{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T14:53:42Z","timestamp":1788274422393,"version":"build-2803163510"},"reference-count":51,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[1995,5,1]],"date-time":"1995-05-01T00:00:00Z","timestamp":799286400000},"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":[[1995,5]]},"abstract":"<jats:p>To better characterize and compare the toxicity of and lesions produced by locoweed ( Astragalus mollissimus) with those of swainsonine and a related glycoside inhibitor, castanospermine, 55 Sprague-Dawley rats were randomly divided into 11 groups of five animals each. The first eight groups were dosed via subcutaneous osmotic minipumps with swainsonine at 0,0.1,0.7,3.0,7.4, or 14.9 mg\/kg\/day or with castanospermine at 12.4 or 143.6 mg\/kg\/day for 28 days. The last three groups were fed alfalfa or locoweed pellets with swainsonine doses of 0, 0.9, or 7.2 mg\/kg\/day for 28 days. Swainsonine- and locoweed-treated rats gained less weight, ate less, and showed more signs of nervousness than did controls. Histologically, these animals developed vacuolar degeneration of the renal tubular epithelium, the thyroid follicular cells, and the macrophage-phagocytic cells of the lymph nodes, spleen, lung, liver, and thymus. Some rats also developed vacuolation of neurons, ependyma, adrenal cortex, exocrine pancreas, myocardial epicytes, interstitial cells, and gastric parietal cells. No differences in lesion severity or distribution were detected between animals dosed with swainsonine and those dosed with locoweed. Rats dosed with castanospermine were clinically normal; however, they developed mild vacuolation of the renal tubular epithelium, the thyroid follicular epithelium, hepatocytes, and skeletal myocytes. Special stains and lectin histochemical evaluation showed that swainsonine- and castanospermine-induced vacuoles contained mannose-rich oligosaccharides. Castanospermine-induced vacuoles also contained glycogen. These results suggest that 1) swainsonine causes lesions similar to those caused by locoweed and is probably the primary locoweed toxin; 2) castanospermine at high doses causes vacuolar changes in the kidney and thyroid gland; and 3) castanospermine intoxication results in degenerative vacuolation of hepatocytes and skeletal myocytes, similar to genetic glycogenosis.<\/jats:p>","DOI":"10.1177\/030098589503200311","type":"journal-article","created":{"date-parts":[[2010,1,26]],"date-time":"2010-01-26T02:27:46Z","timestamp":1264472866000},"page":"289-298","source":"Crossref","is-referenced-by-count":76,"title":["The Lesions of Locoweed (\n                    <i>Astragalus mollissimus<\/i>\n                    ), Swainsonine, and Castanospermine in Rats"],"prefix":"10.1177","volume":"32","author":[{"given":"B. L.","family":"Stegelmeier","sequence":"first","affiliation":[{"name":"USDA Agricultural Research Service, Poisonous Plant Research Laboratory, Logan, UT"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R. J.","family":"Molyneux","sequence":"additional","affiliation":[{"name":"USDA Agriculture Research Service, Western Regional Research Center, Albany, CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A. D.","family":"Elbein","sequence":"additional","affiliation":[{"name":"Department of Biochemistry, University of Arkansas, Little Rock, AR"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"L. 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