Androgen and oestrogen receptors in the growing antlers velvet of adult and yearling pampas deer (Ozotoceros bezoarticus) males

To determine the presence, quantity and distribution of androgen (AR) and oestrogen receptors (ER) in the antler velvet (AV), samples were collected from adult and yearling pampas deer males, as well as skin from the ventrolateral abdominal area (ASK). Samples were analysed with ligand‐binding assay...

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Published in:Anatomia, histologia, embryologia histologia, embryologia, 2021-11, Vol.50 (6), p.947-955
Main Authors: Bielli, Alejandro, Freitas‐de‐Melo, Aline, Genovese, Patricia, Villagrán, Matías, Tasende, Celia, Ungerfeld, Rodolfo
Format: Article
Language:English
Subjects:
Adults
Androgens
Antlers
cervid
endocrine regulation
Epidermis
Epithelium
Immunohistochemistry
Males
Ozotoceros bezoarticus
Sebaceous gland
sex steroids
Skin
stags
steroid activity
Stroma
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container_title Anatomia, histologia, embryologia
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creator Bielli, Alejandro
Freitas‐de‐Melo, Aline
Genovese, Patricia
Villagrán, Matías
Tasende, Celia
Ungerfeld, Rodolfo
description To determine the presence, quantity and distribution of androgen (AR) and oestrogen receptors (ER) in the antler velvet (AV), samples were collected from adult and yearling pampas deer males, as well as skin from the ventrolateral abdominal area (ASK). Samples were analysed with ligand‐binding assays for AR and ER activity and processed for AR and ERβ immunohistochemistry. There was more content of AR in adults than in yearling males (p = 0.02), as well as a category and type of tissue interaction (p = 0.03). There was more ER content in adults than in yearling males (p = 0.005) and in the AV than in the skin (p = 0.0001). The AR‐positive score (PS) was greater in AV than in ASK in the surface stroma (p = 0.0007). In the intermediate epidermis, the AR PS was greater in adults than in yearling males (p = 0.04) and in the ASK than in the AV (p 
doi_str_mv 10.1111/ahe.12738
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Samples were analysed with ligand‐binding assays for AR and ER activity and processed for AR and ERβ immunohistochemistry. There was more content of AR in adults than in yearling males (p = 0.02), as well as a category and type of tissue interaction (p = 0.03). There was more ER content in adults than in yearling males (p = 0.005) and in the AV than in the skin (p = 0.0001). The AR‐positive score (PS) was greater in AV than in ASK in the surface stroma (p = 0.0007). In the intermediate epidermis, the AR PS was greater in adults than in yearling males (p = 0.04) and in the ASK than in the AV (p &lt; 0.0001). There was a male category and type of tissue interaction for AR PS in the sebaceous glands (p = 0.014). The ERβ PS in the surface stroma was greater in ASK than in AV (p = 0.004) and tended to be greater in yearling than in adult males (p = 0.093). The ERβ PS in the intermediate epithelium and the sebaceous glands was greater in adults than in yearlings (p = 0.004 and p = 0.007, respectively). In conclusion, we reported for the first time the presence of AR and ER in the velvet skin of growing antlers in pampas deer males. Therefore, the velvet skin is sensitive to both androgens and oestrogens. 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Samples were analysed with ligand‐binding assays for AR and ER activity and processed for AR and ERβ immunohistochemistry. There was more content of AR in adults than in yearling males (p = 0.02), as well as a category and type of tissue interaction (p = 0.03). There was more ER content in adults than in yearling males (p = 0.005) and in the AV than in the skin (p = 0.0001). The AR‐positive score (PS) was greater in AV than in ASK in the surface stroma (p = 0.0007). In the intermediate epidermis, the AR PS was greater in adults than in yearling males (p = 0.04) and in the ASK than in the AV (p &lt; 0.0001). There was a male category and type of tissue interaction for AR PS in the sebaceous glands (p = 0.014). The ERβ PS in the surface stroma was greater in ASK than in AV (p = 0.004) and tended to be greater in yearling than in adult males (p = 0.093). 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Samples were analysed with ligand‐binding assays for AR and ER activity and processed for AR and ERβ immunohistochemistry. There was more content of AR in adults than in yearling males (p = 0.02), as well as a category and type of tissue interaction (p = 0.03). There was more ER content in adults than in yearling males (p = 0.005) and in the AV than in the skin (p = 0.0001). The AR‐positive score (PS) was greater in AV than in ASK in the surface stroma (p = 0.0007). In the intermediate epidermis, the AR PS was greater in adults than in yearling males (p = 0.04) and in the ASK than in the AV (p &lt; 0.0001). There was a male category and type of tissue interaction for AR PS in the sebaceous glands (p = 0.014). The ERβ PS in the surface stroma was greater in ASK than in AV (p = 0.004) and tended to be greater in yearling than in adult males (p = 0.093). The ERβ PS in the intermediate epithelium and the sebaceous glands was greater in adults than in yearlings (p = 0.004 and p = 0.007, respectively). In conclusion, we reported for the first time the presence of AR and ER in the velvet skin of growing antlers in pampas deer males. Therefore, the velvet skin is sensitive to both androgens and oestrogens. Furthermore, the greater content of oestrogen receptors in the velvet of adult males suggests that adults are more sensitive to this hormone than yearlings, and thus, oestrogens have greater importance in velvet activity regulation in adult males.</abstract><cop>Berlin</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/ahe.12738</doi><tpages>0</tpages><orcidid>https://orcid.org/0000-0003-4685-2105</orcidid></addata></record>
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subjects Adults
Androgens
Antlers
cervid
endocrine regulation
Epidermis
Epithelium
Immunohistochemistry
Males
Ozotoceros bezoarticus
Sebaceous gland
sex steroids
Skin
stags
steroid activity
Stroma
title Androgen and oestrogen receptors in the growing antlers velvet of adult and yearling pampas deer (Ozotoceros bezoarticus) males
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