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Hyperammonemia in Review: Pathophysiology, Diagnosis, and Treatment
Pediatr Nephrol DOI 10.1007/s00467-011-1838-5 EDUCATIONAL REVIEW Hyperammonemia in review: pathophysiology, diagnosis, and treatment Ari Auron & Patrick D. Brophy Received: 23 September 2010 /Revised: 9 January 2011 /Accepted: 12 January 2011 # IPNA 2011 Abstract Ammonia is an important source of nitrogen and is the breakdown and catabolism of dietary and bodily proteins, required for amino acid synthesis. It is also necessary for respectively. In healthy individuals, amino acids that are not normal acid-base balance. When present in high concentra- needed for protein synthesis are metabolized in various tions, ammonia is toxic. Endogenous ammonia intoxication chemical pathways, with the rest of the nitrogen waste being can occur when there is impaired capacity of the body to converted to urea. Ammonia is important for normal animal excrete nitrogenous waste, as seen with congenital enzymatic acid-base balance. During exercise, ammonia is produced in deficiencies. A variety of environmental causes and medica- skeletal muscle from deamination of adenosine monophos- tions may also lead to ammonia toxicity. Hyperammonemia phate and amino acid catabolism. In the brain, the latter refers to a clinical condition associated with elevated processes plus the activity of glutamate dehydrogenase ammonia levels manifested by a variety of symptoms and mediate ammonia production. After formation of ammonium signs, including significant central nervous system (CNS) from glutamine, α-ketoglutarate, a byproduct, may be abnormalities. Appropriate and timely management requires a degraded to produce two molecules of bicarbonate, which solid understanding of the fundamental pathophysiology, are then available to buffer acids produced by dietary sources. differential diagnosis, and treatment approaches available. -
Educational Paper Ciliopathies
Eur J Pediatr (2012) 171:1285–1300 DOI 10.1007/s00431-011-1553-z REVIEW Educational paper Ciliopathies Carsten Bergmann Received: 11 June 2011 /Accepted: 3 August 2011 /Published online: 7 September 2011 # The Author(s) 2011. This article is published with open access at Springerlink.com Abstract Cilia are antenna-like organelles found on the (NPHP) . Ivemark syndrome . Meckel syndrome (MKS) . surface of most cells. They transduce molecular signals Joubert syndrome (JBTS) . Bardet–Biedl syndrome (BBS) . and facilitate interactions between cells and their Alstrom syndrome . Short-rib polydactyly syndromes . environment. Ciliary dysfunction has been shown to Jeune syndrome (ATD) . Ellis-van Crefeld syndrome (EVC) . underlie a broad range of overlapping, clinically and Sensenbrenner syndrome . Primary ciliary dyskinesia genetically heterogeneous phenotypes, collectively (Kartagener syndrome) . von Hippel-Lindau (VHL) . termed ciliopathies. Literally, all organs can be affected. Tuberous sclerosis (TSC) . Oligogenic inheritance . Modifier. Frequent cilia-related manifestations are (poly)cystic Mutational load kidney disease, retinal degeneration, situs inversus, cardiac defects, polydactyly, other skeletal abnormalities, and defects of the central and peripheral nervous Introduction system, occurring either isolated or as part of syn- dromes. Characterization of ciliopathies and the decisive Defective cellular organelles such as mitochondria, perox- role of primary cilia in signal transduction and cell isomes, and lysosomes are well-known -
The Rise and Fall of the Bovine Corpus Luteum
University of Nebraska Medical Center DigitalCommons@UNMC Theses & Dissertations Graduate Studies Spring 5-6-2017 The Rise and Fall of the Bovine Corpus Luteum Heather Talbott University of Nebraska Medical Center Follow this and additional works at: https://digitalcommons.unmc.edu/etd Part of the Biochemistry Commons, Molecular Biology Commons, and the Obstetrics and Gynecology Commons Recommended Citation Talbott, Heather, "The Rise and Fall of the Bovine Corpus Luteum" (2017). Theses & Dissertations. 207. https://digitalcommons.unmc.edu/etd/207 This Dissertation is brought to you for free and open access by the Graduate Studies at DigitalCommons@UNMC. It has been accepted for inclusion in Theses & Dissertations by an authorized administrator of DigitalCommons@UNMC. For more information, please contact [email protected]. THE RISE AND FALL OF THE BOVINE CORPUS LUTEUM by Heather Talbott A DISSERTATION Presented to the Faculty of the University of Nebraska Graduate College in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Biochemistry and Molecular Biology Graduate Program Under the Supervision of Professor John S. Davis University of Nebraska Medical Center Omaha, Nebraska May, 2017 Supervisory Committee: Carol A. Casey, Ph.D. Andrea S. Cupp, Ph.D. Parmender P. Mehta, Ph.D. Justin L. Mott, Ph.D. i ACKNOWLEDGEMENTS This dissertation was supported by the Agriculture and Food Research Initiative from the USDA National Institute of Food and Agriculture (NIFA) Pre-doctoral award; University of Nebraska Medical Center Graduate Student Assistantship; University of Nebraska Medical Center Exceptional Incoming Graduate Student Award; the VA Nebraska-Western Iowa Health Care System Department of Veterans Affairs; and The Olson Center for Women’s Health, Department of Obstetrics and Gynecology, Nebraska Medical Center. -
Ciliopathiesneuromuscularciliopathies Disorders Disorders Ciliopathiesciliopathies
NeuromuscularCiliopathiesNeuromuscularCiliopathies Disorders Disorders CiliopathiesCiliopathies AboutAbout EGL EGL Genet Geneticsics EGLEGL Genetics Genetics specializes specializes in ingenetic genetic diagnostic diagnostic testing, testing, with with ne nearlyarly 50 50 years years of of clinical clinical experience experience and and board-certified board-certified labor laboratoryatory directorsdirectors and and genetic genetic counselors counselors reporting reporting out out cases. cases. EGL EGL Genet Geneticsics offers offers a combineda combined 1000 1000 molecular molecular genetics, genetics, biochemical biochemical genetics,genetics, and and cytogenetics cytogenetics tests tests under under one one roof roof and and custom custom test testinging for for all all medically medically relevant relevant genes, genes, for for domestic domestic andand international international clients. clients. EquallyEqually important important to to improving improving patient patient care care through through quality quality genetic genetic testing testing is is the the contribution contribution EGL EGL Genetics Genetics makes makes back back to to thethe scientific scientific and and medical medical communities. communities. EGL EGL Genetics Genetics is is one one of of only only a afew few clinical clinical diagnostic diagnostic laboratories laboratories to to openly openly share share data data withwith the the NCBI NCBI freely freely available available public public database database ClinVar ClinVar (>35,000 (>35,000 variants variants on on >1700 >1700 genes) genes) and and is isalso also the the only only laboratory laboratory with with a a frefree oen olinnlein dea dtabtaabsaes (eE m(EVmCVlaCslas)s,s f)e, afetuatruinrgin ag vaa vraiarniatn ctl acslasisfiscifiactiaotino sne saercahrc ahn adn rde rpeoprot rrte rqeuqeuset sint tinetrefarcfaec, ew, hwichhic fha cfailcitialiteatse rsa praidp id interactiveinteractive curation curation and and reporting reporting of of variants. -
Molybdoproteomes and Evolution of Molybdenum Utilization
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Vadim Gladyshev Publications Biochemistry, Department of April 2008 Molybdoproteomes and evolution of molybdenum utilization Yan Zhang University of Nebraska-Lincoln, [email protected] Vadim N. Gladyshev University of Nebraska-Lincoln, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/biochemgladyshev Part of the Biochemistry, Biophysics, and Structural Biology Commons Zhang, Yan and Gladyshev, Vadim N., "Molybdoproteomes and evolution of molybdenum utilization" (2008). Vadim Gladyshev Publications. 78. https://digitalcommons.unl.edu/biochemgladyshev/78 This Article is brought to you for free and open access by the Biochemistry, Department of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Vadim Gladyshev Publications by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Published in Journal of Molecular Biology (2008); doi: 10.1016/j.jmb.2008.03.051 Copyright © 2008 Elsevier. Used by permission. http://www.sciencedirect.com/science/journal/00222836 Submitted November 26, 2007; revised March 15, 2008; accepted March 25, 2008; published online as “Accepted Manuscript” April 1, 2008. Molybdoproteomes and evolution of molybdenum utilization Yan Zhang and Vadim N. Gladyshev* Department of Biochemistry, University of Nebraska–Lincoln, Lincoln, NE 685880664 *Corresponding author—tel 402 472-4948, fax 402 472-7842, email [email protected] Abstract The trace element molybdenum (Mo) is utilized in many life forms, where it is a key component of several enzymes involved in nitrogen, sulfur, and carbon metabolism. With the exception of nitrogenase, Mo is bound in proteins to a pterin, thus forming the molybdenum cofactor (Moco) at the catalytic sites of molybdoenzymes. -
An Interactive Web Application to Explore Regeneration-Associated Gene Expression and Chromatin Accessibility
Supplementary Materials Regeneration Rosetta: An interactive web application to explore regeneration-associated gene expression and chromatin accessibility Andrea Rau, Sumona P. Dhara, Ava J. Udvadia, Paul L. Auer 1. Table S1. List of cholesterol metabolic genes from MGI database 2. Table S2. List of differentially expressed transcripts during optic nerve regeneration in zebrafish using the MGI cholesterol metabolic gene queries in the Regeneration Rosetta app 3. Table S3. List of transcription factor encoding genes from brain cell bodies following spinal cord injury in lamprey over a course of 12 weeKs 4. Table S4. List of transcription factor encoding genes from spinal cell bodies following spinal cord injury in lamprey over a course of 12 weeks Ensembl ID MGI Gene ID Symbol Name ENSMUSG00000015243 MGI:99607 Abca1 ATP-binding cassette, sub-family A (ABC1), member 1 ENSMUSG00000026944 MGI:99606 Abca2 ATP-binding cassette, sub-family A (ABC1), member 2 ENSMUSG00000024030 MGI:107704 Abcg1 ATP binding cassette subfamily G member 1 ENSMUSG00000026003 MGI:87866 Acadl acyl-Coenzyme A dehydrogenase, long-chain ENSMUSG00000018574 MGI:895149 Acadvl acyl-Coenzyme A dehydrogenase, very long chain ENSMUSG00000038641 MGI:2384785 Akr1d1 aldo-keto reductase family 1, member D1 ENSMUSG00000028553 MGI:1353627 Angptl3 angiopoietin-like 3 ENSMUSG00000031996 MGI:88047 Aplp2 amyloid beta (A4) precursor-like protein 2 ENSMUSG00000032083 MGI:88049 Apoa1 apolipoprotein A-I ENSMUSG00000005681 MGI:88050 Apoa2 apolipoprotein A-II ENSMUSG00000032080 MGI:88051 Apoa4 -
EXTENDED CARRIER SCREENING Peace of Mind for Planned Pregnancies
Focusing on Personalised Medicine EXTENDED CARRIER SCREENING Peace of Mind for Planned Pregnancies Extended carrier screening is an important tool for prospective parents to help them determine their risk of having a child affected with a heritable disease. In many cases, parents aren’t aware they are carriers and have no family history due to the rarity of some diseases in the general population. What is covered by the screening? Genomics For Life offers a comprehensive Extended Carrier Screening test, providing prospective parents with the information they require when planning their pregnancy. Extended Carrier Screening has been shown to detect carriers who would not have been considered candidates for traditional risk- based screening. With a simple mouth swab collection, we are able to test for over 419 genes associated with inherited diseases, including Fragile X Syndrome, Cystic Fibrosis and Spinal Muscular Atrophy. The assay has been developed in conjunction with clinical molecular geneticists, and includes genes listed in the NIH Genetic Test Registry. For a list of genes and disorders covered, please see the reverse of this brochure. If your gene of interest is not covered on our Extended Carrier Screening panel, please contact our friendly team to assist you in finding a gene test panel that suits your needs. Why have Extended Carrier Screening? Extended Carrier Screening prior to pregnancy enables couples to learn about their reproductive risk and consider a complete range of reproductive options, including whether or not to become pregnant, whether to use advanced reproductive technologies, such as preimplantation genetic diagnosis, or to use donor gametes. -
Mutation of the Fumarase Gene in Two Siblings with Progressive Encephalopathy and Fumarase Deficiency T
Mutation of the Fumarase Gene in Two Siblings with Progressive Encephalopathy and Fumarase Deficiency T. Bourgeron,* D. Chretien,* J. Poggi-Bach, S. Doonan,' D. Rabier,* P. Letouze,I A. Munnich,* A. R6tig,* P. Landneu,* and P. Rustin* *Unite de Recherches sur les Handicaps Genetiques de l'Enfant, INSERM U393, Departement de Pediatrie et Departement de Biochimie, H6pital des Enfants-Malades, 149, rue de Sevres, 75743 Paris Cedex 15, France; tDepartement de Pediatrie, Service de Neurologie et Laboratoire de Biochimie, Hopital du Kremlin-Bicetre, France; IFaculty ofScience, University ofEast-London, UK; and IService de Pediatrie, Hopital de Dreux, France Abstract chondrial enzyme (7). Human tissue fumarase is almost We report an inborn error of the tricarboxylic acid cycle, fu- equally distributed between the mitochondria, where the en- marase deficiency, in two siblings born to first cousin parents. zyme catalyzes the reversible hydration of fumarate to malate They presented with progressive encephalopathy, dystonia, as a part ofthe tricarboxylic acid cycle, and the cytosol, where it leucopenia, and neutropenia. Elevation oflactate in the cerebro- is involved in the metabolism of the fumarate released by the spinal fluid and high fumarate excretion in the urine led us to urea cycle. The two isoenzymes have quite homologous struc- investigate the activities of the respiratory chain and of the tures. In rat liver, they differ only by the acetylation of the Krebs cycle, and to finally identify fumarase deficiency in these NH2-terminal amino acid of the cytosolic form (8). In all spe- two children. The deficiency was profound and present in all cies investigated so far, the two isoenzymes have been found to tissues investigated, affecting the cytosolic and the mitochon- be encoded by a single gene (9,10). -
Inherited Metabolic Disease
Inherited metabolic disease Dr Neil W Hopper SRH Areas for discussion • Introduction to IEMs • Presentation • Initial treatment and investigation of IEMs • Hypoglycaemia • Hyperammonaemia • Other presentations • Management of intercurrent illness • Chronic management Inherited Metabolic Diseases • Result from a block to an essential pathway in the body's metabolism. • Huge number of conditions • All rare – very rare (except for one – 1:500) • Presentation can be non-specific so index of suspicion important • Mostly AR inheritance – ask about consanguinity Incidence (W. Midlands) • Amino acid disorders (excluding phenylketonuria) — 18.7 per 100,000 • Phenylketonuria — 8.1 per 100,000 • Organic acidemias — 12.6 per 100,000 • Urea cycle diseases — 4.5 per 100,000 • Glycogen storage diseases — 6.8 per 100,000 • Lysosomal storage diseases — 19.3 per 100,000 • Peroxisomal disorders — 7.4 per 100,000 • Mitochondrial diseases — 20.3 per 100,000 Pathophysiological classification • Disorders that result in toxic accumulation – Disorders of protein metabolism (eg, amino acidopathies, organic acidopathies, urea cycle defects) – Disorders of carbohydrate intolerance – Lysosomal storage disorders • Disorders of energy production, utilization – Fatty acid oxidation defects – Disorders of carbohydrate utilization, production (ie, glycogen storage disorders, disorders of gluconeogenesis and glycogenolysis) – Mitochondrial disorders – Peroxisomal disorders IMD presentations • ? IMD presentations • Screening – MCAD, PKU • Progressive unexplained neonatal -
A Computational Approach for Defining a Signature of Β-Cell Golgi Stress in Diabetes Mellitus
Page 1 of 781 Diabetes A Computational Approach for Defining a Signature of β-Cell Golgi Stress in Diabetes Mellitus Robert N. Bone1,6,7, Olufunmilola Oyebamiji2, Sayali Talware2, Sharmila Selvaraj2, Preethi Krishnan3,6, Farooq Syed1,6,7, Huanmei Wu2, Carmella Evans-Molina 1,3,4,5,6,7,8* Departments of 1Pediatrics, 3Medicine, 4Anatomy, Cell Biology & Physiology, 5Biochemistry & Molecular Biology, the 6Center for Diabetes & Metabolic Diseases, and the 7Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202; 2Department of BioHealth Informatics, Indiana University-Purdue University Indianapolis, Indianapolis, IN, 46202; 8Roudebush VA Medical Center, Indianapolis, IN 46202. *Corresponding Author(s): Carmella Evans-Molina, MD, PhD ([email protected]) Indiana University School of Medicine, 635 Barnhill Drive, MS 2031A, Indianapolis, IN 46202, Telephone: (317) 274-4145, Fax (317) 274-4107 Running Title: Golgi Stress Response in Diabetes Word Count: 4358 Number of Figures: 6 Keywords: Golgi apparatus stress, Islets, β cell, Type 1 diabetes, Type 2 diabetes 1 Diabetes Publish Ahead of Print, published online August 20, 2020 Diabetes Page 2 of 781 ABSTRACT The Golgi apparatus (GA) is an important site of insulin processing and granule maturation, but whether GA organelle dysfunction and GA stress are present in the diabetic β-cell has not been tested. We utilized an informatics-based approach to develop a transcriptional signature of β-cell GA stress using existing RNA sequencing and microarray datasets generated using human islets from donors with diabetes and islets where type 1(T1D) and type 2 diabetes (T2D) had been modeled ex vivo. To narrow our results to GA-specific genes, we applied a filter set of 1,030 genes accepted as GA associated. -
Amino Acid Disorders 105
AMINO ACID DISORDERS 105 Massaro, A. S. (1995). Trypanosomiasis. In Guide to Clinical tions in biological fluids relatively easy. These Neurology (J. P. Mohrand and J. C. Gautier, Eds.), pp. 663– analyzers separate amino acids either by ion-ex- 667. Churchill Livingstone, New York. Nussenzweig, V., Sonntag, R., Biancalana, A., et al. (1953). Ac¸a˜o change chromatography or by high-pressure liquid de corantes tri-fenil-metaˆnicos sobre o Trypanosoma cruzi in chromatography. The results are plotted as a graph vitro: Emprego da violeta de genciana na profilaxia da (Fig. 1). The concentration of each amino acid can transmissa˜o da mole´stia de chagas por transfusa˜o de sangue. then be calculated from the size of the corresponding O Hospital (Rio de Janeiro) 44, 731–744. peak on the graph. Pagano, M. A., Segura, M. J., DiLorenzo, G. A., et al. (1999). Cerebral tumor-like American trypanosomiasis in Most amino acid disorders can be diagnosed by acquired immunodeficiency syndrome. Ann. Neurol. 45, measuring the concentrations of amino acids in 403–406. blood plasma; however, some disorders of amino Rassi, A., Trancesi, J., and Tranchesi, B. (1982). Doenc¸ade acid transport are more easily recognized through the Chagas. In Doenc¸as Infecciosas e Parasita´rias (R. Veroesi, Ed.), analysis of urine amino acids. Therefore, screening 7th ed., pp. 674–712. Guanabara Koogan, Sa˜o Paulo, Brazil. Spina-Franc¸a, A., and Mattosinho-Franc¸a, L. C. (1988). for amino acid disorders is best done using both South American trypanosomiasis (Chagas’ disease). In blood and urine specimens. Occasionally, analysis of Handbook of Clinical Neurology (P. -
Palmitoyl-Protein Thioesterase 1 Deficiency in Drosophila Melanogaster Causes Accumulation
Genetics: Published Articles Ahead of Print, published on February 1, 2006 as 10.1534/genetics.105.053306 Palmitoyl-protein thioesterase 1 deficiency in Drosophila melanogaster causes accumulation of abnormal storage material and reduced lifespan Anthony J. Hickey*,†,1, Heather L. Chotkowski*, Navjot Singh*, Jeffrey G. Ault*, Christopher A. Korey‡,2, Marcy E. MacDonald‡, and Robert L. Glaser*,†,3 * Wadsworth Center, New York State Department of Health, Albany, NY 12201-2002 † Department of Biomedical Sciences, State University of New York, Albany, NY 12201-0509 ‡ Molecular Neurogenetics Unit, Center for Human Genetic Research, Massachusetts General Hospital, Boston, MA 02114 1 current address: Albany Medical College, Albany, NY 12208 2 current address: Department of Biology, College of Charleston, Charleston, SC 294243 3 corresponding author: Wadsworth Center, NYS Dept. Health, P. O. Box 22002, Albany, NY 12201-2002 E-mail: [email protected] 1 running title: Phenotypes of Ppt1-deficient Drosophila key words: Batten disease infantile neuronal ceroid lipofuscinosis palmitoyl-protein thioesterase CLN1 Drosophila corresponding author: Robert L. Glaser Wadsworth Center, NYS Dept. Health P. O. Box 22002 Albany, NY 12201-2002 E-mail: [email protected] phone: 518-473-4201 fax: 518-474-3181 2 ABSTRACT Human neuronal ceroid lipofuscinoses (NCLs) are a group of genetic neurodegenerative diseases characterized by progressive death of neurons in the central nervous system (CNS) and accumulation of abnormal lysosomal storage material. Infantile NCL (INCL), the most severe form of NCL, is caused by mutations in the Ppt1 gene, which encodes the lysosomal enzyme palmitoyl-protein thioesterase 1 (Ppt1). We generated mutations in the Ppt1 ortholog of Drosophila melanogaster in order to characterize phenotypes caused by Ppt1-deficiency in flies.