Publications by authors named "Yan-mei Xu"

Chronic myeloid leukemia (CML) is a hematological tumor derived from hematopoietic stem cells. The aim of this study is to analyze the biological characteristics and identify the diagnostic markers of CML. We obtained the expression profiles from the Gene Expression Omnibus (GEO) database and identified 210 differentially expressed genes (DEGs) between CML and normal samples.

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The present study examined potential association between the daily intake and serum levels of copper (Cu), selenium (Se), and zinc (Zn) and the risk of osteoarthritis (OA) and rheumatoid arthritis (RA) using data from the National Health and Nutrition Examination Survey (NHANES). Daily intake and serum concentrations of Cu, Zn, and Se in 4200 adults from the 2011-2016 NHANES were examined and divided into normal, OA patients, and RA patients. The level of serum Cu was higher in OA and RA than in non-arthritis, while the levels of serum Se and Zn were no different in the three groups.

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Background And Purpose: Xin-Ji-Er-Kang (XJEK) is traditional Chinese formula presented excellent protective effects on several heart diseases, but the potential components and targets are still unclear. The aim of this study is to elucidate the effective components of XJEK and reveal its potential mechanism of cardioprotective effect in myocardial ischemia-reperfusion (MIR) injury.

Experimental Approach: Firstly, the key compounds in XJEK, plasma and heart tissue were analyzed by high resolution mass spectrometry.

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Article Synopsis
  • Scientists tested a treatment called Xin-Ji-Er-Kang (XJEK) on mice to see if it helps prevent heart damage after a heart attack, which hadn't been looked at before.
  • They created heart injury in mice and found that XJEK improved the heart's function and reduced inflammation and other harmful effects caused by the injury.
  • This study showed for the first time that XJEK can protect the heart from damage and suggests it could be useful in future research and treatments for heart problems.
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Accumulated genetic mutations are an important cause for the development of acute myeloid leukemia (AML), but abnormal changes in the inflammatory microenvironment also have regulatory effects on AML. Exploring the relationship between inflammatory response and pathological features of AML has implications for clinical diagnosis, treatment and prognosis evaluation. We analyzed the expression variation landscape of inflammatory response-related genes (IRRGs) and calculated an inflammatory response score for each sample using the gene set variation analysis (GSVA) algorithm.

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Cytoglobin (Cygb) is a globin molecule that is ubiquitously expressed in all tissues and has a protective role under oxidative stress. It has also been demonstrated to be effective in the treatment of alcoholic fatty liver disease (AFLD). In order to study the molecular mechanisms underlying its beneficial effects for the treatment of alcoholic liver, two‑dimensional electrophoresis and mass spectrometric analysis were performed on serum and liver tissues from an rat model of AFLD.

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Chronic myeloid leukemia (CML) is a malignancy that evolves through a multi-step process. Alternative splicing of several genes has been linked to the progression of the disease, but involvement of alternations in splicing profiles has not been reported. RNA-seq of peripheral blood mononuclear cell (PBMC) samples characterized the differentially expressed and spliced transcripts in five CML chronic phase (CP) and five blast phase (BP) patients, and five healthy controls.

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Imatinib mesylate (IM) resistance has become a major clinical problem for chronic myeloid leukaemia (CML). It is known that Bcl-x splicing is deregulated and is involved in multiple malignant cancer initiation and chemotherapy resistance, including CML. The aim of the present study was to correct the abnormal splicing of Bcl-x in CML and investigate the subsequent malignant phenotype changes, especially response to IM.

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Article Synopsis
  • * This study shows that exosomes from K562 leukemia cells carry microRNA miR-711, which negatively impacts the adhesion of BM-MSCs.
  • * Specifically, miR-711 decreases the expression of the adhesion molecule CD44 in BM-MSCs, leading to reduced adhesion capabilities when exposed to K562-derived exosomes.
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The plant hormone jasmonic acid (JA) has been recognized as an important promoter of leaf senescence in plants. However, upstream transcription factors (TFs) that control JA biosynthesis during JA-promoted leaf senescence remain unknown. In this study, we report the possible involvement of a TEOSINTE BRANCHED1/CYCLOIDEA/PCF (TCP) TF BrTCP7 in methyl jasmonate (MeJA)-promoted leaf senescence in Chinese flowering cabbage.

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Several lines of evidence have implicated the involvement of the phytohormone gibberellin (GA) in modulating leaf senescence in plants. However, upstream transcription factors (TFs) that regulate GA biosynthesis in association with GA-mediated leaf senescence remain elusive. In the current study, we report the possible involvement of a TEOSINTE BRANCHED1/CYCLOIDEA/PCF (TCP) TF BrTCP21 in GA-delayed leaf senescence in Chinese flowering cabbage.

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RBM10 regulates the expression of various genes, which are often mutated in male lung adenocarcinoma. The present study confirmed the association of the mutation at exon 10 with the clinicopathological data and prognosis of lung adenocarcinoma. The effect of mutant on regulating lung cancer cell growth and invasion was investigated .

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  • Chronic inflammation is linked to the development of esophageal squamous cell carcinoma (ESCC), leading researchers to explore the prognostic significance of various blood ratio markers in patients who underwent surgery.
  • A study involving 153 ESCC patients analyzed preoperative levels of albumin, fibrinogen, and different blood cell ratios to evaluate their effects on overall survival after three years.
  • Results showed that high levels of fibrinogen, dNLR, and PLR, along with low albumin and AFR, correlated with decreased survival rates; notably, a higher ADS score indicated a significantly shorter overall survival for patients.
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Background: The albumin to fibrinogen ratio (AFR) and C-reactive protein to albumin ratio (CAR) have emerged as useful biomarkers to predict systemic inflammation. The aim here is to investigate the relation between AFR/CAR and Disease Activity Score of 28 joints (DAS 28) in rheumatoid arthritis (RA).

Methods: This retrospective study included 160 patients with RA and 159 healthy controls.

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  • An ultra-rapid extraction method was developed to analyze 10 major triterpenoid saponins from Pulsatilla herbs using UPLC-MS/MS, resulting in efficient detection in just 6 minutes.
  • Compound 4 was identified as a specific glycoside with detailed characterization using high-resolution mass spectrometry and NMR techniques, showcasing enhanced ionization in positive mode.
  • The study employed hierarchical cluster analysis to differentiate between various Pulsatilla species based on saponin content, confirming the method's effectiveness for quality control.
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  • * Researchers discovered that exosomes (tiny particles released by cells) from imatinib-resistant CML cells can be taken up by sensitive CML cells, imparting drug resistance through the transfer of miR-365, a specific microRNA.
  • * The study shows that when sensitive CML cells receive miR-365 from resistant cells, they become less responsive to the drug and more likely to survive (i.e., less apoptosis), highlighting the role of exosomes in spreading drug resistance in CML.
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  • - Pleural effusion (PE) is a complication from various diseases like lung cancer and tuberculosis, but there's no effective way to determine its cause clinically.
  • - The study identified and compared exosomal microRNAs (miRNAs) in PE cases related to lung adenocarcinoma, tuberculosis, and benign conditions using deep sequencing and qRT-PCR techniques.
  • - A total of 171 miRNAs were found to differ among the PE types, with 11 showing significant differences, suggesting that specific miRNA profiles could serve as potential biomarkers for diagnosing the cause of PE in future studies.
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  • This study investigates the role of inflammatory biomarkers, particularly the fibrinogen/pre-Albumin ratio (FPR), in predicting the prognosis of gastric cancer (GC) patients undergoing surgery.
  • A total of 360 patients with stage II and III GC were analyzed to determine correlations between various biomarkers and overall survival (OS).
  • The results revealed that lower levels of albumin and higher FPR were linked to shorter OS, with FPR being identified as a significant prognostic factor, especially for stage III patients receiving chemotherapy.
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Background: Immunoglobulin A nephropathy (IgAN) is the most common type of primary glomerulonephritis in the world. Reliable biomarkers are required for the non-invasive diagnosis and monitoring of IgAN. This study aims to investigate the difference in urinary exosomal microRNA (miRNA) expression profiles between patients with IgA nephropathy (IgAN) and healthy controls, which may provide clues to identify novel potential non-invasive miRNA biomarkers for renal diseases.

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Ultra high performance liquid chromatography coupled with mass spectrometry and combining a tissue-smashing extraction technique was developed for the simultaneous quantitative analysis of 12 compounds in the roots of Pulsatilla chinensis. Among them, compound 6 was characterized and accurately quantified in this herb for the first time. The parameters of extraction condition were simultaneously optimized with a Box-Behnken design and Derringer's function.

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Objective: Previous studies have investigated the association between tumor necrosis factor-alpha (TNF-α) -308G/A polymorphism and risk of immune thrombocytopenia (ITP), but the reported results have been inconsistent. Thus, a systematic meta-analysis was performed to resolve this discrepancy.

Methods: Electronic databases and the cited references of the obtained published articles were manually searched.

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MicroRNAs (miRNAs) have been found to play important regulatory roles in various physiological and pathological processes. MiRNAs also exhibit high stability and are present at high concentrations in human bodily fluids. Consequently, miRNAs may represent attractive and novel diagnostic biomarkers for certain clinical conditions.

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Article Synopsis
  • * Recent studies focused on its effects in a rat model of ischemia/reperfusion-induced renal injury (I/RIRI), demonstrating that tanshinone IIA can protect renal function by reducing inflammatory markers such as TNF-α and IL-6.
  • * The research also revealed through various analyses (ELISA and western blot) that tanshinone IIA lowers the expression of harmful proteins associated with inflammation and cell death, highlighting its therapeutic potential in renal injury.
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The UV-B radiation on the surface of our planet has been enhanced due to gradual thinning of ozone layer. The change of solar spectrum UV-B radiation will cause damage to all kinds of terrestrial plants at certain degree. In this paper, taking breeding sorghum (Sorghum bicolor (L.

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  • The study developed an efficient UPLC-ESI-MS/MS method for analyzing 14 components in Bazibushen capsules using a specific column and temperature settings.
  • It employed a linear gradient elution with acetonitrile and acetic acid, achieving excellent linearity (r² > 0.9991) for all components.
  • The method demonstrated high accuracy, with recoveries between 97.89% and 101.9%, and low limits of quantification ranging from 0.11 to 4.52 ng/mL, making it suitable for routine analysis.
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