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Neonatal hyperbilirubinemia

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https://www.readbyqxmd.com/read/28102362/evaluation-of-region-selective-bilirubin-induced-brain-damage-as-a-basis-for-a-pharmacological-treatment
#1
Matteo Dal Ben, Cristina Bottin, Fabrizio Zanconati, Claudio Tiribelli, Silvia Gazzin
The neurologic manifestations of neonatal hyperbilirubinemia in the central nervous system (CNS) exhibit high variations in the severity and appearance of motor, auditory and cognitive symptoms, which is suggestive of a still unexplained selective topography of bilirubin-induced damage. By applying the organotypic brain culture (OBC: preserving in vitro the cellular complexity, connection and architecture of the in vivo brain) technique to study hyperbilirubinemia, we mapped the regional target of bilirubin-induced damage, demonstrated a multifactorial toxic action of bilirubin, and used this information to evaluate the efficacy of drugs applicable to newborns to protect the brain...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28099134/carboxyhemoglobin-the-forgotten-parameter-of-neonatal-hyperbilirubinemia
#2
Douggl G N Bailey, Hans Fuchs, Roland Hentschel
BACKGROUND: Neonatal hyperbilirubinemia is influenced by a wide variety of factors, one of which is hemolysis. Serious hyperbilirubinemia may lead to a kernicterus with detrimental neurologic sequelae. Patients suffering from hemolytic disease have a higher risk of developing kernicterus. Carbon monoxide (CO), a byproduct of hemolysis or heme degradation, was described by Sjöstrand in the 1960s. It is transported as carboxyhemoglobin (COHb) and exhaled through the lungs. We were interested in a potential correlation between COHb and total serum bilirubin (TSB) and the time course of both parameters...
January 18, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28094087/-management-of-jaundice-in-the-newborn%C3%A2-35%C3%A2-gw-from-screening-to-follow-up-after-discharge-guidelines-for-clinical-practice
#3
A Cortey, L Renesme, J Raignoux, A Bedu, C Casper, P Tourneux, P Truffert
Jaundice due to unconjugated bilirubin is an everyday condition in the neonatal period because it results from the adaptation of bilirubin metabolism at this time of life. Hyperbilirubinemia has a potential neurotoxicity and although it most often resolves spontaneously, it can lead to acute and sometimes chronic encephalopathy. The latter condition is called kernicterus and induces severe and irreversible neurological sequelae. This rare complication is still reported in all countries throughout the world even if severe hyperbilirubinemia can be prevented and critical points points of failure in jaundice management are identified...
January 13, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28093008/hearing-loss-associated-gene-detection-in-neonatal-intensive-care-unit
#4
S M Yang, Ying Liu, C Liu, A H Yin, Y F Wu, X E Zheng, H M Yang, J Yang
OBJECTIVE: To investigate the frequency and mutation spectrum of hearing loss associated gene mutation in Neonatal Intensive Care Unit (NICU). METHODS: Neonates (n = 2305) admitted to NICU were enrolled in this study. Nine prominent hearing loss associated genes, GJB2 (35 del G, 176 del 16,235 del C, 299 del AT), GJB3 (538 C > T), SLC26A4 (IVS7-2A > G, 2168 A > G) and mtDNA 12S rRNA(1555 A > G, 1494 C > T), were detected. RESULT: There were 73 cases hearing-loss-associated gene mutation among 2305 cases, the mutation frequency was 3...
January 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28090778/three-novel-spectrin-variants-in-jaundiced-neonates
#5
Robert D Christensen, Archana M Agarwal, Hassan M Yaish, N Scott Reading, Elizabeth A O'Brien, Josef T Prchal
Various mutations in the genes encoding alpha spectrin (SPTA1) or beta spectrin (SPTB) are known to cause erythrocyte membrane disorders, sometimes associated with severe neonatal jaundice and anemia. We used a next-generation sequencing panel to evaluate 3 unrelated neonates who had puzzling cases of nonimmune hemolytic jaundice. In each case, we identified novel mutations in either SPTA1 or SPTB. Correlating erythrocyte morphology, clinical course, and computational analysis, we submit that each of the 3 variants is a probable pathogenic cause of the hereditary hemolytic conditions in these patients...
January 1, 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28076300/usefulness-of-maternal-red-cell-antibodies-to-predict-hemolytic-disease-of-the-fetus-and-newborn-and-significant-neonatal-hyperbilirubinemia-a-retrospective-study
#6
Bart Peeters, Inge Geerts, Anne-Mie Badts, Veroniek Saegeman, Jan Moerman
No abstract text is available yet for this article.
January 11, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28073104/use-of-transcutaneous-bilirubin-to-determine-the-need-for-phototherapy-in-resource-limited-settings
#7
Bolajoko O Olusanya, Abieyuwa A Emokpae
BACKGROUND: Routine and timely determination of total serum bilirubin (TSB) remains a challenge in many resource-limited countries with substantial burden of severe neonatal hyperbilirubinemia. Limited evidence exists on the potential usefulness of transcutaneous bilirubin (TcB) to identify infants who may require phototherapy based on possible treatment criteria in such settings. OBJECTIVE: To compare the number of infants requiring phototherapy across different TSB criteria and determine the predictive performance of TcB under each criterion...
January 11, 2017: Neonatology
https://www.readbyqxmd.com/read/28072860/hyperbilirubinemia-influences-sleep-wake-cycles-of-term-newborns-in-a-non-linear-manner
#8
Lian Zhang, Yanxia Zhou, Xufang Li, Tingting Cheng
Hyperbilirubinemia is a common cause for irreversible neuronal influence in the brain of term newborns, while the feature of neurological symptoms associated with hyperbilirubinemia has not been well characterized yet. In the present study, we examined a total of 203 neonates suffering from hyperbilirubinemia with a bedside amplitude-integrated Electroencephalography (aEEG) device, in order to determine whether there is any special change in sleep-wake cycles (SWCs). Among these patients, 14 cases showed no recognizable SWCs with the total serum bilirubin (TSB) level at 483...
2017: PloS One
https://www.readbyqxmd.com/read/28071585/newborn-bilirubin-screening-for-preventing-severe-hyperbilirubinemia-and-bilirubin-encephalopathy-a-rapid-review
#9
Kalpana Bhardwaj, Tiffany Locke, Anne Biringer, Allyson Booth, Elizabeth Kathleen Darling, Shelley Dougan, Jane Harrison, Stephen Hill, Ana Johnson, Susan Makin, Beth Potter, Thierry Lacaze-Masmonteil, Julian Little
: hyperbilirubinemia [2], every newborn should be assessed for the risk of developing severe hyperbilirubinemia with the help of predischarge total serum bilirubin or transcutaneous bilirubin measurements and/or assessments of clinical risk factors. The aim of this rapid review is 1) to review the evidence for 1) predicting and preventing severe hyperbilirubinemia and bilirubin encephalopathy, 2) determining the efficacy of home/community treatments (home phototherapy) in the prevention of severe hyperbilirubinemia, and 3) non-invasive/transcutaneous methods for estimating serum bilirubin level...
January 10, 2017: Current Pediatric Reviews
https://www.readbyqxmd.com/read/28069791/prolonged-indirect-hyperbilirubinemia-in-a-moderately-preterm-boy-with-mediterranean-glucose-6-phosphate-dehydrogenase-and-glutathione-s-transferase-mu-1-null-mutations
#10
Sameer Yaseen Al-Abdi
A 33-week gestation boy with Mediterranean glucose-6-phosphate dehydrogenase (G6PD) and a glutathione S-transferase Mu 1 null mutations (GSTM1*0/*0) developed prolonged indirect hyperbilirubinemia (PIH). He had no laboratory evidence of haemolysis or infection, and no exposure to oxidising agents. He has two full-term older brothers who have no history of neonatal hyperbilirubinemia. One brother, who was exclusively breast fed, has only Mediterranean G6PD and the other has only GSTM1*0/*0. The three boys have no mutation in the uridine diphosphate glucuronosyltransferase 1A1 gene...
January 9, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28051047/evaluation-of-the-use-of-laparoscopic-guided-cholecystocholangiography-and-liver-biopsy-in-definitive-diagnosis-of-neonatal-cholestatic-jaundice
#11
Khalid Shreef, Abdullah Alhelal
BACKGROUND: Once it is established that a jaundiced infant has direct hyperbilirubinemia, the principal diagnostic concern is to differentiate hepatocellular from obstructive cholestasis. Traditional tests such as ultrasonography, percutaneous liver biopsy and technetium 99 m hepatobiliary iminodiacetic acid (HIDA) scan are often not sufficiently discriminating. Definitive exclusion of biliary atresia (BA) in the infant with cholestatic jaundice usually requires mini-laparotomy and intra-operative cholangiography...
October 2016: African Journal of Paediatric Surgery: AJPS
https://www.readbyqxmd.com/read/28050461/role-of-saccharomyces-boulardii-in-reduction-of-neonatal-hyperbilirubinemia
#12
V Suganthi, A Gokul Das
INTRODUCTION: Probiotics are known to reduce the severity of hyperbilirubinemia. AIM: This study was done to evaluate the effect of probiotic on neonatal hyperbilirubinemia in term neonates. MATERIALS AND METHODS: A total of 181 healthy term neonates after birth were divided into a control group (n=95) and a treatment group (n=86) randomly and treated with placebo and probiotic (Saccharomyces boulardii) respectively. A total of two doses were given orally in the first two consecutive days...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28049113/update-on-pediatric-overuse
#13
Eric R Coon, Paul C Young, Ricardo A Quinonez, Daniel J Morgan, Sanket S Dhruva, Alan R Schroeder
As concerns over health care-related harms and costs continue to mount, efforts to identify and combat medical overuse are needed. Although much of the recent attention has focused on health care for adults, children are also harmed by overuse. Using a structured PubMed search and manual tables of contents review, we identified important articles on pediatric overuse published in 2015. These articles were evaluated according to the quality of the methods, the magnitude of clinical effect, and the number of patients potentially affected and were categorized into overdiagnosis, overtreatment, and overutilization...
January 3, 2017: Pediatrics
https://www.readbyqxmd.com/read/28026897/pregnancy-outcome-of-gestational-diabetes-mellitus-using-a-structured-model-of-care-wings-project-wings-10
#14
Ram Uma, Balaji Bhavadharini, Harish Ranjani, Manni Mohanraj Mahalakshmi, Ranjit Mohan Anjana, Ranjit Unnikrishnan, Arivudainambi Kayal, Belma Malanda, Anne Belton, Viswanathan Mohan
AIM: To evaluate the impact of a structured model of care (MOC) prepared for resource-constrained settings, on the pregnancy outcomes of Asian Indian women with gestational diabetes mellitus (GDM). METHODS: Pregnant women were screened under the Women in India with GDM Strategy (WINGS) MOC for GDM using the International Association of Diabetes and Pregnancy Study Groups criteria. Women with GDM went through a structured MOC that included medical nutrition therapy (MNT), regular physical activity (PA); and insulin when indicated...
December 27, 2016: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28025333/modulation-of-bilirubin-neurotoxicity-by-the-abcb1-transporter-in-the-ugt1-lethal-mouse-model-of-neonatal-hyperbilirubinemia
#15
Luka Bočkor, Giulia Bortolussi, Simone Vodret, Alessandra Iaconcig, Jana Jašprová, Jaroslav Zelenka, Libor Vitek, Claudio Tiribelli, Andrés F Muro
Moderate neonatal jaundice is the most common clinical condition during newborn life. However, a combination of factors may result in acute hyperbilirubinemia, placing infants at risk of developing bilirubin encephalopathy and death by kernicterus. While most risk factors are known, the mechanisms acting to reduce susceptibility to bilirubin neurotoxicity remain unclear. The presence of modifier genes modulating the risk of developing bilirubin-induced brain damage is increasingly being recognised. The Abcb1 and Abcc1 members of the ABC family of transporters have been suggested to have an active role in exporting unconjugated bilirubin from the central nervous system into plasma...
December 25, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/28018587/case-controlled-study-on-indirect-hyperbilirubinemia-in-exclusively-breast-fed-neonates-and-mutations-of-the-bilirubin-uridine-diphosphate-glucuronyl-transferase-gene-1a1
#16
Amal E Mohammed, Eman G Behiry, Akram E El-Sadek, Waleed E Abdulghany, Dalia M Mahmoud, Abdelfattah A Elkholy
OBJECTIVE: This study aims to investigate the association of neonatal indirect hyperbilirubinemia in exclusively breast-fed infants with UGT1A1 (Uridine Diphosphate-Glucuronyl transferase 1A1) polymorphism. METHODS: 50 neonates were classified into 2 groups: 1) 30 full term neonates with indirect hyperbilirubinemia (gestational age (GA) 39.5 ± 1.2 weeks); 2) 20 apparently healthy full-term neonates. Group 1 was further subdivided based on percentage of body weight lost: (A) less than 10%; (B) 10% or more...
January 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28007513/-delayed-umbilical-cord-clamping-in-preterm-infants-born-before-37%C3%A2-weeks-of-gestation-a-prospective-observational-study
#17
O Dicky, V Ehlinger, B Guyard-Boileau, C Assouline, C Arnaud, C Casper
INTRODUCTION AND OBJECTIVES: Many international studies have demonstrated that delayed umbilical cord clamping reduces neonatal morbidity. However, in France, delayed umbilical cord clamping is still not performed in many neonatal units. The aims of this study were to evaluate the feasibility of developing a protocol of delayed umbilical cord clamping in the maternity ward of the Toulouse university hospital and to evaluate the impact of this new protocol on neonatal mortality. METHODS: We conducted a prospective observational study including 123 preterm infants born before 37 weeks of gestation between June 2012 and June 2013 and hospitalized at birth...
December 19, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27995496/neuroprotective-effect-of-erythropoietin-on-phenylhydrazine-induced-hemolytic-hyperbilirubinemia-in-neonatal-rats
#18
Asli Memisoglu, Meltem Kolgazi, Akan Yaman, Elif Bahadir, Serap Sirvanci, Berrak Ç Yeğen, Eren Ozek
Neonatal unconjugated hyperbilirubinemia might cause severe bilirubin neurotoxicity in especially hemolytic conditions. The study aimed to elucidate the potential neuroprotective effects of erythropoietin (EPO) in hemolysis-induced hyperbilirubinemia. In newborn rats, hyperbilirubinemia secondary to hemolysis was induced by injecting with phenylhydrazine hydrochloride (PHZ) and rats were injected with either vehicle or EPO. At 54th hour of the PHZ injection, rats were decapitated. Serum levels of TNF-α, IL-1β, IL-10, brain-derived neurotrophic factor (BDNF) and S100-B and brain malondialdehyde, glutathione levels and myeloperoxidase activities were measured...
December 19, 2016: Neurochemical Research
https://www.readbyqxmd.com/read/27980881/obstetric-obesity-is-associated-with-neonatal-hyperbilirubinemia-with-high-prevalence-in-native-hawaiians-and-pacific-island-women
#19
Luc Ra Rougée, Shogo J Miyagi, Abby C Collier
Obesity and pregnancy both place the liver under metabolic stress, but interactions between obstetric obesity and bilirubin metabolism have not been studied. We determined associations between obesity, maternal/neonatal bilirubin levels, and uridine 5'diphosphate-glucuronosyltransferase 1A1 (UGT1A1) enzyme that eliminates bilirubin. Adult livers were analyzed for UGT1A1 expression, activity, and bilirubin clearance by pharmacokinetic modeling. Then, matched maternal and neonatal sera (N = 450) were assayed for total and unconjugated bilirubin...
December 2016: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
https://www.readbyqxmd.com/read/27940766/phototherapy-and-risk-of-type-1-diabetes
#20
Thomas B Newman, Andrea C Wickremasinghe, Eileen M Walsh, Barbara A Grimes, Charles E McCulloch, Michael W Kuzniewicz
BACKGROUND AND OBJECTIVE: Increases in both phototherapy use and the incidence of type 1 diabetes mellitus (DM-1) have been reported. One large study has suggested a strong association between them. Our objective was to quantify any association between neonatal phototherapy and DM-1 in a northern California integrated health care system. METHODS: This retrospective cohort study included 499 642 children born at ≥35 weeks' gestation in 15 Kaiser Permanente Northern California hospitals from 1995 to 2011 and followed until March 31, 2014...
November 2016: Pediatrics
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