Objective: We aimed to study the association between rs7525173, rs2236518, rs2493264 single nucleotide polymorphism (SNP) in the PRDM16 gene, smoking, alcohol exposures, and nonsyndromic cleft lip with or without cleft palate (NSCL/P).
Methods: A total of 157 case-parent trios were selected, and SNPs were genotyped by using ligase detection reaction (LDR) and direct sequencing methods. Transmission disequilibrium test (TDT) and linkage disequilibrium (LD) tests were con-ducted to analyze the data. A total of 1 710 patients with orofacial clefts and 956 healthy newborns were enrolled in the epidemiological survey. The smoking and drinking exposures of parents during early pregnancy were analyzed.
Results: The C allele at rs2236518 was over-transmitted for NSCPO (P<0.05). Statistical differences were observed among three factors, namely, maternal smoking, maternal passive smoking, and maternal drinking (P<0.05).
Conclusions: The rs2236518 at PRDM16 gene, maternal smoking, maternal passive smoking, and maternal drinking were closely related to the occurrence of NSCL/P.
目的 探究PRDM16基因rs7525173、rs2236518、rs2493264及母亲孕早期吸烟饮酒与非综合征型唇腭裂（NSCL/P）发生的相关性。方法 收集157个患者-父母核心家系，采用连接酶检测反应（LDR）和直接测序两种方法进行基因分型，使用传递不平衡检验（TDT）、连锁不平衡检验（LD）等对数据进行统计分析。收集1 710例唇腭裂患者及956例健康新生儿，填写《唇腭裂患者流行病学调查问卷》，对孕期父母吸烟饮酒暴露因素进行分析。结果 rs2236518位点C等位基因在腭裂组中存在过传递（P<0.05），其余位点在各组中均无明显统计学意义。母亲吸烟、母亲被动吸烟及母亲饮酒3个因素存在统计学差异（P<0.05）。结论 PRDM16基因rs2236518多态性与NSCL/P存在相关性，母亲吸烟、母亲被动吸烟及母亲饮酒与唇腭裂的发生存在密切联系。.
Keywords: PRDM16 gene; linkage disequilibrium; nonsyndromic cleft lip with or without cleft palate; single nucleotide polymorphism; transmission disequilibrium test.