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Spontaneous Aortic Lesions in Fallow Deer (Dama Dama L)

Spontana aortaskador hos douhjort (Dama dama L)

Acta Veterinaria Scandinavica volume 26, pages 549–562 (1985)Cite this article

Abstract

In 19 out of 22 aortas from fallow deer, 15 months to 5½ years, aortic lesions were found. Three types of lesions were observed, fatty streaks were seen in 2, fibrous plaques in 15 and fibrous plaques with complicated lesions (calcification and acid mucopolysaccharides) in 2 of the aortas. Elastic tissue degeneration of the inner two thirds of the tunica media was frequently found in the aorta of the animals > 3½–5½ years of age. There was no statistical evidence for a correlation between age and frequency (P ~ 0.10) but a trend towards age dependence was seen. The percentage of involved surface was found to significantly increase (0.05 > P > 0.01) with age. Lesions were found to start in the abdominal aorta in young animals and to extend cranially to the thoracic aorta with age. The percentage of involved surface in different affected regions, comprising all age groups were, in the posterior abdominal portion, 10.5 %, in the anterior abdominal portion, 4.3 % and in the posterior thoracic portion, 1.04 %. The influence of hemodynamic flow upon the localization of the aortic lesions, the endothelial cell population density and the endothelial nuclear patterns were discussed.

Sammanfattning

Hos 19 av 22 dovhjortar, 15 månader—5½ år gamla, påvisades skador i aorta. Tre olika typer av skador förelåg; stråk av fett i 2, fibrösa knutor i 15 och fibrösa knutor med komplicerande skador (förkalkning och sura mucopolysaccharider) i 2 aortor. Degeneration av elastisk vävnad, i de inre två tredjedelarna av tunica media, fanns frekvent i aorta från djur äldre än 3½ år. Det förelåg in get statistiskt säkerställt förhållande melian ålder och frekvens men däremot en tendens till åldersbetingelse. Procenten förändrad yta ökade signifikant (0,05 > P > 0,01) med stigande ålder. Förändringarna befanus börja i abdominala aorta hos unga djur och med stigande ålder utbredde de sig till den thorakala aortan.

Frekvensen inbegrip en yta i olika skadade delar, omfattande alla åldersgrupper var; bakre abdominala aortan 10,5 %, främre abdominala aortan 4,3 % och bakre thorakala delen av aorta 1,4 %. Flöde av hemodynamiskt påverkan vad avser lokalisationen av skadorna diskuteras liksom även tätheten av den endotheliala cellproduktionen och kärnornas positioner hos endothelcellarna.

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Authors and Affiliations

  1. Department of Pathology, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden

    Somlak Poungshompoo

  2. National Veterinary Institute, S-750 07, Uppsala, Sweden

    C. Rehbinder

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  1. Somlak Poungshompoo
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  2. C. Rehbinder
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Poungshompoo, S., Rehbinder, C. Spontaneous Aortic Lesions in Fallow Deer (Dama Dama L). Acta Vet Scand 26, 549–562 (1985). https://doi.org/10.1186/BF03546526

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Acta Veterinaria Scandinavica

ISSN: 1751-0147