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Nucleated red blood cells

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https://www.readbyqxmd.com/read/28482628/red-blood-cell-and-platelet-parameters-are%C3%A2-sepsis-predictors-in-an-escherichia-coli%C3%A2-induced-lethal-porcine-model
#1
Judit Tóth, Ildikó Beke Debreceni, Mariann Berhés, Endre Hajdú, Ádám Deák, Katalin Pető, Judit Szabó, Norbert Németh, Béla Fülesdi, János Kappelmayer
OBJECTIVE: In a fulminant porcine sepsis model, we determined the kinetics of hypoxia induced changes in relation to sepsis parameters and markers of organ damage. METHODS: Female pigs were challenged by live Escherichia coli and samples were analysed up to 4 hours. Bone marrow reactions were determined by analysing immature forms of peripheral blood cells by a hematology analyser and light microscopy. Platelet mitochondrial membrane depolarisation was determined by flow cytometry...
May 5, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28467759/nucleated-red-blood-cells-as-a-marker-of-acute-and-chronic-fetal-hypoxia-in-a-rat-model
#2
Victoria K Minior, Brian Levine, Asaf Ferber, Seth Guller, Michael Y Divon
OBJECTIVE: To examine the relationship between duration of fetal hypoxia, nucleated red blood cell (NRBC) count, and fetal growth. METHODS: Pregnant rats were exposed to a severe hypoxia (9.5%-10% O2) for varying time intervals (2, 6, 12, 24, 48, and 120 hours; n=4 for each time interval) immediately prior to delivery at term. Normoxic controls were exposed to room air (21% O2) and matched for all other study variables (n=4 rats for each time interval). Pups were delivered via hysterotomy while maintaining exposure gas concentrations...
April 28, 2017: Rambam Maimonides Medical Journal
https://www.readbyqxmd.com/read/28428831/cord-blood-hematopoietic-cells-from-preterm-infants-display-altered-dna-methylation-patterns
#3
Olivia M de Goede, Pascal M Lavoie, Wendy P Robinson
BACKGROUND: Premature infants are highly vulnerable to infection. This is partly attributable to the preterm immune system, which differs from that of the term neonate in cell composition and function. Multiple studies have found differential DNA methylation (DNAm) between preterm and term infants' cord blood; however, interpretation of these studies is limited by the confounding factor of blood cell composition. This study evaluates the epigenetic impact of preterm birth in isolated hematopoietic cell populations, reducing the concern of cell composition differences...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28422403/blood-chimerism-in-dizygotic-monochorionic-twins-during-5-years-observation
#4
M H Dziegiel, M H Hansen, S Haedersdal, A N Barrett, K Rieneck, K M Main, A T Hansen, F B Clausen
Dizygotic monochorionic twin pregnancies can result in blood chimerism due to in utero twin-to-twin exchange of stem cells. In this case, we examined the proportion of allogeneic red blood cells by flow cytometry and the proportion of allogeneic nucleated cells by digital polymerase chain reaction at 7 months and again at 5 years. We found an increase in the proportion of allogeneic cells from 63% to 89% in one twin, and a similar increase in autologous cells in the other twin from 57% to 84%. A paradigm for stem cell therapy could be modeled on this case: induction of tolerance and chimerism by antenatal transfusion of donor stem cells...
April 19, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28395431/-nix-mediated-mitochondrial-autophagy-in-pathogenesis-of-myelodysplastic-syndrome-anemia
#5
L Y Yang, N B Cui, H Q Wang, R Fu, W Qu, E B Ruan, X M Wang, G J Wang, Y H Wu, H Liu, J Song, J Guan, L M Xing, L J Li, H J Jiang, H Liu, Y H Wang, C Y Liu, W Zhang, Z H Shao
Objective: To investigate the change of NIX level of bone marrow nucleated red blood cells in anemia patients with myelodysplastic syndromes (MDS), to explore the significance of NIX-mediated mitochondrial autophagy in the pathogenesis of MDS anemia. Methods: A total of 54 patients with MDS diagnosed in the Department of Hematology of General Hospital, Tianjin Medical University from July 2015 to July 2016 were enrolled into the MDS group, 33 cases of immune thrombocytopenia or idiopathic leukopenia as controls...
April 11, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28390987/cryopreserved-cd34-cell-dose-but-not-total-nucleated-cell-dose-influences-hematopoietic-recovery-and-extensive-chronic-graft-versus-host-disease-after-single-unit-cord-blood-transplantation-in-adult-patients
#6
Takaaki Konuma, Seiko Kato, Maki Oiwa-Monna, Susumu Tanoue, Miho Ogawa, Masamichi Isobe, Arinobu Tojo, Satoshi Takahashi
Low cryopreserved total nucleated cell (TNC) dose in a cord blood (CB) unit has been shown to be associated with engraftment failure and mortality after single-unit cord blood transplantation (CBT) in adults. Although CB banks offer specific characteristics of cryopreserved cell dose, such as TNC, CD34(+) cells, and colony-forming unit for granulocyte/macrophage (CFU-GM), the impact of each cell dose on engraftment and outcomes after single-unit CBT in adults remains unclear. We retrospectively analyzed the results of 306 CBTs for 261 adult patients in our institution between 1998 and 2016...
April 5, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28382682/cerebrospinal-fluid-analysis-in-recumbent-adult-dairy-cows-with-or-without-spinal-cord-lesions
#7
D Achard, D Francoz, C Grimes, A Desrochers, S Nichols, M Babkine, G Fecteau
BACKGROUND: Diagnosis of central nervous system (CNS) lesions in recumbent dairy cattle (RDC) is challenging because neurologic examination is limited and medical imaging often is challenging or unrewarding. Cerebrospinal fluid (CSF) analysis is useful in the diagnosis of CNS disorders in cattle. However, its utility in identifying spinal cord lesions in RDC remains to be evaluated. HYPOTHESIS/OBJECTIVES: We hypothesized that CSF analysis would discriminate between RDC with and without spinal cord lesions...
May 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28326960/placental-pathologic-features-in-fetomaternal-hemorrhage-detected-by-flow-cytometry
#8
Natasha E Lewis, Laura Marszalek, Linda M Ernst
Background Fetomaternal hemorrhage (FMH) is a poorly understood entity that can have significant clinical effects. Flow cytometry is a reliable and relatively new method for FMH diagnosis. The objective of this study was to correlate placental pathology with FMH detected by flow cytometry. Methods All patients with available placentas and FMH flow cytometric testing performed from 2009 to 2015 were retrospectively reviewed. Cases were defined as ≥0.10% fetal red blood cells (RBCs) in the maternal circulation while controls contained <0...
March 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28259788/bisphenol-a-bisphenol-s-bisphenol-f-and-bisphenol-af-induce-different-oxidative-stress-and-damage-in-human-red-blood-cells-in-vitro-study
#9
Aneta Maćczak, Monika Cyrkler, Bożena Bukowska, Jaromir Michałowicz
Bisphenol A (BPA) and its analogs are widely used in the production of various everyday use products, which leads to a common exposure of humans to these substances. The effect of bisphenols on oxidative stress parameters has not been described in detail in non-nucleated cells, therefore, we have decided to evaluate the impact of BPA and its analogs, i.e. bisphenol S (BPS), bisphenol F (BPF) and bisphenol AF (BPAF) on reactive oxygen species (ROS) formation, lipid peroxidation, glutathione (GSH) level and the activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) in human erythrocytes...
March 1, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28253358/epithelial-stem-cells-are-formed-by-small-particles-released-from-particle-producing-cells
#10
Wuyi Kong, Xiao Ping Zhu, Xiu Juan Han, Mu Nuo, Hong Wang
Recent spatiotemporal report demonstrated that epidermal stem cells have equal potential to divide or differentiate, with no asymmetric cell division observed. Therefore, how epithelial stem cells maintain lifelong stem-cell support still needs to be elucidated. In mouse blood and bone marrow, we found a group of large cells stained strongly for eosin and containing coiled-tubing-like structures. Many were tightly attached to each other to form large cellular clumps. After sectioning, these large cell-clumps were composed of not cells but numerous small particles, however with few small "naked" nuclei...
2017: PloS One
https://www.readbyqxmd.com/read/28177519/methionine-35-sulphoxide-reduces-toxicity-of-a%C3%AE-in-red-blood-cell
#11
Cristiana Carelli-Alinovi, Francesco Misiti
BACKGROUND: The oxidation of methionine residue in position 35 of Ab to sulphoxide (Ab-sulphoxide) has the ability to deeply modify wild-type Ab 1-42 (Ab) neurotoxic action. Our previous studies suggest that in nucleated cells, lower toxicity of Ab-sulphoxide might result not from structural alteration, but from elevation of methionine sulphoxide reductase A (MsrA) activity and mRNA levels. DESIGN: On this basis, we hypothesised that red blood cell (RBC), a cell devoid almost completely of MsrA activity, shares with nucleated cells an antioxidant system induced by methionine 35 sulphoxide, responsible for the lower toxicity of Ab-sulphoxide in RBC...
April 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28176612/comparison-of-the-sysmex-xt-2000iv-with-microscopic-differential-counts-of-canine-bone-marrow
#12
Iris Pernecker, Natali B Bauer, Sigrid Johannes, Melanie Ginder, Johannes H Harleman, Andreas Moritz
Canine bone marrow is frequently assessed in the advanced preclinical research environment. Automated analysis provides time savings and objectivity over the gold standard of microscopic (cytologic) evaluation. We compared the analysis of 90 canine bone marrow samples by the Sysmex XT-2000iV hematology analyzer (Sysmex Corp., Kobe, Japan) with cytologic evaluation. Gates for cell populations were created in the system's WBC/BASO channel. Variables "total nucleated red blood cells" (total_NRBC), "poly- and orthochromatic nucleated red blood cells" (poly_orth_NRBC), "total neutrophils" (total_NEUT), "mature neutrophils" (mature_NEUT), and myeloid-to-erythroid (M:E) ratio were compared with cytologic evaluation...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28121747/relationship-between-some-single-nucleotide-polymorphism-and-response-to-hydroxyurea-therapy-in-iranian-patients-with-%C3%AE-thalassemia-intermedia
#13
Mehran Karimi, Tahereh Zarei, Sezaneh Haghpanah, Mohamad Moghadam, Ahmad Ebrahimi, Narges Rezaei, Ghazaleh Heidari, Afsaneh Vazin, Maryam Khavari, Hamid R Miri
OBJECTIVE: To evaluate the possible relationship between hydroxyurea (HU) response and some single-nucleotide polymorphism (SNP) in patients affected by β-thalassemia intermedia. MATERIALS AND METHODS: In this cross-sectional study, 100 β-thalassemia intermedia patients who were taking HU with a dose of 8 to 15 mg/kg body weight per day for a period of at least 6 months were randomly selected between February 2013 and October 2014 in southern Iran. HU response was defined based on decrease or cessation of the blood transfusion need and evaluation of Hb level...
May 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28119472/pseudomonas-aeruginosa-pore-forming-exolysin-and-type-iv-pili-cooperate-to-induce-host-cell-lysis
#14
Pauline Basso, Michel Ragno, Sylvie Elsen, Emeline Reboud, Guillaume Golovkine, Stephanie Bouillot, Philippe Huber, Stephen Lory, Eric Faudry, Ina Attrée
Clinical strains of Pseudomonas aeruginosa lacking the type III secretion system genes employ a toxin, exolysin (ExlA), for host cell membrane disruption. Here, we demonstrated that ExlA export requires a predicted outer membrane protein, ExlB, showing that ExlA and ExlB define a new active two-partner secretion (TPS) system of P. aeruginosa In addition to the TPS signals, ExlA harbors several distinct domains, which include one hemagglutinin domain, five arginine-glycine-aspartic acid (RGD) motifs, and a C-terminal region lacking any identifiable sequence motifs...
January 24, 2017: MBio
https://www.readbyqxmd.com/read/28095473/the-asymmetric-cell-division-regulators-par3-scribble-and-pins-gpsm2-are-not-essential-for-erythroid-development-or-enucleation
#15
Christina B Wölwer, Nathan Gödde, Luke B Pase, Imogen A Elsum, Krystle Y B Lim, Faruk Sacirbegovic, Carl R Walkley, Sarah Ellis, Shigeo Ohno, Fumio Matsuzaki, Sarah M Russell, Patrick O Humbert
Erythroid enucleation is the process by which the future red blood cell disposes of its nucleus prior to entering the blood stream. This key event during red blood cell development has been likened to an asymmetric cell division (ACD), by which the enucleating erythroblast divides into two very different daughter cells of alternate molecular composition, a nucleated cell that will be removed by associated macrophages, and the reticulocyte that will mature to the definitive erythrocyte. Here we investigated gene expression of members of the Par, Scribble and Pins/Gpsm2 asymmetric cell division complexes in erythroid cells, and functionally tested their role in erythroid enucleation in vivo and ex vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28091810/severe-lead-toxicosis-in-a-lionhead-rabbit
#16
Kristen M Walter, Karyn Bischoff, Ricardo de Matos
INTRODUCTION: Lead toxicosis occurs in veterinary patients, with few reports involving rabbits, and no previous reports using oral calcium disodium EDTA. CASE REPORT: A 7-year-old male castrated Lionhead rabbit presented to the Cornell University Hospital for Animals (CUHA) for evaluation after a 2-day history of lethargy and a 2-week history of hyporexia. The patient had been observed pulling paint from the walls of the home, a house built circa 1900, in the months prior to presentation...
March 2017: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/28079317/human-umbilical-cord-blood-cd34-positive-cells-as-predictors-of-the-incidence-and-short-term-outcome-of-neonatal-hypoxic-ischemic-encephalopathy-a-pilot-study
#17
Sahar M A Hassanein, Mohamed Hassan Nasr Eldin, Hanaa A Amer, Adel E Abdelhamid, Moustafa El Houssinie, Abir Ibrahim
BACKGROUND AND PURPOSE: Neonatal hypoxic-ischemic encephalopathy (HIE) is one of the leading causes of neurological handicap in developing countries. Human umbilical cord blood (hUCB) CD34-positive (CD34⁺) stem cells exhibit the potential for neural repair. We tested the hypothesis that hUCB CD34⁺ stem cells and other cell types [leukocytes and nucleated red blood cells (NRBCs)] that are up-regulated during the acute stage of perinatal asphyxia (PA) could play a role in the early prediction of the occurrence, severity, and mortality of HIE...
January 2017: Journal of Clinical Neurology
https://www.readbyqxmd.com/read/28057383/reference-values-for-nucleated-red-blood-cells-and-serum-lactate-in-very-and-extremely-low-birth-weight-infants-in-the-first-week-of-life
#18
Martin Poryo, Antonia Wissing, Aylin Aygün, Jürgen Geisel, Stefan Wagenpfeil, Michael Zemlin, Sascha Meyer
STUDY PURPOSE: To provide reference values for nucleated red blood cells and serum lactate concentrations in very and extremely low birth weight (VLBW/ELBW) infants in the first week of life. PATIENTS AND METHODS: Retrospective data analysis of serial, daily measurements of NRBC counts and serum lactate during the first 6days of life in VLBW and ELBW infants. RESULTS: In total, 250 infants<1500g were included in this study. Intrauterine growth retardation (IUGR) was seen in 87 (34...
January 2, 2017: Early Human Development
https://www.readbyqxmd.com/read/28050380/coincidental-finding-of-beta-thalassaemia-minor-in-a-patient-of-lacquer-thinner-poisoning-presenting-as-methaemoglobinemia
#19
Charu Agarwal, Anisha Mohanpuria, Gurdeep Buxi, Vijay Kumar
Lacquer thinner, commonly used for removing household paints, is known to contain various aromatic hydrocarbons and naphtha; if ingested, may cause methaemoglobinemia. We report a case of 13-year-old girl who presented with episodes of vomiting, abdominal pain and numbness of limbs. Peripheral blood smear showed few fragmented erythrocytes and 10-12 nucleated red blood cells /100 white blood cells. Reticulocyte count was 15% with presence of Heinz bodies. There was a history of accidental ingestion of lacquer paint thinner...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28042208/utility-of-peripheral-film-findings-and-its-correlation-with-automated-analyzer-an-audit-from-tertiary-care-hospital
#20
Sidra Asad, Imran Ahmed, Natasha Ali
BACKGROUND AND OBJECTIVE: With the advent of automated hematology analyzer, the use of traditional microscopy of blood film has become limited. The objective of our study was to determine the percentage of peripheral blood smear review in our institution in the era of automation and to identify reasons of manual review. MATERIALS AND METHODS: This was a prospective audit from January 1, 2015, to January 15, 2015. Consecutive complete blood count (CBC) samples and peripheral smear requests made up the sample size...
January 2017: Journal of Laboratory Physicians
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