Evidence map›Paper›PMID 25411282›Full record

ArticleThe American journal of clinical nutrition2014

Preconception serum 1,1,1-trichloro-2,2,bis(p-chlorophenyl)ethane and B-vitamin status: independent and joint effects on women's reproductive outcomes.

Fengxiu Ouyang, Matthew P Longnecker, Scott A Venners, Sara Johnson, Susan Korrick, Jun Zhang, Xiping Xu, Parul Christian, Mei-Cheng Wang, Xiaobin Wang

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of clinical nutrition, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.0field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Observational
  7. Healthy diet during pregnancy-navigating the double-edged sword.The American journal of clinical nutrition · 2021
    Article
  8. Article
  9. Article
  10. Article
  11. Joint effects of prenatal air pollutant exposure and maternal folic acid supplementation on risk of autism spectrum disorder.Autism research : official journal of the International Society for Autism Research · 2018
    Article
  12. Article
  13. Article
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 4 countries.

Fengxiu OuyangFrom the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (FO); the Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Department of Health and Human Services, Research Triangle Park, NC (MPL); the Simon Fraser University, Faculty of Health Sciences, Burnaby, Canada (SAV); the Division of General Pediatrics & Adolescent Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD (SJ and XW); the Department of Environmental Health, Harvard School of Public Health, Boston, MA (SK); the Shanghai Jiaotong University School of Public Health, Shanghai, China (JZ); the National Clinical Research Center of Kidney Disease; State Key Laboratory of Organ Failure Research; Nanfang Hospital, Southern Medical University, Guangzhou, China (XX); and the Departments of International Health (PC) and Biostatistics (M-CW) and Center on Early Life Origins of Disease, Department of Population, Family and Reproductive Health (XW), Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD.
Matthew P LongneckerFrom the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (FO); the Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Department of Health and Human Services, Research Triangle Park, NC (MPL); the Simon Fraser University, Faculty of Health Sciences, Burnaby, Canada (SAV); the Division of General Pediatrics & Adolescent Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD (SJ and XW); the Department of Environmental Health, Harvard School of Public Health, Boston, MA (SK); the Shanghai Jiaotong University School of Public Health, Shanghai, China (JZ); the National Clinical Research Center of Kidney Disease; State Key Laboratory of Organ Failure Research; Nanfang Hospital, Southern Medical University, Guangzhou, China (XX); and the Departments of International Health (PC) and Biostatistics (M-CW) and Center on Early Life Origins of Disease, Department of Population, Family and Reproductive Health (XW), Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD.
Scott A VennersFrom the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (FO); the Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Department of Health and Human Services, Research Triangle Park, NC (MPL); the Simon Fraser University, Faculty of Health Sciences, Burnaby, Canada (SAV); the Division of General Pediatrics & Adolescent Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD (SJ and XW); the Department of Environmental Health, Harvard School of Public Health, Boston, MA (SK); the Shanghai Jiaotong University School of Public Health, Shanghai, China (JZ); the National Clinical Research Center of Kidney Disease; State Key Laboratory of Organ Failure Research; Nanfang Hospital, Southern Medical University, Guangzhou, China (XX); and the Departments of International Health (PC) and Biostatistics (M-CW) and Center on Early Life Origins of Disease, Department of Population, Family and Reproductive Health (XW), Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD.
Sara JohnsonFrom the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (FO); the Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Department of Health and Human Services, Research Triangle Park, NC (MPL); the Simon Fraser University, Faculty of Health Sciences, Burnaby, Canada (SAV); the Division of General Pediatrics & Adolescent Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD (SJ and XW); the Department of Environmental Health, Harvard School of Public Health, Boston, MA (SK); the Shanghai Jiaotong University School of Public Health, Shanghai, China (JZ); the National Clinical Research Center of Kidney Disease; State Key Laboratory of Organ Failure Research; Nanfang Hospital, Southern Medical University, Guangzhou, China (XX); and the Departments of International Health (PC) and Biostatistics (M-CW) and Center on Early Life Origins of Disease, Department of Population, Family and Reproductive Health (XW), Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD.
Susan KorrickFrom the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (FO); the Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Department of Health and Human Services, Research Triangle Park, NC (MPL); the Simon Fraser University, Faculty of Health Sciences, Burnaby, Canada (SAV); the Division of General Pediatrics & Adolescent Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD (SJ and XW); the Department of Environmental Health, Harvard School of Public Health, Boston, MA (SK); the Shanghai Jiaotong University School of Public Health, Shanghai, China (JZ); the National Clinical Research Center of Kidney Disease; State Key Laboratory of Organ Failure Research; Nanfang Hospital, Southern Medical University, Guangzhou, China (XX); and the Departments of International Health (PC) and Biostatistics (M-CW) and Center on Early Life Origins of Disease, Department of Population, Family and Reproductive Health (XW), Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD.
Jun ZhangFrom the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (FO); the Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Department of Health and Human Services, Research Triangle Park, NC (MPL); the Simon Fraser University, Faculty of Health Sciences, Burnaby, Canada (SAV); the Division of General Pediatrics & Adolescent Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD (SJ and XW); the Department of Environmental Health, Harvard School of Public Health, Boston, MA (SK); the Shanghai Jiaotong University School of Public Health, Shanghai, China (JZ); the National Clinical Research Center of Kidney Disease; State Key Laboratory of Organ Failure Research; Nanfang Hospital, Southern Medical University, Guangzhou, China (XX); and the Departments of International Health (PC) and Biostatistics (M-CW) and Center on Early Life Origins of Disease, Department of Population, Family and Reproductive Health (XW), Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD.
Xiping XuFrom the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (FO); the Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Department of Health and Human Services, Research Triangle Park, NC (MPL); the Simon Fraser University, Faculty of Health Sciences, Burnaby, Canada (SAV); the Division of General Pediatrics & Adolescent Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD (SJ and XW); the Department of Environmental Health, Harvard School of Public Health, Boston, MA (SK); the Shanghai Jiaotong University School of Public Health, Shanghai, China (JZ); the National Clinical Research Center of Kidney Disease; State Key Laboratory of Organ Failure Research; Nanfang Hospital, Southern Medical University, Guangzhou, China (XX); and the Departments of International Health (PC) and Biostatistics (M-CW) and Center on Early Life Origins of Disease, Department of Population, Family and Reproductive Health (XW), Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD.
Parul ChristianFrom the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (FO); the Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Department of Health and Human Services, Research Triangle Park, NC (MPL); the Simon Fraser University, Faculty of Health Sciences, Burnaby, Canada (SAV); the Division of General Pediatrics & Adolescent Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD (SJ and XW); the Department of Environmental Health, Harvard School of Public Health, Boston, MA (SK); the Shanghai Jiaotong University School of Public Health, Shanghai, China (JZ); the National Clinical Research Center of Kidney Disease; State Key Laboratory of Organ Failure Research; Nanfang Hospital, Southern Medical University, Guangzhou, China (XX); and the Departments of International Health (PC) and Biostatistics (M-CW) and Center on Early Life Origins of Disease, Department of Population, Family and Reproductive Health (XW), Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD.
Mei-Cheng WangFrom the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (FO); the Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Department of Health and Human Services, Research Triangle Park, NC (MPL); the Simon Fraser University, Faculty of Health Sciences, Burnaby, Canada (SAV); the Division of General Pediatrics & Adolescent Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD (SJ and XW); the Department of Environmental Health, Harvard School of Public Health, Boston, MA (SK); the Shanghai Jiaotong University School of Public Health, Shanghai, China (JZ); the National Clinical Research Center of Kidney Disease; State Key Laboratory of Organ Failure Research; Nanfang Hospital, Southern Medical University, Guangzhou, China (XX); and the Departments of International Health (PC) and Biostatistics (M-CW) and Center on Early Life Origins of Disease, Department of Population, Family and Reproductive Health (XW), Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD.
Xiaobin WangFrom the Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (FO); the Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Department of Health and Human Services, Research Triangle Park, NC (MPL); the Simon Fraser University, Faculty of Health Sciences, Burnaby, Canada (SAV); the Division of General Pediatrics & Adolescent Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD (SJ and XW); the Department of Environmental Health, Harvard School of Public Health, Boston, MA (SK); the Shanghai Jiaotong University School of Public Health, Shanghai, China (JZ); the National Clinical Research Center of Kidney Disease; State Key Laboratory of Organ Failure Research; Nanfang Hospital, Southern Medical University, Guangzhou, China (XX); and the Departments of International Health (PC) and Biostatistics (M-CW) and Center on Early Life Origins of Disease, Department of Population, Family and Reproductive Health (XW), Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD.
Johns Hopkins University · USNational Institutes of Health · US

Funding

Human Health Effects Of Exposure To Organochlorine CompoundsZIAES049016 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI LONGNECKER, MATTHEW · 2009 to 2015
$1.0M
DDT, Endocrine Disruption and Reproductive OutcomesR01ES011682 · NIEHS · CHILDREN'S MEMORIAL HOSPITAL (CHICAGO) · PI WANG, XIAOBIN · 2001 to 2003
$926k
ROTATING SHIFTWORK AND REPRODUCTIVE OUTCOMESR01HD032505 · NICHD · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI XU, XIPING X · 1996 to 2000
$307k
Preconception Nutrition, Endocrine Disruptors, Reproductive OutcomesR03ES022790 · NIEHS · JOHNS HOPKINS UNIVERSITY · PI WANG, XIAOBIN · 2013 to 2014
$161k
Intramural NIH HHSNICHD NIH HHS R01 HD32505NIEHS NIH HHS R01 ES11682NIEHS NIH HHS R03 ES022790
6 · The paper itself

Abstract

backgroundAlthough preconception 1,1,1-trichloro-2,2,bis(p-chlorophenyl)ethane (DDT) exposure and B-vitamin deficiencies have each been shown to negatively affect human reproductive outcomes, little is known about their joint effect.

objectiveWe sought to examine whether B-vitamin sufficiency protects against adverse effects of DDT on clinical pregnancy (CP) and subclinical early pregnancy loss (EPL).

designWe measured preconception concentrations of plasma B vitamins (vitamin B-6, vitamin B-12, and folate) and serum total DDT [sum of p,p' and o,p' isomers of DDT and 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene] in 291 nulligravid women from Anhui, China, who were studied in 1996-1998. The women were followed prospectively from the time they stopped contraception until CP (gestational age ≥42 d) or 12 mo (whichever occurred first). EPL was identified by using daily urinary human chorionic gonadotropin. The women were categorized according to B-vitamin status (deficiency compared with sufficiency) and DDT concentration (high compared with low).

resultsOf 291 study women, a total of 385 conceptions (31% of which ended in EPL) and 265 CPs occurred. Compared with women with adequate B-vitamins and low DDT, incidence rates of CP were reduced in women with B-vitamin deficiency and a high DDT concentration (P < 0.05 for all). Most notably, in women with sufficient vitamin B-12, DDT was not associated with the incidence of CP; in contrast, in women with vitamin B-12 deficiency, high DDT was associated with a lower incidence of CP (HR: 0.44; 95% CI: 0.23, 0.84); and the test for interaction was significant (P < 0.05). The odds of EPL decreased by 45% (95% CI: 21%, 62%) for each interquartile distance increase in folate in women with high DDT concentrations, and the test for interaction was significant (P = 0.006).

conclusionsOur results provide suggestive evidence that vitamin B-12 and folate sufficiency may help protect against adverse reproductive effects of DDT exposure. Additional studies are needed to confirm our findings.

Indexed as

Pregnancy OutcomeAdolescentAdultChinaDDTFemaleFolic AcidFollow-Up StudiesHumansPregnancyProspective StudiesReproductionVitamin B 12Vitamin B 6Vitamin B ComplexVitamin B DeficiencyDDTFolic AcidVitamin B 12Vitamin B 6Vitamin B ComplexB vitaminclinical pregnancyDDTearly pregnancy losspreconception

Identifiers

PMID25411282
PMCPMC4232015
OpenAlexW2097127495

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.