Scientists from a team of professor Małgorzata Kossut from Experimental Biology Institute of M. Nencki in Warsaw announced that using popular anti-inflammatory drugs may facilitate brain tissue regeneration after cerebral crisis in rats.
The aim of the researchers was to prove that popular anti-inflammatory drugs like ibuprofen may induce and accelerate reconstructive processes in rats’ cortical cortex after ischemic stroke.
A group of several dozens of rats was used for this aim. In the first phase of the experiment the researchers examined i.a. neuroplastic properties of the brain tissue in the animals. In order to do that they were cutting off single whiskers on the rats’ heads and observed how other hairs took representations of this area. Because of stimulation of brain areas adjacent with denervated ones by touching the rest of whiskers the process was quick. In this way it was proved that rats’ brain tissue has neuroplastic properties.
The next step was to cause ischemic stroke in animals’ brain tissue in the area representing whiskers. It turned out that in this case there is no taking up of functions by adjacent nerve centres – regeneration is impaired. Inflammation was diagnosed in the area of the focal point of ischaemia what is connected with escalation of Cyclooxygenase-2 (COX-2) level in cortex. The level of COX-2 was tested with the use of Western blot method. The scientists assumed that inflammation prevention may improve neuroplastic properties in rats’ brain tissue.
After causing the stroke ibuprofen was administered in a dose of 10mg/kg of body weight and 20mg/kg of body weight. The animals were given the drug one day before the stroke and every day after it for a month. A condition of rats’ cortex was examined. The results were compared with control groups.
It was proved that after administration of ibuprofen to the animals, along with the inflammation withdrawal the ability of brain tissue to regroup reappear. What is more, the effect escalates with the dosage increase. Ibuprofen administered before the stroke does not influence the neuroplasticity of healthy brain.
Research done on rats and the conclusions presented in numerous thesis allow to claim that the phenomena of neuroplasticity increase after using anti-inflammatory drugs may take place also in humans with ischaemic changes of the brain. It is worth to delve into the question in order to affirm this thesis and maybe in the future – to add ibuprofen to the basic treatment algorism of the patients with fresh ischemic stroke of the brain.
Written by: Julia Rudnicka, Anna Kozioł, Jerzy Bednarski
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Would you like to know more? Watch on MEDtube.net: Stroke Evaluation Simulation 1