Related Experiment Video

Updated: Nov 17, 2025

Transduction-Transplantation Mouse Model of Myeloproliferative Neoplasm
08:12

Transduction-Transplantation Mouse Model of Myeloproliferative Neoplasm

Published on: December 22, 2016

12.2K

Transient abnormal myelopoiesis in pediatrics with trisomy 21

Nadereh Taee1, Mojgan Faraji-Goodarzi1, Mohammad Safdari2

  • 1Department of Pediatrics Faculty of Medicine Lorestan University of Medical Sciences Khorramabad Iran.

Clinical Case Reports
|February 18, 2021
PubMed

Insights

Transient abnormal myelopoiesis (TAM) is frequent in Down syndrome. Close monitoring for issues like GI bleeding is key, but long-term follow-up often leads to healthy outcomes without aggressive treatments.

Area of Science:

  • Hematology
  • Genetics
  • Pediatrics

Background:

  • Transient abnormal myelopoiesis (TAM) is a hematologic malignancy unique to newborns with Down syndrome (DS).
  • While often self-resolving, TAM can present with significant complications.

Observation:

  • This condition occurs in a notable percentage of infants diagnosed with Down syndrome.
  • Gastrointestinal bleeding is a critical comorbidity requiring vigilant observation.

Findings:

  • In most cases, TAM does not necessitate immediate therapeutic interventions.
  • Long-term follow-up data indicate a positive prognosis for affected individuals.

Implications:

  • Early identification and monitoring can prevent severe complications.
  • A strategy of watchful waiting and targeted comorbidity management can lead to remission and a healthy future, minimizing the need for treatments like chemotherapy.

Keywords:
Down syndrometransient leukemia

More Related Videos

Use of Hematopoietic Stem Cell Transplantation to Assess the Origin of Myelodysplastic Syndrome06:39

Use of Hematopoietic Stem Cell Transplantation to Assess the Origin of Myelodysplastic Syndrome

Published on: October 3, 2018

10.0K
Bone Marrow Transplantation Procedures in Mice to Study Clonal Hematopoiesis08:00

Bone Marrow Transplantation Procedures in Mice to Study Clonal Hematopoiesis

Published on: May 26, 2021

13.4K

Related Concept Videos

Bone Marrow Sampling and Transplants01:22

Bone Marrow Sampling and Transplants

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.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
636
Meiosis I01:49

Meiosis I

Meiosis is a carefully orchestrated set of cell divisions, the goal of which—in humans—is to produce haploid sperm or eggs, each containing half the number of chromosomes present in somatic cells elsewhere in the body. Meiosis I is the first such division, and involves several key steps, among them: condensation of replicated chromosomes in diploid cells; the pairing of homologous chromosomes and their exchange of information; and finally, the separation of homologous chromosomes by...
200.3K
Differentiation of Common Myeloid Progenitor Cells01:15

Differentiation of Common Myeloid Progenitor Cells

Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
3.6K
Overview of Hematopoiesis01:20

Overview of Hematopoiesis

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...
6.5K
Multipotency of Hematopoietic Stem Cells01:19

Multipotency of Hematopoietic Stem Cells

The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
3.6K
Hematopoiesis01:21

Hematopoiesis

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...
7.7K