Publications by authors named "Xingjie Xu"

Parkinson's disease (PD) is a neurodegenerative disease characterized by the pathological loss of nigrostriatal dopaminergic neurons, which causes an insufficient release of dopamine (DA) and then induces motor and nonmotor symptoms. Hyperoside (HYP) is a lignan component with anti-inflammatory, antioxidant, and neuroprotective effects. In this study, 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) and its active neurotoxic metabolite 1-methyl-4-phenylpyridinium ion (MPP) were used to induce dopaminergic neurodegeneration.

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GABPB1, known as nuclear respiratory factor 2 (Nrf2), activates the mitochondrial genes that are responsible for antioxidant action and detoxification. Two single nucleotide polymorphisms (SNPs) of , such as rs7181866 and rs8031031, were reported to be associated with the prevention of the increasing cancer risk caused by environmental deterioration. Between March 1 and May 1, 2018, human peripheral blood mononuclear cells (PBMCs) from a cohort of 300 volunteers working in adverse occupational environments were genotyped for the two SNPs in the present study.

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Article Synopsis
  • Regulatory B cells (Bregs) are crucial in maintaining immune balance and inducing tolerance, particularly in heart transplantation, though their specific mechanisms are still not completely understood.
  • In this study, researchers examined the role of specific Bregs in preventing transplant rejection and discovered that they interact with the CD40-TRAF6 signaling pathway in dendritic cells to prolong heart transplant survival in mice.
  • The findings suggest that targeting Breg functions and this signaling pathway could offer new treatment strategies for improving outcomes in heart transplantation.
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Background: The relationship of body mass index (BMI) to short- and long-term outcomes after cardiac surgery remains controversial, and the dose-response relationship between BMI and mortality in patients receiving cardiac surgery is unclear. Furthermore, the influence of age, concomitant disease, and types of surgery on the prognostic role of BMI has yet to be determined.

Methods: A retrospective cohort study with 6,473 adult patients receiving cardiac surgery was conducted using the Multiparameter Intelligent Monitoring in Intensive Care (MIMIC-III) database.

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Calcific aortic valve disease (CAVD) is highly prevalent in our aging world and has no effective pharmaceutical treatment. Intense efforts have been made but the underlying molecular mechanisms of CAVD are still unclear.This study was designed to identify the critical genes and pathways in CAVD by bioinformatics analysis.

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Background: The present study aimed to evaluate the value of admission serum uric acid (UA) level in predicting in-hospital risk of death in patients with acute type A aortic dissection (AAAD).

Methods: From January 2016 to June 2019, 186 consecutive patients with AAAD who underwent thoracic aortic surgery were retrospectively studied. Serum UA levels were measured on admission.

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Rationale: Primary cardiac angiosarcoma is a rare malignant cardiac neoplasm with early metastasis and poor prognosis. As there are currently no guidelines or effective therapeutic strategies, management of this condition depends on previous experiences of the clinician treating and the consideration of reported cases.

Patient Concerns: A 65-year-old male presented to our department with a 4-day history of chest tightness, dyspnea, lower extremity weakness and occasional dizziness, and a transthoracic echo (TTE) revealed a right atrium occupying mass.

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Rationale: Cardiac angiosarcoma is a rare malignant tumor, for which only surgery has been proven to be effective to date. Currently there are no reports as to whether a postoperative regimen of ifosfamide, epirubicin, and recombinant human endostatin is effective.

Patient Concern: The patient presented to us with chest pain and dyspnea.

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α-Adrenoceptor (α-AR) antagonists are considered to be the most effective monotherapy agents for lower urinary tract symptoms associated with benign prostatic hyperplasia (LUTS/BPH). In this study, we synthesized compounds 2-17, which are novel piperazine derivatives that contain methyl phenylacetate. We then evaluated the vasodilatory activities of these compounds.

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Subtype-selective α-adrenoceptor (AR) antagonists display optimum therapeutic efficacies for the treatment of benign prostatic hyperplasia (BPH). In this study, we designed and synthesized novel carbazole-arylpiperazines derivatives (1 and 2) on the basis of the proposed pharmacophore model for α-AR antagonists. Structural properties were investigated using single-crystal X-ray diffraction analysis.

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Article Synopsis
  • * Three compounds were analyzed using single-crystal X-ray diffraction, DFT calculations, and molecular docking, revealing that H-bonds and C-H···π interactions play key roles in stabilizing their structures.
  • * The study highlights the importance of hydrogen bonding to Gln177 for α1A-selective antagonists, providing insights for designing more selective α1A antagonists.
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Eleven novel naftopidil-related compounds that contain amide and indole groups were designed and synthesized. The biological effects of these compounds on three α1-adrenoceptor subtypes and cancerous human prostate cell lines (PC-3, DU-145, and LNCaP) were determined. Compounds 2, 3, 5, 11, and 12 exhibited an α1-adrenoceptor antagonistic activity, whereas compounds 9, 10, and 12 displayed moderate antiproliferative activities.

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What is the central question of this study? It is not known whether treatment with interleukin-10 (IL-10) attenuates hyperoxia-induced acute lung injury in mice. What is the main finding and its importance? Our results showed that exogenous IL-10 treatment alleviated hyperoxia-induced acute lung injury in mice, possibly by regulating neutrophil recruitment and the subsequent generation of cytokines, nitric oxide and matrix metalloproteinases. Lung injury caused by breathing air enriched with oxygen continues to be a major problem in clinical medicine.

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