Abstract:Objective To study the correlation of interleukin-6 (IL-6), high-mobility group protein B1 (HMGB1), astrogenic protein (S100B), and neuron-specific enolase (NSE) with neonatal asphyxia (NA) brain injury.Methods From February 2017 to February 2019, 120 children with NA (asphyxia group) who met the inclusion criteria in our hospital were retrospectively selected, and medical records were collected. According to different degrees of asphyxia, 92 cases were classified into mild asphyxia group, and 28 cases were classified into severe asphyxia group. In addition, 100 cases of full-term newborns delivered at the same time in our hospital were recorded as the control group. Serum levels of IL-6, HMGB1, S100B, and NSE were compared in each group. In addition, 120 cases of asphyxiated neonates were examined by head CT. According to the head CT examination results, 57 cases were divided into normal head CT group, and 63 cases were divided into abnormal head CT group. Serum levels of IL-6, HMGB1, S100B, and NSE in the two groups were compared, and the correlation between brain injury and serum levels of IL-6, HMGB1, S100B, and NSE after NA was analyzed by Spearman. All children were followed up for 1 years, and were divided into 88 patients with good prognosis and 32 patients with poor prognosis. Serum levels of IL-6, HMGB1, S100B, and NSE were compared between the two groups.Results The levels of serum IL-6, HMGB1, S100B, and NSE in all group were compared by ANOVA, the differences were statistically significant (P < 0.05); the serum levels of IL-6, HMGB1, S100B, and NSE in mild asphyxia group and severe asphyxia group were higher than those in control group, and the levels of the above indicators in the severe asphyxia group were higher than those in the mild asphyxia group (P < 0.05). The levels of serum IL-6, HMGB1, S100B, and NSE in the abnormal head CT group were higher than those in the normal head CT group (P < 0.05). Spearman correlation analysis showed that brain injury after NA was positively correlated with levels of serum IL-6 (rs = 0.428), HMGB1 (rs = 0.442), S100B (rs = 0.385), and NSE (rs = 0.430) (P <0.05). The levels of IL-6, HMGB1, S100B, and NSE in the poor prognosis group were higher than those in the good prognosis group (P < 0.05).Conclusion Serum IL-6, HMGB1, S100B, and NSE levels are closely related to the degree of NA and brain injury after asphyxiation, which may be used as an auxiliary index to evaluate the condition and predict the prognosis of NA children.