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Cord clamping

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https://www.readbyqxmd.com/read/28923985/randomised-trial-of-cord-clamping-and-initial-stabilisation-at-very-preterm-birth
#1
Lelia Duley, Jon Dorling, Angela Pushpa-Rajah, Sam J Oddie, Charles William Yoxall, Bernard Schoonakker, Lucy Bradshaw, Eleanor J Mitchell, Joe Anthony Fawke
OBJECTIVES: For very preterm births, to compare alternative policies for umbilical cord clamping and immediate neonatal care. DESIGN: Parallel group randomised (1:1) trial, using sealed opaque numbered envelopes. SETTING: Eight UK tertiary maternity units. PARTICIPANTS: 261 women expected to have a live birth before 32 weeks, and their 276 babies. INTERVENTIONS: Cord clamping after at least 2 min and immediate neonatal care with cord intact, or clamping within 20 s and immediate neonatal care after clamping...
September 18, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28921502/delayed-cord-clamping-and-cord-gas-analysis-at-birth
#2
Serena Xodo, Luigi Xodo, Vincenzo Berghella
Delayed cord clamping for at least 60 seconds in both term and preterm babies is a major recent change in clinical care. Delayed cord clamping has several effects on other possible interventions. One of these is the effect of delayed cord clamping on umbilical artery gas analysis. When indicated, umbilical artery gas analysis can safely be done either with early cord clamping, or, probably most of the times it is necessary, during delayed cord clamping with the cord still unclamped. Paired blood samples (one from the umbilical artery and one from the umbilical vein) can be taken from the pulsating and unclamped cord, immediately after birth, during delayed cord clamping, without any effect on either the accuracy of umbilical artery gas analysis or on the transfusion of blood through delayed cord clamping...
September 16, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28905384/heteromeric-%C3%AE-%C3%AE-%C3%A2-glycine-receptors-regulate-excitability-in-parvalbumin-expressing-dorsal-horn-neurons-through-phasic-and-tonic-glycinergic-inhibition
#3
M A Gradwell, K A Boyle, R J Callister, D I Hughes, B A Graham
The dorsal horn (DH) of the spinal cord is an important site for modality specific processing of sensory information and is essential for contextually relevant sensory experience. Parvalbumin-expressing inhibitory interneurons (PV + INs) have functional properties and connectivity that enables them to segregate tactile and nociceptive information. Here we examine inhibitory drive to PV + INs using targeted patch-clamp recording in spinal cord slices from adult transgenic mice that express enhanced green fluorescent protein in PV + INs...
September 14, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28886747/women-s-views-and-experiences-of-two-alternative-consent-pathways-for-participation-in-a-preterm-intrapartum-trial-a-qualitative-study
#4
Alexandra Sawyer, Celine Chhoa, Susan Ayers, Angela Pushpa-Rajah, Lelia Duley
BACKGROUND: The Cord Pilot Trial compared alternative policies for timing of cord clamping at very preterm birth at eight UK hospitals. In addition to standard written consent, an oral assent pathway was developed for use when birth was imminent. The aim of this study was to explore women's views and experiences of two alternative consent pathways to participate in the Cord Pilot Trial. METHODS: We conducted a qualitative study using semi-structured interviews. A total of 179 participants in the Cord Pilot Trial were sent a postal invitation to take part in interviews...
September 9, 2017: Trials
https://www.readbyqxmd.com/read/28882580/lotus-birth-a-holistic-approach-on-physiological-cord-clamping
#5
Laura A Zinsser
BACKGROUND: The positive effects of delayed cord clamping (DCC) has been extensively researched. DCC means: waiting at least one minute after birth before clamping and cutting the cord or till the pulsation has stopped. With physiological clamping and cutting (PCC) the clamping and cutting can happen at the earliest after the pulsation has stopped. With a Lotus birth, no clamping and cutting of the cord is done. A woman called Clair Lotus Day imitated the holistic approach of PCC from an anthropoid ape in 1974...
September 4, 2017: Women and Birth: Journal of the Australian College of Midwives
https://www.readbyqxmd.com/read/28878831/the-mirage-of-long-term-vital-benefice-risk-for-the-beginning-of-life
#6
Ramona Mohora, Decebal Hudita, Silvia-Maria Stoicescu
INTRODUCTION: Cord blood is the "life" of the fetus until birth. After delivery, the newborn is "single" and forced to adapt to live using the latest resources provided by the mother. Those who believe that a newborn is just a miniature independent adult are just trusting one of the illusions of secular medicine. Cord blood contains precious cells, stem, red and white blood cells. T cells as a part of white blood cells prevent infections and other illnesses. Cochrane Database 2013 published a study reporting the role of delayed umbilical cord clamping for the benefit of infants...
January 2017: Mædica
https://www.readbyqxmd.com/read/28871229/gabapentin-modulates-hcn4-channel-voltage-dependence
#7
Han-Shen Tae, Kelly M Smith, A Marie Phillips, Kieran A Boyle, Melody Li, Ian C Forster, Robert J Hatch, Robert Richardson, David I Hughes, Brett A Graham, Steven Petrou, Christopher A Reid
Gabapentin (GBP) is widely used to treat epilepsy and neuropathic pain. There is evidence that GBP can act on hyperpolarization-activated cation (HCN) channel-mediated Ih in brain slice experiments. However, evidence showing that GBP directly modulates HCN channels is lacking. The effect of GBP was tested using two-electrode voltage clamp recordings from human HCN1, HCN2, and HCN4 channels expressed in Xenopus oocytes. Whole-cell recordings were also made from mouse spinal cord slices targeting either parvalbumin positive (PV(+)) or calretinin positive (CR(+)) inhibitory neurons...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28870570/effects-of-naftopidil-on-inhibitory-transmission-in-substantia-gelatinosa-neurons-of-the-rat-spinal-dorsal-horn-in-vitro
#8
Daisuke Uta, Du-Jie Xie, Tsuyoshi Hattori, Ken-Ichi Kasahara, Megumu Yoshimura
OBJECTIVE: Naftopidil is used clinically for the treatment of voiding disorders in benign prostatic hyperplasia. Previous in vivo experiments in which naftopidil was applied intrathecally abolished rhythmic bladder contraction, suggesting that naftopidil might inhibit a voiding reflex through interaction with spinal dorsal horn neurons. Here we aimed to clarify the mechanism of action of naftopidil on dorsal horn neurons. METHODS: Whole-cell patch-clamp recordings were performed using substantia gelatinosa neurons of adult rat spinal cord slices...
September 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28865458/salutary-effects-of-glibenclamide-during-the-chronic-phase-of-murine-experimental-autoimmune-encephalomyelitis
#9
Volodymyr Gerzanich, Tapas K Makar, Poornachander Reddy Guda, Min Seong Kwon, Jesse A Stokum, Seung Kyoon Woo, Svetlana Ivanova, Alexander Ivanov, Rupal I Mehta, Alexandra Brooke Morris, Joseph Bryan, Christopher T Bever, J Marc Simard
BACKGROUND: In multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE), inflammation is perpetuated by both infiltrating leukocytes and astrocytes. Recent work implicated SUR1-TRPM4 channels, expressed mostly by astrocytes, in murine EAE. We tested the hypothesis that pharmacological inhibition of SUR1 during the chronic phase of EAE would be beneficial. METHODS: EAE was induced in mice using myelin oligodendrocyte glycoprotein (MOG) 35-55. Glibenclamide (10 μg/day) was administered beginning 12 or 24 days later...
September 2, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28862988/feto-maternal-osmotic-balance-at-term-a-prospective-observational-study
#10
Vibeke Moen, Lars Brudin, Ivar Tjernberg, Mats Rundgren, Lars Irestedt
OBJECTIVE: We performed the present study to investigate the feto-maternal osmotic relationship at term with the hypothesis that, in contrast to the literature, maternal plasma osmolality is lower than fetal levels. In a previous study, we found that maternal plasma sodium at delivery was consistently lower than the sodium in the umbilical artery. Our aim was to corroborate these results with analysis of osmolality. METHODS: Blood was sampled from 30 women immediately before cesarean section and from the umbilical artery and vein before cord clamping and osmolality, sodium and albumin were analyzed...
June 6, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28860014/feasibility-and-safety-of-intact-cord-resuscitation-in-newborn-infants-with-congenital-diaphragmatic-hernia-cdh
#11
Caroline Lefebvre, Thameur Rakza, Nathalie Weslinck, Pascal Vaast, Véronique Houfflin-Debarge, Sébastien Mur, Laurent Storme
BACKGROUND: Starting resuscitation before clamping the umbilical cord at birth may progressively increase pulmonary blood flow while umbilical venous blood flow is still contributing to maintenance of oxygenation and left ventricle preload. OBJECTIVE: To evaluate the feasibility, safety, and effects of intact cord resuscitation (ICR) on cardiorespiratory adaptation at birth in newborn infants with CDH. STUDY DESIGN: Prospective, observational, single-center pilot study...
August 30, 2017: Resuscitation
https://www.readbyqxmd.com/read/28852401/aldehyde-dehydrogenase-2-overexpression-inhibits-neuronal-apoptosis-after-spinal-cord-ischemia-reperfusion-injury
#12
Xing-Zhen Liu, Xin Sun, Kang-Ping Shen, Wen-Jie Jin, Zhi-Yi Fu, Hai-Rong Tao, Zhi-Xing Xu
Aldehyde dehydrogenase 2 (ALDH2) is an important factor in inhibiting oxidative stress and has been shown to protect against renal ischemia/reperfusion injury. Therefore, we hypothesized that ALDH2 could reduce spinal cord ischemia/reperfusion injury. Spinal cord ischemia/reperfusion injury was induced in rats using the modified Zivin's method of clamping the abdominal aorta. After successful model establishment, the agonist group was administered a daily consumption of 2.5% alcohol. At 7 days post-surgery, the Basso, Beattie, and Bresnahan score significantly increased in the agonist group compared with the spinal cord ischemia/reperfusion injury group...
July 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28844004/altered-intrinsic-and-synaptic-properties-of-lumbosacral-dorsal-horn-neurons-in-a-mouse-model-of-colitis
#13
Kristen E Farrell, Simon Keely, Marjorie M Walker, Alan M Brichta, Brett A Graham, Robert J Callister
Visceral pain in inflammatory and functional gastrointestinal conditions is a major clinical problem. The exact mechanisms underlying the development of pain, during and after visceral inflammation are unknown. However, clinical and pre-clinical evidence suggests plasticity within the spinal cord dorsal horn is a contributing factor. Here we use an in vivo preparation and patch-clamp electrophysiology to test whether the synaptic and intrinsic properties of superficial dorsal horn (SDH) neurons are altered 5days after the induction of mild colitis in adult male mice (i...
August 23, 2017: Neuroscience
https://www.readbyqxmd.com/read/28835064/-spinal-analgesic-mechanism-of-minocycline-in-formalin-induced-inflammatory-pain
#14
X X Hu, H Z Peng, X E Cheng, X J Feng, L X Ma, C Y Jiang, T Liu
Objective: To investigate the spinal analgesic mechanism of minocycline in formalin-induced inflammatory pain. Methods: Behavioral test: Male Sprague-Dawley rats(3-5-week old) were randomly assigned into four groups: control, model, vehicle-controlled and minocycline group. Ten percent neutral formalin was injected subcutaneously into the right hind paw dorsum of the rats in model, vehicle-controlled and minocycline group. Normal saline was injected subcutaneously into the right hind paw dorsum of the rats in control group...
August 22, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28826265/role-of-delayed-cord-clamping-in-prevention-of-necrotizing-enterocolitis-in-preterm-neonates-a-systematic-review
#15
Bhawan Deep Garg, Anju Bansal
BACKGROUND: Necrotizing enterocolitis (NEC) is one of the leading causes of neonatal mortality and morbidity particularly in very-low-birth-weight (VLBW) neonates. The incidence of NEC varies across countries and neonatal centers in between 7-14%. AIMS: To evaluate the role of delayed cord clamping (DCC) for prevention of NEC in preterm neonates. METHOD: The literature search was done for various randomized control trial (RCT) by searching the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, EMBASE, ongoing clinical trials and abstract of conferences...
August 21, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28822733/-blood-transfusion-to-pre-term-neonates-what-is-new-in-the-french-guidelines-since-2002
#16
G Favrais, B Wibaut, P Pladys, E Saliba
This document updates the "Guidelines for the Administration of Blood Products: Transfusion of Infants and Neonates" published in 2002 by the French National Authority for Health (HAS). In doing so, it acknowledges changes in transfusion practices during the past decade, particularly with respect to safety issues and additional published transfusion-related guidelines. The major modifications concern irregular agglutinin screening indications before 4 months of age, a limitation of blood irradiation, and a non-recommendation for systematically checking for cytomegalovirus status...
August 16, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28818853/interobserver-agreement-and-image-quality-of-functional-cardiac-ultrasound-measures-used-in-a-randomised-trial-of-delayed-cord-clamping-in-preterm-infants
#17
Himanshu Popat, Kristy P Robledo, Lucille Sebastian, Nicholas Evans, Andrew Gill, Martin Kluckow, Sanjay Sinhal, Koert de Waal, William Tarnow-Mordi, David Osborn
OBJECTIVE: Functional cardiac ultrasound measures are used clinically and in trials for assessing the haemodynamic status of newborn infants. Superior vena cava (SVC) flow and right ventricular output (RVO) are established measures of systemic blood flow on the first postnatal day. The objective was to assess image quality and interobserver agreement of these measures in preterm infants enrolled in a randomised trial of immediate versus delayed cord clamping. DESIGN AND SETTING: Image quality and interobserver agreement for SVC flow, RVO and ductus arteriosus (DA) size were assessed on measurements taken at 3-6, 6-12 and 20-28 hours for the first 10 infants enrolled at each of four sites (total 40)...
August 17, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28807414/transient-receptor-potential-vanilloid-4-expressing-macrophages-and-keratinocytes-contribute-differentially-to-allergic-and-nonallergic-chronic-itch
#18
Jialie Luo, Jing Feng, Guang Yu, Pu Yang, Madison R Mack, Junhui Du, Weihua Yu, Aihua Qian, Yujin Zhang, Shenbin Liu, Shijin Yin, Amy Xu, Jizhong Cheng, Qingyun Liu, Roger G O'Neil, Yang Xia, Liang Ma, Susan M Carlton, Brian S Kim, Kenneth Renner, Qin Liu, Hongzhen Hu
BACKGROUND: Chronic itch is a highly debilitating symptom that underlies many medical disorders with no universally effective treatments. Although unique neuronal signaling cascades in the sensory ganglia and spinal cord have been shown to critically promote the pathogenesis of chronic itch, the role of skin-associated cells remains poorly understood. OBJECTIVE: We sought to examine the cutaneous mechanisms underlying transient receptor potential vanilloid 4 (TRPV4)-mediated allergic and nonallergic chronic itch...
August 5, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28805620/ex-utero-intrapartum-treatment-for-extremely-low-birth-weight-neonates-requiring-resuscitation-at-birth
#19
Tai-Ho Hung, Ting-Xuan Huang, T'sang-T'ang Hsieh
OBJECTIVE: Difficulties often encountered during intubation in extremely low birth-weight (ELBW) neonates requiring resuscitation at birth because of the smaller airway and the pressure from the limited number of attempts before hemodynamic instability occurs. CASE REPORT: We evaluated two pregnant women at 26 weeks of gestation with premature rupture of membranes and evidence of chorioamnionitis and applied the concept of ex utero intrapartum treatment, which involved delaying cord clamping (DCC) after establishing a secured airway with adequate ventilation during cesarean delivery...
August 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28771534/neural-stem-cell-mediated-recovery-is-enhanced-by-chondroitinase-abc-pretreatment-in-chronic-cervical-spinal-cord-injury
#20
Hidenori Suzuki, Christopher S Ahuja, Ryan P Salewski, Lijun Li, Kajana Satkunendrarajah, Narihito Nagoshi, Shinsuke Shibata, Michael G Fehlings
Traumatic spinal cord injuries (SCIs) affect millions of people worldwide; the majority of whom are in the chronic phase of their injury. Unfortunately, most current treatments target the acute/subacute injury phase as the microenvironment of chronically injured cord consists of a well-established glial scar with inhibitory chondroitin sulfate proteoglycans (CSPGs) which acts as a potent barrier to regeneration. It has been shown that CSPGs can be degraded in vivo by intrathecal Chondroitinase ABC (ChABC) to produce a more permissive environment for regeneration by endogenous cells or transplanted neural stem cells (NSCs) in the subacute phase of injury...
2017: PloS One
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