Possible Interaction: Amphetamine and Calcium Supplement

“In all pretreated groups the calcium fluorescence was diminished by nifedipine 10(-7)M. Therefore, the pretreatment with amphetamine , fluoxetine or sibutramine seems to affect the calcium contractility and homeostasis in young rat vas deferens.”

“After adding calcium , a dose-dependant increase in cell speed was found.”

“Monitoring the evolution of cell-surface contact area with time reveals that calcium stimulates cell speed by increasing the amplitude of both protrusion and retraction events at the cell edge, but not the frequency.”

“Thus, calcium release from internal stores and calcium entry through the plasma membrane modulate cell speed in response to shear stress.”

“Release stimulated by 5×10−5 M amphetamine was significantly reduced by removing calcium from the perfusing fluid; the unstimulated release rate was not significantly affected.”

“Nomifensine and (−)amphetamine caused relatively (but not absolutely) larger increases in the overflow of DA at 1.2 mmol/1 calcium.”

“ Amphetamine was effective in antagonizing the avoidance decrements produced by all the CA antagonists.”

“It was found that calcium enhanced the effect of amphetamine on PKC activity, even in rats pretreated with EEDQ.”

“Thus, calcium had a differential effect on the PKC activity induced by a transported substrate ( amphetamine ) vs. nontransported inhibitors (DA uptake blockers).”

“Acute administration of amphetamine increased their locomotor activity by ca.”

“Chronic intermittent treatment with amphetamine significantly decreased, by ca.”

“A medium free of calcium reduced the increase of extracellular GABA produced by AMPH by 37%.”

“ Phenamine (10(-12)-10(-5) M/l) increased by 20-60 per cent the input (sodium and calcium ) currents (Iin), the output slow potassium (Ikm) and fast potassium (Ikb) ones, and decreased the currents in higher concentrations.”