In this study, we sought to determine the association between environmental factors and nonsyndromic cleft of the lip and/or palate （NSCLP） to understand the etiology of the disease. A total of 200 NSCLP cases and 3...In this study, we sought to determine the association between environmental factors and nonsyndromic cleft of the lip and/or palate （NSCLP） to understand the etiology of the disease. A total of 200 NSCLP cases and 327 controls were recruited at the Maternal and Child Health Hospital of Xuzhou City. We conducted face-to-face interviews with the mothers of both cases and controls. The factors increasing the risk of NSCLP were a positive family history [odds ratio （OR）=56.74], pesticide exposure （OR=8.90）, and indoor decoration pollution （OR= 4.32）. On the other hand, the factors decreasing the risk of NSCLP were a high education level （OR=0.22） and supplementation of folic acid （OR=0.23） and multivitamins （OR=0.16）. Positive family history, pesticide exposure, and indoor decoration pollution are associated with the risk of NSCLP. In contrast, high education level and folic acid and multivitamin supplementation are protective factors against NSCLP.展开更多
Dear Editor： Increased homocysteine levels due to vitamin B6 or B12 deficiency or genetic defects in folate pathway genes are associated with an increased incidence of non-syndromic cleft lip with or without cleft p...Dear Editor： Increased homocysteine levels due to vitamin B6 or B12 deficiency or genetic defects in folate pathway genes are associated with an increased incidence of non-syndromic cleft lip with or without cleft palate （NSCLP）tlj. Thymidylate synthase （TS） is a folate-dependent enzyme that catalyzes methylation of 2＇-deoxyuridine-5＇-monophosphate （dUMP） to 2＇-deox- ythymidine-5＇-monophosphate （dTMP）, a rate-limiting step in DNA synthesis,展开更多
唇腭裂(cleft lip and palate, CLP)是最为普遍的先天性出生缺陷之一,在不同地区和不同人群中患病率有一定的差异性,男性患病率略高,发病机制复杂,还有待持续深入研究,目前观点认为遗传和环境因素的共同作用是导致其发病的主要原因。本...唇腭裂(cleft lip and palate, CLP)是最为普遍的先天性出生缺陷之一,在不同地区和不同人群中患病率有一定的差异性,男性患病率略高,发病机制复杂,还有待持续深入研究,目前观点认为遗传和环境因素的共同作用是导致其发病的主要原因。本文就非综合征型唇腭裂(non-syndromic cleft lip with or without cleft palate, NSCL/P)的相关基因学的研究方法、致病基因、基因与WNT信号通路之间的关联性、基因与环境因素交互作用及早期产前诊断方面,总结了近几年NSCL/P研究进展,为进一步研究NSCL/P病因及预防提供参考。展开更多
目的:探讨TGFα基因和TGFβ3基因多态性与国人非综合征型唇腭裂发生的关系。方法:取56例非综合征型唇腭裂(nonsyndromic cleft lip with or without palate, NSCLP)、26例单发性腭裂(cleft palate only, CPO)及28例单纯颌骨骨折患者的全...目的:探讨TGFα基因和TGFβ3基因多态性与国人非综合征型唇腭裂发生的关系。方法:取56例非综合征型唇腭裂(nonsyndromic cleft lip with or without palate, NSCLP)、26例单发性腭裂(cleft palate only, CPO)及28例单纯颌骨骨折患者的全血DNA,于TGFα基因3′端未翻译区序列(3′untranslated re-gion,3′UTR)及TGFβ3第5外显子(5th exon)序列设计引物,PCR法扩增目的片段,单链构像多态性技术分析等位基因及基因型频率在各组之间分布的差异。将目的片段克隆、测序寻找其多态位点。结果:56例NSCLP、26例CPO和28例对照组全血中均扩增出345 bp TGFα和193 bp TGFβ3目的片段。共发现TGFα3种等位基因A1、A2和A3及TGFβ3 2种等位基因B1和B2。各等位基因及基因型频数在NSCLP、CPO和对照组之间无统计学差异。测序表明TGFα存在3处多态位点和TGFβ3存在1处多态位点。结论:TGFα及TGFβ3基因多态性与我国汉族人NSCLP和CPO的发病无显著相关。展开更多
非综合征性唇腭裂(nonsyndromic cleft of lip with or without palate,NSCL/P)是新生儿颌面部最常见的先天性出生缺陷之一,与遗传因素和多种环境有关。叶酸缺乏、代谢紊乱及介导其代谢的关键酶基因的多态性可能是导致NSCL/P的重要因素...非综合征性唇腭裂(nonsyndromic cleft of lip with or without palate,NSCL/P)是新生儿颌面部最常见的先天性出生缺陷之一,与遗传因素和多种环境有关。叶酸缺乏、代谢紊乱及介导其代谢的关键酶基因的多态性可能是导致NSCL/P的重要因素,母体孕期摄入叶酸可降低NSCL/P的患病风险。本文就叶酸代谢及介导其代谢的关键酶基因的多态性与NSCL/P的相关性进行综述。展开更多
基金supported by the National Natural Science Foundations of China(No.81273103)the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)
文摘In this study, we sought to determine the association between environmental factors and nonsyndromic cleft of the lip and/or palate （NSCLP） to understand the etiology of the disease. A total of 200 NSCLP cases and 327 controls were recruited at the Maternal and Child Health Hospital of Xuzhou City. We conducted face-to-face interviews with the mothers of both cases and controls. The factors increasing the risk of NSCLP were a positive family history [odds ratio （OR）=56.74], pesticide exposure （OR=8.90）, and indoor decoration pollution （OR= 4.32）. On the other hand, the factors decreasing the risk of NSCLP were a high education level （OR=0.22） and supplementation of folic acid （OR=0.23） and multivitamins （OR=0.16）. Positive family history, pesticide exposure, and indoor decoration pollution are associated with the risk of NSCLP. In contrast, high education level and folic acid and multivitamin supplementation are protective factors against NSCLP.
基金funding from the Indian Council of Medical Research(ICMR),Government of India(Project Ref.No.56/15/2007-BMS)
文摘Dear Editor： Increased homocysteine levels due to vitamin B6 or B12 deficiency or genetic defects in folate pathway genes are associated with an increased incidence of non-syndromic cleft lip with or without cleft palate （NSCLP）tlj. Thymidylate synthase （TS） is a folate-dependent enzyme that catalyzes methylation of 2＇-deoxyuridine-5＇-monophosphate （dUMP） to 2＇-deox- ythymidine-5＇-monophosphate （dTMP）, a rate-limiting step in DNA synthesis,
文摘唇腭裂(cleft lip and palate, CLP)是最为普遍的先天性出生缺陷之一,在不同地区和不同人群中患病率有一定的差异性,男性患病率略高,发病机制复杂,还有待持续深入研究,目前观点认为遗传和环境因素的共同作用是导致其发病的主要原因。本文就非综合征型唇腭裂(non-syndromic cleft lip with or without cleft palate, NSCL/P)的相关基因学的研究方法、致病基因、基因与WNT信号通路之间的关联性、基因与环境因素交互作用及早期产前诊断方面,总结了近几年NSCL/P研究进展,为进一步研究NSCL/P病因及预防提供参考。
文摘目的:探讨TGFα基因和TGFβ3基因多态性与国人非综合征型唇腭裂发生的关系。方法:取56例非综合征型唇腭裂(nonsyndromic cleft lip with or without palate, NSCLP)、26例单发性腭裂(cleft palate only, CPO)及28例单纯颌骨骨折患者的全血DNA,于TGFα基因3′端未翻译区序列(3′untranslated re-gion,3′UTR)及TGFβ3第5外显子(5th exon)序列设计引物,PCR法扩增目的片段,单链构像多态性技术分析等位基因及基因型频率在各组之间分布的差异。将目的片段克隆、测序寻找其多态位点。结果:56例NSCLP、26例CPO和28例对照组全血中均扩增出345 bp TGFα和193 bp TGFβ3目的片段。共发现TGFα3种等位基因A1、A2和A3及TGFβ3 2种等位基因B1和B2。各等位基因及基因型频数在NSCLP、CPO和对照组之间无统计学差异。测序表明TGFα存在3处多态位点和TGFβ3存在1处多态位点。结论:TGFα及TGFβ3基因多态性与我国汉族人NSCLP和CPO的发病无显著相关。
文摘非综合征性唇腭裂(nonsyndromic cleft of lip with or without palate,NSCL/P)是新生儿颌面部最常见的先天性出生缺陷之一,与遗传因素和多种环境有关。叶酸缺乏、代谢紊乱及介导其代谢的关键酶基因的多态性可能是导致NSCL/P的重要因素,母体孕期摄入叶酸可降低NSCL/P的患病风险。本文就叶酸代谢及介导其代谢的关键酶基因的多态性与NSCL/P的相关性进行综述。
