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In an attempt to elaborate in vitro on a therapeutic strategy that counteracts an inflammatory signal, we previously reported a novel immunopharmacological potential of glutathione, an antioxidant thiol, in regulating inflammatory cytokines. In the present study, we investigated the hypothesis that selective regulation of phosphodiesterases (PDEs), a family(More)
In this report we investigated the immunopharmacological role of selective and nonselective phosphodiesterase (PDE) inhibition in regulating the inhibitory-kappaB (IkappaB-alpha)/nuclear factor-kappaB (NF-kappaB) signaling transduction pathway. In fetal alveolar type II epithelial cells, PDE blockade at the level of the diverging cAMP/cGMP pathways(More)
OBJECTIVE To evaluate the effectiveness of nebulized pentoxifylline (PTXF) compared to intravenous dexamethasone (DX) or placebo (nebulized distilled water) for the prevention of bronchopulmonary dysplasia (BPD). METHODS One hundred and fifty very low birth weight infants were randomly assigned to three groups. Entry criteria were the need for oxygen(More)
Increased plasma tumour necrosis factor α (TNF) concentration correlates with mortality in sepsis. We suggested that pentoxifylline (PTXF), which is known to inhibit TNF production, may improve survival and attenuate clinical symptoms of sepsis in neonates. Plasma TNF levels were evaluated in 29 newborn infants with sepsis. Patients were randomly assigned(More)
OBJECTIVE To evaluate the influence of the methylxanthine derivative, pentoxifylline, on plasma levels of tumor necrosis factor (TNF)-alpha, interleukin (IL)-1, and IL-6 in prematurely delivered infants with generalized bacterial infections and to assess the effect of this immunomodulating drug on the clinical outcome in newborns with sepsis. DESIGN A(More)
The regulation of lipopolysaccharide (LPS)-mediated pro-inflammatory cytokine biosynthesis by reduction-oxidation (redox)-sensitive enzymes involved in maintaining intracellular glutathione homeostasis was investigated in fetal alveolar type II epithelial cells (fATII). Inhibition of glutathione-oxidized disulfide reductase, which recycles GSSG --> 2GSH, by(More)
OBJECTIVE The retina contains rods and cones that have membranes highly enriched with docosahexaenoic acid (DHA). Infants born prematurely are at risk of DHA insufficiency, because they may not have benefited from a full third trimester of the mother's lipid stores. Moreover, within the first 2 to 3 weeks of life, the main sources of lipids for premature(More)
*Oxygen Signalling Group, Centre for Research into Human Development, Tayside Institute of Child Health, Faculty of Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee DD1 9SY, Scotland, U.K., †Department of Neonatology, Jagiellonian University Medical College, PL-31-501 Cracow, Kopernika 23, Poland, ‡Department of Human(More)
BACKGROUND Preliminary studies suggest that fish-oil lipid emulsion given parenterally to very preterm infants reduces the severity of retinopathy (ROP) and cholestasis. METHODS Infants weighing <1250 g at birth were randomly allocated to 2 groups: an experimental group of 60 infants that received an intravenous (IV) soybean, olive oil, and fish oil(More)
Pentoxifylline (Trental, 5 mg/kg/h for 6 h) was administered to 17 premature infants with sepsis, on 3 successive days. A statistically significant decrease in mortality rate (P < 0.04) was observed in comparison to a retrospectively analysed group of 13 septic infants, who were treated in a comparative way but without the use of a pentoxifylline infusion.(More)