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Biomedical subjects

R Bataller Sifré

Publications and source records attributed to R Bataller Sifré.

9 recordsLinked to original sources

[Hepatobiliary clearance of glycocholic acid in Gilbert's disease].

AIM: To research the behaviour of one biliary acid (glyco-cholic) i.v. injected in patients with Gilbert's disease and in healthy controls, so that contribute to the knowledge of the pathophysiological correlate between bilirubin and biliary acids. PATIENTS AND METHODS: We include 15 patients with Gilbert's disease and 7 healthy voluntary ones. We injected i.v. glycocholic acid and obtained the clearance curve (CG-RIA Abbot method). We evaluated the possible biostatistically significant differences between the obtained values of both groups though the non-parametric method of Mann-Whitney. RESULTS: The clearance curve of both groups had a similar profile; biostatisticaly there are not significant differences between the serum values of glyco-cholic acid in both groups. CONCLUSIONS: The clearance of the glyco-cholic acid in patients with Gilbert's disease had a similar behaviour as in healthy controls, without biostatisticaly significant differences between both groups.

Bile↗

[Adverse effects of 2 forms of therapy with heparin in patients with non-surgical risk factors of venous thromboembolism].

Venous thromboembolism (VTE) is a frequent complication in hospitalized patients who have to stay in bed for long periods of time or with diseases favouring of low molecular weight (HLMW) developed during the past years have demonstrated that they are as effective as the non-fractionated heparins, but with the advantage of a better cutaneous absorption, greater bioavailability and plasmatic half-life, a more favourable antithrombotic/hemorrhagic ratio and a lower variability in the anticoagulant response to fixed doses. We have investigated the efficacy, efficiency and security of an HLMW (Enoxaparine) for the prevention of VTE, comparing it with an standard calcic heparin, subcutaneously administrated, in patients with non-surgical risk factors and more than 65 years of age. Based on our results, we cannot conclude that one therapy is better than the other, although the enoxaparine needs only one daily injection and it can be administrated in an out-patient basis for long periods of time, without the need of laboratory controls and the resulting cost savings.

Aged↗

[Viral replication, histologic damage and enzymatic activity in chronic hepatopathies caused by B virus].

The future of patients with chronic hepatitis (HC) due to B virus depends above all on the tendency of the interaction between viral activity and immune response. Viral activity (replication) (RV) can be expressed in these patients by two variants: a) "complete" or "early", associated with the presence in serum of HBsAg, HBeAg, and significant DNA polymerase activity, and b) "incomplete" or "late", in which anti-HBe is found in serum and there are scant or no histopathologic changes ("healthy carriers" in some cases). In prolonged infections viral replication declines gradually, although viral capsid protein continues to be synthesized and DNA-HBV is integrated into the genome. Viral replication per se does not condition the histologic damage (DH) expressive of liver cirrhosis with HBV (HCB). Other publications take a different view of this problem. The increase in viral replication often is proportional to a rise in serum GPT (an expression of histologic damage), but viral replication is not always associated with a progressive disease course. The immune defense leads to cytolysis and subsequent elimination of the HB virus. Some patients with high HBsAg levels have little active forms of liver cirrhosis; the DNA-HBV integrated would be capable of producing HBsAg but not HBcAg. It is precisely this that induces the response of cytotoxic T lymphocytes at the level of the hepatocyte surface. The presence in serum of anti-HBe IgM would be related to the expression of HBcAg on the hepatocyte membrane and/or the liberation of HBcAg particles by lysed hepatocytes. The relationship between the degree of histologic damage and serum aminotransferase levels is better established.

Chronic Disease↗