• Jiaqun Yan, Hongquan Song, Na Mi, Xiaohui Jiao, and Yanru Hao.
• Department of Stomatology, Harbin Medical University Cancer Hospital Department of Oral Maxillofacial Surgery, the First Affiliated Hospital Department of Endodontics, the First Affiliated Hospital, Harbin Medical University, Harbin Department of Stomatology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences (CAMS), Peking Union Medical College (PUMC), Beijing, China.
• Medicine (Baltimore). 2017 Sep 1; 96 (37): e7973e7973.

BackgroundNon-syndromic cleft lip with or without cleft palate (NSCL/P) is a common orofacial congenital anomaly. The objective of the present study was to analyze the association of single nucleotide polymorphisms (SNPs) in the NAT2 and EGF61genes with NSCL/P in a Chinese population.MethodsThe frequencies of NAT2 (rs1799929)and EGF61 (rs4444903) gene variations were examined in a group of 285 NSCL/P patients and in 315 controls. Peripheral venous blood samples were collected for DNA extraction. Genotyping of the 2 SNPs was carried out using a mini sequencing (SNaPshot) method. Data were analyzed using the chi-square test.ResultsWe found a significant association between the EGF61 (rs4444903) and NSCL/P (P = .01) genes.Conversely, NAT2 (rs1799929) was not significantly different between the cases and the control group.The genotype frequencies of rs4444903GA showed a significant difference compared with GG genotype as a reference (odds ratio = 0.59; 95% confidence interval: 0.42-0.84, P = .01).ConclusionOur study showed that the EGF61 rs4444903GA genotype had a decreased risk of NSCL/P. Our data provides further evidence regarding the role of EGF61 variations in the development of NSCL/P in families of the studied populations.

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