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Updated: May 28, 2026
08:28
Analysis of Congenital Heart Defects in Mouse Embryos Using Qualitative and Quantitative Histological Methods
Published on: March 10, 2020
[Case-control study on influence factors of birth defects]
Xin-hong Xiu1, Li Yuan, Xiao-ming Wang
1Women Health Care Department of Qingdao Women and Children's Medical Center, Qingdao 266012, China. xiuxinh@126.com
Zhonghua Fu Chan Ke Za Zhi
|November 2, 2011
Summary
Maternal exposure to harmful chemicals, illness, and stress during pregnancy significantly increases birth defect risks. Supplementing microelements like calcium and iron during pregnancy acts as a protective factor against congenital malformations.
Area of Science:
- Reproductive Health
- Teratology
- Public Health Surveillance
Context:
- Birth defects represent a significant global health concern, necessitating identification of their etiological factors.
- A case-control study was conducted across 75 hospitals in China to investigate risk and protective factors for congenital malformations.
- Data were collected via standardized questionnaires from parents of fetuses diagnosed with birth defects and healthy controls.
Purpose:
- To determine the primary types of birth defects observed in the study population.
- To identify key maternal and paternal risk factors associated with the occurrence of birth defects.
- To explore potential protective elements during pregnancy that may reduce the incidence of congenital malformations.
Summary:
- Congenital heart disease, cleft lip/palate, and polydactyly were the most prevalent birth defects.
- Significant risk factors included maternal exposure to harmful chemicals, illness, medication use, psychological stress, poor nutrition (anemia, food selectivity), and paternal alcohol consumption.
- Maternal passive smoking, alcohol consumption, and pet ownership were also elevated in the birth defect group.
- Conversely, supplementation with microelements (calcium, iron) during pregnancy demonstrated a protective effect.
Impact:
- Findings highlight the critical importance of mitigating environmental and lifestyle-related risks during pregnancy.
- The study underscores the need for targeted public health interventions to reduce exposure to teratogenic agents.
- Recommendations include promoting prenatal care focused on nutrition and stress reduction to prevent birth defects.
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