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Diminished neuronal...
Diminished neuronal damage in the rat brain by late treatment with the antipyretic drug dipyrone or cooling following cerebral ischemia
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- Coimbra, Cicero (author)
- Lund University,Escola Paulista de Medicina
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- Boris-Möller, Fredrik (author)
- Lund University,Lunds universitet,Neurokirurgi,Sektion IV,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Neurosurgery,Section IV,Department of Clinical Sciences, Lund,Faculty of Medicine,Skåne University Hospital
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- Drake, Mikael (author)
- Skåne University Hospital
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- Wieloch, Tadeusz (author)
- Lund University,Lunds universitet,Neurokirurgi,Sektion IV,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Neurosurgery,Section IV,Department of Clinical Sciences, Lund,Faculty of Medicine,Skåne University Hospital
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(creator_code:org_t)
- Springer Science and Business Media LLC, 1996
- 1996
- English.
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In: Acta Neuropathologica. - : Springer Science and Business Media LLC. - 0001-6322 .- 1432-0533. ; 92:5, s. 447-453
- Related links:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Subject headings
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- It has been shown that changes in body core temperature several hours after a transient ischemic insult affect neuronal survival. We report that body core temperature in normal rats fluctuates over a 24-h period, while in rats subjected to 10 min transient ischemia induced by occlusion of the common carotid arteries in combination with hypotension, body temperature persistently increases to above 38.5°C from 21 to 63 h following recirculation. The antipyretic drug dipyrone administered from 12 to 72 h recovery depresses body temperature to normothermic values and markedly diminishes neuronal damage in the neocortex and hippocampus when evaluated at 7 days of survival. Cooling the animals down to normothermic levels provided similar protection to that obtained with dipyrone treatment. These results suggest that hyperthermia occurring late during reperfusion aggravates delayed neuronal damage and can be effectively prevented by antipyretic drugs. The data imply that: (1) temperature-dependent processes occurring late during recovery are involved in delayed neuronal death, (2) inflammation may be an important factor in delayed neuronal death, (3) prostanoids and interleukins may contribute to this process (4) postischemic prolonged (days) temperature control is required for proper evaluation of drug therapy in brain ischemia models, and (5) fever in patients suffering brain ischemia should be impeded.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
Keyword
- Antipyretic drugs
- Brain ischemia
- Delayed hyperthermia
- Delayed neuronal death
- Inflammation
Publication and Content Type
- art (subject category)
- ref (subject category)
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