of TMSs nanoparticles and the sluggish ion transport caused by high crystallinity of carbon. Here, the disperse hollow CoS nanoparticles encapsulated into N,S-codoped carbon nanotubes (CNTs) with poor crystallinity through CoNC bond was synthesized (CS-NSCNT) to overcome the above obstacles.

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The embryonic mesoderm comprises heterogeneous cell subpopulations with distinct lineage biases. It is unclear whether a bias for the human hematopoietic lineage emerges at this early developmental stage. In this study, we integrated single-cell transcriptomic analyses of human mesoderm cells from embryonic stem cells and embryos, enabling us to identify and define the molecular features of human hematopoietic mesoderm (HM) cells biased towards hematopoietic lineages.

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The molecular identification of tissue proteoforms by top-down mass spectrometry (TDMS) is significantly limited by throughput and dynamic range. We introduce AutoPiMS, a single-ion MS based multiplexed workflow for top-down tandem MS (MS) directly from tissue microenvironments in a semi-automated manner. AutoPiMS directly off human ovarian cancer sections allowed for MS identification of 73 proteoforms up to 54 kDa at a rate of <1 min per proteoform.

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Nonalcoholic fatty liver disease (NAFLD) is one of the most common causes of chronic liver disease worldwide. NAFLD is prevalent in about 30% of people worldwide. The lack of physical activity is considered as one of the risks for NAFLD, and approximately one-third of NAFLD patients hardly engage in physical activity.

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  • The study analyzed over 1,000 blood samples from patients infected with the Omicron variant of SARS-CoV-2 to understand the host's immune response using various advanced techniques, known as multi-omics.
  • Researchers found that Omicron infections led to increased antiviral activity in platelets and changes in how these cells interacted with other immune cells, highlighting a unique immune response.
  • The study also identified a decrease in B cell activity and antibody production in patients who tested positive again for the virus, while a machine learning model was developed to predict the likelihood of re-positivity in these patients.
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