{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,4]],"date-time":"2026-02-04T16:50:57Z","timestamp":1770223857284,"version":"3.49.0"},"reference-count":62,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T00:00:00Z","timestamp":1769990400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>Background: Approximately two-thirds of individuals with spinal cord injury (SCI) become overweight or obese. Weight loss surgery, including vertical sleeve gastrectomy (VSG), is one of the most effective long-term treatments for obesity and type 2 diabetes. Introduction: The main objective of this study was to test in our diet induced obesity rat model whether subjects respond to VSG in the same way as subjects with or without SCI. Methods: To address this question, male Wistar rats underwent either T3 contusion injuries or sham spinal surgeries (Sham). Following recovery, all rats were fed a high-energy, high-fat diet (HFD) for six weeks before undergoing VSG. Taste responsivity and preferences were assessed at multiple time points. Results: Prior to HFD exposure, SCI rats exhibited significantly reduced lick responses for sucrose at higher concentrations and increased licking for low concentrations of sodium, although 2BC sucrose preference was unchanged. HFD feeding in SCI rats enhanced salt and sucrose licking overall. Importantly, VSG reduced sucrose licking, with SCI rats showing greater sensitivity to this effect. cFos immunohistochemistry further revealed enhanced neuronal activation to sucrose ingestion in the dorsal vagal complex, including the rostral subnucleus of the nucleus of the solitary tract. Discussion and Conclusions: Together, these findings support the hypothesis that SCI alters taste functions, thereby increasing vulnerability to diet-induced obesity and that VSG may restore sweet taste responsivity even more effectively in SCI-associated obesity than in non-SCI obesity. Future studies are needed to clarify the neural and hormonal mechanisms mediating these effects and to determine their translational relevance to human SCI populations.<\/jats:p>","DOI":"10.3390\/nu18030503","type":"journal-article","created":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T15:38:12Z","timestamp":1770046692000},"page":"503","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Taste Changes in a Rat Model of Spinal Cord Injury: Impact of High-Fat Diet and Weight Loss Surgery"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4664-8753","authenticated-orcid":false,"given":"Jonathan","family":"Snyder","sequence":"first","affiliation":[{"name":"Department of Neuroscience and Experimental Therapeutics, College of Medicine, Penn State University, Hershey, PA 17033, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1206-7646","authenticated-orcid":false,"given":"Tiffany","family":"Tang","sequence":"additional","affiliation":[{"name":"Department of Neuroscience and Experimental Therapeutics, College of Medicine, Penn State University, Hershey, PA 17033, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5176-8376","authenticated-orcid":false,"given":"Gregory M.","family":"Holmes","sequence":"additional","affiliation":[{"name":"Department of Neuroscience and Experimental Therapeutics, College of Medicine, Penn State University, Hershey, PA 17033, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7297-7134","authenticated-orcid":false,"given":"Andras","family":"Hajnal","sequence":"additional","affiliation":[{"name":"Department of Neuroscience and Experimental Therapeutics, College of Medicine, Penn State University, Hershey, PA 17033, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,2,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"National Spinal Cord Injury Statistical Center (2016). 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