کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2799784 1568873 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Neuroendocrine control of spawning in amphibians and its practical applications
ترجمه فارسی عنوان
کنترل عصبی عضلانی از تخم ریزی در دوزیستان و کاربرد عملی آن
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی علوم غدد
چکیده انگلیسی


• Spawning requires the timed surge of luteinizing hormone from the pituitary.
• This is controlled by GnRH and many emerging neuropeptides and pituitary factors.
• Knowledge of neuroendocrine mechanisms has applications in amphibian conservation.

Across vertebrates, ovulation and sperm release are primarily triggered by the timed surge of luteinizing hormone (LH). These key reproductive events are governed by the action of several brain neuropeptides, pituitary hormones and gonadal steroids which operate to synchronize physiology with behaviour. In amphibians, it has long been recognized that the neuropeptide gonadotropin-releasing hormone (GnRH) has stimulatory effects to induce spawning. Extensive work in teleosts reveals an inhibitory role of dopamine in the GnRH-regulated release of LH. Preliminary evidence suggests that this may be a conserved function in amphibians. Emerging studies are proposing a growing list of modulators beyond GnRH that are involved in the control of spawning including prolactin, kisspeptins, pituitary adenylate cyclase-activating polypeptide, gonadotropin-inhibitory hormone and endocannabinoids. Based on these physiological data, spawning induction methods have been developed to test on selective amphibian species. However, several limitations remain to be investigated to strengthen the evidence for future applications. The current state of knowledge regarding the neuroendocrine control of spawning in amphibians will be reviewed in detail, the elements of which will have wide implications towards the captive breeding of endangered amphibian species for conservation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: General and Comparative Endocrinology - Volume 234, 1 August 2016, Pages 28–39
نویسندگان
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