Intestinal ischemia: morphological features--II.
Superoxide radicals produced during acute intestinal ischemia are biochemically related with the presence of hydrogen peroxyde. In this study we have investigated the distribution of peroxidase-catalase activity, histochemically determined, in the ischemic ileal wall. In the rat, complete arterial and venous occlusion produced a progressive increase in extra-vascular peroxidase-catalase activity with a maximum corresponding to the ileal wall. Probably the tissue peroxidase-catalase activity is related to massive degranulation of polymorphonucleates.
Santacroce
S
S
Istituto di I Patologia Speciale Chirurgica, Università degli Studi di Bari.
Nicolardi
G
G
Sinigaglia
E
E
Formosa
P
P
Bartoli
F
F
Veneziani
G
G
Demundo
M
M
Ambrosi
A
A
Santacroce
A
A
D000818:Animals; D002374:Catalase / Q000032:analysis; D007082:Ileum / Q000098:blood supply* / Q000473:pathology; D007413:Intestinal Mucosa / Q000473:pathology; D007511:Ischemia / Q000473:pathology*; D009504:Neutrophils / Q000201:enzymology; D009195:Peroxidase / Q000032:analysis; D051381:Rats; D011919:Rats, Inbred Strains
D002374:Catalase; D009195:Peroxidase