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| Fernandez, Ignacio; Pimentel, Marta S.; Ortiz-delgado, Juan B.; Hontoria, Francisco; Sarasquete, Carmen; Estevez, Alicia; Zambonino, Jose-luis; Gisbert, Enric. |
| The effects of different levels of vitamin A (VA) in Senegalese sole larval performance and development were evaluated by means of a dietary dose-response experiment using enriched Artemia metanauplii as a carrier of this micronutrient. Larvae were fed from 6 to 27 days post hatch (dph) with enriched Artemia containing graded levels of total VA (1.3, 2.1, 4.5 and 12.9 mu g VA mg(-1) DW). The content of VA in live prey directly affected its accumulation in larvae and early juveniles. Retinyl palmitate accumulated during larval ontogeny, whereas retinol showed the opposite trend, decreasing from hatching until 41 dph and then remaining constant until the end of the study. Inmetamorphic larvae (10 and 15 dph), VA did not affect the number of thyroid follicles... |
| Tipo: Text |
Palavras-chave: Deformities; Thyroid hormones; Skeleton; Vitamin A; Larval quality; Solea senegalensis; Senegalese sole. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-7385.pdf |
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| LUSTRINO,DANILO; SILVA,ALBA C.M.; ARAUJO,IRACEMA G.; TUNHOLI,VICTOR M.; TUNHOLI-ALVES,VINÍCIUS M.; CASTRO,ROSANE N.; CARVALHO,DENISE P.; PINHEIRO,JAIRO; MARASSI,MICHELLE P.. |
| ABSTRACT 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 T3 and T4 before and after long starvation with or without hemolymph deproteinization. Sodium/iodide symporter activity in vivo was analyzed through 125I administration with and without KClO4 pretreatment. Only T4 was detected, and its concentration decreased due to starvation or deproteinization. However, high-performance liquid chromatography analysis also showed the presence of T2 and T3 apart from T4, but rT3 was not detected in the A. fulica hemolymph. The sodium/iodide symporter activity was greater in cerebral ganglia than digestive gland, but KClO4... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Achatina fulica; Sodium/iodine symport; Thyroid hormones; Thyroglobulin. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502181 |
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| This study was designed to evaluate the thyroid and pituitary hormone levels in post-weaning rats whose dams were fed a low-protein diet during suckling (21 days). The dams and pups were divided into 2 groups: a control group fed a diet containing 22% protein that supplies the necessary amount of protein for the rat and is the usual content of protein in most commercial rat chow, and a diet group fed a low-protein (8%) diet in which the protein was substituted by an isocaloric amount of starch. After weaning all dams and pups received the 22% protein diet. Two hours before sacrifice of pups aged 21, 30 and 60 days, a tracer dose (0.6 µCi) of 125I was injected (ip) into each animal. Blood and thyroid glands of pups were collected for the determination of... |
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Palavras-chave: Thyroid; Protein malnutrition; Lactation; Thyrotropin; Thyroid hormones. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000100020 |
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| Biz,C.; Oliveira,C.; Mattos,A.B.M.; Oliveira,J.; Ribeiro,E.B.; Oller do Nascimento,C.M.; Oyama,L.M.. |
| Metabolic syndrome is associated with an increased risk of developing cardiovascular diseases and Plasminogen activator inhibitor 1 (PAI-1) overexpression may play a significant role in this process. A positive correlation between adipose tissue gene expression of PAI-1 and its serum concentration has been reported. Furthermore, high serum levels of thyroid hormones (T3 and T4) and PAI-1 have been observed in obese children. The present study evaluates the impact of thyroid hormone treatment on white adipose tissue PAI-1 gene expression and its serum concentration. Male Wistar rats (60 days old) were treated for three weeks with T4 (50 µg/day, Hyper) or with saline (control). Additionally, 3T3-L1 adipocytes were treated for 24 h with T4 (100 nM) or T3 (100... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Thyroid hormones; Plasminogen activator inhibitor 1; White adipose tissue; 3T3-L1. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009001200007 |
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