This study aimed to evaluate the association between the triglyceride-glucose (TyG) index and high-sensitivity C-reactive protein-to-albumin ratio (hsCAR) and the prognosis of patients with STEMI and hypertension. A total of 699 patients diagnosed with STEMI and hypertension were included in this study database. Compared to the low TyG index group (< 7.
View Article and Find Full Text PDFLower level of low-density lipoprotein cholesterol (LDL-C) is paradoxically associated with increased mortality in ST elevation myocardial infarction (STEMI) patients. The underlying mechanism remains unclear. In a cohort of 220 de novo STEMI patients receiving timely primary percutaneous coronary intervention, admission LDL-C was negatively associated with circulating CD14++CD16+ monocyte counts.
View Article and Find Full Text PDFObjective: Pulse pressure is strongly associated with the early development of large-vessel atherosclerotic disease. However, the relationship between pulse pressure and carotid plaque in China is unknown. Thus, we investigated the associations of pulse pressure and mean arterial pressure with the presence of carotid plaques in a low-income population in rural China.
View Article and Find Full Text PDFThe role of homocysteine (Hcy) in the pathogenesis of coronary artery disease (CAD) is controversial, as decreased Hcy levels have not demonstrated consistent clinical benefits. Recent studies propose that S-adenosylhomocysteine (SAH), and not Hcy, plays a role in cardiovascular disease (CVD). We aimed to assess the relationship between plasma SAH and coronary artery lesions.
View Article and Find Full Text PDFCurcumin affects the functions of adipocytes. But it is not known whether curcumin has some effect on the cholesterol efflux process of adipocytes. Rabbit subcutaneous adipocytes were incubated with 5, 10 and 20 μg/ml curcumin for 24 h.
View Article and Find Full Text PDFCardiovasc Pathol
September 2008
Background: Leptin may play an important role in the development of atherosclerosis. Several transcription genes [including peroxisome proliferator-activated receptor gamma (PPARgamma) and CD36] involved in lipid and glucose metabolism and inflammatory processes may correlate to leptin expression. The aim of this study was to investigate the effect of niacin on serum leptin levels in hypercholesterolemic rabbits and the expression of leptin, PPARgamma, and CD36 in adipocytes from hypercholesterolemic rabbits.
View Article and Find Full Text PDFClin Chim Acta
March 2008
Background: The pro-inflammatory cytokine tumor necrosis factor-alpha (TNF-alpha) has multiple effects on adipocyte, including cell differentiation, lipolysis and the production of adipokines. It is not known whether TNF-alpha has effect on cholesterol efflux in adipocyte.
Methods: Rabbit subcutaneous adipocytes were incubated with 5, 10, 20 ng/ml TNF-alpha for 24 h.
Zhonghua Xin Xue Guan Bing Za Zhi
August 2007
Objective: To investigate the effect of niacin on HDL-induced cholesterol efflux and LXRalpha expression in adipocytes from hypercholesterolemic rabbits.
Methods: Twelve rabbits fed with high-cholesterol diet for 8 weeks were randomly divided into two groups: (1) high cholesterol group (n = 6): maintained high cholesterol diet for 6 weeks; (2) niacin group (n = 6): the same cholesterol diet plus niacin (0.2 g .
Zhong Nan Da Xue Xue Bao Yi Xue Ban
August 2007
Objective: To explore whether oxidized low-density lipoprotein (ox-LDL) can stimulate the cholesterol efflux in fully differentiated 3T3-L1 cells and the possible mechanism.
Methods: Fully differentiated 3T3-L1 cells were incubated in the medium containing various concentrations of ox-LDL ( 0 to 50 microg/mL) for 8 or 24 hours. 22(R)-Hydroxycholesterol (10 micromol/L) was exposed to preconditioned adipocytes with 25 microg/mL ox-LDL for 24 hours.
Background: The adipocyte has been proven to recognize and degrade oxidized low-density lipoprotein (oxLDL), while cholesterol efflux from adipocytes to clear excess cholesterol loaded by oxLDL is essential to maintain its normal function. Thus, it is intriguing to explore the effects of oxLDL on cholesterol efflux in adipocytes.
Methods: Fully differentiated 3T3-L1 cells were incubated in the medium containing various concentrations of oxLDL (0 to 50 microg/mL) for 8 or 24 h.
Zhong Nan Da Xue Xue Bao Yi Xue Ban
June 2007
Objective: To explore the effect of niacin on the serum adiponectin concentration in hypercholesterolemia rabbit and the adiponectin concentration secreted by adipocytes in normal rabbits.
Methods: Ten male New Zealand white rabbits fed with high cholesterol diet for 8 weeks were randomly divided into 2 groups: (1) The high cholesterol group maintained a high cholesterol diet for 8 weeks. (2) The same cholesterol diet plus niacin (0.
Background: Adipose tissue contains a large amount of cholesterol and performs a buffer function for circulating cholesterol. Liver X receptors (LXR) alpha and peroxisome proliferator-activated receptor gamma (PPARgamma) might play a significant role in adipocyte cholesterol metabolism through mediation of cholesterol efflux. The aim of this study was to evaluate the effect of niacin on LXRalpha and PPARgamma expression and HDL-induced cholesterol efflux in adipocytes from hypercholesterolemic rabbits.
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