Publications by authors named "Xiao-Ping Li"

The global aging population brings about various age-related clinical concerns, including sarcopenic obesity (SO), which poses a significant health risk for older individuals. SO is characterized by the coexistence of two phenotypes, namely, sarcopenia and obesity, and its pathogenesis is multifaceted. Current research indicates that both reduced muscle mass and excessive fat accumulation are associated with chronic low-grade inflammatory conditions.

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Inspired by the rich physics of honeycomb-kagome (HK) lattices and flat-band magnetism, we predict a stable two-dimensional (2D) penta-AgN monolayer through comprehensive tight-binding (TB) model analysis and first-principles calculations. This novel material integrates pentagonal AgN building blocks into an effective HK superstructure, exhibiting a unique planar hexagonal geometry with hypercoordinated Ag atoms. We demonstrate that penta-AgN is intrinsically a bipolar magnetic semiconductor (BMS) and, more notably, a magnetic real Chern insulator (MRCI) protected by symmetry, featuring spin-polarized flat bands near the Fermi level, intrinsic in-plane ferromagnetic ordering, and observable corner states.

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Objective: This study aims to evaluate moral courage among surgical nurses and examine its association with factors such as decent work and professional grief support, to inform nursing management strategies for enhancing moral courage.

Methods: A cross-sectional study included convenience sample of 431 surgical nurses from municipal tertiary Class A hospitals, with 406 valid responses generated after exclusions. Data on demographics (gender, age) and professional characteristics (years of experience, marital status, child-bearing status, education level, professional title, administrative role, employment type, monthly income, and frequency of night shifts) was collected.

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We propose ferroelectric layer sliding as a new approach to realize and manipulate topological quantum states in two-dimensional (2D) bilayer magnetic van der Waals materials. We show that stacking monolayer ferromagnetic topological states into layer-spin-locked bilayer antiferromagnetic structures, and introducing sliding ferroelectricity leads to asynchronous topological evolution of different layers (spins) owing to the existence of polarization potentials, thereby giving rise to rich layer-resolved topological phases. As a specific example, by means of a lattice model, we show that a bilayer magnetic 2D second order topological insulator (SOTI) reveals an unrecognized spin-hybrid-order topological insulator after undergoing ferroelectric sliding.

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Background: Dilated cardiomyopathy (DCM) is a common cause of systolic heart failure, and is the most prevalent type of non-ischemic cardiomyopathy. Primary hyperparathyroidism (PHPT) is characterized by hypercalcemia and excessive secretion of parathyroid hormone (PTH). Generally, PHPT is asymptomatic and is incidentally identified during routine laboratory assessments.

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Background: Hypertrophic cardiomyopathy (HCM) is one of the most prevalent inherited myocardial disorders and is characterized by considerable genetic and phenotypic heterogeneity. A subset of patients with HCM progress to a dilated phase of HCM (DPHCM), which is associated with a poor prognosis; however, the underlying pathogenesis remains inadequately understood.

Case Summary: In this study, we present a case involving a pedigree with familial DPHCM and conduct a retrospective review of patients with DPHCM with identified gene mutations.

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Pentadactyl limbs represent a conserved morphological feature among tetrapods, with anterior digits considered more important than posterior digits for refined movement. While posterior digit formation is governed by graded expression of the and 5' genes, the regulatory mechanisms underlying anterior digit development, especially digit I (DI), remain poorly defined. This study identified an anterior expression pattern of in the limb buds of representative tetrapods, including humans, which exerted an inhibitory effect on skeletal development.

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Background: Bronchogenic cysts (BCs) are rare foregut-derived cystic malformations that can develop within the respiratory tract. While they are commonly found in the mediastinum or lungs, their occurrence at ectopic sites, such as the stomach, is extremely rare. This case report highlights the challenges in diagnosing a gastric bronchogenic cyst and the potential for misdiagnosis a pheochromocytoma, especially when associated with hypertension.

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Despite advancements in immunotherapy, particularly regarding programmed cell death protein 1 (PD-1)/programmed death-ligand 1 blockades, the clinical outcomes in non-small cell lung cancer (NSCLC) remain variable with limited predictive biomarkers currently available. The present study investigated respiratory microbiota diversity as a potential biomarker to predict the efficacy of PD-1 blockades in patients with advanced NSCLC. A retrospective analysis was conducted on 60 patients treated with PD-1 blockades from May 2019 to May 2023.

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Hepatocellular carcinoma (HCC) is a leading cause of cancer-related deaths globally, with poor prognosis due to late diagnosis and limited treatment options. In this study, we evaluated the expression of ectonucleoside triphosphate diphosphohydrolase 8 (ENTPD8) in HCC tissues and its clinical significance. Immunohistochemistry, The Cancer Genome Atlas (TCGA) data, and single-cell expression analysis revealed reduced ENTPD8 levels in liver cancer compared to adjacent tissues, with ENTPD8 primarily expressed in tumor cells within the tumor tissue.

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Pre-pregnancy obesity (PPO) seriously threatens the health of both mother and offspring. Pre-pregnancy weight management is particularly important for the prevention of metabolic diseases in offspring. Semaglutide is one of the most effective glucagon-like peptide-1 agonizts for the management of obesity and metabolic diseases, but little is known about its effect on the long-term health of offspring.

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Ricin is a category B agent for bioterrorism, and Shiga toxins are the primary virulence factors of Shiga toxin (Stx) producing Escherichia coli. Ricin and Stxs bind the ribosomal P-stalk proteins to depurinate the sarcin/ricin loop on the eukaryotic ribosome and inhibit translation. Both toxins are prime targets for therapeutic intervention because no effective therapy exists for ricin intoxication or Shiga toxin producing Escherichia coli infection.

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Hypertrophic cardiomyopathy (HCM) is an autosomal dominant inherited cardiomyopathy characterized by left ventricular hypertrophy. It is one of the chief causes of sudden cardiac death in younger people and athletes. Molecular-genetic studies have confirmed that the vast majority of HCM is caused by mutations in genes encoding sarcomere proteins.

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Objectives: To examine the effects of high-sensitivity C-reactive protein (hs-CRP) and left ventricular hypertrophy (LVH) on the cognitive function of hemodialysis (HD) patients, and to explore the relationship between hs-CRP, LVH, and cognitive impairment (CI).

Methods: A cross-sectional study was conducted on 232 HD patients. Besides, general clinical data were gathered, and patients' cognitive functions were assessed using the Beijing version of the Montreal Cognitive Assessment (MoCA-BJ).

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Lissencephaly (LIS) is a subtype of malformations of cortical development (MCD), characterized by smooth brain surfaces and underdeveloped gyri and sulci. This study investigates the genetic cause of pachygyria in a Chinese male infant diagnosed with the condition, who previously showed no causative variant through trio whole exome sequencing (Trio-WES) and copy number variation sequencing (CNVseq). Whole-genome sequencing (WGS) was conducted, revealing a novel heterozygous inversion spanning 1.

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Myeloid sarcoma (MS) is a rare hematological neoplasm with poor prognosis, posing a significant clinical challenge due to the absence of effective and standardized treatments. We conducted a retrospective analysis of 162 MS patients treated at 12 centers to compare outcomes between intensive chemotherapy and allogeneic hematopoietic stem cell transplantation (allo-HSCT). Our analysis revealed that allo-HSCT demonstrated superior overall survival (OS) within the initial 36 months compared to intensive chemotherapy alone (p = 0.

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Traditional electronic devices rely on the electron's intrinsic degrees of freedom (d.o.f.

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We present a novel approach to induce charge density waves (CDWs) in metallic MAZ materials, resembling the behavior observed in transition metal dichalcogenides (TMDCs). This method leverages the intercalating architecture to maintain the same crystal field and Fermi surface topologies. Our investigation reveals that CDW instability in these materials arises from electron-phonon coupling (EPC) between the band and longitudinal acoustic (LA) phonons, mirroring TMDC's behavior.

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Shiga toxins are the main virulence factors of Shiga toxin producing (STEC) and . There is no effective therapy to counter the disease caused by these toxins. The A1 subunits of Shiga toxins bind the C-termini of ribosomal P-stalk proteins to depurinate the sarcin/ricin loop.

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Ricin is one of the most toxic substances known and a type B biothreat agent. Shiga toxins (Stxs) produced by E. coli (STEC) and Shigella dysenteriae are foodborne pathogens.

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Article Synopsis
  • Shiga toxin 2a (Stx2a) is linked to hemolytic uremic syndrome, which causes kidney failure in children, by inhibiting protein synthesis in cells.
  • The study identifies the minimal sequence of the ribosomal P-stalk proteins needed for Stx2A1's binding and its inhibitory effectiveness, focusing on the importance of the last eight amino acids.
  • Researchers presented the X-ray crystal structure of Stx2A1 alone and with the P-stalk, revealing that specific contacts are crucial for Stx2A1's activity, highlighting the distinct interaction requirements among different ribosome-inactivating proteins.
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Utilization of faeces has long been a popular approach for genetic and ecological studies of wildlife. However, the success of molecular marker genotyping and genome resequencing is often unpredictable due to insufficient enrichment of endogenous DNA in the total faecal DNA that is dominated by bacterial DNA. Here, we report a simple and cheap method named PEERS to predominantly lyse animal cells over bacteria by using sodium dodecyl sulphate so as to discharge endogenous DNA into liquid phase before bacterial DNA.

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Ricin, a category-B agent for bioterrorism, and Shiga toxins (Stxs), which cause food poisoning bind to the ribosomal P-stalk to depurinate the sarcin/ricin loop. No effective therapy exists for ricin or Stx intoxication. Ribosome binding sites of the toxins have not been targeted by small molecules.

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Three-dimensional Dirac semimetals with square-net non-symmorphic symmetry, such as ternary ZrXY (X = Si, Ge; Y = S, Se, Te) compounds, have attracted significant attention owing to the presence of topological nodal lines, loops, or networks in their bulk. Orbital symmetry plays a profound role in such materials as the different branches of the nodal dispersion can be distinguished by their distinct orbital symmetry eigenvalues. The presence of different eigenvalues suggests that scattering between states of different orbital symmetry may be strongly suppressed.

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Article Synopsis
  • - A new species has been identified and described from western Hunan, China, and is illustrated for clarity.
  • - Molecular phylogenetic analysis using three nuclear ribosomal DNA loci shows this new species as a sister group within its clade.
  • - The new species can be differentiated from another species by distinct features in lamina, corolla, and nutlet morphology, and a key for identifying all Stachydeae species in China is included.
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