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"Li, Huiyuan"
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Parental knowledge, attitudes, and practices towards childhood fever among South-East and East Asian parents: A literature review
2023
The aim of this literature review was to identify, summarize, and critically appraise available empirical articles on the knowledge, attitudes, and practices towards childhood fever management among South-East and East Asian parents. A literature review following PRISMA. Articles were limited to those available in the English language. Articles had to be empirical studies that used a qualitative or quantitative research design with full-text available; focus on parental knowledge, attitudes, and practices towards fever; and be published in South-East and East Asia. Searches were conducted with CINAHL, PubMed and Scopus from inception to June 2022, and eleven articles were included after removing duplicates and excluding irrelevant articles. Narrative synthesis was conducted according to four themes: source of fever information, knowledge level, attitudes, and practices towards childhood fever. Parents showed different fever knowledge needs and various information-seeking behaviors. A low level of fever knowledge was revealed in terms of temperature, fever causes, potential harms and influencing factors. South-East and East Asian parents mainly reported anxiety, concerns and fever phobia. Fever assessment methods and fever management strategies varied based on parents' cultural background and beliefs. The findings of this review highlight that inadequacy of fever knowledge and negative attitudes towards childhood fever exist in South-East and East Asian parents. Parents have diverse cultural practices during their children's febrile episodes. However, some of them conflict with current medical guidelines, as they prioritize fever and body temperature reduction. This raises questions about their effectiveness and safety. Although some of them are medically discouraged, there are others that have been proven beneficial for the symptomatic relief of childhood fever. The results indicate an urgent need to develop a cultural-sensitive educational intervention for childhood fever management among South-East and East Asian parents. Unified educational interventions are needed to address parental concerns and fever-related knowledge needs.
Journal Article
Multi-omics analysis of human mesenchymal stem cells shows cell aging that alters immunomodulatory activity through the downregulation of PD-L1
2023
Mesenchymal stem cells (MSCs) possess potent immunomodulatory activity and have been extensively investigated for their therapeutic potential in treating inflammatory disorders. However, the mechanisms underlying the immunosuppressive function of MSCs are not fully understood, hindering the development of standardized MSC-based therapies for clinical use. In this study, we profile the single-cell transcriptomes of MSCs isolated from adipose tissue (AD), bone marrow (BM), placental chorionic membrane (PM), and umbilical cord (UC). Our results demonstrate that MSCs undergo a progressive aging process and that the cellular senescence state influences their immunosuppressive activity by downregulating PD-L1 expression. Through integrated analysis of single-cell transcriptomic and proteomic data, we identify GATA2 as a regulator of MSC senescence and PD-L1 expression. Overall, our findings highlight the roles of cell aging and PD-L1 expression in modulating the immunosuppressive efficacy of MSCs and implicating perinatal MSC therapy for clinical applications in inflammatory disorders.
Mesenchymal stem cells (MSC) are used for immunosuppressive therapy and a uniform source or heterogeneity characterisation is needed. Here the authors use multi-omics to compare human MSC from different sources and ages of donors and show differences in gene expression and immunosuppressive function.
Journal Article
CsMYB36 is involved in the formation of yellow green peel in cucumber (Cucumis sativus L.)
2018
Key messageA yellow green peel mutant (ygp) in cucumber was caused by a mutation in Csa2G352940 encoding MYB36 transcription factor.Peel color is one of the important agronomic traits of cucumber (Cucumis sativus L.). However, studies on the molecular regulation mechanism of peel color in cucumber are few. In this study, a cucumber yellow green peel mutant (ygp) of cucumber mutagenized with ethylmethylsulfone by using a wild type cucumber with dark green peel was identified. Pigment measurements indicated that the chlorophyll content of the ygp mutant was less than that of the wild type. Genetic analysis revealed that the phenotype of the ygp mutant was monogenic recessive inheritance. MutMap and genotyping results demonstrated that Csa2G352940 (CsMYB36), encoding the transcription factor MYB36, was the causal gene of the ygp mutant in cucumber. CsMYB36 was downregulated in the fruit of the ygp mutant. Transcriptome profile analysis of the fruit peel of the ygp mutant identified 92 candidate genes including genes that encode Casparian strip (CsCASP1) and pigment synthesis protein (CsMYC2) involved in peel color development in cucumber. CsMYB36 may regulate yellow green coloration in cucumber by interacting with these genes. Overall, these results showed that CsMYB36 can regulate the yellow green peel coloration in cucumber.
Journal Article
Revealing the Oxygen Transport Challenges in Catalyst Layers in Proton Exchange Membrane Fuel Cells and Water Electrolysis
2025
Highlights
Mechanisms of the bulk and local oxygen transport in cathode catalyst layers (CCLs) in proton exchange membrane fuel cells (PEMFCs) are presented.
State-of-the-art strategies to mitigate the oxygen transport resistance in CCLs in PEMFCs are reviewed, including the novel structure design, carbon supports design, and ionomer design.
New directions for oxygen transport development in anode catalyst layers (ACLs) in proton exchange membrane water electrolysis (PEMWEs) are inspired by the PEMFCs.
Urgent requirements of the renewable energy boost the development of stable and clean hydrogen, which could effectively displace fossil fuels in mitigating climate changes. The efficient interconversion of hydrogen and electronic is highly based on polymer electrolyte membrane fuel cells (PEMFCs) and water electrolysis (PEMWEs). However, the high cost continues to impede large-scale commercialization of both PEMFC and PEMWE technologies, with the expense primarily attributed to noble catalysts serving as a major bottleneck. The reduction of Pt loading in PEMFCs is essential but limited by the oxygen transport resistance in the cathode catalyst layers (CCLs), while the oxygen transport in anode catalyst layers (ACLs) in PEMWEs also being focused as the Ir/IrO
x
catalyst reduced. The pore structure and the catalyst–ionomer agglomerates play important roles in the oxygen transport process of both PEMFCs and PEMWEs due to the similarity of membrane electrode assembly (MEA). Herein, the oxygen transport mechanism of PEMFCs in pore structure and ionomer thin films in CCLs is systematically reviewed, while state-of-the-art strategies are presented for enhancing oxygen transport and performance through materials and structural design. The deeply research opens avenues for exploring similar key scientific problems in oxygen transport process of PEMWEs and their further development.
Journal Article
Effects of Virtual Reality–Based Interventions on Preoperative Anxiety in Patients Undergoing Elective Surgery With Anesthesia: Systematic Review and Meta-Analysis
2025
Preoperative anxiety is a common yet often neglected problem for patients undergoing surgery. Virtual reality (VR)-based intervention is a promising alternative with benefits for managing preoperative anxiety. However, the components of VR-based intervention and its effectiveness on preoperative anxiety in patients undergoing elective surgery with anesthesia remain unclear.
This study aimed to identify the major components (ie, device, medium, format, and duration) of VR-based interventions and summarize evidence regarding their effectiveness in reducing preoperative anxiety in patients undergoing elective surgery with anesthesia.
Allied and Complementary Medicine, Chinese University of Hong Kong Full Text Journals, CINAHL via EBSCOhost, Cochrane Library, Joanna Briggs Institute EBP Database, EMBASE, MEDLINE via OvidSP, PubMed, PsychINFO, Scopus, China Journal Net, and WanFang Data Chinese Dissertations Database were searched from inception to February 2025. Randomized controlled trials (RCTs) of VR-based interventions for patients undergoing elective surgery with anesthesia were included. The Cochrane Collaboration's tool was used for risk of bias assessment. A random effect model was used for pooling the results.
A total of 35 RCTs with 3341 patients (female: n=1474, 44.1%) were included in this review, of which 29 RCTs were included for meta-analysis. Compared with usual care, VR-based interventions showed substantial benefits in decreasing preoperative anxiety in patients undergoing elective surgery (standardized mean difference [SMD] 0.65, 95% CI 0.37-0.92; P<.001). Regarding the subgroup analysis, VR-based intervention showed significant but moderate effects on preoperative anxiety in the pediatric population (SMD 0.77, 95% CI 0.32-1.22; P<.001) compared to the adult population (SMD 0.58, 95% CI 0.23-0.93; P=.001). The distraction approach showed more significant effects (SMD 0.73, 95% CI 0.24-1.21; P=.004) on preoperative anxiety than the exposure approach (SMD 0.61, 95% CI 0.27-0.95; P<.001).
Patients undergoing elective surgery with anesthesia may benefit from VR as a novel alternative to reduce preoperative anxiety, especially pediatric patients via the distraction approach. However, more rigorous research is needed to confirm VR's effectiveness.
Journal Article
PolyGeom: Geometry-Aware Graph Transformer for Building Polygon Extraction in Remote Sensing Images
2026
Building polygon extraction is a critical task in remote sensing analysis and a fundamental component of modern urban management. Conventional segmentation-based methods often suffer from geometric distortions during the conversion from masks to polygons. End-to-end polygon prediction approaches (e.g., PolyWorld) alleviate this issue by directly predicting building polygons; however, existing PolyWorld-like methods remain limited in accurate corner vertex detection and polygon reasoning due to insufficient representation learning, particularly for geometry. In this work, we propose PolyGeom, an end-to-end framework equipped with a geometry-aware graph transformer for accurate and robust building polygon extraction. PolyGeom employs the Segment Anything Model (SAM) as its backbone to leverage large-scale pretrained features, thereby capturing both local and global semantics. Moreover, we propose a geometry-aware graph transformer that explicitly models geometry of building polygons, facilitating more reliable polygon reasoning. Extensive experiments on three challenging benchmarks, CrowdAI, WHU, and BONAI datasets, demonstrate that PolyGeom consistently outperforms existing methods in terms of building detection accuracy, topology correctness, and geometry alignment. Ablation studies further validate the effectiveness of the two key proposed designs in building polygon extraction.
Journal Article
PINOID is required for lateral organ morphogenesis and ovule development in cucumber
2019
Lateral organ development is essential for cucumber production. The protein kinase PINOID (PID) participates in distinct aspects of plant development by mediating polar auxin transport in different species. Here, we obtained a round leaf (rl) mutant that displayed extensive phenotypes including round leaf shape, inhibited tendril outgrowth, abnormal floral organs, and disrupted ovule genesis. MutMap₊ analysis revealed that rl encodes a cucumber ortholog of PID (CsPID). A non-synonymous single nucleotide polymorphism in the second exon of CsPID resulted in an amino acid substitution from arginine to lysine in the rl mutant. Allelic testing using the mutant allele C356 with similar phenotypes verified that CsPID was the causal gene. CsPID was preferentially expressed in young leaf and flower buds and down-regulated in the rl mutant. Subcellular localization showed that the mutant form, Cspid, showed a dotted pattern of localization, in contrast to the continuous pattern of CsPID in the periphery of the cell and nucleus. Complementation analysis in Arabidopsis showed that CsPID, but not Cspid, can partially rescue the pid-14 mutant phenotype. Moreover, indole-3-acetic acid content was greatly reduced in the rl mutant. Transcriptome profiling revealed that transcription factors, ovule morphogenesis, and auxin transport-related genes were significantly downregulated in the rl mutant. Biochemical analysis showed that CsPID physically interacted with a key polarity protein, CsREV (REVOLUTA). We developed a model in which CsPID regulates lateral organ morphogenesis and ovule development by stimulating genes related to auxin transport and ovule development.
Journal Article
Nursing students’ perceived anxiety and heart rate variability in mock skill competency assessment
by
Chien, Wai Tong
,
Szeto, Mark Wun Chung
,
Li, Huiyuan
in
Anxiety
,
Biology and Life Sciences
,
Diagnosis
2023
Skill competency assessments induce stress and anxiety and may affect nursing student performance. Little is known about stress and perceived anxiety levels and their relationship in the mock skill competency assessment. A cross-sectional study was conducted to examine the stress levels (as assessed by heart rate variability, HRV) and perceived anxiety before, during and after the mock skill competency assessment, and to explore their relationships to performance in a total of ninety first-year undergraduate nursing students. The HRV decreased significantly during the assessment and increased significantly 10 min after the assessment (p < 0.01). Higher performers showed significantly lower HRV during and after the assessment (p < 0.01). The assessment score was negatively correlated with HRV during and after the assessment (p < 0.05). Considering assessment-related stress and anxiety through a mock assessment prior to the actual skill assessment provides implications for future nursing education.
Journal Article
Construction and validation of a prognostic model of angiogenesis-related genes in multiple myeloma
by
Lu, Zhixiang
,
Li, Huiyuan
,
Shen, Chengmin
in
Angiogenesis
,
Angiogenesis-related genes
,
Biomarkers, Tumor - genetics
2024
Background
Angiogenesis is associated with tumour growth, infiltration, and metastasis. This study aimed to detect the mechanisms of angiogenesis-related genes (ARGs) in multiple myeloma (MM) and to construct a new prognostic model.
Methods
MM research foundation (MMRF)-CoMMpass cohort, GSE47552, GSE57317, and ARGs were sourced from public databases. Differentially expressed genes (DEGs) in the tumour and control cohorts in GSE47552 were determined through differential expression analysis and were enriched with Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. Weighted gene coexpression network analysis (WGCNA) was applied to derive modules linked to the ARG scores and obtain module genes in GSE47552. Differentially expressed ARGs (DE-ARGs) were selected for subsequent analyses by overlapping DEGs and module genes. Furthermore, prognostic genes were selected using univariate Cox and least absolute shrinkage and selection operator (LASSO) regression analyses. Depending on the prognostic genes, a risk model was constructed, and risk scores were determined. Moreover, MM samples from MMRF-CoMMpass were sorted into high- and low-risk teams on account of the median risk score. Additionally, correlations among clinical characteristics, gene set variation analysis (GSVA), gene set enrichment analysis (GSEA), immune analysis, immunotherapy predictions and the mRNA‒miRNA‒lncRNA network were carried out.
Results
A total of 898 DEGs, 211 module genes, 24 DE-ARGs and three prognostic genes (
AKAP12
,
C11orf80
and
EMP1
) were selected for this study. Enrichment analysis revealed that the DEGs were related to 86 GO terms, such as ‘cytoplasmic translation’, and 41 KEGG pathways, such as ‘small cell lung cancer’. A prognostic gene-based risk model was created in MMRF-CoMMpass and confirmed with the GSE57317 dataset. Moreover, a nomogram was established on the basis of independent prognostic factors that have proven to be good predictors. In addition, the immune cell infiltration results suggested that memory B cells were enriched in the high-risk group and that immature B cells were enriched in the low-risk group. Finally, the mRNA‒miRNA‒lncRNA network demonstrated that hsa-miR-508-5p was tightly associated with
EMP1
and
AKAP12
. RT‒qPCR was used to validate the expression of the genes associated with prognosis.
Conclusion
A new prognostic model of MM associated with ARGs was created and validated, providing a new perspective for exploring the connection between ARGs and MM.
Journal Article
LiCl induces apoptosis via CHOP/NOXA/Mcl-1 axis in human choroidal melanoma cells
2021
Background
Choroidal melanoma is the most common primary intraocular malignancy that occurs in adults. Lithium Chloride Promotes Apoptosis in Human Leukemia NB4 Cells by Inhibiting Glycogen Synthase Kinase-3 Beta. In this study, we aimed to understand whether LiCl exerts anticancer effects on choroidal melanoma cells and elucidate the underlying molecular mechanisms.
Methods
Human choroidal melanoma cells were treated with LiCl, and cell survival was assessed with MTT assays. Cell reproductive viability was measured by plate colony formation assays. Cell apoptosis was evaluated using flow cytometry, and proteins were detected using western blotting. A human choroidal melanoma xenograft model was established to demonstrate the effect of LiCl on human choroidal melanoma in vivo.
Results
We found that LiCl inhibited cell survival and clonogenic potential and induced apoptosis in human choroidal melanoma cells. LiCl also reduced the proliferation of choroidal melanoma cells in vivo. Moreover, the upregulation of NOXA and downregulation of Mcl-1 were responsible for LiCl-induced apoptosis. Mcl-1 overexpression obviously impaired LiCl-induced apoptosis and cleavage of caspase8, caspase9, caspase3 and PARP. Moreover, the protein expression of endoplasmic reticulum stress markers, including IRE1α, Bip, p-eIF2α, ATF4 and CHOP, were upregulated following treatment with LiCl. When CHOP expression was knocked down and cells were treated with LiCl, the protein level of NOXA was partially increased, and Mcl-1 expression was increased, while the cleavage of caspase8, caspase9, caspase3 and PARP that was induced by the LiCl was reduced compared with the vehicle treated group. Prolonged ER stress results in the activation of the apoptotic pathway.
Conclusions
In summary, LiCl induced an endoplasmic reticulum stress response while activating intrinsic apoptosis. Furthermore, the CHOP/NOXA/Mcl-1 axis contributed to LiCl-induced apoptosis both in vitro and in vivo. The present study provides important mechanistic insight into potential cancer treatments involving LiCl and enhances the understanding of human choroidal melanoma.
Journal Article