Circadian and seasonal variations of hematopoiesis in cord blood

Bone Marrow Transplant. 1998 Jul:22 Suppl 1:S12.

Abstract

Cord blood hematopoietic progenitors undergo circadian and seasonal variations. The lowest values are obtained between 4:00 and 12:00, as well as between May and August. This represents the first observation of such rhythms before birth.

MeSH terms

  • Blood Banks
  • Circadian Rhythm*
  • Colony-Forming Units Assay
  • Fetal Blood*
  • Hematopoiesis*
  • Hematopoietic Stem Cells / physiology
  • Humans
  • Seasons*