{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,20]],"date-time":"2025-11-20T06:55:20Z","timestamp":1763621720305,"version":"3.41.2"},"reference-count":47,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2024,6,7]],"date-time":"2024-06-07T00:00:00Z","timestamp":1717718400000},"content-version":"vor","delay-in-days":6,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100020648","name":"Universidade Estadual de Santa Cruz","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100020648","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Reprod Domestic Animals"],"published-print":{"date-parts":[[2024,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This study evaluated whether the treatment of pseudopregnancy in bitches with vitamin B6 modulates uterine expression of receptors for progesterone (PR), oestrogen (ER\u03b1), androgen (AR), thyroid hormone (TR\u03b1) and the kisspeptin\/Kiss1r system. Eighteen pseudopregnant bitches were treated for 20\u2009days in groups receiving placebo (<jats:italic>n<\/jats:italic>\u2009=\u20096); cabergoline (5\u2009\u03bcg\/kg\/day; <jats:italic>n<\/jats:italic>\u2009=\u20096); or vitamin B6 (50\u2009mg\/kg\/day; <jats:italic>n<\/jats:italic>\u2009=\u20096). Blood was collected on the 1st day of drug administration and 120\u2009h later to measure serum prolactin (PRL). After treatment, they were ovariohysterectomized and uterine fragments were collected for histomorphometry and immunohistochemical evaluation of PR, ER\u03b1, AR, TR\u03b1, Kiss1 and Kiss1r. After 120\u2009h of cabergoline or vitamin B6 treatment, PRL levels were reduced in the bitches, confirming the antiprolactinemic effect of these drugs. Furthermore, regardless of treatment, the animals exhibited uterine histomorphometry consistent with dioestrus. The PR showed strong immunostaining in all regions and an increase in scores was observed for this receptor in animals treated with vitamin B6 in deep glands. In contrast, ER\u03b1 and Kiss1R receptors showed weak to no immunostaining in all uterine regions and no changes between groups. Regarding AR, most animals treated with vitamin B6 showed increased trends in the deep gland and myometrium marking scores. In contrast, in both vitamin B6 and cabergoline treatments, a reduction in TR\u03b1 marking scores was observed compared to the control group. In addition, on the endometrial surface, a reduction was observed in the marked area of Kiss1 after administration of cabergoline when compared to the pseudopregnant control group. These findings shed valuable insight into the use of vitamin B6 as a drug with actions similar to cabergoline in reducing PRL and uterine modulation in bitches.<\/jats:p>","DOI":"10.1111\/rda.14630","type":"journal-article","created":{"date-parts":[[2024,6,7]],"date-time":"2024-06-07T11:27:06Z","timestamp":1717759626000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Modulatory effect of vitamin <scp>B6<\/scp> on sex hormone receptors, thyroid, and kisspeptin\/kiss1r system in the uterus of pseudopregnant bitches"],"prefix":"10.1111","volume":"59","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7679-1353","authenticated-orcid":false,"given":"Luciano Cardoso","family":"Santos","sequence":"first","affiliation":[{"name":"Department of Biological Sciences, Electron Microscopy Center State University of Santa Cruz  Ilheus Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Larissa 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