Publications by authors named "Chen Xuedan"

Article Synopsis
  • - High-frequency brain activity during wakefulness leads to the growth of dendritic spines and axonal terminals, which are important for cognitive functions, but their excess presence can be problematic if they don't form effective connections.
  • - Sleep plays a key role in pruning unnecessary neural structures to maintain brain health, but the specific processes involved in this pruning are not well understood.
  • - The study shows that melatonin type 3 receptors (MTRs) in the medial entorhinal cortex activate during sleep to shrink dendritic spines, which is essential for learning spatial memory; disrupting this process can hinder spatial memory acquisition without affecting the memory for objects.
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Artificial sensory afferent nerves that emulate receptor nanochannel perception and synaptic ionic information processing in chemical environments are highly desirable for bioelectronics. However, challenges persist in achieving life-like nanoscale conformal contact, agile multimodal sensing response, and synaptic feedback with ions. Here, a precisely tuned phase transition poly(-isopropylacrylamide) (PNIPAM) hydrogel is introduced through the water molecule reservoir strategy.

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Long noncoding RNA (lncRNA) cancer susceptibility 9 (CASC9) has been found to be overexpressed and functions as an oncogene in many cancer types. We investigated the molecular mechanism underlying CASC9 overexpression in esophageal squamous cell carcinoma (ESCC). Transcripts containing exons 2 and 6 and exons 4 and 6 showed the highest CASC9 expression levels in ESCC, no transcripts were detected in the normal esophageal epithelial Het1A cell line.

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Flexible electro-optical dual-mode sensor fibers with capability of the perceiving and converting mechanical stimuli into digital-visual signals show good prospects in smart human-machine interaction interfaces. However, heavy mass, low stretchability, and lack of non-contact sensing function seriously impede their practical application in wearable electronics. To address these challenges, a stretchable and self-powered mechanoluminescent triboelectric nanogenerator fiber (MLTENGF) based on lightweight carbon nanotube fiber is successfully constructed.

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Article Synopsis
  • Medical genetics is a foundational course that focuses on the relationship between genetic factors and the diagnosis, prevention, and treatment of diseases, emphasizing the need for strong analytical skills in students.
  • Traditional teaching methods, like cramming, are ineffective; instead, case-based discussions encourage active learning where students prepare and discuss real clinical cases.
  • Since 2013, the implementation of case-based learning has created a teaching case base organized into 8 chapters, enhancing students' understanding of important genetic concepts and increasing their engagement and innovative thinking.
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Porous metals are widely used in filtration and separation, flame retardant explosion-proof, biomedical application, etc. Compared with its corresponding dense metal, the presence of porous structures also leads to different corrosive performances in porous metal. Some studies have utilized the weight loss method, electrochemical impedance to evaluate porous metal corrosion behavior; however, the influence of pore structure on metal corrosion is still ambiguous, and present methods used for analyses of porous metal corrosion are statistical averages of the corrosion behavior of the entire porous material, which cannot accurately reflect the corrosion behavior inside the pores.

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Fiber-shaped photodetectors (FPDs) with multidirectional light absorption properties offer exciting opportunities for intelligent optoelectronic textiles. However, achieving FPDs capable of working in ampule environments, especially with high sensitivity, remains a fundamental challenge. Here, quasi-solid-state twisted-fiber photoelectrochemical photodetectors (FPPDs) consisting of photoanode, gel electrolyte, and counter electrode are successfully assembled.

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Lithium-rich antiperovskites (LiRAPs) hold great promise to be the choice of solid-state electrolytes (SSEs) owing to their high ionic conductivity, low activation energy, and low cost. However, processing sheet-type solid-state Li metal batteries (SSLiB) with LiRAPs remains challenging due to the lack of robust techniques for battery processing. Herein, we propose a scalable slurry-based procedure to prepare a flexible composite electrolyte (CPE), in which LiRAP (e.

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Objective: To evaluate the effectiveness of botulinum toxin A (BTX-A) in the treatment of hemiplegic shoulder pain.

Data Sources: PubMed, EMBASE, Elsevier, Springer, Cochrane Library, Physiotherapy Evidence Database, CNKI, and VIP were researched from the earliest records to September 1, 2020.

Study Selection: Randomized controlled trials that compared shoulder BTX-A injections vs a control intervention in patients with a history of hemiplegic shoulder pain after stroke were selected.

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Scope: Choline is an essential nutrient and a primary dietary source of methyl groups that are vital for brain development. Low choline (LC) in the maternal diet during pregnancy alters neurogenesis in the fetal brain and leads to low cognitive performance. However, the key signaling pathways that are sensitive to maternal choline supply during neural progenitor cell (NPC) development and the epigenetic mechanisms by which choline availability regulates gene expression are unclear.

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Various nanoporous particles, nanofibers have been employed for adsorptive removal of dyes from wastewater. However, these nanomaterials are difficult in separation from solution, generally by centrifugation or filtration. These processes are tedious and will limit the upscale applications.

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Angelicin is an active compound isolated from the Chinese herb , which has been reported to exert antitumor effects by inhibiting malignant behaviors in several types of tumor, including proliferation, colony formation, migration and invasion. However, the effects of angelicin on human cervical cancer cells is yet to be elucidated. The present study evaluated the antitumor effects of angelicin on cervical cancer cells.

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Scope: Alzheimer's disease (AD) is a detrimental neurodegenerative disease and has no known effective treatment. The essential nutrient choline potentially plays an important role in cognition. Perinatal choline supplementation (CS) is critical for memory performance.

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An increasing number of long noncoding RNAs (lncRNAs) have been discovered, and dysregulation of lncRNAs plays critical roles in tumorigenesis and tumor progression. In this study, we identified a novel lncRNA LINC01980, located in both the cytoplasm and nucleus, which was significantly upregulated in esophageal squamous cell carcinoma (ESCC) tissues through microarray profiling. Further analysis revealed that LINC01980 overexpression was positively correlated with deeper invasion of cancer, positive lymph node metastasis, and advanced TNM stage.

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To advocate environment friendly detection idea, we adopted the green chemical method to synthesis the 1-(2 amino ethyl) piperidine functionalized polyacrylonitrile fiber (APF) and the chromogenic fiber 4-(2-pyridylazo) resorcinol (APF-PAR). The APF has high adsorption selectivity of Hg and Cu, and the change of structure, surface morphology and thermo-stability before and after adsorption have been characterized by the infrared spectra, scanning electron microscope and thermogravimetric analysis. The APF achieved the adsorption equilibrium of Hg just in 25 min and the adsorption capacity is 435.

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Background: SOX2 overlapping transcript (SOX2OT) has been reported to be an important lncRNA in various cancers. SOX2 is embedded in an intron of the SOX2OT gene. But the role of SOX2OT in esophageal squamous cell carcinoma (ESCC) and the association between SOX2OT and SOX2 remain unclear.

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Esophageal squamous cell carcinoma (ESCC) is the main subtype of esophageal cancer. Long noncoding RNAs (lncRNAs) are thought to play a critical role in cancer development. Recently, lncRNA CASC9 was shown to be dysregulated in many cancer types, but the mechanisms whereby this occurs remain largely unknown.

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Esophageal cancer is one of the leading causes of cancer-related mortality because of poor prognosis. Long noncoding RNAs (lncRNAs) have been gradually demonstrated to play critical roles in cancer development. We identified a novel long noncoding RNA named linc00460 by microarray analysis using esophageal squamous cell carcinoma (ESCC) clinical samples, which has not been studied before.

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Article Synopsis
  • Researchers used an ice-templating method to create chitosan/UiO-66 polymer/MOF monoliths aimed at improving water treatment by effectively adsorbing a herbicide compound, MCPP.
  • The unique macropores in these monoliths facilitated easier mass transport and allowed for simple retrieval from water using tweezers.
  • After treatment to enhance stability, the adsorbent displayed significant adsorption capacity at 34.33 mg/g, showing potential for reuse, but also indicated that further optimization of the composite’s structure could enhance performance even more.
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Background: Abnormal expression of numerous long non-coding RNAs (lncRNAs) has been reported in esophageal squamous cell carcinoma (ESCC) recently, but the great majority of their roles and mechanisms remain largely unclear. We aim to identify the critical ESCC-associated lncRNAs and elucidate the functions and mechanisms in detail.

Methods: Microarrays were used to analyze the differentially expressed lncRNAs in ESCC tissues.

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Dysregulation of c-Myc is one of the most common abnormalities in human malignancies, including esophageal cancer, one of the world's most lethal cancers. MicroRNA-26 family, including miR-26a and miR-26b, is transcriptionally suppressed by c-MYC. Our previous microarray data indicated a decreased-expression of miR-26 family in esophageal squamous cell carcinoma (ESCC).

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Epidemiological studies have revealed the association between increased risk of bladder cancer and chronic arsenic exposure. Here, we explored biological effects of arsenic in T24. Microarray analysis was applied to analyze mRNA in T24 following 0, 2 or 5 μM sodium arsenite (As) exposure for 72 hours.

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Porous titanium (PT) is considered as a promising biomaterials for orthopedic implants. Besides biocompatibility and mechanical properties, corrosion resistance in physiological environment is the other important factor affecting the long stability of an implant. In order to investigate the corrosion behavior of porous titanium implants in a dynamic physiological environment, a dynamic circle system was designed in this study.

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Three-dimensional (3D) culture models represent a better approximation of solid tumor tissue architecture, especially cell adhesion, in vivo than two-dimensional (2D) cultures do. Here, we explored the role of architecture in chemosensitivity to platinum in colon cancer. Under the 3D culture condition, colon cancer cells formed multicellular spheroids, consisting of layers of cells.

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Decreased expression of E-cadherin correlates with poor prognosis in colorectal cancer. Certain E-cadherin signaling cascades are triggered by intercellular force or binding to cadherins on adjacent cells. Three-dimensional (3D) cell cultures represent a better approximation of cell-cell adhesion in vivo than two-dimensional (2D) cultures.

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