Abstract:
:An increase in polymorphonuclear leukocytes (PMNs) and proinflammatory chemokines, such as IL-8 and macrophage inflammatory protein-1 alpha (MIP), are found in the airways during early stages of bronchopulmonary dysplasia. We determined whether IL-10 produces a dose-related inhibition of proinflammatory chemokine release from stimulated neutrophils of the newborn and whether the mechanism involves the pivotal transcription factor, nuclear factor-kappa B. PMNs isolated from the cord blood of healthy newborns were stimulated submaximally with either lipopolysaccharide (n = 5) or tumor necrosis factor (n = 4), with and without IL-10 (0.01-1000 ng/mL). IL-8 and MIP release were measured in cell culture supernatants at 18 h. The presence or absence of nuclear factor-kappa B activity and inhibitor-kappa B alpha degradation was measured at 30 min and 3 h after PMN stimulation began. During lipopolysaccharide stimulation, IL-10 significantly reduced IL-8 levels from 50 +/- 16 ng/mL to 7 +/- 3 ng/mL, and MIP levels from 14 +/- 5 to 0.7 +/- 0.1 ng/mL (mean +/- SEM, p < 0.01). IL-10 produced an insignificant reduction in IL-8 and MIP levels after stimulation of PMNs with tumor necrosis factor. IL-10 did not inhibit nuclear factor-kappa B activation and inhibitor-kappa B alpha degradation in PMNs stimulated with tumor necrosis factor or lipopolysaccharide for 30 min. After PMN stimulation for 3 h, inhibitor-kappa B alpha cytoplasmic levels were restored; however, they were unaffected by IL-10. We conclude that IL-10 is a potent inhibitor of lipopolysaccharide-stimulated release of IL-8 and MIP from neutrophils of the newborn via a mechanism not involving nuclear factor-kappa B activity. Further work is needed to determine whether exogenous IL-10 may be useful for suppressing inflammation in bronchopulmonary dysplasia.
journal_name
Pediatr Resjournal_title
Pediatric researchauthors
Tryzmel J,Miskolci V,Castro-Alcaraz S,Vancurova I,Davidson Ddoi
10.1203/01.PDR.0000077471.36217.6Esubject
Has Abstractpub_date
2003-09-01 00:00:00pages
382-6issue
3eissn
0031-3998issn
1530-0447pii
01.PDR.0000077471.36217.6Ejournal_volume
54pub_type
杂志文章abstract::A son of related Turkish parents had grossly elevated serum tyrosine concentration and excreted tyrosine and p-hydroxyphenolic acids into the urine, whereas neither succinylacetone nor succinylacetoacetate could be demonstrated. The tyrosine concentration was normalized by a proper diet. This was not followed strictly...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198407000-00023
更新日期:1984-07-01 00:00:00
abstract:BACKGROUND:Exposure to inflammation exacerbates injury in neonatal encephalopathy (NE). We hypothesized that brain biomarker mRNA, cytokine mRNA and microRNA differentiate inflammation (E. coli LPS), hypoxia (Hypoxia), and inflammation-sensitized hypoxia (LPS+Hypoxia) in an NE piglet model. METHODS:Sixteen piglets wer...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/s41390-020-0986-3
更新日期:2020-06-10 00:00:00
abstract::Pulmonary surfactant proteins SP-B and SP-C were isolated from lavage fluids of bovine lungs and recombined (lipid/proteins, 9/1, wt/wt) with dipalmitoyl phosphatidylcholine for testing in vitro and in surfactant-deficient adult rats. Using a pulsating bubble surfactometer, we found that inflation pressures of bubbles...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198805000-00010
更新日期:1988-05-01 00:00:00
abstract::BACKGROUNDLow birth weight is associated with childhood stunting, but equivalent associations for birth body composition (BC) remain unknown. The aim of this study was to assess associations between birth BC and height-for-age z-score (HAZ) at 2 years of age.METHODSIn a prospective cohort study, fat mass (FM) and fat-...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2017.59
更新日期:2017-08-01 00:00:00
abstract::Left ventricular (LV) output nearly triples at birth, in association with increases in serum catecholamines. Similar increases in catecholamines in utero, however, do not increase output. We hypothesized that catecholamines increase contractility in utero, but that output cannot increase until LV loading conditions ar...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199701000-00009
更新日期:1997-01-01 00:00:00
abstract::This prospective randomized pilot study aimed to test the hypotheses that partial liquid ventilation combined with a high positive end-expiratory pressure (PEEP) and a moderate tidal volume results in improved gas exchange and lung mechanics without negative hemodynamic influences compared with conventional mechanical...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-200208000-00015
更新日期:2002-08-01 00:00:00
abstract::Sparse-fur mice, 28 d of age with the x-chromosomal inherited defect of ornithine carbamoyltransferase, were used to investigate if tryptophan and the serotonin pathway in the brain are affected in this animal model which closely resembles the human inborn error of metabolism. Increased concentrations of tryptophan an...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198404000-00014
更新日期:1984-04-01 00:00:00
abstract:BACKGROUND:Observational studies suggest that asthma control improves after adenotonsillectomy, but longitudinal studies that correlate the effect of the procedure on the levels of biomarkers associated with airway inflammation are limited. METHODS:We conducted a longitudinal, observational study on pediatric patients...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2013.237
更新日期:2014-03-01 00:00:00
abstract::Neonatal animals of several species are more tolerant of hyperoxic exposure than are adults, but the mechanisms of increased neonatal tolerance are unknown, as are the cell types, if any, that contribute to oxygen resistance. We studied the effect of in vivo exposure to 85% oxygen for 72 h on the activities of the ant...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199205000-00005
更新日期:1992-05-01 00:00:00
abstract::Prenatal maternal stress has been shown to impair functioning in nonhuman primate offspring. Little is known about the effects of prenatal stress on intellectual and language development in humans because it is difficult to identify sufficiently large samples of pregnant women who have been exposed to an independent s...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/01.PDR.0000136281.34035.44
更新日期:2004-09-01 00:00:00
abstract::To delineate the role of growth hormone (GH) in the development and function of the immune system, immunological parameters including quantitative immunoglobulins, T and B lymphocytes, phytohemagglutinin lymphoproliferative response and delayed hypersensitivity skin tests were studied in nine GH-deficient children pri...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198503000-00009
更新日期:1985-03-01 00:00:00
abstract::An amendment to this paper has been published and can be accessed via a link at the top of the paper. ...
journal_title:Pediatric research
pub_type: 已发布勘误
doi:10.1038/s41390-019-0680-5
更新日期:2020-04-01 00:00:00
abstract::The risk of pulmonary hemorrhage is increased in extremely low birth weight infants treated with surfactant. The pathogenesis of this increased risk is far from clear. We tested whether exposure of cell membranes to surfactant may lead to increased membrane permeability, hypothesizing that this process may contribute ...
journal_title:Pediatric research
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract::The purpose of the present study was to determine if autoregulation of cerebral blood flow (CBF) is present in the preterm fetal lamb and, if present, to measure the range of mean arterial blood pressure over which autoregulation exists. Thirty-seven measurements of CBF were made in seven preterm fetal lambs (118-122 ...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198502000-00001
更新日期:1985-02-01 00:00:00
abstract::Respiratory parameters of skeletal muscle were determined in permeabilized muscle fibers by adapting a technique described by Veksler et al. for cardiac fibers (Biochim Biophys Acta, 892:191-196, 1987). This method consists of the permeabilization of muscle fibers by saponin by allowing respiratory substrates and inhi...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199207000-00004
更新日期:1992-07-01 00:00:00
abstract:BACKGROUND:Scoring tools used to quantify withdrawal in infants with neonatal abstinence syndrome (NAS) are often confounded by subjective measurements. This study assessed salivary cortisol as an objective biomarker of withdrawal severity in opioid-exposed newborns. METHODS:A prospective study was conducted in 25 ful...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/s41390-019-0601-7
更新日期:2020-05-01 00:00:00
abstract::The sheep has served as an informative animal model for investigation of human fetal and newborn erythropoiesis and red blood cell (RBC) kinetics. We previously validated the permanent label (14C)cyanate for measuring red cell volume (RCV) in sheep. Here, we validate biotin labeling of RBCs as a nonradioactive method ...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/PDR.0b013e318183f119
更新日期:2008-11-01 00:00:00
abstract::The cerebral metabolic effects of hypoglycemia due to intrauterine growth retardation were studied in newborn dogs. Intrauterine growth retardation was induced in newborn dogs after 3 days of maternal nutritional deprivation (birth weight 251 +/- 7 versus 227 +/- 7 g, p less than 0.01). After birth, growth retarded pu...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198811000-00022
更新日期:1988-11-01 00:00:00
abstract::The purpose of this study is to determine whether the oxidative injury markers, protein carbonyls and malondialdehyde (MDA), are elevated in tracheal aspirates from very low birth weight (< 1500 g) infants; to determine whether levels correlate with myeloperoxidase as a marker of neutrophil inflammation; and to assess...
journal_title:Pediatric research
pub_type: 临床试验,杂志文章
doi:10.1203/00006450-200005000-00014
更新日期:2000-05-01 00:00:00
abstract:BACKGROUND:Cognitive impairment has been documented in adult diabetes but is unclear in pediatric diabetes. No study had been conducted to explore the relationship between attention-deficit/hyperactivity disorder (ADHD) and diabetes. Using a population-based data set, we aimed to examine the association between ADHD an...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2013.5
更新日期:2013-04-01 00:00:00
abstract::Several hours after an hypoxic-ischemic injury to the developing brain, hyperemia, then seizures, edema, and infarction can develop. The roles of nitric oxide (NO) synthesis and excitotoxin accumulation during these later phases of injury are not known. The time course of extracellular levels of amino acids within the...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199605000-00008
更新日期:1996-05-01 00:00:00
abstract:BACKGROUND:Necrotising enterocolitis (NEC) and late-onset sepsis (LOS) are the leading causes of death among preterm infants in the developed world. This study aimed to explore the serum proteome and metabolome longitudinally in preterm infants with NEC or LOS, matched to controls. METHODS:Nineteen patients (10 cases,...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2015.235
更新日期:2016-03-01 00:00:00
abstract::The diagnosis of transient renal tubular acidosis was made in a 16 months old boy. Bicarbonate titration studies revealed that the acidification defect consisted of an association of proximal and distal tubular acidosis. The effect of experimentally induced potassium depletion revealed that hyperkalemia contributed to...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-197910000-00020
更新日期:1979-10-01 00:00:00
abstract::Several lines of evidence suggest that formula with protein content of 3.0 g/100 kcal does not fully meet the protein needs of very-low-birth weight infants. Our purpose was to compare nitrogen balance, metabolic status and growth in infants fed a standard (3.0 g/100 kcal; RegPro) and high (3.6 g/100 kcal; HiPro) prot...
journal_title:Pediatric research
pub_type: 杂志文章,随机对照试验
doi:10.1203/01.pdr.0000196376.99101.34
更新日期:2006-02-01 00:00:00
abstract::The global burden of kidney disease is increasing, and several etiologies first begin in childhood. Risk factors for pediatric kidney disease are common in Africa, but data regarding its prevalence are lacking. We completed a systematic review of community-based studies describing the prevalence of proteinuria, hematu...
journal_title:Pediatric research
pub_type: 杂志文章,评审
doi:10.1038/pr.2014.189
更新日期:2015-02-01 00:00:00
abstract::Myocardial oxygen demand may be increased in chronically hypoxemic lambs because of their increased heart rate. Therefore, we determined whether left ventricular (LV) oxygen supply, oxygen uptake and oxygen demand were proportionally increased in 6-wk-old lambs, after 4 wk of hypoxemia (n = 15), as compared with contr...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199310000-00017
更新日期:1993-10-01 00:00:00
abstract::Previous studies in adults have shown that chronic pulmonary hypertension is associated with decreased endothelial nitric oxide synthase (eNOS) expression in pulmonary arteries. However, the role of decreased eNOS expression in persistent pulmonary hypertension of the newborn (PPHN) is unknown. We investigated the hyp...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199809000-00012
更新日期:1998-09-01 00:00:00
abstract::We evaluated the hypothesis that increased endogenous opioid activity mediates part or all of the left ventricular contractile and pump dysfunction previously demonstrated in HCl-induced metabolic acidemia. Eighteen Western newborn lambs were catheterized and instrumented; pacing wires were sutured to the right atrial...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198806000-00023
更新日期:1988-06-01 00:00:00
abstract::125I-Tyr insulin (125I-Tyr Ins) was injected into the vitelline vein of rat fetuses in utero after 17, 19, or 21 days of gestation. Three min later, the weight and radioactivity of various organs and of the remaining carcass were measured. A radioactivity concentration index (RCI) was calculated by dividing the specif...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198109000-00014
更新日期:1981-09-01 00:00:00
abstract::We have performed clinical, in vitro biochemical, and genetic studies of a patient with severe insulin resistance, considerable growth restriction, and Rabson-Mendenhall syndrome (patient RM-3). The blood IGF-I level was undetectable in this patient, although the GH level was moderately decreased. During the postprand...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199707000-00012
更新日期:1997-07-01 00:00:00