GnIH and GnRH expressions in the central nervous system and pituitary of Indian major carp, Labeo rohita during ontogeny: An immunocytochemical study

被引:34
作者
Biswas, Saikat [1 ]
Jadhao, Arun G. [1 ]
Pinelli, Claudia [2 ]
Palande, Nikhil V. [1 ]
Tsutsui, Kazuyoshi [3 ,4 ]
机构
[1] RTM Nagpur Univ, Dept Zool, Nagpur 440033, Maharashtra, India
[2] Univ Naples 2, Dept Environm Biol & Pharmaceut Sci & Technol, I-81100 Caserta, Italy
[3] Waseda Univ, Dept Biol, Lab Integrat Brain Sci, Tokyo 1628480, Japan
[4] Waseda Univ, Ctr Med Life Sci, Tokyo 1628480, Japan
关键词
GnIH; GnRH; Pituitary; Ontogeny; Carp; GONADOTROPIN-INHIBITORY HORMONE; LPXRF-AMIDE PEPTIDES; IDENTIFICATION; LOCALIZATION; GOLDFISH; BRAIN; DISCOVERY;
D O I
10.1016/j.ygcen.2014.06.005
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Gonadotropin-releasing hormone (GnRH) is the major hypothalamic neuropeptide stimulating gonadotropin secretion in vertebrates. In 2000, gonadotropin-inhibitory hormone (GnIH) was discovered as a hypothalamic neuropeptide that inhibits gonadotropin secretion in birds. Subsequent studies have shown that GnIH is present in the brain of other vertebrates. We show for the first time GnIH immunoreactivity in the central nervous system and pituitary during development of Indian major carp, Labeo rohita and compare it with the localization of GnRH. GnIH and GnRH immunoreactivities were observed from the olfactory system to spinal cord throughout development. In the brain, both neuropeptides were localized in the telencephalon, diencephalon including the preoptic area and rhombencephalon. The localization of GnIH and GnRH in the pituitary suggests that these neuropeptides are involved in the regulation of pituitary hormones by an autocrine manner during development. In addition, the presence of GnIH and GnRH in several other brain regions including the olfactory system suggests their involvement in the regulation of other physiological functions. (C) 2014 Elsevier Inc. All rights reserved.
引用
收藏
页码:88 / 92
页数:5
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