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Leishmaniasis in Canis familiaris – a Report About Microvascular and Cellular Architecture of the Infected Spleen

Identifieur interne : 000B48 ( Istex/Corpus ); précédent : 000B47; suivant : 000B49

Leishmaniasis in Canis familiaris – a Report About Microvascular and Cellular Architecture of the Infected Spleen

Auteurs : G. Alexandre-Pires ; T. Gilot ; D. Pais ; M. Correia ; J. A. Esperança Pina

Source :

RBID : ISTEX:A6EDE589DA887510E41220E518D92FD5A8A65D5F

Abstract

Leishmaniases are a globally widespread group of parasitic diseases from the group of anthropozoonoses. They are caused by an intracellular protozoan parasite that causes a wide spectrum of diseases in humans and dogs worldwide. In fact, the dog is considered one of the most important reservoir. The spleen is one of the several haematopoietic and immunocompetent organs involved. As this organ is a blood filter, the authors looked for the expression of this infection over the microvascular environment and modifications of the spleen cell population related to immunological responses to this parasitic condition.

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DOI: 10.1111/j.1439-0264.2005.00669_5.x

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ISTEX:A6EDE589DA887510E41220E518D92FD5A8A65D5F

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<p>Tools:  Scanning electronic microscopy over intact tissue and corrosion casts, transmission electronic microscopy, histology and immunohistochemistry (MAC 387 and CD3).</p>
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<p>Results:  Our results show three important modifications concerning the microvascular architecture of the spleen when compared to the normal pattern. A striking scarcity of the sinusoidal system sheath that surrounds the central arteries of the white pulp, a huge development of pulp venules and veins, differentiation of typical features of high endothelial venular cells.</p>
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<p>Leishmaniases are a globally widespread group of parasitic diseases from the group of anthropozoonoses. They are caused by an intracellular protozoan parasite that causes a wide spectrum of diseases in humans and dogs worldwide. In fact, the dog is considered one of the most important reservoir. The spleen is one of the several haematopoietic and immunocompetent organs involved. As this organ is a blood filter, the authors looked for the expression of this infection over the microvascular environment and modifications of the spleen cell population related to immunological responses to this parasitic condition.</p>
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Scanning electronic microscopy over intact tissue and corrosion casts, transmission electronic microscopy, histology and immunohistochemistry (MAC 387 and CD3).</p>
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Our results show three important modifications concerning the microvascular architecture of the spleen when compared to the normal pattern. A striking scarcity of the sinusoidal system sheath that surrounds the central arteries of the white pulp, a huge development of pulp venules and veins, differentiation of typical features of high endothelial venular cells.</p>
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<copyrightDate encoding="w3cdtf">2005</copyrightDate>
</originInfo>
<language>
<languageTerm type="code" authority="rfc3066">en</languageTerm>
<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
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<abstract>Leishmaniases are a globally widespread group of parasitic diseases from the group of anthropozoonoses. They are caused by an intracellular protozoan parasite that causes a wide spectrum of diseases in humans and dogs worldwide. In fact, the dog is considered one of the most important reservoir. The spleen is one of the several haematopoietic and immunocompetent organs involved. As this organ is a blood filter, the authors looked for the expression of this infection over the microvascular environment and modifications of the spleen cell population related to immunological responses to this parasitic condition.</abstract>
<abstract>Tools:  Scanning electronic microscopy over intact tissue and corrosion casts, transmission electronic microscopy, histology and immunohistochemistry (MAC 387 and CD3).</abstract>
<abstract>Results:  Our results show three important modifications concerning the microvascular architecture of the spleen when compared to the normal pattern. A striking scarcity of the sinusoidal system sheath that surrounds the central arteries of the white pulp, a huge development of pulp venules and veins, differentiation of typical features of high endothelial venular cells.</abstract>
<abstract>Remarks:  According to our results it seems that independent of the virulence of the parasite involved and the kind of immunity prevalent in a particular host, the spleen develops blood dynamic conditions that allows a sluggish blood flow so that cells involved in immunological processes can proliferate and differentiate and it also contributes to the trapping of lymphocytes to the area through the differentiation of typical characteristics of HEV endothelial cells.</abstract>
<relatedItem type="host">
<titleInfo>
<title>Anatomia, Histologia, Embryologia</title>
</titleInfo>
<genre type="journal">journal</genre>
<identifier type="ISSN">0340-2096</identifier>
<identifier type="eISSN">1439-0264</identifier>
<identifier type="DOI">10.1111/(ISSN)1439-0264</identifier>
<identifier type="PublisherID">AHE</identifier>
<part>
<date>2005</date>
<detail type="volume">
<caption>vol.</caption>
<number>34</number>
</detail>
<detail type="supplement">
<caption>Suppl. no.</caption>
<number>s1</number>
</detail>
<extent unit="pages">
<start>2</start>
<end>3</end>
</extent>
</part>
</relatedItem>
<identifier type="istex">A6EDE589DA887510E41220E518D92FD5A8A65D5F</identifier>
<identifier type="DOI">10.1111/j.1439-0264.2005.00669_5.x</identifier>
<identifier type="ArticleID">AHE669_5_5</identifier>
<recordInfo>
<recordContentSource>WILEY</recordContentSource>
<recordOrigin>Blackwell Verlag GmbH</recordOrigin>
</recordInfo>
</mods>
</metadata>
<serie></serie>
</istex>
</record>

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