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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1987-6-11
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pubmed:abstractText |
Effects of condensed tannins isolated from Rhei Rhizoma on the activities of angiotensin converting enzyme (ACE) and various proteases were examined in vitro. Among the various condensed tannins tested, procyanidin B-5 3,3'-di-O-gallate and procyanidin C-1 3,3',3"-tri-O-gallate strongly inhibited the activity of ACE. The concentration of procyanidin B-5 3,3'-di-O-gallate required for 50% inhibition of ACE was 1.3 X 10(-6) M. The inhibition of ACE by condensed tannins was reversible and non-competitive, according to dialysis and to Dixon plots. However, over one hundred times the concentration was required to inhibit activities of other proteases such as trypsin, chymotrypsin, leucine aminopeptidase, carboxypeptidase A and urinary kallikrein. These results suggest that the inhibitory effects of condensed tannins on the activities of ACE are specific.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Angiotensin-Converting Enzyme...,
http://linkedlifedata.com/resource/pubmed/chemical/Biflavonoids,
http://linkedlifedata.com/resource/pubmed/chemical/Catechin,
http://linkedlifedata.com/resource/pubmed/chemical/Proanthocyanidins,
http://linkedlifedata.com/resource/pubmed/chemical/Tannins,
http://linkedlifedata.com/resource/pubmed/chemical/procyanidin B
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pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0021-5198
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
43
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
242-6
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pubmed:dateRevised |
2004-12-3
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pubmed:meshHeading |
pubmed-meshheading:3033368-Angiotensin-Converting Enzyme Inhibitors,
pubmed-meshheading:3033368-Animals,
pubmed-meshheading:3033368-Biflavonoids,
pubmed-meshheading:3033368-Catechin,
pubmed-meshheading:3033368-Cattle,
pubmed-meshheading:3033368-Dialysis,
pubmed-meshheading:3033368-Kinetics,
pubmed-meshheading:3033368-Proanthocyanidins,
pubmed-meshheading:3033368-Swine,
pubmed-meshheading:3033368-Tannins
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pubmed:year |
1987
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pubmed:articleTitle |
Inhibitory effects of condensed tannins on angiotensin converting enzyme.
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pubmed:publicationType |
Journal Article
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