 This study examined the association between the polymorphisms of the glutafionase transferase, GST, gene and broncopulmonary dysplasia, BPD, a common complication of preterm birth. The results showed no significant differences in the incidence of BPD or the need for respiratory support among those with different GST gene polymorphisms. However, the study did find that children with certain combinations of GST gene polymorphisms had significantly longer durations of mechanical ventilation than those without these combinations. These findings suggest that further studies should be conducted to optimize mechanical ventilator settings based on the genetic makeup of individual patients. This article was authored by O. M. Kovaliova, Sikspo Kylk, Z. I. Rosika, and others.