Pathological processes in the brain during ischaemia
Stroke to the present is one of the most common causes of death and permanent disability. Ischemic stroke (ischemic stroke called IS) is not only a dangerous disease because of its high mortality rate, but also because of a disability in patients who do survive, which represents approximately 76% of cases. It is a heterogeneous disease entity, which is a set of symptoms caused by focal ischemia or bleeding into the brain tissue caused by a wide variety of reasons. There are two types of strokes: haemorrhagic and ischemic. Haemorrhagic strokes accountfor 20% of all strokes, the other 80% are ischemic strokes. Stroke is a systemic disease, mainly resulting from vascular pathology. It plays a huge role in atherosclerosis and the mechanisms involved. The disease process affects the whole of the body, not just the cerebral vessels. From the point of view of pathological, ischemic stroke is the rapidly developing neurodegenerative process that leads to cell death. This disease is beyond the vascular damage, induces cell-molecular immune response to central nervous system and the vascular system, aimed at the development of the inflammatory response. The activated cells of the brain and vascular cells are involved in the synthesis of various molecules, among others. cytokines, chemokines, adhesion molecules and inflammatory enzymes. Continues to grow numerous reports confirming the importance of inflammatory factors in the development of ischemic stroke. In this process, the blood-brain barrier plays an important role. At the cellular level it is the main line of microglia immune surveillance of the central nervous system, which is responsible for the induction of the inflammatory response in stroke. In stroke, a sudden change in the expression of cytokines proceeds, which reveal the neurodegenerative effects of inflammatory cytokines and anti-inflammatory cytokines neuroprotective effect. Processes occurring in the brain during ischemia are very complicated and is not involved in a number of factors.