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Neonatal over exposure

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https://www.readbyqxmd.com/read/28936111/agile-development-of-a-smartphone-app-for-perinatal-monitoring-in-a-resource-constrained-setting
#1
Boris Martinez, Rachel Hall-Clifford, Enma Coyote, Lisa Stroux, Camilo E Valderrama, Christopher Aaron, Aaron Francis, Cate Hendren, Peter Rohloff, Gari D Clifford
Technology provides the potential to empower frontline healthcare workers with low levels of training and literacy, particularly in low- and middle-income countries. An obvious platform for achieving this aim is the smartphone, a low cost, almost ubiquitous device with good supply chain infrastructure and a general cultural acceptance for its use. In particular, the smartphone offers the opportunity to provide augmented or procedural information through active audiovisual aids to illiterate or untrained users, as described in this article...
2017: Journal of Health Informatics in Developing Countries
https://www.readbyqxmd.com/read/28926834/heme-oxygenase-activity-and-heme-binding-in-a-neonatal-mouse-model
#2
Stephanie Kourula, Joyce Ang, Hui Zhao, Flora Kalish, Peter Vandenabeele, Karl G Sylvester, Ronald J Wong, David K Stevenson
BACKGROUND: Severe hemolytic disease of the newborn leads to the release of pro-oxidative free heme (FH). Heme oxygenase (HO) is primarily responsible for detoxifying FH. OBJECTIVE: To investigate the protective effects of HO in a model of heme overload. METHODS: For in vitro studies, NIH3T3 HO-1-luc cells were incubated with 10, 30, or 60 µM FH or methemalbumin (MHA). HO-1 promoter activity was assessed 3, 6, and 24 h after treatment. Cell survival was indexed by viability assays...
September 20, 2017: Neonatology
https://www.readbyqxmd.com/read/28898950/patal-bisphenol-a-exposure-affects-fetal-length-growth-by-maternal-glutathione-transferase-polymorphisms-and-neonatal-exposure-affects-child-volume-growth-by-sex-from-multiregional-prospective-birth-cohort-moceh-study
#3
Yu Min Lee, Yun-Chul Hong, Mina Ha, Yangho Kim, Hyesook Park, Hae Soon Kim, Eun-Hee Ha
We aimed to evaluate the effects of Bisphenol-A (BPA) exposure on fetal/child growth from the fetal period to 72months after birth. The MOCEH study is a prospective birth cohort study in Korea. A total of 788 mother-child pairs in the third trimester and 366 pairs in the neonatal period who completed BPA assessment and fetal/children growth outcomes were included. BPA assessments were conducted twice in the third trimester using maternal urines and the neonatal period using neonatal urines. Fetal femur length was measured with ultrasound, and estimated-fetal-weight was calculated...
September 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28898944/associations-between-urinary-total-arsenic-levels-fetal-development-and-neonatal-birth-outcomes-a-cohort-study-in-taiwan
#4
Kai-Wei Liao, Chia-Huang Chang, Ming-Song Tsai, Ling-Chu Chien, Ming-Yi Chung, I-Fang Mao, Yen-An Tsai, Mei-Lien Chen
BACKGROUND: Arsenic exposure is a global health concern. Several studies have focused on chronic arsenic exposure in adults; however, limited data are available regarding the potential adverse effects of prenatal exposure on fetuses and neonates. OBJECTIVES: To assess which time point maternal arsenic exposure may influence the fetus during pregnancy and birth outcomes. METHODS: In this study, total arsenic concentrations were analyzed in urine samples collected from 130 women with singleton pregnancies (22-45years old) in Taiwan from March to December of 2010...
September 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28894213/ultraviolet-radiation-induced-production-of-nitric-oxide-a-multi-cell-and-multi-donor-analysis
#5
Graham Holliman, Donna Lowe, Howard Cohen, Sarah Felton, Ken Raj
Increasing evidence regarding positive effects of exposure to sunlight has led to suggestions that current advice may be overly weighted in favour of avoidance. UV-A has been reported to lower blood pressure, possibly through nitric oxide (NO) production in skin. Here, we set out to investigate effects of UV-A and solar-simulated radiation on the potential source of dermal NO, the effective doses and wavelengths, the responsiveness of different human skin cells, the magnitude of inter-individual differences and the potential influence of age...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28889270/uranium-and-the-central-nervous-system-what-should-we-learn-from-recent-new-tools-and-findings
#6
Céline Dinocourt
Increasing industrial and military use of uranium has led to environmental pollution, which may result in uranium reaching the brain and causing cerebral dysfunction. A recent literature review has discussed data published over the last 10 years on uranium and its effects on brain function (Dinocourt C, Legrand M, Dublineau I, et al., Toxicology 337:58-71, 2015). New models of uranium exposure during neonatal brain development and the emergence of new technologies (omics and epigenetics) are of value in identifying new specific targets of uranium...
2017: Advances in Neurobiology
https://www.readbyqxmd.com/read/28883097/survival-of-very-preterm-infants-admitted-to-neonatal-care-in-england-2008-2014-time-trends-and-regional-variation
#7
Shalini Santhakumaran, Yevgeniy Statnikov, Daniel Gray, Cheryl Battersby, Deborah Ashby, Neena Modi
OBJECTIVE: To analyse survival trends and regional variation for very preterm infants admitted to neonatal care. SETTING: All neonatal units in England. PATIENTS: Infants born at 22(+0)-31(+6) weeks(+days)gestational age (GA) over 2008-2014 and admitted to neonatal care; published data for admitted infants 22(+0)-25(+6) weeks(+days) GA in 1995 and 2006, and for live births at 22(+0)-31(+6) weeks(+days) GA in 2013. METHODS: We obtained data from the National Neonatal Research Database...
September 7, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28880894/in-ovo-and-dietary-administration-of-oligosaccharides-extracted-from-palm-kernel-cake-influence-general-health-of-pre-and-neonatal-broiler-chicks
#8
Mohammad Faseleh Jahromi, Parisa Shokryazdan, Zulkifli Idrus, Rohollah Ebrahimi, Juan Boo Liang
Palm kernel cake (PKC) is the main byproduct from the palm oil industry in several tropical countries that contains considerable amounts of oligosaccharide. We earlier demonstrated beneficial prebiotic effects of oligosaccharides extract of PKC (OligoPKC) in starter and finisher broiler birds. This study was envisaged to elucidate the effects of in ovo and/or oral administration of the OligoPKC on prenatal and post-hatched broiler chicks. A total of 140 broiler (Cobb500) eggs were randomly divided into two groups (n = 70 each), and on day 12 of incubation, eggs in one group received in ovo injection of 0...
2017: PloS One
https://www.readbyqxmd.com/read/28799968/core-temperature-monitoring-in-obstetric-spinal-anesthesia-using-an-ingestible-telemetric-sensor
#9
Leon du Toit, Dominique van Dyk, Ross Hofmeyr, Carl J Lombard, Robert A Dyer
BACKGROUND: Perioperative hypothermia may affect maternal and neonatal outcomes after obstetric spinal anesthesia. Core temperature is often poorly monitored during spinal anesthesia, due to the lack of an accurate noninvasive core temperature monitor. The aim of this study was to describe core temperature changes and temperature recovery during spinal anesthesia for elective cesarean delivery. We expected that obstetric spinal anesthesia would be associated with a clinically relevant thermoregulatory insult (core temperature decrease >1...
August 9, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28791666/clinical-pharmacokinetics-and-pharmacodynamics-of-micafungin
#10
REVIEW
Roeland E Wasmann, Eline W Muilwijk, David M Burger, Paul E Verweij, Catherijne A Knibbe, Roger J Brüggemann
Micafungin is a selective inhibitor of the synthesis of fungal 1,3-β-D-glucan, an essential component of the fungal cell wall. It is available as a powder for infusion only and is registered for the treatment of invasive and esophageal candidiasis in addition to prophylaxis of Candida infections in both adults and children. Average exposure after a single intravenous 100 mg dose in healthy adults is 133 mg h/L. Both exposure and maximum plasma concentration show linear dose proportional pharmacokinetics (PK) over a 0...
August 8, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28789705/impact-of-intrapartum-antimicrobial-prophylaxis-upon-the-intestinal-microbiota-and-the-prevalence-of-antibiotic-resistance-genes-in-vaginally-delivered-full-term-neonates
#11
Alicja Nogacka, Nuria Salazar, Marta Suárez, Christian Milani, Silvia Arboleya, Gonzalo Solís, Nuria Fernández, Lidia Alaez, Ana M Hernández-Barranco, Clara G de Los Reyes-Gavilán, Marco Ventura, Miguel Gueimonde
BACKGROUND: Disturbances in the early establishment of the intestinal microbiota may produce important implications for the infant's health and for the risk of disease later on. Different perinatal conditions may be affecting the development of the gut microbiota. Some of them, such as delivery mode or feeding habits, have been extensively assessed whereas others remain to be studied, being critical to identify their impact on the microbiota and, if any, to minimize it. Antibiotics are among the drugs most frequently used in early life, the use of intrapartum antimicrobial prophylaxis (IAP), present in over 30% of deliveries, being the most frequent source of exposure...
August 8, 2017: Microbiome
https://www.readbyqxmd.com/read/28782587/prolonged-ketamine-exposure-induces-increased-activity-of-the-glun2b-containing-n-methyl-d-aspartate-receptor-in-the-anterior-cingulate-cortex-of-neonatal-rats
#12
Saurabh S Kokane, Kerui Gong, Jianhui Jin, Qing Lin
Ketamine is a commonly used anesthetic among pediatric patients due to its high efficacy. However, it has been demonstrated by several preclinical studies that, widespread accelerated programmed death of neurons (neuroapoptosis) occurs due to prolonged or repeated exposure to ketamine specifically in the neonatal brain. Therefore, an emphasis on understanding the molecular mechanisms underlying this selective vulnerability of the neonatal brain to ketamine-induced neuroapoptosis becomes important in order to identify potential therapeutic targets, which would help prevent or at least ameliorate this neuroapoptosis...
August 4, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28780500/perinatal-risk-factors-for-neonatal-encephalopathy-an-unmatched-case-control-study
#13
Cally J Tann, Margaret Nakakeeto, Barbara A Willey, Margaret Sewegaba, Emily L Webb, Ibby Oke, Emmanuel Derek Mutuuza, Donald Peebles, Margaret Musoke, Kathryn A Harris, Neil J Sebire, Nigel Klein, Jennifer J Kurinczuk, Alison M Elliott, Nicola J Robertson
OBJECTIVE: Neonatal encephalopathy (NE) is the third leading cause of child mortality. Preclinical studies suggest infection and inflammation can sensitise or precondition the newborn brain to injury. This study examined perinatal risks factor for NE in Uganda. DESIGN: Unmatched case-control study. SETTING: Mulago National Referral Hospital, Kampala, Uganda. METHODS: 210 term infants with NE and 409 unaffected term infants as controls were recruited over 13 months...
August 5, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28771555/neonates-responses-to-repeated-exposure-to-a-still-face
#14
Emese Nagy, Karen Pilling, Rachel Watt, Attila Pal, Hajnalka Orvos
AIM: The main aims of the study were to examine whether human neonates' responses to communication disturbance modelled by the still-face paradigm were stable and whether their responses were affected by their previous experience with the still-face paradigm. METHODS: The still face procedure, as a laboratory model of interpersonal stress, was administered repeatedly, twice, to 84 neonates (0 to 4 day olds), with a delay of an average of 1.25 day. RESULTS: Frame-by-frame analysis of the frequency and duration of gaze, distressed face, crying, sleeping and sucking behaviours showed that the procedure was stressful to them both times, that is, the still face effect was stable after repeated administration and newborns consistently responded to such nonverbal violation of communication...
2017: PloS One
https://www.readbyqxmd.com/read/28760642/galantamine-administration-reduces-reactive-astrogliosis-and-upregulates-the-anti-oxidant-enzyme-catalase-in-rats-submitted-to-neonatal-hypoxia-ischemia
#15
F K Odorcyk, F Nicola, L E Duran-Carabali, F Figueiró, J Kolling, A Vizuete, E L Konrath, C A Gonçalves, A T S Wyse, C A Netto
Neonatal hypoxia ischemia (HI) plays a role in the etiology of several neurological pathologies and causes severe sequelae. Acetylcholine is a neurotransmitter in the central nervous system and cholinesterase inhibitors have demonstrated a positive action over HI induced deficits. In order to evaluate the effects of pre and post-hypoxia administrations of galantamine, a cholinesterase inhibitor, in a model of perinatal HI, Wistar rats in the post-natal day 7 (PND7) were subjected to a combination of unilateral occlusion of the right carotid artery with the exposure to a 1h hypoxia...
July 29, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28722828/bioaccumulation-based-silver-nanoparticle-toxicity-in-daphnia-magna-and-maternal-impacts
#16
Sunandan Pakrashi, Cheng Tan, Wen-Xiong Wang
In the present study, we tested whether bioaccumulation in specific tissues of Daphnia magna could explain silver nanoparticle (AgNP) toxicity. Daphnids were exposed to different concentrations of well-suspended AgNPs and AgNO3 . The accumulations of Ag in the whole body, gut, and nongut tissues, as well as the mortality of daphnids, were recorded over a period of 7 d. Regression analysis showed a higher degree of positive correlation between the concentration of Ag in the nongut tissues than gut tissues and the mortality of daphnids...
July 19, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28711809/assessing-the-impact-of-hazardous-waste-on-children-s-health-the-exposome-paradigm
#17
D A Sarigiannis
Assessment of the health impacts related to hazardous waste is a major scientific challenge with multiple societal implications. Most studies related to associations between hazardous waste and public health do not provide established of mechanistic links between environmental exposure and disease burden, resulting in ineffective waste management options. The exposome concept comes to overhaul the nature vs. nurture paradigm and embraces a world of dynamic interactions between environmental exposures, endogenous exposures and genetic expression in humans...
October 2017: Environmental Research
https://www.readbyqxmd.com/read/28711003/environmentally-relevant-concentrations-of-herbicides-impact-non-target-species-at-multiple-sublethal-endpoints
#18
Simone Hasenbein, Jade Peralta, Sharon P Lawler, Richard E Connon
There is concern over herbicide exposure effects on aquatic primary production and zooplankton as herbicides are found in aquatic ecosystems at concentrations potentially toxic to phytoplankton. We first aimed to determine the effect concentrations (growth inhibition) and mixture interactions of the herbicides diuron (0.5 to 50μg/L) and hexazinone (0.5 to 40μg/L) on the green algae Pseudokirchneriella subcapitata. Secondly, we evaluated chronic effects on Daphnia magna that were periodically fed on P. subcapitata that had been exposed to low, medium, and high concentrations...
December 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28702493/data-on-the-effect-of-sex-on-the-size-cellular-content-and-neuronal-density-of-the-developing-brain-in-mice-exposed-to-isoflurane-and-carbon-monoxide
#19
Li Wang, Aili Wang, William W Supplee, Kayla Koffler, Ying Cheng, Zenaide M N Quezado, Richard J Levy
The data presented here detail the changes in size, cellular content, and neuronal density of the developing brain over time with respect to sex in C57Bl/6 mice following neonatal exposure to isoflurane, carbon monoxide, or their combination. Specifically, brain weight- and brain volume-to-body weight ratios are presented, representative immunoblots of whole brain cell-specific protein content are depicted, and quantification of the number of neurons in the primary somatosensory cortex and CA3 region of the hippocampus are shown...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28695774/regulatory-risk-assessments-is-there-a-need-to-reduce-uncertainty-and-enhance-robustness-update-on-propylparaben-in-relation-to-its-eu-regulatory-status
#20
D Snodin
Over 10 years ago, propylparaben (propyl- p-hydroxybenzoate; PP) was withdrawn as a permitted food preservative in the EU based entirely on findings reported in a single dietary study in juvenile rats claiming to show adverse effects on male reproductive parameters [Oishi S. Effects of propyl paraben on the male reproductive system. Food Chem Toxicol 2002; 40(12): 1807 -1813]. Subsequent data reviews have cast serious doubt on the validity of the Oishi results, mainly in relation to aberrant concurrent-control values, and in two further comprehensive studies using neonatal and juvenile rats there were no adverse effects in males at oral doses up to 1000 mg/kg/day...
January 1, 2017: Human & Experimental Toxicology
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