atherosclerosis/protease

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HIV protease inhibitors-induced atherosclerosis: prevention by alpha-tocopherol.

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Prolonged treatments with inhibitors of human immunodeficiency(HIV)-encoded protease (ARPI) have been reported to induce early atherosclerotic events. Our in vitro study indicates that alpha-tocopherol may prevent drug-induced premature atherosclerosis since it interferes with CD36 scavenger

Protease-activated receptor 1 inhibits cholesterol efflux and promotes atherogenesis via cullin 3-mediated degradation of the ABCA1 transporter.

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Although signaling of thrombin via its receptor protease-activated receptor 1 (Par1) is known to occur in atherothrombosis, its link to the actual pathogenesis of this condition is less clear. To better understand the role of thrombin-Par1 signaling in atherosclerosis, here we have studied their

Estrogen receptor-alpha mediates gender differences in atherosclerosis induced by HIV protease inhibitors.

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As part of highly active antiretroviral therapy, protease inhibitor treatment has significantly increased the lifespan of human immunodeficiency virus (HIV)-infected individuals. Many patients, however, develop negative side effects, including premature atherosclerosis. We have previously

[Protease inhibitors and ectasia in coronary atherosclerosis].

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The possibility of elastase contributing to degradation of the arterial wall in atherosclerosis and to the formation of ectasia has prompted us to assay the main protease inhibitors, alpha 1-antitrypsin and alpha 2-macroglobulin, in patients with angiographic coronary disease with and without

ADAMTS proteases: key roles in atherosclerosis?

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The ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs) proteases are secreted enzymes that regulate extracellular matrix turnover by degrading specific matrix components. Roles for the proteases in inflammation and atherosclerosis have been suggested by a number of recent

Cysteine Protease Cathepsins in Atherosclerosis and Abdominal Aortic Aneurysm.

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Extracellular matrix remodeling is an important mechanism in the initiation and progression of cardiovascular diseases. Cysteine protease cathepsins are among the important proteases that affect major events in the pathogenesis of atherosclerosis and abdominal aortic aneurysm, including smooth

Factors associated with accelerated atherosclerosis in HIV-1-infected persons treated with protease inhibitors.

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Recent evidence suggests that as a group protease inhibitors (PIs) may accelerate certain factors associated with atherosclerosis. The objective of this study was to evaluate the effect of individual PIs (indinavir, lopinavir, nelfinavir, ritonavir, and saquinavir) on certain factors associated with

HIV positivity, protease inhibitor exposure and subclinical atherosclerosis: a systematic review and meta-analysis of observational studies.

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BACKGROUND Patients with HIV may have increased risk of atherosclerotic cardiovascular disease owing to multiple biological mechanisms. OBJECTIVE To evaluate the evidence for subclinical atherosclerosis among patients with HIV. METHODS Systematic review of observational studies. METHODS We searched

Secretory leukocyte protease inhibitor promising protective roles in obesity-associated atherosclerosis.

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Secretory leukocyte protease inhibitor (SLPI), a serine protease inhibitor, which was most commonly examined in mucosal fluids such as saliva, is a versatile molecule and plays non-redundant roles. In addition to its anti-protease activity, SLPI has been shown to express anti-bacterial, anti-viral,

Nucleoside reverse transcriptase inhibitors prevent HIV protease inhibitor-induced atherosclerosis by ubiquitination and degradation of protein kinase C.

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HIV protease inhibitors are important pharmacological agents used in the treatment of HIV-infected patients. One of the major disadvantages of HIV protease inhibitors is that they increase several cardiovascular risk factors, including the expression of CD36 in macrophages. The expression of CD36 in

Assessment of atherosclerosis using carotid ultrasonography in a cohort of HIV-positive patients treated with protease inhibitors.

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OBJECTIVE Lipid disorders associated with the use of protease inhibitors (PI) may be a risk factor for premature atherosclerosis development. The aim of this study is to evaluate the extent of carotid intima media thickness (IMT) among HIV-positive patients treated with PI containing regimens

Optical visualization of cathepsin K activity in atherosclerosis with a novel, protease-activatable fluorescence sensor.

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BACKGROUND Cathepsin K (CatK), a potent elastinolytic and collagenolytic cysteine protease, likely participates in the evolution and destabilization of atherosclerotic plaques. To assess better the biology of CatK activity in vivo, we developed a novel near-infrared fluorescence (NIRF) probe for

HIV protease inhibitors activate the unfolded protein response in macrophages: implication for atherosclerosis and cardiovascular disease.

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Human immunodeficiency virus (HIV) protease inhibitors have been successfully used in highly active antiretroviral therapy for HIV-1 infection. Treatment of patients infected with HIV with HIV protease inhibitors is unfortunately associated with a number of clinically significant metabolic

Acipimox, an inhibitor of lipolysis, attenuates atherogenesis in LDLR-null mice treated with HIV protease inhibitor ritonavir.

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OBJECTIVE The advent of HIV protease inhibitors has greatly extended the life span of AIDS patients. With an aging HIV(+) population, the cardiometabolic side effects of these drugs are becoming increasingly important clinical concerns. The purpose of this study was to test the hypothesis that

Protease imaging of human atheromata captures molecular information of atherosclerosis, complementing anatomic imaging.

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OBJECTIVE There is hope that molecular imaging can identify vulnerable atherosclerotic plaques. However, there is a paucity of clinical translational data to guide the future development of this field. Here, we cross-correlate cathepsin-B or matrix metalloproteinase-2/-9 molecular optical imaging

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