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Possible Interaction: Epinephrine and Serotonin



Research Papers that Mention the Interaction

In a population of healthy subjects, co-stimulation with submaximal concentrations of epinephrine and serotonin identifies a subset of individuals with a hyperreactive platelet aggregation profile that is associated with changes in platelet serotonin function.
Subjects with heightened (>60%) platelet aggregation to both epinephrine alone and epinephrine plus serotonin exhibited increased platelet serotonin uptake, and transporter number and affinity.
Thrombosis and haemostasis  •  2013  |  View Paper
Consistent with these observations, the combination of serotonin (a Galpha(q) pathway stimulator) and epinephrine (a Galpha(z) pathway stimulator) also caused alpha granule release.
Journal of thrombosis and haemostasis : JTH  •  2004  |  View Paper
However, in 2 cases, simultaneous application of 5-HT and epinephrine produced both first- and second-phase platelet aggregation.
These demonstrated first-phase aggregation in 40% of cases when both 5-HT and epinephrine were applied simultaneously, while in the majority of the newborns no reaction was encountered when each of these substances was applied separately.
European Journal of Pediatrics  •  2004  |  View Paper
Here we studied the mechanism of synergistic interaction of 5-hydroxytryptamine (5-HT) and epinephrine mediated platelet aggregation.
The … 5-HT (1-…) and epinephrine (0.5-2 microM) was inhibited by alpha2-adrenoceptor blocker (yohimbine; IC50= 0.4 microM), calcium channel blockers (verapamil and diltiazem with … 10 and 48 mM, respectively), PLC inhibitor (U73122; IC50=6 microM) and nitric oxide (NO) donor, SNAP (IC50=1.6 microM)).
We show that 5-HT had no or little effect on aggregation but it did potentiate the aggregation response of epinephrine.
Experimental & Molecular Medicine  •  1999  |  View Paper
Significant negative linear correlations between serotonin and FSH (r = -0.45; p < 0.01) serotonin and daily excretion of adrenalin (r = -0.43; p < 0.01) or noradrenalin (r = -0.58; p < 0.001) were found in the exposed group.(ABSTRACT TRUNCATED AT 250 WORDS)
Medycyna pracy  •  1994  |  View Paper
Epinephrine and 5-HT produced convergent, non-additive inhibition of both basal and forskolin-stimulated cyclase.
Biochemical pharmacology  •  1994  |  View Paper
Simultaneous addition of 5-hydroxytryptamine (5-HT) and epinephrine synergistically elevated cytosolic free Ca2+ concentration ([Ca2+]cyt) and activated phospholipase C. These phenomena occurred in an agonist concentration-dependent manner and reflected an increase in maximal response rather than a, shift in affinity for either of the stimuli.
European journal of pharmacology  •  1993  |  View Paper
An additive PI turnover response was generated by the combination of 5-HT and EPI.
Life sciences  •  1992  |  View Paper
Epinephrine E ) and norepinephrine (NE) alone did not increase free intracellular Ca2+ ([Ca2+]i) in human platelets loaded with Quin-2 or Fura-2; however, they did potentiate the effects of vasopressin (VP), serotonin ( S ) and platelet activating factor (PAF).
Biokhimiia  •  1989  |  View Paper
Human platelet reactions are enhanced when a combination of serotonin and epinephrine is used as a stimulus.
Synergism between serotonin and epinephrine on the platelet occurs at low concentration of agonists and may contribute to the formation of an arterial thrombus in vivo.
Journal of cardiovascular pharmacology  •  1988  |  View Paper
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