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NADPH Oxidase Polymorphisms in Obstructive Sleep Apnea Syndrome (OSAS)

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 January 2010 by Sociedad Española de Neumología y Cirugía Torácica.
Recruitment status was:  Recruiting
Spanish Research Center for Respiratory Diseases
Information provided by:
Sociedad Española de Neumología y Cirugía Torácica Identifier:
First received: June 10, 2010
Last updated: NA
Last verified: January 2010
History: No changes posted
Obstructive Sleep Apnea (OSA) is associated with increased oxidative stress. The major sources of Reactive Oxygen Species (ROS) in the vasculature are the NADPH oxidases. Several polymorphisms related to NADPH oxidase expression or NADPH oxidase activity has been identified. The investigators are going to compare the distribution of the allelic frequencies of A-930G and C242T polymorphisms and their possible relationship with the levels of 8-isoprostanes as a marker of oxidative stress in patients with OSA and in a control group without OSA.

Sleep Apnea Syndrome Oxidative Stress Single Nucleotide Polymorphism

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Cross-Sectional
Official Title: NADPH Oxidase p22phox Polymorphisms and Oxidative Stress in Patients With Obstructive Sleep Apnea

Resource links provided by NLM:

Further study details as provided by Sociedad Española de Neumología y Cirugía Torácica:

Detailed Description:
DESIGN: CASE-CONTROL STUDY METHODS: We are going to determine the A-930G and C242T p22phox genotypes in patients with OSA and healthy subjects recruited from sleep unit of Son Dureta University Hospital, (Palma de Mallorca, Spain). 8-Isoprostane is going to be measured as an oxidative stress marker with an 8-isoprostane EIA kit (Cayman Chemicals Company, USA) in plasma samples.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
patients with OSAS defined by an apnea hypopnea index (AHI)>10 h-1 will be included in the study along with control subjects without OSAS. Participants were consequently studied at the sleep unit of Hospital Universitario Son Dureta, (Palma de Mallorca, Spain).

Inclusion Criteria:Polyysomnografic study with Apnoea/Hypoapnoea Index higher to 10 in patients and lower in controls.

Exclusion Criteria:

  • chronic obstructive pulmonary disease, liver cirrhosis, thyroid dysfunction, rheumatoid arthritis, chronic renal failure and/or psychiatric disorders.
  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: NCT01141829

Contact: Mónica de La Peña, MD 0034971175112

Hospital Universitario Son Dureta Recruiting
Palma de Mallorca, Baleares, Spain, 07014
Contact: Javier Piérola, Biologist    0034666149639   
Principal Investigator: Javier Piérola, Biologist         
Sponsors and Collaborators
Sociedad Española de Neumología y Cirugía Torácica
Spanish Research Center for Respiratory Diseases
  More Information

Responsible Party: Javier Piérola Lopetegui, Hospital Universitario Son Dureta Identifier: NCT01141829     History of Changes
Other Study ID Numbers: NADPHPM2010
Study First Received: June 10, 2010
Last Updated: June 10, 2010

Keywords provided by Sociedad Española de Neumología y Cirugía Torácica:
NADPH oxidase

Additional relevant MeSH terms:
Sleep Apnea Syndromes
Sleep Apnea, Obstructive
Pathologic Processes
Respiration Disorders
Respiratory Tract Diseases
Signs and Symptoms, Respiratory
Signs and Symptoms
Sleep Disorders, Intrinsic
Sleep Wake Disorders
Nervous System Diseases processed this record on September 21, 2017