Richard Lopez

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BACKGROUND Liver transplantation (LT) increases the risk of de novo malignancies including skin cancers. However, risk factors for this type of cancers have not been well studied. OBJECTIVE To determine the incidence of skin cancer in LT recipients, and to identify the risk factors of this type of cancer. METHODS We identified all adult patients who(More)
BACKGROUND There is increased prevalence of hepatocellular carcinoma (HCC) among African Americans (AA). Multicenter studies have shown advanced presentation, underutilization of treatment and decreased survival following liver transplantation (LT) among AA. However outcomes from single centers are not well reported. OBJECTIVE To determine the outcome of(More)
BACKGROUND Nonalcoholic steatohepatitis (NASH) is an increasing indication for orthotopic liver transplantation (OLT) in the United States and other countries. However, the incidence of disease recurrence and natural course following OLT remains incompletely understood. OBJECTIVE To estimate the incidence of recurrent disease, outcome and identify risk(More)
To investigate the effects of the contract-relax-antagonist-contract (CRAC) form of proprioceptive neuromuscular facilitation (PNF) stretching, with and without a warm-up, on postural stability. Thirty volunteers (15 men and 15 women, age: 25.17 +/- 5.4 years, height: 173.76 +/- 8.2 cm, and weight: 72.03 +/- 14.87 kg) were randomly assigned to 1 of 3(More)
BACKGROUND Recurrence of hepatitis C virus (HCV) infection following orthotopic liver transplantation (OLT) is universal. There is paucity of data on the safety and efficacy of interleukin (IL)-2 receptor antagonist (IL-2RA) when added to the standard immunosuppression regimen in OLT recipients with recurrent HCV infection. OBJECTIVES To evaluate the(More)
INTRODUCTION The clinically useful concentrations of propofol to provide loss of consciousness in children have not been determined. Therefore, target-controlled infusion systems are used with parameters taken from results for adults. As a result, hypnosis can be inadequate in the pediatric population. We studied the dose-response relationship by comparing(More)
OBJECTIVE To determine the behavior of the copper-zinc superoxide dismutase enzyme (SOD/Cu/Zn) in tissue homogenates of rat brains with ischemic lesions produced following the model of global cerebral ischemia without arterial hypotension. MATERIAL AND METHODS Thirty rats were randomly assigned to five groups of six animals each. Bilateral carotid(More)
The most notable changes in the 35-lead precordial electrocardiogram in 22 subjects in the first 6--12 months after acute myocardial infarction were a reduction in the amplitude of Q waves and a significant increase in the amplitude of the R waves. Patients who, in a random trial, had been given 100 mg atenolol daily from admission showed a significantly(More)
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