ArticleEuropean journal of nuclear medicine and molecular imaging2026
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Article in European journal of nuclear medicine and molecular imaging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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9 authors.
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Abstract
purposeCholesterol 24-hydroxylase (C24H) is central to brain cholesterol metabolism and is thought to be altered in many neurodegenerative diseases, including Alzheimer's disease (AD). Only two fluorinated C24H-targeting PET radioligands, [¹⁸F]CHL-2205 and [¹⁸F]T008, have recently entered clinical use. Direct comparison is needed to guide radiotracer selection for future translational studies.
methodsDynamic PET imaging was performed using either [¹⁸F]CHL-2205 or [¹⁸F]T008 in parallel conditions in cynomolgus macaques, healthy rats, the TgF344-AD rat model, and C24H-overexpressing mice. Arterial blood sampling enabled full kinetic modeling in healthy rats and nonhuman primates. An image-derived input function was validated in rats, and the specific binding was evaluated under C24H saturation using soticlestat.
results[¹⁸F]CHL-2205 and [¹⁸F]T008 showed similar metabolism profiles in either macaques or rats. In macaques, brain uptake values (V
conclusionAcross species and models, both radioligands demonstrated appropriate characteristics for imaging C24H in vivo. However, [¹⁸F]CHL-2205 generally displayed higher specific binding and appeared more sensitive to detect moderate increases in C24H expression.
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