A piglet survival model of posthypoxic encephalopathy.

Abstract:

:The aim of this study was to produce a neonatal piglet model which, avoiding vessel ligation, exposed the whole animal to hypoxia and produced dose-dependent clinical encephalopathy and neuropathologic damage similar to that seen after birth asphyxia. Twenty-three piglets were halothane-anesthetized. Hypoxia was induced in 19 piglets by reducing the fractional concentration of inspired oxygen (FiO2) to the maximum concentration at which the EEG amplitude was below 7 microV (low amplitude) for 17-55 min. There were transient increases in Fio2 to correct bradycardia and hypotension. Posthypoxia, the piglets were extubated when breathing was stable. Four were sham-treated controls. We aimed at 72-h survival; seven died prematurely due to posthypoxic complications. EEG and a videotaped itemized neurologic assessment were recorded regularly. We found that 95% of the animals showed neuropathologic damage. The duration of low amplitude EEG during the insult and the arterial pH at the end of the insult correlated with cortical/white matter damage; r = 0.75 and 0.81, respectively. Early postinsult EEG background amplitude (r = 0.86 at 3 h) and neurologic score (r = 0.79 at 8 h) correlated with neuropathology. Epileptic seizures in seven animals were always associated with severe neuropathologic damage. We conclude that EEG-controlled hypoxia and subsequent intensive care enabled the animals to survive with an encephalopathy which correlated with the cerebral hypoxic insult. The encephalopathy was clinically, electrophysiologically, and neuropathologically similar to that in the asphyxiated term infant. This model is suitable for examining mechanisms of damage and evaluation of potential protective therapies after birth asphyxia.

journal_name

Pediatr Res

journal_title

Pediatric research

authors

Thoresen M,Haaland K,Løberg EM,Whitelaw A,Apricena F,Hankø E,Steen PA

doi

10.1203/00006450-199611000-00014

subject

Has Abstract

pub_date

1996-11-01 00:00:00

pages

738-48

issue

5

eissn

0031-3998

issn

1530-0447

journal_volume

40

pub_type

杂志文章
  • The promise of a prophylactic Epstein-Barr virus vaccine.

    abstract::The worldwide burden of disease due to Epstein-Barr virus (EBV) infection is enormous. Diseases include endemic Burkitt lymphoma, infectious mononucleosis, cancers after transplantation, Hodgkin lymphoma, and nasopharyngeal carcinoma. A prophylactic EBV vaccine has the potential to significantly reduce the incidence a...

    journal_title:Pediatric research

    pub_type: 杂志文章,评审

    doi:10.1038/s41390-019-0591-5

    authors: Balfour HH Jr,Schmeling DO,Grimm-Geris JM

    更新日期:2020-01-01 00:00:00

  • Capillary blood cell velocity in full-term infants as determined in skin by videophotometric microscopy.

    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

    authors: Norman M,Herin P,Fagrell B,Zetterström R

    更新日期:1988-06-01 00:00:00

  • Surfactant protein A-producing cells in human fetal lung are good targets for recombinant adenovirus-mediated gene transfer.

    abstract::Local delivery of Escherichia coli beta-galactosidase gene (beta-gal) to surfactant protein-A (SP-A)-producing cells by a replication-defective recombinant adenovirus (AdCMV.beta-gal) was tested in human 8-12-wk-old fetal lung explants cultured in Waymouth's medium. In contrast to uninfected explants, direct addition ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199607000-00024

    authors: Messina E,Muhlhauser J,Giuliano M,Pandolfi A,Morgese G,Procopio A

    更新日期:1996-07-01 00:00:00

  • Prevention of postnatal bone demineralization in very low-birth-weight infants by individually monitored supplementation with calcium and phosphorus.

    abstract::Preterm infants are more prone to bone mineral deficiency the lower their birth weight. To achieve the intrauterine bone mineral accretion rate postnatally, 74 low-birth-weight infants (median birth weight, 980 g; range 430-1.580 g) were each supplemented enterally and/or parenterally with calcium and/or phosphorus in...

    journal_title:Pediatric research

    pub_type: 临床试验,杂志文章

    doi:10.1203/00006450-199401000-00027

    authors: Pohlandt F

    更新日期:1994-01-01 00:00:00

  • Prognostic significance of amplitude-integrated EEG during the first 72 hours after birth in severely asphyxiated neonates.

    abstract::Amplitude-integrated EEG (aEEG) is used to select patients for neuroprotective therapy after perinatal asphyxia because of its prognostic accuracy within several hours after birth. We aimed to determine the natural course of aEEG patterns during the first 72 h of life, in relation to neurologic outcome, in a group of ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/01.pdr.0000127019.52562.8c

    authors: ter Horst HJ,Sommer C,Bergman KA,Fock JM,van Weerden TW,Bos AF

    更新日期:2004-06-01 00:00:00

  • Enhanced uptake of taurine by basolateral plasma membrane vesicles isolated from developing rat liver.

    abstract::Inasmuch as taurine biosynthesis is decreased during early postnatal life, an efficient mechanism for taurine uptake by the liver must be present to maintain intracellular stores of this beta-amino acid. Therefore, basolateral liver plasma vesicles prepared from 14-day and adult rats were used to examine taurine trans...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198802000-00009

    authors: Bucuvalas JC,Goodrich AL,Suchy FJ

    更新日期:1988-02-01 00:00:00

  • Human milk oligosaccharides in premature infants: absorption, excretion, and influence on the intestinal microbiota.

    abstract:BACKGROUND:Human milk oligosaccharides (HMOs) shape the intestinal microbiota in term infants. In premature infants, alterations in the intestinal microbiota (dysbiosis) are associated with risk of necrotizing enterocolitis (NEC) and sepsis, and the influence of HMOs on the microbiota is unclear. METHODS:Milk, urine, ...

    journal_title:Pediatric research

    pub_type: 临床试验,杂志文章

    doi:10.1038/pr.2015.162

    authors: Underwood MA,Gaerlan S,De Leoz ML,Dimapasoc L,Kalanetra KM,Lemay DG,German JB,Mills DA,Lebrilla CB

    更新日期:2015-12-01 00:00:00

  • Ultrasonic and jet aerosolization of phospholipids and the effects on surface activity.

    abstract::Surface active aerosols were produced from aqueous dispersions of mixed lipids (CLL), extracted from bovine lung lavage. Particle size distributions were measured as a function of humidity for two types of aerosol generators: ultrasonic and jet. Lipid dispersions before aerosolization were prepared by sonication in an...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198309000-00012

    authors: Marks LB,Notter RH,Oberdorster G,McBride JT

    更新日期:1983-09-01 00:00:00

  • Proteomic biomarkers of intra-amniotic inflammation: relationship with funisitis and early-onset sepsis in the premature neonate.

    abstract::Our goal was to determine the relationship between 4 amniotic fluid (AF) proteomic biomarkers (human neutrophil defensins 2 and 1, calgranulins C and A) characteristic of intra-amniotic inflammation, and funisitis and early-onset sepsis in premature neonates. The mass restricted (MR) score was generated from AF obtain...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/01.pdr.0000252439.48564.37

    authors: Buhimschi CS,Buhimschi IA,Abdel-Razeq S,Rosenberg VA,Thung SF,Zhao G,Wang E,Bhandari V

    更新日期:2007-03-01 00:00:00

  • Role of endogenous atrial natriuretic peptide in chronic anemia in the ovine fetus: effects of a non-peptide antagonist for atrial natriuretic peptide receptor.

    abstract::Chronic fetal anemia causes polyhydramnios and fetal hydrops and is associated with increased fetal diuresis and natriuresis. To determine the role of atrial natriuretic peptide (ANP) in the renal adaptation to chronic fetal anemia we studied the effects of HS-142-1 (HS), a specific inhibitor of the guanylate cyclase-...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199511000-00015

    authors: Silberbach M,Woods LL,Hohimer AR,Shiota T,Matsuda Y,Davis LE

    更新日期:1995-11-01 00:00:00

  • Effect of early nutritional deprivation and diet on translocation of bacteria from the gastrointestinal tract in the newborn rat.

    abstract::The gastrointestinal (GI) barrier function is immature in the preterm neonate and might thus facilitate translocation of enteric bacteria and gut-derived septicemia. Circumstantial evidence suggests that bacterial uptake from the intestine may be further enhanced by an alteration of the host nutritional status. To tes...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199603000-00007

    authors: Steinwender G,Schimpl G,Sixl B,Kerbler S,Ratschek M,Kilzer S,Hollwarth ME,Wenzl HH

    更新日期:1996-03-01 00:00:00

  • The developing gut-lung axis: postnatal growth restriction, intestinal dysbiosis, and pulmonary hypertension in a rodent model.

    abstract:BACKGROUND:Postnatal growth restriction (PNGR) in premature infants increases risk of pulmonary hypertension (PH). In a rodent model, PNGR causes PH, while combining PNGR and hyperoxia increases PH severity. We hypothesized that PNGR causes intestinal dysbiosis and that treatment with a probiotic attenuates PNGR-associ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1038/s41390-019-0578-2

    authors: Wedgwood S,Warford C,Agvatisiri SR,Thai PN,Chiamvimonvat N,Kalanetra KM,Lakshminrusimha S,Steinhorn RH,Mills DA,Underwood MA

    更新日期:2020-02-01 00:00:00

  • The effect of blue light exposure on the expression of circadian genes: bmal1 and cryptochrome 1 in peripheral blood mononuclear cells of jaundiced neonates.

    abstract::The purpose of this study was to investigate the effect of blue light phototherapy on the expression of circadian genes in peripheral blood mononuclear cells (PBMC) and plasma melatonin levels in neonates. Real-time reverse-transcriptase polymerase chain reaction (RT-PCR) was used to determine the expression of Bmal1 ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/01.pdr.0000183663.98446.05

    authors: Chen A,Du L,Xu Y,Chen L,Wu Y

    更新日期:2005-12-01 00:00:00

  • Developmental regulation of the sarcoplasmic reticulum calcium pump in the rabbit heart.

    abstract::Previous studies have demonstrated that myocardial function changes during mammalian perinatal development. The purpose of this study was to evaluate the subcellular basis underlying the slower relaxation in the developing heart by examining perinatal changes in sarcoplasmic reticulum (SR) function, and in SR Ca2+ pum...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199205000-00012

    authors: Fisher DJ,Tate CA,Phillips S

    更新日期:1992-05-01 00:00:00

  • Mesenteric blood flow velocity and its relation to circulatory adaptation during the first week of life in healthy term infants.

    abstract::We investigated early postnatal changes of the mesenteric circulation and its relationship to the systemic circulation in two groups of newborn infants. Group I (n = 10) was studied before the first feeding at 1 h and preprandially at 6 and 24 h. Group II (n = 10) was studied before the first feeding at 2 h of age and...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199409000-00011

    authors: Martinussen M,Brubakk AM,Linker DT,Vik T,Yao AC

    更新日期:1994-09-01 00:00:00

  • The central effects of thyrotropin-releasing hormone on the breathing movements and electrocortical activity of the fetal sheep.

    abstract::The fetal respiratory and electrocortical effects of thyrotropin-releasing hormone (TRH) administered into the lateral cerebral ventricles, have been investigated in chronically catheterized unanesthetized fetal sheep at 125-140 days of gestation. Stimulatory effects on fetal breathing movements were seen at doses as ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198801000-00016

    authors: Bennet L,Gluckman PD,Johnston BM

    更新日期:1988-01-01 00:00:00

  • Enhanced expression of interleukin (IL)-1 and IL-6 messenger RNA and bioactive protein after hypoxia-ischemia in neonatal rats.

    abstract::The effect of hypoxia-ischemia (HI) on IL-1, and IL-6 bioactivity in relation to expression of IL-1 alpha, IL-1 beta, and IL-6 mRNA was studied, and the neuroprotective efficacy of IL-1 receptor antagonist (IL-1ra) was evaluated in neonatal rats. HI was induced in 7-d-old rats by unilateral carotid artery ligation and...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199610000-00015

    authors: Hagberg H,Gilland E,Bona E,Hanson LA,Hahin-Zoric M,Blennow M,Holst M,McRae A,Söder O

    更新日期:1996-10-01 00:00:00

  • Developmental expression of heme oxygenase in the rat lung.

    abstract::Heme oxygenase (HO), the rate-limiting enzyme in the formation of bilirubin, is expressed in the lung and may serve as an antioxidant. This enzyme results in the formation of antioxidant bile pigments and the degradation of pro-oxidant heme. We wanted to evaluate the differences in expression of HO-1, the inducible fo...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-200301000-00010

    authors: Dennery PA,Lee CS,Ford BS,Weng YH,Yang G,Rodgers PA

    更新日期:2003-01-01 00:00:00

  • Effect of multisensory stimulation on analgesia in term neonates: a randomized controlled trial.

    abstract::Many attempts have been made to obtain safe and effective analgesia in newborns. Oral glucose-water has been found to have analgesic properties in neonates. We investigated whether other sensory stimulation added to oral glucose provided more effective analgesia than oral glucose alone. In a randomized prospective dou...

    journal_title:Pediatric research

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1203/00006450-200204000-00010

    authors: Bellieni CV,Bagnoli F,Perrone S,Nenci A,Cordelli DM,Fusi M,Ceccarelli S,Buonocore G

    更新日期:2002-04-01 00:00:00

  • Intrauterine inflammation alters cardiopulmonary but not cerebral hemodynamics during open endotracheal tube suction in preterm lambs.

    abstract:BACKGROUND:Intrauterine inflammation adversely affects cardiopulmonary, systemic, and cerebral hemodynamics in preterm neonates, but its impact on responses to endotracheal tube (ETT) suction, known to affect hemodynamics, is unknown. We hypothesized that intrauterine inflammation would alter the cardiopulmonary and ce...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1038/pr.2013.70

    authors: Galinsky R,Moss TJ,Polglase GR,Hooper SB

    更新日期:2013-07-01 00:00:00

  • Diminished phagocytosis-induced cell death (PICD) in neonatal monocytes upon infection with Escherichia coli.

    abstract::An imbalance in apoptosis or survival of immune cells plays an essential role in the pathophysiology of sepsis. Phagocytosis-induced cell death (PICD) is a common result of the pathogen-host cell interaction mediated by reactive oxygen species (ROS). Neonatal sepsis is frequently characterized by hyperinflammation. Co...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/PDR.0b013e31815b8e9f

    authors: Gille C,Leiber A,Spring B,Kempf VA,Loeffler J,Poets CF,Orlikowsky TW

    更新日期:2008-01-01 00:00:00

  • Evaluation of accumulated mucopolysaccharides in the brain of patients with mucopolysaccharidoses by (1)H-magnetic resonance spectroscopy before and after bone marrow transplantation.

    abstract::In seven patients with mucopolysaccharidoses (1 Hurler, 1 Hurler-Scheie, 4 Hunter, 1 Sly), cranial (1)H-magnetic resonance spectroscopy was performed to evaluate the accumulation of mucopolysaccharides and biochemical changes in the CNS in vivo before and after bone marrow transplantation (BMT). In two of seven patien...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-200103000-00008

    authors: Takahashi Y,Sukegawa K,Aoki M,Ito A,Suzuki K,Sakaguchi H,Watanabe M,Isogai K,Mizuno S,Hoshi H,Kuwata K,Tomatsu S,Kato S,Ito T,Kondo N,Orii T

    更新日期:2001-03-01 00:00:00

  • Induction of uncoupling protein 3 gene expression in skeletal muscle of preterm newborns.

    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

    authors: Brauner P,Kopecký P,Flachs P,Ruffer J,Sebron V,Plavka R,Vítková I,Vorlícek J,Kopecký J

    更新日期:2003-04-01 00:00:00

  • Development of blood coagulation--a fetal lamb model.

    abstract::To study the normal development of blood coagulation factor activities in a growing fetus while avoiding the effects of labor and delivery, a chronic fetal lamb model was developed in which serial blood samples from 10 fetuses were studied during the third trimester of pregnancy and 24 hr after birth. Under operating ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198107000-00014

    authors: Kisker CT,Robillard JE,Clarke WR

    更新日期:1981-07-01 00:00:00

  • The effects of altered nutritional status upon insulin-like growth factors and their binding proteins in neonatal rats.

    abstract::To investigate the role of nutrition in the regulation of IGFs during the perinatal period, 10-d-old rats were infused intravenously with various concentrations of nutrients for 24 h. Breast-fed litter mates served as controls. The effect of caloric intake on concentrations of IGF-I and IGF-II as well as IGF-binding p...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198908000-00012

    authors: Philipps A,Drakenberg K,Persson B,Sjögren B,Eklöf AC,Hall K,Sara V

    更新日期:1989-08-01 00:00:00

  • Atypical auditory event-related potentials in preterm infants during the first year of life: a possible sign of cognitive dysfunction?

    abstract::We assessed auditory event-related potentials in small-for-gestational-age (SGA; 850 +/- 258 g, 28.9 +/- 3.3 gestational wk; n = 15) and appropriate for gestational age (AGA; 1014 +/- 231 g, 26.9 +/- 1.9 gestational wk; n = 20) preterm infants and healthy term infants (n = 22). An oddball paradigm was used with a harm...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/01.PDR.0000132750.97066.B9

    authors: Fellman V,Kushnerenko E,Mikkola K,Ceponiene R,Leipala J,Naatanen R

    更新日期:2004-08-01 00:00:00

  • Gastrointestinal blood flow and O2 uptake in piglets: recovery from hypoxemia.

    abstract::Gastrointestinal (GI) blood flow, O2 transport, and O2 uptake were measured during recovery from severe hypoxemia in newborn piglets. Hypoxemia was induced by lowering the inspired O2 concentration to 0.05 for 15 min. This resulted in an 82% decrease in GI O2 uptake. Recovery measurements were obtained 5 and 65 min af...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198511000-00017

    authors: Nowicki PT,Miller RR,Hansen NB,Hayes JR

    更新日期:1985-11-01 00:00:00

  • VEGF mRNA and protein concentrations in the developing human eye.

    abstract:BACKGROUND:Vascular endothelial growth factor (VEGF), a well-characterized regulator of angiogenesis, has been mechanistically implicated in retinal neovascularization and in the pathogenesis of retinopathy of prematurity. However, the ontogeny of VEGF expression in the human fetal retina is not well known. Because ret...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1038/pr.2015.15

    authors: Ma IT,McConaghy S,Namachivayam K,Halloran BA,Kurundkar AR,MohanKumar K,Maheshwari A,Ohls RK

    更新日期:2015-04-01 00:00:00

  • Inotropic effects of prostaglandin D2 and E1 on the newborn rabbit heart.

    abstract::This study determines the inotropic effects of prostaglandin D2 (PGD2) and prostaglandin E1 (PGE1) in the isolated, arterial perfused newborn (NB) and adult (A) rabbit heart. Significant positive inotropism of PGD2 was observed at all concentrations studied (1 X 10(-17) to 1 X 10(-7) M) in the two age groups; the effe...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198412000-00010

    authors: Uemura S,Nakanishi T,Matsuoka S,Friedman WF,Jarmakani JM

    更新日期:1984-12-01 00:00:00

  • Phototherapy for neonatal jaundice: in vivo clearance of bilirubin photoproducts.

    abstract::Phototherapy results in the conversion of native bilirubin to more water-soluble configurational and structural isomers. The serum half-life for the configurational isomer, the principal photoproduct in vivo, was determined by high pressure liquid chromatography in six premature infants following cessation of photothe...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198502000-00012

    authors: Ennever JF,Knox I,Denne SC,Speck WT

    更新日期:1985-02-01 00:00:00