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We studied left ventricular (LV) cardiac output as estimated by ascending aorta blood flow (QAo) longitudinally in 31 healthy infants from birth through the first year of life using noninvasive pulsed Doppler ultrasound technique. The temporal mean ascending aortic blood flow velocity (VAo) was measured with a 5-MHz pulsed Doppler velocimeter and on line(More)
OBJECTIVE To investigate secretory leukocyte protease inhibitor (SLPI) concentrations in tracheal lavage fluids of neonates with an endotracheal tube in place during the first month of life, and to evaluate the relationship of SLPI to neutrophil counts and elastase activity in patients in whom bronchopulmonary dysplasia (BPD) developed versus those in whom(More)
Cardiac output (QAo) can be estimated noninvasively by pulsed Doppler (PD) ultrasonographic determination of mean ascending aortic blood flow velocity (VAo) combined with M-mode echocardiographic determination of ascending aortic cross sectional area (AAo). Cardiac output is calculated from the volumetric flow equation (QAo) = (VAo) X (AAo). Pulsed Doppler(More)
Aqueous extracts or infusions obtained from the flowers of Tilia species are widely used for the treatment of anxiety in folk medicine. In this work, the antiproliferative action of aqueous, dichloromethane and ethanol extracts obtained from Tilia cordata Mill. flowers on tumoral (BW 5147 lymphoma) and normal lymphocytes is described. Both extracts showed a(More)
The peri-implant reparative process is one of the factors involved in osseointegration. Local and systemic factors may contribute to the peri-implant micro-environment. The aim of this study was to assess the effect of dexamethasone (DXM) on the first stages of the post-implantation reparative process using a quantitative osseointegration experimental model(More)
An immune mechanism has been suggested in the pathogenesis of periodontal disease. Actinobacillus actinomycetemcomitants (Aa) has been implicated as one of the etiological agents that induces the major immune response together with a dense infiltrate of inflammatory cells. But the exact role of these immune cells in periodontal disease has not yet been(More)
We used a 20-MHz, range-gated, pulsed Doppler device to measure noninvasively femoral artery blood flow velocity patterns in 24 preterm infants with patent ductus arteriosus (PDA). Mean spatial flow velocity and its temporal average were recorded by illumination of the entire flow stream. Peak systolic forward flow velocity (Vs), peak diastolic retrograde(More)
Diazepam and Ro5-4864 effects on noradrenaline-induced rat vas deferens contractions were studied. We investigated whether central or peripheral type benzodiazepine receptors were involved, by studying the effects of the selective central or peripheral benzodiazepine receptor antagonists, flumazenil (Ro 151788) or PK 11195 respectively. Diazepam(More)