Summary
A cerebral ischemia was produced by unilateral ligation of the common carotid artery in the neck of Mongolian gerbils (Meriones unguiculatus), which are frequently characterized by deficiencies in the circulus of Willis. Concentrations of glucose, lactate, pyruvate and glycogen were measured in the hemisphere on the side of occlusion and in the contralateral control hemisphere of animals sacrificed after 5, 15 and 30 min, as well as after 1, 3, 5 and 9 hrs of carotid clamping. Significant decrease of glucose, and increase in lactate and pyruvate concentration were found in the hemisphere ipsilateral to occlusion; the extent of the changes was proportional to the duration of the ischemia. After an initial fall, an increase in the glycogen content occurred in the later stages of ischemia. Glycogen, glucose, lactate and pyruvate were determined also at 1, 5, 20 hrs and 1 week intervals following release of an occlusion lasting for 1 hr. Return to normal values of glucose and pyruvate was seen at 1 hr after release. The lactate and glycogen levels were significantly raised on the occluded side after 20 hrs release. An increased level of glycogen was observed as long as 1 week after a 1-hr carotid occulusion.
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Mršulja, B.B., Mršulja, B.J., Ito, U. et al. Experimental cerebral ischemia in Mongolian gerbils. Acta Neuropathol 33, 91–103 (1975). https://doi.org/10.1007/BF00687536
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DOI: https://doi.org/10.1007/BF00687536