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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/28612667/all-that-glitters-yellow-is-not-gold-presentation-and-pathophysiology-of-bile-cast-nephropathy
#3
Mitchell Pitlick, Prerna Rastogi
BACKGROUND: Acute kidney injury (AKI) often manifests in patients with liver disease because of a prerenal cause and presents as acute tubular necrosis or hepatorenal syndrome. Distinguishing between these entities is important for prognosis and treatment. Some patients may develop AKI related to their underlying liver disease: for example, membranoproliferative glomerulonephritis or IgA nephropathy. Bile cast nephropathy is an often ignored differential diagnosis of AKI in the setting of obstructive jaundice...
June 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28609589/hyperbilirubinemia-the-common-denominator-of-yellow-urticaria
#4
A Combalia, X Fustà, A Guilabert, J M Mascaró, T Estrach
Rosso et al recently enlarged to ten the list of patients diagnosed with yellow urticaria (YU). These cases of YU remind clinicians that the skin, besides forming a biological barrier to protect internal organs and systems from the external environment, frequently reflects underlying internal diseases. YU has been described secondary to infective hepatitis1, liver cirrhosis (regardless of the cause) (2, 3, 4, 5, 6) , acute liver failure(7) , and metastatic disease of the liver(8) . This article is protected by copyright...
June 13, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28605161/the-use-of-therapeutic-plasma-exchange-to-reduce-serum-bilirubin-in-a-dog-with-kernicterus
#5
Tricia Tovar, Sarah Deitschel, Christine Guenther
OBJECTIVE: To describe the use of a manual method of therapeutic plasma exchange to reduce total serum bilirubin, manage kernicterus, and halt progression of neurological dysfunction in a dog with immune-mediated hemolytic anemia (IMHA). CASE SUMMARY: A 5-year-old male neutered Lhasa Apso diagnosed with IMHA developed acute onset neurologic signs consistent with kernicterus. Manual therapeutic plasma exchange was performed in an attempt to reduce total serum bilirubin...
June 12, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28603997/inhibition-of-human-ugt1a1-mediated-bilirubin-glucuronidation-by-polyphenolic-acids-impact-safety-of-popular-salvianolic-acid-a-b-containing-drugs-and-herbal-products
#6
Guo Ma, Ying Zhang, Wenyan Chen, Zhifang Tang, Xiaoming Xin, Ping Yang, Xiaoqin Liu, Weimin Cai, Ming Hu
Bilirubin-related adverse reactions (ADR, e.g., jaundice and hyperbilirubinemia) induced by herbs rich in certain polyphenolic acids are widely reported. However, the causes and the mechanisms underlying these ADR are not well understood. The purpose of this article is to determine the mechanism by which certain polyphenolic acids inhibit UGT1A1-mediated bilirubin glucuronidation, leading to jaundice or hyperbilirubinemia. We investigated in vitro inhibitory effects on bilirubin glucuronidation of salvianolic acid A (SAA), salvianolic acid B (SAB), danshensu (DSS), protocatechuic aldehyde (PA), and rosmarinic acid (RA), as well as two Salvia miltiorrhiza injections (DSI and CDI) rich in polyphenolic acids...
June 22, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28601886/auna2-a-novel-type-of-non-syndromic-slowly-progressive-auditory-synaptopathy-auditory-neuropathy-with-autosomal-dominant-inheritance
#7
Ruth Lang-Roth, Eva Fischer-Krall, Cornelia Kornblum, Gudrun Nürnberg, Dieter Meschede, Ingrid Goebel, Peter Nürnberg, Dirk Beutner, Christian Kubisch, Martin Walger, Alexander E Volk
BACKGROUND: Auditory synaptopathy/neuropathy (AS/AN) is a heterogeneous disorder, which may be caused by environmental factors like postnatal hyperbilirubinemia or by genetic factors. The genetic forms are subdivided into syndromic and non-syndromic types, and show different inheritance patterns with a strong preponderance of autosomal-recessive forms. To date, only a single locus for non-syndromic autosomal-dominant AS/AN (AUNA1) has been reported in a single family, in which a non-coding DIAPH3 mutation was subsequently described as causative...
June 10, 2017: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/28597405/hyperbilirubinemia-hypertension-and-ckd-the-links
#8
REVIEW
Ibrahim Mortada
PURPOSE OF REVIEW: This review aims to highlight recent advances on the role of hyperbilirubinemia in hypertension and chronic kidney disease, with a focus on the pathophysiological mechanisms explaining the protective effects of bilirubin. An overview of pharmacologic induction of hyperbilirubinemia will also be discussed. RECENT FINDINGS: The findings depict a protective role of bilirubin in the development of hypertension and cardiovascular diseases. Hyperbilirubinemia is also negatively correlated with the development and progression of chronic kidney disease...
July 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28592168/homozygous-mutation-on-the-%C3%AE-globin-polyadenylation-signal-in-a-tunisian-patient-with-%C3%AE-thalassemia-intermedia-and-coinheritance-of-gilbert-s-syndrome
#9
Faten Haddad, Nawel Trabelsi, Leila Chaouch, Imen Darragi, Meriem Oueslati, Imen Boudriga, Dorra Chaouachi, Wijdene El-Borgi, Raouf Hafsia, Salem Abbes, Houyem Ouragini
We report here the clinical, hematological and molecular data in a 50-year-old patient with β-thalassemia intermedia (β-TI) caused by a homozygous β(+) mutation on the β-globin gene polyadenylation (polyA) signal (AATAAA>AAAAAA). β Haplotype analysis was accomplished by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Haplotype and framework analysis showed that this mutation is associated with the [- - - - + + +] β haplotype and framework 1 (CCGCT) (FW1). This mutation was previously reported in the heterozygous state in association with the codon 9 (+TA) mutation in a β-TI patient originating from Tunisia...
June 8, 2017: Hemoglobin
https://www.readbyqxmd.com/read/28590786/liver-fibrosis-associated-with-crigler-najjar-syndrome-in-a-compound-heterozygote
#10
Cynthia R Fata, Lynette A Gillis, M Cristina Pacheco
Crigler-Najjar syndrome is a hereditary unconjugated hyperbilirubinemia. Two forms of the disease are recognized. Type I is more severe and results in kernicterus if left untreated, and Type II is less severe and responds to phenobarbital. While Crigler-Najjar syndrome is thought by many to have normal liver histology, few reports of the liver pathology exist. Herein, we present a 19-year-old patient with Crigler-Najjar who underwent liver transplantation. The liver showed marked canalicular cholestasis with portal and variable, delicate, bridging fibrosis...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28588020/enasidenib-in-mutant-idh2-relapsed-or-refractory-acute-myeloid-leukemia
#11
Eytan M Stein, Courtney D DiNardo, Daniel A Pollyea, Amir T Fathi, Gail J Roboz, Jessica K Altman, Richard M Stone, Daniel J DeAngelo, Ross L Levine, Ian W Flinn, Hagop M Kantarjian, Robert Collins, Manish R Patel, Arthur E Frankel, Anthony Stein, Mikkael A Sekeres, Ronan T Swords, Bruno C Medeiros, Christophe Willekens, Paresh Vyas, Alessandra Tosolini, Qiang Xu, Robert D Knight, Katharine E Yen, Sam Agresta, Stéphane de Botton, Martin S Tallman
Recurrent mutations in isocitrate dehydrogenase 2 (IDH2) occur in ~12% of patients with acute myeloid leukemia (AML). Mutated IDH2 proteins neomorphically synthesize 2-hydroxyglutarate resulting in DNA and histone hypermethylation, leading to blocked cellular differentiation. Enasidenib (AG-221/CC-90007) is a first-in-class, oral, selective inhibitor of mutant-IDH2 enzymes. This first-in-human, phase 1/2 study assessed the maximum tolerated dose (MTD), pharmacokinetic and pharmacodynamic profiles, safety, and clinical activity of enasidenib in patients with mutant-IDH2 advanced myeloid malignancies...
June 6, 2017: Blood
https://www.readbyqxmd.com/read/28587329/mosapride-combined-with-probiotics-on-gastrointestinal-function-and-growth-in-premature-infants
#12
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/28584457/analysis-of-the-clinical-profile-in-patients-with-plasmodium-falciparum-malaria-and-its-association-with-parasite-density
#13
Praveen Mangal, Shilpa Mittal, Kamal Kachhawa, Divya Agrawal, Bhabagrahi Rath, Sanjay Kumar
BACKGROUND: Malaria remains a major health hazard in the modern world, particularly in developing countries. In Plasmodium falciparum malaria, there is a direct correlation between asexual erythrocytic stage parasite density and disease severity. Accordingly, the correlations between parasite density and various clinical presentations, severity, and outcome were examined in falciparum malaria in India. MATERIALS AND METHODS: The study was conducted in a tertiary health-care center in North India...
April 2017: Journal of Global Infectious Diseases
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
#14
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/28583043/intracranial-stenting-for-nilotinib-treatment-associated-cerebrovascular-stenosis-in-chronic-myeloid-leukemia
#15
Tomohiko Ozaki, Hajime Nakamura, Nobuyuki Izutsu, Hiroaki Masaie, Jun Ishikawa, Manabu Kinoshita
One of the second-generation tyrosine kinase inhibitors (TKIs), nilotinib, is increasingly used for imatinib-resistant or intolerant chronic myeloid leukemia (CML). Nilotinib is considered well tolerated with few side effects including hyperglycemia, hyperbilirubinemia and elevated levels of pancreatic enzymes. However, there is growing evidence that nilotinib accelerates atherosclerosis and causes peripheral arterial occlusive disease such as stroke, transient ischemic attack (TIA) and cardiovascular diseases...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28578174/maternal-marijuana-use-adverse-pregnancy-outcomes-and-neonatal-morbidity
#16
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
#17
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
#18
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/28567595/do-alpha-thalassemia-fetal-hemoglobin-and-the-ugt1a1-polymorphism-have-an-influence-on-serum-bilirubin-levels-and-cholelithiasis-in-patients-with-sickle-cell-disease
#19
Laura Alencastro de Azevedo, Joyce Bonazzoni, Sandrine Comparsi Wagner, Mariela Granero Farias, Christina M Bittar, Liane Daudt, Simone Martins de Castro
BACKGROUND: Increased destruction of erythrocytes in patients with sickle cell disease results in chronic hyperbilirubinemia and leads to the formation of gallstones. OBJECTIVES: The objective of this study was to determine the combined influence of alpha thalassemia, fetal hemoglobin, and the UGT1A1 polymorphism on serum bilirubin levels and cholelithiasis in patients with sickle cell disease. METHODS: We analyzed 72 patients treated in the outpatient hematology unit of the Clinical Hospital of Porto Alegre...
May 31, 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/28563973/phototherapy-for-neonatal-hyperbilirubinemia
#20
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
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