{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T10:40:49Z","timestamp":1791024049276,"version":"4.1.0"},"reference-count":0,"publisher":"S. Karger AG","issue":"1","license":[{"start":{"date-parts":[[1999,1,1]],"date-time":"1999-01-01T00:00:00Z","timestamp":915148800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[1999,1,1]],"date-time":"1999-01-01T00:00:00Z","timestamp":915148800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cells Tissues Organs"],"published-print":{"date-parts":[[1999]]},"abstract":"<jats:p>Three-month-old male rats were subjected 3 times weekly for 1\u00a0h to eccentric exercise of one triceps surae muscle (30 stimulations\/min) under general anesthesia in order to induce Achilles tendon disorder corresponding to paratenonitis and tendinosis in man. Net muscle work during the sessions ranged between 0.67 and 4.37\u00a0mJ (mean 1.72, SD 0.77). After 9 and 13 sessions, respectively, 2 rats started to show gait alterations during the functional test which was performed 2\u20133 times weekly. These rats were killed after additional sessions which showed a worsening of the limp. The other trained rats and controls did not limp and were killed after 7\u201311 weeks. Histologic evaluation of the Achilles tendons from the exercised limb showed in the majority of the cases hypervascularization, increased number of nerve filaments and increased immunoreactivity for substance P and calcitonin gene-related peptide. The tendons from the nonstimulated limb looked normal. The distribution of collagen types I and II appeared normal in the tendon and its insertion to the calcaneus. Inflammation of the epi- and paratenon could be provoked in the rat, but tendon changes corresponding to chronic tendinosis did not develop within 11 weeks with the used training regime. The clinical relevance of this model for chronic tendon disease needs to be evaluated further.<\/jats:p>","DOI":"10.1159\/000016671","type":"journal-article","created":{"date-parts":[[2003,4,15]],"date-time":"2003-04-15T17:25:18Z","timestamp":1050427518000},"page":"30-39","source":"Crossref","is-referenced-by-count":86,"title":["Rat Model of Achilles Tendon Disorder"],"prefix":"10.1159","volume":"165","author":[{"given":"Karola","family":"Messner","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuzhi","family":"Wei","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Britt","family":"Andersson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"Gillquist","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tuomas","family":"R\u00e4s\u00e4nen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[1999,8,17]]},"container-title":["Cells Tissues Organs"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/16671","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/16671","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,24]],"date-time":"2025-04-24T04:45:45Z","timestamp":1745469945000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000016671"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1999]]},"references-count":0,"journal-issue":{"issue":"1","published-online":{"date-parts":[[1999,7,1]]}},"URL":"https:\/\/doi.org\/10.1159\/000016671","archive":["Portico"],"relation":{},"ISSN":["1422-6405","1422-6421"],"issn-type":[{"value":"1422-6405","type":"print"},{"value":"1422-6421","type":"electronic"}],"subject":[],"published":{"date-parts":[[1999]]}}}