2024-03-28T13:53:01Zhttp://buleria.unileon.es/oai/requestoai:buleria.unileon.es:10612/107972020-12-10T09:03:17Zcom_10612_17col_10612_18
Facultad de Ciencias Biologicas y Ambientales
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González Arto, Marta
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500
Vicente Carrillo, Alejandro
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500
Martínez Pastor, Felipe
700
500
0000-0003-2987-4302
Fernández Alegre, Estela
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500
Roca Aleu, Jorge
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500
Miró Roig, Jordi
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500
Rigau, Teresa
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500
Rodríguez Gil, Joan Enric
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500
Pérez Pé, Rosaura
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500
Muiño Blanco, María Teresa
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500
Cebrián Pérez, José A.
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500
Casao Gascón, Adriana
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Biologia Celular
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2016-11
2019-05-17T13:32:16Z
2019-05-17T13:32:16Z
2019-05-17
Theriogenology, 2016, vol. 86, n. 8
https://www.sciencedirect.com/science/article/pii/S0093691X16302746
http://hdl.handle.net/10612/10797
P. 1958-1968
Melatonin is a ubiquitous and multipurpose molecule, and one of its roles is to regulate reproduction in some seasonal mammals. Our group has previously reported the variation in the melatonin levels in ram seminal plasma along the year and identified MT1 and MT2 receptors in ram spermatozoa. The objective of this study was to elucidate whether the presence of melatonin receptors (MT1 and MT2) in the sperm plasma membrane, and melatonin in the seminal plasma is related to seasonal breeding. For this purpose, the presence of melatonin receptors and the levels of melatonin in seminal plasma have been examined in several species: donkey and stallion as long-day breeders; red deer as a wild, short-day, highly seasonal breeder (epididymal spermatozoa); bull as a conventional nonseasonal breeder; boar as a seasonal breeder under management techniques; and dog as possible a seasonal breeder not regulated by melatonin. We have detected measurable levels of melatonin in the seminal plasma of all ejaculated semen samples (from donkey, stallion, boar, bull, and dog). Also, and for the first time, we have demonstrated the presence of MT1 and MT2 melatonin receptors in the spermatozoa of all these species, regardless their type of reproduction or sperm source (ejaculated or epididymal), using indirect immunofluorescence techniques and Western blotting. Our findings suggest that melatonin and melatonin receptors may be universally distributed in the reproductive system of mammals and that the sperm melatonin receptors cells may not be necessarily related with seasonal reproduction. Furthermore, the presence of MT1 at the cytoplasmic droplet in immature ejaculated stallion spermatozoa found in one sample and epididymal red deer spermatozoa suggests that melatonin may be involved in specific functions during spermatogenesis and sperm maturation, like protecting spermatozoa from oxidative damage, this activity being mediated through these receptors.
SI
eng
Elsevier
Veterinaria
Donkey
Stallion
Boar
Bull
Deer
Dog
Melatonin receptors MT1 and MT2 are expressed in spermatozoa from several seasonal and nonseasonal breeder species
info:eu-repo/semantics/article
THUMBNAIL
82 MELATONIN RECEPTORS MT1 AND MT2 Theriogenology_086_1958_2016.pdf.jpg
82 MELATONIN RECEPTORS MT1 AND MT2 Theriogenology_086_1958_2016.pdf.jpg
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TEXT
82 MELATONIN RECEPTORS MT1 AND MT2 Theriogenology_086_1958_2016.pdf.txt
82 MELATONIN RECEPTORS MT1 AND MT2 Theriogenology_086_1958_2016.pdf.txt
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82 MELATONIN RECEPTORS MT1 AND MT2 Theriogenology_086_1958_2016.pdf
82 MELATONIN RECEPTORS MT1 AND MT2 Theriogenology_086_1958_2016.pdf
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10612/10797
oai:buleria.unileon.es:10612/10797
2020-12-10 10:03:17.415
BULERIA. Repositorio Institucional de la Universidad de León
buleria@unileon.es
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