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Neonatal injury

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https://www.readbyqxmd.com/read/28731182/il%C3%A2-6-stat3-mir%C3%A2-34a-protects-against-neonatal-lung-injury-patients
#1
Huajun Liu, Wenbin Liu, Xueqing Tang, Taisen Wang, Xianlin Sun, Jie Lv
The present study aimed to investigate the protective role of the interleukin (IL)‑6/signal transducer and activator of transcription 3 (STAT3)/microRNA (miR)‑34a signaling pathway in patients with neonatal lung injury (NLI) and the underlying molecular mechanisms of these effects. It was demonstrated that miR‑34a serum expression was significantly upregulated in patients and mice with NLI. Meanwhile, IL‑6 and phosphorylated‑STAT3 protein expression, and tumor necrosis factor (TNF)‑α, IL‑1β and IL‑18 activity levels in NLI mice were significantly induced compared with the normal control group...
July 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28729454/multimodal-regulation-of-cardiac-myocyte-proliferation
#2
REVIEW
Xuejun Yuan, Thomas Braun
Efficient cardiac regeneration is closely associated with the ability of cardiac myocytes to proliferate. Fetal or neonatal mouse hearts containing proliferating cardiac myocytes regenerate even extensive injuries, whereas adult hearts containing mostly post-mitotic cardiac myocytes have lost this ability. The same correlation is seen in some homoiotherm species such as teleost fish and urodelian amphibians leading to the hypothesis that cardiac myocyte proliferation is a major driver of heart regeneration...
July 21, 2017: Circulation Research
https://www.readbyqxmd.com/read/28727729/induction-of-labor-versus-expectant-management-of-large-for-gestational-age-infants-in-nulliparous-women
#3
Karolina Moldéus, Yvonne W Cheng, Anna-Karin Wikström, Olof Stephansson
BACKGROUND: There is no apparent consensus on obstetric management, i.e., induction of labor or expectant management of women with suspected large-for-gestational-age (LGA)-fetuses. METHODS AND FINDINGS: To further examine the subject, a nationwide population-based cohort study from the Swedish Medical Birth Register in nulliparous non-diabetic women with singleton, vertex LGA (>90th centile) births, 1992-2013, was performed. Delivery of a live-born LGA infant induced at 38 completed weeks of gestation in non-preeclamptic pregnancies, was compared to those of expectant management, with delivery at 39, 40, 41, or 42 completed weeks of gestation and beyond, either by labor induction or via spontaneous labor...
2017: PloS One
https://www.readbyqxmd.com/read/28726789/predominant-area-of-brain-lesions-in-neonates-with-herpes-simplex-encephalitis
#4
H Kidokoro, L S de Vries, C Ogawa, Y Ito, A Ohno, F Groenendaal, S Saitoh, A Okumura, Y Ito, J Natsume
OBJECTIVE: Nonspecific manifestations and a varied distribution of brain lesions can delay the diagnosis of herpes simplex encephalitis (HSE) in neonates. The aim of this study was to report predominant brain lesions in neonatal HSE, and then to investigate the association between pattern of predominant brain lesions, clinical variables and neurodevelopmental outcome. STUDY DESIGN: A multicenter retrospective study was performed in neonates diagnosed with HSE between 2009 and 2014...
July 20, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28725177/characterization-of-lgr5-progenitor-cell-transcriptomes-after-neomycin-injury-in-the-neonatal-mouse-cochlea
#5
Shasha Zhang, Yuan Zhang, Pengfei Yu, Yao Hu, Han Zhou, Lingna Guo, Xiaochen Xu, Xiaocheng Zhu, Muhammad Waqas, Jieyu Qi, Xiaoli Zhang, Yan Liu, Fangyi Chen, Mingliang Tang, Xiaoyun Qian, Haibo Shi, Xia Gao, Renjie Chai
Lgr5+ supporting cells (SCs) are enriched hair cell (HC) progenitors in the cochlea. Both in vitro and in vivo studies have shown that HC injury can spontaneously activate Lgr5+ progenitors to regenerate HCs in the neonatal mouse cochlea. Promoting HC regeneration requires the understanding of the mechanism of HC regeneration, and this requires knowledge of the key genes involved in HC injury-induced self-repair responses that promote the proliferation and differentiation of Lgr5+ progenitors. Here, as expected, we found that neomycin-treated Lgr5+ progenitors (NLPs) had significantly greater HC regeneration ability, and greater but not significant proliferation ability compared to untreated Lgr5+ progenitors (ULPs) in response to neomycin exposure...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28724325/use-and-timing-of-surfactant-administration-impact-on-neonatal-outcomes-in-extremely-low-gestational-age-infants-born-in-canadian-neonatal-intensive-care-units
#6
Amelie Stritzke, Khorshid Mohammad, Prakesh S Shah, Xiang Y Ye, Vineet Bhandari, Albert Akierman, Adele Harrison, Valerie Bertelle, Abhay Lodha
BACKGROUND: Use, timing and doses of surfactant in preterm infants are variable in practice in modern NICUs. OBJECTIVE: To explore the association between use and timing of surfactant administration and common neonatal adverse outcomes in preterm infants with gestational age (GA) < 28 weeks. MATERIAL AND METHODS: Neonates admitted to a participating Canadian Neonatal Network NICU between 2013 and 2015 were studied. Infants were divided into three groups based on surfactant administration: None, early (within 30 minutes of life), and late surfactant (> 30 minutes)...
July 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28724193/saline-irrigation-for-the-management-of-skin-extravasation-injury-in-neonates
#7
REVIEW
P N Gopalakrishnan, Nitin Goel, Sujoy Banerjee
BACKGROUND: Extravasation injury, a complication commonly seen in the neonatal intensive care unit, can result in scarring with cosmetic and functional sequelae. A wide variety of treatments are available, including subcutaneous irrigation with saline (with or without hyaluronidase), liposuction, use of specific antidotes, topical applications, and normal wound care with dry or wet dressings. All such treatments aim to prevent or reduce the severity of complications. OBJECTIVES: Primary objective To compare the efficacy and safety of saline irrigation or saline irrigation with prior hyaluronidase infiltration versus no intervention or normal wound care for tissue healing in neonates with extravasation injury...
July 19, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28721600/resveratrol-ameliorates-hypoxia-ischemia-induced-brain-injury-in-the-neonatal-rat-via-the-mir-96-bax-axis
#8
Hongen Bian, Haijun Shan, Tuanying Chen
OBJECTIVE: This study was aimed to investigate the mechanism of resveratrol on amelioration of hypoxia/ischemia (H/I)-induced brain injury. METHODS: The RT-PCR and western blot were used to detect the mRNA and protein expressions, respectively. The PC12 cell induced by OGD/R was as in vitro H/I brain injury model. The luciferase reporter assay was used to prove the relationship between Bax and miR-96, and the cell apoptosis was detected by MTT assay. The loss of MBP+ area in neonatal rats analyzed by immunohistochemistry was to evaluate the extent of brain injury...
July 18, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28720571/the-integrated-stress-response-in-hypoxia-induced-diffuse-white-matter-injury
#9
Benjamin Ll Clayton, Aaron Huang, Rejani B Kunjamma, Ani Solanki, Brian Popko
Currently no treatments exist for preterm infants with diffuse white matter injury (DWMI) caused by hypoxia. Due to improved care of preterm neonates and increased recognition by advanced imaging techniques, the prevalence of DWMI is increasing. A better understanding of the pathophysiology of DWMI is therefore of critical importance. The integrated stress response (ISR), a conserved eukaryotic response to myriad stressors including hypoxia, may play a role in hypoxia-induced DWMI and may represent a novel target for much needed therapies...
July 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28719549/long-term-follow-up-of-neonatal-brachial-plexopathy-psychological-and-physical-function-in-adolescents-and-young-adults
#10
Lesley Butler, Janith Mills, Heather M Richard, Russell Riddle, Marybeth Ezaki, Scott Oishi
PURPOSE: The prevalence of neonatal brachial plexus palsy (NBPP) has been increasing since the early 1980s. No known studies have examined long-term psychological health and quality of life (QOL) in young adults. The purpose of this study was to investigate the psychosocial and intellectual aspects of NBPP during adolescence into young adulthood. METHODS: A total of 31 patients were enrolled in the adolescent group (16 to 18 y) and 25 in the young adult group (23 to 28 y)...
July 17, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28716558/emmprin-overexpression-in-svz-neural-progenitor-cells-increases-their-migration-towards-ischemic-cortex
#11
Michiko Kanemitsu, Oleg Tsupykov, Gaël Potter, Michael Boitard, Patrick Salmon, Eloisa Zgraggen, Eduardo Gascon, Galina Skibo, Alexandre G Dayer, Jozsef Z Kiss
Stimulation of endogenous neurogenesis and recruitment of neural progenitors from the subventricular zone (SVZ) neurogenic site may represent a useful strategy to improve regeneration in the ischemic cortex. Here, we tested whether transgenic overexpression of extracellular matrix metalloproteinase inducer (EMMPRIN), the regulator of matrix metalloproteinases (MMPs) expression, in endogenous neural progenitor cells (NPCs) in the subventricular zone (SVZ) could increase migration towards ischemic injury. For this purpose, we applied a lentivector-mediated gene transfer system...
July 14, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28715845/apatinib-an-inhibitor-of-vascular-endothelial-growth-factor-receptor-2-suppresses-pathologic-ocular-neovascularization-in-mice
#12
Koung Li Kim, Wonhee Suh
Purpose: Vascular endothelial growth factor (VEGF) signaling via VEGF receptor 2 (VEGFR2) plays a crucial role in pathologic ocular neovascularization. In this study, we investigated the antiangiogenic effect of apatinib, a pharmacologic inhibitor of VEGFR2 tyrosine kinase, against oxygen-induced retinopathy (OIR) and laser-induced choroidal neovascularization (CNV) in mice. Methods: Western blotting and in vitro angiogenesis assays were performed using human retinal microvascular endothelial cells (HRMECs)...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28715154/the-role-of-oxidative-stress-in-acute-renal-injury-of-newborn-rats-exposed-to-hypoxia-and-endotoxin
#13
Egor Y Plotnikov, Tatiana A Pavlenko, Irina B Pevzner, Ljubava D Zorova, Vasily N Manskikh, Denis N Silachev, Gennady T Sukhikh, Dmitry B Zorov
Neonatal kidney injury is a frequent pathology, especially among premature infants. The search for effective nephroprotection requires the creation of adequate experimental models of nephropathy in newborns. In this study, we explored the development of acute kidney injury (AKI) in neonatal rats during hypoxia or administration of endotoxin. We found that 2-h hypoxia (8% O2 ) and the intraperitoneal injection of 4 mg/kg lipopolysaccharide (LPS) causes the appearance of AKI markers, such as КIM-1 and NGAL in the rat urine after 24 and 72 h of exposure...
July 17, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28711232/sleep-an-underemphasized-aspect-of-health-and-development-in-neurorehabilitation
#14
Olaf Verschuren, Jan Willem Gorter, Lesley Pritchard-Wiart
Sleep deficiency has unique causes and implications for children with neonatal brain injury; contributing to the development or exacerbation of neurodevelopmental impairments and yet it is an underemphasized aspect of health and development. There is very little research evidence to guide the management of sleep disorders in children with cerebral palsy, a common neurodevelopmental disability of childhood. This paper is a comprehensive review and analysis of the literature regarding what is known about sleep quantity and quality in children with cerebral palsy...
July 12, 2017: Early Human Development
https://www.readbyqxmd.com/read/28711179/immediate-birth-an-analysis-of-women-and-their-babies-undergoing-time-critical-birth-in-a-tertiary-referral-obstetric-hospital
#15
M H Warren, J Kamania, A T Dennis
BACKGROUND: At our institution, the emergency obstetric 'code green' activates the system for immediate birth, usually by caesarean section. This study aimed to determine the incidence of immediate birth, indications, modes of anaesthesia, and short-term neonatal and maternal outcomes. METHOD: A review was performed for all women at the Royal Women's Hospital, Parkville, Australia who underwent immediate birth over a two-year period: January 1, 2013 to December 31, 2014...
June 16, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28711075/diabetic-nephropathy-and-pregnancy
#16
Kate Bramham
Women with diabetic nephropathy have challenging pregnancies, with pregnancy outcomes far worse than expected for the stage of chronic kidney disease. The underlying mechanisms that cause the adverse events remain poorly understood, but it is a widely held belief that substantial endothelial injury in these women likely contributes. Maternal hypertension, preeclampsia, and cesarean section rates are high, and offspring are often preterm and of low birth weight, with additional neonatal complications associated with glycemic control...
July 2017: Seminars in Nephrology
https://www.readbyqxmd.com/read/28711069/preterm-birth-and-its-impact-on-renal-health
#17
Valerie A Luyckx
Preterm birth occurs in approximately 10% of all births worldwide. Preterm infants have reduced nephron numbers at birth in proportion to gestational age, and are at increased risk of neonatal acute kidney injury as well as higher blood pressure, proteinuria, and chronic kidney disease later in life. Rapid catch-up growth in preterm infants, especially if resulting in obesity, is a risk factor for end-stage kidney disease among children with proteinuric renal disease. Preterm birth, however, is a risk factor not only for the infant because mothers who deliver preterm have an increased risk of having subsequent preterm deliveries as well as hypertension, cardiovascular disease, and renal disease later in life...
July 2017: Seminars in Nephrology
https://www.readbyqxmd.com/read/28709955/neonatal-injury-results-in-sex-dependent-nociceptive-hypersensitivity-and-social-behavioral-deficits-during-adolescence-without-altering-morphine-response
#18
Nikita N Burke, Tuan Trang
Neonatal injury is associated with persistent changes in sensory function and altered nociceptive thresholds that give rise to aberrant pain sensitivity in later life. While these changes are well documented in adult rodents, little is known about the consequences of neonatal injury during adolescence. Since adolescence is a critical developmental period during which persistent pain conditions can arise, we examined the impact of neonatal injury on nociception, social behavior and response to morphine in adolescent Sprague Dawley rats...
July 11, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28709915/sex-differences-in-somatic-and-sensory-motor-development-after-neonatal-anoxia-in-wistar-rats
#19
Amrita Jha Kumar, Silvia Honda Takada, Lívia Clemente Motta-Teixeira, Vitor Yonamine Lee, Gilberto Fernando Xavier, Maria Inês Nogueira
Currently, one of the important causes of brain injury in new-borns is the neonatal anoxia which impacts the perinatology services worldwide. Animal models of anoxia have been used to assess its effects at cellular and behavioural levels in all ages, but few studies focus on sex differences. This study aimed to investigate some physical parameters of development, sensorimotor alterations, early neurological reflexes as well as the density of cells in motor and sensorimotor cerebral cortex of adolescent rats submitted to neonatal anoxia...
July 12, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28709451/comparing-very-low-birth-weight-versus-very-low-gestation-cohort-methods-for-outcome-analysis-of-high-risk-preterm-infants
#20
Louise Im Koller-Smith, Prakesh S Shah, Xiang Y Ye, Gunnar Sjörs, Yueping A Wang, Sharon S W Chow, Brian A Darlow, Shoo K Lee, Stellan Håkanson, Kei Lui
BACKGROUND: Compared to very low gestational age (<32 weeks, VLGA) cohorts, very low birth weight (<1500 g; VLBW) cohorts are more prone to selection bias toward small-for-gestational age (SGA) infants, which may impact upon the validity of data for benchmarking purposes. METHOD: Data from all VLGA or VLBW infants admitted in the 3 Networks between 2008 and 2011 were used. Two-thirds of each network cohort was randomly selected to develop prediction models for mortality and composite adverse outcome (CAO: mortality or cerebral injuries, chronic lung disease, severe retinopathy or necrotizing enterocolitis) and the remaining for internal validation...
July 14, 2017: BMC Pediatrics
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