Publications by authors named "AiMin Xu"

The impact of lead and cadmium exposure on subclinical cardiovascular disease (CVD), indicated by elevated high-sensitivity cardiac troponin (hs-cTnT) and N-terminal pro b-type natriuretic peptide (NT-proBNP) remains uncertain. We analyzed data from participants aged 20 and older, without overt CVD, in the National Health and Nutrition Examination Survey (NHANES; 1999-2004). Elevated lead and cadmium levels were defined as 3.

View Article and Find Full Text PDF

Background: The pathogenesis of non-alcoholic fatty liver disease (NAFLD) with a global prevalence of 30% is multifactorial and the involvement of gut bacteria has been recently proposed. However, finding robust bacterial signatures of NAFLD has been a great challenge, mainly due to its co-occurrence with other metabolic diseases.

Results: Here, we collected public metagenomic data and integrated the taxonomy profiles with in silico generated community metabolic outputs, and detailed clinical data, of 1206 Chinese subjects w/wo metabolic diseases, including NAFLD (obese and lean), obesity, T2D, hypertension, and atherosclerosis.

View Article and Find Full Text PDF

β-Klotho (KLB), a type I transmembrane protein, serves as an obligate co-receptor determining the tissue-specific actions of endocrine fibroblast growth factors (FGFs). Despite accumulative evidence suggesting the occurrence of N-glycosylation in the KLB protein, the precise N-glycosites, glycoforms, and the impacts of N-glycosylation on the expression and function of the KLB protein remain unexplored. Employing a mass spectrometry-based approach, a total of 12 N-glycosites displaying heterogeneous site occupancy and glycoforms were identified within the extracellular region of the recombinant human KLB protein.

View Article and Find Full Text PDF

Concrete-filled steel tubes (CFST) are widely used due to their high strength, ductility, and energy dissipation capacity. However, gaps in between core concrete and steel tube adversely affect the mechanical performance of structures, thereby compromising the safety of the building. In this paper, four concrete-filled steel tube specimens with spherical-cap gaps were designed, and quasi-static tests were conducted to investigate the impact of gap depth on the seismic performance of concrete-filled steel tube columns.

View Article and Find Full Text PDF
Article Synopsis
  • A study assessed whether vitamin D deficiency contributes to atrial fibrillation and ischemic stroke in younger individuals using data from over 3,900 participants in Hong Kong and over 392,000 from the UK Biobank.
  • Results indicated that higher genetically-predicted vitamin D levels were linked to a lower risk of these conditions, with an odds ratio suggesting a significant protective effect.
  • The findings highlighted that vitamin D may specifically reduce the risk of young-onset ischemic stroke in men, suggesting further research is needed to understand how vitamin D deficiency affects sex disparities in atrial fibrillation.
View Article and Find Full Text PDF
Article Synopsis
  • Neuroblastoma's treatment and prognosis depend on its biological behavior, and understanding the tumor immune microenvironment is crucial, yet currently lacks specific biomarkers.
  • Researchers analyzed transcriptome data from the GEO Database, calculating immunity scores and categorizing samples into high and low immunity groups, while employing machine learning to identify potential biomarkers.
  • Six genes (BATF, CXCR3, GIMAP5, GPR18, ISG20, and IGHM) were identified as potential biomarkers related to the immune environment of neuroblastoma, which may inform treatment strategies.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the role of gut fungi (mycobiome) in exercise benefits, particularly in Chinese males with prediabetes.
  • Results from a 12-week exercise program showed increased fungal diversity and identified specific fungal genera linked to metabolic improvements.
  • A machine-learning model predicted exercise responsiveness for insulin sensitivity based on baseline gut microbial patterns, demonstrating a strong relationship between gut mycobiome changes and the benefits of exercise.
View Article and Find Full Text PDF

Aims: Autophagy is an important cellular process for maintaining physiological homeostasis and is known to protect against cardiovascular diseases including ischemia reperfusion (I/R) injury. The underlying mechanisms behind its protection require further characterization.

Materials And Methods: Atg7 knock out (AKO) mice were generated and subjected to I/R injury, complemented by Atg7 KO in a H9c2 cardiomyoblast cellular model ± hypoxia-reoxygenation.

View Article and Find Full Text PDF

The blood-brain barrier (BBB) is a critical interface that maintains the central nervous system homeostasis by controlling the exchange of substances between the blood and the brain. Disruption of the BBB plays a vital role in the development of neuroinflammation and neurological dysfunction in sepsis, but the mechanisms by which the BBB becomes disrupted during sepsis are not well understood. Here, we induced endotoxemia, a major type of sepsis, in mice by intraperitoneal injection of lipopolysaccharide (LPS).

View Article and Find Full Text PDF

Mycobacterium tuberculosis (Mtb), the main pathogen responsible for the high mortality and morbidity of tuberculosis (TB) worldwide, primarily targets and invades macrophages. Infected macrophages activate a series of immune mechanisms to clear Mtb, however, Mtb evades host immune surveillance through subtle immune escape strategies to create a microenvironment conducive to its own proliferation, growth, and dissemination, while inducing immune cell death. The course of TB is strongly correlated with the form of cell death, including apoptosis, pyroptosis, and necrosis.

View Article and Find Full Text PDF

Background: Understanding how childhood psychosocial adjustment (CPA) influences later life health outcomes is crucial for developing interventions to mitigate the long-term risk of cardiometabolic diseases (CMDs).

Aims: To investigate the association between CPA and incident CMDs in mid-life, and the mediating roles of educational attainment, smoking habits and depression during young adulthood.

Method: A prospective cohort study utilised data from the 1958 National Child Development Study (NCDS; 1958-2013) and the 1970 British Cohort Study (BCS70; 1970-2018), encompassing 22 012 participants assessed for CPA in childhood, who were subsequently evaluated for educational attainment, smoking habits and depression in young adulthood, followed by assessments for CMDs in mid-life.

View Article and Find Full Text PDF
Article Synopsis
  • M1 macrophages help protect against infections but can also contribute to diseases related to metabolism and inflammation, driven by the E3 ubiquitin ligase MDM2.
  • MDM2 enhances the production of inflammatory molecules like IL-1β, MCP-1, and nitric oxide (NO) in M1 macrophages by degrading SPSB2, which stabilizes iNOS and activates the HIF-1α pathway.
  • Deleting MDM2 in immune cells reduces inflammation and damage in obesity and sepsis models, but may lead to higher mortality and bacterial infections when M1 macrophage responses are suppressed.
View Article and Find Full Text PDF

Background: BMP9 (bone morphogenetic protein 9) is a member of the TGF-β (transforming growth factor β) family of cytokines with pleiotropic effects on glucose metabolism, fibrosis, and lymphatic development. However, the role of BMP9 in myocardial infarction (MI) remains elusive.

Methods: The expressional profiles of BMP9 in cardiac tissues and plasma samples of subjects with MI were determined by immunoassay or immunoblot.

View Article and Find Full Text PDF

Background: Construction of a prognostic model for esophageal cancer (ESCA) based on prognostic RNA-binding proteins (RBPs) and preliminary evaluation of RBP function.

Methods: RNA-seq data of ESCA was downloaded from The Cancer Genome Atlas database and mRNA was extracted to screen differentially expressed genes using R. After screening RBPs in differentially expressed genes, R packages clusterProfiler and pathview were used to analyze the RBPs for Gene Ontology enrichment and Kyoto Encyclopedia of Genes and Genomes pathway.

View Article and Find Full Text PDF

Background: To explore the abnormal metabolism-related genes that affect the prognosis of patients with lung adenocarcinoma (LUAD), and analyze the relationship with immune infiltration and competing endogenous RNA (ceRNA) network.

Methods: Transcriptome data of LUAD were downloaded from the Cancer Genome Atlas database. Abnormal metabolism-related differentially expressed genes in LUAD were screened by the R language.

View Article and Find Full Text PDF
Article Synopsis
  • A study aimed to investigate the link between the 'weekend warrior' physical activity pattern and all-cause mortality in adults with type 2 diabetes was conducted using data from the National Health and Nutrition Examination Survey.
  • The research included over 6,000 participants and found that both weekend warriors and regularly active individuals had lower mortality rates compared to those who were inactive.
  • The results suggest that the weekend warrior activity pattern could effectively reduce all-cause mortality in adults with type 2 diabetes, similar to more regular exercise routines.
View Article and Find Full Text PDF

Objective: To explore the effect of miR-370-3p on LPS triggering, in particular its involvement in disease progression by targeting the TLR4-NLRP3-caspase-1 cellular pyroptosis pathway in macrophages.

Methods: Human macrophage RAW264.7 was divided into 6 groups: control, LPS, LPS + inhibitor-NC, LPS + miR-370-3p inhibitor, LPS + mimics-NC and LPS + miR-370-3p mimics.

View Article and Find Full Text PDF

Background: Green space is an important part of the human living environment, with many epidemiological studies estimating its impact on human health. However, no study has quantitatively assessed the credibility of the existing evidence, impeding their translations into policy decisions and hindering researchers from identifying new research gaps. This overview aims to evaluate and rank such evidence credibility.

View Article and Find Full Text PDF
Article Synopsis
  • - Type 1 diabetes (T1D) is an autoimmune disease where the body's immune system destroys insulin-producing cells in the pancreas, with recent studies suggesting that tissue-resident memory T (T) cells may play a significant role in this process.
  • - In research involving non-obese diabetic (NOD) mice, it was found that T cells are present in pancreatic islets before the onset of T1D, and the fatty acid-binding protein 4 (FABP4) enhances T cell survival and activity.
  • - Targeting FABP4 through genetic deletion or by using neutralizing antibodies against T cells decreased the recruitment of harmful cytotoxic T cells, delayed diabetes onset, and lowered the production of an important inflammatory molecule called
View Article and Find Full Text PDF

Metabolic dysfunction-associated steatohepatitis (MASH) is the severe form of non-alcoholic fatty liver disease which has a high potential to progress to cirrhosis and hepatocellular carcinoma, yet adequate effective therapies are lacking. Hypoadiponectinemia is causally involved in the pathogenesis of MASH. This study investigated the pharmacological effects of adiponectin replacement therapy with the adiponectin-derived peptide ALY688 (ALY688-SR) in a mouse model of MASH.

View Article and Find Full Text PDF

Patients with metabolic dysfunction-associated steatotic liver disease (MASLD), especially advanced metabolic dysfunction-associated steatohepatitis (MASH), have an increased risk of cardiovascular diseases (CVDs). Whether CVD events will, in turn, influence the pathogenesis of MASLD remains unknown. Here, we show that myocardial infarction (MI) accelerates hepatic pathological progression of MASLD.

View Article and Find Full Text PDF

Metabolic dysfunction-associated steatohepatitis (MASH) is the progressive form of metabolic dysfunction-associated steatotic liver disease (MASLD), and closely associated with a high risk of liver-related morbidity and mortality. Although enhanced neutrophil infiltration of the liver is a histological hallmark of MASH, the morphological pattern of hepatic neutrophils and their relevance to the definition of MASH remain unknown. This clinicopathological study aimed to determine the association of neutrophilic crown-like structures (CLSs) in liver biopsies and evaluate their relevance to the histological diagnosis of MASH.

View Article and Find Full Text PDF

High-strength steel (HSS) members with welded sections exhibit a notably lower residual compressive stress ratio compared with common mild steel (CMS) members. Despite this difference, current codes often generalize the findings from CMS members to HSS members, and the previous unified residual stress models are generally conservative. This study focuses on the membrane residual stress distribution in Q690 steel welded box sections.

View Article and Find Full Text PDF