OBJECTIVES We sought to explore the association between renal insufficiency and mortality among women with heart failure (HF) and to evaluate this risk by the presence of preserved or depressed systolic function. BACKGROUND Although HF is common in older women, little is known about their risk factors for mortality. METHODS This prospective cohort study retrospectively analyzed data from th...

It is now generally accepted that alpha-adrenoreceptor-mediated vasoconstriction is attenuated during exercise, but the efficacy of nonadrenergic vasoconstrictor pathways during exercise remains unclear. Thus, in eight young (23 +/- 1 yr), healthy volunteers, we contrasted changes in leg blood flow (ultrasound Doppler) before and during intra-arterial infusion of the alpha(1)-adrenoreceptor ago...

Increasing production of free radicals in organisms is one of the putative mechanisms by which a extremely low frequency magnetic field (ELF-MF) may affect biological systems. The present study was designated to assess if ELF-MF applied in the magnetotherapy, affects generation of reactive oxygen species (ROS) in heart tissue and antioxidant capacity of plasma according to its working time. The...

BACKGROUND Increased arterial stiffness is a well-established cardiovascular risk factor. Mechanical stimuli to artery, such as compression, elicit vasodilation and acutely decrease arterial stiffness. As whole-body vibration (WBV)-induced oscillation is propagated at least to lumbar spine, WBV mechanically stimulates abdominal and leg arteries and may decrease arterial stiffness. WBV is feasib...

The purpose of this study was to investigate in developing animals, the cardiovascular responses to severe hemorrhage at which compensatory mechanisms fail and when blood pressure remains decreased after blood loss. Two groups of conscious lambs (Group I: one to two weeks, N = 7; group II: six to seven weeks, N = 7) were studied. Mean arterial pressure, systolic and diastolic pressures, and hea...

Many countries are confronted with a striking problem of morbidity fluorosis that appears because an increased concentration fluorides in drinking water. The objective this study is to explore opportunities for removal fluoride from aqueous solutions using cheap and easily accessible adsorbents, such as exhaustive coffee grounds iron sludge establish the efficiency removal. Twelve doses (1, 2, ...

SUMMERY A controlled double -blind clinical trial was performed in 40 normal children, with no underlying pulmonary pathology, who underwent surgery. The objective was to study the effect of increase in the rate of respiration (RR) on PaCo2 in the anesthetized child . The RR of the control group (n=20) RR was set at 40/min. In the study patients (n=20) RR was set at 40/min. For the first 30 mi...

BACKGROUND Studies have shown that permissive hypotension for uncontrolled hemorrhagic shock can result in good resuscitation outcome. The ideal target mean arterial pressure (MAP) and the tolerance time for permissive hypotension have not been determined. METHODS To elucidate the ideal target MAP and tolerance time for permissive hypotension with uncontrolled hemorrhagic shock rats, the effe...