Search results for "glia"

showing 10 items of 1274 documents

Reflexividad y narratividad en Ricardo Piglia: de Macedonio a Fitzgerald

2013

Resumen: Este articulo analiza algunos rasgos de la narrativa reciente del argentino Ricardo Piglia con relacion a las poeticas de Macedonio Fernandez y del estadounidense Francis Scott Fitzgerald. La primera parte trabaja la relacion conflictiva de Piglia con el llamado posmodernismo; la segunda parte explica el vinculo entre Piglia y Macedonio, a traves de la poetica de la autonomia de lo literario; la tercera parte aborda la relacion con Fitzgerald, por medio de un analisis de sus respectivas busquedas de formas narrativas, para concluir en una cuarta parte ciertos cambios dentro de la propia obra novelesca de Piglia. Palabras clave: Piglia, Fitzgerald, Macedonio, posmodernismo, narrativ…

Cultural StudiesLinguistics and LanguageHistoryLiterature and Literary TheorynarratividadLiteratura; Estudios CulturalesCommunicationPhilosophyNarrativityEstudios CulturalesPostmodernismPigliaLanguage and LinguisticsposmodernismoMetafictionPoeticsPiglia; Fitzgerald; Macedonio; posmodernismo; narratividad; metaficciónLiteraturaMacedonioHumanitiesFitzgeraldmetaficción
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Neuronal Bioenergetics and Acute Mitochondrial Dysfunction: A Clue to Understanding the Central Nervous System Side Effects of Efavirenz

2014

Background. Neurological pathogenesis is associated with mitochondrial dysfunction and differences in neuronal/glial handling of oxygen and glucose. The main side effects attributed to efavirenz involve the CNS, but the underlying mechanisms are unclear. Methods. Human cell lines and rat primary cultures of neurons and astrocytes were treated with clinically relevant efavirenz concentration. Results. Efavirenz alters mitochondrial respiration, enhances reactive oxygen species generation, undermines mitochondrial membrane potential, and reduces adenosine triphosphate (ATP) levels in a concentration-dependent fashion in both neurons and glial cells. However, it activates adenosine monophospha…

CyclopropanesCell SurvivalCell RespirationPharmacologyMitochondrionBiologymedicine.disease_causechemistry.chemical_compoundOxygen ConsumptionHIV-associated neurocognitive disordersSuperoxidesnitric oxideCell Line TumorneurotoxicitymedicineAnimalsHumansImmunology and AllergyGlycolysisRats WistarMembrane Potential MitochondrialNeuronsMembrane potentialDose-Response Relationship DrugNeurotoxicityHIVefavirenzmedicine.diseasecentral nervous systemAdenosineBenzoxazinesMitochondriaRatsmitochondriaInfectious Diseasesmedicine.anatomical_structurechemistrynervous systemAlkynesAstrocytesReverse Transcriptase InhibitorsNeurogliaEnergy MetabolismNeurogliaAdenosine triphosphateOxidative stressmedicine.drug
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Involvement of nitric oxide in the mitochondrial action of efavirenz: a differential effect on neurons and glial cells

2014

Abstract The anti-human immunodeficiency virus (HIV) drug efavirenz (EFV) alters mitochondrial function in cultured neurons and glial cells. Nitric oxide (NO) is a mediator of mitochondrial dysfunction associated with HIV central nervous system symptoms. We show that EFV promotes inducible nitric oxide synthase (iNOS) expression in cultured glial cells and generated NO undermines their mitochondrial function, as inhibition of NOS partially reverses this effect. EFV inhibits mitochondrial Complex I in both neurons and glia; however, when the latter cells are treated for longer periods, other mitochondrial complexes are also affected in accordance with the increased NO production. These findi…

CyclopropanesNNRTIEfavirenzAnti-HIV AgentsCentral nervous systemNitric Oxide Synthase Type IIMitochondrionBiologyNitric OxideNitric oxideCell Linechemistry.chemical_compoundMediatornitric oxidemedicineImmunology and AllergyHumansNeuronsNeurotoxicityelectron transport chainHIVefavirenzmedicine.diseasecentral nervous systemCell biologyBenzoxazinesMitochondriaNitric oxide synthasemitochondriaInfectious Diseasesmedicine.anatomical_structurechemistryAlkynesImmunologybiology.proteinNeurogliaNeuroglia
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Biosynthesis and maintenance of GSH in primary astrocyte cultures: role of L-cystine and ascorbate.

1995

Abstract We have studied the optimal conditions to maintain the astrocyte GSH levels under normal and oxidative stress conditions. The rate of GSH synthesis from l -methionine was statistically lower than from l -cystine or N -acetyl-cysteine in astrocytes treated with diethyl-maleate, which is substrate of GSH S-transferases. This is in accordance with the fact that cystathionase activity was not detectable. The transport of l -cystine mediated by the Na + -independent system Xc − is the limiting step in GSH synthesis in astrocytes. Incubation with tert-butyl hydroperoxide (t-booH) reduced GSH concentration in astrocytes. This reduction was ameliorated in part by the addition of ascorbate …

CystineAscorbic AcidBiologymedicine.disease_causechemistry.chemical_compoundMethionineBiosynthesismedicineAnimalsAmino AcidsRats WistarMolecular BiologyCells CulturedMethionineGeneral NeuroscienceOsmolar ConcentrationGlutathioneAscorbic acidGlutathioneRatsOxidative Stressmedicine.anatomical_structurechemistryBiochemistryAstrocytesNeurogliaCystineNeurology (clinical)Oxidative stressDevelopmental BiologyAstrocyteBrain research
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ORIGINI DELLE DISUGUAGLIANZE GLOBALI:UNA PROSPETTIVA ECOLOGICA PER L'ANALISI DELLE CAUSE DEI MOVIMENTI MIGRATORI

2010

DISUGUAGLIANZE GLOBALI FATTORI ECOLOGICI E EVOLUZIONE DELLE COMUNITA' STORIA DELLA TECNICASettore SPS/10 - Sociologia Dell'Ambiente E Del Territorio
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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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Modelli familiari. Limiti costituzionali ed interpretazione

2012

Il contributo analizza il modello familiare riconosciuto dalla Carta Costituzionale ed offre una interpretazione evolutiva degli artt. 2 e 29, che tiene conto del quadro normativo Europeo e della giurisprudenza della Corte Europea dei Diritti dell'Uomo, della Corte di Giustizia Europea, nonchè della Corte di Cassazione e della Corte Costituzionale italiane.

Diritto di famiglia Costituzione modelli familiariteoria dell'interpretazioneSettore IUS/02 - Diritto Privato Comparato
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O direito da familia num contexto pluralista: o caso de Moçambique

2011

L'articolo esamina il regime del diritto di famiglia nel contesto pluralista mozambicano

Diritto di famiglia pluralismo giuridico Mozambico
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Un altro precursore di Francesco Scaduto: Giuseppe Ingoglia

2011

Contributo destinato alla pubblicazione negli Atti del convegno su “Il contributo di Francesco Scaduto alla scienza giuridica” (Palermo, 18 -19 febbraio 2005) per i tipi della Cedam. SOMMARIO: 1. Premessa - 2. L’attività accademica – 3. Il metodo d’insegnamento - 4. Influenze sugli orientamenti enunciati dallo Scaduto. Conclusioni.

Diritto ecclesiasticolcsh:LawDiritto ecclesiastico Diritto Canonico Francesco Scaduto Regia Università degli Studi di Palermo Giuseppe IngogliaSettore IUS/11 - Diritto Canonico E Diritto Ecclesiasticolcsh:K
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Famiglia e diritto penale (evoluzione)

2022

Sez. I. Lineamenti generali: 1. Famiglia-bene/istituzione, famiglia-contesto/relazione. — 2. Accumulo semantico. — 3. Sostituzione di principi. — Sez. II. La famiglia nel codice Rocco: istituzione e oggetto di tutela penale: 4. Rilevanza penale della famiglia nel codice Rocco. — 5. Matrimonio e procreazione come fonti dell’istituzione familiare penalmente tutelata. — 6. Il modello della famiglia patriarcale: gerarchia, maschilismo, paternalismo. — 7. Segue: moralismo (sessuale) asimmetrico. — Sez. III. Il penale familiare si adegua alla Costituzione: 8. Cambio di paradigma: dalla famiglia-oggetto di tutela alla famiglia-contesto. — 9. Una lunga transizione. — 10. La demonumentalizzazione de…

Diritto penaleFamigliaDemonumentalizzazioneEvoluzioneSettore IUS/17 - Diritto Penale
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