Effect of vitamin A supplementation on hematopoiesis in children with anemia

Arun Garg1, Pankaj Abrol, Ad Tewari

  • 1Departments of Pediatrics, Pt. BD Sharma Post Graduate Institute of Medical Sciences, 124001 Rohtak, (Haryana).

Insights

Vitamin A supplementation enhances iron

Area of Science:

  • Pediatric Nutrition
  • Hematology
  • Micronutrient Research

Background:

  • Microcytic hypochromic anemia is common in young children.
  • Iron deficiency is a primary cause of anemia.
  • Vitamin A deficiency can coexist with iron deficiency and impact hematopoiesis.

Purpose of the Study:

  • To investigate the effect of vitamin A supplementation on iron-deficiency anemia in children.
  • To compare the efficacy of iron alone versus iron plus vitamin A in treating anemia.

Main Methods:

  • A randomized controlled trial involving 50 children aged 1-4 years with anemia.
  • Group I received iron (ferrous sulfate).
  • Group II received iron plus vitamin A.

Main Results:

  • Hemoglobin levels significantly increased in both groups after 4 weeks.
  • Greater hemoglobin increase observed in the iron plus vitamin A group after 8 and 12 weeks.
  • Significant increases in packed cell volume (PCV) and retinol levels were noted only in the vitamin A supplemented group.

Conclusions:

  • Vitamin A supplementation, in addition to iron, improves the hematological response in anemic children.
  • Vitamin A plays a crucial role in enhancing hematopoiesis beyond iron's effect.
  • Combined supplementation may be more effective for treating childhood anemia.

Related Concept Videos

Role of Hematopoietic Growth Factors01:28

Role of Hematopoietic Growth Factors

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,...
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...
Factors Affecting Erythropoiesis01:24

Factors Affecting Erythropoiesis

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...
Regulation of Hematopoietic Stem Cells01:01

Regulation of Hematopoietic Stem Cells

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...
Disorders of Erythrocytes01:27

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...
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...