Canine immunoreactive insulin quantitation using, five commercial radioimmunoassay kits

Stockham, S.L.; Nachreiner, R.F.; Krehbiel, J.D.

American Journal of Veterinary Research 44(11): 2179-2183

1983


ISSN/ISBN: 0002-9645
PMID: 6359984
Document Number: 197503
Five commercial radioimmunoassay (RIA) kits developed for measuring human immunoreactive insulin (IRI) were evaluated for their capability to measure canine IRI. Evaluation criteria included precision, dilutional parallelism, sensitivity, and comparison of IRI concentration in 4 control serum samples. One RIA kit had good dilutional parallelism, consistently good precision, and adequate sensitivity. Other RIA kits had poorer performance in dilutional parallelism or precision. No RIA kit measured the same IRI concentrations in all 4 control sera as did another. The results indicated that quantitation of canine IRI by some commercial RIA kits (for human use) may be unreliable. Variations in IRI concentrations quantitated indicated that reference intervals for healthy dogs should be established for each insulin RIA.

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