Impact of Intermittent Hypoxia on the Function of the Phagocytes

Taipei Veterans General Hospital, Taiwan40 enrolled

Overview

Patients with treatment-naive obstructive sleep apnea (OSA) who need continuous positive airway pressure (CPAP) therapy on clinical basis are included as well as healthy controls without OSA. 15 cc peripheral venous blood is drawn on the date of diagnosis of OSA and 3-6 months after CPAP therapy. Granulocytes are harvested and tested for its function, such as phagocytosis, reactive oxygen species (ROS) production and bacteria-killing ability.

Patients with treatment-naive obstructive sleep apnea (OSA) who need continuous positive airway pressure (CPAP) therapy on clinical basis are included. Healthy controls without OSA are enrolled, too. 15 cc peripheral venous blood is drawn on the date of diagnosis of OSA and 3-6 months after CPAP therapy (not given to controls). Granulocytes are harvested and tested for its function, such as phagocytosis, reactive oxygen species (ROS) production and bacteria-killing ability.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Obstructive Sleep Apnea of Adult

Eligibility

Sex: ALLMin age: 20 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: \<OSA group\> 1. Patients with treatment-naive obstructive sleep apnea (OSA) who need continuous positive airway pressure (CPAP) therapy on clinical basis 2. aged 20 years or older 3. Apnea-hypopnea index (AHI) at least 15/hour 4. Willing to participate this study \<Control group\> 1. Healthy controls without OSA 2. aged 20 years or older 3. AHI less than 5/hour Exclusion Criteria: \<OSA group\> 1. OSA patients who do not need continuous positive airway pressure (CPAP) therapy 2. OSA Patients have ever received CPAP or other treatment 3. aged less than 20 years 4. AHI at least 15/hour 5. Not willing to participate this study \<Control group\> 1\. Apnea-hypopnea index (AHI) equals to or more than 5/hour 2. aged less than 20 years 3. Not willing to participate this study

Locations (1)

Chest department, Taipei Veteran General Hospital

Taipei, Taiwan

RECRUITING

Outcomes

Primary Outcomes

Granuolocyte function

Granuolocyte function, such as such as phagocytosis, reactive oxygen species (ROS) production and bacteria-killing ability.

Time frame: On enrollment

Granuolocyte function

Granuolocyte function, such as such as phagocytosis, reactive oxygen species (ROS) production and bacteria-killing ability.

Time frame: 3-month

Granuolocyte function

Granuolocyte function, such as such as phagocytosis, reactive oxygen species (ROS)

Time frame: 6-month

Central Contacts

Kun-Ta Chou, M.D

CONTACT

+886922407055 ale1371@yahoo.com.tw

Data from ClinicalTrials.gov

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