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Related Concept Videos

Erythropoiesis01:14

Erythropoiesis

5.7K
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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Erythropoiesis01:14

Erythropoiesis

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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.
Thrombopoietin (TPO), mainly released by the liver,...
3.9K
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...
8.4K
Overview of Hematopoiesis01:20

Overview of Hematopoiesis

9.9K
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
Initially, HSCs are formed in the embryonic yolk sac, a critical site for early blood cell production. These stem cells subsequently migrate to other...
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Hormonal Regulation of Blood Pressure01:17

Hormonal Regulation of Blood Pressure

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Endocrinal or hormonal intervention in the cardiovascular system is predominantly exerted by the catecholamines - epinephrine and norepinephrine, as well as a slew of hormones that interact with renal function to modulate blood volume.
Epinephrine and Norepinephrine
The adrenal medulla releases epinephrine and norepinephrine, catecholamines that enhance and extend the sympathetic or "fight or flight" physiological response. These hormones escalate heart rate and the force of contraction...
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Related Experiment Video

Updated: May 5, 2026

Author Spotlight: Advancing Erythropoiesis Research - A Simplified Pipeline for Assessing Hematopoietic Stem Cell Function in Myelodysplastic Syndromes
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Erythropoietic agents from natural sources.

Sung-Jo Kim, Young-Won Chin, Tae-Hwe Heo

    Alternative Therapies in Health and Medicine
    |November 21, 2013
    PubMed
    Summary

    Anemia treatment using recombinant human erythropoietin (EPO) is common but costly and invasive. Natural products offer a promising, economical, and safe alternative for stimulating red blood cell production.

    Area of Science:

    • Hematology
    • Pharmacology
    • Natural Products Research

    Background:

    • Anemia is prevalent in chronic kidney disease (CKD), gynecologic diseases, and cancer therapy patients.
    • Recombinant human erythropoietin (EPO) has been a primary treatment since 1988 but has drawbacks like high cost and immunogenicity.
    • There is a need for alternative, orally administrable, and nonimmunogenic hematopoietic agents.

    Purpose of the Study:

    • To review erythropoietin (EPO) therapy for anemia.
    • To explore traditional medicines and natural products as potential hematopoietic agents.
    • To discuss the mechanisms of action for erythropoiesis stimulation by natural products.

    Main Methods:

    • Literature review of EPO therapy and traditional anemia treatments.

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  • Analysis of natural products and herbal medicines for hematopoietic properties.
  • Examination of the scientific literature on erythropoiesis mechanisms.

    • Main Results:

    • EPO therapy is effective but associated with significant costs and potential immunogenicity.
    • Natural products, particularly herbal medicines, have a long history of use for anemia.
    • Recent research is identifying active constituents in natural products with hematopoietic potential.

    Conclusions:

    • Natural products represent a valuable source for developing novel, cost-effective, and safer anemia therapies.
    • Oral administration and nonimmunogenic properties make natural product-derived agents attractive alternatives to EPO.
    • Further research into traditional medicines can lead to new drug discovery for anemia treatment.