AIMS We sought to determine the association between levels of adiponectin and oxidized low-density lipoprotein (ox-LDL) in patients with diabetic nephropathy as well as their effect on carotid intima-media thickness (cIMT). METHODS Adiponectin and ox-LDL were determined in 25 diabetic patients without nephropathy and 94 patients at different stages of diabetic nephropathy including subjects o...

BACKGROUND Bone morphogenetic protein-2 (BMP-2) plays a key role both in vascular development and pathophysiological processes. However, the effects of oxidized low-density lipoprotein (ox-LDL) combined with atorvastatin on BMP-2 expression are entirely unknown in human umbilical vein endothelial cells (HUVECs). The present study investigates the effects of ox-LDL on BMP-2 expression. Furthermo...

AIM Macrophage apoptosis is a vital event in advanced atherosclerosis, and oxidized low-density lipoprotein (ox-LDL) is a major contributor to this process. Acid sphingomyelinase (ASM) and ceramide are also involved in the induction of apoptosis, particularly in macrophages. Our current study focuses on ASM and investigates its role in ox-LDL-induced macrophage apoptosis. METHODS Human THP-1 ...

Oxidized low density lipoprotein (ox-LDL) and its receptor, lectin-Like ox-LDL receptor-1 (LOX-1), play important roles in the development of endothelial injuries. Olmesartan can protect endothelial cells from the impairment caused by various pathological stimulations. In the present study we investigated whether olmesartan decreased the impairment of endothelial cells induced by ox-LDL by exer...

This study was designed to explore the protective effect of D4F, an apolipoprotein A-I mimetic peptide, on oxidized low-density lipoprotein (ox-LDL)-induced endoplasmic reticulum (ER) stress-C/EBP homologous protein (CHOP) pathway-mediated apoptosis in macrophages. Our results showed that treating apoE mice with D4F decreased serum ox-LDL level and apoptosis in atherosclerotic lesions with conc...

Native and oxidized (OX) low-density lipoprotein (LDL) may contribute to the pathogenesis of age-related macular degeneration (AMD). In this study, we investigated the effects of lipoproteins, including n-LDL and OX-LDL, on the expression of inflammation factors, interleukin-6 (IL-6) and interleukin-1β (IL-1β), in vivo and in cultured retinal pigment epithelial (RPE) cells. The potential role o...

Oxidized low-density lipoprotein (ox-LDL) plays a critical role in the development of atherosclerosis. Recent studies show that ox-LDL may induce apoptosis of cultured rabbit smooth muscle cells and human macrophages. This study was designed to determine the modulation by ox-LDL of apoptosis in cultured human coronary arterial endothelial cells (HCAEC) during hypoxia-reoxygenation and to determ...

The cytotoxicity of oxidized low-density lipoprotein (Ox-LDL) to arterial smooth muscle cells (SMCs) may contribute to atherogenesis by causing cell death in core regions of plaques. The aim of the present study was to identify the components of copper-oxidized LDL responsible for its toxicity to porcine aortic SMCs. Toxicity to SMCs was assessed as the decrease in viable cell counts after 3-da...

Background: Hyperlipidemia and oxidized-low-density lipoproteins (Ox-LDL) are important independent cardiovascular risk factors that have been shown to stimulate vascular smooth muscle cell (VSMC) proliferation. The purpose of the present study was to investigate the effect of vitamin E on Ox-LDL, lipid profile, C-reactive protein (CRP), and VSMC proliferation of rat aorta. Methods: Male Wistar...