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Neonatal pathology

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https://www.readbyqxmd.com/read/28547531/neonatal-hyperoxia-perturbs-neuronal-development-in-the-cerebellum
#1
Till Scheuer, Yuliya Sharkovska, Victor Tarabykin, Katharina Marggraf, Vivien Brockmöller, Christoph Bührer, Stefanie Endesfelder, Thomas Schmitz
Impaired postnatal brain development of preterm infants often results in neurological deficits. Besides pathologies of the forebrain, maldeveolopment of the cerebellum is increasingly recognized to contribute to psychomotor impairments of many former preterm infants. However, causes are poorly defined. We used a hyperoxia model to define neonatal damage in cerebellar granule cell precursors (GCPs) and in Purkinje cells (PCs) known to be essential for interaction with GCPs during development. We exposed newborn rats to 24 h 80% O2 from age P6 to P7 to identify postnatal and long-term damage in cerebellar GCPs at age P7 after hyperoxia and also after recovery in room air thereafter until P11 and P30...
May 25, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28545763/13-ribs-as-a-predictor-of-long-gap-esophageal-atresia-myth-or-reality-analysis-of-associated-findings-of-esophageal-atresia-and-abnormal-rib-count
#2
Jonathan Durell, Haitham Dagash, Bala Eradi, Ashok Rajimwale, Shawqui Nour, Nitin Patwardhan
BACKGROUND: The presence of 13 pairs of ribs on pre-operative chest x-ray has been postulated to be an indicator for long gap esophageal atresia (EA). This study sought to determine the validity of this theory and identify associated pathological conditions in patients with EA and abnormal rib count. METHODS: Babies with EA from January 2005 - December 2012 were retrospectively analyzed. Information was gathered from neonatal health records and operation notes. Chest x-rays were reviewed to determine rib count...
May 2, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28544770/review-article-screening-genetics-risk-factors-and-treatment-of-neonatal-cataracts
#3
REVIEW
Jinyu Li, Chun-Hong Xia, Eddie Wang, Ke Yao, Xiaohua Gong
Neonatal cataracts remain the most common cause of visual loss in children worldwide and have diverse, often unknown, etiologies. This review summarizes current knowledge about the detection, treatment, genetics, risk factors, and molecular mechanisms of congenital cataracts. We emphasize significant progress and topics requiring further study in both clinical cataract therapy and basic lens research. Advances in genetic screening and surgical technologies have improved the diagnosis, management, and visual outcomes of affected children...
May 22, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28542743/neuroimaging-cardiovascular-physiology-and-functional-outcomes-in-infants-with-congenital-heart-disease
#4
REVIEW
Nathalie H P Claessens, Christopher J Kelly, Serena J Counsell, Manon J N L Benders
This review integrates data on brain dysmaturation and acquired brain injury using fetal and neonatal magnetic resonance imaging (MRI), including the contribution of cardiovascular physiology to differences in brain development, and the relationship between brain abnormalities and subsequent neurological impairments in infants with congenital heart disease (CHD). The antenatal and neonatal period are critical for optimal brain development; the developing brain is particularly vulnerable to haemodynamic disturbances during this time...
May 19, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28542653/-folate-and-pregnancy-current-concepts-it-is-required-folic-acid-supplementation
#5
Erika Castaño, Raúl Piñuñuri, Sandra Hirsch, Ana María Ronco
Folate intake during pregnancy is essential for an adequate fetal and placental development and for the long time health of the individual. Its deficiency may induce fetal pathologies, including neural tube disease (NTD). Therefore, several countries implemented public policies to fortify foods with folic acid (FA). Chile started the fortification of wheat flour with FA in the year 2000, decreasing a 43% the prevalence of NTD. However, despite the high consumption of bread (the main fortified food with FA) by our population, a high number of pregnant women consume FA supplements, thus, over passing the maximal recommended FA intake...
April 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28541875/infantile-myofibromatosis-a-clinical-and-pathological-diagnostic-challenge
#6
Fernando Mota, Susana Machado, Filipa Moreno, Telma Barbosa, Manuela Selores
Infantile myofibromatosis is a rare disorder of fibroblastic/myofibroblastic proliferation and represents the most frequent type of mesenchymal tumor in the neonatal period and primary infancy.Three clinical types have been described: solitary, multicentric, and generalized (with visceral involvement). A correct characterization of the histopathology is essential to diagnose these neoplasias in early infancy. We present a case of multicentric infantile myofibromatosis with regression over time.
April 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28540257/dynamic-interaction-of-enterovirus-71-and-dendritic-cells-in-infected-neonatal-rhesus-macaques
#7
Ting Zhao, Zhixiao Zhang, Ying Zhang, Min Feng, Shengtao Fan, Lichun Wang, Longding Liu, Xi Wang, Qinglin Wang, Xiaolong Zhang, Jingjing Wang, Yun Liao, Zhanlong He, Shuaiyao Lu, Huai Yang, Qihan Li
Enterovirus 71 (EV71) is one of the main pathogens responsible for hand, foot, and mouth disease (HFMD). Infection with EV71 can lead to severe clinical disease via extensive infections of either the respiratory or alimentary tracts in children. Based on the previous pathological study of EV71 infections in neonatal rhesus macaques, our work using this animal model and an EV71 chimera that expresses enhanced green fluorescent protein (EGFP-EV71) primarily explored where EV71 localizes and proliferates, and the subsequent initiation of the pathological process...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28538064/temporomandibular-joint-ankylosis-after-early-mandibular-distraction-osteogenesis-a-new-syndrome
#8
Manlio Galié, Valentina Candotto, Giovanni Elia, Luigi C Clauser
Distraction osteogenesis (DO) has been one of the most innovative concepts in cranio-maxillofacial syndromology and surgery over the last 25 years.Early mandibular distraction in severe micrognathia has recently been recognized as an effective treatment option to safely relieve upper airway obstruction associated with mandibular deficiency.An increased incidence in temporomandibular joint complications during DO in neonates has recently been reported, especially in syndromic patients.The authors report 2 children affected by severe micrognathia and severe respiratory distress at birth...
May 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28535404/placental-inflammation-and-its-relationship-to-cervicovaginal-fetal-fibronectin-in-preterm-birth
#9
Laura van der Krogt, Alexandra E Ridout, Paul T Seed, Andrew H Shennan
OBJECTIVE: Late miscarriage and preterm birth are frequently thought to be associated with inflammation and infection, although in most cases the underlying cause of early delivery remains unknown. The placenta is the organ that links mother and fetus during pregnancy, and postnatal examination may provide useful information about pathophysiology. The relationship between placental pathological lesions and predictive markers of early delivery has not been explored. We sought to characterize preterm deliveries according to placental pathology and relate these to the performance of reliable predictive markers, fetal fibronectin and cervical length...
May 3, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28534970/correlation-of-four-potential-biomarkers-of-liver-fibrosis-with-liver-function-and-grade-of-hepatic-fibrosis-in-a-neonatal-cholestatic-rat-model
#10
Ning Tang, Yaping Zhang, Zeyu Liu, Xuemei Ai, Qinghong Liang
The present study investigated the correlation between four serum biomarkers of liver fibrosis, liver function and pathological hepatic fibrosis grade in neonatal cholestatic rats. A total of 38 Sprague‑Dawley rats, aged 3 weeks, were randomly assigned to the experimental group (EG), control group (CG) and the blank control group (BCG). EG received intragastric administration of 1% α‑naphthylisothiocyanate, 75 mg/kg, to induce acute cholestasis liver injury, CG and BCG were set as control groups. Blood samples from all groups were collected 48 h following the procedure...
May 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28530252/new-trends-in-rehabilitation-of-children-with-ent-disorders
#11
R Bovo, P Trevisi, E Zanoletti, D Cazzador, T Volo, E Emanuelli, A Martini
In the last 20 years, neonatal survival has progressively increased due to the constant amelioration of neonatal medical treatment and surgical techniques. Thus, the number of children with congenital malformations and severe chronic pathologies who need rehabilitative care has progressively increased. Rehabilitation programs for paediatric patients with disorders of voice, speech and language, communication and hearing, deglutition and breathing are not widely available in hospital settings or in long-term care facilities...
May 22, 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28525876/discrete-category-of-mother-to-infant-bonding-disorder-and-its-identification-by-the-mother-to-infant-bonding-scale-a-study-in-japanese-mothers-of-a-1-month-old
#12
Asami Matsunaga, Fumie Takauma, Katsuhiko Tada, Toshinori Kitamura
BACKGROUND: Difficulty of maternal bonding towards a baby is widely recognised. It is unclear whether this phenomenon is dimensional or categorical. If categorical, an optimal cut-off score of a screening instrument is needed in clinical settings. AIMS: In this study, we investigated whether maternal bonding is dimensional or categorical phenomenon and try to set optimal cut-off score of screening instruments. METHODS: Self-report questionnaire studies were conducted in a general hospital and four antenatal clinics...
May 16, 2017: Early Human Development
https://www.readbyqxmd.com/read/28510235/surfactants-in-acute-respiratory-distress-syndrome-in-infants-and-children-past-present-and-future
#13
REVIEW
Angela Amigoni, Andrea Pettenazzo, Valentina Stritoni, Maria Circelli
There is a lack of definitive data on the effective management of acute respiratory distress syndrome (ARDS) in infants and children. The development and validation of the Berlin definition (BD) for ARDS and the Pediatric Acute Lung Injury Consensus Conference (PALICC) recommendations in children represented a major advance in optimizing research and treatment, mainly due to the introduction of a severe ARDS category. Proposed reasons for the lack of consistent results with surfactants in children and infants compared with neonates include different causes, type of lung damage (direct or indirect), timing and mode of administration as well as the type of surfactant used...
May 16, 2017: Clinical Drug Investigation
https://www.readbyqxmd.com/read/28507335/bnip3l-promotes-cardiac-fibrosis-in-cardiac-fibroblasts-through-ca-2-i-tgf-%C3%AE-smad2-3-pathway
#14
Weili Liu, Xinxing Wang, Zhusong Mei, Jingbo Gong, Lishuang Huang, Xiujie Gao, Yun Zhao, Jing Ma, Lingjia Qian
Fibrosis is an important, structurally damaging event that occurs in pathological cardiac remodeling, leading to cardiac dysfunction. BNIP3L is up-regulated in pressure overload-induced heart failure and has been reported to play an important role in cardiomyocyte apoptosis; however, its involvement in cardiac fibroblasts (CFs) remains unknown. We prove for the first time that the expression of BNIP3L is significantly increased in the CFs of rats undergoing pressure overload-induced heart failure. Furthermore, this increased BNIP3L expression was confirmed in cultured neonatal rat CFs undergoing proliferation and extracellular matrix (ECM) protein over-expression that was induced by norepinephrine (NE)...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28504491/profile-of-spontaneous-demand-for-services-among-infants-younger-than-30-days-old-at-a-children-s-tertiary-care-hospital
#15
Soledad Arbio, Nicolás Brunner, Eugenio Pierro, Susana Rodríguez, Diana Fariña
INTRODUCTION: In recent years, admission of critical newborn infants (NBIs) to the neonatal intensive care unit of Hospital Garrahan (HG) has been limited due to the hospitalization of infants younger than 30 days old through spontaneous demand for services. This is probably a multifactorial situation, and one of its causes is a lack of regionalization, which results in an inadequate use of resources or a distorted use of resources intended for more complex care. OBJECTIVE: To establish the profile of NBIs who make a spontaneous demand for services at HG and to assess the level of care required based on their medical condition...
June 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28502649/post-implantation-development-of-red-rumped-agouti-dasyprocta-leporina-linnaeus-1758
#16
Gleidson Benevides de Oliveira, Hélio Noberto de Araújo Júnior, Herson da Silva Costa, Alexandre Rodrigues Silva, Carlos Eduardo Bezerra de Moura, Hugo Alexandre de Oliveira Rocha, Maria Angélica Miglino, Moacir Franco de Oliveira
Fourteen pregnant agouti (Dasyprocta leporina Linnaeus, 1758) females at gestational ages of 30-100days and two at gestational ages of 55-100days, were studied, including 24 embryos/fetuses and two neonates (single offspring from two females). Females were euthanized and embryos/fetuses were examined, measured, and photographed. Embryos at 30days post-copulation were "C-shaped," with paddle-shaped limb buds and 10.75±0.11mm crown-rump length (CRL). In embryos at 35days post-copulation, paddle-shaped forelimbs, fin-shaped pelvic limbs, and a liver bud were evident, with 15...
May 2, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28501220/7-8-hydroxy-2-deoxyguanosine-2-deoxiguanosine-ratio-determined-in-hydrolysates-of-brain-dna-by-ultrachromatrography-coupled-to-tandem-mass-spectrometry
#17
Isabel Torres-Cuevas, Miguel Aupi, Miguel Angel Asensi, Máximo Vento, Ángel Ortega, Javier Escobar
7,8-hydroxy-2'-deoxyguanosine (8-OHdG) is an abundant DNA lesion formed by oxidation of the nucleoside 2'-deoxyguanosine (2-dG) and one of the most studied and accepted oxidative stress biomarkers. 8-OHdG has a strong carcinogenic potential, and prolonged oxidative stress heightens pathological conditions and especially cancer risk. Our aim was to develop, validate and apply a reliable method to assess DNA oxidation in genomic cellular DNA of sensible target organs such as brain. A procedure to isolate and digest the DNA of brain tissue properly for further detection of 8-OHdG and 2-dG by Ultra Performance Liquid Chromatography-tandem Mass Spectrometry (UPLC-MS/MS) was optimized...
August 1, 2017: Talanta
https://www.readbyqxmd.com/read/28499796/the-antenatal-urinary-tract-dilation-classification-system-accurately-predicts-severity-of-kidney-and-urinary-tract-abnormalities
#18
C D W Kaspar, M Lo, T E Bunchman, N Xiao
BACKGROUND: Urinary tract dilation (UTD) is a commonly diagnosed prenatal condition; however, it is currently unknown which features lead to benign and resolving or pathologic abnormalities. A consensus UTD classification system (antenatal UTD classification, UTD-A) was created by Nguyen et al. in 2014 [1], but has not yet been validated. OBJECTIVE: To evaluate the ability of the UTD-A system to identify kidney and urinary tract (KUT) abnormalities, assess whether UTD-A can predict severity of KUT conditions, and perform a cost analysis of screening ultrasound (US)...
April 21, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28497716/polyglucosan-bodies-in-placental-extravillious-trophoblast-for-the-diagnosis-of-fatal-perinatal-neuromuscular-type-glycogen-storage-disease-type-iv
#19
Weiming Yu, Marie-Anne Brundler, James R Wright
The fatal infantile neuromuscular type is the most severe form of glycogen storage disease type IV. We report a case of a 22-day-old female neonate born at 34 weeks gestation with polyhyramnios, fetal hydrops, and severe hypotonia. Placental examination revealed numerous periodic acid schiff (PAS)-positive diastase-resistant polyglucosan bodies in the cytoplasm of extravillous trophoblast predominantly in the placental basal plate. Muscle biopsy and autopsy findings supported a diagnosis of neuromuscular-type glycogen storage disease IV with extensive involvement of skeletal muscle, heart, and liver...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28497371/sestrin-2-attenuates-neonatal-rat-cardiomyocyte-hypertrophy-induced-by-phenylephrine-via-inhibiting-erk1-2
#20
Bin Dong, Ruicong Xue, Yu Sun, Yugang Dong, Chen Liu
Cardiac hypertrophy is an adaptive response triggered by many physiological and pathological conditions and will lead to heart failure eventually. Sestrin 2, which is a stress-responsive protein, was reported to protect heart from ischemia reperfusion injury. However, the role of Sestrin 2 in cardiac hypertrophy remains unknown. In our present study, we aimed to explore the effects of Sestrin 2 on cardiomyocyte hypertrophy. We found that knockdown of Sestrin 2 protein aggravated cardiomyocyte hypertrophy induced by phenylephrine (PE), featured by increased hypertrophic marker ANP and cell surface area...
May 11, 2017: Molecular and Cellular Biochemistry
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