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Article in Chinese | WPRIM | ID: wpr-330765


<p><b>OBJECTIVE</b>To analyze the clinical value of dual-source CT (DSCT) in the diagnosis of coronary artery disease.</p><p><b>METHODS</b>Fifty-five patients with suspected coronary heart disease underwent both DSCT coronary angiography (DSCTCA) and selective coronary angiography (CAG) examination, and the diagnostic sensitivity, specificity and accuracy of the DSCTCA was evaluated.</p><p><b>RESULTS</b>The sensitivity, specificity, positive and negative predictive value, and accuracy of DSCT in the diagnosis of coronary heart disease were 97.7%, 72.6%, 93.5%, 88.9% and 92.7% by the number of patients, respectively; by calculating the coronary arteries, the sensitivity, specificity, positive and negative predictive value, accuracy were 94.9%, 95.8%, 92.5%, 97.1%, 95.5%, respectively. According to the lesion segment, these values were 88.2%, 96.9%, 90.5%, 96.1%, 94.7%, respectively. DSCTCA showed no significant difference from CAG for a diagnostic purpose, nor did their vessel sensitivity, specificity, positive and negative predictive value, and accuracy in different coronaries differ significantly.</p><p><b>CONCLUSION</b>DSCT has a diagnostic accuracy of coronary heart disease close to that CAG and can on some occasion serve as an alternative to CAG in the screening of coronary artery disease.</p>

Adult , Aged , Coronary Angiography , Methods , Coronary Artery Disease , Diagnostic Imaging , Female , Humans , Male , Middle Aged , Predictive Value of Tests , Radiographic Image Interpretation, Computer-Assisted , Sensitivity and Specificity , Tomography, X-Ray Computed , Methods
Article in Chinese | WPRIM | ID: wpr-290029


<p><b>OBJECTIVE</b>To investigate the correlation between vascular remodeling index (RI) and serum adiponectin, plasma monocyte chemoattractant protein-1 (MCP-1), endothelial function and evaluate the mechanism of coronary in-stent restenosis.</p><p><b>METHODS</b>RI 6 months after percutaneous coronary intervention (PCI), serum adiponectin, plasma MCP-1 and flow-mediated dilation (FMD) before and 3 days,6 months after PCI were measured in 30 patients with and 30 without coronary in-stent restenosis.</p><p><b>RESULTS</b>Compared with patients without restenosis and those with restenosis before PCI, the patients with coronary in-stent restenosis showed significantly increased plasma MCP-1 3 days and 6 months after PCI (P<0.05) and reduced RI 6 months after PCI, serum adiponectin and FMD 3 days and 6 months after PCI (P<0.05). RI was positively correlated to serum adiponectin and FMD and inversely to MCP-1.</p><p><b>CONCLUSION</b>The occurrence of coronary in-stent restenosis is the result of the interrelations between multiple factors.</p>

Adiponectin , Blood , Adult , Aged , Angioplasty, Balloon, Coronary , Chemokine CCL2 , Blood , Coronary Disease , Blood , Therapeutics , Coronary Restenosis , Blood , Endothelium, Vascular , Female , Humans , Male , Middle Aged , Stents
Article in English | WPRIM | ID: wpr-251866


<p><b>OBJECTIVE</b>To identify compounds that may be responsible for catnip response of Actinidia macrosperma, and compare chemical compositions in the wild and in vitro regenerated plants.</p><p><b>METHODS</b>GC-MS and relative retention indices with n-alkanes as reference points were used for compound identification, and component relative percentage was calculated based on GC peak areas without using correction factors.</p><p><b>RESULTS</b>There are 28 compounds (92.72%) and 15 compounds (93.88%) identified in the essential oils from the wild and regenerated plants, respectively. Dihydronepetalactone, iridomyrmecin, and dihydroactinidiolide, which are believed to be attractive to felines, are present in both wild and regenerated plants. Actinine was not detected, and beta-pheylethyl alcohol was only present in wild plant. In addition, short-chain enol derivatives, messengers in chemical communication, are commonly present in wild plant of A. macrosperma, but absent in regenerated one.</p><p><b>CONCLUSION</b>Dihydronepetalactone, iridomyrmecin, and dihydroactinidiolide are responsible for the catnip response of A. macrosperma.</p>

Actinidia , Chemistry , Animals , Cats , China , Nepeta , Chemistry , Oils, Volatile