Association of SP-C gene codon 186 polymorphism (rs1124) and risk of RDS

Background: Respiratory distress syndrome (RDS) is a severe pulmonary disease that mainly affects preterm neonates. Surfactant-protein genes' polymorphisms have been mostly evaluated as the candidate contributors in genetics of RDS. However, the results are diverse in different populations. We...

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Published in:The journal of maternal-fetal & neonatal medicine 2017-11, Vol.30 (21), p.2585-2589
Main Authors: Fatahi, Neda, Dalili, Hosein, Kalani, Majid, Niknafs, Nikoo, Shariat, Mamak, Tavakkoly-Bazzaz, Javad, Amini, Elaheh, Esmaeilnia Shirvani, Tahereh, Hardani, Amir kamal, Taheritafti, Roya, Ghasemi-Fakhr, Nasrin, Ghadami, Mohsen, Nayeri, Fatemeh, Rashidi-Nezhad, Ali
Format: Article
Language:English
Subjects:
association
Case-Control Studies
Female
Genetic Predisposition to Disease
Humans
Infant, Newborn
Iran
Male
Polymorphism, Single Nucleotide
Pulmonary Surfactant-Associated Protein C - genetics
RDS
Respiratory Distress Syndrome, Newborn - genetics
single-nucleotide polymorphism
SP-C
SP-C codon 186 polymorphism
SPC N186S
surfactant protein C
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Summary:Background: Respiratory distress syndrome (RDS) is a severe pulmonary disease that mainly affects preterm neonates. Surfactant-protein genes' polymorphisms have been mostly evaluated as the candidate contributors in genetics of RDS. However, the results are diverse in different populations. We aimed at investigating the association of rs1124 with RDS development. Method: Three hundred and thirty five preterm neonates were enrolled in a multicenter case-control study. Respiratory distress (RD) was scored according to Downes' scoring system. Genotyping was performed by PCR-RFLP method. Result: One hundred and sixty six neonates showed RDS and 169 did not. Gestational age (GA) was significantly lower in RDS group compared to the controls. In female preterm newborns, AA genotype was found more frequently in RDS group. In RDS group, AA genotype was also associated with milder RD irrespective of gender. In neonates who were born 28-34 weeks, RD appeared to be more severe in the RDS group and males. Conclusions: This is the first report of association of SFTPC rs1124 polymorphism with RDS development in Iranian newborns. The current study suggests that GA 
ISSN:1476-7058
1476-4954
DOI:10.1080/14767058.2016.1256994