Distribution of hypothalamic vasoactive intestinal peptide immunoreactive neurons in the male native Thai chicken

被引：4
|
作者：
Kamkrathok, Boonyarit [1 ]
Sartsoongnoen, Natagarn [2 ]
Prakobsaeng, Nattiya [3 ]
Rozenboim, Israel [4 ]
Porter, Tom E. [5 ]
Chaiseha, Yupaporn [1 ]
机构：
[1] Suranaree Univ Technol, Sch Biol, Inst Sci, 111 Univ Ave, Nakhon Ratchasima 30000, Thailand
[2] Nakhon Ratchasima Rajabhat Univ, Fac Sci & Technol, Program Biol, Nakhon Ratchasima, Thailand
[3] Rajabhat Maha Sara kham Univ, Fac Agr Technol, Program Anim Sci, Maha Sarakham, Thailand
[4] Hebrew Univ Jerusalem, Fac Agr, Dept Anim Sci, Rehovot, Israel
[5] Univ Maryland, Dept Anim & Avian Sci, College Pk, MD USA
来源：
ANIMAL REPRODUCTION SCIENCE | 2016年 / 171卷
关键词：
Birds; Male; Prolactin; Testosterone; Vasoactive intestinal peptide; WHITE LEGHORN ROOSTERS; PIGEON COLUMBA-LIVIA; DARK-EYED JUNCOS; PROLACTIN SECRETION; REPRODUCTIVE-CYCLE; PARENTAL CARE; ACTIVE IMMUNIZATION; CALLITHRIX-JACCHUS; GALLUS-DOMESTICUS; PLASMA PROLACTIN;
D O I：
10.1016/j.anireprosci.2016.05.010
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
Avian prolactin (PRL) secretion is under stimulatory control by the PRL-releasing factor (PRF), vasoactive intestinal peptide (VIP). The neuroendocrine regulation of the avian reproductive system has been extensively studied in females. However, there are limited data in males. The aim of this study was to elucidate the VIPergic system and its relationship to PRL and testosterone (T) in the male native Thai chicken. The distributions of VIP-immunoreactive (-ir) neurons and fibers were determined by immunohistochemistry. Changes in VIP-ir neurons within the nucleus inferioris hypothalami (IH) and nucleus infundibuli hypothalami (IN) areas were compared across the reproductive stages. Plasma levels of PRL and T were determined by enzyme-linked immunosorbent assay and then compared across the reproductive stages. The results revealed that the highest accumulations of VIP-ir neurons were concentrated only within the IH-IN, and VIP-ir neurons were not detected within other hypothalamic nuclei. Within the IH-IN, VIP-ir neurons were low in premature and aging males and markedly increased in mature males. Changes in VIP-ir neurons within the IH-IN were directly mirrored with changes in PRL and T levels across the reproductive stages. These results suggested that VIP neurons in the IH-IN play a regulatory role in year-round reproductive activity in males. The present study also provides additional evidence that VIP is the PRF in non-seasonal, continuously breeding equatorial species. (C) 2016 Elsevier B.V. All rights reserved.
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收藏
页码：27 / 35
页数：9
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