{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T17:06:48Z","timestamp":1777914408781,"version":"3.51.4"},"reference-count":53,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[1989,4,1]],"date-time":"1989-04-01T00:00:00Z","timestamp":607392000000},"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":["Toxicol Pathol"],"published-print":{"date-parts":[[1989,4]]},"abstract":"<jats:p>Histochemical markers are important for the early detection of chemically initiated neoplasia in experimental animal studies. The marker, iron resistance, was evaluated in the Shasta strain of rainbow trout ( Salmo gairdneri). Twenty-one-day-old trout embryos were exposed to 100 ppm aqueous N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) for 30 min in a static water bath. Fish were fed a semipurified diet, and sampled monthly from the 4th to the 9th month. Two days before sampling, fish were iron-loaded with a single ip dose of 0.30 mg iron dextran\/100 g body weight. Livers and kidneys were conventionally processed to paraffin sections for iron, or hematoxylin and eosin (H&amp;E) staining. Normal hepatocytes accumulated iron in pericanalicular locations, but in hepatocytes from carcinogen-altered foci and tumors, iron staining was clearly reduced or absent. Normal renal tubule cells exhibited slight to moderate iron staining, while those from nephroblastoma were iron resistant. These results establish iron resistance as a property of preneoplastic and neoplastic trout hepatocytes and nephroblastoma cells for the first time. Iron resistance may of fer a practical histochemical marker in experimental fish models of hepatocellular carcinoma and nephroblastoma.<\/jats:p>","DOI":"10.1177\/019262338901700302","type":"journal-article","created":{"date-parts":[[2017,1,7]],"date-time":"2017-01-07T02:46:17Z","timestamp":1483757177000},"page":"474-482","source":"Crossref","is-referenced-by-count":2,"title":["Iron Resistance of Hepatic Lesions and Nephroblastoma in Rainbow Trout                   (\n                    <i>Salmo gairdneri<\/i>\n                    ) Exposed to MNNG"],"prefix":"10.1177","volume":"17","author":[{"given":"Brian C.","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Food Science & Technology, Oregon State University, Corvallis, Oregon 97331-6602"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jerry D.","family":"Hendricks","sequence":"additional","affiliation":[{"name":"Department of Food Science & Technology, Oregon State University, Corvallis, Oregon 97331-6602"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"George S.","family":"Bailey","sequence":"additional","affiliation":[{"name":"Department of Food Science & Technology, Oregon State University, Corvallis, Oregon 97331-6602"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1989,4,1]]},"reference":[{"key":"atypb1","series-title":"Am. 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