ABSTRACT
Forty-six male SD rats were randomly divided into 3 groups:control group(Grp 1), exhaustive swimming group(Grp 2) and recovery from swimminggroup (Grp 3). The lipid peroxidase (LPO) content and superoxide dismutase(SOD) activity of kidney, the excretion rate of total urinary protein (TUP)and the plasma angiotensin II(AII) content were measured. Their ultrastructuralchanges of kidney were investigated. It was shown that after exhaustive swimming,the LPO contents of kidney,the AII and the excretion rate of TUP increased significantly (p0.05). In Grp 3,the LPO and theexcretion rate of TP were significantly higher than Grp 2 (p
ABSTRACT
Forty-five patients with burn area exceeding 30% TBSA were studied prospectively. Among these 45 patients, 13 developed multiple organ failure (MSOF). Blood superoxide, dismutase (SOD) activity and plasma malondialdehyde (MDA) levels were sequentially determined to assess the role of excessive release of oxygen radicals and lipid peroxidase injury in the mechanism of pathogenesis of postburn MSOF. The results showed that the anti-oxidation capacity of the body was markedly depressed and lipid peroxidase injury markedly increased after a severe burn injury. These changes were not only related to hypovolemic shock after the injury, but also the severity of the burn injury and infection.