Abstract:
:The effects on the conceptus of persistently decreased maternal plasma amino acid concentrations were studied in pregnant rats by the infusion of glucagon (0.21 mg/day) to the mother from day 14 to 20 of gestation with a subcutaneous, osmotically driven minipump. Controls received diluent. The experimental animals either had normal caloric intake and weight gain, or diminished caloric intake with no weight gain. Both experimental groups exhibited a decrease in plasma total amino acid concentration of approximately 50%. Maternal plasma glucose and insulin concentrations were unaffected except for slight decreases in the low weight gain group. At cesarean section on day 20, fetal weight was unaffected in the normal weight gain group, while the low weight gain animals exhibited intrauterine growth retardation. Fetal plasma glucose and insulin concentrations were unaffected. Despite the marked decrease in maternal plasma total amino acid concentration, fetal plasma total amino acid concentration was unaffected. Individual plasma amino acid concentrations in the normal weight gain mothers and fetuses revealed a spectrum of changes. Some maternal amino acids were decreased by more than 60% (alpha-aminobutyric acid, asparagine, threonine, glutamine, alanine) while others were unaffected (tyrosine, tryptophan, phenylalanine, histidine). In general, amino acids that were decreased in the mother exhibited no change or a lesser decrease in fetal plasma concentration, while those that were unaffected in the mothers showed increased fetal concentrations. Fetuses from the low weight gain mothers had plasma amino acid profiles that were similar to those of the normal weight gain mothers.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Pediatr Resjournal_title
Pediatric researchauthors
Domenech M,Gruppuso PA,Nishino VT,Susa JB,Schwartz Rdoi
10.1203/00006450-198611000-00002subject
Has Abstractpub_date
1986-11-01 00:00:00pages
1071-6issue
11eissn
0031-3998issn
1530-0447journal_volume
20pub_type
杂志文章abstract:INTRODUCTION:To examine the immune-modulatory effects of probiotics during early infancy, Bifidobacterium breve M-16V (B. breve) was administered to rat pups during the newborn or weaning period, and the expression of inflammatory genes was investigated using a cDNA microarray and real-time PCR. RESULTS:After B. breve...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2011.11
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:Maternal exposure to pesticides during pregnancy may cause oxidative hemolysis leading to neonatal hyperbilirubinemia. This investigation examined for associations between maternal use of pesticides or repellents during pregnancy and neonatal hyperbilirubinemia requiring phototherapy. METHODS:We used the da...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/s41390-020-1100-6
更新日期:2020-08-05 00:00:00
abstract::Angiotensin II-forming chymase is expressed in the pulmonary arteries of the monocrotaline-induced pulmonary hypertensive rats, but its actual role is unclear. We studied chymase-dependent angiotensin II formation in the pulmonary arteries of the monocrotaline-induced pulmonary hypertensive rats and observed the effec...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/01.pdr.0000219431.45075.d9
更新日期:2006-07-01 00:00:00
abstract::Programmed proliferative degeneration of the human fetal ductus arteriosus (DA) preceding definite postnatal closure has a large developmental variability and is controlled by several signaling pathways. Among these vascular endothelial growth factor (VEGF) and its receptors (VEGF-Rs) play an important role. Until now...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/PDR.0b013e318180a375
更新日期:2008-10-01 00:00:00
abstract::The purpose of this study was to begin to examine the influence of inhaled NO on O2 toxicity. The survival of Sprague-Dawley rats exposed to >95% O2, >95% O2 + 10 ppm NO, >95% O2 + 100 ppm NO, and >95% O2 + 3 ppm NO2 was determined. Survival at 120 h was 2/24 in >95% O2, 2/12 in >95% O2 + 10 ppm NO, and 1/12 in >95% O...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199806000-00003
更新日期:1998-06-01 00:00:00
abstract::Vagal responsivity to orogastric stimulation is necessary for gastrointestinal function and may reflect autonomic regulation. Our study evaluated vagal responsivity during gavage feeding as an index of preterm clinical status. Vagal and behavioral responsivity of 26 preterm infants during gavage feeding was measured. ...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199103000-00003
更新日期:1991-03-01 00:00:00
abstract::Bacterial sepsis is a relatively common problem in the neonatal period, particularly among prematurely delivered infants. The newborn rat has been widely used as a model for sepsis neonatorum, and in that model incomplete development of the neutrophil system has been postulated to be an important factor predisposing n...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198407000-00006
更新日期:1984-07-01 00:00:00
abstract:BACKGROUND:Adolescents born preterm have altered hypothalamic-pituitary-adrenal axis function with a blunted cortisol stress response, however, the influences of intrauterine growth restriction and race are unclear. METHODS:We measured salivary cortisol before and 20 min after a maximal-exercise stress test and calcul...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/s41390-019-0682-3
更新日期:2020-05-01 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::Previous studies have shown that early life stress in the form of intermittent maternal separation (MS) predisposes adult rats to develop stress-induced intestinal mucosal dysfunction and visceral hypersensitivity. However, the mechanism involved in the functional abnormalities is unclear. Our aim was to study immatur...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/01.pdr.0000190577.62426.45
更新日期:2006-01-01 00:00:00
abstract::We studied the effects of a diet that was low in fat, high in carbohydrate (CHO) on milk lipid composition and de novo endogenous fatty acid synthesis by the mammary gland in five lactating women. The women consumed either a low fat (LF) (5% fat, 80% CHO) diet or a high fat (HF) (40% fat, 45% CHO) diet. Fat synthesis ...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198901000-00015
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND:Secreted frizzled-related protein 5 (SFRP5) is an adipokine protecting against obesity-related insulin resistance and diabetes. SFRP5 binds to wingless type mouse mammary tumor virus (MMTV) integration site family member 5A (WNT5A) to improve insulin sensitivity. We performed the first study of SFRP5 and WNT...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2014.29
更新日期:2014-06-01 00:00:00
abstract::A comparative study of two smallpox vaccines, standard calf lymph vaccine, and an attenuated vaccine, CVI-78, was performed in 95 children. Primary vaccination with CVI-78 resulted in a more attenuated response than primary vaccination with standard vaccine. Sixty-one percent of those vaccinated with CVI-78 and 96 per...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-197508000-00002
更新日期:1975-08-01 00:00:00
abstract::The incidence of allergic diseases has increased, and a relation between allergy and dietary fatty acids has been proposed. Modulation of the maternal immune function during pregnancy may have an impact on future clinical outcomes in the child. The aim of this study was to determine the effects of omega (omega)-3 long...
journal_title:Pediatric research
pub_type: 杂志文章,随机对照试验
doi:10.1203/PDR.0b013e3181aabd1c
更新日期:2009-08-01 00:00:00
abstract::Aspiration is a major cause of lung disease in infants and young children. As the symptoms and signs of aspiration are not specific, the diagnosis is delayed due to a low index of suspicion and low sensitivity and specificity of the available diagnostic tests. In the present study, we evaluated the utility of microsph...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/01.pdr.0000176910.62067.a0
更新日期:2005-09-01 00:00:00
abstract::Microangiopathy, one of the most important complications of diabetes mellitus in humans, is associated with increased angiogenic response and proliferative lesions in various organs. Angiogenin, a polypeptide with a molecular size of 14 kD, is a potent inducer of vascular growth. This study aimed at investigating whet...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199806000-00013
更新日期:1998-06-01 00:00:00
abstract::We used quin2, a high affinity fluorescent calcium indicator to measure free cytosolic Ca++ in neutrophils isolated from fresh heparinized blood of 13 cystic fibrosis (CF) patients (age range 6-32 yr) and 11 healthy individuals (age range 25-41 yr) as controls. The mean value of free cytosolic Ca++ for CF patients was...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198519040-00006
更新日期:1985-04-01 00:00:00
abstract::Young adult macrosomic offspring of streptozotocin-induced mildly hyperglycemic rats exhibit accelerated growth through the first 10 wk of age. At 10 wk, oral glucose loading resulted in elevated plasma insulin and glucose concentrations compared to controls. To assess the mechanism of the abnormal glucose tolerance i...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199107000-00008
更新日期:1991-07-01 00:00:00
abstract::This study was undertaken to determine whether simultaneous activation of clotting, fibrinolysis, and kinin-kallikrein is associated with disease severity in preterm infants with neonatal respiratory distress syndrome (RDS), during the first 5 d of life. In the infants with severe RDS, we found activation of clotting,...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199701000-00019
更新日期:1997-01-01 00:00:00
abstract::The specific activities of four folate enzymes have been measured in livers from preterm infants (Group 1), full-term infants (Group 2), and from control subjects (Group 3). The four enzymes studied were methylene tetrahydrofolate reductase (EC 1.1.1.68), methionine synthetase (EC 2.1.1.13), methylenetetrahydrofolate ...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198208000-00008
更新日期:1982-08-01 00:00:00
abstract::Synchronized atrial contraction may be much more important in the newborn, who has a faster heart rate and a less compliant ventricle, than in the adult. We therefore investigated the extent by which synchronized atrioventricular contraction contributes to cardiac output and cardiac work in a neonatal circulation, and...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-199803000-00004
更新日期:1998-03-01 00:00:00
abstract:BACKGROUND:Abnormal PCO2 is common in infants with hypoxic ischemic encephalopathy (HIE). The objective was to determine whether hypocapnia was independently associated with unfavorable outcome (death or severe neurodevelopmental disability at 18 mo) in infants with moderate-to-severe HIE. METHODS:This was a post hoc ...
journal_title:Pediatric research
pub_type: 杂志文章,随机对照试验
doi:10.1038/pr.2016.62
更新日期:2016-08-01 00:00:00
abstract::Premature newborns are highly susceptible to severe bacterial infections. This is partially due to their immature innate immune system, characterized by decreased neutrophil and monocyte activity as well as by reduced concentrations of complement factors. However, additional mechanisms might be important for innate im...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/01.PDR.0000163397.53466.0F
更新日期:2005-07-01 00:00:00
abstract::Keratinocyte growth factor (KGF, or fibroblast growth factor 7) was previously reported to enhance the synthesis of surfactant in alveolar type II cells. We investigated the possible interactions between KGF and a glucocorticoid, dexamethasone (Dex), on surfactant protein (SP) gene expression. In cultured fetal rat ty...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/01.PDR.0000047840.77635.AE
更新日期:2003-02-01 00:00:00
abstract:BACKGROUND:Postnatal glucocorticoid therapy in the treatment of chronic lung disease benefits lung function, however it adversely affects brain development. We hypothesized that combined postnatal glucocorticoid and statin therapy diminishes adverse effects of glucocorticoids on the developing brain. METHODS:On postna...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2013.152
更新日期:2013-12-01 00:00:00
abstract::We examined the effect of inspiratory resistive loaded breathing (IRL) on the electromyographic (EMG) activity of the costal and crural diaphragm in nine anesthetized spontaneously breathing piglets (age 10-23 days, weight 2.8-4.4 kg). Bipolar wire electrodes were inserted into the anterior paratendinous costal diaphr...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1203/00006450-198701000-00007
更新日期:1987-01-01 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:BACKGROUND:Neonatal encephalopathy (NE) carries high risk for neurodevelopmental impairments. Therapeutic hypothermia (TH) reduces this risk, particularly for moderate encephalopathy (ME). Nevertheless, these infants often have subtle functional deficits, including abnormal memory function. Detection of deficits at the...
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/pr.2016.169
更新日期:2016-12-01 00:00:00
abstract:BACKGROUND:Maternal thyroid deficiency can increase Rho-kinase procontractile influence in arteries of 2-week-old progeny. Here we hypothesized that augmented role of Rho-kinase persists in arteries from adult progeny of hypothyroid rats. METHODS:Dams were treated with 6-propyl-2-thiouracil (PTU) in drinking water (0....
journal_title:Pediatric research
pub_type: 杂志文章
doi:10.1038/s41390-018-0029-5
更新日期:2018-07-01 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