Association of MTHFD Gene Polymorphisms and Maternal Smoking With Risk of Congenital Heart Disease: A Hospital-Based Case-Control Study

Author(s):  
Xinli Song ◽  
Qiongxuan Li ◽  
Jingyi Diao ◽  
Jinqi Li ◽  
Yihuan Li ◽  
...  

Abstract Background: MTHFD may affect the embryonic development by elevated homocysteine levels, DNA synthesis and DNA methylation, but limited number of genetic variants of MTHFD was focused on the association with congenital heart disease (CHD). This study examined the role of MTHFD and maternal smoking in CHD risk, and investigated their interaction effects in Chinese populations. Methods: A case-control study of 464 mothers of CHD infants and 504 mothers of health controls was performed. The exposures of interest were maternal tobacco exposure, single nucleotide polymorphisms (SNPs) of maternal MTHFD gene. The logistic regression model was used for accessing the strength of association.Results: Mothers exposed to secondhand smoke during three months before pregnancy (adjusted odds ratio [aOR] = 1.56; 95% confidence interval [CI]: 1.13-2.15) and in the first trimester of pregnancy (aOR = 2.24; 95%CI: 1.57-3.20) were observed an increased risk of CHD. Our study also found that polymorphisms of maternal MTHFD gene at rs1950902 (AA vs. GG: aOR = 1.73, 95% CI: 1.01-2.97), rs2236222 (GG vs. AA: aOR = 2.38, 95% CI: 1.38-4.12), rs1256142 (GA vs.GG: aOR = 1.57, 95% CI: 1.01-2.45) and rs11849530 (GG vs. AA: aOR = 1.68, 95% CI: 1.02-2.77) were significantly associated with higher risk of CHD. Furthermore, we found the different degrees of interaction effects between polymorphisms of the MTHFD gene including rs1950902, rs2236222, rs1256142, rs11849530 and rs2236225, and maternal tobacco exposure.Conclusions: Maternal polymorphisms of MTHFD gene at rs1950902, rs2236222, rs1256142 and rs11849530, maternal tobacco exposure and their interactions are significantly increased the risk of CHD in offspring. However, more studies in different ethnic populations with a larger sample and prospective designs are required to confirm our findings.Trial registration: Registration number: ChiCTR1800016635; http://www.chictr.org.cn/edit.aspx?pid=28300&htm=4

Author(s):  
Samah Alasrawi ◽  
◽  
Hessa Almansoori ◽  

Objective: To investigate the association of maternal diabetes, maternal smoking and syndromes with congenital heart disease (CHD) in patients attending Aljalila cardiology clinic between January 2020 and May of 2020. Methods: A case control study to assess the association of maternal diabetes, maternal smoking and syndromes with CHD. All patients that presented to the clinic between January 2020 and May of 2020 were included. An interviewer administered questionnaire was used to record the presence of maternal diabetes, maternal smoking, and the type of syndrome and type of CHD. Patients with CHD were included in the case group and patients who did not have CHD were in the control group. Age, gender, and nationality were also collected from the hospital records. Fisher exact test and logistic regression was used to analyze the results. Results: A total of 177 cases and 211 controls were recruited. All the risk factors increase the risk of CHD, with maternal diabetes (OR 6.3, 95% CI 2.7-14.6) having the strongest association, then syndromes (OR 5.1, 95% CI 2.3-11.3) and lastly maternal smoking (OR 4.0, 95% CI 1.0-16.3). The most common type of CHD is ventricular septal defect. Conclusion: Maternal diabetes, maternal smoking and syndromes are significant risk factors of CHD in children visiting Aljalila cardiology clinic. Action needs to be taken in order to decrease these risk factors and so, decrease the incidence of CHD in the future. Clearly, more research is needed in order to identify other risk factors for patients in the United Arab Emirates (UAE)


PEDIATRICS ◽  
2019 ◽  
Vol 144 (5) ◽  
pp. e20184114 ◽  
Author(s):  
Eric R. Sigmon ◽  
Michael Kelleman ◽  
Apryl Susi ◽  
Cade M. Nylund ◽  
Matthew E. Oster

The Lancet ◽  
2017 ◽  
Vol 390 ◽  
pp. S8 ◽  
Author(s):  
Mahmoud Zaqout ◽  
Emad Aslem ◽  
Mazen Abuqamar ◽  
Osama Abughazza ◽  
Joseph Panzer ◽  
...  

2003 ◽  
Vol 24 (10) ◽  
pp. 753-757 ◽  
Author(s):  
Chandrama Chakrabarti ◽  
Sunil K. Sood ◽  
Vincent Parnell ◽  
Lorry G. Rubin

AbstractObjectives:To describe a group of infants with complex congenital heart disease (CCHD) who had candidemia postoperatively and to perform a case–control study of risk factors.Design:Descriptive and case–control study.Setting:Tertiary-care medical centers.Patients:Infants with CCHD who underwent cardiac surgery and developed candidemia. Controls were matched for congenital heart disease lesions, age, and postoperative hospital stay.Results:Of 95 infants younger than 6 months with CCHD who underwent cardiac surgery between January 1999 and April 2001, 6 (6.3%) developed candidemia with 5 different species. The candidemia was prolonged (range, 12 to 32 days; median, 17 days). The interval between cardiac surgery and onset of candidemia was 12 to 57 days (median, 24 days). All had a central venous catheter inserted 8 to 50 days prior to the onset of candidemia. The mortality rate was 83%, compared with 13% for the group without candidemia. A univariate analysis of the potential risk factors revealed that duration of total parenteral nutrition (TPN), duration of antibiotics, intraoperative cardiopulmonary bypass time, and documentation of an intravascular thrombus were associated with candidemia. In multivariate analysis, long duration of TPN and documentation of a thrombus were associated with candidemia.Conclusions:Candidemia following cardiac surgery for infants with CCHD was persistent and associated with high mortality. The variety of species indicates that this was not a common-source outbreak. Risk factors associated with candidemia were duration of TPN and documentation of an intravascular thrombus.


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