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https://www.readbyqxmd.com/read/28735240/therapeutic-effects-of-l-cysteine-in-newborn-mice-subjected-to-hypoxia-ischemia-brain-injury-via-the-cbs-h2s-system-role-of-oxidative-stress-and-endoplasmic-reticulum-stress
#1
Song Liu, Danqing Xin, Lingxiao Wang, Tiantian Zhang, Xuemei Bai, Tong Li, Yunkai Xie, Hao Xue, Shishi Bo, Dexiang Liu, Zhen Wang
Neonatal hypoxic-ischemic (HI) injury is a major cause of neonatal death and neurological dysfunction. H2S has been shown to protect against hypoxia-induced injury and apoptosis of neurons. L-Cysteine is catalyzed by cystathionine-β-synthase (CBS) in the brain and sequentially produces endogenous H2S. The present study was designed to investigate whether L-Cysteine could attenuate the acute brain injury and improve neurobehavioral outcomes following HI brain injury in neonatal mice by releasing endogenous H2S...
July 14, 2017: Redox Biology
https://www.readbyqxmd.com/read/28735030/effect-of-bosentan-therapy-in-persistent-pulmonary-hypertension-of-the-newborn
#2
Gunlawadee Maneenil, Anucha Thatrimontrichai, Waricha Janjindamai, Supaporn Dissaneevate
BACKGROUND: Persistent pulmonary hypertension of the newborn (PPHN) contributes to neonatal hypoxemia and is associated with a high mortality. Some PPHN patients are unresponsive to inhaled nitric oxide (iNO). Bosentan, an oral endothelin-1 receptor antagonist, reduces pulmonary vascular resistance and hence may play a role in the treatment of PPHN. METHODS: A retrospective medical records review was performed in newborns who received oral bosentan as an adjunctive therapy for treatment of PPHN between January 2013 and February 2016 at the neonatal intensive care unit of Songklanagarind Hospital...
July 11, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28734970/genetic-variation-in-low-dose-effects-of-neonatal-des-exposure-in-female-rats
#3
Hideo Ohmukai, Tsukasa Negura, Shigehiro Tachibana, Ryo Ohta
To confirm genetic variation in low-dose effects of diethylstilbestrol (DES), two inbred strains of rats, which have been selectively bred for high- and low-avoidance learning (HAA and LAA, respectively), were used in this study. LAA rats characteristically show later sexual maturation, earlier reproductive senescence, and lower body weight as compared to HAA rats. Female neonates of each strain were daily administered DES by oral gavage at doses of 0 (vehicle only), 0.05 and 0.5μg/kg for the first 5days after birth...
July 19, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28734809/-severe-poisoning-by-traditional-medication-in-the-newborn
#4
A Oulmaati, F Hmami, S Achour, A Bouharrou
The use of traditional products for therapeutic purposes in the newborn cause many cases of severe poisoning, especially in newborns. The aim of this study was to identify the main medicinal plants causing poisoning and emphasize the seriousness of poisonous plants. We report a series of eight newborns admitted for intake of poisonous medicinal plants admitted to the neonatal unit and neonatal intensive care unit at the Fez (Morocco) Hassan II University Hospital in 2014. The reasons for use were dominated by the infant's refusing to suckle...
July 19, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28734808/-congenital-cytomegalovirus-infection-manifesting-as-neonatal-respiratory-distress-in-an-hiv-exposed-uninfected-newborn
#5
A Pham, H El Mjati, N Nathan, F Kieffer, D Mitanchez
BACKGROUND: Cytomegalovirus (CMV) is one of the most common intrauterine infections, affecting approximately 1% of all live births. There are few reports on congenital CMV infections manifesting as isolated pneumonitis. CASE REPORT: We report a case of congenital CMV with neonatal respiratory distress affecting an HIV-exposed uninfected infant. This infant required noninvasive ventilation beginning within the first 15min of life. The initial chest X-ray showed diffuse bilateral ground-glass opacifications...
July 19, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28734807/-a-survey-on-premedication-prior-to-intubation-in-very-preterm-infants-28-32wg-with-respiratory-distress-syndrome-in-french-neonatal-intensive-care-units
#6
E Boiron, E Merlot, G Loron, X Durrmeyer, E Guyot
INTRODUCTION/OBJECTIVES: Tracheal intubation is a painful procedure for which the routine use of analgesia is recommended. However, the use of premedication for intubation is not yet generalized and there is great diversity in the drugs used. The main objective of this study was to describe the frequency of premedication use in preterm neonates aged between 28 and 32weeks of gestation, intubated for respiratory distress syndrome. Secondary objectives were to describe the existence of a written protocol, its influence on the frequency of premedication and the drugs used...
July 19, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28734801/sex-specific-differences-in-the-modulation-of-growth-differentiation-factor-15-gdf15-by-hyperoxia-in-vivo-and-in-vitro-role-of-hif-1%C3%AE
#7
Yuhao Zhang, Weiwu Jiang, Lihua Wang, Krithika Lingappan
Male premature neonates are more susceptible than females to the development of bronchopulmonary dysplasia (BPD). The reasons underlying sexually dimorphic outcomes in premature neonates are not known. GDF15 (Growth and differentiation factor 15) is a secreted cytokine and plays a role in cell proliferation, apoptosis, and angiogenesis. In this study, we sought to elucidate the sex-specific expression of Gdf15 in the lung in vivo in neonatal hyperoxic lung injury and its regulation by Hif-1α, and to delineate the differences in GDF15 expression in male and female human umbilical venous endothelial cells in an in vitro model of oxygen toxicity...
July 19, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28734732/perinatal-and-neonatal-use-of-sedation-and-analgesia
#8
REVIEW
Christopher McPherson, Terrie Inder
Optimal obstetric and neonatal care requires the provision of adequate analgesia for painful procedures. However, anesthetic and analgesic agents have the potential to adversely impact the developing fetal/neonatal brain. In this setting, clinicians must assess the risks and benefits of pharmacologic anesthesia and analgesia for specific indications in this population. General anesthesia is required for non-obstetric surgery and cesarean section in the absence of neuraxial anesthesia for the health of the mother and fetus...
July 19, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28734712/-candidemia-in-pediatrics-species-distribution-and-antifungal-susceptibility
#9
Luciana B Guzzetti, Cecilia M Vescina, M Florencia Gil, Blanca M Gatti
Serious infections caused by Candida yeasts are frequent in the hospital population. Due to differences in species distribution and antifungal susceptibility testing depending on the geographic area and the type of patient, it is important to study the epidemiology of each institution. For this purpose, we conducted a retrospective, descriptive study on the occurrence of candidemia in the Children's Hospital "Superiora Sor María Ludovica" of the city of La Plata. In a 6-year period (2010-2015), 177 candidemia episodes were recorded...
July 19, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28734690/salivary-c-reactive-protein-mean-platelet-volume-and-neutrophil-lymphocyte-ratio-as-diagnostic-markers-for-neonatal-sepsis
#10
Ahmed Omran, Abdallah Maaroof, Mai H Saleh, Amina Abdelwahab
OBJECTIVE: To assess the applicability of salivary C-reactive protein (CRP), mean platelet volume (MPV), neutrophil-lymphocyte ratio (NLR), and platelet lymphocyte ratio (PLR) in the diagnosis of neonatal sepsis. METHODS: Prospective case-control study of 70 full-term neonates, 35 with sepsis (20 with proven sepsis and 15 with clinical sepsis) and 35 healthy controls. Serum and salivary CRP concentrations were measured by ELISA while MPV, NLR, and PLR were measured by automated blood cell counter...
July 20, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28734510/neonatal-and-perinatal-infections
#11
REVIEW
Amira M Khan, Shaun K Morris, Zulfiqar A Bhutta
Lack of success in achieving considerable reductions in neonatal mortality is a contributory factor in failing to achieve Millennium Development Goal 4.2.6 million neonates still die each year, with preterm birth and infections the two leading causes. Maternal infections and environmental and infant factors influence acquisition of viral and bacterial infections in the perinatal and neonatal period. Scaling up evidence-based interventions addressing maternal risk factors and underlying causes could reduce neonatal infections by 84%...
August 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/28734102/are-electromagnetic-fields-in-incubators-a-risk-factor-for-autism
#12
Carlo V Bellieni, Giuseppe Buonocore
Hugo Lagercrantz recently argued (1) that a possible cause of infantile autism was the unnatural isolation that babies experienced in neonatal incubators. Atypical brain connectivity has been detected in children with autism and it is possible that this may be also due to environmental factors, including the lack of physiological stimuli that is typically found in the incubator environment. We suggest that also another factor may expose babies in incubators to the risk of developing autistic traits and that is the high electromagnetic fields (EMF) produced by the incubator's electric engine...
July 22, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28734063/atp-and-astrocytes-play-a-prominent-role-in-the-control-of-the-respiratory-pattern-generator-in-the-lamprey
#13
Elenia Cinelli, Ludovica Iovino, Donatella Mutolo
The role of ATP and astrocytes in respiratory rhythm modulation has been recently investigated in neonatal rodents. However, no information on the role of ATP and astrocytes within the respiratory network of the lamprey is available, particularly within the paratrigeminal respiratory group (pTRG), the proposed respiratory central pattern generator. To address these issues, the present study was carried out on isolated brainstems of the adult lamprey. Bath application of ATP caused marked increases in respiratory frequency followed by decreases in the respiratory motor output, mediated by the ATP metabolite adenosine at the level of the pTRG...
July 22, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28734014/improving-postmortem-testing-for-perinatal-death-from-the-parents-perspective
#14
Lindsey J Wimmer, Claire Storey, Robert Silver
Parents experiencing the death of a baby through stillbirth, neonatal death, or other perinatal losses are required to make several decisions while under a great deal of emotional distress. One such decision is whether or not to pursue testing that could provide more information about their baby's death. Lewis and colleagues state that postmortem testing is the most valuable tool available to learn about cause of death and implications for future health and pregnancies. This article is protected by copyright...
July 22, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28733681/gestational-age-specific-sex-difference-in-mortality-and-morbidities-of-preterm-infants-a-nationwide-study
#15
So-Yeon Shim, Su Jin Cho, Kyoung Ae Kong, Eun Ae Park
This study aims to determine whether male sex has adverse effect on mortality and morbidities in very low birth weight infants (VLBWI) <30 weeks of gestation and to ascertain this sex effect, stratified by gestational age, adjusting for perinatal risk factors. This is a population-based study from Korean Neonatal Network for VLBWI born at 23(+0) and 29(+6) weeks of gestation between January 2013 and December 2014. The primary outcome was gestation-specific sex difference in the occurrence of mortality, combined morbidities, and individual morbidity...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733534/low-dose-of-dexmedetomidine-as-an-adjuvant-to-bupivacaine-in-cesarean-surgery-provides-better-intraoperative-somato-visceral-sensory-block-characteristcs-and-postoperative-analgesia
#16
Yong-Hong Bi, Xiao-Guang Cui, Rui-Qin Zhang, Chun-Yu Song, Yan-Zhuo Zhang
OBJECT: In this study, we aimed to investigate the beneficial effects of dexmedetomidine on somato-visceral sensory block characteristcs, postoperative analgesia and stress response of intrathecal bupivacaine administration in women undergoing cesarean section, and to find out which dose is better. METHODS: Sixty parturients with the American Society of Anesthesiologists (ASA) physical status I or II were anesthetized with intrathecal bupivacaine(10mg) alone or in combination with dexmedetomidine (3 μg and 5 μg) to undergo cesarean section...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28733478/growth-and-morbidity-of-extremely-preterm-infants-after-early-full-enteral-nutrition
#17
Christoph Maas, Axel R Franz, Stefanie von Krogh, Jörg Arand, Christian F Poets
OBJECTIVES: To evaluate feasibility and consequences of accelerated feeding advancement on short-term outcomes in extremely low gestational age neonates (ELGANs) who stayed in our institution for >28 days. METHODS: Retrospective single-centre cohort analysis covering the years 2011-2013. Data are presented as median (IQR). RESULTS: Infants '(n=77) birth weight was 745 (640 to 960) g and gestational age at birth 26.7 (25.1 to 27.4) weeks...
July 21, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28733449/mitochondrial-function-in-engineered-cardiac-tissues-is-co-regulated-by-extracellular-matrix-elasticity-and-tissue-alignment
#18
Davi Marco Lyra-Leite, Allen Mariano Andres, Andrew Patrick Petersen, Nethika Ruvini Ariyasinghe, Nathan Cho, Jezell Athena Lee, Roberta A Gottlieb, Megan L McCain
Mitochondria in cardiac myocytes are critical for generating ATP to meet the high metabolic demands associated with sarcomere shortening. Distinct remodeling of mitochondrial structure and function occur in cardiac myocytes in both developmental and pathological settings. However, the factors that underlie these changes are poorly understood. Because remodeling of tissue architecture and extracellular matrix (ECM) elasticity are also hallmarks of ventricular development and disease, we hypothesize that these environmental factors regulate mitochondrial function in cardiac myocytes...
July 21, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28733445/enhanced-no-dependent-pulmonary-vasodilation-limits-increased-vasoconstrictor-sensitivity-in-neonatal-chronic-hypoxia
#19
Joshua R Sheak, Laura Weise-Cross, Ray J deKay, Benjimen R Walker, Nikki L Jernigan, Thomas C Resta
Augmented vasoconstrictor reactivity is thought to play an important role in the development of chronic hypoxia (CH)-induced neonatal pulmonary hypertension (pHTN). However, whether this response to CH results from pulmonary endothelial dysfunction and reduced NO-mediated vasodilation is not well understood. We hypothesized that neonatal CH enhances basal tone and pulmonary vasoconstrictor sensitivity by limiting NO-dependent pulmonary vasodilation. To test this hypothesis, we assessed effects of the NO synthase (NOS) inhibitor N(w)-nitro-L-arginine (L-NNA) on baseline pulmonary vascular resistance (PVR) and vasoconstrictor sensitivity to the thromboxane mimetic U-46619 in saline-perfused lungs (in situ) from 2-wk-old control and CH (12 day exposure, 0...
July 21, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28733429/proteogenomic-analysis-and-discovery-of-immune-antigens-in-mycobacterium-vaccae
#20
Jianhua Zheng, Lihong Chen, Liguo Liu, Haifeng Li, Bo Liu, Dandan Zheng, Tao Liu, Jie Dong, Lilian Sun, Yafang Zhu, Jian Yang, Xiaobing Zhang, Qi Jin
Tuberculosis (TB) is one of the leading causes of death worldwide, especially in developing countries. Neonatal BCG vaccination occurs in various regions, but the level of protection varies in different populations. Recently, Mycobacterium vaccae is found to be an immunomodulating therapeutic agent that could confer a significant level of protection against TB. It is the only vaccine in a phase III trial from WHO to assess its efficacy and safety in preventing TB disease in people with latent TB infection. However, the mechanism of immunotherapy of M...
July 21, 2017: Molecular & Cellular Proteomics: MCP
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