Interleukin-1 Receptor Antagonist Gene Polymorphism and Adverse Pregnancy Outcome in Turkish Women

The investigators hypothesized that the IL-1A (+4895), IL-1B (+3954), and IL-1RN gene polymorphisms may be associated with PLBW. Smoking has been well documented by numerous studies as a major environmental risk factor for periodontitis and adverse pregnancy outcomes. Therefore, the investigators only selected non-smoking individuals in this study as the smoking-related risk could obscure the polymorphism-related increase in risk for periodontitis and adverse pregnancy outcomes. This study aimed to determine the association between IL-1A (+4895), IL-1B (+3954), and IL-1RN polymorphisms with adverse pregnancy outcomes and periodontitis in a non-smoking Turkish population.

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Key information

Conditions

Periodontitis Mouth Diseases Periodontal Diseases Stomatognathic Diseases

Age range

18 year–35 year

Sex eligibility

Female

Study type

Observational

About this study

Pregnant women between 18-35 years of age with single gestation and with ≥20 on-crowded teeth excluding third molars were included in this study. Subjects were divided into normal birth (NB) and PLBW groups on the basis of their pregnancy outcome. Women who delivered an infant with a birth weight of more than 2500 g after 37 weeks of gestation were placed in the NB group. Women who delivered infants whose birth weight was below 2500 g or before 37 weeks of gestation were placed in the PLBW group. Current/past tobacco user, alcohol abuse, history of high-risk gestation, hypertension, gestational diabetes, any systemic disease and placenta previa were the exclusion criteria for this study. Maternal, obstetric, and demographic factors such as maternal age, maternal education, regular prenatal care, genitourinary tract infections during pregnancy, total number of births, previous PLBW, and antibiotic use during the pregnancy period were also recorded.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Subjects were divided into normal birth (NB) and PLBW groups on the basis of their pregnancy outcome. Women who delivered an infant with a birth weight of more than 2500 g after 37 weeks of gestation were placed in the NB group.

Exclusion criteria

Current/past tobacco user, alcohol abuse, history of high-risk gestation, hypertension, gestational diabetes, any systemic disease and placenta previa were the exclusion criteria for this study.

Treatment and study plan

Primary outcomes

Interleukin-1 receptor antagonist gene polymorphism and adverse pregnancy outcome in Turkish women

Time frame: 5 months

Sponsors and collaborators

Lead sponsor

Selcuk University

Other

Registry information

Acronym: IRAGPAAOITW

Important dates

Study start: 2004
Primary completion: 2004
Study completion: 2005
First posted: Mar 15, 2013
Registry last updated: Mar 15, 2013

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed