Publications by authors named "Liu Jianfeng"

Intramuscular fat (IMF) is an important indicator for evaluating meat quality. Transcriptome sequencing (RNA-seq) is widely used for the study of IMF deposition. Machine learning (ML) is a new big data fitting method that can effectively fit complex data, accurately identify samples and genes, and it plays an important role in omics research.

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Brain biopsy is commonly employed for the histological diagnosis of complex intracranial diseases. To improve the positive diagnostic rate, the precision of intraoperative tissue sampling is critical. This study evaluated the accuracy of fluorescence imaging technology in rapidly distinguishing tumours from nontumour tissue during surgery, thus providing real-time feedback to surgeons and optimizing the surgical workflow.

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Radiotherapy (RT) is widely applied in tumor therapy, but inevitable side effects, especially for skin radiation injury, are still a fatal problem and life-threatening challenge for tumor patients. The main components of topical radiation protection preparations currently available on the market are antioxidants, such as SOD, which are limited by their unstable activity and short duration of action, making it difficult to achieve the effects of radiation protection and skin radiation damage treatment. Therefore, we designed a drug-free antioxidant hydrogel patch with encapsulated bioactive epidermal growth factor (EGF) for the treatment of radiation skin injury.

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Acute alcohol intoxication could cause multiorgan damage, including nervous, digestive, and cardiovascular systems, and in particular, irreversible damage to the brain and liver. Emerging studies have revealed that the endogenous multienzymatic antioxidant defense system (MEAODS) plays a central role in preventing oxidative stress and other toxicological compounds produced by alcohol. However, few available drugs could quickly regulate MEAODS.

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Numerous studies conducted in recent years indicate that mammalian E3 ubiquitin ligases serve as key regulators in the maintenance of cellular homeostasis by targeting the ubiquitination of substrate proteins and activating downstream signaling pathways. SYVN1, an E3 ubiquitin ligase, is characterized by its significant functions in regulating various biological processes, including molecular mechanisms related to gene expression, signaling pathways, and cell death, among others. Consequently, SYVN1 plays a crucial role in both normal human physiology and the pathogenesis of various diseases, such as oncogenesis, cardiovascular disorders, immune regulation, skeletal anomalies, and neurological diseases.

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To investigate the clinical characteristics of patients with hydrocephalus after hypertensive cerebral haemorrhage (HICH) and to analyse the relevant factors affecting the prognosis. A total of 500 patients with HICH admitted to the neurosurgery department of The First Hospital of Hebei Medical University between January 2020 and July 2024 were retrospectively analysed. The clinical data of the patients were collected, the occurrence of hydrocephalus within 3 months after discharge was followed up, and the patients were divided into the occurrence group and the non-occurrence group.

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Background: Ferroptosis is a new form of iron-dependent cell death that is closely associated with sepsis. However, few studies have investigated the diagnostic and therapeutic potential for ferroptosis-related genes (FRGs) among postoperative sepsis.

Methods: The GSE131761 dataset was used to identify differentially expressed FRGs (DE-FRGs).

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In situ activation of prodrugs or photosensitizers is a promising strategy for specifically killing tumor cells while avoiding toxic side effects. Herein, we originally develop a bioorthogonally activatable prodrug and pro-photosensitizer system to synchronously yield an aggregation-induced emission (AIE) photosensitizer and a chemotherapeutic drug for synergistic chemo-photodynamic-immunotherapy of tumors. By employing molecular engineering strategy, we rationally design a family of tetrazine-functionalized tetraphenylene-based photosensitizers, one of which (named TzPS5) exhibits a high turn-on ratio, a NIR emission, a typical AIE character, and an excellent ROS generation efficiency upon bioorthogonal-activation.

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Cinnamon, renowned for its aromatic flavor, represents one of the most widely used spices worldwide. Cinnamon is also considered beneficial to human health with therapeutic potential for treating various diseases, ranging from diabetes and cancer to neurodegenerative diseases. However, the mechanisms underlying cinnamon's health benefits remain elusive.

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Research using the model organism nematode has greatly facilitated our understanding of sensory biology, including touch, olfaction, taste, vision and proprioception. While hearing had long been considered to be restricted to vertebrates and some arthropods, we recently discovered that is capable of sensing and responding to airborne sound in a frequency and sound source-size-dependent manner. auditory sensation occurs when airborne sound physically vibrates their external cuticle (skin) to activate the sound-sensitive mechanosensory FLP/PVD neurons via nicotinic acetylcholine receptors (nAChRs), triggering aversive phonotaxis behavior.

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Objectives: This study examined the relationships between electrophysiological measures of the electrically evoked auditory brainstem response (EABR) with speech perception measured in quiet after cochlear implantation (CI) to identify the ability of EABR to predict postoperative CI outcomes.

Methods: Thirty-four patients with congenital prelingual hearing loss, implanted with the same manufacturer's CI, were recruited. In each participant, the EABR was evoked at apical, middle, and basal electrode locations.

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The apelin receptor (APJR) emerges as a promising drug target for cardiovascular health and muscle regeneration. While prior research unveiled the structural versatility of APJR in coupling to Gi proteins as a monomer or dimer, the dynamic regulation within the APJR dimer during activation remains poorly understood. In this study, we present the structures of the APJR dimer and monomer complexed with its endogenous ligand apelin-13.

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Six-transmembrane epithelial antigen of prostate 3 (STEAP3), a member of the iron regulation protein family, is characterized by a high recurrence rate and a short survival time. Nevertheless, studies investigating the role of STEAP3 in glioblastoma (GB) are scarce. In this study, the prognostic value of STEAP3 was evaluated utilizing mRNA expression profiles from Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) databases as the validation and training cohorts, respectively.

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Background: This study aimed to describe the temporal trends in the age and sex burdens of lower respiratory infections (LRIs) in China and globally from 1990 to 2021 and to analyze their epidemiological characteristics to formulate corresponding strategies to control LRIs.

Methods: This study utilized open data from the Global Burden of Disease (GBD) database from 1990 to 2021 to assess the burden of disease based on the prevalence, incidence, mortality, years lost (YLLs), years lived with disability (YLDs), and disability-adjusted life-years (DALYs) of LRIs in China and globally. Moreover, a comprehensive comparative analysis of the epidemiological characteristics of LRIs in China and globally was conducted via the Joinpoint regression model, age-period-cohort model (APC model), and stratified analysis of the study method from multiple dimensions, such as age, sex, and period.

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The design of breeding programs is crucial for maximizing economic gains. Simulation provides the most efficient measures to test these programs, as real-world trials are often costly and time-consuming. We developed GOplan, a comprehensive and user-friendly R package designed to develop animal breeding programs considering pure-bred populations and crossbreeding systems.

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Background: The potato tuber moth (PTM), Phthorimaea operculella, is an economically important pest of potato crops worldwide. So far, the application of chemical pesticides is the major measure to manage PTM, but it induces serious deleterious impacts on the environment and human health. Here, we screened the entomopathogenic fungi that are lethal to PTM, and tested their sublethal impacts on PTM development, mortality, and reproduction as well as that of ectoparasitic mite Pyemotes zhonghuajia, a natural enemy of PTM.

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Objective: To investigate whether changes in cerebrovascular hemodynamic parameters during extracorporeal membrane oxygenation (ECMO) treatment in neonates are associated with the occurrence of cerebrovascular complications.

Methods: This study selected neonatal patients who received ECMO treatment at a pediatric hospital in China from June 2021 to June 2024. Relevant clinical data were collected from the electronic medical record system.

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The class C orphan G-protein-coupled receptor (GPCR) GPR156, which lacks the large extracellular region, plays a pivotal role in auditory function through G. Here, we firstly demonstrate that GPR156 with high constitutive activity is essential for maintaining auditory function, and further reveal the structural basis of the sustained role of GPR156. We present the cryo-EM structures of human apo GPR156 and the GPR156-G complex, unveiling a small extracellular region formed by extracellular loop 2 (ECL2) and the N-terminus.

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Protein arginine methyltransferases (PRMTs) play an essential role in the regulation of ferroptosis, a form of programmed cell death characterized by abnormal iron ion metabolism, lipid peroxidation, and DNA damage. Through methylation, PRMTs modify specific proteins, thereby altering their activity, localizations, or interactions with other molecules to control the ferroptosis process. This study was conducted to provide a comprehensive overview of the relationship between PRMTs and ferroptosis, with a focus on the mechanisms by which PRMTs regulate ferroptosis and their effect on this cell death pathway.

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Aim: We investigated the mechanism by which the environmental toxin acrylamide (AM) promotes depression.

Methods: A depression mouse model was constructed using the chronic unpredictable mild stress method, AM was administered orally to simulate the exposure state. Depressive-like behavioral changes were assessed by open field test, elevated plus maze test, swimming test, and sucrose preference test.

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Article Synopsis
  • The study investigates the structural basis of allosteric interactions in heterodimeric G protein-coupled receptors (GPCRs), specifically focusing on metabotropic glutamate (mGlu) receptors, which are crucial for synaptic regulation.
  • Researchers utilized cryo-electron microscopy to reveal four distinct structures of the mGlu2-4 heterodimer, showcasing different activation states, including inactive, intermediate, and active forms.
  • Findings indicate that agonist binding to just one subunit isn't enough for full activation of the dimer, highlighting the asymmetric nature of mGlu receptor activation, where only mGlu4 activates G proteins.
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Cell division cycle 37 (CDC37) is a member of the molecular chaperone family and acts as a cochaperone of heat shock protein 90 (HSP90), which is overexpressed in many cancer types as a regulator of protein kinase maturation. In this process, CDC37 selectively recognizes and stabilizes protein kinases by forming a HSP90-CDC37-kinase chaperone complex. The protein-protein interactions (PPIs) of HSP90-CDC37 and CDC37-kinase complexes contribute to malignant tumors, as oncogenic kinases in malignant cells depend upon CDC37 expression.

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The controlled modulation of surface functional groups, in conjunction with the intrinsic structural characteristics of MXene materials, shows great potential in alleviating the shuttle effect and improving the sluggish reaction kinetics in lithium-sulfur batteries (LSBs). This study delves into the impact of surface functional groups (T = O, S, F, and Cl) on VB MBene concerning sulfur immobilization and kinetic catalytic properties through meticulous first-principles calculations. The results reveal that the establishment of T-Li bonds within VBT (T = O, S, F, and Cl) enhances the adsorption of lithium polysulfides (LiPSs).

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Article Synopsis
  • Pigs are crucial to the livelihoods of people in China, but genetic research has been limited due to insufficient large-scale genomic data.
  • The 1000 Chinese Indigenous Pig Genomes Project has sequenced over 1000 pigs from 50 populations, identifying millions of genomic variations and enhancing genetic studies.
  • Important findings include evidence of historical genetic mixing tied to human migration, unique genetic traits in certain pig populations, and specific genomic regions linked to traits like body size and adaptation to high altitudes.
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