[Effects of glutamine on matrix metalloproteinase-3 and tissue inhibitor of metalloproteinase-3 expressions in myocardium of rats with sepsis].

Objective: The underlying mechanisms for cardiac dysfunction in sepsis include the inhibitory effect of endotoxin and inflammatory factors on myocardium and the decrease in cardiac myocardial cells in number. However, whether there is ventricular remodeling resulted from the abnormalities of extracellular collagen metabolism and whether glutamine (Gln) can protect myocardium from LPS-induced damage as in reperfusion are unknown. The aim of the present study was to examine the effects of Gln on the expressions of matrix metalloproteinase-3 (MMP-3), tissue inhibitor of metalloproteinase-3 (TIMP-3) and their mRNA in myocardium of rats with sepsis.

[Effects of glutamine on alpha-sarcomeric actin and its mRNA expression of myocardium in rats with endotoxemia].

Objective: Endotoxemia is a serious syndrome resulting in multi-organ failure. Once it happens, the penetration of small intestine epithelium increases, body liquid losses, then effective circulating blood decreases and serious metabolic acidosis, serious hypotension, systolic failure, and even shock may occur. In this pathological process, endotoxin, tumor necrosis alpha and systolic dysfunction play important roles.