New insight into the pathogenesis of retinopathy of prematurity: assessment of whole-genome expression.

Background: Retinopathy of prematurity (ROP) is one of the most common preventable causes of blindness and impaired vision among children in developed countries. The aim of the study was to compare whole-genome expression in the first month of life in groups of infants with and without ROP.

Methods: Blood samples were drawn from 111 newborns with a mean gestational age of 27.

[Difficulties in diagnosing febrile states in 3-month-old infant].

Wide spectrum of infectious causes should be considered while diagnosing febrile states in infants.The aim of study is to present the case of 3-month-old infant with febrile states. Boy was admitted to Department of Pediatrics to Infant Unit because of the febrile states lasting for 4 weeks.

Ovarian hyperstimulation syndrome in newborns--a case presentation and literature review.

Unlabelled: Preterm ovarian hyperstimulation syndrome (POHS) is a rare condition in which immaturity of the gonadal axis is accepted as the cause. Based on our case and 8 cases from the literature, we made an attempt to specify the mechanisms underlying the syndrome and its pathognomonic signs. All POHS newborns were born between 24 and 31 weeks postconception age (WPCA) and developed vulvar, hypogastric and upper leg swelling, and ovarian follicular cyst/cysts (10-40 mm in diameter) with mildly or considerably elevated E(2) concentrations (80-5,300 pmol/l) between 35 and 39 WPCA.

Genetic risk factors of bronchopulmonary dysplasia.

The aim of the study was to assess the association between bronchopulmonary dysplasia (BPD) and polymorphisms of genes coding for vascular endothelial growth factor (VEGF), transforming growth factor (TGF-[beta]1), insulin-like growth factor (IGF-1), and 5,10-methylenetetrahydrofolate reductase (MTHFR). A sample of 181 newborns with mean gestational age of 28 wk was prospectively evaluated. Molecular analysis of TGF-[beta]1 -800G>A, -509C>T, 10T>C, 25G>C, VEGF -460T>C and 405G>C and MTHFR 677C>T polymorphisms were performed and the number of CA repeats in the promoter region of IGF-1 gene was assessed.

The clinical role of vascular endothelial growth factor (VEGF) system in the pathogenesis of retinopathy of prematurity.

Background: Recent experimental studies suggest that vascular endothelial growth factor (VEGF) can play an important role in the development of retinopathy of prematurity (ROP). There are interesting observations of VEGF concentration in the serum, depending on its gene polymorphism which can have an impact on abnormal vessel development in the retina.

Aim: Analysis of: (1) association of VEGF gene polymorphisms and the incidence of ROP, (2) correlation between serum concentration of VEGF and soluble VEGF receptor 1 (sVEGFR-1) during the 1st month of life and the risk of ROP, and (3) correlation between VEGF gene polymorphisms and VEGF serum concentrations.