Revista Colombia Médica
Universidad del Valle - Facultad de Salud
Vol. 44, No. 1, 2013, pp. 32-37
Bioline Code: rc13006
Full paper language: English
Document type: Research Article
Document available free of charge
Revista Colombia Médica, Vol. 44, No. 1, 2013, pp. 32-37
© Copyright 2013 - Columbia Médica
Regulatory effect of Dimethyl Sulfoxide (DMSO) on astrocytic reactivity in a murine model of cerebral infarction by arterial embolization|
Lapuente Chala, Catalina; Valbuena, Rengifo; Augusto, Carlos; Rodríguez, Ávila; Fidel, Marco & Céspedes Rubio, Angel
Introduction: The pathophysiology of cerebral ischemia is essential for early diagnosis, neurologic recovery, the
early onset of drug treatment and the prognosis of ischemic events. Experimental models of cerebral ischemia
can be used to evaluate the cellular response phenomena and possible neurological protection by drugs.
Objective: To characterize the cellular changes in the neuronal population and astrocytic response by the effect
of Dimethyl Sulfoxide (DMSO) on a model of ischemia caused by cerebral embolism.
Methods: Twenty Wistar rats were divided into four groups (n = 5). The infarct was induced with α-bovine
thrombin (40 NIH/Unit.). The treated group received 90 mg (100 ul) of DMSO in saline (1:1 v/v) intraperitoneally
for 5 days; ischemic controls received only NaCl (placebo) and two non-ischemic groups (simulated)
received NaCl and DMSO respectively. We evaluated the neuronal (anti-NeuN) and astrocytic immune-reactivity
(anti-GFAP). The results were analyzed by densitometry (NIH Image J-Fiji 1.45 software) and analysis of
variance (ANOVA) with the Graph pad software (Prism 5).
Results: Cerebral embolism induced reproducible and reliable lesions in the cortex and hippocampus (CA1).,
similar to those of focal models. DMSO did not reverse the loss of post-ischemia neuronal immune-reactivity,
but prevented the morphological damage of neurons, and significantly reduced astrocytic hyperactivity in the
somato-sensory cortex and CA1 (P <0.001).
Conclusions: The regulatory effect of DMSO on astrocyte hyperreactivity and neuronal-astroglial cytoarchitecture
, gives it potential neuroprotective properties for the treatment of thromboembolic cerebral ischemia
in the acute phase.
Brain cerebral ischemia, dimethyl sulfoxide (DMSO), immunohistochemistry, astrocytes, neuroglia gliosis.
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