1. Male and female rats representing the four inbred strains [Wistar (albino), Sprague-Dawley (albino), DA (brown) and PVG (hooded) rats] were injected intraperitoneally with 4.5-5.5 mg of Cohn V bovine albumin day−1 g−1 body wt.
2. the levels of proteinuria and glomerular ultrastructural damage induced in response to hyperalbuminaemia varied widely with the strain and sex of rat studied, being highest in the male Wistar and lowest in the male Sprague-Dawley.
3. A survey of the relevant literature shows that these results probably explain most of the reported inconsistencies and anomalies concerning the effect of parenteral protein injection in the rat.