These observations indicate a deterministic shift of healthy oral microbiome during environmental stress conditions, like tobacco consumption, to a more dispersed microbial community composition in tobacco consuming individuals that is similar to the microbiome associated with OSCC buccal site ( Figure 7 )
( 4 ) For many men, that gradual dip adds up, and may lead to fatigue, irritability, reduced sex drive, or unwanted weight gain
Chewing tobacco has around 12.5 milligrams of nicotine per gram, while the tomato has only a tiny trace of about 7 nanograms of nicotine per gram
Interestingly, a study investigating sub-chronic exposure to carbon nanotube (CNT) particles, cigarette smoke extract (CSE), and their combination on lung microbiota found that CSE altered lung microbiota, shifting from Proteobacteria to Bacteroidetes, while co-exposure with CNT resulted in mixed microbial effects, including increased Bacteroidetes and Tenericutes
