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Neonatal hyperbilirubinemia

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https://www.readbyqxmd.com/read/28617443/bilirubin-neurotoxicity-is-associated-with-proteasome-inhibition
#1
Hongbiao Huang, Mingxing Guo, Ningning Liu, Chong Zhao, Haoyu Chen, Xiaoli Wang, Siyan Liao, Ping Zhou, Yuning Liao, Xin Chen, Xiaoying Lan, Jinghong Chen, Dacai Xu, Xiaofen Li, Xianping Shi, Li Yu, Yuqiang Nie, Xuejun Wang, Chang-E Zhang, Jinbao Liu
The molecular mechanism underlying bilirubin neurotoxicity remains obscure. Ubiquitin-proteasome system-mediated proteolysis is pivotal to virtually all cellular processes and cell survival. Here we report for the first time that bilirubin at a clinically relevant elevated level impairs proteasomal function via inhibiting both the 19S proteasome-associated deubiquitinases (USP14 and UCHL5) and the chymotrypsin-like (CT-like) peptidase activity of 20S proteasomes, thereby contributing to bilirubin neurotoxicity...
June 15, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28617429/comparison-between-bilistick-system-and-transcutaneous-bilirubin-in-assessing-total-bilirubin-serum-concentration-in-jaundiced-newborns
#2
C Greco, I F Iskander, D M Akmal, S Z El Houchi, D A Khairy, G Bedogni, R P Wennberg, C Tiribelli, C D Coda Zabetta
OBJECTIVE: To compare the performance and accuracy of the JM-103 transcutaneous bilirubinometer and Bilistick System in measuring total serum bilirubin for the early identification of neonatal hyperbilirubinemia. STUDY DESIGN: The study was performed on 126 consecutive term and near-term (⩾36 weeks' gestational age) jaundiced newborns in Cairo University Children Hospital NICU, Egypt. Total serum bilirubin was assayed concurrently by the clinical laboratory and Bilistick System and estimated using the JM-103 transcutaneous bilirubin instrument...
June 15, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28587329/mosapride-combined-with-probiotics-on-gastrointestinal-function-and-growth-in-premature-infants
#3
Ai-Mei Zhang, Zhi-Qun Sun, Li-Ming Zhang
The aim of this study was to investigate the effects of mosapride combined with probiotics on gastrointestinal function and growth and development in premature infants. A total of 240 premature infants treated at Weifang People's Hospital between June 2012 and May 2015 who matched our criteria were randomly divided into three groups of 80 cases each. Group A received routine treatment, group B received routine treatment combined with live B. subtilis and E. faecium granules with multivitamins (Medilac-Vita), and group C received routine treatment and Saccharomyces boulardii sachets (Bioflor)...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28583873/a-trade-off-between-catalytic-activity-and-protein-stability-determines-the-clinical-manifestations-of-glucose-6-phosphate-dehydrogenase-g6pd-deficiency
#4
Usa Boonyuen, Kamonwan Chamchoy, Thitiluck Swangsri, Thanyaphorn Junkree, Nicholas P J Day, Nicholas J White, Mallika Imwong
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most common polymorphism and enzymopathy in humans, affecting approximately 400 million people worldwide. It is responsible for various clinical manifestations, including favism, hemolytic anemia, chronic non-spherocytic hemolytic anemia, spontaneous abortion, and neonatal hyperbilirubinemia. Understanding the molecular mechanisms underlying the severity of G6PD deficiency is of great importance but that of many G6PD variants are still unknown. In this study, we report the construction, expression, purification, and biochemical characterization in terms of kinetic properties and stability of five clinical G6PD variants-G6PD Bangkok, G6PD Bangkok noi, G6PD Songklanagarind, G6PD Canton+Bangkok noi, and G6PD Union+Viangchan...
June 3, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28578174/maternal-marijuana-use-adverse-pregnancy-outcomes-and-neonatal-morbidity
#5
Torri D Metz, Amanda A Allshouse, Carol J Rowland Hogue, Robert L Goldenberg, Donald J Dudley, Michael W Varner, Deborah L Conway, George R Saade, Robert M Silver
BACKGROUND: The Eunice Kennedy Shriver National Institute of Child Health and Human Development Stillbirth Collaborative Research Network previously demonstrated an association between stillbirth and maternal marijuana use as defined by the presence of tetrahydrocannabinol in the umbilical cord homogenate. However, the relationship between marijuana use and perinatal complications in live births is uncertain. OBJECTIVE: Our aim was to examine if maternal marijuana use is associated with increased odds of adverse pregnancy outcomes and neonatal morbidity among live-born controls in the Stillbirth Collaborative Research Network cohort...
May 31, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28576525/an-analysis-of-hearing-screening-test-results-in-2291-premature-infants-of-chinese-population
#6
Lili Huang, Fei Xiong, Jinrong Li, Fan Yang
OBJECTIVE: The aim of this study was to analyze the hearing screening program among preterm infants as well as to identify risk factors associated with failing primary newborn hearing screening. METHODS: The retrospectively selected population included all preterm infants who had primary hearing screening in a neonatal ward from January 1st, 2013 to December 31st, 2015 at West China Second University Hospital, Sichuan University. The newborn hearing screening (NHS) procedure was performed in all preterm infants by automated auditory brainstem response (AABR)...
April 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28571223/neonatal-hyperthyroidism-with-fulminant-liver-failure-a-case-report
#7
Mohammed Hasosah, Khalid Alsaleem, Mansour Qurashi, Abdullah Alzaben
Neonatal hyperthyroidism is a rare disease that is seen in infants born to mothers with Graves' disease. Hepatic manifestation of neonatal hyperthyroidism is extremely rare. We describe a neonate with fulminant liver failure secondary to neonatal hyperthyroidism caused by maternal Graves's disease. The baby was admitted with low birth weight and hepatosplenomegaly. At day 2 of life, the baby was irritable and he developed respiratory distress and fulminant hepatic failure which required mechanical ventilation...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28563973/phototherapy-for-neonatal-hyperbilirubinemia
#8
REVIEW
Susumu Itoh, Hitoshi Okada, Toru Kuboi, Takashi Kusaka
About 60 years ago in England, phototherapy for neonatal hyperbilirubinemia was actually used in clinical practice. It was introduced in Japan about 50 years ago. However, the mechanism of how the serum bilirubin concentration was decreased by the phototherapy was still unknown. The mechanism was identified by chemists, biochemists, and pediatricians. Clarification started with the report that unconjugated bilirubin was excreted into bile after the photoirradiation of Gunn rats. After the molecular conformation of bilirubin by X-ray analysis, the mechanism for bile excretion of unconjugated bilirubin was verified based on geometric configurational photoisomers in the Gunn rat...
May 31, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28512725/clofibrate-as-an-adjunct-to-phototherapy-for-unconjugated-hyperbilirubinemia-in-term-neonates
#9
Prasad Kumar, B Adhisivam, B Vishnu Bhat
OBJECTIVE: To evaluate the efficacy of oral clofibrate as an adjunct to phototherapy for unconjugated hyperbilirubinemia in term neonates. METHODS: This randomized controlled trial was done in the level III neonatal intensive care unit (NICU) of a tertiary care hospital. Ninety term neonates with unconjugated hyperbilirubinemia with serum bilirubin 15-25 mg/dl were randomized to either intervention group (single dose of clofibrate in a dose of 50 mg/kg prior to starting phototherapy) or standard care group (only phototherapy)...
May 17, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28503958/neonatal-management-and-outcome-in-alloimmune-hemolytic-disease
#10
Isabelle M C Ree, Vivianne E H J Smits-Wintjens, Johanna G van der Bom, Jeanine M M van Klink, Dick Oepkes, Enrico Lopriore
Hemolytic disease of the fetus and newborn (HDFN) occurs when fetal and neonatal erythroid cells are destroyed by maternal erythrocyte alloantibodies, it leads to anemia and hydrops in the fetus, and hyperbilirubinemia and kernicterus in the newborn. Postnatal care consists of intensive phototherapy and exchange transfusions to treat severe hyperbilirubinemia and top-up transfusions to treat early and late anemia. Other postnatal complications have been reported such as thrombocytopenia, iron overload and cholestasis requiring specific management...
June 5, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28502442/neonatal-cholestasis
#11
REVIEW
Erin Lane, Karen F Murray
Neonatal jaundice is common and usually not concerning when it is secondary to unconjugated hyperbilirubinemia, below the neurotoxic level, and resolves early. Primary care providers should be vigilant, however, about evaluating infants in whom jaundice presents early, is prolonged beyond 2 weeks of life, or presents at high levels. Even in well-appearing infants, fractionated (direct and indirect) bilirubin levels should be obtained in these clinical scenarios to evaluate for potential cholestasis. This review presents an approach to the evaluation of a jaundiced infant and discusses diagnosis and management of several causes of neonatal cholestasis...
June 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/28484028/correction-for-chen-et-al-intestinal-ncor1-a-regulator-of-epithelial-cell-maturation-controls-neonatal-hyperbilirubinemia
#12
(no author information available yet)
No abstract text is available yet for this article.
May 16, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28469520/association-between-early-idiopathic-neonatal-jaundice-and-urinary-tract-infections
#13
Murat Özcan, S Ümit Sarici, Yüksel Yurdugül, Melis Akpinar, Demet Altun, Begüm Özcan, Muhittin A Serdar, Dilek Sarici
BACKGROUND AND PURPOSE: Etiologic role, incidence, demographic, and response-to-treatment characteristics of urinary tract infection (UTI) among neonates, its relationship with significant neonatal hyperbilirubinemia, and abnormalities of the urinary system were studied in a prospective investigation in early (⩽10 days) idiopathic neonatal jaundice in which all other etiologic factors of neonatal hyperbilirubinemia were ruled out. PATIENTS AND METHODS: Urine samples for microscopic and bacteriologic examination were obtained with bladder catheterization from 155 newborns with early neonatal jaundice...
2017: Clinical Medicine Insights. Pediatrics
https://www.readbyqxmd.com/read/28461823/neonatal-indirect-hyperbilirubinemia-and-glucose-6-phosphate-dehydrogenase-deficiency
#14
Hasan M Isa, Masooma S Mohamed, Afaf M Mohamed, Adel Abdulla, Fuad Abdulla
PURPOSE: This study aimed to determine the prevalence of glucose-6-phosphate dehydrogenase (G6PD) deficiency among infants with neonatal indirect hyperbilirubinemia (NIH); compare G6PD-deficient and G6PD-normal patients regarding hyperbilirubinemia and need for exchange transfusions (ET); and assess risk factors for ET and kernicterus. METHODS: This is a case-control retrospective study. Medical records of NIH patients admitted to the Pediatric Department, Salmaniya Medical Complex, Bahrain, between January 2007 and June 2010 were reviewed...
April 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28441153/discharge-criteria-for-the-late-preterm-infant-a-review-of-the-literature
#15
Jenny M Quinn, Marteen Sparks, Sheila M Gephart
BACKGROUND: Standardized late preterm infant (LPI) discharge criteria ensure best practice and help guide the neonatal provider to determine the appropriate level of care following birth. However, the location can vary from the well newborn setting to the neonatal intensive care unit (NICU). PURPOSE: The purpose of this review is to examine differences in LPI discharge criteria between the well newborn setting and the NICU by answering the clinical questions, "What are the recommended discharge criteria for the LPI and do they differ if admitted to the well newborn setting versus the NICU?" SEARCH STRATEGY: Databases searched include CINAHL, TRIP, PubMed, and the Cochrane Library...
April 24, 2017: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/28409762/readmission-for-neonatal-hyperbilirubinemia-in-an-area-with-a-high-prevalence-of-glucose-6-phosphate-dehydrogenase-deficiency-a-hospital-based-retrospective-study
#16
A Al-Omran, S Al-Abdi, Z Al-Salam
BACKGROUND: Hyperbilirubinemia is one of the most common causes of neonatal readmission to hospital. AIMS: To assess risk factors for hyperbilirubinemia among neonates readmitted for this condition and the ratio of the mean corpuscular hemoglobin concentration (MCHC) to the mean corpuscular volume (MCV). METHODS: We retrospectively studied the clinical and laboratory findings, management and possible risk factors for hyperbilirubinemia in 301 neonates born at ≥35 weeks gestation and readmitted to hospital owing to hyperbilirubinemia over five years...
2017: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/28401746/resolution-of-liver-disease-in-transient-abnormal-myelopoiesis-with-fish-oil-emulsion
#17
Toshihiko Watanabe, Shoichiro Amari, Keiko Tsukamoto, Yushi Ito, Daisuke Tomizawa, Takako Yoshioka, Yutaka Kanamori
Neonates with Down syndrome are at risk of developing transient abnormal myelopoiesis (TAM), which is characterized by transient clonal myeloproliferation of the blast cells. TAM can resolve spontaneously, but some patients die at an early age due to organ failure. Liver fibrosis in TAM is a life-threatening condition, but treatment options have not yet been established. Here, we report on the case of an infant with TAM complicated by liver disease, whose hyperbilirubinemia was successfully ameliorated with omega-3 fatty acid (ω3FA) lipid emulsion...
April 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28400613/the-african-american-neonate-at-risk-for-extreme-hyperbilirubinemia-a-better-management-strategy-is-needed
#18
EDITORIAL
W C Golden
No abstract text is available yet for this article.
April 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28399191/association-between-uridin-diphosphate-glucuronosylotransferase-1a1-ugt1a1-gene-polymorphism-and-neonatal-hyperbilirubinemia
#19
Katarzyna Mazur-Kominek, Tomasz Romanowski, Krzysztof Bielawski, Bogumiła Kiełbratowska, Krzysztof Preis, Iwona Domżalska-Popadiuk, Magdalena Słomińska-Frączek, Katarzyna Sznurkowska, Joanna Renke, Katarzyna Plata-Nazar, Karolina Śledzińska, Grażyna Sikorska-Wiśniewska, Magdalena Góra-Gębka, Anna Liberek
OBJECTIVE: To assess the prevalence of UGT1A1*28 and UGT1A1*60 polymorphisms of UGT1A1 gene and their association with hyperbilirubinemia. STUDY DESIGN: The study was performed at a single centre - at the Department of Obstetrics of the Medical University of Gdansk in Poland. DNA was isolated from Guthrie cards of 171 infants. Only full term newborns (gestational age 38-42 weeks) were included in the study. Fluorescent molecular probes were used for UGT1A1 promoter variation analysis...
April 12, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28386951/neonatal-characteristics-and-perinatal-complications-in-neonates-with-down-syndrome
#20
Zivanit Ergaz-Shaltiel, Offra Engel, Ira Erlichman, Yaron Naveh, Michael S Schimmel, Ariel Tenenbaum
The annual rate of Down syndrome (DS) births in Jerusalem is stable, regardless of prenatal screening, and diagnostic measures. We aimed to evaluate our historical cohort for obstetrical characteristics and the neonatal course and complications. We reviewed computerized medical files of neonates with the diagnosis of DS born in the four main hospitals in Jerusalem between the years 2000 and 2010 and evaluated for maternal history and primary neonatal hospitalization. A total of 403 neonates were diagnosed with DS...
May 2017: American Journal of Medical Genetics. Part A
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