Astrocyte end-feet in germinal matrix, cerebral cortex, and white matter in developing infants.

Abstract:

:Astrocyte end-feet ensheathe blood vessels in the brain and are believed to provide structural integrity to the cerebral vasculature. We sought to determine in developing infants whether the coverage of blood vessels by astrocyte end-feet is decreased in germinal matrix (GM) compared with cerebral cortex and white matter (WM), which may cause fragility of the GM vasculature. Therefore, we evaluated the perivascular coverage by astrocyte end-feet in these areas. We double-labeled the brain sections with astroglial markers [glial fibrillary acidic protein (GFAP), aquaporin-4 (AQP4), and S-100beta] and a vascular marker, laminin. Perivascular coverage by GFAP+ astrocyte end-feet increased consistently as a function of gestational age (GA) in cortex and WM from 19 to 40 wk. Compared with GFAP, AQP4+ astrocyte end-feet developed at an earlier GA, ensheathing about 63% of blood vessels for 23-40 wk in cortex, WM, and GM. Coverage by GFAP+ perivascular end-feet was decreased in GM compared with cortex and WM from 23 to 34 wk. There was no difference in the coverage by AQP4+ end-feet among the three areas in these infants. The expression of AQP4, a water channel molecule, in the astrocyte end-feet was not significantly different between premature and mature infants, suggesting similar risk of brain edema in preterm and term infants in pathologic conditions. More importantly, the lesser degree of GFAP expression in astrocyte end-feet of GM compared with cortex and WM may reflect a cytoskeletal structural difference that contributes to the fragility of GM vasculature and propensity to hemorrhage.

journal_name

Pediatr Res

journal_title

Pediatric research

authors

El-Khoury N,Braun A,Hu F,Pandey M,Nedergaard M,Lagamma EF,Ballabh P

doi

10.1203/01.pdr.0000214975.85311.9c

subject

Has Abstract

pub_date

2006-05-01 00:00:00

pages

673-9

issue

5

eissn

0031-3998

issn

1530-0447

pii

59/5/673

journal_volume

59

pub_type

杂志文章
  • Relationship between T-cell HLA-DR expression and intravenous immunoglobulin treatment response in Kawasaki disease.

    abstract:BACKGROUND:Kawasaki disease (KD) is an acute febrile illness associated with the development of vasculitis. Administration of intravenous immunoglobulin (IVIG) is the standard treatment for KD. However, IVIG treatment is not effective in approximately 15% of children with KD. Some reports have presented evidence of imm...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1038/pr.2015.12

    authors: Wakiguchi H,Hasegawa S,Suzuki Y,Kudo K,Ichiyama T

    更新日期:2015-04-01 00:00:00

  • Cerebral blood flow and edema in perinatal hypoxic-ischemic brain damage.

    abstract::The relationship between cerebral blood flow (CBF) and the evolution of brain edema was investigated in an experimental model of perinatal hypoxic-ischemic brain damage. Seven-d postnatal rats were subjected to unilateral common carotid artery ligation followed by 3 h of hypoxia with 8% oxygen at 37 degrees C. This in...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199005000-00007

    authors: Mujsce DJ,Christensen MA,Vannucci RC

    更新日期:1990-05-01 00:00:00

  • Diagnostics for neonatal sepsis: current approaches and future directions.

    abstract::Progress has been made in the reduction of morbidity and mortality from neonatal sepsis. However, diagnosis continues to rely primarily on conventional microbiologic techniques, which can be inaccurate. The objective of this review is to provide the clinician with an overview of the current information available on di...

    journal_title:Pediatric research

    pub_type: 杂志文章,评审

    doi:10.1038/pr.2017.134

    authors: Iroh Tam PY,Bendel CM

    更新日期:2017-10-01 00:00:00

  • Predicting pubertal development by infantile and childhood height, BMI, and adiposity rebound.

    abstract:BACKGROUND:Despite substantial heritability in pubertal development, children differ in maturational tempo. HYPOTHESES:(i) puberty and its duration are influenced by early changes in height and adiposity. (ii) Adiposity rebound (AR) is a marker for pubertal tempo. METHODS:We utilized published prospective data from 6...

    journal_title:Pediatric research

    pub_type: 杂志文章,多中心研究

    doi:10.1038/pr.2015.129

    authors: German A,Shmoish M,Hochberg Z

    更新日期:2015-10-01 00:00:00

  • Prolactin levels in umbilical cord serum and its relation to fetal adrenal activity in newborns of women with pregnancy-induced hypertension.

    abstract::The effect of hypertension in pregnant women on fetal maturation is an issue of considerable importance. Because of a possible role of prolactin in fetal adrenal steroidogenesis and in fetal lung maturation, we have investigated the relationship between hypertension in pregnant women and levels of prolactin and dehydr...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198609000-00014

    authors: Parker CR Jr,Hankins GD,Carr BR,Gant NF,MacDonald PC,Porter JC

    更新日期:1986-09-01 00:00:00

  • Hypothermia for 24 hours after asphyxic cardiac arrest in piglets provides striatal neuroprotection that is sustained 10 days after rewarming.

    abstract::The neuroprotective effect of hypothermia instituted after resuscitation from asphyxic cardiac arrest has not been studied in immature brain, particularly in a large animal model with recovery periods greater than 4 d. Moreover, protection from severe hypoxia seen with 3 h of hypothermia was reported to be lost when h...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/01.PDR.0000072783.22373.FF

    authors: Agnew DM,Koehler RC,Guerguerian AM,Shaffner DH,Traystman RJ,Martin LJ,Ichord RN

    更新日期:2003-08-01 00:00:00

  • Herpes simplex virus-stimulated gamma-interferon production by newborn mononuclear cells.

    abstract::Blood mononuclear cells from newborns and from adults, immune or nonimmune to herpes simplex virus, were cultured with IL 2 and herpes simplex virus and the amount of gamma-interferon in the supernatant measured after 3 days. The newborn and nonimmune adult cells made equivalent trace amounts of gamma-interferon in cu...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198605000-00004

    authors: Hayward AR,Herberger M,Saunders D

    更新日期:1986-05-01 00:00:00

  • Postnatal infection is associated with widespread abnormalities of brain development in premature newborns.

    abstract:INTRODUCTION:Infection is a risk factor for adverse neurodevelopmental outcome in preterm newborns. Our objective was to characterize the association of postnatal infection with adverse microstructural and metabolic brain development in premature newborns. RESULTS:In 34/117 newborns studied, clinical signs were accomp...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1038/pr.2011.40

    authors: Chau V,Brant R,Poskitt KJ,Tam EW,Synnes A,Miller SP

    更新日期:2012-03-01 00:00:00

  • Oxygen delivery, oxygen consumption, and metabolic acidosis during group B streptococcal sepsis in piglets.

    abstract::The development of metabolic acidosis during neonatal sepsis with group B streptococci (GBS) has been attributed to progressive tissue ischemia resulting from reduced oxygen delivery (QO2). Using an animal model of GBS disease, we attempted to test this hypothesis by comparing the development of metabolic acidosis in ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198711000-00006

    authors: Meadow WL,Rudinsky BF,Strates E,Komar KJ

    更新日期:1987-11-01 00:00:00

  • Changes in 5alpha-pregnane steroids and neurosteroidogenic enzyme expression in fetal sheep with umbilicoplacental embolization.

    abstract::Pregnane steroids have sedative and neuroprotective effects on the brain, due to interactions with the steroid-binding site of the GABAA receptor. In the adult brain, synthesis of the pregnane steroids is increased in response to stress. Therefore, we have used umbilicoplacental embolization to mimic chronic placental...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/01.PDR.0000088066.47755.36

    authors: Nguyen PN,Billiards SS,Walker DW,Hirst JJ

    更新日期:2003-12-01 00:00:00

  • Prostanoid biosynthesis by blood monocytes of children with hyperprostaglandin E syndrome.

    abstract::Hyperprostaglandin E syndrome (HPS), the prenatal variant of Bartter's syndrome, is characterized by a marked and selective stimulation of prostaglandin E (PGE2) synthesis. In the study group HPS patients showed increased urinary levels of PGE2, an index of renal, and of 11 alpha-hydroxy-9,15-dioxo-2,3,4,5,20-pentanor...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199708000-00019

    authors: Nüsing RM,Schaub TP,Klein T,Schweer H,Seyberth HW

    更新日期:1997-08-01 00:00:00

  • Interactions of soybean lectin, soyasaponins, and glycinin with rabbit jejunal mucosa in vitro.

    abstract::Mucosal samples from rabbit jejunum were incubated (30 min, 25 degrees C) with (125I)glycinin in the presence of buffer, soybean lectin (50 micrograms/ml) soyasaponins (1 mg/ml), or both lectin and saponins. The mucosal uptake of (125I)glycinin was negligible with buffer, and increased progressively with additions of ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198209000-00005

    authors: Alvarez JR,Torres-Pinedo R

    更新日期:1982-09-01 00:00:00

  • Intellectual, neurologic, and neuropsychologic outcome in untreated subjects with nonphenylketonuria hyperphenylalaninemia. German Collaborative Study on Phenylketonuria.

    abstract::Based on the serum phenylalanine levels under free diet patients with hyperphenylalaninemia are classified as "classical" (>1200 micromol/L), "mild" (600-1200 micromol/L), or "non-phenylketonuria (PKU)-hyperphenylalaninemia" (<600 micromol/L). Recent studies revealed intellectual, neurologic, and neuropsychologic defi...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199709000-00020

    authors: Weglage J,Ullrich K,Pietsch M,Fünders B,Güttler F,Harms E

    更新日期:1997-09-01 00:00:00

  • Hyperoxia decreases matrix metalloproteinase-9 and increases tissue inhibitor of matrix metalloproteinase-1 protein in the newborn rat lung: association with arrested alveolarization.

    abstract::Matrix metalloproteinases (MMP) are likely effectors of normal lung development, especially branching morphogenesis, angiogenesis, and extracellular matrix degradation. Because hyperoxia exposure (>95% O(2)) from d 4 to 14 in newborn rat pups leads to arrest of alveolarization and mimics newborn chronic lung disease, ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/01.PDR.0000130658.45564.1F

    authors: Hosford GE,Fang X,Olson DM

    更新日期:2004-07-01 00:00:00

  • Gender-specific relationship between prenatal exposure to phthalates and intrauterine growth restriction.

    abstract:BACKGROUND:No study has examined the association between prenatal phthalate exposure and intrauterine growth retardation (IUGR). This study aimed to investigate whether prenatal exposure to phthalates was associated with increased risk of IUGR. METHODS:A total of 126 mother-newborn pairs, including 42 IUGR cases and 8...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1038/pr.2014.103

    authors: Zhao Y,Chen L,Li LX,Xie CM,Li D,Shi HJ,Zhang YH

    更新日期:2014-10-01 00:00:00

  • The effects of intra-uterine growth retardation and postnatal undernutrition on onset of puberty in male and female rats.

    abstract::The nutritional status, prenatally and early postnatally, plays a critical role in postnatal growth and development. Early malnutrition may change the original programming of organs, especially those in developmental phases, which can result in long-term changes in metabolism. The association between a low birth weigh...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-200012000-00017

    authors: Engelbregt MJ,Houdijk ME,Popp-Snijders C,Delemarre-van de Waal HA

    更新日期:2000-12-01 00:00:00

  • A micromethod for the analysis of cryoglobulins via laser nephelometry: evaluation and comparison to C1q binding activity in autoimmune diseases in pediatrics.

    abstract::Quantitative determinations of cryoglobulins (IgG, IgA, IgM, and C3) were performed by a laser nephelometry microtechnique on 250 serum samples from a group of pediatric patients suspected of having immune complex-mediated disorders. Approximately 50% of these samples were cryoglobulin positive. Patients with cryoglob...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198007000-00003

    authors: Yang LC,Norman ME,Doughty RA

    更新日期:1980-07-01 00:00:00

  • The relation of severe malnutrition in infancy to the intelligence of school children with differing life histories.

    abstract::The IQ's of Jamaican boys aged 6-10 were associated significantly with the presence or absence of severe malnutrition in infancy, with height at time of IQ testing, and with a measure of the boys' social background. A multiple correlation coefficient of 0.674 was obtained between IQ and the three factors. Social backg...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-197601000-00011

    authors: Richardson SA

    更新日期:1976-01-01 00:00:00

  • Angiotensin II type 1 receptor A1166C polymorphism and prophylactic indomethacin treatment induced ductus arteriosus closure in very low birth weight neonates.

    abstract::Altered pulmonary vascular resistance might be a factor for delayed closure of the ductus arteriosus (DA) in preterm infants. Angiotensin II plays a central role in the elevation of pulmonary vascular resistance. Angiotensin II exerts its vasoconstrictor effect on the angiotensin II type 1 receptor (AT1R). Homozygous ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/01.PDR.0000088016.67117.39

    authors: Treszl A,Szabo M,Dunai G,Nobilis A,Kocsis I,Machay T,Tulassay T,Vasarhelyi B

    更新日期:2003-11-01 00:00:00

  • Identification of cellular processes that are rapidly modulated in response to tracheal occlusion within mice lungs.

    abstract::Lung development progresses through a process reliant on mechanical cell stretch. However, this process is not well defined at the molecular level. Our goal was to globally analyze the transcriptome of fetal mouse lungs following short periods of tracheal occlusion (TO) to identify cellular processes that are rapidly ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/PDR.0b013e31815eba47

    authors: Seaborn T,St-Amand J,Cloutier M,Tremblay MG,Maltais F,Dinel S,Moulin V,Khan PA,Piedboeuf B

    更新日期:2008-02-01 00:00:00

  • Monocyte chemoattractant protein-1 and its receptor CCR-2 in piglet lungs exposed to inhaled nitric oxide and hyperoxia.

    abstract::Monocyte chemoattractant protein-1 (MCP-1), acting through its C-C chemokine receptor 2 (CCR-2), has important roles in inflammation, angiogenesis, and wound repair. The individual and combined effects of inhaled nitric oxide (NO) and hyperoxia on lung MCP-1 and CCR-2 in relation to lung leukocyte dynamics are unknown...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-200111000-00017

    authors: Ekekezie II,Thibeault DW,Garola RE,Truog WE

    更新日期:2001-11-01 00:00:00

  • A functional ATG16L1 (T300A) variant is associated with necrotizing enterocolitis in premature infants.

    abstract:BACKGROUND:The genetic basis of dysfunctional immune responses in necrotizing enterocolitis (NEC) remains unknown. We hypothesized that variants in nucleotide binding and oligomerization domain (NOD)-like receptors (NLRs) and autophagy (ATG) genes modulate vulnerability to NEC. METHODS:We genotyped a multi-center coho...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1038/pr.2016.260

    authors: Sampath V,Bhandari V,Berger J,Merchant D,Zhang L,Ladd M,Menden H,Garland J,Ambalavanan N,Mulrooney N,Quasney M,Dagle J,Lavoie PM,Simpson P,Dahmer M

    更新日期:2017-04-01 00:00:00

  • High-density lipoprotein subclass distribution in premature newborns before and after the onset of enteral feeding.

    abstract::Changes in high-density lipoprotein (HDL) subclass distribution were evaluated in a group of premature infants during the early postnatal period to ascertain whether enteral feeding brought about a rapid shift from neonatal to adult-like distributions. All infants were fed a combination of breast milk and formula. Cor...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198806000-00001

    authors: Genzel-Boroviczény O,D'Harlingue AE,Kao LC,Scott C,Forte TM

    更新日期:1988-06-01 00:00:00

  • Of the bugs that shape us: maternal obesity, the gut microbiome, and long-term disease risk.

    abstract::Chronic disease risk is inextricably linked to our early-life environment, where maternal, fetal, and childhood factors predict disease risk later in life. Currently, maternal obesity is a key predictor of childhood obesity and metabolic complications in adulthood. Although the mechanisms are unclear, new and emerging...

    journal_title:Pediatric research

    pub_type: 杂志文章,评审

    doi:10.1038/pr.2014.169

    authors: Gohir W,Ratcliffe EM,Sloboda DM

    更新日期:2015-01-01 00:00:00

  • The dietary treatment of children with type I glycogen storage disease with slow release carbohydrate.

    abstract::The effect of ingestion of uncooked cornstarch (2 g/kg body weight) in water, uncooked starch (1 g/kg) added to a meal, and glucose (2 g/kg) in water, was studied in eight patients with type IA glycogen storage disease (GSD) and one patient with type IB GSD. Blood glucose concentrations were determined at 30-min inter...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198409000-00015

    authors: Smit GP,Berger R,Potasnick R,Moses SW,Fernandes J

    更新日期:1984-09-01 00:00:00

  • Electronic health record-based predictive models for acute kidney injury screening in pediatric inpatients.

    abstract::BackgroundAcute kidney injury (AKI) is common in pediatric inpatients and is associated with increased morbidity, mortality, and length of stay. Its early identification can reduce severity.MethodsTo create and validate an electronic health record (EHR)-based AKI screening tool, we generated temporally distinct develo...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1038/pr.2017.116

    authors: Wang L,McGregor TL,Jones DP,Bridges BC,Fleming GM,Shirey-Rice J,McLemore MF,Chen L,Weitkamp A,Byrne DW,Van Driest SL

    更新日期:2017-09-01 00:00:00

  • Cardiovascular risk factors in parents of short children born small for gestational age.

    abstract::Small for gestational age (SGA) children have a higher prevalence of cardiovascular risk factors at a young age. It is not known whether this increased risk is caused by their size at birth, a familial predisposition for cardiovascular disease or smallness at birth or a combination of these factors. The cardiovascular...

    journal_title:Pediatric research

    pub_type: 杂志文章,多中心研究

    doi:10.1203/PDR.0b013e3181732922

    authors: De Kort SW,Van Dijk M,Willemsen RH,Ester WA,Viet L,De Rijke YB,Hokken-Koelega AC

    更新日期:2008-07-01 00:00:00

  • Real-time detection, classification, and quantification of apneic episodes using miniature surface motion sensors in rats.

    abstract:BACKGROUND:Real-time detection and classification of apneic episodes remain significant challenges. This study explores the applicability of a novel method of monitoring the respiratory effort and dynamics for rapid detection and classification of apneic episodes. METHODS:Obstructive apnea (OA) and hypopnea/central ap...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1038/pr.2015.69

    authors: Waisman D,Lev-Tov L,Levy C,Faingersh A,Colman Klotzman I,Bibi H,Rotschild A,Landesberg A

    更新日期:2015-07-01 00:00:00

  • Cellular therapy for traumatic neurological injury.

    abstract::Neurological injury is the primary lethal mechanism of injury in children, and the primary etiology of long-term disability after trauma. Laboratories and clinical/translational teams have sought to develop stem/progenitor cell therapies to improve recovery in a clinical setting in which there is no significant repara...

    journal_title:Pediatric research

    pub_type: 杂志文章,评审

    doi:10.1038/pr.2017.253

    authors: Cox CS Jr

    更新日期:2018-01-01 00:00:00

  • The RNA-binding protein RBM3 is required for cell proliferation and protects against serum deprivation-induced cell death.

    abstract::Hypoxia and other adverse conditions are commonly encountered by rapidly growing cells. The RNA-binding protein RBM3 (RNA-binding motif protein 3), which is transcriptionally induced by low temperature and hypoxia, has recently been implicated in survival of colon cancer cells by mechanisms involving cyclooxygenase-2 ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/PDR.0b013e3181c13326

    authors: Wellmann S,Truss M,Bruder E,Tornillo L,Zelmer A,Seeger K,Bührer C

    更新日期:2010-01-01 00:00:00