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Blood-based diagnosis of pediatric tuberculosis: a prospective cohort study in South Africa and Dominican Republic.
J Infect
January 2025
Center for Cellular and Molecular Diagnostics, Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA, USA. Electronic address:
Objectives: Pediatric tuberculosis (TB) diagnosis is complicated by challenges in obtaining invasive respiratory specimens that frequently contain few Mycobacterium tuberculosis (Mtb) bacilli. We report the diagnostic performance of an Mtb antigen-derived peptide (MAP-TB) assay and its ability to monitor TB treatment response.
Methods: Study cohorts enrolled children who presented with presumptive TB at two hospitals in South Africa from 2012 to 2017 (157 children aged <13 years) and at community-based clinics in the Dominican Republic from 2019 to 2023 (101 children aged <18 years).
Target Identification of Marine Natural Product Odoamide: Odoamide Induces Apoptotic Cell Death by Targeting ATPase Na+/K+ Transporting Subunit Alpha 1 (ATP1A1).
Chembiochem
January 2025
Eisai Co Ltd, Tsukuba Research Laboratories, JAPAN.
Marine natural products show a large variety of unique chemical structures and potent biological activities. Elucidating the target molecule and the mechanism of action is an essential and challenging step in drug development starting with a natural product. Odoamide, a member of aurilide-family isolated from Okinawan marine cyanobacterium, has been known to exhibit highly potent cytotoxicity against various cancer cell lines.
View Article and Find Full Text PDFGold nanoparticles supported onto zwitterionic polymer capillary monoliths meant for efficient enrichment of microcystins in water.
Talanta
December 2024
Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350116, China; International (HongKong Macao and Taiwan) Joint Laboratory on food safety and environmental analysis, Fuzhou, 350116, Fuzhou University, China; Engineering Technology Research Center on Reagent and Instrument for Rapid Detection of Product Quality and Food Safety, Fuzhou, 350116, China. Electronic address:
The release of microcystin (MCs) in aquatic ecosystems poses a substantial risk to the safety of irrigation and drinking water. In view of the challenges associated with monitoring MCs in water bodies, given their low concentration levels (μg/L to ng/L) and the presence of diverse matrix interferences, there is an urgent need to develop an efficient, cost-effective and selective enrichment technique for MCs prior to its quantification. In this work, a gold nanoparticles (AuNPs)-functionalized zwitterionic polymer monolith was described and further applied for the affinity enrichment of MCs.
View Article and Find Full Text PDFIntegration of paper-based colorimetric microdevice and magnetic nanoparticles affinity for high-throughput capture of antimicrobial resistance-reversing agent from complex natural products.
Biosens Bioelectron
December 2024
Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China. Electronic address:
Efficient analysis of active ingredient in complex natural products is crucial for drug discovery, but developing a simple method for this is challenging. The discovery of drugs against bacterial resistance is urgent because drug-resistant bacteria produce β-lactamases, which inactivate antibiotics and increase infection risks, particularly the AmpC β-lactamase. Here, an integrated analytical model based on colorimetric sensing and magnetic nanoparticles (MNPs) affinity chromatography was developed for screening AmpC β-lactamase inhibitors.
View Article and Find Full Text PDFMulti-modal comparison of molecular programs driving nurse cell death and clearance in Drosophila melanogaster oogenesis.
PLoS Genet
January 2025
Department of Biology, Boston University, Boston Massachusetts, United States of America.
The death and clearance of nurse cells is a consequential milestone in Drosophila melanogaster oogenesis. In preparation for oviposition, the germline-derived nurse cells bequeath to the developing oocyte all their cytoplasmic contents and undergo programmed cell death. The death of the nurse cells is controlled non-autonomously and is precipitated by epithelial follicle cells of somatic origin acquiring a squamous morphology and acidifying the nurse cells externally.
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