Calcium Ion Uptake and Exchange in Otoconia

2015 ◽  
pp. 26-33 ◽  
Author(s):  
M. D. Ross
Keyword(s):  
Calcium Ion ◽  
Ion Uptake

Accelerated calcium ion uptake in murine thymocytes induced by concanavalin A

1977 ◽  
Vol 93 (1) ◽  
pp. 153-160 ◽  
Author(s):  
Keiko Ozato ◽  
Leaf Huang ◽  
James D. Ebert
Keyword(s):  
Concanavalin A ◽  
Calcium Ion ◽  
Ion Uptake

scholarly journals Effect of calcium ion uptake onCandida albicansmorphology

1991 ◽  
Vol 77 (2-3) ◽  
pp. 187-194 ◽  
Author(s):  
Ann R. Holmes ◽  
Richard D. Cannon ◽  
Maxwell G. Shepherd
Keyword(s):  
Calcium Ion ◽  
Ion Uptake

POTENTIATION BY URETHANE AND INHIBITION BY PENTOBARBITONE OF OXYTOCIN RELEASE IN VITRO

1975 ◽  
Vol 67 (3) ◽  
pp. 453-458 ◽  
Author(s):  
R. E. J. DYBALL
Keyword(s):  
Calcium Ion ◽  
Chloride Concentration ◽  
Ion Uptake ◽  
Hormone Release ◽  
Partial Explanation ◽  
Obvious Effect ◽  
Oxytocin Release ◽  
Neurotransmitter Substances ◽  
Stimulation Of

SUMMARY Isolated rat neural lobes were incubated in vitro in Locke's solution containing anaesthetic quantities of urethane, pentobarbitone or tribromoethanol. The oxytocin content of the incubation medium was estimated before, during and after stimulation of the tissue by raising the potassium chloride concentration from 5·6 to 56 mmol/l. Urethane (25 mmol/l) significantly potentiated oxytocin release (P < 0·01) whereas tribromoethanol (0·5 mmol/l) had no obvious effect and pentobarbitone (0·4 mmol/l) significantly (P < 0·01) inhibited its release. Reduction of the sodium chloride concentration in the medium potentiated the release of oxytocin in each case but did not alter its pattern. Urethane which increased secretion of oxytocin also increased calcium ion uptake by the neural lobes and pentobarbitone which decreased oxytocin release decreased calcium ion uptake. The results may explain why the blood concentration of the neurohypophysial hormones tends to be higher in rats anaesthetized with urethane than with tribromoethanol. Inhibition of hormone release by pentobarbitone suggests that this anaesthetic is unsuitable for use in studies of neurohypophysial hormone release. A partial explanation of the anaesthetic properties of urethane and pentobarbitone may also have been found if the release of neurotransmitter substances is influenced in a similar manner.

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