ArticleFrontiers in cell and developmental biology2025
Microglia response and function in a chronic model of photoreceptor damage.
Article in Frontiers in cell and developmental biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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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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2 citing papers in PubMed.
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Authors and funding
5 authors.
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Abstract
Background: Retinal neurodegenerative diseases, including diabetic retinopathy and age-related macular degeneration, are characterized by the slow, chronic degeneration of photoreceptors. We previously used a chronic low light (CLL) exposure to model slow photoreceptor degeneration in adult zebrafish. Here, we investigate transcriptional, morphological, and functional responses of microglia in the CLL model. Methods: Microglia-specific gene expression analysis was mined from our previously reported 3' RNA-seq data performed at 8 time points during 28 days of CLL exposure. Morphological changes were performed on retinas collected at various time points using immunohistochemistry. Microglial inhibition was accomplished pharmacologically with dexamethasone and genetically using the Results: CLL induced dynamic, time-dependent upregulation of microglia-specific genes consistent with pro-inflammatory and pro-resolving function. Dexamethasone treatment reduced microglial numbers and exacerbated rod and cone outer segment damage, whereas Discussion: Overall, these findings suggest that microglial function in chronic retinal injury is context-dependent as pharmacological and genetic methods of inhibition produced contrasting outcomes depending upon microglial polarization.
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