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Sulfate absorption in Aplysia californica gut: thyroid hormone stimulation

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Mucosal membranes of foregut epithelia of Aplysia californica contain a sodium/sulfate symporter. Mucosal or serosal application of triiodothyronine stimulated the absorptive activity of the sodium/sulfate symporter, whereas reverse triiodothyronine had no effect on it. It appears that thyroid hormone or its molluscan equivalent plays a role in the overall regulation of sulfate homeostasis by the A. californica gut.

Chez Aplysia californica, les membranes muqueuses des épithéliums du tube digestif antérieur contiennent un symporteur sodium/sulfate. L'application de triiodothyronine sur la muqueuse ou la couche séreuse stimule l'activité absorbante du symporteur, alors que la triiodothyronine inverse reste sans effet sur le symporteur. Il semble que l'hormone thyroïdienne, ou son équivalent chez les mollusques, ait un rôle à jouer dans la régulation globale de l'homéostasie des sulfates dans le tube digestif d'A. californica.[Traduit par la Rédaction]

Document Type: Research Article

Publication date: May 1, 2002

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  • Published since 1929, this monthly journal reports on primary research contributed by respected international scientists in the broad field of zoology, including behaviour, biochemistry and physiology, developmental biology, ecology, genetics, morphology and ultrastructure, parasitology and pathology, and systematics and evolution. It also invites experts to submit review articles on topics of current interest.
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