Search results for " Teleostei"

showing 3 items of 3 documents

Spontaneous cytotoxic activity of eosinophilic granule cells separated from the normal peritoneal cavity ofDicentrarchus labrax

2000

Abstract In this study the spontaneous in vitro cytotoxic activity to tumour cell lines, (K562), by unstimulated sea bass ( Dicentrarchus labrax ) leukocytes was examined by trypan blue exclusion test and lactate dehydrogenase release assay. A high anti-tumour cell line activity of resident peritoneal leukocytes was found at an effector to target ratio (E:T) of 25:1 after incubation for 2 h at 18° C. Rabbit and sheep erythrocytes were not lysed. A low activity was displayed by head kidney and spleen cell populations whereas blood leukocytes revealed no significant activity. The effect of E:T ratio on cytotoxicity as well as microscopy observations suggested that the cytotoxic reaction requi…

Cytotoxicity ImmunologicPathologymedicine.medical_specialtySettore BIO/05 - ZoologiaCell SeparationAquatic SciencePeritoneal cavitychemistry.chemical_compoundLactate dehydrogenaseCentrifugation Density GradientTumor Cells CulturedmedicineAnimalsHumansEnvironmental ChemistryCytotoxic T cellCytotoxicityPeritoneal CavitybiologyOsmolar ConcentrationGranule (cell biology)Dicentrarchus labrax Teleostei cytotoxicity peritoneal cavity eosinophilic granule cellGeneral MedicineCytotoxicity Tests Immunologicbiology.organism_classificationMolecular biologyEosinophilsmedicine.anatomical_structurechemistryCell cultureBassDicentrarchusRabbitsPercollFish & Shellfish Immunology
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Les Gonorynchiformes fossiles : distribution et diversité.

2007

8 pages; Longtemps placés dans les clupéiformes, les Gonorynchiformes ont rejoint les Ostariophysi au sein desquels ils représentent le groupe-frère des Otophysi. La monophylie du groupe est maintenant bien établie tant par les données morphologiques que moléculaires. De nos jours, quatre familles sont représentées par sept genres (dont cinq d'eau douce) et 35 espèces (dont 28 d'eau douce). Les Gonorynchiformes fossiles sont connus depuis le Crétacé basal (soit 145-140 millions d'années) jusqu'au Miocène basal (soit 23,5-20 millions d'années), et plusieurs taxons ont de grandes extensions temporelles. Ils sont représentés par environ 18 genres et 34 espèces. Avec moins de 50 localités fossi…

[SDV.BID.SPT] Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy[SDU.STU.PG] Sciences of the Universe [physics]/Earth Sciences/PaleontologyTeleosteiBiodiversityDistributionGonorynchiformesFossil recordPalaeogeography[ SDV.BID.SPT ] Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomyBiodiversity Distribution Fossil record Gonorynchiformes Palaeogeography Teleostei[ SDU.STU.PG ] Sciences of the Universe [physics]/Earth Sciences/Paleontology
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Introduzione di nuove metodologie per lo studio del benessere in acquacoltura. Valutazione degli effetti dello stress e della somministrazione di int…

welfarestreTeleosteiwelfare; stress; Teleostei
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