The DNA Methylation of ARHGEF11 in Macrosomia

May 23, 2017 updated by: Jie Yan, Peking University First Hospital

Epigenetic Alteration of Rho Guanine Nucleotide Exchange Factor 11 (ARHGEF11) in Cord Blood Samples in Macrosomia Exposed to Intrauterine Hyperglycaemia

Background Macrosomia at birth is associated with subsequent susceptibility to obesity, abnormal glucose metabolism, hypertension and dyslipidaemia. Epigenetic reprogramming has been reported to be involved in the development of human diseases caused by suboptimal environmental or nutritional factors.

Objective The study was aiming to explore epigenetic mechanism influences on macrosomic infants exposed to intrauterine hyperglycemia.

Design The investigators performed a genome-wide analysis of DNA methylation in cord blood from macrosomic infants born to women with gestational diabetes or infants with normal birth weight born to normal glucose-tolerant women in order to identify genes related to foetal growth or early adipose tissue development. The candidate genes were then validated using SEQUENOM MassARRAY after bisulfite conversion.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

239

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

Singleton term pregnant women in Peking University First Hospital were recruited in this study.

Description

Inclusion Criteria:

-

Exclusion Criteria:

  • Pregnancies complicating with hypertensive disorders, pre-gestational diabetes, thyroid diseases, renal dysfunction were excluded.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
NGT-normal birth weight
NGT-macrosomia
GDM-normal birth weight
Diagnostic test: OGTT
75 g glucose tolerance test was provided to all pregnant women during 24-28 weeks.
GDM-macrosomia
Diagnostic test: OGTT
75 g glucose tolerance test was provided to all pregnant women during 24-28 weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
GDM was identified
Time Frame: 24-28 weeks
According to the International Association of Diabetes and Pregnancy Study Groups (IADPSG) criteria, gestational diabetes mellitus (GDM) was diagnosed when at least one cut point was reached in 2-hour 75-g OGTT test: a fasting plasma glucose (FPG) ≥ 5.1 mmol/L (92 mg/dL), a 1-hour ≥ 10.0 mmol/L (180 mg/dL) or a 2-hour ≥ 8.5 mmol/L (153 mg/dL). Participants were divided into two groups based on OGTT: Group normal glucose tolerant (NGT, n=132) and Group GDM (n=107).
24-28 weeks
Foetal macrosomia was identified
Time Frame: 40 weeks
After delivery, participants were further divided into four subgroups based on neonatal birth weight: normal birth weight (NBW) was defined as 2500g ≤ birth weight < 4000g, macrosomia (Mac) was defined as birth weight ≥ 4000g. Group NGT-NBW (n=83): normal glucose tolerant women with normal neonatal birth weight; Group NGT-Mac (n=49): normal glucose tolerant women with macrosomia; Group GDM-NBW (n=82): GDM women with normal neonatal birth weight; Group GDM-Mac (n=25): GDM women with macrosomia.
40 weeks
DNA methylation level in macrosomia
Time Frame: 40 weeks
Investigators performed a genome-wide analysis of DNA methylation in cord blood from macrosomic infants born to women with gestational diabetes or infants with normal birth weight born to normal glucose-tolerant women in order to identify genes related to foetal growth or early adipose tissue development. The candidate genes were then validated using SEQUENOM MassARRAY after bisulfite conversion.
40 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Peking University First Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 6, 2014

Primary Completion (Actual)

October 18, 2014

Study Completion (Actual)

October 18, 2014

Study Registration Dates

First Submitted

May 21, 2017

First Submitted That Met QC Criteria

May 23, 2017

First Posted (Actual)

May 24, 2017

Study Record Updates

Last Update Posted (Actual)

May 24, 2017

Last Update Submitted That Met QC Criteria

May 23, 2017

Last Verified

May 1, 2017

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2013572

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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