Publicações científicas

Hyperhomocysteinemia in liver transplant recipients: prevalence and multivariate analysis of predisposing factors.

Herrero JI, Quiroga J [ES], Sangro B, Beloqui O, Pardo F, Cienfuegos JA, Prieto J.
Liver Unit, Clínica Universitaria, University of Navarra, Pamplona, Spain.

Revisão:Liver Transplantation

Data: 1/Set/2000

Cirurgia Geral e Digestiva Hepatologia

Liver transplant recipients have an increased risk for cardiovascular disease because of a high incidence of obesity, arterial hypertension, diabetes mellitus, and hyperlipidemia. Hyperhomocysteinemia has been found to be an important risk factor for cardiovascular disease in large studies.

Fasting serum levels of homocysteine were measured in 105 liver transplant recipients, and hyperhomocysteinemia was defined as a fasting serum homocysteine level greater than 13 micromol/L. Patients with versus without hyperhomocysteinemia were compared. The possible association of hyperhomocysteinemia with age, sex, cause of liver disease, time elapsed since liver transplantation, immunosuppressive therapy, folic acid level, liver function test results, renal function, and other cardiovascular risk factors was investigated. Patients with serum homocysteine levels greater than 15 micromol/L were treated with folic acid, 10 mg/d, and serum homocysteine levels were measured again 1 to 3 months later in 10 patients. Hyperhomocysteinemia was detected in 28 patients (27%). In univariate analysis, it was associated with hepatitis C virus infection, treatment with mycophenolate mofetil, and greater serum levels of alkaline phosphatase, gamma-glutamyl transpeptidase, urea, and creatinine. In multivariate analysis, only greater serum levels of creatinine (P =.006) were associated with hyperhomocysteinemia.

Treatment with folic acid resulted in a decrease in fasting serum homocysteine levels in 9 of the 10 patients tested (P =.01). Hyperhomocystinemia, associated with renal dysfunction, is a frequent finding in liver transplant recipients. Treatment with folic acid may reduce fasting homocysteine levels.

CITAÇÃO DO ARTIGO  Liver Transpl. 2000 Sep;6(5):614-8

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