Search results for "MESH: Cell Shape"

showing 3 items of 3 documents

The evolution of sperm morphometry in pheasants

2007

7 pages; International audience; Post-copulatory sexual selection is thought to be a potent evolutionary force driving the diversification of sperm shape and function across species. In birds, insemination and fertilization are separated in time and sperm storage increases the duration of sperm-female interaction and hence the opportunity for sperm competition and cryptic female choice. We performed a comparative study of 24 pheasant species (Phasianidae, Galliformes) to establish the relative importance of sperm competition and the duration of sperm storage for the evolution of sperm morphometry (i.e. size of different sperm traits). We found that sperm size traits were negatively associat…

0106 biological sciencesMale[ SDV.BDLR.RS ] Life Sciences [q-bio]/Reproductive Biology/Sexual reproductionsperm storage duration01 natural sciencessperm competitionSperm heteromorphism[ SDV.EE.IEO ] Life Sciences [q-bio]/Ecology environment/SymbiosisMESH: AnimalsMESH : FemaleMESH : EvolutionGalliformesMESH : Mating Preference Animalcomparative studypheasantsreproductive and urinary physiology0303 health sciencesLikelihood FunctionsMESH : Galliformes[SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE]MESH: SpermatozoaMESH: GalliformesAnatomyBiological EvolutionSpermatozoaMESH: Mating Preference AnimalFemale sperm storage[ SDV.BID.EVO ] Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE]Sexual selectionFemaleMESH : Likelihood Functionsendocrine systemMESH : MaleZoologyBiologyInsemination010603 evolutionary biologyPheasantfemale reproductive biology[SDV.BDLR.RS]Life Sciences [q-bio]/Reproductive Biology/Sexual reproductionsperm morphometry03 medical and health sciencesbiology.animalReproductive biologyMESH: EvolutionMESH : SpermatozoaMESH: Cell ShapeAnimalsSperm competitionCell ShapeEcology Evolution Behavior and Systematics030304 developmental biologyurogenital systemMESH : FertilizationMating Preference AnimalSpermMESH: MaleFertilizationMESH: FertilizationMESH: Likelihood FunctionsMESH : AnimalsMESH : Cell ShapeMESH: Female[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis
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Human Haemato-Endothelial Precursors: Cord Blood CD34+ Cells Produce Haemogenic Endothelium

2012

Embryologic and genetic evidence suggest a common origin of haematopoietic and endothelial lineages. In the murine embryo, recent studies indicate the presence of haemogenic endothelium and of a common haemato-endothelial precursor, the haemangioblast. Conversely, so far, little evidence supports the presence of haemogenic endothelium and haemangioblasts in later stages of development. Our studies indicate that human cord blood haematopoietic progenitors (CD34+45+144-), triggered by murine hepatocyte conditioned medium, differentiate into adherent proliferating endothelial precursors (CD144+CD105+CD146+CD31+CD45-) capable of functioning as haemogenic endothelium. These cells, proven to give…

CD31MouseCellular differentiationMESH: HematopoiesisAntigens CD34murine hepatocytesMESH: CadherinsMESH: HepatocytesMice0302 clinical medicineMolecular Cell BiologyHematopoiesiHepatocyteMESH: Animalsendothelial lineageMESH: Antigens CDCells Cultured0303 health sciencesMultidisciplinaryMESH: Culture Media ConditionedStem CellsMedicine (all)QMESH: Infant NewbornRMESH: HemangioblastsAntigens CD45Cell DifferentiationAnimal ModelsCadherinsFetal BloodCell biologyAdult Stem CellsHaematopoiesisPhenotypeconditioned mediummedicine.anatomical_structureCord bloodMedicineHemangioblastCD146Cellular TypesAnimals; Antigens CD; Antigens CD34; Antigens CD45; Cadherins; Cell Adhesion; Cell Differentiation; Cell Shape; Cells Cultured; Culture Media Conditioned; Fetal Blood; Hemangioblasts; Hematopoiesis; Hepatocytes; Humans; Immunophenotyping; Infant Newborn; Mice; Phenotype; Agricultural and Biological Sciences (all); Biochemistry Genetics and Molecular Biology (all); Medicine (all)Research ArticleHumanMESH: Cells Culturedendothelial lineage; murine hepatocytes; conditioned mediumMESH: Cell DifferentiationMESH: ImmunophenotypingEndotheliumHemangioblastsScienceMESH: Antigens CD45[SDV.BC]Life Sciences [q-bio]/Cellular BiologyBiologyMESH: PhenotypeImmunophenotypingMESH: Cell Adhesion03 medical and health sciencesModel OrganismsAntigens CDCell AdhesionmedicineAnimalsHumansMESH: Cell ShapeMESH: Fetal BloodProgenitor cellBiologyCell ShapeMESH: Mice030304 developmental biologyBiochemistry Genetics and Molecular Biology (all)MESH: HumansAnimalInfant NewbornMESH: Antigens CD34Hematopoietic Stem CellsHemangioblastHematopoiesisAgricultural and Biological Sciences (all)Culture Media ConditionedImmunologyHepatocytesCadherinLeukocyte Common Antigens030217 neurology & neurosurgeryDevelopmental BiologyPLoS ONE
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Effect of oxidative stress on UDP-glucuronosyltransferases in rat astrocytes.

2012

WOS:000309170300003; International audience; The present work reports data regarding effects of an induced oxidative stress on the mainly expressed isoforms of UDP-glucuronosyltransferases (UGTs) in the brain. UGT1A6 and UGT1A7 expression and enzymatic activities toward the 1-naphthol were analyzed in rat cultured astrocytes following the exposure for 48 h to redox-cycling xenobiotic compounds such as quinones and bipyridinium ions. The expression of NADPH:cytochrome P450 reductase and NAD(P)H:quinone oxidoreductase 1 (NQO1) was also investigated. Oxidative stress induced significant deleterious changes in astrocyte morphology, decreased cell viability and inhibited catalytic function of UG…

MESH : Oxidative StressMESH : RNA MessengerAntioxidantTranscription Geneticmedicine.medical_treatmentToxicologyNAD(P)H:quinone oxidoreductase 1MESH: GlucuronosyltransferaseAntioxidantsSubstrate SpecificityRats Sprague-Dawley0302 clinical medicineMESH: NADPH-Ferrihemoprotein ReductaseMESH: GlucuronidesNAD(P)H Dehydrogenase (Quinone)MESH : CatalysisMESH: AnimalsMESH : NAD(P)H Dehydrogenase (Quinone)GlucuronosyltransferaseCells Culturedchemistry.chemical_classificationMESH : Cell Survival0303 health sciencesMESH : Substrate SpecificityMESH : Animals NewbornCytochrome P450 reductaseGeneral MedicineMESH: Cell SurvivalMESH: Pyridinium CompoundsMESH : AntioxidantsMESH: Cells CulturedOxidative phosphorylationGene Expression Regulation EnzymologicMESH : QuinonesMESH : Glucuronides03 medical and health sciencesRNA MessengerCell ShapeNADPH-Ferrihemoprotein ReductaseMESH : Oxidation-ReductionMESH : Pyridinium CompoundsMESH: NaphtholsMESH : GlucuronosyltransferaseMESH: AntioxidantsMESH: CatalysischemistryOxidative stressAstrocytesReactive Oxygen Species030217 neurology & neurosurgeryMESH: Oxidation-ReductionTime Factors[ SDV.AEN ] Life Sciences [q-bio]/Food and NutritionMESH : Reactive Oxygen SpeciesNADPH:cytochrome P450 reductasePyridinium CompoundsNaphtholsMESH: Rats Sprague-DawleyProtein oxidationmedicine.disease_causeMESH: Animals NewbornMESH: NAD(P)H Dehydrogenase (Quinone)Protein CarbonylationMESH : OxidantsMESH: OxidantsMelatoninMESH: MelatoninMESH: Oxidative StressMESH : MelatoninMESH : RatsMESH: Gene Expression Regulation EnzymologicQuinonesMESH: Reactive Oxygen SpeciesOxidantsBiochemistryMESH : Protein CarbonylationOxidation-ReductionUDP-glucuronosyltransferaseMESH : Time FactorsMESH: Protein CarbonylationMESH: RatsCell SurvivalMESH : NaphtholsBiologyCatalysisMESH: QuinonesMESH : Gene Expression Regulation EnzymologicGlucuronidesMESH : Cells CulturedmedicineAnimalsMESH: Cell Shape030304 developmental biologyMESH: RNA MessengerReactive oxygen speciesMESH: Transcription GeneticMESH: Time FactorsMESH : AstrocytesMESH : Transcription GeneticNAD(P)H Dehydrogenase (Quinone)MESH : Rats Sprague-DawleyRatsMESH: AstrocytesAnimals NewbornMESH : NADPH-Ferrihemoprotein ReductaseMESH: Substrate SpecificityMESH : AnimalsNAD+ kinaseMESH : Cell Shape[SDV.AEN]Life Sciences [q-bio]/Food and NutritionOxidative stress
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