Abstract
The present study concerns the effect of glucocorticoids and triiodothyronine (T3) on rat salivary (Na++K+)-adenosine triphosphatase (NaK-ATPase). The results indicate that corticosterone increases submandibular gland NaK-ATPase activity with a single dose of hormone and with two daily doses on three successive days. Multiple injections of dexamethasone also increases submandibular and sublingual gland NaK-ATPase activity. The effect of glucocorticoids on salivary NaK-ATPase is selective since Mg-ATPase shows no significant differences under different steroidal states. We subsequently investigate the possibility of interaction between the effects of corticosterone and triiodothyronine on submandibular gland NaK-ATPase activity. Our studies indicate that each of these hormones increases NaK-ATPase activity in the absence of the other.
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This study was supported by NIH grant (AM28590) and USUHS Grant CO7623
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Bartolomei, M.S., Klein, L.E., Hsiao, P. et al. Effect of corticosterone and triiodothyronine on (Na++K+)-adenosine triphosphatase activity in rat submandibular gland. Pflugers Arch. 399, 255–258 (1983). https://doi.org/10.1007/BF00652748
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DOI: https://doi.org/10.1007/BF00652748