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The Generalized Shwartzman Reaction in Pigs Induced by Diet and Single Injection of Disintegrated Cells or Partially Purified Endotoxin from Escherichia Coli

Den generaliserte Shwartzmans reaksjon (GSR) hos gris fremkalt ved hjelp av diett og en enkelt injeksjon av knuste bakterier eller deluis renset endotoksin fremstilt av Escherichia coli

Abstract

Two experiments (Exps. I and II) were performed in pigs to test the effect of disintegrated cells and partially purified endotoxin derived from E. coli. The pigs were fed a diet supplemented with cod liver oil in one group, cod liver oil plus vitamin E in another group, and only commercial pig food in a third group. After one injection of disintegrated cells in Exp. I, lesions characteristic for generalized Shwartzman reaction (GSR), including hemorrhagic necrosis of the skin developed in the two groups given cod liver oil. A single case was also recorded among the control pigs after injection of a large dose. One injection of partially purified endotoxin in Exp. II gave almost similar results as in Exp. I. These two experiments show that pigs fed relatively high amounts of unsaturated fat are predisposed for the GSR and that vitamin E may, to a certain extent, protect against the development of the reaction.

Sammendrag

To forsøk (Exp. I & II) ble utført på gris for å prøve effekten av knuste bakterier og delvis renset endotoksin fremstilt av E. coli. Grisene var foret med en diet som var tilblandet tran i en gruppe og tran og vitamin E i en annen gruppe. I kontrollgruppen ble det foret bare med kommersielt grisefor. Etter en injeksjon av knuste bakterier i Exp. I utviklet det seg forandringer karakteristisk for GSR i de to gruppene som fikk trantilskudd i foret. Disse forandringene omfattet også hemorrhagiske hudnekroser. Et enkelt tilfelle av GSR ble også registrert etter injeksjon av en stor dose knuste bakterier blant grisene i kontrollgruppen. En injeksjon av delvis renset endotoksin i Exp. II gav nesten de samme resultatene som i Exp. I. Disse to forsøkene viser at griser foret med forholdsvis store mengder umettet fett er preparert for GSR og at vitamin E til en viss grad kan beskytte mot at denne reaksjonen utvikles.

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Teige, J., Nordstog, K., Fjølstad, M. et al. The Generalized Shwartzman Reaction in Pigs Induced by Diet and Single Injection of Disintegrated Cells or Partially Purified Endotoxin from Escherichia Coli. Acta Vet Scand 14, 92–106 (1973). https://doi.org/10.1186/BF03547413

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