Publications by authors named "Liu Nian"

Aims: This study aimed to investigate potential biomarkers for predicting incident heart failure (HF) in patients with atrial fibrillation and flutter (AF and AFL), utilizing proteomic data from the UK Biobank Pharma Proteomics Project (UKB-PPP).

Methods: This study analysed data from AF and AFL patients, split into discovery (n = 1050) and replication (n = 305) cohorts. Plasma biomarkers were screened using a multivariable-adjusted Cox proportional hazards model.

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Ferroptosis and tumor immunity.

Zhong Nan Da Xue Xue Bao Yi Xue Ban

August 2024

Ferroptosis is a unique form of cell death driven by iron-dependent lipid peroxidation, with regulatory mechanisms involving metabolic dysregulation and imbalance in redox systems. Ferroptosis is closely related to various immune cells in the tumor immune microenvironment, including both anti-tumor and pro-tumor immune cells, and it demonstrates significant potential in tumor immunotherapy. A systematic review of the regulatory mechanisms of ferroptosis and its relationship with immune cells can provide deeper insights into its application prospects in tumor immunotherapy.

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Ethnopharmacological Relevance: Yinxu Weitong Capsule (YXWTC) is a Chinese patent medicine used to treat chronic gastritis. However, its efficacy and mechanisms of action in treating precancerous lesions of gastric cancer (PLGC) remain unclear.

Aim Of The Study: To evaluate the effects of YXWTC on PLGC and explore the underlying mechanisms.

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Objective: The short-term efficacy of red blood cell (RBC) transfusion among general traumatic brain injury (TBI) patients is unclear.

Methods: We used the MIMIC database to compare the efficacy of liberal (10 g/dL) versus conservative (7 g/dL) transfusion strategy in TBI patients. The outcomes were neurological progression (decrease of Glasgow coma scale (GCS) of at least 2 points) and death within 28 days of ICU admission.

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Porous architecture of titanium implants offers significant advantages in promoting osseointegration and mitigating the "stress shielding" effect. However, challenges remain in enhancing vascularization and preventing infection, especially given the complexities of modifying the intricate surface structure of porous titanium (PT). This study introduces a novel surface modification technique of PT using anti-gravity perfusion electrophoretic deposition (EPD) technique to fabricate antibacterial coatings containing silver (Ag) and copper (Cu) co-doped mesoporous silica nanoparticles (Ag-Cu@MSN) and chitosan binder on the surface of PT.

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The neuroimaging mechanisms that arise in patients with schizophrenia and comorbid metabolic syndrome (MetS) remain poorly understood. This study was devised to examine potential alterations in regional homogeneity (ReHo) that arise in schizophrenia patients with comorbid MetS undergoing risperidone or clozapine treatment. In total, 43 schizophrenia patients undergoing risperidone or clozapine treatment were enrolled in this study, of whom 20 had comorbid MetS (SZ-MetS) while 23 did not (SZ-nMetS).

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Purpose Of Review: This review examines the selective cardiac injury induced by pulsed electric fields during atrial fibrillation ablation. It consolidates findings from both preclinical and clinical studies on cardiac selectivity and explores the potential mechanisms behind this selectivity.

Recent Findings: Preclinical studies indicate that pulsed electric fields cause significantly more myocardial injury compared with other tissues.

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Article Synopsis
  • Perovskite light-emitting diodes (PeLEDs) are gaining attention for their potential in advanced displays, with vacuum deposition being a promising manufacturing method due to its efficiency and ease of pixelation.
  • A new trisource coevaporation strategy has been introduced to create a specific perovskite structure (MACsPbBr) that enhances carrier confinement and reduces defects, resulting in a significant increase in external quantum efficiency (EQE).
  • The study reports the development of the first vacuum-deposited transparent PeLEDs, which feature double-sided emission and a high EQE of 7.6%, and demonstrates their use in a multifunctional intelligent display capable of heart rate detection and imaging.
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Article Synopsis
  • The study investigates whether combining linear ablation and ethanol infusion of the vein of Marshall (EIVOM) with pulmonary vein isolation (PVI) improves maintenance of sinus rhythm in patients with persistent atrial fibrillation (AF).
  • Conducted as the PROMPT-AF trial across 12 hospitals in China, it enrolled 498 patients, comparing outcomes between PVI alone and the combined approach.
  • Primary outcomes focused on the rate of freedom from atrial arrhythmias without antiarrhythmic drugs within a year, with various secondary outcomes related to arrhythmia recurrence and quality of life also assessed.
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Phthalocyanines (Pcs) are widely developed in cancer phototherapy due to their definite chemical structure and tunable photosensitivity. However, their in vivo application is hampered by low water solubility and non-specific biodistribution. Here,a strategy of sialylation-modulation is developed for the first time to highly improve the bioavailability of Pcs.

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The substances that cause abnormal DNA structures are known as DNA damage-inducing factors, and their resulting DNA damage has been extensively studied and proven to be closely related to cancer, neurodegenerative diseases, and aging. Prolonged exposure to DNA damage-inducing factors can lead to a variety of difficult-to-treat diseases, yet these factors have not been well summarized. It is crucial to use a combination of environmental science and life science to gain a deep understanding of the environmental sources and biological consequences of DNA damage-inducing factors for mechanistic research and prevention of diseases such as cancer.

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This study reveals the role of thermal instability in hydrogen-substituted graphdiyne (HsGDY) and its impact on lithium-sulfur (Li-S) battery performance. HsGDY undergoes significant chemical and physical transformations when subjected to thermal heating, both in the presence and absence of sulfur. Our findings suggest that the structural transformation of HsGDY into a graphene-like structure is primarily responsible for enhancing sulfur trapping and reducing the polysulfide shuttle effect, rather than the previously hypothesized alkyne-sulfur chemical interactions.

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Background: Early rhythm control reduces the risk of cardiovascular events in patients with atrial fibrillation (AF). Despite the superiority of catheter ablation in maintaining sinus rhythm, the knowledge gaps regarding the prognostic benefits of non-early (onset of AF ≥1 year) ablation remain.

Objective: The study aimed to describe outcomes of non-early AF in the CABANA trial.

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This study aimed to identify genes associated with autophagy and potential diagnostic biomarkers by comparing the gene expression profiles of synovial tissues in patients with rheumatoid arthritis (RA) and healthy individuals, aiming to offer new insights for clinical treatment strategies. We used publicly available datasets to analyze differentially expressed genes (DEGs) between the synovial tissue of RA patients and healthy individuals. Then, we intersected these DEGs with autophagy-related genes to identify autophagy genes in the synovial tissue of RA patients.

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Article Synopsis
  • A new type of biomass porous carbon was created using rice straw and a self-doping solvent, which is both cost-effective and environmentally friendly, addressing energy and pollution issues.* -
  • The resulting carbon, called RSTCs-1, has a unique porous structure and high surface area, making it suitable for energy storage applications.* -
  • Testing showed that RSTCs-1 performed well in various energy storage systems, achieving impressive energy density and capacity, indicating its potential as a multifunctional electrode material.*
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Ibrutinib, a potent Bruton's tyrosine kinase inhibitor with marked efficacy against hematological malignancies, is associated with the heightened risk of atrial fibrillation (AF). Although ibrutinib-induced AF is linked to enhanced oxidative stress, the underlying mechanisms remain unclear. This research aimed to explore the molecular mechanism and regulatory target in ibrutinib-induced AF.

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Article Synopsis
  • NUMTs (nuclear mitochondrial pseudogenes) are segments of mitochondrial DNA that have integrated into the nuclear genome, providing a unique window into evolutionary patterns.
  • The study examined NUMTs in ten Orthoptera species, revealing divergence rates between NUMTs and current mitochondrial DNA ranging from 0% to 23.78%, with a significant link between NUMT insertions and transposable elements.
  • A proposed mechanism for NUMT integration involves the reverse transcription of mitochondrial RNA into DNA, which occurs at low probabilities, while phylogenetic analysis of NUMTs and current mtDNA offers insights into historical evolutionary processes and species relationships.
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Nonalcoholic fatty liver disease (NAFLD) causes significant global mortality and healthcare costs with no recommended pharmacological intervention for clinical management. Nuciferine (Nuc) is an alkaloid with aromatic rings, abundantly found in . In this study, we explored the protective mechanisms of Nuc against hepatic steatosis and ferroptosis in NAFLD.

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Background: The impact of comorbidity burden on outcomes of radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF) in patients with heart failure and preserved ejection fraction (HFpEF) remains unclear.

Objective: The purpose of this study was to evaluate how comorbidity burden influences the association between RFCA and cardiovascular outcomes in AF patients with HFpEF.

Methods: AF patients with HFpEF from the prospective China-AF cohort, recruited between August 2011 and December 2020, were categorized into 2 groups based CHADS-VASc score: low comorbidity burden (score ≤4) and high comorbidity burden (score >4).

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Background: Intracardiac echocardiography (ICE) has been widely used in the catheter ablation of atrial fibrillation (AF). However, the value of ICE in the training of transseptal puncture (TSP) is unclear.

Methods: ICE-Training Study was a single-center, parallel-group, unmasked, randomized controlled trial registered in ChineseClinicalTrials.

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