{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T04:31:19Z","timestamp":1783917079523,"version":"3.55.0"},"reference-count":38,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2017,12,27]],"date-time":"2017-12-27T00:00:00Z","timestamp":1514332800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["The Laryngoscope"],"published-print":{"date-parts":[[2018,8]]},"abstract":"<jats:sec><jats:title>Objectives\/Hypothesis<\/jats:title><jats:p>To develop a clinically relevant model of oropharyngeal concurrent chemoradiation therapy (CCRT) in order to quantify the effects of CCRT on tongue function and structure. CCRT for advanced oropharyngeal cancer commonly leads to tongue base dysfunction and dysphagia. However, no preclinical models currently exist to study the pathophysiology of CCRT\u2010related morbidity, thereby inhibiting the development of targeted therapeutics.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>Animal model.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Twenty\u2010one male Sprague\u2010Dawley rats were randomized into three groups: 2 week (2W), 5 month (5M), and control (C). The 2W and 5M animals received cisplatin, 5\u2010fluorouracil, and five fractions of 7 Gy to the tongue base; the C animals received no intervention. In vivo tongue strength and displacement, as well as hyoglossus muscle collagen content, were assessed. Analyses were conducted 2 weeks or 5 months following completion of CCRT in the 2W and 5M groups, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Peak tetanic and twitch tongue forces were significantly reduced in both 2W and 5M animals compared to controls (tetanic: <jats:italic>P<\/jats:italic> = .0041, <jats:italic>P<\/jats:italic> = .0089, respectively; twitch: <jats:italic>P<\/jats:italic> = .0201, <jats:italic>P<\/jats:italic> = .0020, respectively). Twitch half\u2010decay time was prolonged in 2W animals compared to controls (<jats:italic>P<\/jats:italic> = .0247). Tongue displacement was significantly reduced across all testing parameters in 5M animals compared to both the C and 2W groups. No differences in collagen content were observed between experimental groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The current study is the first to describe a preclinical model of CCRT to the head and neck with an emphasis on clinical relevance. Tongue strength decreased at 2 weeks and 5 months post\u2010CCRT. Tongue displacement increased only at 5 months post\u2010CCRT. Fibrosis was not detected, implicating alternative causative factors for these findings.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p>NA <jats:italic>Laryngoscope<\/jats:italic>, 1783\u20131790, 2018<\/jats:p><\/jats:sec>","DOI":"10.1002\/lary.27033","type":"journal-article","created":{"date-parts":[[2017,12,27]],"date-time":"2017-12-27T10:23:26Z","timestamp":1514370206000},"page":"1783-1790","source":"Crossref","is-referenced-by-count":15,"title":["The effects of concurrent chemoradiation therapy to the base of tongue in a preclinical model"],"prefix":"10.1002","volume":"128","author":[{"given":"Peter A.","family":"Benedict","sequence":"first","affiliation":[{"name":"Department of Otolaryngology\u2013Head and Neck Surgery New York University Voice Center New York University School of Medicine, New York New 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