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Developmental reflex

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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/28518104/neurodevelopmental-reflex-testing-in-neonatal-rat-pups
#2
Antoinette T Nguyen, Edward A Armstrong, Jerome Y Yager
Neurodevelopmental reflex testing is commonly used in clinical practice to assess the maturation of the nervous system. Neurodevelopmental reflexes are also referred to as primitive reflexes. They are sensitive and consistent with later outcomes. Abnormal reflexes are described as an absence, persistence, reappearance, or latency of reflexes, which are predictive indices of infants that are at high risk for neurodevelopmental disorders. Animal models of neurodevelopmental disabilities, such as cerebral palsy, often display aberrant developmental reflexes, as would be observed in human infants...
April 24, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28511298/-influence-of-aluminum-chloride-exposure-on-embryonic-development-of-zebrafish-and-neurobehavior-of-juvenile-fish
#3
J P Chen, N Shang, K H He, L Zhang, Q Niu, Q L Zhang
Objective: To investigate the influence of aluminum chloride (AlCl(3)) solution on the embryon-ic development of zebrafish and neurobehavior of juvenile fish. Methods: The embryos of zebrafishat 6 hours after fertilization were exposed to AlCl(3) solution at a concentration of 0, 55.0, 60.5, 66.6, 73.5, 80.5, or 100.0 mg/L, and embryonic hatching rates at 48 and 72 hours after fertilization were calculated. The embryos of zebrafishat 6 hours after fertilization were exposed to AlCl(3) solution at a concentration of 0, 60...
March 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28476907/congenital-talipes-equinovarus-and-congenital-vertical-talus-secondary-to-sacral-agenesis
#4
Jonathan James Hyett Bray, Sebastien Crosswell, Rick Brown
Sacral agenesis is a rare congenital defect which is associated with foot deformities such as congenital talipes equinovarus (CTEV) and less commonly congenital vertical talus (CVT). We report a 3-year-old Caucasian girl who was born with right CTEV and left CVT secondary to sacral agenesis. Her right foot was managed with a Ponseti casting method at 2 weeks, followed by an Achilles tenotomy at 4 months. The left foot was initially managed with a nocturnal dorsi-flexion splint. Both feet remained resistant and received open foot surgery at 10 months producing plantigrade feet with neutral hindfeet...
May 5, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28476693/oxytocin-administration-during-spontaneous-labor-guidelines-for-clinical-practice-chapter%C3%A2-6-fetal-neonatal-and-pediatric-risks-and-adverse-effects-of-using-oxytocin-augmentation-during-spontaneous-labor
#5
https://www.readbyqxmd.com/read/28464876/prenatal-chlorpyrifos-leads-to-autism-like-deficits-in-c57bl6-j-mice
#6
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/28392009/genitourinary-and-gastrointestinal-co-morbidities-in-children-the-role-of-neural-circuits-in-regulation-of-visceral-function
#7
REVIEW
A P Malykhina, K E Brodie, D T Wilcox
OBJECTIVE: Pediatric lower urinary tract dysfunction (LUTD) is a common problem in childhood. Lower urinary tract symptoms in children include overactive bladder, voiding postponement, stress incontinence, giggle incontinence, and dysfunctional voiding. Gastrointestinal co-morbidities, including constipation or fecal incontinence, are commonly associated with lower urinary tract (LUT) symptoms in children, often reaching 22-34%. This review summarized the potential mechanisms underlying functional lower urinary and gastrointestinal co-morbidities in children...
June 15, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28343847/global-developmental-delay-and-intellectual-disability-associated-with-a-de-novo-top2b-mutation
#8
Ching-Wan Lam, Wai-Lan Yeung, Chun-Yiu Law
BACKGROUND: More than 100 genes had been identified for autism spectrum disorder (ASD). With the advancement of whole-exome/genome sequencing (WES/WGS), disease-causing gene in ASD can be identified in a holistic and unbiased approach. The identification of new ASD genes can further explore the molecular basis of ASD. METHODS: We report a 15yo girl with developmental delay, intellectual disability, hypotonia, microcephaly and autistic feature. She first presented at 6months old with primitive response to noise...
March 23, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28341233/neonatal-reflexes-and-behavior-in-hypertensive-rats-of-isiah-strain
#9
Diana S Ragaeva, Maria A Tikhonova, Olga M Petrova, Tatjana N Igonina, Irina N Rozkova, Eugeny Yu Brusentsev, Tamara G Amstislavskaya, Sergey Ya Amstislavsky
Hypertension is one of the most common diseases in humans, and there is a special concern on the consequences of maternal hypertensive conditions for the health of newborns. An inherited stress-induced arterial hypertension (ISIAH) rat strain has been selected but only a few studies have addressed behavior in these rats. Body weight, neurodevelopmental reflexes, and neuronal density in the hippocampus were compared in ISIAH and normotensive WAG rats during their suckling period. Systolic and diastolic blood pressure (SBP, DBP), adult rat performance in the open field (OF), elevated plus maze (EPM), and novel object recognition (NOR) tests were evaluated at the age of 12-14weeks old...
June 1, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28332011/delayed-otolith-development-does-not-impair-vestibular-circuit-formation-in-zebrafish
#10
Richard Roberts, Jeffrey Elsner, Martha W Bagnall
What is the role of normally patterned sensory signaling in development of vestibular circuits? For technical reasons, including the difficulty in depriving animals of vestibular inputs, this has been a challenging question to address. Here we take advantage of a vestibular-deficient zebrafish mutant, rock solo (AN66) , in order to examine whether normal sensory input is required for formation of vestibular-driven postural circuitry. We show that the rock solo (AN66) mutant is a splice site mutation in the secreted glycoprotein otogelin (otog), which we confirm through both whole genome sequencing and complementation with an otog early termination mutant...
June 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/28330826/the-influence-of-methamphetamine-on-maternal-behavior-and-development-of-the-pups-during-the-neonatal-period
#11
Mária Ševčíková, Ivana Hrebíčková, Eva Macúchová, Romana Šlamberová
Since it enters breast milk, methamphetamine (MA) abuse during lactation can not only affect the quality of maternal behavior but also postnatal development of pups. The aim of the present study was to examine the effect of injected MA (5mg/kg) on maternal behavior of rats and the differences in postnatal development, during postnatal days (PD) 1-11, of pups when the pups were directly exposed (i.e., injected) to MA or received MA indirectly via breast milk. Maternal behavior was examined using observation test (PD 1-22) and pup retrieval test (PD 1-12)...
March 19, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28241263/bridging-knowledge-gaps-to-understand-how-zika-virus-exposure-and-infection-affect-child-development
#12
Bill G Kapogiannis, Nahida Chakhtoura, Rohan Hazra, Catherine Y Spong
Importance: The Zika virus (ZIKV) epidemic has profoundly affected the lives of children and families across the Americas. As the number of children born with ZIKV-related complications continues to grow, the long-term developmental trajectory for these children and the effect on their families remains largely unknown. In September 2016, the Eunice Kennedy Shriver National Institute of Child Health and Human Development and partner National Institutes of Health institutes convened a workshop to develop a research agenda to improve the evaluation, monitoring, and management of neonates, infants, or children affected by ZIKV and its complications...
May 1, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28182485/-wolves-canis-lupus-and-dogs-canis-familiaris-differ-in-following-human-gaze-into-distant-space-but-respond-similar-to-their-packmates-gaze-correction-to-werhahn-et-al-2016
#13
(no author information available yet)
Reports an error in "Wolves (Canis lupus) and dogs (Canis familiaris) differ in following human gaze into distant space but respond similar to their packmates' gaze" by Geraldine Werhahn, Zsófia Virányi, Gabriela Barrera, Andrea Sommese and Friederike Range (Journal of Comparative Psychology, 2016[Aug], Vol 130[3], 288-298). In the article, the affiliations for the second and fifth authors should be Wolf Science Center, Ernstbrunn, Austria, and Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna/ Medical University of Vienna/University of Vienna...
February 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28168413/early-neurobehavioral-development-of-mice-lacking-endogenous-pacap
#14
Jozsef Farkas, Balazs Sandor, Andrea Tamas, Peter Kiss, Hitoshi Hashimoto, Andras D Nagy, Balazs D Fulop, Tamas Juhasz, Sridharan Manavalan, Dora Reglodi
Pituitary adenylate cyclase activating polypeptide (PACAP) is a multifunctional neuropeptide. In addition to its diverse physiological roles, PACAP has important functions in the embryonic development of various tissues, and it is also considered as a trophic factor during development and in the case of neuronal injuries. Data suggest that the development of the nervous system is severely affected by the lack of endogenous PACAP. Short-term neurofunctional outcome correlates with long-term functional deficits; however, the early neurobehavioral development of PACAP-deficient mice has not yet been evaluated...
April 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28141712/significant-sleep-dysregulation-in-a-toddler-with-developmental-delay
#15
Martin T Stein, Judith Owens, Myles Abbott
Derrick's parents made an appointment with a new pediatrician for a second opinion about disordered sleep. Now 22-months old, he was evaluated at 18 months of age for developmental delay when he was found to have "a regulatory disorder associated with delays in language and motor development, hypotonia and significant sleep problems." The parents are now most concerned about his sleeping pattern. Prolonged sleep onset and frequent night awaking occur each night since 6-months of age. These problems are more severe in the past few months when he awakes screaming and cannot be settled...
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28061376/visual-orienting-and-attention-deficits-in-5-and-10-month-old-preterm-infants
#16
Shannon Ross-Sheehy, Sammy Perone, Kelsi L Macek, Bret Eschman
Cognitive outcomes for children born prematurely are well characterized, including increased risk for deficits in memory, attention, processing speed, and executive function. However, little is known about deficits that appear within the first 12 months, and how these early deficits contribute to later outcomes. To probe for functional deficits in visual attention, preterm and full-term infants were tested at 5 and 10 months with the Infant Orienting With Attention task (IOWA; Ross-Sheehy, Schneegans and Spencer, 2015)...
January 3, 2017: Infant Behavior & Development
https://www.readbyqxmd.com/read/28034711/ventilatory-and-chemoreceptor-responses-to-hypercapnia-in-neonatal-rats-chronically-exposed-to-moderate-hyperoxia
#17
Ryan W Bavis, Ke-Yong Li, Kathryn J DeAngelis, Ryan J March, Josefine A Wallace, Sarah Logan, Robert W Putnam
Rats reared in hyperoxia hypoventilate in normoxia and exhibit progressive blunting of the hypoxic ventilatory response, changes which are at least partially attributed to abnormal carotid body development. Since the carotid body also responds to changes in arterial CO2/pH, we tested the hypothesis that developmental hyperoxia would attenuate the hypercapnic ventilatory response (HCVR) of neonatal rats by blunting peripheral and/or central chemoreceptor responses to hypercapnic challenges. Rats were reared in 21% O2 (Control) or 60% O2 (Hyperoxia) until studied at 4, 6-7, or 13-14days of age...
March 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/27928634/pressurized-wideband-acoustic-stapedial-reflex-thresholds-normal-development-and-relationships-to-auditory-function-in-infants
#18
Lisa L Hunter, Douglas H Keefe, M Patrick Feeney, Denis F Fitzpatrick
This study analyzed effects of pressurization on wideband acoustic stapedial-muscle reflex (ASR) tests in infants cared for in normal newborn (NN) and neonatal intensive care units (NICU). Effects of hearing-screening outcomes on ASR threshold measurements were also evaluated, and a subsequent longitudinal study established normative threshold ranges over the first year after birth. An initial experiment compared thresholds in newborns measured at ambient pressure in the ear canal and at the tympanometric peak pressure...
February 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/27918171/the-complexities-of-power-in-feminist-multicultural-psychotherapy-supervision
#19
Alexis V Arczynski, Susan L Morrow
The goal of the present study was to understand how current feminist multicultural supervisors understand and implement their feminist multicultural principles into clinical supervision. We addressed this aim by answering the following research question: How do self-identified feminist multicultural psychotherapy supervisors conceptualize and practice feminist supervision that is explicitly multicultural? The perspectives of 14 participant supervisors were obtained by using semistructured initial interviews, follow-up interviews, and feedback interviews and were investigated via a feminist constructivist grounded theory design and analysis...
March 2017: Journal of Counseling Psychology
https://www.readbyqxmd.com/read/27908562/ontogeny-of-sensorimotor-gating-and-short-term-memory-processing-throughout-the-adolescent-period-in-rats
#20
Anja A Goepfrich, Chris M Friemel, Sabina Pauen, Miriam Schneider
Adolescence and puberty are highly susceptible developmental periods during which the neuronal organization and maturation of the brain is completed. The endocannabinoid (eCB) system, which is well known to modulate cognitive processing, undergoes profound and transient developmental changes during adolescence. With the present study we were aiming to examine the ontogeny of cognitive skills throughout adolescence in male rats and clarify the potential modulatory role of CB1 receptor signalling. Cognitive skills were assessed repeatedly every 10th day in rats throughout adolescence...
November 19, 2016: Developmental Cognitive Neuroscience
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