In this task, you are given a sentence. You are expected to recognize the name of any form of chemical substances. Although there might be several correct answers, you need to write one of them.
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Question: Oxysterol generation and liver X receptor-dependent reverse cholesterol transport: not all roads lead to Rome.

Answer: cholesterol


Question: Aspirin and sodium salicylate inhibit endothelin ETA receptors by an allosteric type of mechanism.

Answer: sodium salicylate


Question: Anti-apoptotic cardioprotective effects of SHP-1 gene silencing against ischemia-reperfusion injury: Use of deoxycholic acid-modified low molecular weight polyethyleneimine as a cardiac siRNA-carrier.

Answer:
polyethyleneimine