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Related Concept Videos

Erythropoiesis01:14

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,...
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Factors Affecting Erythropoiesis01:24

Factors Affecting Erythropoiesis

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The cardiovascular system regulates the number of erythrocytes in the bloodstream to ensure optimal oxygen transport. It also prevents over-proliferation of these cells, which helps to maintain blood viscosity and flow rate.
Several factors influence the erythrocyte production rate, with tissue oxygen level being among the most critical. Intense exercise or high altitudes can cause tissue hypoxia, which triggers the kidneys to release more erythropoietin (EPO) into the bloodstream.
EPO then...
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Overview of Hematopoiesis01:20

Overview of Hematopoiesis

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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).
Developmental Phases of Hematopoiesis
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Regulation of Hematopoietic Stem Cells01:01

Regulation of Hematopoietic Stem Cells

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All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
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Disorders of Erythrocytes01:27

Disorders of Erythrocytes

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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...
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Role of Hematopoietic Growth Factors01:28

Role of Hematopoietic Growth Factors

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Hematopoietic growth factors are molecules that regulate the differentiation rate of hematopoietic stem cells (HSCs). Erythropoietin (EPO), primarily produced by the kidneys, plays a crucial role in erythrocyte production. When oxygen levels in the blood are low, EPO is released into the bloodstream, reaching the bone marrow, where it stimulates HSCs to differentiate and mature into erythrocytes, which are vital for oxygen transport.
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Related Experiment Video

Updated: Aug 13, 2025

Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells
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Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells

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Cellular Zinc Deficiency Impairs Heme Biosynthesis in Developing Erythroid Progenitors.

Juyoung Kim1, Jaekwon Lee2, Moon-Suhn Ryu1,3

  • 1Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN 55108, USA.

Nutrients
|January 21, 2023
PubMed
Summary

Zinc is essential for red blood cell development and heme production. This study reveals zinc

Keywords:
anemiahemoglobiniron deficiencyprotoporphyrinsuccinylacetoneterminal erythroid differentiationzinc

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Last Updated: Aug 13, 2025

Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells
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Author Spotlight: Exploring Cellular Zinc Regulation Through ZnT1 Functionality
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Author Spotlight: Exploring Cellular Zinc Regulation Through ZnT1 Functionality

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Area of Science:

  • Biochemistry
  • Hematology
  • Nutritional Science

Background:

  • Anemia is a global health issue, often linked to nutritional deficiencies.
  • Zinc is vital for biological processes, and its deficiency is associated with anemia.
  • The precise role of zinc in red blood cell development and heme synthesis is not fully understood.

Purpose of the Study:

  • To investigate the essentiality of zinc in erythroid development.
  • To elucidate the molecular mechanisms linking zinc availability to heme biosynthesis.
  • To explore zinc's potential as a therapeutic target for anemia.

Main Methods:

  • Utilized G1E-ER4 mouse cells as an in vitro model for terminal erythroid differentiation.
  • Assessed the impact of restricted zinc import on heme and α-globin production.
  • Confirmed findings in a second erythropoietic cell model, MEL-DS19.
  • Analyzed the ZnPP-to-heme ratio as a marker.

Main Results:

  • Zinc deficiency impaired heme and α-globin production, hindering hemoglobinization.
  • Reduced heme synthesis under zinc restriction was due to decreased porphyrin synthesis, not iron levels.
  • The ZnPP-to-heme ratio response to zinc restriction differed from iron deficiency.

Conclusions:

  • Zinc is an essential nutrient critical for erythroid heme biosynthesis.
  • Adequate zinc levels are necessary for normal red blood cell development.
  • Zinc represents a potential therapeutic target for anemia and related erythrocyte disorders.