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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
2
|
| pubmed:dateCreated |
1988-6-17
|
| pubmed:abstractText |
Effects of CD-349 (2-nitratopropyl 3-nitratopropyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate) on cerebral circulation were studied in 10 cats. The cats were fixed in a stereotactic head-holder, and two burr holes were made at 3-mm intervals over the left parietal cortex. Through one cranial window, the pial artery and vein diameters were measured continuously by a newly developed videocamera system in conjunction with a width analyzer, and the other one was used for measurement of cerebral blood volume (CBV). The pial artery (141 +/- 14 micron) was dilated by 16.6 +/- 4.9% (p less than 0.01) 1 min and 24.8 +/- 5.1% (p less than 0.01) 5 min after the CD-349 injection. The pial vein (101 +/- 20 micron) was also dilated with the percent increase of the diameter being 11.4 +/- 4.0% (p less than 0.01) 1 min and 11.3 +/- 4.9% (p less than 0.05) 5 min after the CD-349 administration. The CBV was also increased. The mean arterial blood pressure was decreased by 39.8 +/- 7.3 mmHg (p less than 0.01) 1 min and 34.4 +/- 5.5 mmHg (p less than 0.01) 5 min after drug injection. Thereafter, the blood pressure gradually returned to the pre-drug level. Form these results it is suggested that CD-349 exerts direct vasodilatory action via inhibition of calcium influx across vascular cell membranes into cerebral vessels.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
Feb
|
| pubmed:issn |
0004-4172
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
38
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
221-4
|
| pubmed:dateRevised |
2003-11-14
|
| pubmed:meshHeading |
pubmed-meshheading:3370067-Animals,
pubmed-meshheading:3370067-Blood Pressure,
pubmed-meshheading:3370067-Calcium Channel Blockers,
pubmed-meshheading:3370067-Cats,
pubmed-meshheading:3370067-Cerebrovascular Circulation,
pubmed-meshheading:3370067-Dihydropyridines,
pubmed-meshheading:3370067-Female,
pubmed-meshheading:3370067-Male,
pubmed-meshheading:3370067-Muscle, Smooth, Vascular,
pubmed-meshheading:3370067-Vasodilation
|
| pubmed:year |
1988
|
| pubmed:articleTitle |
Effects of the new calcium antagonist 2-nitratopropyl 3-nitratopropyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate on cerebral circulation in cats.
|
| pubmed:affiliation |
Department of Neurology, School of Medicine, Keio University, Tokyo, Japan.
|
| pubmed:publicationType |
Journal Article
|