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Disorders of Leukocytes01:27

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Leukocyte disorders can lead to either leukopenia, characterized by an abnormally low leukocyte count, or leukocytosis, marked by a very high leukocyte number.
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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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Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
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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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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...
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An adult in good health typically has between 4,500 and 11,000 leukocytes, or white blood cells, per microliter of blood, which constitutes about 1% of the total blood volume. Unlike red blood cells, white blood cells contain a nucleus and other cellular organelles but do not have hemoglobin. Most white blood cells reside in connective tissues, particularly in lymphatic organs such as the lymph nodes, with only a small fraction present in circulating blood.
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Murine Model of Leukemia Relapse to Induction Chemotherapy for Acute Lymphoblastic Leukemia
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Leukemias in Children.

Rachna Seth1, Amitabh Singh

  • 1Division of Oncology, Department of Pediatrics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India, drrachnaseth@yahoo.co.in.

Indian Journal of Pediatrics
|February 15, 2015
PubMed
Summary
This summary is machine-generated.

Childhood cancers, including leukemia, are significant causes of illness and death in children under 15. Early diagnosis and prompt referral to specialized cancer centers are crucial for effective treatment and managing complications.

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Area of Science:

  • Pediatric Oncology
  • Hematology-Oncology

Background:

  • Childhood cancers represent a major cause of morbidity and mortality in children under 15.
  • Leukemias are the most frequent childhood malignancy, accounting for 30-40% of cases.

Purpose of the Study:

  • To provide an overview of common childhood malignancies.
  • To highlight the significance of leukemia as the most prevalent childhood cancer.
  • To emphasize the importance of timely diagnosis and treatment initiation.

Main Methods:

  • Systematic review of common childhood cancers.
  • Classification and description of leukemia subtypes.
  • Discussion of diagnostic and treatment approaches.

Main Results:

  • Leukemias, particularly acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML), are the most common childhood cancers.
  • Other significant childhood malignancies include brain tumors and lymphomas.
  • Leukemia pathogenesis involves clonal proliferation of abnormal hematopoietic cells, leading to bone marrow failure.

Conclusions:

  • A systematic diagnostic approach is essential for childhood cancers, especially leukemia.
  • Early initiation of treatment and referral to a cancer center are critical for optimal outcomes.
  • Management of complications and supportive care are integral to pediatric cancer treatment.