Publications by authors named "Ximeng Ma"
Article Synopsis
- 5,10-Methylenetetrahydrofolate reductase (MTHFR) is crucial for converting a specific compound in the folate cycle, impacting homocysteine levels in the body.
- A patient with epilepsy showed elevated homocysteine and carried two genetic variants in the MTHFR gene, which were analyzed for their effects on gene splicing.
- The study reveals complex splicing patterns and emphasizes the importance of monitoring homocysteine levels, even in family members without noticeable symptoms, as they may still carry risks associated with MTHFR deficiency.
Article Synopsis
- - Autosomal recessive spinal muscular atrophy (SMA) often leads to severe infant mortality, primarily linked to deletions in the SMN1 gene, particularly exon 7, but routine tests may miss other crucial genetic variants.
- - Two Chinese SMA patients showed developmental delays and reduced muscle strength; standard tests revealed atypical results, with only one SMN1 copy identified, suggesting misdiagnosis.
- - By employing RNA sequencing and ultra-long read sequencing, researchers discovered a rare deletion of exons 2a-5 in both patients, highlighting the need for advanced genetic testing in confirming SMA diagnoses.
Article Synopsis
- * Transcriptomic analysis showed that β-ionone inhibits the expression of acetylcholinesterase (AchE) mRNA, resulting in higher acetylcholine (Ach) levels, indicating its role as an AchE inhibitor.
- * Experiments confirmed that β-ionone reduces AchE activity, causing increased Ach levels that affect Daphnia's physiological functions, including heart rate, feeding, and digestion.
Background: Hematuria is a common condition in clinical practice of pediatric patients. It is related to a wide spectrum of disorders and has high heterogeneity both clinically and genetically, which contributes to challenges of diagnosis and lead many pediatric patients with hematuria not to receive accurate diagnosis and early management.
Methods: In this single center study, 42 children with hematuria were included in Tianjin Children's Hospital between 2019 and 2020.
β-cyclocitral is one of the major compounds in cyanobacterial volatile organic compound (VOCs) and can poison other aquatic organisms. To investigate the effect of β-cyclocitral on cyanobacterial-grazer interactions, Daphnia sinensis was fed Microcystis aeruginosa and exposed to β-cyclocitral. Our present study demonstrated that M.
View Article and Find Full Text PDF[Bioinformatics of key genes and signaling pathways in macrophages in patients with rheumatoid arthritis].
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi
December 2022
Objective To screen key genes and signaling pathways in macrophages from patients with rheumatoid arthritis(RA) by bioinformatics. Methods Download the gene chip of synovial macrophages of RA patients from the Gene Expression Omnibus (GEO) database, obtain differentially expressed genes through the GEO2R function, and use the search tool for the retrival of interacting genes/proteins (STRING) database to construct a protein-protein interaction (PPI) network. Enrichment analysis was performed on key genes in Gene Ontology (GO) and Kyoto Encyclopedia of Gene and Genomics (KEGG).
View Article and Find Full Text PDFRheumatoid arthritis (RA) is a systemic disease dominated by inflammatory synovitis. RA synovial macrophages tend undergo M1-type macrophage polarization. Then, polarized M1-type macrophages secrete abundant pro-inflammatory cytokines, causing joint and cartilage destruction.
View Article and Find Full Text PDFBackground: Gliomas are a group of primary intracranial tumors with high morbidity and mortality. The previous researches indicated a crucial role of CKS2 (cyclin-dependent kinases regulatory subunit 2) in hepatocellular carcinoma and breast cancer; however, little is known about the molecular mechanism of CKS2 in the tumorigenesis and epithelial-mesenchymal transition-like (EMT) process in glioma.
Methods: Datasets for bioinformatics analysis were obtained from the GEO, TCGA and CGGA databases.
To observe the effect of Xinfeng Capsules on rheumatoid arthritis (RA) B lymphocytes,inflammatory mediators,FAK/CAPN/PI3K pathway,in order to explore the mechanism of Xinfeng Capsules in improving clinical symptoms of RA.Joint and systemic symptoms of RA patients were observed,and laboratory indicators[hemoglobin (HGB),platelet count (PLT),erythrocyte sedimentation (ESR),immunoglobulin (Ig) G,Ig A,Ig M,rheumatoid factor (RF),anti-cyclic citrulline antibody (CCP-AB),C-reactive protein (CRP)]were detected.ELISA was used to detect serum interleukin (IL)-1β，IL-10,IL-33,chemokine 5 (CCL5),and vascular endothelial growth factor (VEGF).
View Article and Find Full Text PDFAims: Experimental evidence demonstrated a crucial role of TROAP (Trophinin-associated protein) in regulating the cell proliferation of multiple tumors, while TROAP expression and function were largely unknown in glioma. We aimed to investigate the oncogenic role of TROAP and its potential mechanisms in gliomagenesis.
Methods: Four gene expression databases (GEO, TCGA, GTEx and CCLE) were enrolled in our study and used for TROAP expression and survival analysis.
The goal of this meta-analysis was to identify the temozolomide (TMZ) regimen with optimal efficacy and tolerance for treatment of recurrent high-grade glioma (HGG). The PubMed and EMBASE databases were searched from the earliest records to February 2015, which identified 33 studies with 1760 participants that met the inclusion criteria. The standard schedule and three most common dose-dense regimens of TMZ therapy for recurrent HGG were included in this meta-analysis.
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