Altered Flow-Mediated Vasodilatation, Low Paraoxonase-1 Activity, and Abnormal High-Density Lipoprotein Subclass Distribution in Takayasu's Arteritis
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- Espinola-Zavaleta Nilda
- Echocardiography in Out Patient Clinic, Instituto Nacional de Cardiología "Ignacio Chávez"
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- Soto-López María Elena
- Department of Immunology, Instituto Nacional de Cardiología "Ignacio Chávez"
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- Carreón-Torres Elizabeth
- Department of Molecular Biology, Instituto Nacional de Cardiología "Ignacio Chávez"
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- Gamboa Ricardo
- Department of Physiology, Instituto Nacional de Cardiología "Ignacio Chávez"
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- Mejía Ana M.
- Department of Hematology, Instituto Nacional de Cardiología "Ignacio Chávez"
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- Márquez-Velasco Ricardo
- Department of Immunology, Instituto Nacional de Cardiología "Ignacio Chávez"
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- Bojalil Rafael
- Department of Immunology, Instituto Nacional de Cardiología "Ignacio Chávez"
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- Huesca-Gomez Claudia
- Department of Physiology, Instituto Nacional de Cardiología "Ignacio Chávez"
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- Reyes Pedro A.
- Department of Immunology, Instituto Nacional de Cardiología "Ignacio Chávez"
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- Pérez-Méndez Oscar
- Department of Molecular Biology, Instituto Nacional de Cardiología "Ignacio Chávez"
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Background: Takayasu's arteritis (TA) is an idiopathic chronic inflammatory disease that causes occlusion of large arteries, but little is known about whether affected patients are characterized by endothelial dysfunction, different high-density lipoproteins (HDL) subclasses and paraoxonase-1 (PON1) activity. Methods and Results: In the present study, 30 patients with TA, 30 age- and gender-matched volunteers (controls) and 15 patients with essential hypertension were studied. Flow-mediated vasodilation (FMD) and maximal blood flow velocity, assessed in the brachial artery by high-resolution ultrasound, were significantly lower in patients. HDL subclass distribution was determined by polyacrylamide gradient gel electrophoresis. HDL-cholesterol, HDL3b subclass and PON1 activity, assessed spectrophotometrically using phenylacetate as the substrate, were also lower in patients compared with controls. In a multiple regression analysis, the use of prednisone and systolic blood pressure were independent variables that predicted the FMD. Conclusions: A low FMD, abnormal size distribution of HDLs, and low PON1 activity are observed in TA patients. These abnormalities appear independently and constitute a cluster that may contribute to the vascular dysfunction of TA arteritis. (Circ J 2009; 73: 760 - 766)<br>
収録刊行物
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- Circulation Journal
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Circulation Journal 73 (4), 760-766, 2009
一般社団法人 日本循環器学会
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- CRID
- 1390282680082022784
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- NII論文ID
- 10025929683
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- NII書誌ID
- AA11591968
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- ISSN
- 13474820
- 13469843
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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