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NCT07348679
The overall purpose of this study is to determine the effects of using charcoal-filtered cigarettes on product perceptions, smoking behaviors, and biomarkers of exposure to tobacco-related toxicants. The main questions it aims to answer are: Do perceptions of cigarettes differ by their filter? Do people smoke charcoal-filtered cigarettes differently than cigarettes with conventional filters, and does this change their exposure to cigarette harms? Study participants will complete a 5-week laboratory-based, open-label, parallel-design randomized trial. After a baseline period of smoking their preferred brand, participants will smoke charcoal-filtered or non-charcoal-filtered cigarettes for 4 weeks while completing weekly sessions to assess primary outcomes. During weekly sessions, they will smoke two cigarettes in our laboratory, provide urine and carbon monoxide samples, and complete questionnaires.
NCT07339670
The aim of this study is to evaluate how smoking affects the healing process of the gums after treatment. The researchers will measure the levels of two specific proteins (PLAP-1 and Sclerostin) in the gum fluid of patients with stage II periodontitis. These measurements will be compared between smokers and non-smokers before and after receiving non-surgical periodontal therapy (cleaning and scaling) to see if smoking changes the body's response to treatment.
NCT07257783
Background: Smoking is one of the most significant risk factors for respiratory diseases, affecting both lung function and overall respiratory health. The harmful chemicals in tobacco smoke, contribute to airway inflammation, oxidative stress, and structural lung damage. Purpose: The purpose of this study was to investigate effect of Buteyko breathing exercise combined with postural stability exercises on maximal oxygen consumption, pulmonary functions, oxygen saturation, functional capacity, and perceived exertion in young adult smokers. Subjects and procedures: Forty male smokers were recruit-ed from Nahda university. Their age ranged between 18-30 years. They were randomly assigned into 2 groups equal in number. Study Group: They participated in 6 weeks training with Buteyko breathing exercise combined with postural stability exercises (3 sessions per week) Control group: They weren't exposed to any intervention. Both groups were assessed by using pulse oximeter to measure oxy-gen saturation, Spirostilk to measure pulmonary functions, Borg scale to measure perceived exertion and six-minute walk test to measure functional capacity and maximal oxygen consumption.