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Macrocytic anemia

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https://www.readbyqxmd.com/read/27874969/idiopathic-myelofibrosis-accompanied-by-peritoneal-extramedullary-hematopoiesis-presenting-as-refractory-ascites-in-a-dog
#1
Yolandi Rautenbach, Amelia Goddard, Sarah J Clift
A 2.5-year-old spayed female American Pit Bull Terrier dog presented with a primary complaint of chronic refractory ascites. The dog's CBC displayed a moderate to severe macrocytic, hypochromic, nonregenerative anemia, and a moderate leukopenia as result of a moderate neutropenia and monocytopenia. Microscopic examination of the blood smear showed marked anisocytosis, mild polychromasia, mild acanthocytosis and ovalocytosis, moderate schistocytosis and poikilocytosis, and 4 metarubricytes/100 WBC. Abdominal ultrasonography revealed a homogenous, mild to moderately hyperechoic appearing liver as well as marked amounts of speckled anechoic to slightly hypoechoic peritoneal fluid...
November 22, 2016: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/27870069/suspected-myelodysplastic-myeloproliferative-neoplasm-in-a-feline-leukemia-virus-negative-cat
#2
Amy L Weeden, Kyle R Taylor, Scott P Terrell, Alexander E Gallagher, Heather L Wamsley
A 10-year-old castrated Domestic Short-Haired cat was presented to a primary care veterinarian for a wellness examination and laboratory examination for monitoring of diabetes mellitus. The CBC revealed marked thrombocytosis, leukopenia and macrocytic, normochromic anemia. The cat tested negative for FeLV and feline immunodeficiency virus, but was positive for Mycoplasma haemominutum by PCR. Hematologic abnormalities were not responsive to therapy, so a repeat CBC and a bone marrow aspiration for cytology were performed...
November 21, 2016: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/27860166/treatment-of-antiviral-resistant-recurrent-erythema-multiforme-with-dapsone
#3
Allen S W Oak, Lucia Seminario-Vidal, Naveed Sami
Recurrent erythema multiforme (REM) is a chronic disease characterized by frequent episodes of target cutaneous lesions in an acral distribution. Conventional treatment includes systemic corticosteroids and antiviral therapy. The aim of this study was to evaluate dapsone as a potential steroid sparing-agent for the treatment of REM after a failed trial of at least one antiviral therapy (acyclovir, famciclovir, or valacyclovir). A retrospective chart review was conducted on thirteen patients with a diagnosis of REM who underwent treatment with dapsone after failing at least one antiviral therapy...
November 18, 2016: Dermatologic Therapy
https://www.readbyqxmd.com/read/27857529/severe-hemolytic-disease-of-the-premature-newborn-due-to-rh1-incompatibility-a-case-report
#4
Jean Uwingabiye, Hafid Zahid, Fayçal Labrini, Abdelhak El Khazraji, Anass Yahyaoui, Rachid Hadef, Nezha Messaoudi
We report a case of dramatic outcome of severe hemolytic disease in a newborn due to RH1 incompatibility. A newborn with A RH1 blood group was admitted in the Mohammed V Military Teaching Hospital for the problem of hydrops fetalis associated with RH1 incompatibility. The blood group of his mother, aged 31, was AB RH1-negative and that of his 37 year old father was A RH1. The mother had a history of 4 term deliveries, 3 abortions, and 1 living child. There was no prevention by anti-D immunoglobulin postpartum...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27800099/prevalence-of-anaemia-among-quranic-school-khalawi-students-heiran-in-wad-el-magboul-village-rural-rufaa-gezira-state-central-sudan-a-cross-sectional-study
#5
Mohammed Saeed Elsamani Eltayeb, Awad Eseed Elsaeed, Ahmed Abdalla Mohamedani, Abbas Abdalrahman Assayed
INTRODUCTION: This is a cross sectional descriptive community-based study. The aim was to assess the prevalence of anaemia among quranic schoolchildren in khalawi Wad EL Magboul village, rural Rufaa, Gezira State, central Sudan. METHODS: A sample of 180 male participants were included in the study. Informed consent was obtained. Venous blood samples were obtained to measure the hematological parameters and blood films for malaria parasites. Urine and stool analyses were also done...
2016: Pan African Medical Journal
https://www.readbyqxmd.com/read/27780269/comparative-assessment-of-vitamin-b12-folic-acid-and-homocysteine-levels-in-relation-to-p53-expression-in-megaloblastic-anemia
#6
Manish K Yadav, Nandini M Manoli, SubbaRao V Madhunapantula
BACKGROUND: Megaloblastic anemia (MBA), also known as macrocytic anemia, is a type of anemia characterized by decreased number of RBCs as well as the presence of unusually large, abnormal and poorly developed erythrocytes (megaloblasts), which fail to enter blood circulation due to their larger size. Lack of vitamin-B12 (VB12) and / or folate (Vitamin-B9, VB9) with elevated homocysteine is the key factor responsible for megaloblastic anemia. Prior studies have demonstrated the induction of apoptosis in these abnormal under-developed erythrocytes...
2016: PloS One
https://www.readbyqxmd.com/read/27732904/a-new-in-frame-deletion-in-ribosomal-protein-s19-in-a-chinese-infant-with-diamond-blackfan-anemia
#7
Jing-Ying Zhang, Ming Jia, Hai-Zhao Zhao, Ze-Bin Luo, Wei-Qun Xu, He-Ping Shen, Yong-Min Tang
Diamond-Blackfan anemia (DBA) is a congenital erythroid aplasia that usually presents as macrocytic anemia during infancy. Ribosomal protein S19 (RPS19) is identified as the first gene associated with DBA. RPS19 is mutated in 25% of DBA patients, but its role in DBA pathogenesis remains to be elucidated. We have identified a novel heterozygous frameshift mutation in RPS19 gene in a DBA child presenting with profound anemia after birth. A single nucleotide heterozygous deletion (C.251delG) results in frameshift in RPS19 gene in exon 4 at codon 84 with possible premature stop codon (p...
November 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/27729749/ataxic-gait-following-total-gastrectomy-for-gastric-cancer
#8
Chang Ho Hwang, Dong Jin Park, Gyu Yeol Kim
A 58-year-old woman, who had undergone total gastrectomy for early gastric cancer 9 years previously, visited the outpatient clinic complaining of progressive difficulty in walking for 15 d. Laboratory examinations showed macrocytic anemia and a decreased serum vitamin B12 concentration and increased serum concentrations of folate, vitamin E and copper. Magnetic resonance imaging showed multifocal high signal intensities along the posterior column of the cervical and thoracic spinal cord. Treatment consisted of intramuscular injections of vitamin B12 for 7 d, which increased her serum level of vitamin B12 to normal...
October 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27715070/-clinically-relevant-possibilities-and-limits-of-differential-diagnosis-of-megaloblastic-anemia-and-myelodysplastic-syndrome%C3%A2-refractory-anemia-type-in-bone-marrow-biopsies
#9
Petra Vašeková, Peter Szépe, Ján Marcinek, Tomáš Balhárek, Lukáš Plank
INTRODUCTION: Megaloblastic anemia (MA) represents a subtype of macrocytic anemia caused by impaired DNA synthesis, mostly due to folate and vitamin B12 deficiency. Its mildest forms lead to macrocytosis without concomitant anemia, but more severe forms to thrombocytopenia and/or leucopenia as well. In majority of the cases, the diagnosis of MA dose not represent a serious clinical problem, however, other causes of macrocytosis including myelodysplastic syndrome (MDS) must be excluded...
2016: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27694217/carboxy-terminal-deletion-of-the-hdl-receptor-reduces-receptor-levels-in-liver-and-steroidogenic-tissues-induces-hypercholesterolemia-and-causes-fatal-heart-disease
#10
Rinku Pal, Qingen Ke, German A Pihan, Ayce Yesilaltay, Marsha L Penman, Li Wang, Chandramohan Chitraju, Peter M Kang, Monty Krieger, Olivier Kocher
The HDL receptor SR-BI mediates the transfer of cholesteryl esters from HDL to cells and controls HDL abundance and structure. Depending on the genetic background, loss of SR-BI causes hypercholesterolemia, anemia, reticulocytosis, splenomegaly, thrombocytopenia, female infertility, and fatal coronary heart disease (CHD). The carboxy terminus of SR-BI ((505)QEAKL(509)) must bind to the cytoplasmic adaptor PDZK1 for normal hepatic-but not steroidogenic cell-expression of SR-BI protein. To determine whether SR-BI's carboxy terminus is also required for normal protein levels in steroidogenic cells, we introduced into SR-BI's gene a (507)Ala/STOP mutation that produces a truncated receptor (SR-BIΔCT)...
December 1, 2016: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/27663896/heterozygous-sf3b1k700e-mutations-induce-characteristic-features-of-mds
#11
(no author information available yet)
Sf3b1(+/K700E) mice exhibit macrocytic anemia, erythroid dysplasia, and long-term HSC expansion.
September 23, 2016: Cancer Discovery
https://www.readbyqxmd.com/read/27622333/physiologic-expression-of-sf3b1-k700e-causes-impaired-erythropoiesis-aberrant-splicing-and-sensitivity-to-therapeutic-spliceosome-modulation
#12
Esther A Obeng, Ryan J Chappell, Michael Seiler, Michelle C Chen, Dean R Campagna, Paul J Schmidt, Rebekka K Schneider, Allegra M Lord, Lili Wang, Rutendo G Gambe, Marie E McConkey, Abdullah M Ali, Azra Raza, Lihua Yu, Silvia Buonamici, Peter G Smith, Ann Mullally, Catherine J Wu, Mark D Fleming, Benjamin L Ebert
More than 80% of patients with the refractory anemia with ring sideroblasts subtype of myelodysplastic syndrome (MDS) have mutations in Splicing Factor 3B, Subunit 1 (SF3B1). We generated a conditional knockin mouse model of the most common SF3B1 mutation, Sf3b1(K700E). Sf3b1(K700E) mice develop macrocytic anemia due to a terminal erythroid maturation defect, erythroid dysplasia, and long-term hematopoietic stem cell (LT-HSC) expansion. Sf3b1(K700E) myeloid progenitors and SF3B1-mutant MDS patient samples demonstrate aberrant 3' splice-site selection associated with increased nonsense-mediated decay...
September 12, 2016: Cancer Cell
https://www.readbyqxmd.com/read/27552384/a-review-of-azathioprine-associated-hepatotoxicity-and-myelosuppression-in-myasthenia-gravis
#13
Kristin L Jack, Wilma J Koopman, Denise Hulley, Michael W Nicolle
OBJECTIVES: Myasthenia gravis (MG) is an autoimmune disorder in which antibodies interfere with neuromuscular transmission. Azathioprine (AZA) is an immunosuppressant frequently used for treatment of various autoimmune conditions, including MG. The literature suggests that the rates of AZA-associated hepatotoxicity and myelosuppression in MG are highly variable. Published studies have not formally analyzed their pattern, severity, timing, and/or recovery. We assessed the prevalence, pattern and timing of AZA associated toxicity in a large group of MG patients...
September 2016: Journal of Clinical Neuromuscular Disease
https://www.readbyqxmd.com/read/27550848/murine-tribbles-homolog-2-deficiency-affects-erythroid-progenitor-development-and-confers-macrocytic-anemia-on-mice
#14
Kou-Ray Lin, Hsin-Fang Yang-Yen, Huang-Wei Lien, Wei-Hao Liao, Chang-Jen Huang, Liang-In Lin, Chung-Leung Li, Jeffrey Jong-Young Yen
Tribbles homolog 2 (Trib2) is a member of Tribbles protein pseudokinases and involves in apoptosis, autoimmunity, cancer, leukemia and erythropoiesis, however, the physiological function of Trib2 in hematopoietic system remains to be elucidated. Here, we report that Trib2 knockout (KO) mice manifest macrocytic anemia and increase of T lymphocytes. Although Trib2 deficient RBCs have similar half-life as the control RBCs, Trib2 KO mice are highly vulnerable to oxidant-induced hemolysis. Endogenous Trib2 mRNA is expressed in early hematopoietic progenitors, erythroid precursors, and lymphoid lineages, but not in mature RBCs, myeloid progenitors and granulocytes...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27473652/vitamin-b12-deficiency-presenting-with-neurological-dysfunction-in-an-adolescent
#15
Coral M Stredny, Olivia Frosch, Samata Singhi, Elissa Furutani, Adam D Durbin, Rachael F Grace, Nicole J Ullrich
BACKGROUND: Vitamin B12 deficiency is classically encountered in the adult Caucasian population and manifests as a subacute combined degeneration in the presence or absence of macrocytic anemia. However, B12 deficiency is extremely rare in children in developed countries, and pernicious anemia is even rarer etiology of this deficiency. The clinical presentation of B12 deficiency in children is not as easily recognizable or well-characterized and may result in missed or delayed diagnosis...
September 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/27408412/new-codanin-1-gene-mutations-in-a-italian-patient-with-congenital-dyserythropoietic-anemia-type-i-and-heterozygous-beta-thalassemia
#16
Elena D'Alcamo, V Agrigento, L Pitrolo, S Sclafani, R Barone, G Calvaruso, V Buffa, A Maggio
Congenital dyserythropoietic anemia type I is an autosomal recessive disorder associated with macrocytic anemia, ineffective erythropoiesis, iron overloading and characterized by abnormal chromatin ultrastructure in erythroblasts such as internuclear chromatin bridges, spongy heterochromatin and invagination of the nuclear membrane. A 58-year-old Causasian man with chronic hemolytic anemia, heterozygous for β (+) -globin IVS1, nt110 G>A mutation (causing abnormal alpha:beta globin chain ratio) showed clinical, laboratory and hematological features suggesting diagnosis of CDA1...
June 2016: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/27386247/studies-on-the-alterations-in-haematological-indices-micronuclei-induction-and-pathological-marker-enzyme-activities-in-channa-punctatus-spotted-snakehead-perciformes-channidae-exposed-to-thermal-power-plant-effluent
#17
Mehjbeen Javed, Irshad Ahmad, Ajaz Ahmad, Nazura Usmani, Masood Ahmad
The present study was conducted to assess the toxicity of thermal power plant effluent containing heavy metals (Fe > Cu > Zn > Mn > Ni > Co > Cr) on haematological indices, micronuclei, lobed nuclei and activity of pathological marker enzymes [alkaline phosphatase (ALP), aspartate transferase (AST), alanine transferase (ALT) and creatine kinase (CK)] in Channa punctatus. Total erythrocyte count (-54.52 %), hemoglobin (-36.98 %), packed cell volume (-36.25 %), mean corpuscular hemoglobin concentration (-1...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27352093/causes-of-macrocytic-anemia-among-628-patients-mean-corpuscular-volumes-of-114-and-130%C3%A2-fl-as-critical-markers-for-categorization
#18
Natsuko Takahashi, Junichi Kameoka, Naoto Takahashi, Yoshiko Tamai, Kazunori Murai, Riko Honma, Hideyoshi Noji, Hisayuki Yokoyama, Yasuo Tomiya, Yuichi Kato, Kenichi Ishizawa, Shigeki Ito, Yoji Ishida, Kenichi Sawada, Hideo Harigae
There have been no studies on the distribution of causes of macrocytic anemia with respect to mean corpuscular volume (MCV) cutoff values. We retrospectively investigated the causes of macrocytic anemia (MCV ≥100 fL) among 628 patients who visited the outpatient hematology clinic in Tohoku University Hospital. To ensure data validity, we also analyzed data from 307 patients in eight other hospitals in the Tohoku district. The leading causes of macrocytic anemia (number of patients, %) were myelodysplastic syndromes (121, 19...
September 2016: International Journal of Hematology
https://www.readbyqxmd.com/read/27316517/very-early-onset-of-autoimmune-thyroiditis-in-a-toddler-with-severe-hypothyroidism-presentation-a-case-report
#19
Pierluigi Marzuillo, Anna Grandone, Silverio Perrotta, Laura Ruggiero, Carlo Capristo, Caterina Luongo, Emanuele Miraglia Del Giudice, Laura Perrone
BACKGROUND: In infants under 3 years of age acquired primary hypothyroidism caused by autoimmune thyroiditis is very rare. Hypothyroidism can manifest with different signs and symptoms and has a wide range of presentations from subclinical hypothyroidism to overt form. We describe a child with acquired autoimmune thyroiditis during a very early period of life and with a severe hypothyroidism presentation. CASE PRESENTATION: A 22-month-old white male patient with normal neonatal screening presented with a six-month history of asthenia and cutaneous pallor...
2016: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/27260753/spliceosomal-component-sf3b1-is-essential-for-hematopoietic-differentiation%C3%A2-in-zebrafish
#20
Adriana De La Garza, Rosannah C Cameron, Sara Nik, Sara G Payne, Teresa V Bowman
SF3B1 (Splicing factor 3b, subunit 1) is one of the most commonly mutated factors in myelodysplastic syndrome (MDS). Although the genetic correlation between SF3B1 mutations and MDS etiology are quite strong, no in vivo model currently exists to explore how SF3B1 loss alters blood cell development. Using zebrafish mutants, we show here that proper function of Sf3b1 is required for all hematopoietic lineages. As in MDS patients, zebrafish sf3b1 mutants develop a macrocytic-anemia-like phenotype due to a block in maturation at a late progenitor stage...
September 2016: Experimental Hematology
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