In line with the expectation, the virulence genes including hla (alpha hemolysin), hlb (beta hemolysin), pvl (leucocidin), nuc (thermostable nuclease), ssp (serine protease), spa (protein A) and the genes responsible for pigmentation, including sigB, rsbU, citZ , and crtN 19 , showed decreased transcriptional levels in the nicotine treatment group at 12 h or 24 h
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But the proposed measures face plenty of challenges, with some countries showing limited concern over the issue, while others, including the United States, have so far refused to ratify the FCTC altogether
Have nic salts changed the game
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