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The Stress Responses of Fetuses and Infants Whose Mothers Smoked During Pregnancy

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified November 2007 by Hadassah Medical Organization.
Recruitment status was:  Recruiting
Hebrew University of Jerusalem
Information provided by:
Hadassah Medical Organization Identifier:
First received: November 25, 2007
Last updated: May 9, 2008
Last verified: November 2007

It is generally understood that smoking during pregnancy has deleterious effects on the developing fetus, although research on smoking during pregnancy has been limited in focus, with most studies focused on birth weight of newborns and children's behavioral disturbances. However, little is known about the neurobiological underpinnings of nicotine-related developmental deficits and even less is known about genetic and environmental factors that may exacerbate the risk for such deficits in some children. In this study, we propose to examine the relation between antenatal exposure to nicotine and infants' stress-responses before and after birth (2-days, 6-months) and its moderation of by family-based stressors and genes related to nicotine metabolism and stress responsivity.

We hypothesize that the risk imposed on infants by antenatal exposure to nicotine is moderated by genotype that influences functioning of the HPA axis, metabolism of nicotine, and stress-levels and parenting that influence the development of neural substrates (HPA axis) and infants' capacity to cope with stress. There is a growing consensus that Gene x Environmental (G x E) interplay likely mediated by epigenetic effects constitute one of the central mechanism by which complex disorders develop. Our proposal offers an exceptional paradigm to explore the association between genes, environment, and G x E interactions on the neural and behavior response of children to stressful challenges.

Effects of Smoking on Infant

Study Type: Observational
Study Design: Observational Model: Family-Based
Time Perspective: Prospective
Official Title: The Stress Responses of Fetuses and Infants Whose Mothers Smoked During Pregnancy: Genes, Hormones and Psychological Modulators

Resource links provided by NLM:

Further study details as provided by Hadassah Medical Organization:

Biospecimen Retention:   Samples With DNA
DNA samples + salivery cortisol

Estimated Enrollment: 200
Study Start Date: April 2008
Estimated Study Completion Date: December 2008
  Show Detailed Description


Ages Eligible for Study:   22 Years to 35 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Women who smoked during pregnancy

Inclusion Criteria:

  • Smokes at least 10 cigarettes a day
  • No abuse of alcohol or drugs
  • No chronic physical disability
  • 22-35 years of age
  • Living with partner
  • Speaks English, Hebrew, or Russian
  • Natural conception
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00563966

Contact: David Mankuta, MD 97226776484

Hadassah Medical Organization Recruiting
Jerusalem, Israel
Contact: David Mankuta, MD         
Sub-Investigator: Rachel Bachner, PhD         
Sponsors and Collaborators
Hadassah Medical Organization
Hebrew University of Jerusalem
Study Chair: Ebstein Richard, MD PhD Hebrew University Jerusalem Israel
  More Information

Responsible Party: David Mankuta, Hadassah Identifier: NCT00563966     History of Changes
Other Study ID Numbers: smokingmothers-HMO-CTIL
Study First Received: November 25, 2007
Last Updated: May 9, 2008

Keywords provided by Hadassah Medical Organization:
smoking pregnancy behaviour polymorphisms processed this record on September 21, 2017