0000000000712307

AUTHOR

Dana Pieter

showing 4 related works from this author

Pioglitazone Reduces Secondary Brain Damage after Experimental Brain Trauma by PPAR-γ-Independent Mechanisms

2011

Inflammatory and ischemic processes contribute to the development of secondary brain damage after mechanical brain injury. Recent data suggest that thiazolidinediones (TZDs), a class of drugs approved for the treatment of non-insulin-dependent diabetes mellitus, effectively reduces inflammation and brain lesion by stimulation of the peroxisome proliferator-activated receptor-γ (PPAR-γ). The present study investigates the influence of the TZD pioglitazone and rosiglitazone on inflammation and secondary brain damage after experimental traumatic brain injury (TBI). A controlled cortical impact (CCI) injury was induced in male C57BL/6 mice to investigate following endpoints: (1) mRNA expression…

Malemedicine.medical_specialtyTraumatic brain injuryPeroxisome proliferator-activated receptorInflammationStimulationBrain damageMiceDiabetes mellitusInternal medicinemedicineAnimalsHypoglycemic Agentschemistry.chemical_classificationPioglitazonebusiness.industrymedicine.diseaseMice Inbred C57BLPPAR gammaDisease Models AnimalNeuroprotective AgentsEndocrinologychemistryBrain InjuriesBrain Damage ChronicThiazolidinedionesNeurology (clinical)medicine.symptombusinessRosiglitazonePioglitazonemedicine.drugJournal of Neurotrauma
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Single administration of tripeptide α-MSH(11-13) attenuates brain damage by reduced inflammation and apoptosis after experimental traumatic brain inj…

2013

Following traumatic brain injury (TBI) neuroinflammatory processes promote neuronal cell loss. Alpha-melanocyte-stimulating hormone (α-MSH) is a neuropeptide with immunomodulatory properties, which may offer neuroprotection. Due to short half-life and pigmentary side-effects of α-MSH, the C-terminal tripeptide α-MSH(11-13) may be an anti-inflammatory alternative. The present study investigated the mRNA concentrations of the precursor hormone proopiomelanocortin (POMC) and of melanocortin receptors 1 and 4 (MC1R/MC4R) in naive mice and 15 min, 6, 12, 24, and 48 h after controlled cortical impact (CCI). Regulation of POMC and MC4R expression did not change after trauma, while MC1R levels incr…

Central Nervous SystemMaleendocrine systemAnatomy and PhysiologyPro-OpiomelanocortinMouseScienceAnti-Inflammatory AgentsGene ExpressionApoptosisNeurological SystemImmunomodulationMiceModel OrganismsNeurorehabilitation and TraumaAnimalsMelanocyte-Stimulating HormonesBiologyCalcium-Binding ProteinsMicrofilament ProteinsQRBrainAnimal ModelsPeptide FragmentsMice Inbred C57BLHead InjuryNeurologyImmune SystemBrain InjuriesNervous System ComponentsCytokinesReceptor Melanocortin Type 4MedicineClinical ImmunologyMicrogliaInflammation MediatorsReceptor Melanocortin Type 1hormones hormone substitutes and hormone antagonistsResearch ArticleNervous System PhysiologyPLoS ONE
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Selection of endogenous control genes for normalization of gene expression analysis after experimental brain trauma in mice.

2008

Quantitative measurements of gene expression require correction for tissue sample size, RNA quantity, and reverse transcription efficiency. This can be achieved by normalization with control genes. The study was designed to identify candidates not altered after brain trauma. Male C57Bl/6 mice were anesthetized with isoflurane, and a pneumatic brain trauma was induced by controlled cortical impact (CCI) on the right parietal cortex. Brains were removed at 15 min, and 3, 6, 12 and 24 h after CCI and from naive animals (n = 6 each). Absolute copies of six control genes (beta-2-microglobin [B2M], cyclophilin A, beta-actin, hypoxanthine ribosyltransferase [HPRT], porphobilinogen deaminase [PBGD]…

MaleHypoxanthine PhosphoribosyltransferaseTime FactorsPorphobilinogen deaminaseNitric Oxide Synthase Type IIEndogenyNerve Tissue ProteinsBiologyCyclophilinsMiceGene expressionAnimalsRNA MessengerGeneBrain ChemistryReverse Transcriptase Polymerase Chain ReactionGene Expression ProfilingBrainMolecular biologyReverse transcriptaseActinsHousekeeping geneUp-RegulationGene expression profilingHydroxymethylbilane SynthaseMice Inbred C57BLDisease Models AnimalGene Expression RegulationHypoxanthine-guanine phosphoribosyltransferaseBrain InjuriesNeurology (clinical)beta 2-MicroglobulinGlyceraldehyde 3-Phosphate Dehydrogenase (NADP+)Journal of neurotrauma
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Anesthesia for Euthanasia Influences mRNA Expression in Healthy Mice and after Traumatic Brain Injury

2014

Tissue sampling for gene expression analysis is usually performed under general anesthesia. Anesthetics are known to modulate hemodynamics, receptor-mediated signaling cascades, and outcome parameters. The present study determined the influence of anesthetic paradigms typically used for euthanization and tissue sampling on cerebral mRNA expression in mice. Naïve mice and animals with acute traumatic brain injury induced by controlled cortical impact (CCI) were randomized to the following euthanasia protocols (n=10-11/group): no anesthesia (NA), 1 min of 4 vol% isoflurane in room air (ISO), 3 min of a combination of 5 mg/kg midazolam, 0.05 mg/kg fentanyl, and 0.5 mg/kg medetomidine intraperi…

business.industryAnesthetics GeneralChloral hydrateInterleukinOriginal ArticlesReal-Time Polymerase Chain ReactionMedetomidineDisease Models AnimalMiceIsofluraneEuthanasia AnimalAnesthesiaTight junction protein 1Animals LaboratoryBrain InjuriesAnestheticmedicineAnimalsTumor necrosis factor alphaNeurology (clinical)RNA Messengerbusinessmedicine.drugFOSB
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