{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T04:42:00Z","timestamp":1771994520573,"version":"3.50.1"},"reference-count":40,"publisher":"FapUNIFESP (SciELO)","issue":"3","license":[{"start":{"date-parts":[[2021,9,1]],"date-time":"2021-09-01T00:00:00Z","timestamp":1630454400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2021,9,1]],"date-time":"2021-09-01T00:00:00Z","timestamp":1630454400000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2021,9,1]],"date-time":"2021-09-01T00:00:00Z","timestamp":1630454400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Braz. J. Biol."],"abstract":"<jats:p>Abstract Understanding the relation between the environmental stress factors and the hypothalamus-pituitary-thyroid (HPT) axis efficiency can reduce the susceptibility to thyroid diseases. In our study, thyroid dysfunction was induced in female rats by administration of 40 mg Na F\/kg.bd.wt\/day for a month. Co-administration of the water extract of Arca noae (300 mg\/kg. bw) was tested as a treatment for Na F induced thyroid dysfunction. A group of rats injected Arca noae extract only (300 mg\/kg.bd.wt) was performed to observe the impact of the extract on the (HPT) axis in addition to the normal control group. Results showed that there was a significant decrease in serum triglycerides, total protein and albumin levels in the fluoride supplemented group in addition to abnormal levels of TSH, (T4) and (T3) compared to the control group. In the treated group there was an improvement in the proteins level and lipid profile but pseudo-corrected serum (T4) and (T3) levels were observed in addition to a continuous increase in TSH level. Histological findings confirmed the harmful effect of fluoride on both the non treated and the treated groups. Consequently, fluoride supplementation must be considered as a harmful stress that may affect permanently the HPT axis.<\/jats:p>","DOI":"10.1590\/1519-6984.226829","type":"journal-article","created":{"date-parts":[[2020,9,11]],"date-time":"2020-09-11T17:14:22Z","timestamp":1599844462000},"page":"592-600","source":"Crossref","is-referenced-by-count":5,"title":["A trial for improving thyroid gland dysfunction in rats by using a marine organism extract"],"prefix":"10.1590","volume":"81","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8302-577X","authenticated-orcid":false,"given":"D. S.","family":"Foda","sequence":"first","affiliation":[{"name":"National Research Centre,  Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S. G.","family":"Shams","sequence":"additional","affiliation":[{"name":"National Research Centre,  Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","published-online":{"date-parts":[[2021,9]]},"reference":[{"issue":"10","key":"ref1","first-page":"107","article-title":"Effect of sodium fluoride on the thyroid follicular cells and the amelioration by calcium supplementation in albino rats: A light and an electron microscopic study","volume":"9","author":"ABDUL RAHMAN M.M.","year":"2013","journal-title":"The Journal of American Science"},{"key":"ref2","series-title":"Theory and practice of histological techniques.","author":"BANCHROFT J.D.","year":"1996"},{"issue":"2","key":"ref3","doi-asserted-by":"crossref","first-page":"139","DOI":"10.1210\/er.2009-0007","article-title":"Molecular aspects of thyroid hormone actions","volume":"31","author":"CHENG S.Y.","year":"2010","journal-title":"Endocrine 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