Assertion: adenosine's effect | /r/HasProperty | bi-modal
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Source sentences:
text: Adenosine has been reported to have a bi-modal effect: at low concentrations adenosine acts via specific extracellular adenosine receptors to alleviate pain by acting as an anti-inflammatory agent, however, at relatively higher concentrations, different adenosine receptors are activated and induce pain by becoming cytotoxic.