Functional Connectivity in Mood Regulating Circuit In Bipolar Depression and Mania

• Status: Completed
• Trial end date: 2007-03-01
• Target enrollment: 0
• Participant gender: All

Summary

The purpose of this study is to find out what parts of the brain have increased or decreased activity with individuals who have bipolar disorder and how medicine changes this activity in bipolar subjects. Another purpose of this study is to compare data obtained from bipolar depressed subjects with data obtained from healthy subjects. In this study we will measure activity in different parts of the brain, while participants see pictures, using Magnetic Resonance Imaging (MRI) scan. We will do two MRI scans with each subject before and after treatment for eight weeks with a standard bipolar disorder medication called lithium.

• Phase: Phase 4
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: Indiana University School of Medicine
• Treatments: Lithium Carbonate

Criteria

Inclusion Criteria:

Inclusion criteria for Bipolar Subjects

• Ages 18-60 years and able to give voluntary informed consent.

• Satisfy criteria for Bipolar Depression using the Structured Clinical Interview for Diagnostic and Statistical Manual -4th edition (DSM-IV) (SCID-IV).

• Bipolar depressed subjects: 25-item Hamilton Depression Rating Scale (HDRS) score > 18.Young Mania Rating Score (YMRS)<10.

• Bipolar hypomanic/manic subjects will have a YMRS score>12 and a 25-item HDRS score<10.

• Bipolar Euthymic subjects will have YMRS score < 10 and HDRS score < 10 and would have been euthymic for > 14 days.

• Subjects will be drug and medication free and would have no significant history of medical or neurological illness.

• Satisfy criteria to undergo an MRI scan based on MRI screening questionnaire

• Able to be managed as outpatients for initial assessment and during treatment as ascertained by the following:

• Symptoms not worsening by more than 10 points on either the HDRS or the YMRS during the course of the study.

• No danger to self or others.

• No psychotic symptoms.

Inclusion criteria for Healthy Subjects:

• Ages 18-60 years and able to give voluntary informed consent.

• No history of psychiatric illness or substance abuse or dependence as assessed by SCID for non-patients (SCID-NP).

• No significant family history of psychiatric or neurological illness.

• Not currently taking any prescription or centrally acting medications.

• No serious medical or neurological illness as assessed by history, physical examination and laboratory examination including CBC and blood chemistry.

Exclusion Criteria:

Exclusion criteria for Bipolar Subjects

• Meeting DSM-IV criteria for schizophrenia, schizophreniform disorder, schizoaffective disorder, atypical psychosis, mental retardation, or organic mental (including organic mood) disorder.

• Use of neuroleptic past 2 weeks

• Use of antidepressants in the past 2 weeks. If on fluoxetine in the past then should not have been on this medication for 4 weeks.

• Use of mood stabilizers in the past 2 weeks

• Use of benzodiazepines in the past 2 weeks.

• Acutely suicidal or homicidal or requiring inpatient treatment.

• Meeting DSM-IV criteria for other substance dependence within the past year, except caffeine or nicotine. The criteria will be evaluated by interview and urinary toxicology screening initially and on test days.

• Use of alcohol in the past 1 week.

• No serious medical or neurological illness as assessed by physical examination and laboratory examination including complete blood count (CBC) and blood chemistry.

• Current pregnancy or breast feeding.

• Metallic implants.

• Previously known positive Human Immunodeficiency Virus (HIV) blood test as reported by the subject.

Exclusion criteria for Healthy Subjects:

• Under 18 years of age.

• Pregnant or breast feeding.