Search results for "recombinant human EPO"

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Brain erythropoietin fine-tunes a counterbalance between neurodifferentiation and microglia in the adult hippocampus

2021

In adult cornu ammonis hippocampi, erythropoietin (EPO) expression drives the differentiation of new neurons,independent of DNA synthesis, and increases dendritic spine density. This substantial brain hardwareupgrade is part of a regulatory circle: during motor-cognitive challenge, neurons experience ‘‘functional’’hypoxia, triggering neuronal EPO production, which in turn promotes improved performance. Here, weshow an unexpected involvement of resident microglia. During EPO upregulation and stimulated neurodifferentiation,either by functional or inspiratory hypoxia, microglia numbers decrease. Treating mice with recombinanthuman (rh)EPO or exposure to hypoxia recapitulates these changes and…

Dendritic spineQH301-705.5Mice TransgenicBiologyHippocampusGeneral Biochemistry Genetics and Molecular BiologyMice03 medical and health sciences0302 clinical medicineDownregulation and upregulationrecombinant human EPOhemic and lymphatic diseasesmedicineAnimalsBiology (General)Hypoxia BrainReceptorErythropoietin030304 developmental biology0303 health sciencesMicrogliahypoxiaPyramidal CellsNeurogenesisneurodifferentiationCell DifferentiationHypoxia (medical)CSF1Rneurogenesismedicine.anatomical_structurenervous systemErythropoietinApoptosisIL-34Microgliamedicine.symptomNeuroscience030217 neurology & neurosurgerymedicine.drug
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Neuroprotection by erythropoietin administration after experimental traumatic brain injury.

2007

A large body of evidence indicates that the hormone erythropoietin (EPO) exerts beneficial effects in the central nervous system (CNS). To date, EPO's effect has been assessed in several experimental models of brain and spinal cord injury. This study was conducted to validate whether treatment with recombinant human EPO (rHuEPO) would limit the extent of injury following experimental TBI. Experimental TBI was induced in rats by a cryogenic injury model. rHuEPO or placebo was injected intraperitoneally immediately after the injury and then every 8 h until 2 or 14 days. Forty-eight hours after injury brain water content, an indicator of brain edema, was measured with the wet-dry method and bl…

MaleTime FactorsBrain EdemaFunctional LateralityRats Sprague-Dawleychemistry.chemical_compoundTraumatic brain injuryMedicineAnalysis of Variance Animals Blood-Brain Barrier; drug effects Brain Edema; drug therapy/etiology Brain Infarction; drug therapy/etiology Brain Injuries; complications/drug therapy Disease Models; Animal Erythropoietin; administration /&/ dosage Evans Blue; diagnostic use Functional Laterality Humans Male Neurologic Examination Neuroprotective Agents; administration /&/ dosage Rats Rats; Sprague-Dawley Reaction Time; drug effects Recombinant Proteins Time Factorsadministration /&/ dosageSpinal cord injuryEvans BlueNeurologic ExaminationGeneral Neuroscienceexperimental models of brain and spinal cord injuryExtravasationNeuroprotectionRecombinant Proteinsmedicine.anatomical_structureNeuroprotective AgentsBlood-Brain BarrierAnesthesiadiagnostic usemedicine.drugEvans BlueBrain InfarctionTraumatic brain injuryCentral nervous systemrecombinant human EPO (rHuEPO)PlaceboNeuroprotectionReaction TimeAnimalsHumansMolecular BiologyErythropoietinAnalysis of VarianceNeuroscience (all)business.industryAnimaldrug therapy/etiologymedicine.diseaseRatsDisease Models AnimalchemistryErythropoietindrug effectsBrain InjuriesDisease Modelsrecombinant human EPO (rHuEPO); experimental models of brain and spinal cord injury; NeuroprotectionNeurology (clinical)Sprague-Dawleybusinesscomplications/drug therapyDevelopmental BiologyBrain research
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