0000000000053867

AUTHOR

Melanie Brückner

showing 3 related works from this author

Systemic PaO2 oscillations cause mild brain injury in a pig model

2016

OBJECTIVE: Systemic PaO2 oscillations occur during cyclic recruitment and derecruitment of atelectasis in acute respiratory failure and might harm brain tissue integrity. DESIGN: Controlled animal study. SETTING: University research laboratory. SUBJECTS: Adult anesthetized pigs. INTERVENTIONS: Pigs were randomized to a control group (anesthesia and extracorporeal circulation for 20 hr with constant PaO2, n = 10) or an oscillation group (anesthesia and extracorporeal circulation for 20 hr with artificial PaO2 oscillations [3 cycles min⁻¹], n = 10). Five additional animals served as native group (n = 5). MEASUREMENTS AND MAIN RESULTS: Outcome following exposure to artificial PaO2 oscillations…

Pulmonary Atelectasismedicine.medical_specialtySwinemedicine.medical_treatment10208 Institute of NeuropathologyHippocampusInflammation610 Medicine & healthHippocampal formationReal-Time Polymerase Chain ReactionCritical Care and Intensive Care Medicinegamma-Aminobutyric acidRNA ComplementaryRandom Allocation03 medical and health sciencesExtracorporeal Membrane Oxygenation0302 clinical medicine030202 anesthesiologyNeurotransmitter receptorInternal medicinemedicineExtracorporeal membrane oxygenationAnimalsReceptoralpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acidgamma-Aminobutyric AcidRespiratory Distress Syndromebusiness.industryExtracorporeal circulationRespiration Artificialrespiratory tract diseasesEndocrinologyBrain Injuries570 Life sciences; biologyBlood Gas AnalysisInflammation Mediatorsmedicine.symptombusiness2706 Critical Care and Intensive Care Medicine030217 neurology & neurosurgerymedicine.drug
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High dose infusion of activated protein C (rhAPC) fails to improve neuronal damage and cognitive deficit after global cerebral ischemia in rats

2013

Abstract Purpose : Recent studies demonstrated anticoagulatory, antiinflammatory, antiapoptotic, and neuroprotective properties of activated protein C (APC) in rodent models of acute neurodegenerative diseases, suggesting APC as promising broad acting therapeutic agent. Unfortunately, continuous infusion of recombinant human APC (rhAPC) failed to improve brain damage following cardiac arrest in rats. The present study was designed to investigate the neuroprotective effect after global cerebral ischemia (GI) with an optimized infusion protocol. Methods : Rats were subjected to bilateral clip occlusion of the common carotid arteries (BCAO) and controlled hemorrhagic hypotension to 40 mmHg for…

IschemiaInflammationBrain damagePharmacologyNeuroprotectionBrain IschemiaRats Sprague-DawleyBrain ischemiamedicineAnimalsHumansCerebral perfusion pressureInfusions IntravenousCell Deathbusiness.industryGeneral NeuroscienceDrotrecogin alfaBrainmedicine.diseaseRecombinant ProteinsRatsAnesthesiamedicine.symptombusinessProtein CProtein Cmedicine.drugNeuroscience Letters
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Comparison of different quantification methods to determine hippocampal damage after cerebral ischemia

2014

Abstract Background Experimental stroke studies use multiple techniques to evaluate histopathological damage. Unfortunately, sensitivity and reproducibility of these techniques are poorly characterized despite pivotal influence on results. Method The present study compared several quantification methods to differentiate between two severities of global cerebral ischemia and reperfusion. Male Sprague-Dawley rats were randomized to moderate (10 min) or severe (14 min) ischemia by bilateral carotid occlusion (BCAO) with hemorrhagic hypotension. Neuronal cell count was determined in hippocampus at bregma −3.14 mm and −3.8 mm on day 3 and 28 post insult by counting neurons in the whole CA1 or in…

MalePathologymedicine.medical_specialtyTime FactorsIntracranial HypotensionIschemiaHippocampusCell CountNerve Tissue ProteinsBrain damageHippocampal formationSeverity of Illness IndexBrain IschemiaRats Sprague-DawleyBrain ischemiaRandom AllocationAnimalsMedicineColoring AgentsCA1 Region HippocampalStrokeFluorescent DyesNeuronsbiologyHistocytochemistrybusiness.industryGeneral NeuroscienceReproducibility of ResultsAntigens NuclearBregmaFluoresceinsmedicine.diseaseBenzoxazinesDisease Models Animalnervous systembiology.proteinmedicine.symptomNeuNbusinessIntracranial HemorrhagesJournal of Neuroscience Methods
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