835 results match your criteria Macrocytosis


Histograms of Complete Blood Counts in Dogs: Maximizing Diagnostic Information.

Top Companion Anim Med 2018 Dec 3;33(4):141-146. Epub 2018 Jun 3.

Companion Animal Clinic, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece.

Histograms, which are an integral part of the automated complete blood count, are now available through most of the automatic hematology analyzers used in veterinary clinical practice. Data concerning the size and number of blood cells are graphically presented in histograms, and their variations are also illustrated. Important information that is not apparent from numerical results are sometimes provided by histograms. Read More

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December 2018
1 Read

Relationship between cobalamin and folate deficiencies and anemia in dogs.

J Vet Intern Med 2018 Nov 29. Epub 2018 Nov 29.

Clinical Pathology, IDEXX Laboratories, New York, New York.

Background: Megaloblastic, nonregenerative anemia is a well-known consequence of cobalamin or folate deficiencies in humans but is not recognized in hypocobalaminemic or hypofolatemic dogs. Establishment of relationships between hypocobalaminemia or hypofolatemia and hematologic disease would encourage vitamin B testing, and potentially supplementation, in anemic dogs.

Objectives: To determine the prevalence of anemia in hypocobalaminemic or hypofolatemic dogs and to report the prevalence of hypocobalaminemia and hypofolatemia and nonregenerative anemia, macrocytosis, and anisocytosis in anemic dogs. Read More

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November 2018
4 Reads

Biallelic mutations in DNA ligase 1 underlie a spectrum of immune deficiencies.

J Clin Invest 2018 Dec 5;128(12):5489-5504. Epub 2018 Nov 5.

Division of Clinical Immunology, Departments of Medicine and Pediatrics, and.

We report the molecular, cellular, and clinical features of 5 patients from 3 kindreds with biallelic mutations in the autosomal LIG1 gene encoding DNA ligase 1. The patients exhibited hypogammaglobulinemia, lymphopenia, increased proportions of circulating γδT cells, and erythrocyte macrocytosis. Clinical severity ranged from a mild antibody deficiency to a combined immunodeficiency requiring hematopoietic stem cell transplantation. Read More

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December 2018
8 Reads

ACTN1 mutations lead to a benign form of platelet macrocytosis not always associated with thrombocytopenia.

Br J Haematol 2018 Oct 23;183(2):276-288. Epub 2018 Oct 23.

Department of Internal Medicine, IRCCS Policlinico San Matteo Foundation and University of Pavia, Pavia, Italy.

The inherited thrombocytopenias (IT) are a heterogeneous group of diseases resulting from mutations in more than 30 different genes. Among them, ACTN1-related thrombocytopenia (ACTN1-RT; Online Mendelian Inheritance in Man: 615193) is one of the most recently identified forms. It has been described as a mild autosomal dominant macrothrombocytopenia caused by mutations in ACTN1, a gene encoding for one of the two non-muscle isoforms of α-actinin. Read More

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October 2018
2 Reads

Dermatologic findings of vitamin B deficiency in infants.

Pediatr Dermatol 2018 Nov 11;35(6):796-799. Epub 2018 Oct 11.

Division of Pediatric Neurology, Department of Pediatrics, Dayanand Medical College & Hospital, Ludhiana, Punjab, India.

Background/objectives: Vitamin B deficiency in infants is uncommonly reported from developed countries and generally lacks dermatologic manifestations. On the contrary, infantile vitamin B deficiency is common in India and cutaneous manifestations are a constant feature, although often overshadowed by neurologic and hematological manifestations. The aim of this study was to describe the skin changes of vitamin B deficiency in infants. Read More

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November 2018
2 Reads

Hidden myelodysplastic syndrome (MDS): A prospective study to confirm or exclude MDS in patients with anemia of uncertain etiology.

Int J Lab Hematol 2018 Oct 5. Epub 2018 Oct 5.

Hematology, Hospital Universitario de Salamanca-IBSAL, Salamanca, Spain.

Introduction: Diagnosis of myelodysplastic syndromes (MDSs) when anemia is the only abnormality can be complicated. The aim of our study was to investigate the primary causes of anemia and/or macrocytosis of uncertain etiology.

Methods: We conducted a multicenter, prospective study over 4 months in three hematology laboratories. Read More

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October 2018
8 Reads

Vitamin B deficiency-induced pseudothrombotic microangiopathy without macrocytosis presenting with acute renal failure: a case report.

J Med Case Rep 2018 Oct 3;12(1):296. Epub 2018 Oct 3.

Divisione di Clinica Medica, Ospedale San Gerardo, Monza, Italy.

Background: Vitamin B deficiency-induced thrombotic microangiopathy, known as pseudothrombotic microangiopathy, is a rare condition which resembles the clinical features of thrombotic thrombocytopenic purpura but requires a markedly different treatment. Most cases of vitamin B deficiency have only mild hematological findings, but in approximately 10% of patients life-threatening conditions have been reported.

Case Presentation: We report a case of a 46-year-old Moroccan man presenting with severe hemolytic anemia, thrombocytopenia, and renal failure in absence of macrocytosis, thus mimicking a genuine thrombotic thrombocytopenic purpura. Read More

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October 2018
2 Reads

Thalassemia minor presenting with vitamin B deficiency, paraparesis, and microcytosis.

J Blood Med 2018 4;9:141-144. Epub 2018 Sep 4.

Internal Medicine Department, Doctor Soliman Fakeeh Hospital, Jeddah, Saudi Arabia,

Vitamin B is essential for proper neurological functioning, and its deficiency may cause a wide range of neuropsychiatric and hematological manifestations. We report a case of a previously healthy 32-year-old female who was admitted to our hospital with sudden onset of bilateral lower limb paraparesis and loss of sensation. The serum level of vitamin B was mildly decreased with high methylmalonic acid and homocysteine levels. Read More

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September 2018
3 Reads

Rare anemias from the group of congenital bone marrow failure syndromes.

Vnitr Lek 2018 ;64(5):488-500

This review summarizes the pathophysiology, genetic background and clinical symptoms of anemias belonging to the group of inherited bone marrow failure syndromes with unilineage failure of erythropoiesis. It sums up the current knowledge of three diseases: Diamond-Blackfan anemia, congenital dyserythropoietic anemia and Fanconi anemia whose pathophysiology was elucidated in detail during the last decade, owing to the rapid development of new molecular-genetic techniques, especially next-generation sequencing. Fanconi anemia is included in this overview because of macrocytosis and/or anemia detected in the majority of the patients before they develop bone marrow failure. Read More

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January 2018
1 Read

Differential diagnosis of anemia.

Vnitr Lek 2018 ;64(5):468-475

Anemia, defined as hemoglobin level under lower normal limit, is a symptom of different pathologic conditions and the accurate differential diagnosis is necessary to determine the cause of anemia. The article uses the morphological classification of anemia to distinguish macrocytic, normocytic and microcytic types of anemias and divides anemias with increased amount of peripheral blood reticulocytes as a special group. It describes commonly known clinical units as iron deficiency anemia or anemia of chronic disease, as so as rare clinical units, which are always need to think about in a differential diagnosis of an anemic patient. Read More

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January 2018
3 Reads

Significantly higher frequencies of anemia, hematinic deficiencies, hyperhomocysteinemia, and serum gastric parietal cell antibody positivity in atrophic glossitis patients.

J Formos Med Assoc 2018 Dec 4;117(12):1065-1071. Epub 2018 Aug 4.

Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan; Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan. Electronic address:

Background/purpose: Atrophic glossitis (AG) patients are prone to have anemia, hematinic deficiencies, hyperhomocysteinemia, and serum gastric parietal cell antibody (GPCA) positivity. This study evaluated whether 1064 AG patients had significantly higher frequencies of anemia, hematinic deficiencies, hyperhomocysteinemia, and serum GPCA positivity than 532 healthy control subjects.

Methods: The complete blood count, serum iron, vitamin B12, folic acid, homocysteine, and serum GPCA levels in 1064 AG patients and 532 age- and sex-matched healthy control subjects were measured and compared. Read More

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December 2018
1 Read

Abnormal folate metabolism causes age-, sex- and parent-of-origin-specific haematological defects in mice.

J Physiol 2018 Sep 15;596(18):4341-4360. Epub 2018 Aug 15.

Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK.

Key Points: Folate (folic acid) deficiency and mutations in folate-related genes in humans result in megaloblastic anaemia. Folate metabolism, which requires the enzyme methionine synthase reductase (MTRR), is necessary for DNA synthesis and the transmission of one-carbon methyl groups for cellular methylation. In this study, we show that the hypomorphic Mtrr mutation in mice results in late-onset and sex-specific blood defects, including macrocytic anaemia, extramedullary haematopoiesis and lymphopenia. Read More

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September 2018
6 Reads

Persistent reticulocytosis in a case of poodle macrocytosis.

Vet Clin Pathol 2018 Sep 27;47(3):400-406. Epub 2018 Jun 27.

Brisbane Veterinary Specialist Centre, Brisbane, Qld, Australia.

A healthy 14-year-old, male neutered, Miniature Poodle was found to have a persistent erythrocyte macrocytosis and reticulocytosis with a normal and stable HCT. The hematologic features of macrocytosis, increased Howell-Jolly bodies, and metarubricytosis, in the absence of anemia or other cytopenias, combined with the cytologic evidence of bone marrow erythroid dysplasia, including megaloblastosis, binuclearity, increased mitotic activity, and nuclear fragmentation, are consistent with previous reports of congenital dyserythropoiesis termed poodle macrocytosis. We speculate that the additional presence of persistent reticulocytosis in the absence of an identifiable stimulus for accelerated erythropoiesis may represent a phenotypic variation of this inherited condition, and the morphologic abnormalities of the dyserythropoiesis are described. Read More

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September 2018
2 Reads

Macrocytic anemia in Lesch-Nyhan disease and its variants.

Genet Med 2018 Jun 6. Epub 2018 Jun 6.

Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA.

Purpose: Lesch-Nyhan disease is an inherited metabolic disorder characterized by overproduction of uric acid and neurobehavioral abnormalities. The purpose of this study was  to describe macrocytic erythrocytes as another common aspect of the phenotype.

Methods: The results of 257 complete blood counts from 65 patients over a 23-year period were collected from 2 reference centers where many patients are seen regularly. Read More

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June 2018
2 Reads

Moleculary Confirmed, Cytogenetic Remission in a Case with Myelodysplastic Syndrome Treated with Azacitidne.

Pril (Makedon Akad Nauk Umet Odd Med Nauki) 2017 Dec;38(3):157-162

Center of Biomolecular Pharmaceutical Analyses, UKIM - Faculty of Pharmacy, Skopje, Republic of Macedonia.

Myelodysplastic syndrome (MDS) is a diverse group of clonal hematologic neoplasms. The only curative treatment for MDS is allogeneic stem cell transplantation (SCT). Epigenetic changes play an important role in the pathogenesis of MDS and treatment with DNA methyl transferase inhibitors, Azacitidine, significantly prolong the survival of high-risk MDS patients. Read More

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December 2017
7 Reads

Triplications of human chromosome 21 orthologous regions in mice result in expansion of megakaryocyte-erythroid progenitors and reduction of granulocyte-macrophage progenitors.

Oncotarget 2018 Jan 19;9(4):4773-4786. Epub 2017 Dec 19.

The Children's Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program and Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA.

Individuals with Down syndrome (DS) frequently have hematopoietic abnormalities, including transient myeloproliferative disorder and acute megakaryoblastic leukemia which are often accompanied by acquired GATA1 mutations that produce a truncated protein, GATA1s. The mouse has been used for modeling DS based on the syntenic conservation between human chromosome 21 (Hsa21) and three regions in the mouse genome located on mouse chromosome 10 (Mmu10), Mmu16 and Mmu17. To assess the impact of the dosage increase of Hsa21 gene orthologs on the hematopoietic system, we characterized the related phenotype in the model which carries duplications spanning the entire Hsa21 orthologous regions on Mmu10, Mmu16 and Mmu17, and the /+;/+;; model which carries a mutation we engineered. Read More

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January 2018
6 Reads

Unrecognized Prevalence of Macrocytosis among the Patients with First Episode of Psychosis and Depression.

Indian J Psychol Med 2018 Jan-Feb;40(1):68-73

Department of Pathology, Mahatma Gandhi Institute of Medical Sciences, Wardha, Maharashtra, India.

Background: Mood disorders and psychosis has been reported among the patients with macrocytosis; however, its prevalence among the first episode of psychosis and depression is unknown. The purpose of the study was to establish the prevalence of macrocytosis among the patients with the first episode of depression and psychosis.

Materials And Methods: In this cross-sectional study, three groups comprising patients with first episode of depression ( = 100), patients with the first episode of psychosis ( = 100), and healthy controls ( = 100) were included. Read More

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February 2018
2 Reads

Maternal anaemia and folate intake in early pregnancy.

J Public Health (Oxf) 2018 Sep;40(3):e296-e302

University College Dublin (UCD) Centre for Human Reproduction, Coombe Women and Infants University Hospital, Dublin, Ireland.

Background: The World Health Organization recommends that women take 400 µg of folate supplementation daily throughout pregnancy. We examined the relationship between total folate intake from the diet and supplements at the first prenatal visit and haematological indices at this visit and subsequently.

Methods: Women were recruited at their convenience and in addition to clinical and sociodemographic details, detailed questionnaires on dietary intakes and supplementation consumption were completed under supervision. Read More

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September 2018

Heterozygous variants in bone marrow failure and myeloid neoplasms.

Blood Adv 2018 01 4;2(1):36-48. Epub 2018 Jan 4.

Department of Haematological Medicine, King's College Hospital, London, United Kingdom.

Biallelic germline mutations in (regulator of telomere elongation helicase 1) result in pathologic telomere erosion and cause dyskeratosis congenita. However, the role of mutations in other bone marrow failure (BMF) syndromes and myeloid neoplasms, and the contribution of monoallelic mutations to disease development are not well defined. We screened 516 patients for germline mutations in telomere-associated genes by next-generation sequencing in 2 independent cohorts; one constituting unselected patients with idiopathic BMF, unexplained cytopenia, or myeloid neoplasms (n = 457) and a second cohort comprising selected patients on the basis of the suspicion of constitutional/familial BMF (n = 59). Read More

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January 2018
28 Reads

Red blood cell metabolism in Down syndrome: hints on metabolic derangements in aging.

Blood Adv 2017 Dec 21;1(27):2776-2780. Epub 2017 Dec 21.

Department of Biochemistry and Molecular Genetics.

Red blood cells (RBCs) are the most abundant cell in the human body. During their ∼120-day life span in the circulatory system, RBCs release oxygen to all human tissues while being exposed to tissue metabolic activity. Owing to the relative simplicity of their intrinsic metabolism and the abundance of metabolite transporters in RBC membranes, the metabolism of mature erythrocytes indirectly mirrors systemic metabolic homeostasis and its alterations as a function of physiological factors, such as aging. Read More

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December 2017
5 Reads

Hematinic deficiencies and anemia statuses in anti-gastric parietal cell antibody-positive or all autoantibodies-negative erosive oral lichen planus patients.

J Formos Med Assoc 2018 Mar 30;117(3):227-234. Epub 2017 Dec 30.

Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan; Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan. Electronic address:

Background/purpose: Approximately 27% of erosive oral lichen planus (EOLP) patients have serum anti-gastric parietal cell antibody (GPCA) positivity. This study assessed whether serum GPCA or EOLP itself was a significant factor that caused hematinic deficiencies and anemia statuses in GPCA-positive or autoantibodies-negative EOLP patients (GPCA/EOLP and Abs/EOLP patients).

Methods: The mean corpuscular volume (MCV) and mean blood hemoglobin (Hb), iron, vitamin B12, and folic acid levels were measured and compared between any two of three groups of 41 GPCA/EOLP patients, 198 Abs/EOLP patients, and 184 healthy control subjects. Read More

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March 2018
17 Reads

Diagnosis and treatment of macrocytic anemias in adults.

J Gen Fam Med 2017 10 13;18(5):200-204. Epub 2017 Apr 13.

Department of General Internal Medicine and Clinical Laboratory Medicine Akita University Graduate School of Medicine Akita Japan.

Anemia is one of the most common health problems in the primary care setting. Macrocytosis in adults is defined as a red blood cell (RBC) mean corpuscular volume (MCV) >100 femtoliter (fL). Macrocytic anemias are generally classified into megaloblastic or nonmegaloblastic anemia. Read More

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October 2017
7 Reads

A comparison of mean corpuscular volume (MCV) between thalassemia-carrier and non-thalassemia-carrier pregnant women receiving highly active antiretroviral therapy (HAART).

Taiwan J Obstet Gynecol 2017 Dec;56(6):736-739

Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand. Electronic address:

Objective: HIV-infected treatment with antiretroviral drugs is one of the common causes of macrocytosis. In patients receiving highly active antiretroviral therapy (HAART), the mean corpuscular volume (MCV) can be shifted from microcytic to normocytic or macrocytic after treatment and significantly affected the thalassemia screening. This study aimed to compare MCV between thalassemia-carrier and non-thalassemia-carrier antiretroviral drug-naïve, HIV-infected, pregnant women receiving HAART. Read More

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December 2017
4 Reads

Profile of red blood cell morphologies and causes of anaemia among pregnant women at first clinic visit in the mount Cameroon area: a prospective cross sectional study.

BMC Res Notes 2017 Nov 29;10(1):645. Epub 2017 Nov 29.

Department of Biochemistry and Molecular Biology, University of Buea, 63, Buea, Cameroon.

Objective: Anaemia is a serious problem in pregnancy in malaria-endemic countries. This study investigated red cell morphologies and possible causes of anaemia among pregnant women at first clinic visit. Venous blood samples from consented women were used to determine haemoglobin (Hb) levels, mean corpuscular volume (MCV) and mean corpuscular haemoglobin (MCH) using an automated haematology analyzer. Read More

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November 2017
11 Reads

Clinical haematology and biochemistry profiles of cattle naturally infected with Theileria orientalis Ikeda type in New Zealand.

N Z Vet J 2018 Jan 8;66(1):21-29. Epub 2017 Nov 8.

a Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Private Bag 11222, Palmerston North 4442 , New Zealand.

Aims: To present the haematology and biochemistry profiles for cattle in New Zealand naturally infected with Theileria orientalis Ikeda type and investigate if the results differed between adult dairy cattle and calves aged <6 months.

Methods: Haematology and biochemistry results were obtained from blood samples from cattle which tested positive for T. orientalis Ikeda type by PCR, that were submitted to veterinary laboratories in New Zealand between October 2012 and November 2014. Read More

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January 2018
2 Reads

Folate deficiency in patients seeking treatment of alcohol use disorder.

Drug Alcohol Depend 2017 11 27;180:417-422. Epub 2017 Sep 27.

Department of Internal Medicine, Hospital Universitari Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain. Electronic address:

Introduction: Nutritional deficiency is frequent in patients with an alcohol use disorder (AUD). We aimed to analyze serum and erythrocyte folate deficiency in a case series of patients that initiated treatment of AUD.

Patients And Methods: A cross-sectional study in patients admitted for detoxification between 2007 and 2015 was performed. Read More

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November 2017
8 Reads

Challenging clinical presentations of pernicious anemia.

Discov Med 2017 09;24(131):107-115

Section of Benign Hematology, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA.

Pernicious anemia (PA) is an autoimmune disease of multifactorial etiologies characterized by autoimmune chronic atrophic gastritis, cobalamin deficiency (CD) due to defective absorption of dietary cobalamin from the terminal ileum, and by the presence of intrinsic factor and parietal cell antibodies. PA is a very common cause of CD-related anemia worldwide. Despite advances in the understanding molecular biology and pathophysiology of PA, the diagnosis of PA remains challenging in many circumstances for many clinicians because of its diverse clinical manifestations and the limitations of currently available diagnostic tools. Read More

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September 2017
22 Reads
3.500 Impact Factor

Hypersegmented neutrophils and oval macrocytes in the setting of B deficiency and pancytopaenia.

BMJ Case Rep 2017 Aug 17;2017. Epub 2017 Aug 17.

Older Persons Specialist Health Services, Mercy University Hospital, Cork, Ireland.

Vitamin B deficiency is a recognised pathology in several populations, with a particular prevalence in an older adult population. We present two cases whereby vitamin B deficiency is the causative factor in marked pancytopaenia. Oval macrocytosis and hypersegmented neutrophils were noted on both peripheral blood samples, which are a characteristic finding in macrocytic anaemia due to B deficiency. Read More

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August 2017
24 Reads

Prevalence of preoperative anemia, abnormal mean corpuscular volume and red cell distribution width among surgical patients in Singapore, and their influence on one year mortality.

PLoS One 2017 4;12(8):e0182543. Epub 2017 Aug 4.

Department of Anaesthesiology, Singapore General Hospital, Singapore, Singapore.

Introduction: Preoperative anemia and high red cell distribution width (RDW) are associated with higher perioperative mortality. Conditions with high RDW levels can be categorized by mean corpuscular volume (MCV). The relationship between RDW, anemia and MCV may explain causality between high RDW levels and outcomes. Read More

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October 2017
12 Reads

FIRST RECORD OF HEMATOLOGIC VALUES IN FREE-LIVING AND CAPTIVE MANED SLOTHS (BRADYPUS TORQUATUS; XENARTHA, BRADYPODIDAE).

J Zoo Wildl Med 2017 Jun;48(2):312-318

Bradypus torquatus is a rare and endemic sloth species from the Atlantic Forest, Brazil. Due to a lack of medical information including hematologic reference parameters for the species, hematologic baseline values were determined using samples from 14 clinically healthy B. torquatus , under captive (n = 7) and free-living (n = 7) conditions in Bahia State, Brazil. Read More

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June 2017
34 Reads

Is macrocytosis a potential biomarker of the efficacy of dose-dense paclitaxel-carboplatin combination therapy in patients with epithelial ovarian cancer?

Anticancer Drugs 2017 09;28(8):922-927

aDepartment of Oncology, University Hospital Split bDepartment of Medical Biology, School of Medicine, University of Split, Split, Croatia.

The aims of this study were to investigate a clinical observation that patients with epithelial ovarian cancer treated with first-line platinum-paclitaxel chemotherapy combination (TP) develop macrocytosis and to explore the possible predictive role of macrocytosis in response rate, progression-free survival (PFS), and overall survival. A retrospective analysis of laboratory and clinical data on 184 consecutive ovarian cancer patients treated with first-line TP chemotherapy in a single oncology center from 2004 to 2015 was carried out. Macrocytosis was defined as an increase in mean corpuscular volume of peripheral red blood cells above 97. Read More

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September 2017
19 Reads

A Black Cohosh Extract Causes Hematologic and Biochemical Changes Consistent with a Functional Cobalamin Deficiency in Female B6C3F1/N Mice.

Toxicol Pathol 2017 07 15;45(5):614-623. Epub 2017 Jun 15.

1 Division of the National Toxicology Program, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, North Carolina, USA.

Black cohosh rhizome, available as a dietary supplement, is most commonly marketed as a remedy for dysmenorrhea and menopausal symptoms. A previous subchronic toxicity study of black cohosh dried ethanolic extract (BCE) in female mice revealed a dose-dependent ineffective erythropoiesis with a macrocytosis consistent with the condition known as megaloblastic anemia. The purpose of this study was to investigate potential mechanisms by which BCE induces these particular hematological changes. Read More

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July 2017
9 Reads

Macrocytosis secondary to hydroxyurea therapy.

Vet Clin Pathol 2017 Sep 5;46(3):451-456. Epub 2017 Jun 5.

Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA.

A 10-year-old, male neutered Shetland Sheepdog was presented to the University of Florida for evaluation of a well-granulated mast cell tumor. Hydroxyurea therapy was instituted and serial CBCs showed persistent mild anemia and macrocytosis without a corresponding increase in polychromasia. The dog's MCV increased progressively, reaching its highest value of 100. Read More

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September 2017
17 Reads

Altered Erythropoiesis in Mouse Models of Type 3 Hemochromatosis.

Biomed Res Int 2017 2;2017:2408941. Epub 2017 May 2.

Department of Clinical and Biological Sciences, AOU San Luigi Gonzaga, University of Torino, Orbassano, Torino, Italy.

Type 3 haemochromatosis (HFE3) is a rare genetic iron overload disease which ultimately lead to compromised organs functioning. HFE3 is caused by mutations in transferrin receptor 2 (TFR2) gene that codes for two main isoforms (Tfr2 and Tfr2). Tfr2 is one of the hepatic regulators of iron inhibitor hepcidin. Read More

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February 2018
4 Reads

Hb Bakersfield (HBA1: c.151_152insGGAGCC): The Insertion of Arg-His Between Codons 49 and 50 of the α1-Globin Chain Leads to Increased Oxygen Affinity.

Hemoglobin 2017 Jan;41(1):1-5

a Institute of Laboratory Medicine , Canton Hospital Aarau , Aarau , Switzerland.

We describe an insertion variant on the α1-globin gene (HBA1) identified in a 49-year-old woman of Jurassian ancestry presenting with macrocytosis and erythrocytosis. The variant resulted in a peak of 15.5% of the total hemoglobin (Hb) on high performance liquid chromatography (HPLC). Read More

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January 2017
14 Reads

Hypocobalaminaemia as a cause of bone marrow failure and pancytopenia in a cat.

Aust Vet J 2017 May;95(5):156-160

Internal Medicine Department, The Animal Medical Center, New York, USA.

Case Report: A male Domestic Short-hair cat was presented for chronic weight loss, lethargy and hyporexia. Complete haematological examination revealed non-regenerative anaemia, neutropenia and thrombocytopenia, as well as Howell-Jolly bodies, anisocytosis, polychromasia and macrocytosis on blood smear evaluation. Histopathological evaluation of bone marrow biopsy disclosed hypocellularity consistent with bone marrow failure. Read More

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May 2017
9 Reads

[Macrocytosis of red blood cells and early arthritis positive for rheumatoid factor such as initial manifestations of a neuroendocrine gastrin-secreting gastric tumor.]

Recenti Prog Med 2017 Mar;108(3):149-151

Ambulatorio di Gastroenterologia, Distretto Sanitario 34, ASL NA 3 Sud.

Neuroendocrine tumors (NETs) represent uncommon tumors arising from the excessive proliferation of enterochromaffin-like (ECL) cells (so-called Kulchitsky cell). Gastric NETs (GNET) represent less than 2% of all NETs and less than 1% of all stomach neoplasms. In particular, gastric NETs type 1 (associated to chronic atrophic gastritis and hypergastrinaemia) is the more frequent one, accounting for 70-80% of all GNET. Read More

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March 2017
3 Reads

Persistence of Macrocytosis after Discontinuation of Zidovudine in HIV-Infected Patients.

J Int Assoc Provid AIDS Care 2017 Sep/Oct;16(5):512-515. Epub 2017 Apr 10.

2 Division of Infectious Diseases, Department of Internal Medicine, University of Kentucky, Lexington, KY, USA.

The duration of macrocytosis after stopping zidovudine (ZDV) is unknown. Among 104 HIV-infected patients treated with ZDV for more than 1 year, 84 patients had macrocytosis at ZDV discontinuation. The median mean corpuscular volume (MCV) was 114. Read More

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June 2018
6 Reads

A Mouse Model for Human Unstable Hemoglobin Santa Ana.

Comp Med 2016 12;66(6):437-444

Department of Immunology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil.

In the present study, we described the phenotype, histologic morphology, and molecular etiology of a mouse model of unstable hemoglobin Santa Ana. Hematologic evaluation of anemic mice (Anem/+) discovered after N-ethyl-N-nitrosourea mutagenesis revealed moderate anemia with intense reticulocytosis and polychromasia, followed by anisocytosis, macrocytosis, hypochromia, and intraerythrocytic inclusion and Heinz bodies. The mice also demonstrated hemoglobinuria, bilirubinemia, and erythrocytic populations with differing resistance to osmotic lysis. Read More

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December 2016
14 Reads

[Evaluation of hemogram in patients with homozygous sickle cell disease: about 87 cases].

Pan Afr Med J 2016 20;25:240. Epub 2016 Dec 20.

Équipe de Recherche en Hématologie, Laboratoire d'Hématologie, Faculté de Médecine et de Pharmacie, Université Mohammed V, Rabat, Maroc; Laboratoire Central d'Hématologie, Centre Hospitalier Ibn Sina, Rabat, Maroc.

Homozygous sickle cell disease is one of the most frequent haemoglobinopathies in Morocco. Sickle cell disease is characterized by a large clinical and biological expression variability which depends on modulating genetic and environmental factors. Clinical manifestation includes regenerative anemia whose severity may vary among individuals. Read More

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March 2017
5 Reads

Sweet's syndrome associated with clonal hematopoiesis of indeterminate potential responsive to 5-azacitidine.

Ther Adv Hematol 2017 Feb 29;8(2):91-95. Epub 2016 Nov 29.

Department of Hematology/Oncology, The West Clinic, The University of Tennessee Health Science Center, Memphis, TN, USA.

Sweet's syndrome (SS) is a rare condition characterized by the abrupt appearance of painful skin lesions due to neutrophilic dermal infiltration. Hematologic neoplasms, particularly acute myeloid leukemia (AML) and myelodysplastic syndromes (MDSs), have been commonly reported in association with SS. Clonal hematopoiesis of indeterminate potential (CHIP) is an emerging entity that is a precursor state to myeloid neoplasms. Read More

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February 2017
31 Reads

Screening by Total Colonoscopy Following Fecal Immunochemical Tests and Determinants of Colorectal Neoplasia in Japanese Men With Alcohol Dependence.

Alcohol Alcohol 2017 03;52(2):131-137

National Hospital Organization Kurihama Medical and Addiction Center, 5-3-1 Nobi, Yokosuka, Kanagawa 239-0841, Japan.

Aims: Alcohol consumption increases the risk of colorectal adenoma and cancer. The fecal immunochemical test (FIT) is a widely used screening method for detecting colorectal neoplasia. We evaluated the results of screening and risk factors for colorectal neoplasia in individuals with alcohol dependence. Read More

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March 2017
7 Reads

Descriptive study of the complete blood count in newborn infants with Down syndrome.

Am J Med Genet A 2017 Apr 7;173(4):897-904. Epub 2017 Feb 7.

Department of Molecular Biology and Genomics, Dr. Enrique Corona-Rivera Institute of Human Genetics, University of Guadalajara, Health Sciences University Center, Guadalajara, Jalisco, México.

The usefulness of the complete blood count (CBC) during the first week of life in infants with Down syndrome (DS) has been recognized; however, studies are limited and have evaluated only some of the parameters of the CBC. Here, we report a prospective study of 135 infants with cytogenetically confirmed DS and a reference group of 226 infants without birth defects all born during the period 2009-2015 at the Dr. Juan I. Read More

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April 2017
10 Reads

Biermer anemia: Hematologic characteristics of 66 patients in a Clinical Hematology Unit at Senegal.

Med Sante Trop 2016 Nov;26(4):402-407

Hôpital Aristide Le Dantec, Dakar, Sénégal.

Hematological manifestations can lead to diagnosis of pernicious anemia, also known as Biermer disease and Biermer anemia. This disease has been little studied among black Africans. Our aim is to describe its diagnostic and therapeutic aspects and outcome in our practice. Read More

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November 2016
14 Reads

Fanconi Anemia: A Rarely Considered Cause of Macrocytosis During Childhood.

Authors:
Deniz Aslan

J Pediatr Hematol Oncol 2017 Oct;39(7):570-572

Section of Hematology, Department of Pediatrics, Faculty of Medicine, Gazi University, Ankara, Turkey.

We describe a Turkish boy newly diagnosed with Fanconi anemia with mutation in the FANCA gene. The patient, with normal clinical phenotype and negative chromosomal breakage test result, presented with macrocytosis. No clinical or laboratory changes were observed in a follow-up period of 4 years. Read More

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October 2017
2 Reads

Hepatitis B Leading to Megaloblastic Anemia and Catastrophic Peripheral Thrombocytopenia.

J Coll Physicians Surg Pak 2016 Dec;26(12):992-994

Department of Haematology, Combined Military Hospital, Kharian.

Hepatitis B virus (HBV) typically causes chronic hepatitis, cirrhosis, and hepatocellular carcinoma. It is associated with a variety of extrahepatic complications. We herein, present a rare extrahepatic complication of HBV infection. Read More

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December 2016
10 Reads