دورية أكاديمية
Chronic Nicotine Exposure Alters Uninjured Tendon Vascularity and Viscoelasticity
| العنوان: | Chronic Nicotine Exposure Alters Uninjured Tendon Vascularity and Viscoelasticity |
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| المؤلفون: | Daniel Gittings MD, Corinne Riggin BS, James Boorman-Padgett MS, Stephanie Weiss BS, George Fryhofer MD, MTR, Daniel Farber MD, David Steinberg MD, Louis J. Soslowsky PhD |
| المصدر: | Foot & Ankle Orthopaedics, Vol 4 (2019) |
| بيانات النشر: | SAGE Publishing, 2019. |
| سنة النشر: | 2019 |
| المجموعة: | LCC:Orthopedic surgery |
| مصطلحات موضوعية: | Orthopedic surgery, RD701-811 |
| الوصف: | Background: Although nicotine and tobacco use are well established to have adverse health effects, the effects on tendons are less well understood. The purpose of this study was to investigate the effect of chronic nicotine exposure on Achilles tendon (AT) and supraspinatus tendon (SS) physiologic and mechanical properties in a rodent model. Methods: Sprague-Dawley rats (n = 20) were exposed to either 0.9% saline or 36 mg/mL nicotine through an implantable osmotic pump for 12 weeks. At 12 weeks, the AT was imaged in vivo with contrast-enhanced ultrasound (CE-US) to assess vascularity. Bilateral AT and SS were then harvested for ex vivo biomechanical analysis. Statistical analysis was performed using Student t test and Mann Whitney U test. Results: AT CE-US demonstrated a significantly increased wash-in rate in the nicotine group compared to the saline group, indicating an increase in tissue perfusion rate in the nicotine group. AT percent stress relaxation, a measure of tendon viscoelasticity, was significantly increased in the nicotine group compared to the saline group. Similarly, there was a trend toward increased SS percent stress relaxation in the nicotine group compared to the saline group. No differences in other mechanical properties were observed. Conclusion: AT perfusion rate increased and both AT and SS viscoelasticity were altered with chronic nicotine exposure at a clinically relevant dose that models the average smoker in the United States (14 cigarettes per day). Further studies are necessary to link these properties with tendon degeneration and injury. Clinical Relevance: Chronic nicotine exposure affects tendon health. Patients should be counseled as such. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2473-0114 24730114 |
| العلاقة: | https://doaj.org/toc/2473-0114Test |
| DOI: | 10.1177/2473011419842529 |
| الوصول الحر: | https://doaj.org/article/c63967534cf245d9a9c01f4c56a01028Test |
| رقم الانضمام: | edsdoj.63967534cf245d9a9c01f4c56a01028 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 24730114 |
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| DOI: | 10.1177/2473011419842529 |