Publications by authors named "Beichen Liu"

Background: Lymphocyte migration plays a key role in the development of acute graft-versus-host disease (aGVHD). Blocking lymphocyte migration by targeting chemokine receptors, such as CXCR3, may be a promising strategy for preventing and treating aGVHD. Our previous studies have shown that short-term CXCR3 antagonist treatment combined with cyclosporine A alleviated aGVHD.

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Internet Gaming Disorder (IGD) is a behavioural addiction characterised by excessive exposure to addictive stimuli, resulting in reduced sensitivity of the brain's reward system towards everyday rewards. Online game addiction is prevalent among adolescents; however, it remains unclear if there are variations in reward processing patterns among adolescents with online game addiction. We compared differences in sensitivity to two types of rewards between patients with IGD and patients with Recreational Game Use (RGU) using the Monetary Incentive Delay (MID) paradigm and the Social Incentive Delay (SID) paradigm (Experiment 1).

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Electric double layers are crucial to energy storage and electrocatalytic device performance. While double layer formation originates in electrostatic interactions, electric double layer properties are governed by a balance of both electrostatic and entropic driving forces. Favorable ion-surface electrostatic interactions attract counterions to charged surfaces to compensate, or "screen," potentials, but the confinement of these same ions from a bulk reservoir to the interface incurs an entropic penalty.

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Background: Viral nucleic acid testing of intraocular fluid using polymerase chain reaction (PCR) is a major laboratory examination in the diagnosis of acute retinal necrosis (ARN). Importantly, false negative PCR results may occur in several special situations. We reported a case of ARN with a negative PCR result in the aqueous humour in the very early stages of disease.

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To study the changes in human epidermal growth factor receptor 2 (HER2) expression in patients with HER2-positive breast cancer before and after neoadjuvant treatment. The clinicopathologic data of 499 patients with HER2-positive breast cancer who completed neoadjuvant treatment and surgery at the Fourth Hospital of Hebei Medical University from 2018 to 2021 were retrospectively analyzed. According to the new adjuvant regimen, 298 patients were divided into the trastuzumab + pertuzumab combined chemotherapy group (dual target group), and 201 patients were divided into the trastuzumab combined chemotherapy group (single target group).

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Chronic tissue fibrosis is a common pathological feature of connective tissue diseases and malignant tumors, and its prevention has been a major focus of relevant research.However, the details of the mechanism of action of tissue-colonizing immune cells in fibroblast migration are unclear. In this study, connective tissue disease tissue specimens and solid tumor specimens were selected to observe the relationship between mast cells and interstitial fibrosis and the expression characteristics of mast cells.

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Objective: This research summarizes and analyzes the effects of polishing of the anterior capsule (PAC) on visual function, maintenance of effective lens position (ELP), and postoperative complications in various studies, so as to determine whether PAC can be used to improve the surgical outcome of cataracts.

Methods: The literature related to PAC published before June 2022 was searched in PubMed, Web of Science, EMBASE, Cochrane, Google, Wanfang, Weipu and CNKI databases. Changes in visual function [uncorrected visual acuity (UCVA) and spherical equivalent refraction (SER)], effective lens position (ELP), and postoperative complications [anterior capsular opacification (ACO) and posterior capsular opacification (PCO)] in the PAC intervention group were summarized and analyzed, and the standardized mean difference (SMD) or odds ratio (OR) with 95% CI was calculated by Review Manager 5.

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Protein tyrosine phosphatases non-receptor 13 (PTPN13) could be a potential biomarker in breast cancer (BRCA), but its genetic variation and biological significance in BRCA remain undefined. Hereon, we comprehensively investigated the clinical implication of PTPN13 expression/gene mutation in BRCA. In our study, a total of 14 cases of triple-negative breast cancers (TNBC) treated with neoadjuvant therapy were enrolled, and post-operation TNBC tissues were collected for next-generation sequencing (NGS) analysis (422 genes including PTPN13).

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Two-dimensional (2D) hybrid organic-inorganic perovskites (HOIPs) have gained much research interest nowadays due to their outstanding optoelectronic properties; however, the properties of the Rashba effect in 2D HOIPs have not been fully interpreted. In this work, a detailed thickness dependent structural distortion along with the Rashba splitting energy were investigated. Three types of HOIPs, 2D MAPbCl, 2D MAPbBr and 2D MAPbI, were adopted to compare the effect of halogens; and three surface ligands, BA, -BA and PEA, were adopted to explore the effect of ligands.

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Background: Increasing evidence has convincingly shown that abnormal pre-mRNA splicing is implicated in the development of most human malignancies. Serine/arginine-rich protein kinase 1 (SRPK1), a key splicing regulator, is reported to be overexpressed in leukemia and other cancer types, which suggests the therapeutic potential of targeting SRPK1.

Methods: SRPK1 expression was measured in 41 ENKTL patients by immunohistochemistry and mRNA expression was analyzed by qRT‒PCR.

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Postnatal neurogenesis provides an opportunity to understand how newborn neurons integrate into circuits to restore function. Newborn olfactory sensory neurons (OSNs) wire into highly organized olfactory bulb (OB) circuits throughout life, enabling lifelong plasticity and regeneration. Immature OSNs form functional synapses capable of evoking firing in OB projection neurons but what contribution, if any, they make to odor processing is unknown.

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Background: Forkhead Box Protein 3 (FOXP3), as an essential marker of regulatory T cell (Treg) development, is reportedly overexpressed in invasive breast carcinoma (BRCA) and could be a potential prognostic factor for BRCA. However, the biological function of FOXP3 in BRCA is still unclear. In this study, we comprehensively explored the expression landscape of FOXP3 and its prognostic value in BRCA.

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Background: Fibroblastic reticular cells (FRCs) are a type of stromal cells located in the T zone in secondary lymphoid organs. Previous studies showed that FRCs possess the potential to promote myeloid differentiation. We aim to investigate whether FRCs in lymph nodes (LNs) could induce tolerogenic macrophage generation and further influence T-cell immunity at an early stage of allogeneic hematopoietic stem cell transplantation (allo-HSCT).

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Background: Breast cancer is the most common malignant tumor among all female tumors. It seriously affects the health and lives of patients, and poses a significant economic burden. The study of the molecular mechanisms of breast cancer occurrence, proliferation and growth and development is of great clinical significance.

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The all-inorganic perovskite CsPbBr has been capturing extensive attention due to its high quantum yield in luminescence devices and relatively high stability. Its luminescence is dominated by free exciton (FE) recombination but additional emission peaks were also commonly observed. In this work, a CsPbBr microcrystal sample in the orthorhombic phase was prepared by the chemical vapor deposition method.

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RecurIndex, a multigene profiling assay, can predict the risk of local recurrence and distant metastasis in female breast cancer (FBC), but its role in male breast cancer (MBC) remains unclear. In this study, the clinicopathological data of 43 consecutive MBC patients undergoing surgeries between 2009 and 2018 were retrospectively analysed. Their paraffin-embedded tissue sections were examined by RecurIndex test which comprised 2 models: recurrence index for local recurrence (RI-LR) and recurrence index for distant recurrence (RI-DR).

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Interleukin-22 (IL-22), secreted by tumor infiltrated lymphocytes, is identified as a tumor-promoting factor in certain cancers, which was secreted by tumor infiltrated lymphocytes. However, the role of IL-22 in breast cancer remains conflicting. In this study, we assessed the expression of IL-22, IL-22 receptor 1 (IL-22R1), CD4, CD8, FOXP3, and CD68 in breast cancer by immunohistochemistry.

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Background: To explore the potential advantage of preoperative anti-angiogenosis therapy, we implemented a study to evaluate the efficacy of recombinant human endostatin (EN) in combination with neoadjuvant chemotherapy in the treatment of stage III breast cancer.

Patients And Methods: Eighty-seven patients were randomized to neoadjuvant TEC (docetaxel, epirubicin, and cyclophosphamide) or to EN+TEC, followed by surgery. The primary endpoint was the objective response rate (ORR).

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AMG 487 is the targeted blocker of chemokine receptor CXCR3 and improves inflammatory symptoms by blocking the inflammatory cycle. Here we investigated whether AMG 487 affects dendritic cell (DC) biology and function. The expression of co-stimulatory markers on DCs was reduced, indicating the semi-mature state of DC when AMG 487 was added throughout the in vitro differentiation period.

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Revegetation on sandy land has attracted worldwide attention, especially on the extremely fragile alpine eco-region of the Tibetan Plateau. However, the effectiveness of revegetation and its controlling factors have rarely been reported. We collected plant growths and species composition from seven field sites in 2011 and conducted a follow-up random investigation in 2016.

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The cancer stem cell (CSC) paradigm posits that specific cells within a tumor, so-called CSC-like cells, have differing levels of tumorigenicity and chemoresistance. Original studies of CSCs identified them in human cancers and utilized mouse xenograft models to define the cancer initiating properties of these cells, thereby hampering the understanding of how immunity could affect CSCs. Indeed, few studies have characterized CSCs in the context of cancer immunoediting, and it is currently not clear how immunity could impact on the levels or stem-like behavior of CSCs.

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Cells undergoing xenobiotic or oxidative stress activate the transcription factor nuclear factor erythroid-derived 2-like 2 (Nrf2), which initiates an intrinsic "stress surveillance" pathway. We recently found that the cytokine IL-17D effects a form of extrinsic stress surveillance by inducing antitumor immunity, but how IL-17D is regulated remains unknown. Here, we show that Nrf2 induced IL-17D in cancer cell lines.

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Parallel streamline placement is still an open problem in flow visualization. In this paper, we propose an innovative method to place streamlines in parallel for 2D flow fields. This method is based on our proposed concept of local tracing areas (LTAs).

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Objective: To approach the role of tumor necrosis factor-alpha (TNF-alpha) and tumor necrosis factor receptor II (TNFR II) gene polymorphisms in genetic susceptibility to silicosis and their interaction with silica-dust exposure.

Methods: Two hundred and fifty-nine cases of silicosis and three hundred and forty-one silica-dust exposure workers (control) were selected, and the cases of silicosis were divided into three subgroups based on the various stages of I, II and III. Exposure history, pneumoconiosis history and past history of each subject were obtained by questionnaire.

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Synopsis of recent research by authors named "Beichen Liu"

  • - Beichen Liu's recent research spans multiple disciplines including immunology, psychology, oncology, and materials science, focusing on mechanisms underlying diseases and treatments, particularly in areas like graft-versus-host disease, Internet Gaming Disorder, and breast cancer outcomes.
  • - A significant finding includes the long-term efficacy of the CXCR3 antagonist AMG487 in preventing acute graft-versus-host disease by inhibiting T cell activation, which highlights potential therapeutic strategies for organ transplant complications.
  • - Liu's work also emphasizes the relevance of reward sensitivity in adolescents with Internet Gaming Disorder, and the implications of protein tyrosine phosphatase PTPN13 in breast cancer, suggesting novel biomarkers and treatment pathways for varied clinical conditions.