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Leukocyte dynamics in health and disease: in vivo labelling of dividing leukocytes using deuterated water

Leukocyte dynamics in health and disease: in vivo labelling of dividing leukocytes using deuterated water - Leukocyte dynamics in health and disease

Status
Unknown
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON33161
Enrollment
60
Registered
2009-06-23
Start date
Unknown
Completion date
Unknown
Last updated
2024-05-06

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

Conditions

lymfopenie t.g.v. stamceltransplantatie lymphopenia

Interventions

None listed

Sponsors

Universitair Medisch Centrum Utrecht
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: a. healthy, 20-30 years of age, HIV-negative b. healthy, 60 years or older, HIV-negative c. healthy, 18 years or older, complete thymus removed at young age because of heart surgery d. stem cell transplantation patiënt, 18 years or older, treated for hematological malignancies with an autologous HSCT, HIV-negative e. 18 years or older, untreated HIV-1-infection

Exclusion criteria

Exclusion criteria: a, b, c. do not suffer from immunological disorders and show no obvious symptoms of infections d. do not suffer from graft-versus-host-disease or severe (viral) infections e. do not receive antiviral therapy

Design outcomes

Primary

MeasureTime frame
The main parameter of the study is the amount of deuterium (label) that the different leukocyte populations have incorporated in their DNA by cell division at a given time. For this purpose blood withdrawals are done both in the period during which participants drink 2H2O (uplabelling phase), and in the period after stopping with 2H2O intake (delabelling phase). Data obtained during uplabelling and delabelling phases can be interpreted by mathematical models that describe the dynamics of leukocyte populations.

Secondary

MeasureTime frame
n.a.

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)