206 results match your criteria: "the First Affiliated Hospital of Xi'An Jiao Tong University[Affiliation]"

Objective: Immune-mediated necrotizing myopathy (IMNM) is pathologically characterized by diffuse myofiber necrosis and regeneration, myophagocytosis, and a sparse inflammatory infiltrate. The monocyte chemoattractant protein-1 (MCP-1) is a key chemokine that regulates monocyte/macrophage infiltration into injured tissues. The interleukin-6 (IL-6) signalling in the induction of MCP-1 expression has not been investigated in IMNM.

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The coexistence of lung adenocarcinoma (LUAD) with idiopathic pulmonary fibrosis (IPF), which has been extensively documented as a prominent risk factor for checkpoint inhibitor-related pneumonitis (CIP) in patients undergoing immunotherapy, has long been considered a restricted domain for the use of immune checkpoint inhibitors (ICIs). To overcome it, an approach was employed herein to specifically target PD-L1 within the cellular interior, surpassing the conventional focus solely on the cytomembrane, thereby facilitating the development of ICIs capable of distinguishing between LUAD cells and noncancerous cells based on their distinctive endocytic propensities. By exploiting the aurophilicity-driven self-assembly of a PD-L1 binding peptide (PDBP) and subsequently encapsulating it within erythrocyte membranes (EM), the resulting biomimetic ICIs protein EMS-PDBP exhibited extraordinary selectivity in internalizing LUAD cells, effectively targeting PD-L1 within cancer cells while hindering its membrane translocation.

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Background: The role of the intestinal microbiota in the pathogenesis of inflammatory bowel disease combined with axial spondyloarthritis (axSpA) is gaining widespread interest.

Aims: This study was conducted to investigate the clinical and fecal microbiota characteristics of patients with both ulcerative colitis (UC) and axSpA.

Methods: Clinical data were collected from patients with UC.

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Tumor budding is a long-established independent adverse prognostic marker for colorectal cancer (CRC), yet assessment of tumor budding was not reproducible. Therefore, development of precise diagnostic approaches to tumor budding is in demand. In this study, we first performed bioinformatic analysis in our single-center CRC patients' cohort (n = 84) and identified tumor budding-associated hub genes using the weighted gene co-expression network analysis (WGCNA).

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Disulfidptosis, a newly revealed form of cell death, regulated by numerous genes that has been recently identified. The exact role of disulfidptosis in lung adenocarcinoma (LUAD) still uncertain. Objective of this study was to explore potential prognostic markers among disulfidptosis genes in LUAD.

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The microbiome in a specific human organ has been well-studied, but few reports have investigated the multi-organ microbiome as a whole. Here, we aim to analyse the intra-individual inter-organ and intra-organ microbiome in deceased humans. We collected 1608 samples from 53 sites of 7 surface organs (oral cavity, esophagus, stomach, small intestine, appendix, large intestine and skin; n = 33 subjects) and performed microbiome profiling, including 16S full-length sequencing.

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Background: An English version of the Patient Perception of Patient-Centeredness (PPPC) scale was recently revised, and it is necessary to test this instrument in different primary care populations.

Aim: This study aimed to assess the validity and reliability of a Chinese version of the PPPC scale.

Design: A mixed method was used in this study.

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Background: Some gastrointestinal disorders may be associated with Helicobacter pylori infection, which not only affect maternal health, but may also lead to adverse pregnancy outcomes. We aim to explore the association between H. pylori and gastrointestinal disorders in pregnant women.

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CT features of calcified micro-gastric gastrointestinal stromal tumors: a case series.

BMC Med Imaging

November 2023

Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiao Tong University, No.277, West Yanta Road, Xi'an, Shaanxi, 710061, P.R. China.

Background: Due to the lack of corresponding clinical symptoms, small calcified gastric gastrointestinal stromal tumors (GISTs) are often overlooked in clinical practice. Therefore, there is an unmet need to define the imaging features of calcified micro-gastric GISTs to facilitate diagnosis. This study retrospectively analyzed the computed tomography (CT) features of pathologically confirmed calcified micro-gastric GISTs.

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Background: Pegmolesatide, a synthetic peptide-based erythropoietin (EPO) receptor agonist, is being evaluated as an alternative to epoetin alfa for treating anemia of chronic kidney disease (CKD) in Chinese dialysis patients. There is a critical need for a long-acting, cost-effective erythropoiesis-stimulating agent that does not produce EPO antibodies.

Methods: A randomized, open-label, active-comparator, non-inferiority phase three trial was conducted at 43 dialysis centers in China between May 17th, 2019, and March 28th, 2022.

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Liver cirrhosis is a confirmed risk factor for poor prognosis of stroke; however, the contribution of clinically inapparent liver fibrosis to cardioembolic stroke (CES) and its outcomes are poorly understood. This study aimed to investigate the associations between liver fibrosis-measured by the Fibrosis-4 (FIB-4) score-and stroke severity and short-term clinical outcomes of patients with acute CES due to nonvalvular atrial fibrillation (NVAF). A total of 522 patients were followed for a median of 90 days.

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Acetaldehyde dehydrogenases (ALDH) 1B1 is associated with a poor prognosis in pancreatic cancer, colorectal cancer, and osteosarcoma. Overexpression of ALDH also impairs tumor immunity. However, it is unclear how ALDH1B1 is associated with patient prognosis and immune infiltration in different cancer types.

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Introduction And Objectives: Cavin1 is a cell membrane caveolin, with controversial function in different tumors. Meanwhile, the role of Cavin1 in hepatocellular carcinoma (HCC) progression remains unclear. In this study, we attempted to elucidate the significance of Cavin1 in HCC occurrence and progression.

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Chinese Medical Association consensus for standardized diagnosis and treatment of pancreatic neuroendocrine neoplasms.

Chin Med J (Engl)

October 2023

Department of Oncology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.

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Article Synopsis
  • PRSS1 is a gene linked to chronic pancreatitis, and its variants can be difficult to classify due to differences in their effects on the enzyme's function.
  • The study analyzed 100 variants of the PRSS1 gene, categorizing them based on genetic impact and clinical significance using a new classification system.
  • Findings indicate that many PRSS1 variants can be classified as pathogenic, likely pathogenic, or benign, which could help improve how these variants are reported in medical databases.
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Introduction: Osteoarthritis (OA) is a chronic disease with high morbidity and disability rates whose molecular mechanism remains unclear. This study sought to identify OA markers associated with synovitis and cartilage apoptosis by bioinformatics analysis.

Methods: A total of five gene-expression profiles were selected from the Gene Expression Omnibus database.

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Nitroalkanes as thioacyl equivalents to access thioamides and thiopeptides.

Nat Commun

August 2023

School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, 710049, Xi'an, China.

Thioamides are an important, but a largely underexplored class of amide bioisostere in peptides. Replacement of oxoamide units with thioamides in peptide therapeutics is a valuable tactic to improve biological activity and resistance to enzymatic hydrolysis. This tactic, however, has been hampered by insufficient methods to introduce thioamide bonds into peptide or protein backbones in a site-specific and stereo-retentive fashion.

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Background The epicardial adipose tissue (EAT) of metabolic syndrome (MetS) is abnormally accumulated with dysfunctional secretion of adipokines, closely relating to cardiac dysfunction. The current study was designed to identify the effects of EAT-derived leptin on the myocardium of MetS rats and explore the potential molecular mechanisms. Methods and Results A MetS rat model was established in 8-week-old Wistar rats by a 12-week high-fat diet.

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Despite recent advances in treatment, overall survival rates for metastatic melanoma, especially those that invade the lungs, continue to be low, with 5-year survival rates of only 3% to 5%. It was recently discovered that Wnt/β-catenin signaling pathways and MAPK/ERK signaling pathways are involved in melanoma metastasis. Herein, a bifunctional supramolecular peptide termed HBB@CA was constructed by a self-assembling RGD-modified MAPK/ERK peptide inhibitor (HBB) and a small molecule catenin inhibitor (carnosic acid (CA)).

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Background: Advanced hepatocellular carcinoma (HCC) is characterized as symptomatic tumors [performance status (PS) score of 1-2], vascular invasion and extrahepatic spread, but patients with PS1 alone may be eliminated from this stage. Although liver resection is used for liver-confined HCC, its role in patients with PS1 alone remains controversial. Therefore, we aimed to explore its application in such patients and identify potential candidates.

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Objective: The objective of this study is to explore the clinicopathological characteristics of gastric cancer and precancerous conditions in patients with primary gastric lymphoma.

Methods: We analyzed 474 cases of primary gastric lymphoma, mainly DLBCL and MALT, from three clinical centres retrospectively, and compared the clinicopathological parameters of primary gastric lymphoma patients complicated with gastric cancer, precancerous conditions, or with no complications.

Results: A total of 5.

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The Dynamics of Dopamine D Receptor-Expressing Striatal Neurons and the Downstream Circuit Underlying L-Dopa-Induced Dyskinesia in Rats.

Neurosci Bull

September 2023

Department of Physiology and Pathophysiology and Institute of Neuroscience, School of Basic Medical Sciences, Xi'an Jiao Tong University Health Science Center, Xi'an, 710061, China.

L-dopa (l-3,4-dihydroxyphenylalanine)-induced dyskinesia (LID) is a debilitating complication of dopamine replacement therapy for Parkinson's disease. The potential contribution of striatal D receptor (DR)-positive neurons and downstream circuits in the pathophysiology of LID remains unclear. In this study, we investigated the role of striatal DR neurons and downstream globus pallidus externa (GPe) neurons in a rat model of LID.

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Barrett's esophagus (BE) is a precancerous lesion of esophageal adenocarcinoma (EAC). It is a pathological change in which the squamous epithelium distal esophagus is replaced by columnar epithelium. Loss of is involved in the development of BE and is taken as a risk factor for the progression.

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The objective of this study is to explore the incidence, characteristics, risk factors, and prognosis of liver injury in patients with COVID-19. We collected clinical data of 384 cases of COVID-19 and retrospectively analyzed the incidence, characteristics, and risk factors of liver injury of the patients. In addition, we followed the patient two months after discharge.

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Background: The evidence in Portal pressure gradient (PPG) < 12 mmHg after transjugular intrahepatic portosystemic shunt (TIPS) for preventing rebleeding mostly comes from observations in uncovered stents era. Moreover, association between Child-Pugh classes and post-TIPS hepatic encephalopathy (HE) has indicated that tolerance of PPG reduction depends on liver function. This study aimed to investigate the optimal PPG for covered TIPS and explore the optimal threshold tailored to the Child-Pugh classes to find individualized PPG to balance rebleeding and overt HE.

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