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.
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Question: Question: Does triptolide inhibit TGF-β1-induced cell proliferation in rat airway smooth muscle cells by suppressing Smad signaling?
Answer: Triptolide may function as an inhibitor of asthma airway remodeling by suppressing ASMCs proliferation via negative regulation of Smad signaling pathway.

Answer: yes


Question: Question: Is prooxidant-anti-oxidant balance associated with extent of coronary artery disease?
Answer: In conclusion, we found higher levels of oxidative stress in CAD+ patients compared to healthy subjects. The oxidation level was not related to measures of the extent of CAD such as number of stenosed vessels.

Answer: no


Question: Question: Is osteoprotegerin associated with subclinical left ventricular systolic dysfunction in diabetic hypertensive patients : a speckle tracking study?
Answer: Plasma OPG values could predict subclinical LV systolic dysfunction in diabetic hypertensive patients.

Answer:
yes