Statins in Cerebral Blood Flow and Neuronal Activity--A Pilot Study

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

18 participants

Study Classification

OBSERVATIONAL

Study Start Date

2007-04-30

Study Completion Date

2010-09-30

Brief Summary

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Specific Aim: Demonstrate that statins have an effect on cerebral blood flow and neuronal activity

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Detailed Description

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A number of recent of recent studies suggests that statins, typically used to lower blood cholesterol have an effect on the brain. Patients treated with statins may have increased blood flow in the brain resulting in increased activity of the brain's neurons. The neuronal system is linked to memory. Brain magnetic resonance imaging (MRI) with magnetic resonance spectroscopy (MRS) and magnetic resonance perfusion (MRP) will be used to assess changes in neuronal activity in patients receiving statins vs. patients not receiving statins.

This is a single-site non-randomized pilot study. The study will include twenty (20), healthy consenting patients between the ages of 45 and 65 who are candidates for statin therapy as determined by their cardiologist(s). Two imaging visits will be required, one magnetic resonance imaging with Magnetic Resonance Spectroscopy and Magnetic Resonance Perfusion at baseline and one magnetic resonance imaging with magnetic resonance Spectroscopy and Magnetic Resonance Perfusion three months later as described.

Patients will have selected their course of clinical treatment prior to recruitment. Ten patients will have elected to start statin therapy with Lipitor and ten patients will have elected to initially lower their cholesterol levels with diet, independent of their participation in the study.

Participants on the "statin arm" will receive a dose of 20 mg per day of Lipitor and will receive a baseline brain Magnetic Resonance Imaging with Magnetic Resonance Spectroscopy and Magnetic Resonance Perfusion prior to receiving Lipitor and follow-up brain Magnetic Resonance Imaging with Magnetic Resonance Spectroscopy and Magnetic Resonance Perfusion three months after beginning Lipitor.

Participants on the "diet arm" will receive a baseline brain magnetic resonance imaging with Magnetic Resonance Spectroscopy and Magnetic Resonance Perfusion at the beginning of the study and follow-up brain magnetic resonance imaging with magnetic resonance spectroscopy and magnetic resonance perfusion three months later.

Conditions

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Alzheimer's Disease

Study Design

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Observational Model Type

OTHER

Study Time Perspective

PROSPECTIVE

Study Groups

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Diet: MRI/MR Spectroscopy/MR Perfusion

Healthy candidates for statin therapy to lower cholesterol pre-electing to lower cholesterol by diet for three months. Candidates in this arm have pre-elected to lower cholesterol by diet as described under the care of their treating physicians. Candidates will have 1 (one) brain MRI / MR spectroscopy/MR resonance perfusion scan at baseline and 1 (one) brain MRI / MR spectroscopy/MR resonance perfusion scan at 3 (three) months.

No interventions assigned to this group

Statin: MRI/MR Spectroscopy/MR Perfusion

Healthy candidates for statin therapy pre-electing to lower their cholesterol using atorvastatin (Lipitor) 20 mg per day as prescribed by their treating physician per standard of care. There are no research-related interventions for this group. Candidates will have 1 (one) brain MRI / MR spectroscopy/MR resonance perfusion scan at baseline and 1 brain MRI / MR spectroscopy/MR resonance perfusion scan at 3 months.

MRI, MR Spectroscopy, MR Perfusion

Intervention Type DEVICE

One brain MRI/MR Spectroscopy/MR Perfusion at baseline and one brain MR/MR Spectroscopy/MR Perfusion at 3 months.

Interventions

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MRI, MR Spectroscopy, MR Perfusion

One brain MRI/MR Spectroscopy/MR Perfusion at baseline and one brain MR/MR Spectroscopy/MR Perfusion at 3 months.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Otherwise healthy adults, male or female
2. Age 45-65,
3. Prior to treatment with any statin at a moderate or high dose -

Exclusion Criteria

1. Previous cerebral vascular accident,
2. Traumatic brain injury,
3. Subarachnoid hemorrhage,
4. Vascular dementia,
5. Alzheimer's Disease A
6. Any other known vascular pathologies of the brain.
7. Patients taking and/or receiving other known cerebrovascular enhancing medication/herbs and/or treatment (examples: tPA, gingko, triple H therapy, stenting procedures, etc.)
8. Previous neurosurgery or intracranial procedures.
9. Contraindication to MRI (pacemaker, neurostimulator, other surgical implants or metals which would contraindicate MRI).

Minimum Eligible Age

45 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No