An immunohistochemical study of vasoactive intestinal peptide and neuropeptide Y in the sheep pineal gland during prenatal development

Abstract

In this immunohistochemical study we investigate the presence of vasoactive intestinal peptide (VIP) and neuropeptide Y (NPY) during embryonic development in the sheep pineal gland. We use ten ovine embryos at different stages of development (117 to 150 days of prenatal development). The VIP positive fibers were observed along the blood vessels, entering… (More)

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