ArticleJournal of anatomy2026
Quantitative analysis of intrarenal nerve-associated profiles in the human foetal kidney between 14 and 30 gestational weeks: An S100 immunohistochemical study.
Article in Journal of anatomy, 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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Abstract
Quantitative data on the spatial development of intrarenal S100-positive nerve-associated profiles in human foetal kidneys remain limited, despite the established importance of renal nerves. Building on the previously published semiquantitative observations, this study aimed to generate a quantitative, compartment-resolved map of S100-positive nerve-associated profiles in human foetal kidneys. Formalin-fixed, paraffin-embedded human foetal kidney specimens ranging from 14 to 30 gestational weeks were analysed using S100 immunohistochemistry. Based on gestational age, specimens were divided into three groups: ≤18 gestational weeks (G1, n=6), 19-24 gestational weeks (G2, n=6), and ≥ 25 gestational weeks (G3, n=6). Cortical maturation was assessed by measuring nephrogenic zone and maturation zone thickness and calculating the cortical maturation index (CMI). Morphometric analysis of cortical S100-positive nerve-associated profiles was performed using digital image analysis. Distribution patterns of S100-positive profiles were assessed qualitatively. Group-wise analysis demonstrated significantly lower cortical S100-positive area in G1 compared with G2 and G3 (median: 985 μm
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