Effects of removing circulatory tumor necrosis factor by immunoadsorption on experimental endotoxin shock animals.
OBJECTIVE
To evaluate the effects of removing circulatory tumor necrosis factor (TNF) by immunoadsorption on endotoxin shock animals.


METHODS
Sixty New Zealand white rabbits were injected intravenously with lethal dose of endotoxin (10 Billion cfu/kg E. Coli endotoxin) and randomly divided into 3 groups: perfusion group, hemoperfusion started at 1 hour after injecting endotoxin through immunoadsorbent columns against TNF; pseudoperfusion group, hemoperfusion through blank columns; and control group, injected with endotoxin only. The arterial pressure, microcirculation of the mesentery, plasma levels of TNF, IL-1, IL-6, IL-8, nitrite, endothelin-1 (ET-1), alanine aminotransferase (ALT), aspartate aminotransferase (AST), creatinine were measured and analyzed and finally the survival rate was observed.


RESULTS
Plasma levels of TNF were sharply reduced after immunoadsorption. Moreover, release of IL-1, IL-6, IL-8, NO and ET-1 were also attenuated. Hemodynamic abnormalities could be improved and survival rate ameliorated significantly.


CONCLUSIONS
Specific immunoadsorption of circulating TNF might be a new and effective therapy for endotoxin shock.
Zhang
X
X
Department of Nephrology, Nanfang Hospital, Guangzhou, China.
Hou
F
F
Liang
M
M
Long
H
H
Wang
G
G
Tang
B
B
Zhang
G
G
Zhu
Y
Y
Zhuo
H
H
D000818:Animals; D019332:Endothelin-1 / Q000097:blood*; D007163:Immunosorbent Techniques; D007375:Interleukin-1 / Q000097:blood; D015850:Interleukin-6 / Q000097:blood*; D016209:Interleukin-8 / Q000097:blood; D011817:Rabbits; D011897:Random Allocation; D012772:Shock, Septic / Q000097:blood / Q000628:therapy*; D014409:Tumor Necrosis Factor-alpha / Q000378:metabolism*
D019332:Endothelin-1; D007375:Interleukin-1; D015850:Interleukin-6; D016209:Interleukin-8; D014409:Tumor Necrosis Factor-alpha