ArticleBirth defects research. Part A, Clinical and molecular teratology2013
Prenatal exposure to nitrosatable drugs, vitamin C, and risk of selected birth defects.
Article in Birth defects research. Part A, Clinical and molecular teratology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 14 citations in OpenAlex.
- Maternal Myo-Inositol Intake and Congenital Heart Defects in Offspring: A Population-Based Case-Control Study.BJOG : an international journal of obstetrics and gynaecology · 2026Article
- Evaluating Differences in Nonsyndromic Orofacial Clefts by Infant Sex: National Birth Defects Prevention Study, 1997-2011.The Journal of pediatrics · 2026Article
- Preconception Nutrition, Physical Activity, and Birth Outcomes in Adolescent Girls.Journal of pediatric and adolescent gynecology · 2015Article
- Congenital Malformations and Consequential Epidemiology.Current epidemiology reports · 2015Article
- Fibronectin regulation by vitamin C treatment in kidneys of nicotinic mice offspring.Iranian Red Crescent medical journal · 2014Article
Corrections and comments
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Authors and funding
14 authors at 5 institutions in 1 country.
Funding
Abstract
unlabelledNitrosatable drugs, such as secondary or tertiary amines and amides react with nitrite in an acidic environment to form N-nitroso compounds, teratogens in animal models. Vitamin C is a known nitrosation inhibitor.
methodsUsing data from the National Birth Defects Prevention Study, we assessed nitrosatable drug exposure and vitamin C intake during the first trimester among 11,606 case-mothers of infants with oral clefts, limb deficiencies (LDs), or congenital heart defects and 6807 control-mothers of infants without major birth defects during 1997-2005. Daily intake of vitamin C was estimated from maternal interviews that elicited information about supplement use and dietary intake.
resultsWith no reported use of nitrosatable drugs as the referent group, a lower odds ratio (OR) was observed for transverse LDs among births to mothers exposed to secondary amine drugs and daily vitamin C supplementation (adjusted odds ratio [aOR] 1.2, 95% confidence interval [CI] 0.83-1.8) compared with women taking these drugs and no supplementation (aOR 2.7, 95% CI 1.5-4.6). The OR for longitudinal LDs associated with secondary amine exposure was lower with daily dietary vitamin C intake ≥85 mg (aOR 1.2, 95% CI 0.68-2.0) compared with <85 mg (aOR 1.9, 95% CI 1.2-3.1). Daily vitamin C supplementation in combination with higher dietary vitamin C intake reduced associations between nitrosatable drug exposures and limb deficiencies and atrial septal defects not otherwise specified.
conclusionPrenatal dietary and vitamin C supplement intake may diminish the association between nitrosatable drug exposure during pregnancy and selected birth defects.
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