Laura Cárdenas

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BACKGROUND The state of the brain reward system in major depressive disorder was assessed with dextroamphetamine, which probes the release of dopamine within the mesocorticolimbic system, a major component of the brain reward system, and produces measurable behavioral changes, including rewarding effects (eg, euphoria). We hypothesized that depressed(More)
Parenterally administered D-amphetamine has been used as a challenge drug to release dopamine, which in turns inhibits [11C]raclopride binding to dopaminergic D2 receptors as measured using positron emission tomography (PET) techniques. The primary objective of this study was to determine whether orally administered D-amphetamine would inhibit(More)
This study was conducted to compare the acceptability of manual and electric vacuum aspiration for first trimester elective abortion. Eighty-four women seeking abortions at less than 10 weeks gestation were randomized to abortion by manual or electric vacuum aspiration. Post-procedure questionnaires were administered to patients to assess pain, noise(More)
The following six pig slurries obtained after acidification and/or solid/liquid separation were used in the research: original (S) and acidified (AS) pig slurry, nonacidified (LF) and acidified (ALF) pig slurry liquid fraction, and nonacidified (SF) and acidified (ASF) pig slurry solid fraction. Laboratory incubations were performed to assess the effect of(More)
Major depressive disorder (MDD) and nicotine dependence are highly comorbid. MDD patients may use nicotine to ameliorate depressive symptoms. The pathophysiology of the comorbidity of these two disorders is unknown. We hypothesized that a dysfunctional dopaminergic brain reward system (BRS) might be a neurobiological link between MDD and nicotine dependence(More)
To test the hypothesis that family function differs in patients according to their level of diabetes control, family function was assessed using the Family APGAR questionnaire in low-income patients with adult-onset diabetes who were under comprehensive care in five community health centers. From 3,000 active patients, a group of 385 with the following(More)
A creolefish, Paranthias colonus Hildebrand, with deformities in the spinal column, was captured at Isla Espíritu Santo, B.C.S., México (24o35’ N; 110o24’ W). The specimen is in the icthyological collection of the Centro de Investigaciones Biológicas del Noroeste (CIBNOR) in La Paz, B.C.S. (#CIB1300). The spinal column has v-shaped lardosis in two positions(More)
Twenty-five per cent of the North American population smoke cigarettes regularly. Twelve smokers (aged 19 to 55 years, Fagerström test score 3 to 10) participated in a double-blind, placebo controlled, counterbalanced study to determine the extent to which subjective effects of smoking are altered by nicotine delivered by transdermal patches. Subjects wore(More)
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