Task: Answer Verification
Input (English): Question: Do osteoblasts play key roles in the mechanisms of action of strontium ranelate?
Answer: Our results demonstrate that osteoblasts play a key role in the mechanism of action of the anti-fracture agent, strontium ranelate by mediating both its anabolic and anti-resorptive actions, at least in part, via activation of CaSR.
Output (English): yes