Measurement of calcium concentrations in serum and a single hair shaft

Measurement of calcium concentrations in serum and a single hair shaft - Measurement of Ca concentrations in serum and a single hair shaft

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000004977

Enrollment

Registered

2011-01-30

Start date

2011-01-01

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

Healthy men and women who are younger than 40 years in age.

Interventions

1. Five men and five women who are healthy and do not take medicines regularly take 900 mg calcium (3ACa) per day in t i d for two weeks. A blood sample of 3 ml is taken on the first day, and the 14t

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Male and female who are healthy and do not take medicines regularly.

Exclusion criteria

Exclusion criteria: 1 Men and women who feel unhealthy in a daily life. 2 Men and women who are treated by medical doctors. 3 Men and women who have heart diseases.

Design outcomes

Primary

Measure	Time frame
The relationship of calcium concentrations between serum and hair shafts of healthy men and women who are younger than 40 years old.	—

Countries

Japan

Contacts

Public ContactHiroki Shima

The SHIMA Institution for Quantum MedicineMedicine Division of Clinical Trial

shima@siqm.org+81-6-6372-8755

Outcome results

None listed

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