A Comparison of Flavorless Electronic Cigarette-Generated Aerosol and Conventional Cigarette Smoke on the Planktonic Growth of Common Oral Commensal Streptococci
| Autor: | Dominic L. Palazzolo, John M. Nelson, Giancarlo A. Cuadra |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Nicotine aerosol Health Toxicology and Mutagenesis oral commensal bacteria Bacterial growth Article smoking Microbiology law.invention 03 medical and health sciences 0302 clinical medicine law Smoke medicine Tobacco Smoking Cigarette smoke Humans 030304 developmental biology Periodontitis 0303 health sciences Chemistry Planktonic bacteria Vaping Public Health Environmental and Occupational Health Streptococcus 030206 dentistry Middle Aged medicine.disease Plankton Aerosol E-liquid streptococci ECIG Female Electronic cigarette medicine.drug |
| Zdroj: | International Journal of Environmental Research and Public Health Volume 16 Issue 24 |
| ISSN: | 1660-4601 1661-7827 |
| Popis: | Background: Smoking is the number one predictor for the development of periodontal disease. Consequently, electronic cigarette (ECIG) use has prompted investigations into the health-related risks induced by ECIG-generated aerosol on oral commensal bacteria as compared to cigarette smoke. Since E-liquid contains fewer constituents than smoke, we hypothesize that growth media containing E-liquid or aerosol has less impact on oral commensal streptococci than cigarette smoke. Methods: Eight-hour growth curves were generated for three strains of streptococci following exposure of growth media to nicotine alone (0.05, 0.1, 0.2 mg/mL), E-liquid ± nicotine (2.3, 4.7, 7.0 µ L/mL), ECIG-generated aerosol ± nicotine (25, 50, 75 puffs), or cigarette smoke (2, 5, 10, 25, 50, 75 puffs). Nicotine and E-liquid were added to the media at concentrations equivalent to vaporized amounts of 25, 50, or 75 puffs. Absorbance readings were taken at 0, 2, 4, 6, and 8 h of bacterial growth. Results: Both E-liquid and aerosol (± nicotine) had little to no effect on eight-hour streptococcal growth. In contrast, five puffs of smoke inhibited streptococcal growth. Conclusions: Smoke-treated growth media, but not E-liquid or ECIG-generated aerosol, inhibits the growth of oral commensal streptococci. A possible implication is that aerosol may induce less periodontitis than smoke. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|