Experimental models of plasma perfusion.
A system allowing repeated plasma perfusion in the unrestrained conscious rat was developed in order to examine the effects of plasma filtration with on-line sorbent treatment of plasma in various models of disease. In experimental autoimmune glomerulonephritis, perfusion over a column coated with glomerular basement membrane (GBM) antigen lowered circulating levels of anti-GBM antibodies. In experimental endotoxaemia, perfusion over a column coated with polymixin B (PB) lowered circulating endotoxin levels and protected animals from haematological abnormalities and death. In experimental acute hepatic failure, perfusion over a combination of charcoal, resin, and PB columns improved survival in grades II and III hepatic coma. This experimental system has allowed preclinical evaluation of the effectiveness of different sorbents in the treatment of a range of disorders.
Department of Medicine, Royal Postgraduate Medical School, London, England.
C D
CD
Pusey
M
M
Aslam
J
J
Cohen
J M
JM
Courtney
C J
CJ
Ryan
D000818:Animals; D000837:Anion Exchange Resins; D019867:Anti-Glomerular Basement Membrane Disease / Q000628:therapy; D002606:Charcoal; D005112:Extracorporeal Circulation / Q000295:instrumentation; D006464:Hemoperfusion / Q000295:instrumentation / Q000379:methods*; D006501:Hepatic Encephalopathy / Q000628:therapy; D007163:Immunosorbent Techniques; D051381:Rats; D011914:Rats, Inbred BN; D011919:Rats, Inbred Strains; D012117:Resins, Synthetic; D012685:Sepharose; D012772:Shock, Septic / Q000628:therapy; D016060:Sorption Detoxification / Q000295:instrumentation / Q000379:methods*
D000837:Anion Exchange Resins; D012117:Resins, Synthetic; D002606:Charcoal; C060301:Br 601; D012685:Sepharose