Evidence of the Presence of Thyroid Hormones in Achatina fulica Snails
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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2017
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| author | DANILO LUSTRINO |
| author_facet | DANILO LUSTRINO |
| contents | Evidence of the Presence of Thyroid Hormones in Achatina fulica Snails DANILO LUSTRINO ALBA C.M. SILVA IRACEMA G. ARAUJO VICTOR M. TUNHOLI VINÍCIUS M. TUNHOLI-ALVES ROSANE N. CASTRO DENISE P. CARVALHO JAIRO PINHEIRO MICHELLE P. MARASSI Multidisciplinaria (Ciencias Naturales y Exactas) Sodium Thyroglobulin iodine symport Achatina fulica Thyroid hormones The objective of this study was to identify thyroid hormones and to examine their putative site of synthesis in Achatina fulica snails. For this purpose, radioimmunoassays were performed for T 3 and T 4 before and after long starvation with or without hemolymph deproteinization. Sodium/iodide symporter activity in vivo was analyzed through 125 I administration with and without KClO 4 pretreatment. Only T 4 was detected, and its concentration decreased due to starvation or deproteinization. However, high-performance liquid chromatography analysis also showed the presence of T 2 and T 3 apart from T 4 , but rT 3 was not detected in the A. fulica hemolymph. The sodium/iodide symporter activity was greater in cerebral ganglia than digestive gland, but KClO 4 treatment did not inhibit iodide uptake in any of the tissues analyzed. Altogether, our data confirm for the first time the presence of thyroid hormones in A. fulica snails and suggest their participation in the metabolism control in this species, although the putative site of hormone biosynthesis remains to be elucidated. 2017 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32753602020 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.3 Vol.89 |
| format | Artículo científico |
| id | redalyc_32753602020 |
| institution | Redalyc |
| language | en |
| publishDate | 2017 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | Evidence of the Presence of Thyroid Hormones in Achatina fulica Snails DANILO LUSTRINO Multidisciplinaria (Ciencias Naturales y Exactas) Sodium Thyroglobulin iodine symport Achatina fulica Thyroid hormones Evidence of the Presence of Thyroid Hormones in Achatina fulica Snails DANILO LUSTRINO ALBA C.M. SILVA IRACEMA G. ARAUJO VICTOR M. TUNHOLI VINÍCIUS M. TUNHOLI-ALVES ROSANE N. CASTRO DENISE P. CARVALHO JAIRO PINHEIRO MICHELLE P. MARASSI Multidisciplinaria (Ciencias Naturales y Exactas) Sodium Thyroglobulin iodine symport Achatina fulica Thyroid hormones The objective of this study was to identify thyroid hormones and to examine their putative site of synthesis in Achatina fulica snails. For this purpose, radioimmunoassays were performed for T 3 and T 4 before and after long starvation with or without hemolymph deproteinization. Sodium/iodide symporter activity in vivo was analyzed through 125 I administration with and without KClO 4 pretreatment. Only T 4 was detected, and its concentration decreased due to starvation or deproteinization. However, high-performance liquid chromatography analysis also showed the presence of T 2 and T 3 apart from T 4 , but rT 3 was not detected in the A. fulica hemolymph. The sodium/iodide symporter activity was greater in cerebral ganglia than digestive gland, but KClO 4 treatment did not inhibit iodide uptake in any of the tissues analyzed. Altogether, our data confirm for the first time the presence of thyroid hormones in A. fulica snails and suggest their participation in the metabolism control in this species, although the putative site of hormone biosynthesis remains to be elucidated. 2017 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32753602020 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.3 Vol.89 |
| title | Evidence of the Presence of Thyroid Hormones in Achatina fulica Snails |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) Sodium Thyroglobulin iodine symport Achatina fulica Thyroid hormones |
| url | https://www.redalyc.org/articulo.oa?id=32753602020 |