J Korean Med Sci.  1994 Apr;9(2):123-134. 10.3346/jkms.1994.9.2.123.

Cerebral energy metabolism following ESWL brain injury model and effects of cerebral protective drugs

• Whang CJ
• Kwon Y

• KMID: 1422168
• DOI: http://doi.org/10.3346/jkms.1994.9.2.123

Abstract

The goal of this study was to introduce a new method inducing an experimental brain injury model using ESWL(Extracorporeal Shock Wave Lithotripsy) and to evaluate findings of localized lesions on 1H MR imaging and the response of cerebral energy metabolism using a 31P MR spectroscope to the ESWL brain injury in cats. This study also examined effects of cerebral protective drugs. 1) There were no statistically significant changes in pH at all measurement points. 2) In the trauma group, initial decrease of PCr/Pi was seen at 30 to 60 minutes with return to control levels by 2 hours after injury(P < 0.05), followed by a second decline at 4 hours which lasted until 8 hours after injury. 3) Significant recovery in PCr/Pi(P < 0.05) was observed in both the THAM and dexamethasone treated groups at all measurement points and in the mannitol treated group only temporary recovery at 30 and 60 minutes (P < 0.05). 4) High intensity signals were seen on 1H MR imaging in traumatized animals. This study demonstrated the immediate and persistent recovery of cerebral energy metabolism using THAM or dexamethasone and an immediate but transient effect with mannitol in traumatized animals.

MeSH Terms

Adenosine Triphosphate/metabolism
Animals
Brain/*drug effects/metabolism
Brain Injuries/etiology/metabolism/*prevention & control
Cats
Dexamethasone/*therapeutic use
*Disease Models, Animal
Energy Metabolism/*drug effects
Hydrogen-Ion Concentration
*Lithotripsy
Magnetic Resonance Spectroscopy
Phosphates/metabolism
Phosphocreatine/metabolism
Random Allocation
Tromethamine/*therapeutic use
Phosphates
Dexamethasone
Adenosine Triphosphate
Phosphocreatine
Tromethamine