Abstract:
:To study the effects of cytomegalovirus infection on T-lymphocyte subpopulations, we determined helper (Lyt 1.2) and suppressor (Lyt 2.2) T-lymphocyte subset numbers using monoclonal antibodies and measured lymphocyte responsiveness to mitogen during sublethal murine cytomegalovirus (MCMV) infection of 3-wk-old Balb/c mice. MCMV-infected mice had reduced Lyt 1.2 to Lyt 2.2 T-lymphocyte ratios on days 1, 3, 5, and 9 of infection. Alterations in T-lymphocyte subsets were accompanied by diminished lymphocyte response to concanavalin A. Lymphocyte responsiveness and Lyt 1.2 to Lyt 2.2 ratios were maximally reduced on day 5 of MCMV infection and correlated strongly with peak virus recovery from spleen, bone marrow, and peripheral blood leukocytes. These results indicate that acute MCMV infection of mice causes abnormalities in T-lymphocyte subset ratios and responsiveness to mitogen similar to the abnormalities observed in human cytomegalovirus infections. MCMV infection of mice is a useful model to study the mechanism by which cytomegalovirus infections induce altered T-lymphocyte subpopulations.
journal_name
Pediatr Resjournal_title
Pediatric researchauthors
Sell MS,Bale JF Jr,Giller RHdoi
10.1203/00006450-198506000-00016subject
Has Abstractpub_date
1985-06-01 00:00:00pages
583-7issue
6eissn
0031-3998issn
1530-0447journal_volume
19pub_type
杂志文章abstract::In order to study the neonatal microcirculation, the capillary hemodynamics in skin was investigated in 43 full-term infants 2-7 days after birth. The nailfold capillaries of the thumb were visualized by means of television microscopy and the capillary blood cell velocity (CBV) was videophotometrically quantified in 1...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198806000-00011
更新日期:1988-06-01 00:00:00
abstract::It seems quite likely that the normal process of fetal lung biochemical maturation is delayed by maternal diabetes and that abnormalities in the pulmonary surfactant system are involved. The appearance of PG in amniotic fluid and possibly in fetal lung is impaired or at least delayed. The same is possibly true for DSP...
journal_title:Pediatric research
pub_type: 杂志文章,评审
doi:10.1203/00006450-198503000-00001
更新日期:1985-03-01 00:00:00
abstract::Kawasaki disease (KD) is an acute vasculitis of young childhood predominantly affecting the coronary arteries. IgA plasma cells have been found to infiltrate vascular and nonvascular tissues in fatal acute KD. To determine whether IgA B-lymphocytes were increased in the peripheral blood of patients with KD, we perform...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-200110000-00019
更新日期:2001-10-01 00:00:00
abstract::Purified human liver arylsulfatase A on polyacrylamide gel electrophoresis at pH 4.0 is separated into two protein forms with enzymatic activity and two distinct inactive subunits. All of these components were immunologically distinguishable using different antisera preparations. In late infantile metachromatic leukod...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-197803000-00007
更新日期:1978-03-01 00:00:00
abstract::Food groups have been widely used in nutrition education but relatively few studies have employed food groups to interpret dietary intake. The 24-h dietary recalls of 534 male and 476 female adolescents, aged 10-19 yr, were analyzed using a food grouping scheme. Foods were grouped with emphasis placed on fats and carb...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198604000-00006
更新日期:1986-04-01 00:00:00
abstract::The mitochondrial trifunctional protein (TFP) is a multienzyme complex of the beta-oxidation cycle. Human TFP is an octamer composed of four alpha-subunits harboring long-chain enoyl-CoA hydratase and long-chain L-3-hydroxyacyl-CoA dehydrogenase and four beta-subunits encoding long-chain 3-ketoacyl-CoA thiolase. Mutat...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/01.PDR.0000103931.80055.06
更新日期:2004-02-01 00:00:00
abstract::Phototherapy results in the conversion of bilirubin to more water-soluble isomers. Six clinically used phototherapy lamps which differ in their emission spectra have been compared in their ability to produce configurational and structural isomers of bilirubin in vitro. For all of the lamps, the initial rate of configu...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198407000-00021
更新日期:1984-07-01 00:00:00
abstract::To study the course of regional metabolite concentrations during early brain development, we measured in vivo metabolites [N-acetyl-aspartate (NAA), choline-containing compounds, and myoinositol (M-Ino)] in the precentral area of the cerebrum by short echo-time single volume proton magnetic resonance spectroscopy and ...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199502000-00003
更新日期:1995-02-01 00:00:00
abstract:BACKGROUND:The aim was to identify susceptibility alleles for infantile hypertrophic pyloric stenosis (IHPS) in a pedigree previously linked to IHPS5 on chromosome 16q24. METHODS:We screened the positional and functional candidate gene FOXF1 by Sanger sequencing in a single affected individual. All family members for ...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2016.244
更新日期:2017-04-01 00:00:00
abstract::The length of the Y chromosome was measured in 42 black patients with trisomy 21 (47,XY,+21) and a similar number of normal individuals of American black ancestry. The length of the Y was expressed as a function of Y/F ratio and arbitrarily classified into five groups using subjectively defined criteria as follows: ve...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198209000-00012
更新日期:1982-09-01 00:00:00
abstract:BACKGROUND:Serum caffeine concentrations >20 μg/ml (100 μmol/l) in infants treated for apnea of prematurity increases TNF-α and decreases IL-10, changes that perhaps are linked to comorbidities. We hypothesize that this proinflammatory cytokine profile may be linked to differential binding of caffeine to adenosine rece...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2016.50
更新日期:2016-07-01 00:00:00
abstract::Intestinal absorption and its relationship to increased total body water was studied in seven infants with congenital heart disease receiving regular diuretics due to congestive heart failure. All infants and six age-matched healthy controls were studied for a 3-d period during which time all food intake was recorded,...
journal_title:Pediatric research
pub_type: 临床试验,杂志文章
doi:10.1203/00006450-199410000-00023
更新日期:1994-10-01 00:00:00
abstract::Topical emollient therapy may reduce the incidence of serious infections and mortality of preterm infants in developing countries. We tested whether emollient therapy reduced the burden of pathogens on skin and/or prevented bacterial translocation. Neonates <33 wk gestational age were randomized to treatment with sunf...
journal_title:Pediatric research
pub_type: 杂志文章,随机对照试验
doi:10.1203/pdr.0b013e3180459f75
更新日期:2007-05-01 00:00:00
abstract::Tolazoline is used in neonatal intensive care to treat hypoxia secondary to persistent pulmonary hypertension of the newborn. Its use is often complicated by systemic hypotension. We compared the effect of tolazoline-induced hypotension on organ blood flow, regional brain blood flow, and cerebral metabolism in hypoxic...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199008000-00007
更新日期:1990-08-01 00:00:00
abstract::Critically ill infants are treated with dexamethasone (Dx) and other glucocorticoids to reduce inflammation and to promote lung and cardiac function. The neonatal immune system is immature, so neonatal dendritic cells (DCs) might be especially sensitive to glucocorticoid-mediated immunosuppression. To test this, we co...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/01.PDR.0000157677.72136.09
更新日期:2005-07-01 00:00:00
abstract::Although the use of antenatal glucocorticoids has resulted in decreased neonatal morbidity/mortality, recent animal studies have raised concerns regarding adverse effects of these medications on postnatal cardiovascular function. We hypothesized that antenatal betamethasone (Beta) exposure alters cerebral vascular rea...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/PDR.0b013e3181edb9fa
更新日期:2010-10-01 00:00:00
abstract::During the transition at birth to air breathing, regulation of surfactant release from alveolar type II (ATII) cells is critical. Atrial natriuretic peptide (ANP) stimulates natriuretic peptide receptor-A (NPR-A) and increases intracellular cGMP. We examined the changes in ANP and NPR-A in respiratory epithelium durin...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/PDR.0b013e318163a215
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND:We examined whether increased dairy intake was associated with changes in the levels of bone-related biochemical markers in overweight/obese adolescent girls undergoing a 12-week diet and exercise intervention. METHODS:Thirty-five girls were assigned to a low dairy group (LDa; 0-2 servings/day; n = 16) or a...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/s41390-020-0834-5
更新日期:2020-12-01 00:00:00
abstract::The activity of UDP-D-xylose:proteoglycan core protein beta-D-xylosyltransferase (EC 2.4.2.26), the enzyme that catalyzes the initiation of the polysaccharide chain linkage to the core protein of proteoglycans, was measured in costal cartilage from 20 fetal sheep of 65-138 days gestation. Activity of the enzyme was es...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198512000-00003
更新日期:1985-12-01 00:00:00
abstract::Necrotizing enterocolitis (NEC) is the most common life-threatening gastrointestinal emergency encountered in the neonatal intensive care unit. Despite advances in neonatal care, NEC remains a leading cause of morbidity and mortality among premature infants. Epidemiologic studies have identified multiple factors that ...
journal_title:Pediatric research
pub_type: 杂志文章,评审
doi:10.1203/PDR.0b013e31815ed64c
更新日期:2008-02-01 00:00:00
abstract::In 1964, H. K. A. Visser and W. S. Cost were the first to suggest a defect of the terminal aldosterone (Aldo) biosynthesis in patients with hypoaldosteronism. In the last years, the molecular basis of the terminal Aldo biosynthesis has been elucidated. Aldo biosynthesis requires 11beta-hydroxylation of 11-deoxycortico...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199603000-00027
更新日期:1996-03-01 00:00:00
abstract::The present study was performed to investigate simultaneously total lung water, T(1) and T(2) relaxation times, and hyaluronan (HA) in preterm and term rabbits. Attempts were also made to establish the relationship of HA to total lung water and to T(2)-derived motionally distinct water fractions. Experiments were perf...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-200010000-00022
更新日期:2000-10-01 00:00:00
abstract::Alveolar macrophages were isolated from three cystic fibrosis patients, and the structure and function of these cells were compared to that of normal alveolar macrophages. The cystic fibrosis (CF) and normal alveolar macrophages were able to phagocytize Pseudomonas in the presence of normal serum, but cells from both ...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198005000-00003
更新日期:1980-05-01 00:00:00
abstract::Prematurity is associated with delayed postnatal activation of mitochondrial oxidative phosphorylation and impaired switch from glycolytic to oxidative metabolism. Fatty acids (FA), which represent a major energy substrate in mature muscle cells, are engaged in the postnatal activation of genes of energy metabolism an...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/01.PDR.0000054687.07095.0B
更新日期:2003-04-01 00:00:00
abstract::Groups of newborn rats were transthoracically inoculated with 1 X 10(6) type III group B streptococci/g body wt, either alone or in combination with 1.5 microgram/g body wt of type-specific antibody derived from hybridoma cell lines. Ninety-four percent of the animals who received bacteria alone died. In contrast, non...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198310000-00005
更新日期:1983-10-01 00:00:00
abstract::Epithelial hyperplasia is an early feature of the renal and biliary lesions in autosomal recessive polycystic kidney disease (ARPKD). To explore the cellular basis of this hyperplasia we isolated, cultured, and characterized biliary tract epithelium from common bile duct explants of mice with ARPKD (the BPK mouse) and...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199506000-00014
更新日期:1995-06-01 00:00:00
abstract::A 10-year longitudinal study was conducted on 16 prepubescent youngsters who had undergone successful weight reduction. Their ages ranged from 2 to 10 years when the study began. In all subjects, weight reduction proceeded only by a decrease in adipose cell size (from 0.62 +/- 0.02 to 0.46 +/- 0.02 micrograms lipid pe...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198110000-00016
更新日期:1981-10-01 00:00:00
abstract::The widespread use of phototherapy for neonatal hyperbilirubinemia has caused some concern since substances other than bilirubin may be photoactivated. The toxic properties of these photoactivated substances might prove to be more harmful to the neonatal infant than bilirubin. The purpose of the present study was to i...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-197503000-00009
更新日期:1975-03-01 00:00:00
abstract::This work examines the dynamic surface pressure-area behavior of films of unconjugated bilirubin spread from chloroform solution at 22 degrees C on 0.15 M NaCl and buffered phosphate subphases. Film behavior is examined at pH 5.5, 7.4 and 8.0. The interactions of bilirubin in mixed films with dipalmitoyl phosphatidylc...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198202000-00011
更新日期:1982-02-01 00:00:00
abstract:BACKGROUND:Extremely preterm birth is associated with subsequent behavioral problems. We hypothesized that perinatal systemic inflammation, a risk factor for cerebral white matter injury and cognitive impairment, is associated with behavior problems observed at 2 y. METHODS:In a cohort of 600 children born before 28 w...
journal_title:Pediatric research
pub_type: 杂志文章,多中心研究
doi:10.1038/pr.2014.41
更新日期:2014-06-01 00:00:00