Healthy
Conditions
Brief summary
This study will enroll 150 healthy volunteers, and the grouping is as follows: group 20-39 (30 males and 30 females); group 40-59 (30 males and 30 females); and group 60-79 (15 males and 15 females). The sublingual microcirculation will be examined with the incident dark field video microscope (Cytocam,Braedius Battery Powered Transilluminator). The study aims to compare the differences of microcirculation among the three groups and between genders.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* Healthy volunteers aged from 20 to 79 years old * BMI ranged from 18.5 to 27 kg/m2
Exclusion criteria
* Systolic blood pressure \> 140 mm Hg, diastolic blood pressure \> 95 mm Hg, or systolic blood pressure \< 90 mm Hg at enrollment * Body temperature \> 37.5 ℃ or \< 35.5 ℃ at enrollment * had been diagnose with any one of the following diseases * hypertension * diabetes mellitus * peripheral arterial occlusive disease * coronary arterial disease * liver cirrhosis * chronic kidney disease * stroke * anemia * asthma * chronic bronchitis * any metabolic diseases * any hematologic disease * uncured cancer * chronic uncontrolled infection * other disease may limit daily activities * non-native speakers
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Total small vessel density of sublingual small vessels measured by Cytocam | Once at enrollment | Total small vessel density will be measured by Cytocam |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Perfused small vessel density of sublingual small vessels measured by Cytocam | Once at enrollment | Perfused small vessel density will be measured by Cytocam |
Countries
Taiwan