Abstract
Background and aims: Analysis of the influence of the effects of increased intestinal permeability on haemodynamic alterations in human immunodeficiency virus (HIV)-infected patients with decompensated hepatitis C virus (HCV)-related liver disease. Methods: Forty HIV/HCV co-infected patients and 40 HCV mono-infected patients, 20 of them with compensated cirrhosis and 20 with a previous decompensation, and 20 healthy controls, were studied. Intestinal permeability was determined by serum levels of lipopolysaccharide-binding protein (LBP). Monocyte expression of toll-like receptor 4 (TLR-4), serum levels of interleukin (IL)-6 and soluble receptors of tumour necrosis factor (sTNFRI) were analysed. Cardiac index, systemic vascular resistance (SVR), plasma renin activity (PRA) and aldosterone concentration were also determined in cirrhotic patients. Results: Serum levels of LBP, TLR-4, IL-6 and sTNFRI were significantly higher in HIV–HCV co-infected and HCV mono-infected patients with decompensated cirrhosis compared with those with compensated liver disease. Significantly lower values of SVR and higher values of cardiac index, PRA and aldosterone concentration were observed in patients with decompensated cirrhosis compared with those with compensated liver disease, particularly in those with elevated levels of IL-6. There were no significant differences between HIV/HCV co-infected and HCV mono-infected patients. Conclusions: Higher intestinal permeability and consequent macrophage activation is observed in patients with cirrhosis; this permeability is even higher in those with portal hypertension. Serum values of IL-6 are associated with the characteristic haemodynamic derangement observed in advanced phases of cirrhosis. HIV/HCV co-infected cirrhotic patients present inflammatory and systemic haemodynamic alterations similar to those observed in HCV mono-infected patients.
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