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de Aragão Santos TW, Dos Santos Catena A, da Silva Mattos S, de Lima Filho JL, Gondim Martins DB. The incidence of NOS3 gene polymorphisms on newborns with large and small birth weight. Mol Biol Rep 2020; 47:8545-8552. [PMID: 33063148 DOI: 10.1007/s11033-020-05897-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/03/2020] [Indexed: 11/26/2022]
Abstract
The NOS3 gene polymorphisms T-786C, G894T and VNTR 4b/a are associated with a predisposition to the development of Metabolic Syndrome (MetS). The NOS3 gene contributes to a normal pregnancy and fetal development. According to their birthweight, newborns can be classified as: small (SGA), adequate (AGA) or large (LGA) for gestational age. The SGA and LGA present a higher risk of developing disorders related to MetS, both during childhood and adulthood. Therefore, the aim of this work is to relate the incidence of G894T, T-786C and VNTR 4b/a on SGA and LGA newborns and their mothers. 204 blood samples were collected from mothers (102) and the umbilical cords of 102 newborns (SGA = 12; AGA = 47; LGA = 43). The genotyping was performed through PCR-RFLP to evaluate presence of the G894T, T-786C and VNTR 4b/a polymorphisms. A significant difference was found between the groups of newborns in the genotypic frequency of T-786C, but without Hardy-Weinberg equilibrium. The VNTR 4b/a and the G894T polymorphisms showed no significance between the groups. The haplotype analysis showed that the SGA newborns presented the higher frequency of 4aGT (9.8%) and of the 4aTT combination (25.4%), while LGA newborns presented the higher frequency of the 4bTT haplotype (23%). Only the SGA newborns and their mothers presented the 4aTC haplotype. In conclusion, the NOS3 polymorphisms do not appear to be a factor to inadequate birth weight. However, the G894T and VNTR 4b/a polymorphisms, and the haplotype 4aTC, seem to influence the occurrence of SGA.
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Affiliation(s)
- Thaysa Walléria de Aragão Santos
- Molecular Prospection and Bioinformatics Group (ProspecMol), Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Avenue Professor Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil.
| | - Andriu Dos Santos Catena
- Molecular Prospection and Bioinformatics Group (ProspecMol), Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Avenue Professor Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil
| | | | - José Luiz de Lima Filho
- Molecular Prospection and Bioinformatics Group (ProspecMol), Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Avenue Professor Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil
| | - Danyelly Bruneska Gondim Martins
- Molecular Prospection and Bioinformatics Group (ProspecMol), Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Avenue Professor Moraes Rego, 1235, Cidade Universitária, Recife, Pernambuco, 50670-901, Brazil
- Biochemistry Department, Federal University of Pernambuco (UFPE), Recife, Brazil
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