Drug

Dose (Administration method)

Effect of statins on intracranial aneurysm

Animals used

Methods for induction of aneurysm

1st Author

Journal

Simvastatin

25 mg/kg/day

1) Suppression of enlargement of intracranial aneurysm

male rats

High salt diet

Aoki T

Stroke.2008; 39:1276-1285.

(mixed in chow)

2) Suppression of further enlargement of pre-existing aneurysm

Ligation of left common carotid artery and posterior branches of bilateral renal arteries

Pitavastatin

5 mg/kg/day

1) Suppression of enlargement of aneurysm

male rats

High salt diet

Aoki T

Neurosurgery. 2009; 64:357-365

(mixed in chow)

2) Suppression of further enlargement of pre-existing aneurysm

Ligation of left common carotid artery and posterior branches of bilateral renal arteries

Pravastatin

50 or 100 mg/kg/day

Reduction of the ratio of aneurysms in advanced stage

female rats

Drinking water containing 1% NaCl

Kimura N

Brain research. 2010; 1322:144-152

(mixed in chow)

Ligation of right common carotid artery and posterior branches of bilateral renal arteries

Bilateral oophorectomy

Pravastatin

5 mg/kg/day (gavage)

Reduction of the ratio of aneurysm formation

female rats

Drinking water containing 1% NaCl

Tada Y

Stroke.2011; 42:2286-2293

25 or 50 mg/kg/day (gavage)

Increase of the ratio of aneurysm formation

Ligation of left common carotid artery and bilateral posterior renal arteries

Simvastatin

5 mg/kg/day (gavage)

Increase of the ratio of aneurysm formation

Bilateral oophorectomy