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Chronic snus use in healthy males alters endothelial function and increases arterial stiffness
Division of Internal Medicine, Department of Clinical Sciences, Karolinska Institutet, Danderyd University Hospital, Stockholm, Sweden; Division of Pulmonology, Department of Medicine II, Medical University of Vienna, Vienna, Austria.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Section of Medicine.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Section of Medicine.ORCID iD: 0000-0002-2574-479X
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Section of Medicine.
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2022 (English)In: PLOS ONE, E-ISSN 1932-6203, Vol. 17, no 6, article id e0268746Article in journal (Refereed) Published
Abstract [en]

Background: Snus usage is commonly touted as a safer alternative to cigarette smoking. However, recent studies have demonstrated possible adverse cardiovascular effects in chronic snus users. The present study evaluates the effects of chronic snus use on vascular function by assessing central arterial stiffness and endothelial vasodilatory function in healthy chronic snus users as compared to matched non-users.

Methods and results: Fifty healthy males (24 snus users, 26 age-matched controls) with a mean age of 44 years were included in the study. Arterial stiffness was assessed employing both pulse wave velocity and pulse wave analysis. Endothelial vasodilatory function was measured by venous occlusion plethysmography, utilizing intra-arterial administration of acetylcholine, glyceryl trinitrate and bradykinin to further gauge endothelium-dependent and -independent vasodilatory function. Arterial stiffness was significantly higher in chronic snus users as compared to controls: pulse wave velocity [m/s]: 6.6±0.8 vs 7.1±0.9 resp. (p = 0.026), augmentation index corrected for heart rate [%]: 0.1±13.2 vs 7.3±7.8 resp. (p = 0.023). Endothelial independent vasodilation, i.e. the reaction to glyceryl trinitrate, was significantly lower in snus users as measured by venous occlusion plethysmography.

Conclusions: The results of this study show an increased arterial stiffness and an underlying endothelial dysfunction in daily snus users as compared to matched non-tobacco controls. These findings indicate that long-term use of snus may alter the function of the endothelium and therefore reinforces the assertion that chronic snus use is correlated to an increased risk of development of cardiovascular disease.

Place, publisher, year, edition, pages
Public Library of Science (PLoS) , 2022. Vol. 17, no 6, article id e0268746
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Cardiac and Cardiovascular Systems
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URN: urn:nbn:se:umu:diva-203175DOI: 10.1371/journal.pone.0268746ISI: 000832307900135PubMedID: 35657943Scopus ID: 2-s2.0-85131702456OAI: oai:DiVA.org:umu-203175DiVA, id: diva2:1727575
Funder
The Swedish Heart and Lung AssociationVästerbotten County CouncilSwedish Heart Lung FoundationKarolinska InstituteStockholm County CouncilUmeå UniversityMagnus Bergvall FoundationSwedish Society of MedicineAvailable from: 2023-01-16 Created: 2023-01-16 Last updated: 2024-04-08Bibliographically approved

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Kabele, MikaelNilsson, UlfPourazar, JamshidRankin, GregoryBosson, Jenny A.

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