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https://www.readbyqxmd.com/read/28803436/acute-regulated-expression-of-pendrin-in-human-urinary-exosomes
#1
Ganesh Pathare, Nasser Dhayat, Nilufar Mohebbi, Carsten A Wagner, Lydie Cheval, Thomas J Neuhaus, Daniel G Fuster
It is well known that pendrin, an apical Cl(-)/HCO3(-)exchanger in type B intercalated cells, is modulated by chronic acid-base disturbances and electrolyte intake. To study this adaptation further at the acute level, we analyzed urinary exosomes from individuals subjected to oral acute acid, alkali, and NaCl loading. Acute oral NH4Cl loading (n = 8) elicited systemic acidemia with a drop in urinary pH and an increase in urinary NH4 excretion. Nadir urinary pH was achieved 5 h after NH4Cl loading. Exosomal pendrin abundance was dramatically decreased at 3 h after acid loading...
August 12, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28803391/mutational-analysis-of-the-rb1-gene-and-the-inheritance-patterns-of-retinoblastoma-in-jordan
#2
Yacoub A Yousef, Abdelghani Tbakhi, Maysa Al-Hussaini, Ibrahim AlNawaiseh, Ala Saab, Amal Afifi, Maysa Naji, Mona Mohammad, Rasha Deebajah, Imad Jaradat, Iyad Sultan, Mustafa Mehyar
Retinoblastoma (RB) is a childhood cancer developing in the retina due to RB1 pathologic variant. Herein we are evaluating the oncogenic mutations in the RB1 gene and the inheritance patterns of RB in the Jordanian patients. In this prospective study, the peripheral blood of 50 retinoblastoma patients was collected, genomic DNA was extracted, mutations were identified using Quantitative multiplex PCR (QM-PCR), Allele-specific PCR, Next Generation Sequencing analysis, and Sanger sequencing. In this cohort of 50 patients, 20(40%) patients had unilateral RB and 30(60%) were males...
August 12, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28802248/utility-of-rapid-whole-exome-sequencing-in-the-diagnosis-of-neonatal-niemann-pick-disease-type-c-presenting-with-fetal-hydrops-and-liver-failure
#3
Mersedeh Rohanizadegan, Sarah El-Almery, Anne O'Donnell-Luria, Ivana Mihalek, Peggy Chen, Marilyn Sanders, Kristen Leeman, Megan Cho, Christina Hung, Olaf Bodamer
Rapid whole exome sequencing (rWES) is increasingly used in critically ill newborn infants to inform about diagnosis, clinical management and prognosis. Here we report a male newborn infant with hydrops, pancytopenia and acute liver failure who was listed for liver transplantation. Given the acuity of the presentation, the procedure related morbidity and mortality and lack of diagnosis we employed rWES in the proband and both parents with a turn-around time of 10 business days. rWES returned one maternally inherited, likely pathogenic and one paternally inherited, likely pathogenic variant in NPC1 suggestive of a diagnosis of Niemann Pick disease type C (NPC)...
August 11, 2017: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/28769107/innate-immune-basis-for-rift-valley-fever-susceptibility-in-mouse-models
#4
Rashida Lathan, Dominique Simon-Chazottes, Grégory Jouvion, Ophélie Godon, Marie Malissen, Marie Flamand, Pierre Bruhns, Jean-Jacques Panthier
Rift Valley fever virus (RVFV) leads to varied clinical manifestations in animals and in humans that range from moderate fever to fatal illness, suggesting that host immune responses are important determinants of the disease severity. We investigated the immune basis for the extreme susceptibility of MBT/Pas mice that die with mild to acute hepatitis by day 3 post-infection compared to more resistant BALB/cByJ mice that survive up to a week longer. Lower levels of neutrophils observed in the bone marrow and blood of infected MBT/Pas mice are unlikely to be causative of increased RVFV susceptibility as constitutive neutropenia in specific mutant mice did not change survival outcome...
August 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28755517/morphological-features-of-congenital-dyserythropoietic-anemia-type-i-the-role-of-electron-microscopy-in-diagnosis
#5
Peretz Resnitzky, Dina Shaft, Hanna Shalev, Joseph Kapelushnik, Orly Dgany, Tanya Krasnov, Hannah Tamary
INTRODUCTION: Congenital dyserythropoietic anemias are rare blood disorders characterized by congenital anemia and a wide range of morphological and functional abnormalities of erythroid precursors. OBJECTIVES: To analyze the relative frequency of both light microscopic (LM) and electron microscopic (EM) morphological features of erythroblasts in a large group of patients with molecular proven congenital dyserythropoietic anemia type I (CDAI). METHODS: We retrospectively evaluated the LM and EM of bone marrow (BM) erythroblasts in 35 patients with CDAI...
July 29, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28727801/proponent-or-collaborative-physician-perspectives-and-approaches-to-disease-modifying-therapies-in-sickle-cell-disease
#6
Nitya Bakshi, Cynthia B Sinha, Diana Ross, Kirshma Khemani, George Loewenstein, Lakshmanan Krishnamurti
Sickle cell disease (SCD) is an inherited blood disorder that primarily affects African-American and other ethnic minority populations. There are three available disease-modifying therapies for sickle cell disease: hydroxyurea (HU), bone marrow transplantation (BMT), and chronic blood transfusion (CBT). Since these treatments vary in their therapeutic intent, efficacy in preventing progression of the disease, short and long-term adverse effects, costs and patient burden, the decision-making process regarding these therapies is complicated for both the patient and healthcare provider...
2017: PloS One
https://www.readbyqxmd.com/read/28713862/metabolic-surgery-gastric-bypass-for-the-treatment-of-type-2-diabetes-mellitus
#7
REVIEW
Maria Del Pilar Quevedo, Mariano Palermo, Edgardo Serra, Marianela A Ackermann
Type 2 diabetes mellitus (T2DM) is one of the largest health emergencies of the 21st century given the worldwide increase of obesity during the last decades and its close association. T2DM is an inherited, polygenic and chronic disease caused by the interaction between several genetic variants in genes and the environment. The continuous search for new and more effective tools to achieve appropriate glycemic control became imperative in order to reduce long-term complications and mortality rates related to T2DM...
2017: Translational Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28691229/desmopressin-use-for-minimising-perioperative-blood-transfusion
#8
REVIEW
Michael J Desborough, Kathryn Oakland, Charlotte Brierley, Sean Bennett, Carolyn Doree, Marialena Trivella, Sally Hopewell, Simon J Stanworth, Lise J Estcourt
BACKGROUND: Blood transfusion is administered during many types of surgery, but its efficacy and safety are increasingly questioned. Evaluation of the efficacy of agents, such as desmopressin (DDAVP; 1-deamino-8-D-arginine-vasopressin), that may reduce perioperative blood loss is needed. OBJECTIVES: To examine the evidence for the efficacy of DDAVP in reducing perioperative blood loss and the need for red cell transfusion in people who do not have inherited bleeding disorders...
July 10, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28671349/high-throughput-sequencing-approaches-for-diagnosing-hereditary-bleeding-and-platelet-disorders
#9
K Freson, E Turro
Hereditary bleeding and platelet disorders (BPDs) are characterized by marked genetic heterogeneity, far greater than previously appreciated. The list of genes involved in the regulation of megakaryopoiesis, platelet formation, platelet function and bleeding has been growing rapidly since the introduction of high-throughput sequencing (HTS) approaches in research. Thanks to the gradual adoption of HTS in diagnostic practice, these discoveries are improving the diagnostic yield for BPD patients, who may or may not present with bleeding problems and often have other clinical symptoms unrelated to the blood system...
July 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28637614/classical-inherited-bone-marrow-failure-syndromes-with-high-risk-for-myelodysplastic-syndrome-and-acute-myelogenous-leukemia
#10
REVIEW
Sharon A Savage, Carlo Dufour
The inherited marrow failure syndromes (IBMFS) are a heterogeneous group of diseases characterized by failure in the production of one or more blood lineage. The clinical manifestations of the IBMFS vary according to the type and number of blood cell lines involved, including different combinations of anemia, leukopenia, and thrombocytopenia. In some IBMFS, systemic non-hematologic manifestations, including congenital malformations, mucocutaneous abnormalities, developmental delay, and other medical complications, may be present...
April 2017: Seminars in Hematology
https://www.readbyqxmd.com/read/28623394/disease-specific-hematopoietic-stem-cell-transplantation-in-children-with-inherited-bone-marrow-failure-syndromes
#11
Qian Li, Changying Luo, Chengjuan Luo, Jianmin Wang, Benshang Li, Lixia Ding, Jing Chen
Hematopoietic stem cell transplantation (HSCT) using an optimized conditioning regimen is essential for the long-term survival of patients with inherited bone marrow failure syndromes (IBMFS). We report HSCT in 24 children with Fanconi anemia (FA, n = 12), Diamond-Blackfan anemia (DBA, n = 7), and dyskeratosis congenita (DC, n = 5) from a single HSCT center. The graft source was peripheral blood stem cells (n = 19) or cord blood stem cells (n = 5). FA and DC patients received reduced-intensity conditioning, while DBA patients had myeloablative conditioning...
August 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28598037/atypical-neurofibromatosis-type-1-with-unilateral-limb-hypertrophy-mimicking-overgrowth-syndrome
#12
K Tripolszki, K Farkas, A Sulák, G Szolnoky, B Duga, B Melegh, R G Knox, V E R Parker, R K Semple, L Kemény, M Széll, N Nagy
Neurofibromatosis type 1 (NF1; OMIM 162200), a dominantly inherited multitumor syndrome, results from mutations in the Neurofibromin 1 (NF1) gene. We present the case of a Hungarian woman with the clinical phenotype of NF1 over her whole body and the clinical features of unilateral overgrowth involving her entire left leg. This unusual phenotype suggested either the atypical form of NF1 or the coexistence of NF1 and overgrowth syndrome. Direct sequencing of the genomic DNA isolated from peripheral blood revealed a novel frameshift mutation (c...
June 8, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28561207/genetic-phenotypic-and-interferon-biomarker-status-in-adar1-related-neurological-disease
#13
Gillian I Rice, Naoki Kitabayashi, Magalie Barth, Tracy A Briggs, Annabel C E Burton, Maria Luisa Carpanelli, Alfredo M Cerisola, Cindy Colson, Russell C Dale, Federica Rachele Danti, Niklas Darin, Begoña De Azua, Valentina De Giorgis, Christian G L De Goede, Isabelle Desguerre, Corinne De Laet, Atieh Eslahi, Michael C Fahey, Penny Fallon, Alex Fay, Elisa Fazzi, Mark P Gorman, Nirmala Rani Gowrinathan, Marie Hully, Manju A Kurian, Nicolas Leboucq, Jean-Pierre S-M Lin, Matthew A Lines, Soe S Mar, Reza Maroofian, Laura Martí-Sanchez, Gary McCullagh, Majid Mojarrad, Vinodh Narayanan, Simona Orcesi, Juan Dario Ortigoza-Escobar, Belén Pérez-Dueñas, Florence Petit, Keri M Ramsey, Magnhild Rasmussen, François Rivier, Pilar Rodríguez-Pombo, Agathe Roubertie, Tommy I Stödberg, Mehran Beiraghi Toosi, Annick Toutain, Florence Uettwiller, Nicole Ulrick, Adeline Vanderver, Amy Waldman, John H Livingston, Yanick J Crow
We investigated the genetic, phenotypic, and interferon status of 46 patients from 37 families with neurological disease due to mutations in ADAR1. The clinicoradiological phenotype encompassed a spectrum of Aicardi-Goutières syndrome, isolated bilateral striatal necrosis, spastic paraparesis with normal neuroimaging, a progressive spastic dystonic motor disorder, and adult-onset psychological difficulties with intracranial calcification. Homozygous missense mutations were recorded in five families. We observed a p...
June 2017: Neuropediatrics
https://www.readbyqxmd.com/read/28539246/consideration-of-alternative-causes-of-lactic-acidosis-thiamine-deficiency-in-malignancy
#14
Ryan K Dean, Rogin Subedi, Dalvir Gill, Amitpal Nat
Lactic acidosis is a common metabolic acidosis characterized by increased serum lactate and is usually associated with a decreased blood pH. Lactic acidosis has many different causes but has been differentiated into type A, hypoxic causes, and type B, non-hypoxic causes. Tissue hypoxia, type A, is the most common cause, usually secondary to processes such as sepsis and multi-organ failure. Type A must be differentiated from type B in the correct clinical setting as treatments are vastly different. Type B causes may include drug side-effects, toxins, enzymatic defects, inherited or acquired, any of which may lead to overproduction or underutilization of lactate...
August 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28534044/hsp-and-deafness-neurocristopathy-caused-by-a-novel-mosaic-sox10-mutation
#15
Sandra Donkervoort, Diana Bharucha-Goebel, Pomi Yun, Ying Hu, Payam Mohassel, Ahmet Hoke, Wadih M Zein, Daniel Ezzo, Andrea M Atherton, Ann C Modrcin, Majed Dasouki, A Reghan Foley, Carsten G Bönnemann
OBJECTIVE: To identify the underlying genetic cause in 2 sisters affected with progressive lower extremity spasticity, neuropathy, and early-onset deafness. METHODS: Whole-exome sequencing was performed, and segregation testing of variants was investigated using targeted Sanger sequencing. An inherited paternal mosaic mutation was further evaluated through quantitative analysis of the ratio of mutant vs wild-type allele in genomic DNA from various tissues, including blood, dermal fibroblasts, and saliva...
June 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28508341/mitochondrial-dna-levels-in-huntington-disease-leukocytes-and-dermal-fibroblasts
#16
Paulina Jędrak, Magdalena Krygier, Katarzyna Tońska, Małgorzata Drozd, Magdalena Kaliszewska, Ewa Bartnik, Witold Sołtan, Emilia J Sitek, Anna Stanisławska-Sachadyn, Janusz Limon, Jarosław Sławek, Grzegorz Węgrzyn, Sylwia Barańska
Huntington disease (HD) is an inherited neurodegenerative disorder caused by mutations in the huntingtin gene. Involvement of mitochondrial dysfunctions in, and especially influence of the level of mitochondrial DNA (mtDNA) on, development of this disease is unclear. Here, samples of blood from 84 HD patients and 79 controls, and dermal fibroblasts from 10 HD patients and 9 controls were analysed for mtDNA levels. Although the type of mitochondrial haplogroup had no influence on the mtDNA level, and there was no correlation between mtDNA level in leukocytes in HD patients and various parameters of HD severity, some considerable differences between HD patients and controls were identified...
August 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28462595/intranasal-adeno-associated-virus-mediated-gene-delivery-and-expression-of-human-iduronidase-in-the-central-nervous-system-a-noninvasive-and-effective-approach-for-prevention-of-neurologic-disease-in-mucopolysaccharidosis-type-i
#17
Lalitha R Belur, Alexa Temme, Kelly M Podetz-Pedersen, Maureen Riedl, Lucy Vulchanova, Nicholas Robinson, Leah R Hanson, Karen F Kozarsky, Paul J Orchard, William H Frey, Walter C Low, R Scott McIvor
Mucopolysaccharidosis type I (MPS I) is a progressive, multi-systemic, inherited metabolic disease caused by deficiency of α-L-iduronidase (IDUA). Current treatments for this disease are ineffective in treating central nervous system (CNS) disease due to the inability of lysosomal enzymes to traverse the blood-brain barrier. A noninvasive and effective approach was taken in the treatment of CNS disease by intranasal administration of an IDUA-encoding adeno-associated virus serotype 9 (AAV9) vector. Adult IDUA-deficient mice aged 3 months were instilled intranasally with AAV9-IDUA vector...
July 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28451866/the-116g%C3%A2-%C3%A2-a-msh6-and-ivs1-1121c%C3%A2-%C3%A2-t-pms2-genes-polymorphisms-modulate-the-risk-of-the-sporadic-colorectal-cancer-development-in-polish-population
#18
Piotr Zelga, Karolina Przybyłowska-Sygut, Marta Zelga, Adam Dziki, Ireneusz Majsterek
Colorectal cancer (CRC) is one of the most common cancers worldwide. DNA mismatch repair (MMR) is an evolutionarily conserved process that corrects mismatches generated during DNA replication. MMR defects were found to be associated with hereditary non-polyposis colorectal cancer (HNPCC) and a subset of sporadic colon cancers. The inheritance of common variations in MMR genes may influences individual susceptibility to the development of colorectal cancer. The purpose of the study was to evaluate the association between gene polymorphisms Glu39Gly (c...
April 27, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28450662/comparative-serological-investigation-between-cat-and-tiger-blood-for-transfusion
#19
Naris Thengchaisri, Chayakrit Sinthusingha, Surapong Arthitwong, Panpicha Sattasathuchana
Evidence suggests that non-domesticated felids inherited the same AB-erythrocyte antigens as domestic cats. To study the possible compatibility of tiger blood with that of other endangered felidae, blood samples from captive tigers and domestic cats were subjected to an in vitro study. The objectives of this study were to (1) identify whether the captive tigers had blood type AB and (2) determine the compatibility between the blood of captive tigers and that of domestic cats with a similar blood type. The anti-coagulated blood with ethylenediaminetetraacetic acid of 30 tigers was examined to determine blood type, and a crossmatching test was performed between tiger and cat blood...
June 29, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28435820/costs-of-hospital-admission-on-primary-immunodeficiency-diseases
#20
Kheirollah Gholami, Elaheh Laali, Hassan Abolhassani, Alireza Ahmadvand, Niayesh Mohebbi, Mohammad Reza Javadi, Asghar Aghamohammadi, Nima Rezaei
BACKGROUND: Primary immunodeficiency diseases (PID) are heterogeneous group of inherited disorders mainly characterized by recurrent infections leading to several times hospital admissions. The economic impact of PID is a challenging issue; therefore, this study was designed to determine the medical costs of hospitalizations in this group of patients as an indicator of the direct cost of these diseases. METHODS: One hundred and ten children with PID hospitalized in the Children's Medical Center Hospital, Tehran, Iran were included in this study during Jan 2011 and Jan 2012...
March 2017: Iranian Journal of Public Health
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