Publications by authors named "Wei-Wen Xu"

Introduction: Dexmedetomidine (DEX) has been demonstrated to inhibit inflammatory response and protect against multiorgan injury in various scenarios. The objectives of the present study were to ascertain whether DEX is able to attenuate acute lung injury (ALI) under heatstroke (HS), and to explore the underlying mechanism.

Methods: Male C57BL/6 mice were exposed to ambient temperature of 39.

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Rare autosomal aneuploidies (RAAs) can cause miscarriage or other pregnancy complications and lead to inconsistent results of noninvasive prenatal testing (NIPT), but many NIPT providers have not yet started to provide related services. Our aim was to develop a semiconductor sequencing platform (SSP)-based method for detecting RAAs when pregnant women performed NIPT. Fifty-three aneuploidy samples with verified karyotyping or array comparative genomic hybridization (aCGH) results were collected and subjected to RAAs detection using an SSP to develop a method by genomic sequencing.

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Glypican-3(GPC3), an oncofetal protein, is a potential novel marker for hepatocellular carcinoma (HCC). In this study, we attempted to establish a new method to detect serum GPC3 using the antibodies identified in our previous research, and then evaluated its clinical application for the diagnosis of HCC. Herein, a sandwich time-resolved fluorescence immunoassay (TRFIA) for detecting serum GPC3 was developed.

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Procalcitonin (PCT) is a current, frequently-used marker for severe bacterial infection. The aim of this study was to develop a cost-effective detection kit for rapid quantitative and on-site detection of PCT. To develop the new PCT quantitative detecting kit, a double-antibody sandwich immunofluorescent assay was employed based on time-resolved immunofluorescent assay (TRFIA) combined with lateral flow immunoassay (LFIA).

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Background: The human epididymal secretory protein 4 (HE4) is a novel, verified biomarker for the early diagnosis of ovarian cancer.

Methods: Magnetic beads were coated with capture antibodies and were used with acridinium ester labeled detection antibodies in a sandwich-type immunoassay. The patient's HE4 serum levels were measured simultaneously with the chemiluminescence immunoassay (CLIA) kit we developed and electrochemiluminescence immunoassay (ECLIA) kit from Roche (Mannheim, Germany).

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Background & Aims: Liver injury is a common complication of heat stroke (HS), and often constitutes a direct cause for patient death. The cellular and molecular mechanism underlying HS-induced liver injury remains unclear. Recent evidence indicates that inflammasome plays an important role in mediating sterile inflammation triggered by tissue damage.

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Article Synopsis
  • Glypican-3 (GPC3) is a promising biomarker for diagnosing hepatocellular carcinoma (HCC), but no effective clinical detection kit currently exists, motivating this study to create one.
  • The researchers developed a double antibodies sandwich chemiluminescent immunoassay to detect serum GPC3 and evaluated its effectiveness using various concentrations and comparisons with other markers like alpha fetoprotein (AFP) and CK19.
  • The results showed that the new GPC3 assay has high sensitivity (54.2%) and specificity (99.4%) for HCC, and when combined with AFP and CK19, significantly enhances diagnostic accuracy (90.6%).
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  • Hepatitis B virus (HBV) is a significant health threat, and the hepatitis B surface antigen (HBsAg) is crucial for diagnosing infections, necessitating a precise and efficient testing method.
  • A new assay called AlphaLISA was created to measure HBsAg, utilizing monoclonal antibodies to ensure sensitivity to virus mutants and optimize testing conditions.
  • The AlphaLISA assay showed excellent performance with a detection range of 0.04 to 100 IU/ml and a sensitivity of 0.01 IU/ml, outperforming traditional tests and paving the way for future biomarker developments.
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  • * Researchers developed monoclonal antibodies (MAbs) against GPC3 using hyperimmune BALB/c mice, screening them through enzyme-linked immunosorbent assay (ELISA).
  • * A total of 13 mouse hybridomas producing these MAbs were established and characterized, suggesting their potential use in future research on GPC3 and HCC.
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Background: Aberrant CpG island hypermethylation is a major epigenetic mechanism that can inactivate the transcription of cancer-related genes.

Purpose: This study aimed to investigate whether Oct-6 transcription was regulated by CpG island methylation in hepatocellular carcinoma (HCC).

Methods: Quantitative real-time PCR and the MassARRAY platform (Sequenom) were employed in 38 HCC tissues samples and four cell lines.

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Alterations of human leukocyte antigen (HLA) class II molecules are relevant to the development of breast cancer and metastatic progression. However, the role of HLA class II polymorphisms in the pathogenesis and progression of breast cancer is unclear. This study aimed to investigate the association between HLA class II variants and breast cancer susceptibility and prognosis in a Chinese population.

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  • Free beta-hCG is a crucial serum marker for pregnancy screening that varies in median levels by ethnicity; this study focuses on Chinese women.
  • A new one-step assay using monoclonal antibodies and Eu(3+) chelates was developed and tested on over 24,000 serum samples from pregnant women between 8-20 weeks gestation.
  • The assay showed high sensitivity and accuracy, with results indicating that free beta-hCG levels are higher in mainland Chinese women compared to other populations, aiding in the establishment of ethnic-specific reference values.
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Objective: To prepare a rapid and sensitive diagnostic kit for detection of CA50 based on time-resolved fluoroimmunoassay.

Methods: A sandwich-TRFIA diagmostic kit was developed using anti-CA50 monoclonal antibody and all parameters of the kit were evaluated.

Results: The linear measurement range of the kit was (5 - 300) U/ml.

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Objective: To screen and identify mimetic peptides of Plasmodium falciparun-infected erythrocyte membrane surface protein 1 in order to explore anti-adhesive agent against cerebral malaria.

Methods: Phage-borne peptide KLYLIAEGSVAA was used as panning targets to select target binders in a disulfide-constrained heptapeptides library. Three rounds of biopanning were carried out and then ELISA and competitive ELISA were used to evaluate the binding character between phage-borne peptides and ICAM-1.

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Objective: To prepare time-resolved fluoroimmunoassay (TRFIA) kit for detecting human alpha-fetoprotein (hAFP).

Methods: Sandwich TRFIA kit for hAFP detection was developed using monoclonal antibody of anti-AFP.

Results: AFP-TRFIA kit was capable of detecting AFP within the range of 1-1 000 U/ml with sensitivity of 0.

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Aim: To obtain bioactive ICAM-1 mimetic peptide.

Methods: Phages displaying P1 and P2 were prepared by phage amplication and PEG precipitation. The binding between phage-displayed peptides and anti-ICAM-1 mAb 15.

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Objective: To identify the binding site on ICAM-1 to PRBCs in order to explore anti-adhesive agent against cerebral malaria.

Methods: Monoclonal antibody 15.2 against ICAM-1 domain 1 was chosen as target molecule to screen mimetic peptides of ICAM-1 from a 12-mer random peptide library.

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