Publications by authors named "Xuechao Liu"

Article Synopsis
  • PROTAC is a novel therapeutic approach gaining traction in pharmaceuticals, particularly for targeting proteins like estrogen receptors in breast cancer treatment.
  • ARV-471 is an orally bioavailable PROTAC that effectively degrades estrogen receptors by promoting their degradation through the proteasome.
  • A sensitive liquid chromatography method was developed to measure ARV-471 in rat plasma, demonstrating robust validation and revealing key metabolic pathways, including hydrolysis and glucuronidation, with four metabolites identified.
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Introduction: It was intended to research the level changes and clinical significance of interleukin (IL)-10, transforming growth factor β1 (TGF-β1), and CD4+CD25 cytokines in paediatric allergic rhinitis (AR) accompanied with allergic asthma (AA).

Material And Methods: Eighty children of AA with AR receiving immunotherapy indications were included as the experimental group (EG), while another 40 healthy children in the same period were selected as the control group (CG). IL-10, TGF-β1, and CD4+CD25 levels in cells of the two groups before and after treatment were compared and analysed.

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This paper investigates the variation of lung tissue dielectric properties with tidal volume under conditions to provide reliable and valid a priori information for techniques such as microwave imaging. In this study, the dielectric properties of the lung tissue of 30 rabbits were measured using the open-end coaxial probe method in the frequency band of 100 MHz to 1 GHz, and 6 different sets of tidal volumes (30, 40, 50, 60, 70, 80 mL) were set up to study the trends of the dielectric properties, and the data at 2 specific frequency points (433 and 915 MHz) were analyzed statistically. It was found that the dielectric coefficient and conductivity of lung tissue tended to decrease with increasing tidal volume in the frequency range of 100 MHz to 1 GHz, and the differences in the dielectric properties of lung tissue for the 6 groups of tidal volumes at 2 specific frequency points were statistically significant.

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  • Researchers have observed atomic-level interlayer sliding dynamics and polarization reversal in yttrium-doped γ-InSe, a van der Waals layered material.
  • The study reveals real-time sliding occurring in a 1/3-unit cell along the armchair direction, facilitated by low-energy electron-beam illumination, indicating low switching barriers.
  • The findings introduce a new sliding mechanism and contribute significantly to the understanding of sliding ferroelectrics for applications in non-volatile storage and ferroelectric field-effect transistors.
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Thymic stromal lymphopoietin is a key cytokine involved in the pathogenesis of asthma and other allergic diseases. Targeting TSLP and its signaling pathways is increasingly recognized as an effective strategy for asthma treatment. This study focused on enhancing the affinity of the T6 antibody, which specifically targets TSLP, by integrating computational and experimental methods.

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Multi-frequency electrical impedance tomography (mfEIT) offers a nondestructive imaging technology that reconstructs the distribution of electrical characteristics within a subject based on the impedance spectral differences among biological tissues. However, the technology faces challenges in imaging multi-class lesion targets when the conductivity of background tissues is frequency-dependent. To address these issues, we propose a spatial-frequency cross-fusion network (SFCF-Net) imaging algorithm, built on a multi-path fusion structure.

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The heterogeneous nature of tumors presents a considerable obstacle in addressing imatinib resistance in advanced cases of gastrointestinal stromal tumors (GIST). To address this issue, we conducted single-cell RNA-sequencing in primary tumors as well as peritoneal and liver metastases from patients diagnosed with locally advanced or advanced GIST. Single-cell transcriptomic signatures of tumor microenvironment (TME) were analyzed.

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The. inertial migration of both spherical and oblate particles within an equilateral triangular channel is studied numerically. Our study primarily focuses on the effects of fluid inertia, quantified by the Reynolds number (Re) and particle size (β).

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A cerebral contrast-enhanced electrical impedance tomography perfusion method is developed for acute ischemic stroke during intravenous thrombolytic therapy. Several clinical contrast agents with stable impedance characteristics and high-conductivity contrast were screened experimentally as electrical impedance contrast agent candidates. The electrical impedance tomography perfusion method was tested on rabbits with focal cerebral infarction, and its capability for early detection was verified based on perfusion images.

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  • The study aimed to evaluate factors affecting the survival of elderly patients with locally advanced gastric cancer (LAGC) and to create nomograms for predicting survival outcomes.
  • Researchers analyzed data from multiple sources, identifying nine independent prognostic factors related to overall and cancer-specific survival, and developed two nomogram models to predict outcomes based on these factors.
  • Results showed a significant improvement in survival predictions using the nomograms compared to traditional TNM staging, indicating their potential clinical utility for guiding treatment decisions.
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Electrical impedance tomography (EIT) is a noninvasive and radiation-free imaging method. As a "soft-field" imaging technique, in EIT, the target signal in the center of the measured field is frequently swamped by the target signal at the edge, which restricts its further application. To alleviate this problem, this study presents an enhanced encoder-decoder (EED) method with an atrous spatial pyramid pooling (ASPP) module.

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Background: Proximal gastrectomy with gastric tubular reconstruction is a surgical procedure that can preserve function in patients with proximal gastric cancer. However, whether gastric tubular reconstruction with proximal gastrectomy has certain advantage in some aspects over total gastrectomy is controversial. To evaluate the benefit of gastric tubular reconstruction after proximal gastrectomy, we compared gastric tubular reconstruction with total gastrectomy for proximal gastric cancer.

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  • - The study aimed to compare the effectiveness of robot-assisted versus laparoscopic-assisted surgery in improving lymph node dissection and patients' quality of life after radical total gastrectomy for upper third gastric cancer.
  • - A total of 409 patients were analyzed, and after matching for various factors, 61 were in the robotic group and 122 in the laparoscopic group, revealing that the robotic surgery group had a significantly higher number of lymph nodes dissected (37.3 vs. 32.8) and reported better physical and social function scores post-surgery.
  • - The findings indicated that while the robotic group had better outcomes in terms of lymph node retrieval and quality of life at 6 and 12 months after surgery,
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  • * The application of deep learning in EIT image reconstruction has grown significantly, focusing on single network approaches, combining deep learning with traditional methods, and using hybrid networks.
  • * Future challenges in EIT image reconstruction involve optimizing datasets, improving network structures, and integrating multimodal deep learning, which could lead to enhanced diagnostic systems.
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Electrical impedance tomography (EIT) is low-cost and noninvasive and has the potential for real-time imaging and bedside monitoring of brain injury. However, brain injury monitoring by EIT imaging suffers from image noise (IN) and resolution problems, causing blurred reconstructions. To address these problems, a least absolute shrinkage and selection operator model is built, and a fast iterative shrinkage-thresholding algorithm with continuation (FISTA-C) is proposed.

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Fish schools and their potential hydrodynamic advantages are intriguing problems and many underlying mechanisms are unclear due to the complexity of the system, especially for large schools. Here large schools containing four, six, and eight self-propelled foils in a side-by-side configuration are numerically studied. The effect of different combinations out of phase and in phase between two neighboring foils is studied.

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Unlabelled: Cancer immunotherapy restores or enhances the effector function of T cells in the tumor microenvironment, but the efficacy of immunotherapy has been hindered by therapeutic resistance. Here, we identify the proto-oncogene serine/threonine protein kinase PIM2 as a novel negative feedback regulator of IFNγ-elicited tumor inflammation, thus endowing cancer cells with aggressive features. Mechanistically, IL1β derived from IFNγ-polarized tumor macrophages triggered PIM2 expression in cancer cells via the p38 MAPK/Erk and NF-κB signaling pathways.

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Unlike early clear cell renal cell carcinoma (ccRCC), locally advanced and metastatic ccRCC present poor treatment outcomes and prognosis. As immune checkpoint inhibitors have achieved favorable results in the adjuvant treatment of metastatic ccRCC, we aimed to investigate the immunogenomic landscape during ccRCC progression and its potential impact on immunotherapy and prognosis. Using multi-omics and immunotherapy ccRCC datasets, an integrated analysis was performed to identify genomic alterations, immune microenvironment features, and related biological processes during ccRCC progression and evaluate their relevance to immunotherapy response and prognosis.

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Article Synopsis
  • Fish groups form different swimming formations spontaneously, which were analyzed through numerical studies of self-propelled foils using deep reinforcement learning (DRL) for locomotion control.
  • Two DRL strategies were tested: one where only the following fish benefits from hydrodynamics and another where all group members share the benefit.
  • The study identifies various collective swimming patterns that emerge, such as staggered-following and compact modes, and emphasizes the importance of hydrodynamic force and time sequence information for enhancing collective swimming performance.
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Background: Adjuvant imatinib therapy has been shown to improve overall survival (OS) of gastrointestinal stromal tumor (GIST) significantly. Few nomograms combining the use of adjuvant imatinib and clinicopathological characteristics estimate the outcome of patients. We aimed to establish a more comprehensive nomogram for predicting OS in patients with GIST.

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. Traditional magnetic induction tomography (MIT) algorithms have problems in reconstruction, such as large area error (AE), blurred boundaries of reconstructed targets, and considerable image noise (IN). As the size and boundary of a lesion greatly affect the treatment plan, more accurate algorithms are necessary to meet clinical needs.

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Immune checkpoint inhibitors (ICIs) are currently a first-line treatment option for clear cell renal cell carcinoma (ccRCC). However, recent clinical studies have shown that a large number of patients do not respond to ICIs. Moreover, only a few patients achieve a stable and durable response even with combination therapy based on ICIs.

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BACKGROUND Enhanced Recovery After Surgery (ERAS) programs can optimize clinical outcomes and have been widely used across multiple specialties, but a personalized prediction model involving ERAS for the prognosis of gastric cancer is lacking. MATERIAL AND METHODS We retrospectively collected clinical data on 725 gastric cancer patients within ERAS who underwent curative gastric resection in the Affiliated Hospital of Qingdao University from 2007 to 2014. Kaplan-Meier method, log-rank test, and Cox proportional risk model were used to determine the independent prognostic factors of patients.

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Heat capacity is an important and fundamental thermodynamic parameter in materials. The temperature-dependent heat capacity (HC) was studied extensively. Here, the universal correlation between the experimental heat capacity and the coefficient of thermal expansion β in reference solids at high temperatures: = + β ( and : constants) and the volume-dependent heat capacity in the temperature range from several Kelvins to melting temperatures is quantitatively determined: = β, and a new phenomenological model of the experimental heat capacity below the melting temperature in the volume dimension is established: = + (the non-volume-dependent heat capacity = , : Debye function).

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