Changes in metabolism are associated with several prevalent and rare diseases, like Hunter syndrome (MPS II). These alterations result in changes in mitochondrial function, therefore having non-invasive imaging biomarkers to detect this pathophysiological hallmark is a key objective of translational medicine. Here we report the synthesis and in vivo evaluation of the [F]berberine analogue ([F]BEAN), in both wildtype animals and a mouse model of Hunter's disease. PET/CT imaging revealed that [F]BEAN could detect mitochondrial dysfunction in the heart, liver, and brain of Hunter's disease (Ids KO) mice. These data suggest that [F]BEAN may be a viable translational PET biomarker for the imaging of diverse pathologies that have impaired mitochondrial function.
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http://dx.doi.org/10.1016/j.bmcl.2025.130142 | DOI Listing |
Am J Speech Lang Pathol
March 2025
Communication Disorders and Sciences, University of Oregon, Eugene.
Purpose: Medically tailored transitional foods (TFs) may be a clinically viable alternative to pureed consistency for individuals requiring texture-modified foods. However, little remains known about the performance of TFs during the swallow. The purpose of this investigation was to describe oropharyngeal swallowing physiology in patients with dysphagia during consumption of TFs as compared to pureed solids.
View Article and Find Full Text PDFJ Am Soc Mass Spectrom
March 2025
The Maastricht MultiModal Molecular Imaging Institute (M4i), Division of Imaging Mass Spectrometry, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands.
Evaluating tissue distribution of Positron Emission Tomography (PET) tracers during their development conventionally involves autoradiography techniques, where radioactive compounds are used for visualization and quantification in tissues during preclinical development stages. Mass Spectrometry Imaging (MSI) offers a potential alternative, providing spatial information without the need for radioactivity with a similar spatial resolution. This study aimed to optimize a MSI sample preparation protocol for assessing PET tracer candidates with a focus on two compounds: UCB-J and UCB2400.
View Article and Find Full Text PDFJ Immunol
February 2025
Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.
Ammonia fertilizer, primarily composed of ammonium chloride, is widely used in pond fish farming throughout Asia. Despite the belief that it possesses antiviral properties, the underlying mechanisms remain unclear. Ammonium chloride (NH4Cl) has been demonstrated to act as a potent inhibitor of autophagy, which is used by many fish viruses to promote their proliferation during infection.
View Article and Find Full Text PDFFood Addit Contam Part A Chem Anal Control Expo Risk Assess
March 2025
Food Toxicology and Contaminants Department, National Research Centre, Giza, Egypt.
Citrus fruits, known for their vibrant flavours and health benefits, are susceptible to fungal attacks, particularly from toxigenic fungi, which pose a significant pre- and post-harvest hazard. However, aromatic oils and their nanoparticles may effectively address this issue. Marjoram and fennel oils, alongside their nanoparticles, were extracted, and their aromatic constituents and antimicrobial activities were evaluated.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
March 2025
Laboratorio 1. Centro de Investigación del Cáncer, Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas-Universidad de Salamanca and Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Salamanca 37007, Spain.
We evaluated the in vivo therapeutic efficacy and tolerability of BI-3406-mediated pharmacological inhibition of SOS1 in comparison to genetic ablation of this universal Ras-GEF in various KRAS-dependent experimental tumor settings. Contrary to the rapid lethality caused by SOS1 genetic ablation in SOS2 mice, SOS1 pharmacological inhibition by its specific inhibitor BI-3406 did not significantly affect animal weight/viability nor cause noteworthy systemic toxicity. Allograft assays using different KRAS cell lines showed that treatment with BI-3406 impaired RAS activation and RAS downstream signaling and decreased tumor burden and disease progression as a result of both tumor-intrinsic and -extrinsic therapeutic effects of the drug.
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