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Severe congenital neutropenia (SCN), also often known as Kostmann syndrome or disease, is a group of rare disorders that affect myelopoiesis, causing a congenital form of neutropenia, usually without other physical malformations. SCN manifests in infancy with life-threatening bacterial infections. [2]
Cyclic neutropenia (CyN), like severe congenital neutropenia (SCN), is a rare disorder. It is considered that in the general population, CyN has a frequency of one in one million. [ 1 ] It is the result of autosomal dominant mutation in ELANE gene located on the short arm (p) of chromosome 19 (19p13.3), the gene encoding neutrophil elastase ...
The congenital neutropenia (severe and cyclic type) is autosomal dominant, with mutations in the ELA2 gene (neutrophil elastase) as the most common genetic reason for this condition. [7] Acquired neutropenia (immune-associated neutropenia) is due to anti-neutrophil antibodies that target neutrophil-specific antigens , ultimately altering ...
Neutropenia indicates a deficiency of neutrophils (the most common granulocyte cell) only. [citation needed] To be precise, neutropenia is the term normally used to describe absolute neutrophil counts (ANCs) of less than 500 cells per microlitre, whereas agranulocytosis is reserved for cases with ANCs of less than 100 cells per microlitre.
Neutropenia, a subtype of leukopenia, refers to a decrease in the number of circulating neutrophil granulocytes, the most abundant white blood cells. The terms leukopenia and neutropenia may occasionally be used interchangeably, as the neutrophil count is the most important indicator of infection risk. Agranulocytosis is an acute form of ...
Hematologic: Aplastic anemia, chronic neutropenia, monocytopenia, monocytosis (rarely), thrombocytopenia (which unlike other hematologic findings is most often due to autoimmunity), bone marrow failure, myelodysplastic syndrome, acute myeloid leukemia, chronic myelomonocytic leukemia, case reports of chronic lymphocytic leukemia and large ...
Congenital dyserythropoietic anemia type I (CDA I) is a disorder of blood cell production, particularly of the production of erythroblasts, which are the precursors of the red blood cells (RBCs). [ 1 ]
Hemoglobinopathies (congenital abnormality of the hemoglobin molecule or of the rate of hemoglobin synthesis) Sickle cell disease; Thalassemia; Methemoglobinemia; Anemias (lack of red blood cells or hemoglobin) Iron-deficiency anemia; Megaloblastic anemia. Vitamin B 12 deficiency Pernicious anemia; Folate deficiency; Hemolytic anemias ...