贺 晶, 杨 月, 刘 伶, 王 东. [Influence of maternal and infant factors on CD34
+ hematopoietic stem/progenitor cells in umbilical cord blood].
ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2021;
23:43-48. [PMID:
33476536 PMCID:
PMC7818158 DOI:
10.7499/j.issn.1008-8830.2008172]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 11/30/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE
To study the association of different maternal and infant factors with the number of total nucleated cells and CD34+ hematopoietic stem/progenitor cells in umbilical cord blood, and to provide a reference for reasonable selection of umbilical cord blood in the cord blood bank.
METHODS
A prospective study was performed for the umbilical cord blood samples of 130 neonates who were born in Dalian Women and Children's Medical Center from June 2019 to January 2020, with a male/female ratio of 1:1. Related perinatal information was collected, including maternal age and blood type, presence or absence of gestational diabetes or gestational hypertension, pregnancy method, mode of delivery, singleton pregnancy/twin pregnancy, body weight and sex of neonates, Apgar score after birth, and the conditions of placenta, amniotic fluid, and umbilical cord.
RESULTS
The neonates were grouped according to maternal blood type, gestational diabetes, gestational hypertension, pregnancy method, mode of delivery, singleton pregnancy/ twin pregnancy, sex of neonates, Apgar score after birth, placental morphology, meconium staining of amniotic fluid, and umbilical cord around the neck. The comparison between groups showed no significant differences in the numbers of total nucleated cells and CD34+ cells in umbilical cord blood (P > 0.05). Maternal age and neonatal body weight were not correlated with the number of total nucleated cells in umbilical cord blood (P > 0.05), and neonatal body weight was not correlated with the number of CD34+ cells (P > 0.05), while maternal age was positively correlated with the number of CD34+ cells (P < 0.05).
CONCLUSIONS
The number of CD34+ cells in umbilical cord blood increases with the increase in maternal age, and therefore, umbilical cord blood in the cord blood bank may be selected based on maternal age.
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