Nitrergic Neurons in the Spinal Cord of the Bottlenose Dolphin (Tursiops truncatus)

In this study, we used histochemical and immunohistochemical techniques to investigate the distribution of NADPH‐diaphorase (NADPH‐d) and nNOS in the spinal cord of the bottlenose dolphin (Tursiops truncatus). Cells with a fusiform‐shaped somata were numerous in the laminae I and II. The intermediolateral horn showed darkly‐stained cells with a multipolar morphology. Neurons with a multipolar or fusiform morphology were observed in the ventral horn. Multipolar and fusiform neurons were the most common cell types in lamina X. Nitrergic fibers were numerous especially in the dorsal and intermediolateral horns. The presence of nitrergic cells and fibers in different laminae of the spinal cord suggests that NO may be involved in spinal sensory and visceral circuitries, and potentially contribute to the regulation of the complex retia mirabilia. Anat Rec, 2013. © 2013 Wiley Periodicals, Inc.

Source: The Anatomical Record Part B: The New Anatomist - August 1, 2013 Category: Anatomy Authors: Cristiano Bombardi, Annamaria Grandis, Anna Gardini, Bruno Cozzi Tags: Full Length Article Source Type: research