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Neonatal behavior

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https://www.readbyqxmd.com/read/28527693/two-hit-model-of-schizophrenia-induced-by-neonatal-immune-activation-and-peripubertal-stress-in-rats-study-of-sex-differences-and-brain-oxidative-alterations
#1
Aline Santos Monte, Bruna Stefânia Ferreira Mello, Vládia Célia Moreira Borella, Tatiane da Silva Araujo, Francisco Eliclécio Rodrigues da Silva, Francisca Cléa F de Sousa, Antônio Carlos Pinheiro de Oliveira, Clarissa Severino Gama, Mary V Seeman, Silvânia Maria Mendes Vasconcelos, David Freitas De Lucena, Danielle Macêdo
Schizophrenia is considered to be a developmental disorder with distinctive sex differences. Aiming to simulate the vulnerability of the third trimester of human pregnancy to the developmental course of schizophrenia, an animal model was developed, using neonatal poly(I:C) as a first-hit, and peripubertal stress as a second-hit, i.e. a two-hit model. Since, to date, there have been no references to sex differences in the two-hit model, our study sought to determine sex influences on the development of behavior and brain oxidative change in adult rats submitted to neonatal exposure to poly(I:C) on postnatal days 5-7 as well as peripubertal unpredictable stress (PUS)...
May 17, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28527272/-does-corticosteroid-treatment-during-the-pre-and-postnatal-periods-affect-the-neurodevelopmental-outcome-of-premature-newborns
#2
Marita Lardón, José Uberos, Eduardo Narbona
INTRODUCTION: Glucocorticoids, widely used in the perinatal period, may be associated with adverse neurodevelopmental effects. OBJECTIVES: To analyze neurodevelopmental outcomes in a cohort of very low birth weight newborns treated with antenatal and/or postnatal corticosteroids. MATERIALS AND METHODS: This was a prospective cohort study in which we included all very low birth weight babies admitted to the neonatal intensive care unit of a tertiary hospital between 2008 and 2013...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527264/-adverse-drug-reactions-in-neonates-hospitalized-in-neonatal-intensive-care-units-in-barranquilla-colombia
#3
Roxana De Las Salas, Daniela Díaz-Agudelo
INTRODUCTION: The appearance of adverse drug reactions in neonates is an important issue due to the lack of drug safety data. OBJECTIVE: To identify the behavior of adverse drug reactions (ADR) in hospitalized neonates at two intensive care units in Barranquilla, Colombia. MATERIALS AND METHODS: We conducted a cross-sectional prospective descriptive study based on patientcentered intensive pharmacosurveillance. We followed up and monitored the appearance of ADRs for six months...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28523564/prenatal-and-early-postnatal-environmental-enrichment-reduce-acute-cell-death-and-prevent-neurodevelopment-and-memory-impairments-in-rats-submitted-to-neonatal-hypoxia-ischemia
#4
L E Durán-Carabali, D M Arcego, F K Odorcyk, L Reichert, J L Cordeiro, E F Sanches, L D Freitas, C Dalmaz, A Pagnussat, C A Netto
Environmental enrichment (EE) is an experimental strategy to attenuate the negative effects of different neurological conditions including neonatal hypoxia ischemia encephalopathy (HIE). The aim of the present study was to investigate the influence of prenatal and early postnatal EE in animals submitted to neonatal HIE model at postnatal day (PND) 3. Wistar rats were housed in EE or standard conditions (SC) during pregnancy and lactation periods. Pups of both sexes were assigned to one of four experimental groups, considering the early environmental conditions and the injury: SC-Sham, SC-HIE, EE-sham, and EE-HIE...
May 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28522766/ontogeny-of-myosin-isoform-expression-and-prehensile-function-in-the-tail-of-the-gray-short-tailed-opossum-monodelphis-domestica
#5
Dylan R Thomas, Brad A Chadwell, Gary R Walker, Julio E Budde, John L VandeBerg, Michael T Butcher
Terrestrial opossums use their semi-prehensile tail for grasping nesting materials as opposed to arboreal maneuvering. We relate the development of this adaptive behavior with ontogenetic changes in myosin heavy chain (MHC) isoform expression from 21 days to adulthood. Monodelphis domestica is expected to demonstrate a progressive ability to flex the distal tail up to age 7 months, when it should exhibit routine nest construction. We hypothesize that juvenile stages (3-7 months) will be characterized by retention of the neonatal isoform (MHC-Neo), along with predominant expression of fast MHC-2X and 2B, which will transition into greater MHC-1β and 2A isoform content as development progresses...
May 18, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28514381/-complications-and-long-term-results-of-delayed-esophagoezophagostomy-for-esophageal-atresia
#6
A Yu Razumovsky, A B Alkhasov, O G Mokrushina, M A Chundokova, N V Kulikova, A G Gebekov, S A Gebekova
AIM: To evaluate complications and long-term results of delayed esophagoesophagostomy in children with esophageal atresia (EA). MATERIAL AND METHODS: 165 EA children were operated at the Filatov Municipal Children's Hospital #13 for the period 2006-2016. Primary esophageal anastomosis was performed in 136 (82.4%) children with tracheoesophageal fistula. In 5 (3%) neonates with non-fistulous EA esophago- and gastrostomy were made for further coloesophagoplasty. Other 24 (14...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28510766/detection-of-3-3-dichlorobiphenyl-in-human-maternal-plasma-and-its-effects-on-axonal-and-dendritic-growth-in-primary-rat-neurons
#7
Sunjay Sethi, Kimberly P Keil, Hao Chen, Keri Hayakawa, Xueshu Li, Yanping Lin, Hans-Joachim Lehmler, Birgit Puschner, Pamela J Lein
3,3'-Dichlorobiphenyl (PCB 11), a byproduct of pigment production, is increasingly detected in environmental samples. While more highly chlorinated PCB congeners are known developmental neurotoxicants, nothing is known about the potential developmental neurotoxicity of PCB 11. To address this critical data gap, we measured PCB 11 levels in human maternal plasma and quantified the effects of PCB 11 and its major metabolites on morphometric parameters of neuronal connectivity in cultured primary neurons. Mass spectrometry analyses of plasma from 241 pregnant women enrolled in the MARBLES study (University of California, Davis) detected PCB 11 in all samples at concentrations ranging from 0...
May 16, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28505363/impact-of-high-iron-intake-on-cognition-and-neurodegeneration-in-humans-and-in-animal-models-a-systematic-review
#8
Sonal Agrawal, Kiersten L Berggren, Eileen Marks, Jonathan H Fox
Accumulation of brain iron is linked to aging and protein-misfolding neurodegenerative diseases. High iron intake may influence important brain health outcomes in later life. The aim of this systematic review was to examine evidence from animal and human studies of the effects of high iron intake or peripheral iron status on adult cognition, brain aging, and neurodegeneration. MEDLINE, Scopus, CAB Abstracts, the Cochrane Central Register of Clinical Trials, and OpenGrey databases were searched. Studies investigating the effect of elevated iron intake at all postnatal life stages in mammalian models and humans on measures of adult brain health were included...
May 15, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28504197/intravenous-injection-of-umbilical-cord-derived-mesenchymal-stromal-cells-attenuates-reactive-gliosis-and-hypomyelination-in-a-neonatal-intraventricular-hemorrhage-model
#9
Takeo Mukai, Yuka Mori, Takahisa Shimazu, Atsuko Takahashi, Hajime Tsunoda, Satoru Yamaguchi, Shigeru Kiryu, Arinobu Tojo, Tokiko Nagamura-Inoue
Intraventricular hemorrhage (IVH) is a frequent complication of preterm newborns, resulting in cerebral palsy and cognitive handicap as well as hypoxic ischemic encephalopathy and periventricular leukomalacia. In this study, we investigated the restorative effect on neonatal IVH by umbilical cord-derived mesenchymal stromal cells (UC-MSCs) cultured in serum-free medium (RM medium) for clinical application. UC-MSCs were cultured with αMEM medium supplemented with FBS or RM. A neonatal IVH mouse model at postnatal day 5 was generated by intraventricular injection of autologous blood, and mice were intravenously administered 1×10(5) UC-MSCs two days after IVH...
May 11, 2017: Neuroscience
https://www.readbyqxmd.com/read/28497058/impact-of-an-intensive-perinatal-handwashing-promotion-intervention-on-maternal-handwashing-behavior-in-the-neonatal-period-findings-from-a-randomized-controlled-trial-in-rural-bangladesh
#10
Pavani Kalluri Ram, Sharifa Nasreen, Kelly Kamm, Jelena Allen, Swapna Kumar, Mohammad Anisur Rahman, K Zaman, Shams El Arifeen, Stephen P Luby
One-quarter of neonatal deaths are attributed to infections. Maternal handwashing with soap may prevent neonatal sepsis. We examined impact of intensive handwashing promotion on handwashing behavior of mothers of neonates. In Matlab, Bangladesh, we randomly allocated pregnant women at 28-32 weeks' gestation to intensive handwashing promotion or control. Behavior change communicators used a participatory approach to motivate maternal handwashing with soap and provided soap and handwashing stations. In the neonatal period, we observed soap and water at handwashing places and, at the end of the neonatal period, we estimated impact on maternal handwashing by structured observation...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28495306/long-term-effects-of-enriched-environment-following-neonatal-hypoxia-ischemia-on-behavior-bdnf-and-synaptophysin-levels-in-rat-hippocampus-effect-of-combined-treatment-with-g-csf
#11
Myrsini Griva, Rosa Lagoudaki, Olga Touloumi, Evangelia Nousiopoulou, Filippos Karalis, Thomas Georgiou, Georgia Kokaraki, Constantina Simeonidou, Despina A Tata, Evangelia Spandou
Increasing evidence shows that exposure to an enriched environment (EE) is neuroprotective in adult and neonatal animal models of brain ischemia. However, the mechanisms underlying this effect remain unclear. The aim of the current study was to investigate whether post-weaning EE would be effective in preventing functional deficits and brain damage by affecting markers of synaptic plasticity in a neonatal rat model of hypoxia-ischemia (HI). We also examined the possibility that granulocyte-colony stimulating factor (G-CSF), a growth factor with known neuroprotective effects in a variety of experimental brain injury models, combined with EE stimulation could enhance the potential beneficial effect of EE...
May 8, 2017: Brain Research
https://www.readbyqxmd.com/read/28493821/multicentric-studies-of-the-fetal-neurobehavior-by-kanet-test
#12
Asim Kurjak, Panos Antsaklis, Milan Stanojevic, Radu Vladareanu, Simona Vladareanu, Raul Moreira Neto, Lara Spalldi Barisic, Selma Porovic, Taib Delic
Assessment of fetal neurobehavior and detection of neurological impairment prenatally has been a great challenge in perinatal medicine. The evolution of four-dimensional (4D) ultrasound not only enabled a better visualization of fetal anatomy but also allowed the study of fetal behavior in real time. Kurjak Antenatal Neurodevelopmental Test (KANET) was developed for the assessment of fetal neurobehavior and the detection of neurological disorders, based on the assessment of the fetus by application of 4D ultrasound in the same way that a neonate is assessed postnatally...
May 11, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28489890/unmasking-inequalities-sub-national-maternal-and-child-mortality-data-from-two-urban-slums-in-lagos-nigeria-tells-the-story
#13
Erin Anastasi, Ekanem Ekanem, Olivia Hill, Agnes Adebayo Oluwakemi, Oluwatosin Abayomi, Andrea Bernasconi
INTRODUCTION: Nigeria has one of the highest maternal mortality ratios in the world as well as high perinatal mortality. Unfortunately, the country does not have the resources to assess this critical indicator with the conventional health information system and measuring its progress toward the goal of ending preventable maternal deaths is almost impossible. Médecins Sans Frontières (MSF) conducted a cross-sectional study to assess maternal and perinatal mortality in Makoko Riverine and Badia East, two of the most vulnerable slums of Lagos...
2017: PloS One
https://www.readbyqxmd.com/read/28488903/versican-a-subdomain-is-required-for-its-adequate-function-in-dermal-development
#14
Sonoko Hatano, Naoko Nagai, Nobuo Sugiura, Jun Tsuchimoto, Zenzo Isogai, Koji Kimata, Akinobu Ota, Sivasundaram Karnan, Yoshitaka Hosokawa, Hideto Watanabe
Versican, a large chondroitin sulfate proteoglycan, serves as a structural macromolecule of the extracellular matrix and regulates cell behavior. We determined the function of versican in dermal development using Vcan(Δ3/Δ3) mutant mice expressing versican with deleted A-subdomain of the N-terminal G1 domain. The mutant versican showed a decreased hyaluronan-binding ability and failed to accumulate in the extracellular matrix. In the early developmental stage, Vcan(Δ3/Δ3) dermis showed a decrease in versican expression as compared with WT...
May 10, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28488186/functional-organization-of-the-medial-temporal-lobe-memory-system-following-neonatal-hippocampal-lesion-in-rhesus-monkeys
#15
Loïc J Chareyron, Pamela Banta Lavenex, David G Amaral, Pierre Lavenex
Hippocampal damage in adult humans impairs episodic and semantic memory, whereas hippocampal damage early in life impairs episodic memory but leaves semantic learning relatively preserved. We have previously shown a similar behavioral dissociation in nonhuman primates. Hippocampal lesion in adult monkeys prevents allocentric spatial relational learning, whereas spatial learning persists following neonatal lesion. Here, we quantified the number of cells expressing the immediate-early gene c-fos, a marker of neuronal activity, to characterize the functional organization of the medial temporal lobe memory system following neonatal hippocampal lesion...
May 9, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28487967/comparative-analysis-of-the-beneficial-effects-of-treadmill-training-and-electroacupuncture-in-a-rat-model-of-neonatal-hypoxia-ischemia
#16
Ha Neui Kim, Malk Eun Pak, Myung Jun Shin, Soo Yeon Kim, Yong Beom Shin, Young Ju Yun, Hwa Kyoung Shin, Byung Tae Choi
In the present study, we investigated whether treadmill training and electroacupuncture (EA) have autonomous or synergistic beneficial effects on deficits caused by neonatal hypoxia‑ischemia in Sprague-Dawley rats. For this purpose, rats subjected to hypoxia-ischemia underwent treadmill training and EA stimulation from 4 to 8 weeks of age. Conventional EA (CEA) and scalp EA (SEA) were delivered by electrical stimulation (2 Hz, 1 mA) at traditional acupoints and at the scalp to the primary motor area, respectively...
June 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28464876/prenatal-chlorpyrifos-leads-to-autism-like-deficits-in-c57bl6-j-mice
#17
Anat Lan, Michal Kalimian, Benjamin Amram, Ora Kofman
BACKGROUND: Children are at daily risk for exposure to organophosphate insecticides, of which the most common is chlorpyrifos (CPF). Exposure of pregnant women to CPF was linked to decreased birth weight, abnormal reflexes, reduction in IQ, as well as increased maternal reports of signs of pervasive developmental disorder. The aim of current study was to examine the long term effects of prenatal exposure to CPF in C57BL/6 J (B6) mice with specific focus on social and repetitive behavior...
May 2, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28464240/body-growth-and-life-history-in-wild-mountain-gorillas-gorilla-beringei-beringei-from-volcanoes-national-park-rwanda
#18
Jordi Galbany, Didier Abavandimwe, Meagan Vakiener, Winnie Eckardt, Antoine Mudakikwa, Felix Ndagijimana, Tara S Stoinski, Shannon C McFarlin
OBJECTIVES: Great apes show considerable diversity in socioecology and life history, but knowledge of their physical growth in natural settings is scarce. We characterized linear body size growth in wild mountain gorillas from Volcanoes National Park, Rwanda, a population distinguished by its extreme folivory and accelerated life histories. METHODS: In 131 individuals (0.09-35.26 years), we used non-invasive parallel laser photogrammetry to measure body length, back width, arm length and two head dimensions...
May 2, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28463420/behavioral-phenotyping-for-autism-spectrum-disorders-in-mice
#19
Yu-Chi Chang, Toby B Cole, Lucio G Costa
Autism spectrum disorder (ASD) represents a heterogeneous group of disorders characterized by alterations in three behavioral symptom domains: Social interactions, verbal and nonverbal communication, and repetitive behaviors. Increasing prevalence of ASD in recent years suggests that exposure to environmental toxicants may be critical in modulating etiology of this disease. As clinical diagnosis of autism still relies on behavioral evaluation, it is important to be able to assess similar behavioral traits in animal models, to provide biological plausibility of associations between environmental exposures and ASD...
May 2, 2017: Current Protocols in Toxicology
https://www.readbyqxmd.com/read/28459052/development-of-a-piglet-grimace-scale-to-evaluate-piglet-pain-using-facial-expressions-following-castration-and-tail-docking-a-pilot-study
#20
Abbie V Viscardi, Michelle Hunniford, Penny Lawlis, Matthew Leach, Patricia V Turner
Facial expressions are increasingly being used to assess pain in non-human species, including rodents, horses, and lambs. The development of these species-specific grimace scales has allowed for more rapid pain detection, which can lead to better animal welfare if intervention promptly occurs. For grimace scales to ever be used as a stand-alone measure of pain, it is important they correlate with established pain assessment tools, such as behavioral analysis. This preliminary study aimed to determine whether piglets exhibit pain grimacing and if these facial expressions correlate with their behavior...
2017: Frontiers in Veterinary Science
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