Microvascular anatomy of canines stomach and gastric injury caused by nonsteroidalanti-inflammatory drugs
The nonsteroidal antiinflammatory drugs (NSAIs) inhibit the synthesis of prostaglandins, with subsequent reduction of mucus and bicarbonate secretion by the gastric epithelium, reduction of the hydrophobicity of the epithelial layer, impairment of cellular restitution, reduction of the blood flow an...
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Veröffentlicht in: | Brazilian journal of veterinary research and animal science 2007-01, Vol.44, p.14-18 |
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description | The nonsteroidal antiinflammatory drugs (NSAIs) inhibit the synthesis of prostaglandins, with subsequent reduction of mucus and bicarbonate secretion by the gastric epithelium, reduction of the hydrophobicity of the epithelial layer, impairment of cellular restitution, reduction of the blood flow and increase of neutrophils adhesive properties. It has been known that the gastric lesions secondary to NSAIDs use are more often located in the antral piloric and lesser curvature regions of the stomach. The higher susceptibility of these regions can be explained by their microvascular anatomy, which presents capillaries that are narrower and more contorted than those observed in other regions of the stomach; they also are more separated one from the other and they have fewer anastomosis between the ascending capillaries, becoming more predisposed to thrombosis, and consequently to gastric injury.
Os Antiinflamatórios Não Esteróides (AINEs) inibem a síntese de prostaglandinas, com subseqüente diminuição da secreção de muco e bicarbonato pelo epitélio gástrico, redução da hidrofobicidade da camada epitelial, comprometimento da reposição celular, redução do fluxo sanguíneo e aumento da aderência de neutrófilos. Ao longo dos anos, notou-se que as lesões gástricas provocadas pelo uso de AINEs se localizam com maior freqüência nas regiões do antro pilórico e curvatura menor do estômago. A maior susceptibilidade destas regiões pode ser explicada por sua anatomia microvascular, a qual apresenta capilares estreitos, tortuosos e com menor diâmetro que em outras regiões do estômago; estes são mais separados entre si e há menos anastomoses entre os capilares ascendentes, tornando-os mais predispostos à trombose e conseqüente lesão gástrica. |
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Os Antiinflamatórios Não Esteróides (AINEs) inibem a síntese de prostaglandinas, com subseqüente diminuição da secreção de muco e bicarbonato pelo epitélio gástrico, redução da hidrofobicidade da camada epitelial, comprometimento da reposição celular, redução do fluxo sanguíneo e aumento da aderência de neutrófilos. Ao longo dos anos, notou-se que as lesões gástricas provocadas pelo uso de AINEs se localizam com maior freqüência nas regiões do antro pilórico e curvatura menor do estômago. A maior susceptibilidade destas regiões pode ser explicada por sua anatomia microvascular, a qual apresenta capilares estreitos, tortuosos e com menor diâmetro que em outras regiões do estômago; estes são mais separados entre si e há menos anastomoses entre os capilares ascendentes, tornando-os mais predispostos à trombose e conseqüente lesão gástrica.</description><identifier>ISSN: 1413-9596</identifier><identifier>EISSN: 1678-4456</identifier><language>por</language><publisher>Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia</publisher><subject>AINEs ; Anatomia microvascular ; Fluxo sanguíneo ; Lesão gástrica ; Prostaglandinas</subject><ispartof>Brazilian journal of veterinary research and animal science, 2007-01, Vol.44, p.14-18</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784</link.rule.ids></links><search><creatorcontrib>Karla Patrícia Cardoso Araújo</creatorcontrib><creatorcontrib>Francisco Javier Hernandez Blazquez</creatorcontrib><title>Microvascular anatomy of canines stomach and gastric injury caused by nonsteroidalanti-inflammatory drugs</title><title>Brazilian journal of veterinary research and animal science</title><description>The nonsteroidal antiinflammatory drugs (NSAIs) inhibit the synthesis of prostaglandins, with subsequent reduction of mucus and bicarbonate secretion by the gastric epithelium, reduction of the hydrophobicity of the epithelial layer, impairment of cellular restitution, reduction of the blood flow and increase of neutrophils adhesive properties. It has been known that the gastric lesions secondary to NSAIDs use are more often located in the antral piloric and lesser curvature regions of the stomach. The higher susceptibility of these regions can be explained by their microvascular anatomy, which presents capillaries that are narrower and more contorted than those observed in other regions of the stomach; they also are more separated one from the other and they have fewer anastomosis between the ascending capillaries, becoming more predisposed to thrombosis, and consequently to gastric injury.
Os Antiinflamatórios Não Esteróides (AINEs) inibem a síntese de prostaglandinas, com subseqüente diminuição da secreção de muco e bicarbonato pelo epitélio gástrico, redução da hidrofobicidade da camada epitelial, comprometimento da reposição celular, redução do fluxo sanguíneo e aumento da aderência de neutrófilos. Ao longo dos anos, notou-se que as lesões gástricas provocadas pelo uso de AINEs se localizam com maior freqüência nas regiões do antro pilórico e curvatura menor do estômago. A maior susceptibilidade destas regiões pode ser explicada por sua anatomia microvascular, a qual apresenta capilares estreitos, tortuosos e com menor diâmetro que em outras regiões do estômago; estes são mais separados entre si e há menos anastomoses entre os capilares ascendentes, tornando-os mais predispostos à trombose e conseqüente lesão gástrica.</description><subject>AINEs</subject><subject>Anatomia microvascular</subject><subject>Fluxo sanguíneo</subject><subject>Lesão gástrica</subject><subject>Prostaglandinas</subject><issn>1413-9596</issn><issn>1678-4456</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqFjMsKwjAURIMoWB-fIOQHCmmbtnarKG7ciPtyTdp6S5pAbiv0783CvasZ5hxmwaKkKI-xlHmxDF0mWVzlVbFmG6JeiDQXUkYM76i8-wCpyYDnYGF0w8xdyxVYtA1xCgOod0Cad0CjR8XR9pOfgzJRo_lr5tZZGhvvUIMBO2KMtjUwDOEteNpPHe3YqgVDzf6XW3a4Xp7nW9yCq6HzSPXpkYokq0QiyjT7x7_g0kTN</recordid><startdate>20070101</startdate><enddate>20070101</enddate><creator>Karla Patrícia Cardoso Araújo</creator><creator>Francisco Javier Hernandez Blazquez</creator><general>Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia</general><scope>FBQ</scope></search><sort><creationdate>20070101</creationdate><title>Microvascular anatomy of canines stomach and gastric injury caused by nonsteroidalanti-inflammatory drugs</title><author>Karla Patrícia Cardoso Araújo ; Francisco Javier Hernandez Blazquez</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-fao_agris_BR20139010723</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>por</language><creationdate>2007</creationdate><topic>AINEs</topic><topic>Anatomia microvascular</topic><topic>Fluxo sanguíneo</topic><topic>Lesão gástrica</topic><topic>Prostaglandinas</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Karla Patrícia Cardoso Araújo</creatorcontrib><creatorcontrib>Francisco Javier Hernandez Blazquez</creatorcontrib><collection>AGRIS</collection><jtitle>Brazilian journal of veterinary research and animal science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Karla Patrícia Cardoso Araújo</au><au>Francisco Javier Hernandez Blazquez</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microvascular anatomy of canines stomach and gastric injury caused by nonsteroidalanti-inflammatory drugs</atitle><jtitle>Brazilian journal of veterinary research and animal science</jtitle><date>2007-01-01</date><risdate>2007</risdate><volume>44</volume><spage>14</spage><epage>18</epage><pages>14-18</pages><issn>1413-9596</issn><eissn>1678-4456</eissn><abstract>The nonsteroidal antiinflammatory drugs (NSAIs) inhibit the synthesis of prostaglandins, with subsequent reduction of mucus and bicarbonate secretion by the gastric epithelium, reduction of the hydrophobicity of the epithelial layer, impairment of cellular restitution, reduction of the blood flow and increase of neutrophils adhesive properties. It has been known that the gastric lesions secondary to NSAIDs use are more often located in the antral piloric and lesser curvature regions of the stomach. The higher susceptibility of these regions can be explained by their microvascular anatomy, which presents capillaries that are narrower and more contorted than those observed in other regions of the stomach; they also are more separated one from the other and they have fewer anastomosis between the ascending capillaries, becoming more predisposed to thrombosis, and consequently to gastric injury.
Os Antiinflamatórios Não Esteróides (AINEs) inibem a síntese de prostaglandinas, com subseqüente diminuição da secreção de muco e bicarbonato pelo epitélio gástrico, redução da hidrofobicidade da camada epitelial, comprometimento da reposição celular, redução do fluxo sanguíneo e aumento da aderência de neutrófilos. Ao longo dos anos, notou-se que as lesões gástricas provocadas pelo uso de AINEs se localizam com maior freqüência nas regiões do antro pilórico e curvatura menor do estômago. A maior susceptibilidade destas regiões pode ser explicada por sua anatomia microvascular, a qual apresenta capilares estreitos, tortuosos e com menor diâmetro que em outras regiões do estômago; estes são mais separados entre si e há menos anastomoses entre os capilares ascendentes, tornando-os mais predispostos à trombose e conseqüente lesão gástrica.</abstract><pub>Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia</pub></addata></record> |
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source | DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals |
subjects | AINEs Anatomia microvascular Fluxo sanguíneo Lesão gástrica Prostaglandinas |
title | Microvascular anatomy of canines stomach and gastric injury caused by nonsteroidalanti-inflammatory drugs |
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