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.

[Q]: Question: Is serum Reg-Ialpha suitable marker of metabolic syndrome?
Answer: Our study, for the first time, indicates that serum Reg-1alpha is not useful for the diagnosis of metabolic syndrome (Tab. 3, Ref. 7).
[A]: no

[Q]: Question: Does in vivo gene transfer of endothelial nitric oxide synthase to carotid arteries from hypercholesterolemic rabbits enhance endothelium-dependent relaxations?
Answer: Adenovirus-mediated gene transfer of eNOS to carotid arteries of cholesterol-fed animals improves endothelium-dependent relaxation when an optimal viral titer is administered.
[A]: yes

[Q]: Question: Is heterotopic bone formation derived from multipotent stromal cells inhibited in aged mice?
Answer: Overall, our results suggest that impaired bone formation with age is mainly cell-autonomous and provide a rationale for the use of MSC-based therapies for the treatment of bone diseases in the elderly.
[A]:
no