Publications by authors named "JiaBin Li"

Gastric cancer is a malignant gastrointestinal disease characterized by high morbidity and mortality rates worldwide. The occurrence and progression of gastric cancer are influenced by various factors, including the abnormal alternative splicing of key genes. Recently, RBM39 has emerged as a tumor biomarker that regulates alternative splicing in several types of cancer.

View Article and Find Full Text PDF

The robustness and catalytic activity of superoxide dismutase (SOD) are still the main factors limiting their application in industrial fields. This study aims to further improve the properties of a natural thermophilic iron/manganese dual-domain SOD (Fe/Mn-SODA fused with N-terminal polypeptide) from Geobacillus thermodenitrificans NG80-2 (GtSOD) by modifying its each domain using in-depth in silico prediction analysis as well as protein engineering. First, computational analysis of the N-terminal domain and GtSODA domain was respectively performed by using homologous sequence alignment and virtual mutagenesis.

View Article and Find Full Text PDF

Poor dietary habits have been associated with dysbiosis and microbial imbalance in pregnant women. Such imbalances can pose health risks during pregnancy. This study aimed to explore the impact of Polygonati Rhizoma on the gut microbiota of pregnant women through In vitro simulated fermentation.

View Article and Find Full Text PDF

Background: Rapid diagnosis of pulmonary tuberculosis (PTB) is urgently needed. We aimed to improve diagnosis rates by combining tuberculosis-interferon (IFN)-γ release assays (TB-IGRA) with metagenomic next-generation sequencing (mNGS) for PTB diagnosis.

Methods: A retrospective study of 29 PTB and 32 non-TB patients from our hospital was conducted between October 2022 and June 2023.

View Article and Find Full Text PDF

Given the vulnerability of large and medium-sized mammal communities to climate change and human disturbances, understanding the spatial-temporal dynamics of these communities is essential for effective conservation planning. However, in many biodiversity hotspots, precise biological community assessments are insufficient. From 2012 to 2022, we deployed 784 camera traps in eight nature reserves (including sub-reserves) and one State Forest Farm (SFF, less strictly protected than a reserve) to study the composition and distribution of large and medium-sized mammals in tropical Xishuangbanna.

View Article and Find Full Text PDF

Background: This study investigated the abilities of radiomics and clinical feature models to distinguish kidney stone-associated urinary tract infections (KS-UTIs) using computed tomography.

Methods: A retrospective analysis was conducted on a single-center dataset comprising computed tomography (CT) scans and corresponding clinical information from 461 patients with kidney stones. Radiomics features were extracted from CT images and underwent dimensionality reduction and selection.

View Article and Find Full Text PDF
Article Synopsis
  • RNF168 is an important protein involved in DNA damage repair, specifically regulating how DNA is marked for repair by adding ubiquitin to certain sites on histone H2A.
  • The study developed new chemical strategies and used cryo-electron microscopy to create detailed images of how RNF168 interacts with the E2 enzyme UbcH5c and nucleosomes during this process.
  • It revealed a unique binding mode for RNF168 that differs from other E3 ligases, providing valuable insights into how this protein functions and how mutations may affect its role in DNA repair.
View Article and Find Full Text PDF
Article Synopsis
  • Methicillin-resistant Staphylococcus aureus (MRSA) is a significant human pathogen linked to various infections, and gut microbiota, particularly spermidine, plays a crucial role in this context.
  • Research demonstrated that spermidine has protective benefits against MRSA bloodstream infections in mice by reducing bacterial load and inflammation, shifting macrophages to an anti-inflammatory state.
  • The study found that spermidine's protective effects are associated with increased expression of protein tyrosine phosphatase nonreceptor 2 (PTPN2), suggesting potential new treatment strategies for MRSA-related infections.
View Article and Find Full Text PDF

The chemical synthesis of histones with homogeneous modifications is a powerful approach for quantitatively deciphering the functional crosstalk between different post-translational modifications (PTMs). In this study, we developed an expedient site-specific (poly)ubiquitylation strategy (CAEPL, Cysteine Aminoethylation coupled with Enzymatic Protein Ligation), which integrates the Cys-aminoethylation reaction with the process of ubiquitin-activating enzyme UBA1-assisted native chemical ligation. Using this strategy, we successfully prepared monoubiquitylated and K63-linked di- and tri-ubiquitylated linker histone H1.

View Article and Find Full Text PDF
Article Synopsis
  • Recent research has found that RBM39, a protein linked to poor survival rates in several cancers, including gastric cancer, is regulated by USP39, a deubiquitinating enzyme.
  • The study reveals that USP39 enhances the stability of RBM39 by removing K48-linked polyubiquitin tags, which typically signal for protein degradation, and this interaction is essential for the growth and invasiveness of gastric cancer cells.
  • Targeting USP39 may provide a new therapeutic strategy to suppress RBM39 levels, potentially improving outcomes for gastric cancer patients by limiting tumor growth and spread.
View Article and Find Full Text PDF

Limited treatment options and multidrug-resistant (MDR) present a significant therapeutic challenge, underscoring the need for novel approaches. Drug repurposing is a promising tool for augmenting the activity of many antibiotics. This study aimed to identify novel synergistic drug combinations against based on drug repurposing.

View Article and Find Full Text PDF

Childhood obesity presents a serious health concern associated with gut microbiota alterations. Dietary interventions targeting the gut microbiota have emerged as promising strategies for managing obesity in children. This study aimed to elucidate the impact of stachyose (STS) supplementation on the gut microbiota composition and metabolic processes in obese children.

View Article and Find Full Text PDF

Background emergence of multidrug-resistant (MDR) bacterial strains is a public health concern that threatens global and regional security. Efflux pump-overexpressing MDR strains from clinical isolates are the best subjects for studying the mechanisms of MDR caused by bacterial efflux pumps. A strain overexpressing the OqxB-only efflux pump was screened from a clinical strain library to explore reverse OqxB-mediated bacterial resistance strategies.

View Article and Find Full Text PDF

Background: Severe fever with thrombocytopenia syndrome (SFTS) is spreading rapidly in Asia. The pathway of SFTS virus shedding from patient and specific use of personal protective equipments (PPEs) against viral transmission have rarely been reported. The study was to determine SFTS virus (SFTSV) shedding pattern from the respiratory, digestive and urinary tract to outside in patients.

View Article and Find Full Text PDF

The chemical synthesis of homogeneously ubiquitylated histones is a powerful approach to decipher histone ubiquitylation-dependent epigenetic regulation. Among the various methods, α-halogen ketone-mediated conjugation chemistry has recently been an attractive strategy to generate single-monoubiquitylated histones for biochemical and structural studies. Herein, we report the use of this strategy to prepare not only dual- and even triple-monoubiquitylated histones but also diubiquitin-modified histones.

View Article and Find Full Text PDF
Article Synopsis
  • Epigenetic regulators influence gene expression through histone modifications, particularly the monoubiquitination of histone H2AK119, which is linked to transcription repression.
  • The balance between the Polycomb repressive complex 1 (PRC1) and deubiquitinases like USP16 and PR-DUB controls this modification.
  • This study presents the cryo-EM structure of the USP16-H2AK119Ub nucleosome complex, revealing unique recognition and deubiquitination mechanisms that differ from PR-DUB, contributing to a better understanding of USP16-related diseases.
View Article and Find Full Text PDF

Introduction: Although nontuberculous mycobacterial (NTM) infection is a common cause of pulmonary disease worldwide, few studies have focused on epidemiological and therapeutic factors related to NTM cases in Anhui Province, China. This retrospective study aimed to identify aetiological and clinical factors, and treatment outcomes of patients with NTM pulmonary disease (NTMPD) in Anhui.

Methodology: Retrospective clinical data obtained from medical records of NTMPD patients seeking care at Anhui Chest Hospital from July 2019 to June 2022 were analyzed.

View Article and Find Full Text PDF

Biodiversity in tropical regions is facing threats from agricultural expansion and intensification. Therefore, a promising future for local ecosystem conservation depends not only on traditional protected areas but also on well-managed agricultural landscapes. In this study, we compared the ecological traits of bird species in paddy fields outside of protected areas and natural forests within the protected areas of Xishuangbanna, southern China.

View Article and Find Full Text PDF
Article Synopsis
  • Recent research suggests proton pump inhibitors (PPIs) may enhance the effectiveness of immune checkpoint inhibitors (ICIs) by increasing PD-L1 expression on tumor cells, although their effect on microbiome diversity is also a concern.
  • In experiments with mice, PPIs were found to boost PD-L1 levels at the cell membrane without changing total protein levels, and they worked synergistically with anti-PD-L1 antibodies to improve tumor response.
  • Clinical data from esophageal cancer patients showed that those using PPIs exhibited higher PD-L1 expression in tumor tissues, indicating a potential link between PPI use and altered immune response in cancer.
View Article and Find Full Text PDF

Background: As the largest organ of the body, the skin is constantly subjected to ultraviolet radiation (UVR), leading to inflammations and changes that mirror those seen in chronological aging. Although various small molecule drugs have been explored for treating skin photoaging, they typically suffer from low stability and a high incidence of adverse reactions. Consequently, the continued investigation of photoaging treatments, particularly those utilizing herbal products, remains a critical clinical endeavor.

View Article and Find Full Text PDF

1,2,3-Trichloropropane (TCP) is an emerging groundwater pollutant, but there is a lack of reported studies on the abiotic natural attenuation of TCP by iron minerals. Furthermore, perturbation by O is common in the shallow subsurface by both natural and artificial processes. In this study, natural magnetite was selected as the reactive iron mineral to investigate its role in the degradation of TCP under O perturbation.

View Article and Find Full Text PDF

This study aimed to investigate the prognostic value of a novel droplet digital polymerase chain reaction (DDPCR) assay in sepsis patients. In this prospective cohort study, univariable and multivariable Cox regressions were used to assess risk factors for 28-day mortality. We also monitored pathogen load together with clinical indicators in a subgroup of the cohort.

View Article and Find Full Text PDF

Excessive use of tetracycline antibiotics in poultry farming results in significant concentrations of these drugs and tetracycline resistance genes (TRGs) in chicken manure, impacting both environmental and human health. Our research represents the first investigation into the removal dynamics of chlortetracycline (CTC) and TRGs in different layers of an ex situ fermentation system (EFS) for chicken waste treatment. By pinpointing and analyzing dominant TRGs-harboring bacteria and their interactions with environmental variables, we've closed an existing knowledge gap.

View Article and Find Full Text PDF

In this paper, the Nth Darboux transformations for the (2+1)-dimensional generalized variable-coefficient Koretweg-de Vries (gvcKdV) equation are proposed. By using the Lamé function method, the generalized Lamé-type solutions for the linear spectral problem associated with the gvcKdV equation with the static and traveling Weierstrass elliptic ℘-function potentials are derived, respectively. Then, the nonlinear wave solutions for the gvcKdV equation on the static and traveling Weierstrass elliptic ℘-function periodic backgrounds under some constraint conditions are obtained, respectively, whose evolutions and dynamical properties are also discussed.

View Article and Find Full Text PDF