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Genetic and environmental influences on the brain, the immunesystem and gene expression in bipolar twin pairs - a cross-sectional and longitudinal study

Genetic and environmental influences on the brain, the immunesystem and gene expression in bipolar twin pairs - a cross-sectional and longitudinal study - Brain, immune system, gene expression in BP twins

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON33914
Enrollment
420
Registered
2008-07-08
Start date
2010-01-18
Completion date
Unknown
Last updated
2024-05-13

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

Conditions

manic depressive disorder

Interventions

None listed

Sponsors

Universitair Medisch Centrum Utrecht
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: Study A+B (longitudinal): participation at baseline;Study A+B+C+D (cross-sectional) New bipolar twin pairs 1) Part of a monozygotic or dizygotic twin pair 2) At least one twin has a diagnoses (life time) of Bipolar Disorder I or Bipolar Disorder II (DSM-IV criteria) 3) No history of drug or alcohol dependency (DSM-IV criteria) for the last half year 4) No history of Cognitive Disorder (DSM-IV criteria) 5) No history of serious neurological illness 6) No severe medical illness 7) Age between 18 and 60 years;New healthy control twin pairs 1) Part of a monozygotic or dizygotic twin pair 2) No history of axis I psychiatric disorder (DSM-IV criteria), on the basis of a SCID interview (Modules A-G) 3) No history of axis II personality disorder (DSM-IV criteria), on the basis of SIDP-V 4) No first degree relative with a history of specific axis I psychiatric disorder (DSM-IV criteria), on the basis of a FIGS interview 5) No history of drug or alcohol dependency (DSM-IV criteria) for the last half year 6) No history of serious neurological illness 7) No severe medical illness 8) Age between 18 and 60 years;Siblings 1) full sibling of an included twin pair 2) No history of axis I psychiatric disorder (DSM-IV criteria), on the basis of a SCID interview (Modules A-G) 3) No history of axis II personality disorder (DSM-IV criteria), on the basis of SIDP-V 4) No history of drug or alcohol dependency (DSM-IV criteria) for the last half year 5) No history of serious neurological illness 6) No severe medical illness 7) Age between 18 and 60 years

Exclusion criteria

Exclusion criteria: Did not give written informed consent 2) Ferrous objects in or around the body (e.g. braces, glasses, pacemaker, metal fragments) 3) Drug or alcohol abuse over a period of six months prior to the experiment 4) History of closed-head injury 5) History of neurological illness or endocrinological dysfunction 6) Claustrophobia

Design outcomes

Primary

MeasureTime frame
Study A: Change in brain volume (sMRI) or gray/white matter density (Voxelbased morphometry) Study B: Change in immunology parameters Study C: Fractional anisotropy and magnetisation transfer ratio Study D: Genotype and gene expression data All studies: Baseline values or parameters which might intervene with the main study parameter (age, gender, years of education, symptoms, level of functioning, medication intake, life events)

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)