Predicting Retinopathy of Prematurity Risk Using Plasma Levels of Insulin-like Growth Factor 1 (IGF1), Tumor Necrosis Factor-Alpha (TNF-Alpha), and Neonatal Parameters.
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BACKGROUND/OBJECTIVES: Retinopathy of Prematurity (ROP) remains a leading cause of vision impairment in premature infants, especially those with Respiratory Distress Syndrome (RDS) necessitating respiratory support. This study aimed to identify correlations between plasma levels of Insulin-like Growth Factor 1 (IGF1) and Tumor Necrosis Factor-alpha (TNF-alpha), and the risk of developing ROP. Additionally, it explored the association of ROP severity grades with plasma levels of glucose, lactate dehydrogenase (LDH), creatin phosphokinase (CPK), and other biomarkers, aiming to uncover predictive markers for ROP risk and severity in this population. METHODS: This prospective study included premature neonates admitted with RDS requiring respiratory support, conducted over 18 months at the Neonatal Intensive Care Unit of the Louis Turcanu Emergency Clinical Hospital for Children, Timisoara. Plasma levels of IGF1 and TNF-alpha were measured on days 1 and 14 post-birth, alongside the initial assessment of glucose, LDH, and CPK levels. RESULTS: Significant correlations were observed between lower gestational age and elevated LDH levels on day 7-10 (rho = -0.341, p = 0.0123) and between TNF-alpha levels at 2 weeks and ROP severity (rho = 0.512, p = 0.0004). Elevated IGF1 levels were protective against ROP, with Beta coefficients of 0.37 (p = 0.0032) for the first collection and 0.32 (p = 0.0028) for the second, suggesting their potential as biomarkers for ROP risk assessment. Higher levels of TNF-alpha at 2 weeks were associated with an increased risk of ROP (Beta = -0.45, p = 0.0014), whereas higher IGF1 levels offered protective effects against ROP, with Beta coefficients of 0.37 (p = 0.0032) for the first collection and 0.32 (p = 0.0028) for the second. Elevated LDH levels on day 7-10 post-birth were linked to an increased risk of ROP (Beta = 0.29, p = 0.0214). CONCLUSIONS: These findings highlight the potential of IGF1 and TNF-alpha as predictive biomarkers for ROP, offering avenues for early intervention and improved management strategies in this high-risk group.