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Disorders of Erythrocytes

Disorders of Erythrocytes

Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...

Bone Marrow Sampling and Transplants

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Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
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Erythropoiesis

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Red blood cells (RBCs) transport oxygen to all body tissues. These cells survive only for 120 days and then need to be replenished. Erythropoiesis is the process of RBC production. In healthy individuals, erythropoiesis ensures all tissues are amply supplied with oxygen. In addition, blood loss due to injury leads to a drop in the physiological oxygen level that will cause erythropoiesis. Any defect in erythropoiesis leads to several physiological disorders, including thalassemia, anemia, and...

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The process of blood cell formation is called hematopoiesis. Hematopoiesis starts early during development, on the seventh day of embryogenesis. This phase of hematopoiesis is called the primitive wave, wherein the extraembryonic yolk sac allows the production of erythroid cells and endothelial cells from a common precursor called hemangioblast. The erythroid cells provide oxygen to support the growth of the rapidly dividing embryo. Hemangioblasts later develop into hematopoietic stem cells or...

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Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
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Hematopoiesis, or blood cell production, is a vital biological process that begins early in embryonic development and continues throughout life. This process generates the various types of cells found in blood, including red blood cells, white blood cells, and platelets from hematopoietic stem cells (HSCs).
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Related Experiment Video

Updated: Jun 14, 2026

Ex vivo Mimicry of Normal and Abnormal Human Hematopoiesis

Ex vivo Mimicry of Normal and Abnormal Human Hematopoiesis

Published on: April 10, 2012

[Inherited aplastic anemias].

A C Esteves¹, O Freitas, T Almeida

¹Hospital de Dona Estefânia, Lisboa, Portugal.

Anales De Pediatria (Barcelona, Spain : 2003)

|April 3, 2010

Summary

Inherited aplastic anaemias are rare bone marrow failure disorders often diagnosed in childhood. This study reports 11 cases, including Fanconi

Area of Science:

Hematology
Genetics
Pediatrics

Context:

Inherited aplastic anaemias encompass rare bone marrow failure syndromes.
These conditions present with diverse somatic anomalies and elevated cancer risk.
Diagnosis typically occurs in pediatric patients, often associated with significant mortality.

Purpose:

To report on a series of inherited aplastic anaemia cases diagnosed over 14 years.
To detail the specific diagnoses within this cohort: Fanconi's anaemia and Dyskeratosis congenita.

Summary:

Eleven cases of inherited aplastic anaemias were diagnosed at Dona Estefânia Hospital.
The cohort included 8 cases of Fanconi's anaemia and 3 cases of Dyskeratosis congenita.
These diagnoses represent rare genetic disorders of bone marrow failure.

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A Comprehensive Pipeline to Assess the Efficiency of Human Erythropoiesis In Vitro and Ex Vivo

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A Comprehensive Pipeline to Assess the Efficiency of Human Erythropoiesis In Vitro and Ex Vivo

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Impact:

Highlights the clinical presentation and diagnosis of rare inherited bone marrow failure syndromes.
Contributes to understanding the prevalence and diagnostic patterns of these conditions in a specific pediatric population.
Underscores the importance of early diagnosis for managing inherited aplastic anaemias and associated risks.