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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...

Hemoglobin

Hemoglobin

Hemoglobin is a globular protein made up of four subunits. Two of these subunits are alpha chains, and the other two are beta chains. Each subunit contains a molecule of heme, which has an iron atom and can bind to oxygen. When an oxygen molecule binds to one heme group, it changes the shape of hemoglobin, making it easier for the other heme groups to bind oxygen as well.
When all four heme groups are bound to oxygen, the resulting molecule is called oxyhemoglobin. As a result, arterial blood...

Blood Transfusion

Blood Transfusion

Blood transfusion is a critical medical procedure that saves lives and treats various medical conditions. It involves transferring blood from a donor to a recipient. This process requires a thorough understanding of the ABO blood group system and its associated antigens and antibodies.
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...

Rh Blood Group

Rh Blood Group

The Rhesus (Rh) antigen is crucial in determining blood groups and ensuring compatibility during blood transfusions.

Blood Typing

Blood Typing

Understanding an individual's blood group is a critical component of transfusion medicine. It ensures compatibility in blood transfusions, organ transplants, and even during pregnancy. Determining these blood groups involves the ABO and Rh blood typing systems, utilizing specific antigens and corresponding anti-sera to identify an individual's blood type.
Antigens are protein molecules that reside on the surface of red blood cells (RBCs). The ABO and Rh blood typing systems target antigens A,...

Oxygen Transport in the Blood

Oxygen Transport in the Blood

Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...

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Updated: May 29, 2026

A Rapid and Chemical-free Hemoglobin Assay with Photothermal Angular Light Scattering

A Rapid and Chemical-free Hemoglobin Assay with Photothermal Angular Light Scattering

Published on: December 7, 2016

[Hemoglobinopathy. Laboratory diagnosis].

M Oliver¹, A Wolf, C Roche

¹Laboratoire de Biochimie Hôpital d'Instruction des Armées Alphonse Laveran, Marseille. manuelaoliver@bbox.fr

Medecine Tropicale : Revue Du Corps De Sante Colonial

|August 30, 2011

Summary

This summary is machine-generated.

Hemoglobinopathies, common genetic disorders prevalent in malaria-endemic regions, necessitate rapid diagnosis. This guide details primary diagnostic methods for non-specialized labs, highlighting interpretation challenges.

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Staphylococcus aureus Growth using Human Hemoglobin as an Iron Source

Staphylococcus aureus Growth using Human Hemoglobin as an Iron Source

Published on: February 7, 2013

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Last Updated: May 29, 2026

A Rapid and Chemical-free Hemoglobin Assay with Photothermal Angular Light Scattering

A Rapid and Chemical-free Hemoglobin Assay with Photothermal Angular Light Scattering

Published on: December 7, 2016

Staphylococcus aureus Growth using Human Hemoglobin as an Iron Source

Staphylococcus aureus Growth using Human Hemoglobin as an Iron Source

Published on: February 7, 2013

Area of Science:

Genetics
Hematology

Context:

Hemoglobinopathies represent the most prevalent global genetic disorders.
High incidence observed in regions with endemic malaria.
Sickle cell disease and thalassemia demand urgent diagnostic evaluation.

Purpose:

To outline essential first-line diagnostic techniques for hemoglobinopathies.
Focus on methods suitable for non-specialized laboratory settings.
Emphasize common pitfalls in result interpretation.

Summary:

Describes primary diagnostic approaches for hemoglobinopathies.
Addresses challenges in interpreting results in resource-limited settings.
Aims to improve diagnostic accuracy for sickle cell disease and thalassemia.

Impact:

Enhances diagnostic capabilities for hemoglobinopathies in non-specialized laboratories.
Aids healthcare providers in timely and accurate diagnosis.
Contributes to better patient management for genetic blood disorders.