Updated December 17, 2013
Nicotine belongs to a family of compounds called alkaloids and occurs naturally in several varieties of plant, including tomatoes, aubergines and potatoes, but is found at its highest levels in the tobacco plant
Fifty-nine participants (HIV-/Smok- [ n = 16], HIV-/Smok+ [ n =14], HIV+/Smok- [ n = 18], and HIV+/Smok+ [ n = 11]) underwent baseline eligibility tests, positron emission tomography (PET) scanning to determine levels of a marker for neuroinflammation, and assessment of cognitive control with the reverse-translated 5-choice continuous performance test (5C-CPT), with smokers having smoked to satiety prior to testing
Red flag symptoms requiring immediate evaluation include fever above 101F, hearing loss, purulent ear drainage, or facial swellingthese suggest serious infection or complications