Objective To discuss the expression of peripheral blood mononuclear cells myeloid differentiation factor 88(My D88) and Toll-like receptor 4(TLR4) in multiple organ dysfunction syndrome(MODS) after asphyxia in premature infants, in order to provide a new idea for the early diagnosis and prognosis evaluation of MODS after asphyxia in premature infants. Methods A prospective study was conducted on 115 cases of asphyxiated premature infants in Neonatology Department of Tangshan Maternal & Child Health Care Hospital from January 2019 to December 2020.According to 1 min Apgar scores, the asphyxiated premature infants were divided into mild asphyxia group (n=70) and severe asphyxia group (n=45).Meanwhile, 50 cases of healthy preterm infants were selected as the control group.The prevalence of MODS, the mortality of MODS and the incidence of single organ damage were compared among the three groups.The expression levels of My D88 mRNA and protein, TLR4 mRNA and protein were compared among three groups. Results The incidence rates of MODS in severe asphyxia group, mild asphyxia group and control group were 73.33%, 31.43% and 6.00%, respectively, and the mortality rates of MODS were 24.44%, 5.71% and 0, respectively.There were statistically significant differences in the incidence rate of MODS and the mortality rate of MODS among the three groups (χ2=47.845, 16.978, P<0.001).The incidence of single organ damage in severe asphyxia group and mild asphyxia group were significantly higher than that in control group (P<0.05), and the incidence of single organ damage in severe asphyxia group was significantly higher than that in mild asphyxia group (P<0.05).The expression levels of My D88 mRNA and protein, TLR4 mRNA and protein in severe asphyxia group and mild asphyxia group were significantly higher than those in control group, which were also significantly higher in severe asphyxia group than in mild asphyxia group (F=4.251, 4.804, 4.772, 4.690, P<0.001). Conclusions The incidence of MODS and the expression levels of peripheral blood mononuclear cells My D88 and TLR4 are significantly increased in asphyxiated premature infants.My D88 and TLR4 are expected to be indicators for early diagnosis and prognosis evaluation of MODS after asphyxia in premature infants.
Key words
premature infants /
asphyxia /
multiple organ dysfunction syndrome /
myeloid differentiation factor 88 /
Toll-like receptor 4
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