Sacchini Simona, Bombardi Cristiano, Arbelo Manuel, Herráez Pedro
Veterinary Histology and Pathology, Institute of Animal Health and Food Safety (IUSA), Atlantic Center for Cetacean Research, Marine Mammals Health WOAH col Centre, University of Las Palmas de Gran Canaria, Veterinary School, Las Palmas, Spain.
Department of Morphology, Campus Universitario de San Cristobal, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.
Front Neuroanat. 2024 May 30;18:1382036. doi: 10.3389/fnana.2024.1382036. eCollection 2024.
The amygdala is a noticeable bilateral structure in the medial temporal lobe and it is composed of at least 13 different nuclei and cortical areas, subdivided into the deep nuclei, the superficial nuclei, and the remaining nuclei which contain the central nucleus (CeA). CeA mediates the behavioral and physiological responses associated with fear and anxiety through pituitary-adrenal responses by modulating the liberation of the hypothalamic Corticotropin Releasing Factor/Hormone.
Five dolphins of three different species, belonging to the family Delphinidae (three striped dolphins, one common dolphin, and one Atlantic spotted dolphin), were used for this study. For a precise overview of the CeA's structure, thionine staining and the immunoperoxidase method using calbindin D-28k were employed.
CeA extended mainly dorsal to the lateral nucleus and ventral to the striatum. It was medial to the internal capsule and lateral to the optic tract and the medial nucleus of the amygdala.
The dolphin amygdaloid complex resembles that of primates, including the subdivision, volume, and location of the CeA.
杏仁核是颞叶内侧一个显著的双侧结构，由至少13个不同的核团和皮质区域组成，可细分为深部核团、浅部核团以及包含中央核（CeA）的其余核团。中央核通过调节下丘脑促肾上腺皮质激素释放因子/激素的释放，介导与恐惧和焦虑相关的行为和生理反应。
本研究使用了三只不同种类的海豚，隶属于海豚科（三只条纹海豚、一只普通海豚和一只大西洋斑点海豚）。为了精确概述中央核的结构，采用了硫堇染色法和使用钙结合蛋白D-28k的免疫过氧化物酶法。
中央核主要延伸至外侧核的背侧以及纹状体的腹侧。它位于内囊的内侧，视束和杏仁核内侧核的外侧。
海豚的杏仁复合体与灵长类动物的相似，包括中央核的细分、体积和位置。
