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Published on: November 20, 2015
Mechanisms of risk in preterm low-birthweight infants
C E Williams1, E S Davenport, J A Sterne
1Department of Paediatric Dentistry, St Bartholomew's and the Royal London Hospital, London, England, United Kingdom.
Insights
Periodontal diseases share risk factors with preterm low birth weight infants. While not causal, inflammatory mediators link these conditions, prompting further research into contributing factors and probabilities.
Area of Science:
- Oral health
- Maternal-fetal medicine
- Public health
Background:
- Periodontal diseases and preterm low birth weight share common risk factors such as age, socioeconomic status, and smoking.
- Current research indicates an association, not a causal link, between periodontal diseases and preterm low birth weight.
- Inflammatory mediators involved in periodontal diseases may play a role in initiating labor.
Purpose of the Study:
- To investigate the association between periodontal diseases and preterm low birth weight.
- To explore potential biological mechanisms linking these conditions.
- To identify and characterize risk factors for preterm low birth weight.
Main Methods:
- Review of existing studies on risk factors for periodontal diseases and preterm low birth weight.
- Analysis of inflammatory mediators involved in periodontal disease and labor initiation.
- Ongoing global studies to determine probabilities and causal relationships.
Main Results:
- Established association between periodontal diseases and preterm low birth weight, with shared risk factors identified.
- Plausible biological mechanisms involving inflammatory mediators suggest a potential link.
- Further research is needed to establish causality and quantify risk.
Conclusions:
- Periodontal diseases and preterm low birth weight share risk factors and plausible biological mechanisms.
- Future research should focus on characterizing predisposing factors and their probabilities.
- Intervention studies and detailed mechanistic examinations are crucial for understanding maternal infection effects.
Abstract:
The periodontal diseases share many common risk factors with preterm low birth weight. Examples are, age, socioeconomic status and smoking (Fig. 5). Studies to date have only shown an association between the two conditions, and this does not indicate a causal relationship. However, since the inflammatory mediators that occur in the periodontal diseases, also play an important part in the initiation of labor, there are plausible biological mechanisms that could link the two conditions. The challenge for the future is to characterize the nature of the factors that predispose a mother to give birth prematurely to infants less than 2500 g and to assign relative probabilities to each. Studies are taking place in many parts of the world to determine the probability of a preterm low-birth-weight outcome, the interdependence of the factors that contribute to a birth event and possible casual relationships between these factors. Further information about the details of the effects of maternal infection will come from intervention studies, animal studies and more detailed examination of the mechanisms.
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