Abstract
We have studied the distribution of calcium-binding proteins in the magnocellular neurosecretory nuclei of nonapeptidergic neurosecretory nuclei of the preoptic–hypothalamic complex in a tortoise (Testudo horsfieldi) and a pond turtle (Emys orbicularis) using immunohistochemistry. We have found that different types of cells in the paraventricular and supraoptic nuclei predominantly express calbindin and, to a lesser extent, calretinin, but not parvalbumin. The selective calbindin/calretinin control of the neurohormone secretion in these hypothalamic nuclei is an evolutionary conservative feature typical of reptiles and mammals.
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Original Russian Text © M.G. Belekhova, N.B. Kenigfest, E.V. Chernigovskaya, N.P. Veselkin, 2017, published in Doklady Akademii Nauk, 2017, Vol. 473, No. 1, pp. 101–104.
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Belekhova, M.G., Kenigfest, N.B., Chernigovskaya, E.V. et al. Selective specificity of calcium-binding proteins calbindin and calretinin expression in the magnocellular neurosecretory hypothalamic nuclei of tortoises and turtles. Dokl Biol Sci 473, 80–83 (2017). https://doi.org/10.1134/S0012496617020016
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DOI: https://doi.org/10.1134/S0012496617020016