ArticleThe Journal of comparative neurology2026
Characterization of the Spinal Cord of the Annual Fish Garcialebias charrua: Morphology, Cell Proliferation, and NADPH-Diaphorase Activity.
Article in The Journal of comparative neurology, 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
The spinal cord plays a central role in sensorimotor integration and exhibits substantial diversity across vertebrates in relation to ecological and behavioral demands. In teleost fish, however, detailed morphological and cellular analyses of the adult spinal cord remain scarce. Here, we provide the first comprehensive characterization of the adult spinal cord of the annual fish Garcialebias charrua, a species displaying pronounced environmental adaptation and sexual dimorphism. Using adult males and females, the spinal cord was systematically partitioned into five equally sized rostrocaudal regions (SI-SV) to evaluate regional variation in morphology, neurochemical organization, and cell proliferation. We analyzed gross morphology and cross-sectional features, the distribution and morphology of NADPH-diaphorase-positive (NADP-d
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