Nagasaki and Tokushima

The recruitment status of this study is unknown because the information has not been verified recently.
Verified December 2012 by University of Tokushima.
Recruitment status was  Recruiting
Information provided by (Responsible Party):
Naofumi Tamaki, University of Tokushima Identifier:
First received: November 28, 2012
Last updated: December 3, 2012
Last verified: December 2012
we analyzed the relationship between oxidative stress, immunoglobulin G antibody titers, cytokines, and periodontitis through community-based study held in the Goto city, Japan.


Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Cross-Sectional
Official Title: Oxidative Stress in Community-dwelling Adults

Further study details as provided by University of Tokushima:

Primary Outcome Measures:
  • oxidative stress and periodontitis [ Time Frame: participants will be followed by an expected average of 1 year. ] [ Designated as safety issue: Yes ]
    reactive oxygen metabolites were measured. immunoglobulin G antibodies were measured by enzyme-linked immunosorbent assay.

Estimated Enrollment: 2000
Study Start Date: May 2009
Estimated Study Completion Date: March 2015
Primary Completion Date: March 2012 (Final data collection date for primary outcome measure)
Sample collection
Oxidative stress, cytokine
oxidative stress


Ages Eligible for Study:   20 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
community sample

Inclusion Criteria:

more than 15 teeth

Exclusion Criteria:

less than 15 teeth

  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: NCT01742728

University of Nagasaki Recruiting
Nagasaki, Goto, Japan
Contact: Toshiyuki Saito    +81-(95)-819-7662      
Sponsors and Collaborators
University of Tokushima
  More Information

Additional Information:
Responsible Party: Naofumi Tamaki, oxidative stress and periodontitis, University of Tokushima Identifier: NCT01742728     History of Changes
Other Study ID Numbers: goto2012
Study First Received: November 28, 2012
Last Updated: December 3, 2012
Health Authority: Japan: Ministry of Education, Culture, Sports, Science and Technology

Keywords provided by University of Tokushima:
oxidative stress, antioxidant, periodontitis, serum immunoglobulin G
antibody titer

Additional relevant MeSH terms:
Mouth Diseases
Periodontal Diseases
Stomatognathic Diseases processed this record on November 30, 2015