Review Article

Impact of Statins on Cognitive Deficits in Adult Male Rodents after Traumatic Brain Injury: A Systematic Review

Table 4

Characteristics of included studies.

StudyAnimal speciesInjury modelMain experimental groupsMethod/dose of
statin administration
Anesthetic agentTime of statin administrationTime of outcome measurementQuality score

Abrahamson et al., 2009 [24]Male
mice
CCI(1) TBI + vehicle ( = 5-6)
(2) TBI + simvastatin ( = 5-6)
Orally,
3 mg/kg/d
Isoflurane3 h after injury10–14 d after injury5

Chauhan and Gatto, 2011 [16]Male C57BL/6J miceCCI(1) TBI+ saline ( )
(2) TBI + pravastatin ( )
(3) TBI + lovastatin ( )
(4) TBI + simvastatin ( )
Orally,
2 mg/kg/d
for 8 weeks
Ketamineimmediately after injury7-8 weeks after injury3

Indraswari et al., 2012 [25]Male C57BL/6J miceCCI(1) TBI + saline ( )
(2) TBI + rosuvastatin ( )
Orally,
1 mg/kg/d
for 5 d
Isofluranewithin 1 h after injury31–34 d after injury8

Lu et al., 2004 [26]Male
Wistar rats
CCI(1) TBI + saline ( )
(2) TBI + atorvastatin ( )
Orally,
1 mg/kg/d
for 7 d
Chloral hydrate1 d after injury1, 4, 8, and 15 d after injury7

Lu et al., 2007 [13]Male
Wistar rats
CCI(1) TBI + saline ( )
(2) TBI + atorvastatin ( )
and
(1) TBI + saline ( )
(2) TBI + atorvastatin ( )
(3) TBI + simvastatin ( )
orally
1 mg/kg/d
for 14 d
Chloral hydrate1 d after injury11–15 and
31–35 d after injury
7

Wang et al., 2012 [27]Male
Wistar rats
FPI(1) TBI + control ( )
(2) TBI + atorvastatin ( )
Orally,
1 mg/kg/d
for 14 d
Chloral hydrate1 h after injury21–25 d after injury5

Wang et al., 2007 [28]Male C57Bl/6J miceCHI(1) TBI + vehicle ( = ?)
(2) TBI + simvastatin ( = ?)
(3) TBI + atorvastatin ( = ?)
Subcutaneous injection,
20 mg/kg/d
for 17 d
IsofluraneUnclear21–25 d after injury4

Wu et al., 2008 [10]Male
Wistar rats
CCI(1) TBI + saline ( )
(2) TBI + simvastatin ( )
Orally,
1 mg/kg/d
for 14 d
Chloral hydrate1 d after injury31–35 d after injury7

Jin et al., 2013 [29]Male
Wistar rats
FPI(1) TBI + saline ( )
(2) TBI + atorvastatin ( )
Orally,
1 mg/kg/d
for 14 d
Chloral hydrateWithin 1 h after injury21–25 d after injury4

Liu, 2009 [30]Male
Wistar rats
FPI(1) TBI + saline ( )
(2) TBI + simvastatin ( )
Orally,
20 mg/kg/d,
unclear treatment duration
Chloral hydrate1 d after injury21–25 d after injury5

Zhang et al., 2012 [31]Male
Wistar rats
FPI(1) TBI + saline ( )
(2) TBI + atorvastatin ( )
(3) TBI + simvastatin ( )
(4) TBI + rosuvastatin ( )
Orally,
atorvastatin/simvastatin:
2 mg/kg/d for 21 d,
rosuvastatin: 1 mg/kg/d
for 21 d
Chloral hydrateWithin 1 d after injury22–28 d after injury5

Note: CCI: controlled cortical impact; FPI: fluid percussion injury; CHI: closed head injury.