Spatiotemporal sequence of appearance of NPFF-immunoreactive structures in the developing central nervous system of Xenopus laevis

Peptides
Jesús M LópezAgustín González

Abstract

Neuropeptide FF-like immunoreactive (NPFFir) cells and fibers were analyzed through development of Xenopus laevis. The first NPFFir cells appeared in the embryonic hypothalamus, which projected to the intermediate lobe of the hypophysis, the brainstem and spinal cord. Slightly later, scattered NPFFir cells were present in the olfactory bulbs and ventral telencephalon. In the caudal medulla, NPFFir cells were observed in the nucleus of the solitary tract only at embryonic and early larval stages. Abundant NPFFir cells and fibers were demonstrated in the spinal cord. The sequence of appearance observed in Xenopus shares many developmental features with mammals although notable differences were observed in the telencephalon and hypothalamus. In general, NPFF immunoreactivity developed earlier in amphibians than in mammals.

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Citations

Dec 30, 2014·Frontiers in Endocrinology·Guro Katrine SandvikFinn-Arne Weltzien
Jun 24, 2017·Journal of Leukocyte Biology·Syed F Hassnain WaqasTamás Röszer
Oct 14, 2021·Brain, Behavior and Evolution·Oscar Marín, Nerea Moreno

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