Publications by authors named "Pei Xiang"

The development of patterned metal halide perovskite quantum dots (MHP QDs) has become an important strategy to explore new functionalities and applications in optoelectronics. Herein, a laser-induced technology is developed to fabricate multicolor MHP QD patterns to achieve multiple information encryption modes. To precisely control the synthesis reactions, PbBr and CsBr, the precursors of CsPbBr QDs, are separately coated on the donor glass and target substrates and stacked into a donor-PbBr-CsBr-target structure.

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Cancer stem cells (CSCs) possess the ability to self-renew and exhibit high differentiation potential, and they have been proven to be responsible for the maintenance, growth, and metastasis of tumors. As such, accurate identification and targeted therapy for CSCs are of great importance in clinical treatment. Here, a dual-targeted and light-responsive nanoprobe is presented, utilizing the reconstructed mesoporous SiO of a binary fatty acid eutectic mixture and a gold porous shell.

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Background: Spinal muscular atrophy (SMA) is caused by reduced expression of survival motor neuron (SMN) protein. Previous studies indicated SMA causes not only lower motor neuron degeneration but also extensive brain involvement. This study aimed to investigate the changes of brain white matter and structural network using diffusion tensor imaging (DTI) in children with type 2 and 3 SMA.

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The use of biomedical implants in surgical techniques promotes the restoration of lost tissue or organ physiological functions in the body. The interface between different materials determines their interactions and ultimately affects the physicochemical properties of biomedical implants. After implantation, the biointerface plays a crucial role in determining the biocompatibility and functionality of biomedical implants.

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Article Synopsis
  • Alantolactone (ALT) is a natural compound derived from Inula helenium L. that shows significant anti-cancer properties, particularly against non-small cell lung cancer (NSCLC).
  • Research indicates that ALT causes cancer cell death through a process called ferroptosis, which is different from traditional apoptosis, and is affected by the inhibition of the ferroptosis inhibitor Fer-1.
  • The study identified FTH1 as a key target for ALT, with findings showing that ALT reduces FTH1 levels and promotes its degradation, leading to increased iron accumulation and enhanced ferroptosis in NSCLC cells, thus demonstrating its potential as a novel cancer treatment.
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Malignant hyperthermia (MH), characterized by severe myoclonus, pyrexia, tachycardia, hypertension, elevated muscle enzymes, and hypercapnia, often occurs in patients with congenital deformities or genetic disorders. Although the reported incidence rate is as low as 1:5000 to 1:100,000, patients with MH exhibit rapid aggravation and an elevated mortality rate. Thus, MH is associated with substantial perioperative risk.

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Purpose: Clinical studies have demonstrated the intricate association between the onset and progression of obstructive sleep apnea (OSA) and the activation of the inflammatory cascade reaction. This study delves into investigating the causal links between 91 circulating inflammatory proteins (CIPs) and OSA through the application of Mendelian randomization (MR) techniques.

Methods: Utilizing genetic data on OSA sourced from the Finnish Biobank (FinnGen) Genome-wide Association Studies (GWAS) of the European population, alongside summary-level GWAS data of CIPs from 14,824 European participants, we conducted a bidirectional MR study.

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Background And Objective: Spinal muscular atrophy (SMA) is one of the most common monogenic neuromuscular diseases, and the pathogenesis mechanisms, especially the brain network topological properties, remain unknown. This study aimed to use individual-level morphological brain network analysis to explore the brain neural network mechanisms in SMA.

Methods: Individual-level gray matter (GM) networks were constructed by estimating the interregional similarity of GM volume distribution using both Kullback-Leibler divergence-based similarity (KLDs) and Jesen-Shannon divergence-based similarity (JSDs) measurements based on Automated Anatomical Labeling 116 and Hammersmith 83 atlases for 38 individuals with SMA types 2 and 3 and 38 age- and sex-matched healthy controls (HCs).

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Article Synopsis
  • * Significant findings included loss of cortical surface area in key brain regions and decreases in white matter volume; interestingly, some areas showed increased thickness that correlated with better functional scores.
  • * The results suggest that both type II and III SMA in children exhibit extensive brain alterations that may relate to muscle deterioration, possibly influenced by the absence of the SMN protein affecting cerebellar and sensory brain regions.
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Objective: Solitary plasmacytoma of bone of the spine (SPBS) was rarely detected in the past. However, its incidence has gradually increased with improvements in the diagnosis and understanding of the disease. We aimed to conduct a population-based cohort study to characterize the prevalence and factors associated with SPBS and develop a prognostic nomogram for predicting the overall survival of SPBS patients with a real-world analysis based on the surveillance, epidemiology, and end results database.

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Objective: The aim of the study is to investigate the value of computed tomography (CT) radiomics features to discriminate the liver metastases (LMs) of digestive system neuroendocrine tumors (NETs) from neuroendocrine carcinoma (NECs).

Methods: Ninety-nine patients with LMs of digestive system neuroendocrine neoplasms from 2 institutions were included. Radiomics features were extracted from the portal venous phase CT images by the Pyradiomics and then selected by using the t test, Pearson correlation analysis, and least absolute shrinkage and selection operator method.

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Background And Purpose: Knowledge of nerve fascicular structures is essential for managing peripheral nerve disorders. This study aimed to investigate the feasibility of z-axis high-resolution magnetic resonance (MR) microneurography (zH-MRMN) in displaying the three-dimensional structures of tibial nerve fascicles in vivo using a 3T MR scanner.

Materials And Methods: Twelve volunteers underwent z-axis conventional-resolution MR microneurography (zC-MRMN) and zH-MRMN of tibial nerves.

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In the process of bone tissue regeneration, regulation of osteogenesis-angiogenesis coupling is of great importance. Therefore, dimethyloxallyl glycine (DMOG) is loaded by nanoscale zeolitic imidazolate frameworks-8 (ZIF-8) to obtain a drug-loading system that can promote osteogenesis-angiogenesis coupling. Characterization of the drug-loading nanoparticles (DMOG@ZIF-8) reveals that DMOG is successfully loaded into ZIF-8 by two different methods, and the DMOG@ZIF-8 is prepared using the one-pot method (OD@ZIF-8) achieves higher loading efficiency and longer release time than those prepared using the post-loading method (PD@ZIF-8).

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This work reports the design and fabrication of strong tough poly(lactic acid) (PLA) foam by combining pressure-induced-flow (PIF) processing with supercritical CO foaming. PIF processing widened the foaming window of PLA to 40-120 °C, while supercritical CO foaming released the undesired internal stress of PLA samples with PIF processing (P-PLA). The prepared PLA foams displayed a unique microfibrillated bimodal micro/nano cellular structure which is strongly affected by saturation temperature (T).

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Using introduction of MoO and Fe, Cu, or Zn into amphiphilic polymers (DN) via an ion-exchange reaction, different transition metal complexes, as retardants and smoke suppressants, including (DN)Mo, Fe(DN)Mo, Cu(DN)Mo, and Zn(DN)Mo were synthesized. Combined with the results of X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR), it could be determined that ionic bonding of these ions with DN occurred. Subsequently, the influence of flame-retardant, smoke-suppression, and mechanical properties of (DN)Mo, Fe(DN)Mo, Cu(DN)Mo, and Zn(DN)Mo on polyvinyl Chloride (PVC) were tested.

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Purpose: To develop and validate a computerized tomography (CT)-based nomogram for predicting the malignant potential of primary gastric gastrointestinal stromal tumors (GISTs).

Methods: The primary and validation cohorts consisted of 167 and 39 patients (single center, different time periods) with histologically confirmed primary gastric GISTs. Clinical data and preoperative CT images were reviewed.

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This study investigated the correlation of four single nucleotide polymorphisms (SNPs) in Apolipoprotein M (ApoM) with the risk of type 2 diabetes mellitus (T2DM) and effects of the interactions of this gene and obesity. The effects of SNP and obesity interaction on T2DM was examined by generalized multifactor dimensionality reduction (GMDR) combined with the logistic regression model. T2DM patient-control haplotype was analyzed in silico using the haplotype analysis algorithm SHEsis.

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Purpose: To study the complication and success rates of root-filled teeth restored with zirconia posts in a critical review.

Materials And Methods: An electronic literature search in the MEDLINE, Cochrane Library, Ovid-EMBASE, and Chinese National Knowledge Infrastructure (CNKI) databases was undertaken in December 2018. Other databases were also searched for gray literature, and the electronic search was complemented by a manual search in the related reviews and references of full-text articles.

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Purpose: To explore the role of intratumoral heterogeneity on MRI assessed by histogram analysis in differentiating soft-tissue sarcomas (STS) of different grades.

Materials And Methods: Patients with primary STS undergoing MRI prior to iatrogenic procedures were included retrospectively. The histologic grade was assigned according to Federation Nationale des Centres de Lutte Contre le Cancer grading system.

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Background: The co-occurrence of type 1 autoimmune pancreatitis (AIP) and pancreatic tumor (PaT) has been previously reported. Pure AIP cases have favorable prognosis and are primarily treated with steroids, while AIP cases with PaT are associated with poor prognosis where the primary management is pancreatic resection. However, it's a challenge to timely identify the concurrent PaT in AIP because of their similar clinical and radiological manifestations.

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Background: As a new entity included in the 4th edition of the WHO classification of tumours of soft tissue and bone in 2013, hybrid peripheral nerve sheath tumours are benign composite neoplasms that demonstrate features of more than one type of nerve sheath tumour, with a wide age distribution and a predilection for superficial location. Those involving deep sites are relatively rare. To the best of our knowledge, only one case of primary intraosseous hybrid peripheral nerve sheath tumours has been documented.

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Objectives: To examine the correlation between computed tomography (CT) features and clinical presentation and to assess the management strategy for patients with isolated superior mesenteric artery (SMA) dissection.

Material And Methods: Retrospective analysis of clinical records and CT findings of patients with isolated superior mesenteric artery dissection treated between 2012 and 2016. The relationship between CT features and clinical symptoms and treatment options was studied.

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Nanoscale zeolitic imidazolate framework-8 (ZIF-8)-modified titanium (ZIF-8@AHT) can enhance osteogenesis in vitro. In this study, we systematically and quantitatively examined the effects of ZIF-8@AHT on osteogenesis, and investigated its ability to form bone in vivo. First, we coated various quantities of nanoscale ZIF-8 crystals on alkali- and heat-treated titanium (AHT) by controlling the concentration of the synthesis solution.

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Background: Warburg effect is a hallmark of cancer cells. Accumulating evidence suggests that microRNAs (miRs) could regulate such metabolic reprograming. Aberrant expression of miR-98 has been observed in many types of cancers.

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