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Serum ceruloplasmin concentrations in rats with primary and transplanted sarcomas induced by nickel subsulfide

Journal Article · · Ann. Clin. Lab. Sci.; (United States)
OSTI ID:6783495
Ceruloplasmin (CPN) concentrations were measured by p-phenylenediamine oxidase assay in serums from (a) 30 control Ficher rats; (b) 5 rats with primary sarcomas induced by i.m. injection of nickel subsulfide (..cap alpha..Ni/sub 3/S/sub 2/), and (c) 12 rats at intervals up to six weeks after s.c. transplantation of four ..cap alpha..Ni/sub 3/S/sub 2/-induced sarcomas. Serum CPN concentrations were not significantly increased in rats with primary sarcomas (mean = 0.38 g per liter) (S.D. +- 0.05), versus 0.35 g per liter (S.D. +- 0.04) in controls. In contrast, serum CPN concentratins were increased witin 11 to 21 days in all rats with transplanted sarcomas. Maximum concentrations of serum CPN occurred at 31 to 34 days after tumor transplantation, (mean = 0.56 +- 0.05 g per liter), equivalent to 1.6 +- 0.2 times the initial CPN concentrations in serums obtained prior to treatment (P <0.001). The development of hyperceruloplasminemia in rats with transplanted sarcomas and not in rats with primary sarcomas is attributed to greatly enhanced growth-rates of the transplanted neoplasms.
Research Organization:
Univ. of Connecticut, Farmington
DOE Contract Number:
EY-76-S-02-3140
OSTI ID:
6783495
Journal Information:
Ann. Clin. Lab. Sci.; (United States), Journal Name: Ann. Clin. Lab. Sci.; (United States) Vol. 9:1; ISSN ACLSC
Country of Publication:
United States
Language:
English