Plasma levels of IL-6 correlate with hemodynamic abnormalities in acute pancreatitis in rabbits.
OBJECTIVE
To examine the relationship between plasma cytokine levels and cardiac and hemodynamic function.


METHODS
Measurement of cytokines and the systolic (left ventricular dimensions, heart rate, and cardiac output) and diastolic (early and late transmitral peak flow velocity: E and A-waves and their ratio) functions of the left ventricle (assessed by echocardiography) in rabbits.


METHODS
Laboratory and echocardiographic analyses were performed at baseline and at 1, 3, 6, 12, and 24 h after acute necrotizing pancreatitis induction (Group ANP), in rabbits after somatostatin pretreatment (Group S-ANP) and in sham-operated controls (Group C).


RESULTS
Left ventricular dilatation occurred at 6 h and cardiac output was increased 3 h after induction of acute necrotizing pancreatitis. Somatostatin pretreatment mitigated the left ventricular enlargement and filling abnormalities. Plasma level of IL-6 was increased significantly 3 h after pancreatitis induction, but to a lesser extent in Group S-ANP, while somatostatin prevented TNFalpha release (IL-6: Group ANP: 0, 0, 518+/-139, 956+/-125, 373+/-48, and 122+/-37 pg/ml; Group S-ANP: 0, 0, 191+/-68, 261+/-49, 23+/-13, and 0 pg/ml; TNFalpha: Group ANP: 88+/-42, 371+/-40, 2963+/-291, 276+/-30, 197+/-106, and 23+/-14 U/l; Group S-ANP: 91+/-34, 41+/-25, 68+/-42, 25+/-9, 0, and 0 U/ml). The increase in plasma level of IL-6 correlated significantly with left ventricular end-diastolic diameter and volume, cardiac output, and diastolic dysfunction.


CONCLUSIONS
Plasma levels of IL-6, but not TNFalpha correlate with cardiac output and left ventricular filling characteristics in acute pancreatitis. Somatostatin pretreatment improves the cardiac and hemodynamic changes, probably through the decrease in cytokine release.
Jambrik
Zoltán
Z
2nd Dept of Int Medicine and Cardiological Center, University of Szeged, Hungary.
Gyöngyösi
Mariann
M
Hegyi
Péter
P
Czakó
László
L
Takács
Tamás
T
Farkas
András
A
Mándy
Yvette
Y
Góg
Csaba
C
Glogar
Dietmar
D
Csanády
Miklós
M
D000818:Animals; D004452:Echocardiography; D006439:Hemodynamics / Q000502:physiology*; D018836:Inflammation Mediators / Q000097:blood; D015850:Interleukin-6 / Q000097:blood*; D019283:Pancreatitis, Acute Necrotizing / Q000097:blood* / Q000000981:diagnostic imaging / Q000503:physiopathology*; D011817:Rabbits; D012044:Regression Analysis; D014409:Tumor Necrosis Factor-alpha / Q000378:metabolism; D018487:Ventricular Dysfunction, Left / Q000097:blood* / Q000000981:diagnostic imaging / Q000503:physiopathology*
D018836:Inflammation Mediators; D015850:Interleukin-6; D014409:Tumor Necrosis Factor-alpha