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2003
DOI: 10.4049/jimmunol.171.9.4801
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In Vivo Impairment of Neutrophil Recruitment during Lentivirus Infection

Abstract: Evidence indicates that the lentivirus, HIV, infection affects neutrophil response to bacteria and bacterial products in vitro. We used a novel model of rapid onset immunosuppression following infection with a similar lentivirus, feline immunodeficiency virus (FIV), in cats to examine neutrophil function within the microvasculature in vivo and to determine the steps that are impaired in the neutrophil recruitment cascade. In uninfected cats and cats infected neonatally with FIV, the mesentery was exteriorized,… Show more

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Cited by 31 publications
(30 citation statements)
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“…[13][14][15] Adherent cells were counted during a 10 minute-period in a 100 µm segment of the vessel, with 3 to 5 microvessels being selected from each animal.…”
Section: Adherent Leukocytesmentioning
confidence: 99%
“…[13][14][15] Adherent cells were counted during a 10 minute-period in a 100 µm segment of the vessel, with 3 to 5 microvessels being selected from each animal.…”
Section: Adherent Leukocytesmentioning
confidence: 99%
“…We counted the number of rolling leukocytes as the number of white cells that passed a designated line perpendicular to the venular axis during a 10-min period. [24][25][26]28 We counted the number of adherent cells as the number of cells that remained stationary for Ͼ 30 seconds on a 100-m segment of the venular endothelium during a 10-min period. [24][25][26]28 We counted the number of migrated leukocytes as the number of cells accumulated at the connective tissue, adjacent to the chosen postcapillary venule, in a standard area of 5,000 m. [24][25][26] …”
Section: Intravital Microscopy Of the Mesenterymentioning
confidence: 99%
“…Entretanto, uma hiperativação e acúmulo leucocitário no tecido estão, geralmente, associados a uma maior liberação de citocinas inflamatórias, resultando em resposta imune pró-inflamatória exacerbada que, por sua vez, pode contribuir para uma lesão microvascular difusa e subseqüente destruição endotelial. 20,28 A microscopia intravital é uma técnica de observação in vivo da microcirculação, isto é, permite a observação em tempo real do fluxo sanguíneo em microvasos (arteríolas e vênulas com diâmetro menor que 100 µm), mudanças na permeabilidade vascular, e também permite a avaliação do comportamento leucocitário: rolamento, adesão ao endotélio e migração de leucócitos para o tecido perivascular diante de um processo inflamatório. 28 …”
Section: Priscila Aikawaunclassified
“…20,28 A microscopia intravital é uma técnica de observação in vivo da microcirculação, isto é, permite a observação em tempo real do fluxo sanguíneo em microvasos (arteríolas e vênulas com diâmetro menor que 100 µm), mudanças na permeabilidade vascular, e também permite a avaliação do comportamento leucocitário: rolamento, adesão ao endotélio e migração de leucócitos para o tecido perivascular diante de um processo inflamatório. 28 …”
Section: Priscila Aikawaunclassified
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