White cells in the blood of Apennine brown bears: An ultrastructural study
White cells of peripheral blood are important in the reaction of the body to pathogens. Their morphology in the brown bear (Ursus arctos) has received little detailed attention. In this study, white cells were separated from 84-ml blood samples drawn from the jugular vein of six captive and three wi...
Published in: | Journal of Mammalogy |
---|---|
Main Authors: | , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
1996
|
Subjects: | |
Online Access: | https://hdl.handle.net/11585/903349 https://doi.org/10.2307/1382681 |
id |
ftunibolognairis:oai:cris.unibo.it:11585/903349 |
---|---|
record_format |
openpolar |
spelling |
ftunibolognairis:oai:cris.unibo.it:11585/903349 2024-05-19T07:49:46+00:00 White cells in the blood of Apennine brown bears: An ultrastructural study Musiani M. Gentile L. Valentini M. Roth H. U. Musiani P. Musiani M. Gentile L. Valentini M. Roth H.U. Musiani P. 1996 ELETTRONICO https://hdl.handle.net/11585/903349 https://doi.org/10.2307/1382681 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:A1996VD37300015 volume:77 issue:3 firstpage:761 lastpage:767 numberofpages:7 journal:JOURNAL OF MAMMALOGY https://hdl.handle.net/11585/903349 doi:10.2307/1382681 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0029862334 brown bear Italy lipid bodie ultrastructure Ursus arcto white blood cells info:eu-repo/semantics/article 1996 ftunibolognairis https://doi.org/10.2307/1382681 2024-04-26T00:22:37Z White cells of peripheral blood are important in the reaction of the body to pathogens. Their morphology in the brown bear (Ursus arctos) has received little detailed attention. In this study, white cells were separated from 84-ml blood samples drawn from the jugular vein of six captive and three wild-caught bears (six Apennine brown bears from the Italian population, three of undetermined origin). As in most mammals, light and electron microscopy showed the presence of neutrophils, eosinophils, basophils, lymphocytes (some with natural killer features), and monocyte- macrophages. The differential count showed a slightly higher percentage of eosinophils than those observed in the mouse (Mus musculus) and rat (Rattus norvegicus), and in humans. Eosinophils displayed granules containing thinner and more stretched crystalloids than in the cat (Felis silvestris), mouse, and human. Both neutrophils and eosinophils contained numerous nonmembrane-bound inclusions in the cytoplasm that contained lipids (lipid bodies). The number of lipid bodies increased after incubation in 1.0 μM oleic acid. These findings suggest that in the brown bear, peripheral white blood cells also are involved in lipid metabolism as agents of transport and storage. Article in Journal/Newspaper Ursus arctos IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) Journal of Mammalogy 77 3 761 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
brown bear Italy lipid bodie ultrastructure Ursus arcto white blood cells |
spellingShingle |
brown bear Italy lipid bodie ultrastructure Ursus arcto white blood cells Musiani M. Gentile L. Valentini M. Roth H. U. Musiani P. White cells in the blood of Apennine brown bears: An ultrastructural study |
topic_facet |
brown bear Italy lipid bodie ultrastructure Ursus arcto white blood cells |
description |
White cells of peripheral blood are important in the reaction of the body to pathogens. Their morphology in the brown bear (Ursus arctos) has received little detailed attention. In this study, white cells were separated from 84-ml blood samples drawn from the jugular vein of six captive and three wild-caught bears (six Apennine brown bears from the Italian population, three of undetermined origin). As in most mammals, light and electron microscopy showed the presence of neutrophils, eosinophils, basophils, lymphocytes (some with natural killer features), and monocyte- macrophages. The differential count showed a slightly higher percentage of eosinophils than those observed in the mouse (Mus musculus) and rat (Rattus norvegicus), and in humans. Eosinophils displayed granules containing thinner and more stretched crystalloids than in the cat (Felis silvestris), mouse, and human. Both neutrophils and eosinophils contained numerous nonmembrane-bound inclusions in the cytoplasm that contained lipids (lipid bodies). The number of lipid bodies increased after incubation in 1.0 μM oleic acid. These findings suggest that in the brown bear, peripheral white blood cells also are involved in lipid metabolism as agents of transport and storage. |
author2 |
Musiani M. Gentile L. Valentini M. Roth H.U. Musiani P. |
format |
Article in Journal/Newspaper |
author |
Musiani M. Gentile L. Valentini M. Roth H. U. Musiani P. |
author_facet |
Musiani M. Gentile L. Valentini M. Roth H. U. Musiani P. |
author_sort |
Musiani M. |
title |
White cells in the blood of Apennine brown bears: An ultrastructural study |
title_short |
White cells in the blood of Apennine brown bears: An ultrastructural study |
title_full |
White cells in the blood of Apennine brown bears: An ultrastructural study |
title_fullStr |
White cells in the blood of Apennine brown bears: An ultrastructural study |
title_full_unstemmed |
White cells in the blood of Apennine brown bears: An ultrastructural study |
title_sort |
white cells in the blood of apennine brown bears: an ultrastructural study |
publishDate |
1996 |
url |
https://hdl.handle.net/11585/903349 https://doi.org/10.2307/1382681 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:A1996VD37300015 volume:77 issue:3 firstpage:761 lastpage:767 numberofpages:7 journal:JOURNAL OF MAMMALOGY https://hdl.handle.net/11585/903349 doi:10.2307/1382681 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0029862334 |
op_doi |
https://doi.org/10.2307/1382681 |
container_title |
Journal of Mammalogy |
container_volume |
77 |
container_issue |
3 |
container_start_page |
761 |
_version_ |
1799468323149185024 |