2020
DOI: 10.1111/jfb.14269
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The opioid peptide dynorphin suppresses pituitary‐ovary axis in the tilapia Oreochromis mossambicus

Abstract: The opioid peptides are involved in the regulation of neuroendocrine functions in vertebrates. Nonetheless, the influence of an opioid peptide, dynorphin A (DYN), on reproduction in fish is understudied. The aim of this work was to study the influence of DYN on the pituitary‐ovary axis in Oreochromis mossambicus. Daily injections (ip) of 250 μg DYN kg−1 body weight for 22 days during the ovarian cycle caused a reduction in the intensity and the per cent area of luteinizing hormone (LH) immunoreactive content i… Show more

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Cited by 5 publications
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