Analysis of stress markers in biological samples

Analysis of stress markers in biological samples - Analysis of stress markers in biological samples

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000055969

Enrollment

Registered

2024-11-11

Start date

2024-07-14

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Stress response

Interventions

0 volt irradiation group. This is the 40-volt light irradiation group. This is the 45-volt irradiation group. This is the 50-volt irradiation group. This is the 55-volt irradiation group. This is the

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Those without subjective symptoms or serious heart disease

Exclusion criteria

Exclusion criteria: If you have a serious heart condition or are feeling unwell.

Design outcomes

Primary

Measure	Time frame
In this study, we will evaluate the stress response to thermal radiation (heat exposure). The radiation intensity will be 0, 40, 50, and 60, and the radiation time will be 30 minutes. The evaluation time is before exposure, after exposure, 30 minutes after exposure, and 3 hours after exposure. The main evaluation items are the anti-oxidant power and oxidation level in the blood, which are collected by fingertip blood collection, and the catecholamine and cortisol concentrations in the urine, which are calculated using the creatinine ratio.	—

Measure

Time frame

In this study, we will evaluate the stress response to thermal radiation (heat exposure). The radiation intensity will be 0, 40, 50, and 60, and the radiation time will be 30 minutes. The evaluation time is before exposure, after exposure, 30 minutes after exposure, and 3 hours after exposure. The main evaluation items are the anti-oxidant power and oxidation level in the blood, which are collected by fingertip blood collection, and the catecholamine and cortisol concentrations in the urine, which are calculated using the creatinine ratio.

—

Secondary

Measure	Time frame
Evaluates skin temperature increases.	—

Countries

Japan

Contacts

Public ContactAkiko Matsumoto

Saga University Department of Social and Environmental Medicine, Faculty of Medicine,

matsumoa@cc.saga-u.ac.jp0952-34-2289

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026