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Extracellular Matrix Remodeling of the Umbilical Cord and Placenta in Preeclampsia

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 July 2013 by Ayse Kirbas, Zekai Tahir Burak Maternity and Teaching Hospital.
Recruitment status was:  Recruiting
Turgut Ozal University
Information provided by (Responsible Party):
Ayse Kirbas, Zekai Tahir Burak Maternity and Teaching Hospital Identifier:
First received: August 26, 2013
Last updated: August 28, 2013
Last verified: July 2013

Preeclampsia affects 2% to 8% of all pregnancies and is a major cause of maternal morbidity an mortality worldwide.Althought the primary pathology leading to preeclampsia is remain not known, complex pathophysiologic pathways and mechanisms have been described.

New blood vessels evolve during angiogenesis and vasculogenesis, two physiological processes, that play a crucial role in embryogenesis and placentation. Structural alterations in the human umbilical cord, maternal spiral arteries can cause adverse fetal consequences.Pre-eclampsia is accompanied by an extensive remodelling of the ECM of the umbilical cord. Pre-eclamptic Wharton's jelly contains higher amounts of glycosaminoglycans in comparison to control tissue.

Matrixmetalloproteinases (MMPs) are a family of proteolytic enzymes that degrade various components of the extracellular matrix (ECM). A Disintegrin And Metalloproteinases (ADAMs) and ADAMs with Thrombospondin motifs (ADAMTS) are proteinases closely related to Matrix Metalloproteinases (MMPs). Dysregulation of ADAMs and ADAMTS expression have been reported in different types of pathologies such as cancer, osteoarthritis, neurodegenerative inflammation or asthma.

The role of ADAMTS in the pathomechanism of pre-eclampsia has not been studied until now. We therefore decided to compare the ADAMTS composition of the umbilical cord and placenta from newborns of mothers with pre-eclampsia with those with normal pregnancy.

Alterations of ECM in Umbilical Cord ECM in Preeclampisa
Alterations of ECM in Placenta in Preeclampisa

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Cross-Sectional

Resource links provided by NLM:

Further study details as provided by Ayse Kirbas, Zekai Tahir Burak Maternity and Teaching Hospital:

Primary Outcome Measures:
  • severe preclampsia [ Time Frame: 34 weeks ]

Biospecimen Retention:   Samples With DNA
umbilical cord placenta

Estimated Enrollment: 20
Study Start Date: July 2013
Estimated Study Completion Date: July 2014
Estimated Primary Completion Date: February 2014 (Final data collection date for primary outcome measure)

  Show Detailed Description


Ages Eligible for Study:   18 Years to 39 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
preeclamptic women

Inclusion Criteria:

Clinical diagnosis of preeclampsia (diagnosed per ACOG criteria)

Exclusion Criteria:

known chronic disease multipl pregnancies

Exclusion Criteria:

  Contacts and Locations
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Please refer to this study by its identifier: NCT01931891

Contact: ayse kirbas, md 533-646-9213

Zekai Tahir Burak Maternity Hospital Recruiting
Ankara, Turkey
Contact: nuri danisman, md    306-5000      
Principal Investigator: ayse kirbas, md         
Sponsors and Collaborators
Zekai Tahir Burak Women's Health Research and Education Hospital
Turgut Ozal University
Principal Investigator: ayse kirbas, md zekai tahir burak hospital
  More Information

Responsible Party: Ayse Kirbas, Zekai Tahir Burak Maternity and Teaching Hospital Identifier: NCT01931891     History of Changes
Other Study ID Numbers: ztb- wharton jelly
Study First Received: August 26, 2013
Last Updated: August 28, 2013

Keywords provided by Ayse Kirbas, Zekai Tahir Burak Maternity and Teaching Hospital:
preeclampsia, ADAMTS , wharton jelly, extracellüler matrix, placenta

Additional relevant MeSH terms:
Hypertension, Pregnancy-Induced
Pregnancy Complications processed this record on May 25, 2017