This study will examine the level of toxicity of e-cigarette use compared to smokers and nonsmokers including inflammation markers, toxicant and carcinogen exposure. Additionally, the study will look at the effect of varying voltage levels for e-cigarette users.
In this observational study, e-cigarette users, smokers, and non-users of e-cigarette or tobacco products (up to 134 per group) will be recruited from the Minneapolis-St. Paul area. This research will be conducted at the Tobacco Research Programs at the University of Minnesota. Subjects are screened for eligibility over the phone. If eligible after the phone screen, participants will be invited to attend orientation screening visit in the clinic where consent will be obtained and subjects will complete forms about their tobacco and e-cigarette use and medical history. Subjects who eligible will be asked to return for six visits over the course of six months. At these appointments, subjects will provide biological specimen samples (buccal cells, urine and blood). Saliva will be collected before and after a smoking or vaping session. Non-users will only have 1 saliva collection. Subjects will be asked for information pertaining to and e-cigarette and tobacco use and overall health.
Study Type
OBSERVATIONAL
Enrollment
217
University of Minnesota
Minneapolis, Minnesota, United States
DNA Adducts
Formation of Formaldehyde DNA Adducts in oral cells before and after smoking or vaping
Time frame: 6 months
Urinary 8-iso-PGF-2α
Stability of Urinary 8-iso-PGF-2α (biomarkers of oxidative damage) over a 6-month sample period
Time frame: 6 months
Urinary PGEM
Stability of Urinary PGEM (biomarker of inflammation) over a 6-month sample period
Time frame: 6 months
C-reactive protein
Stability of C-reactive protein in serum (biomarker of inflammation) over a 6-month sample period
Time frame: 6 months
TNE
Total Nicotine Equivalents (nicotine exposure) over a 6-month sample period
Time frame: 6 months
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