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KMID : 1130620170130010084
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Journal of Clinical Neurology
2017 Volume.13 No. 1 p.84 ~ p.90
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Human Umbilical Cord Blood CD34-Positive Cells as Predictors of the Incidence and Short-Term Outcome of Neonatal Hypoxic-Ischemic Encephalopathy: A Pilot Study
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Hassanein Sahar M. A.
Eldin Mohamed Hassan Nasr
Amer Hanaa A.
Abdelhamid Adel E.
Houssinie Moustafa El
Ibrahimf Abir
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Abstract
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Background and Purpose: Neonatal hypoxic-ischemic encephalopathy (HIE) is one of the leading causes of neurological handicap in developing countries. Human umbilical cord blood (hUCB) CD34-positive (CD34+) stem cells exhibit the potential for neural repair. We tested the hypothesis that hUCB CD34+ stem cells and other cell types [leukocytes and nucleated red blood cells (NRBCs)] that are up-regulated during the acute stage of perinatal asphyxia (PA) could play a role in the early prediction of the occurrence, severity, and mortality of HIE.
Methods: This case-control pilot study investigated consecutive neonates exposed to PA. The hUCB CD34+ cell count in mononuclear layers was assayed using a flow cytometer. Twenty full-term neonates with PA and 25 healthy neonates were enrolled in the study.
Results: The absolute CD34+ cell count (p=0.02) and the relative CD34+ cell count (CD34+%) (p<0.001) in hUCB were higher in the HIE patients (n=20) than the healthy controls. The hUCB absolute CD34+ cell count (p=0.04), CD34+% (p<0.01), and Hobel risk scores (p=0.04) were higher in patients with moderate-to-severe HIE (n=9) than in those with mild HIE (n=11). The absolute CD34+ cell count was strongly correlated with CD34+% (p<0.001), Hobel risk score (p=0.04), total leukocyte count (TLC) (p<0.001), and NRBC count (p=0.01). CD34+% was correlated with TLC (p=0.02).
Conclusions: hUCB CD34+ cells can be used to predict the occurrence, severity, and mortality of neonatal HIE after PA.
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KEYWORD
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full-term neonates, Hobel risk score, mononuclear layer, perinatal asphyxia, stem cells, Thompson score
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