{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T18:49:05Z","timestamp":1777920545831,"version":"3.51.4"},"reference-count":55,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[1994,5,1]],"date-time":"1994-05-01T00:00:00Z","timestamp":767750400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Vet Pathol"],"published-print":{"date-parts":[[1994,5]]},"abstract":"<jats:p>A polyneuropathy recognized in mature Rottweiler dogs is characterized by paraparesis that progresses to tetraparesis, spinal hyporeflexia and hypotonia, and appendicular muscle atrophy. Although signs may appear acutely, the course tends to be gradually progressive (up to 12 months or longer in some dogs) and may be relapsing. Nerve and muscle biopsies were examined from eight affected Rottweilers (six male and two female) between ages 1.5 and 4 years. Pronounced neurogenic atrophy was present in skeletal muscle samples. Changes in sensory and motor peripheral nerves included loss of myelinated nerve fibers, axonal necrosis, and variable numbers of fibers with inappropriately thin myelin sheaths. Ultrastructural findings included myelinated fibers showing myelinoaxonal necrosis, demyelinated fibers often associated with macrophage infiltration, many axons with myelinlike membranous profiles, increased endoneurial collagen, occasional axonal atrophy, and numerous B\u00fcngner bands. Lesions in unmyelinated fibers included increased numbers of Schwann cell profiles and loss of axons in Schwann cell subunits. Morphologic and morphometric studies indicated preferential loss of medium (5.5\u20138 \u03bcm) and large (8.5\u201312.5 \u03bcm) fibers, which was more severe in distal parts of nerves than in more proximal regions and nerve roots. The cause was not determined; however, histopathologic studies suggest this condition is a dying-back distal sensorimotor polyneuropathy that has morphologic and morphometric similarities to hereditary motor and sensory neuropathy (HMSN) type II in humans.<\/jats:p>","DOI":"10.1177\/030098589403100304","type":"journal-article","created":{"date-parts":[[2010,1,27]],"date-time":"2010-01-27T13:39:12Z","timestamp":1264599552000},"page":"316-326","source":"Crossref","is-referenced-by-count":25,"title":["Distal Sensorimotor Polyneuropathy in Mature Rottweiler Dogs"],"prefix":"10.1177","volume":"31","author":[{"given":"K. 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