Q: Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
Question: Does ketamine inhibit proliferation of neural stem cell from neonatal rat hippocampus in vitro?
Answer: Ketamine inhibited proliferation of NSCs from neonatal rat hippocampus in vitro. Suppressing Ca(2+)-PKC-ERK1/2 signaling pathway may be involved in this inhibitory effect of ketamine on NSCs proliferation.
A:
yes