نتایج جستجو برای: abcg5
تعداد نتایج: 307 فیلتر نتایج به سال:
In this study we analyzed functions of ATP-binding cassette (ABC) transporters involved in sterol transport from Caco-2 cells. Treatment with a synthetic liver x receptor ligand elevated both mRNA and protein levels of ABCG5, G8, and ABCA1. The ligand stimulated cholesterol efflux, suggesting that ABC transporters are involved in it. To identify the acceptors of cholesterol, potential molecules...
Liver X receptor (LXR) agonists increase both total fecal sterol excretion and macrophage-specific reverse cholesterol transport (RCT) in vivo. In this study, we assessed the effects of ABCG5/G8 deficiency as well as those of LXR agonist-induction of RCT from macrophages to feces in vivo. A [(3)H]cholesterol-labeled macrophage cell line was injected intraperitoneally into ABCG5/G8-deficient (G5...
Stroke-prone spontaneously hypertensive rats (SHRSP) deposit plant sterols in their bodies and have a mutation in ATP binding cassette transporter G5 (Abcg5). Lymphatic recovery rates of campesterol and sitosterol in SHRSP rats were comparable to those in Wistar rats, a strain that does not deposit plant sterols in the body and has no mutation in Abcg5. Higher absorption of stigmasterol and sit...
Objective(s): ABC transporters comprise a large family of transmembrane proteins that use the energy provided by ATP hydrolysis to translocate a variety of substrates across biological membranes. All members of the human ABCG subfamily, except for ABCG2, are cholesterol-transporter. The aim of this study was to determine the liver, the small intestine and kidney ABCG5 relative gene expression...
Elevated plasma lipids, particularly cholesterol within low density lipoproteins, is an important risk factor for developing atherosclerosis which can cause angina pectoris, myocardial infarction, and stroke. Thyroid hormone (TH) has a strong influence on lipid metabolism and the aim of this thesis was to gain more insight into how TH modulates cholesterol and lipoprotein metabolism. In contras...
The spontaneous mouse mutation “thrombocytopenia and cardiomyopathy” (trac) causes macrothrombocytopenia, prolonged bleeding times, anemia, leukopenia, infertility, cardiomyopathy, and shortened life span. Homozygotes show a 20-fold decrease in platelet numbers and a 3-fold increase in platelet size with structural alterations and functional impairments in activation and aggregation. Megakaryoc...
OBJECTIVE(S) ABC transporters comprise a large family of transmembrane proteins that use the energy provided by ATP hydrolysis to translocate a variety of substrates across biological membranes. All members of the human ABCG subfamily, except for ABCG2, are cholesterol-transporter. The aim of this study was to determine the liver, the small intestine and kidney ABCG5 relative gene expression in...
Cholesterol and other sterols exit the body primarily by secretion into bile. In patients with sitosterolemia, mutations in either of two ATP-binding cassette (ABC) half-transporters, ABCG5 or ABCG8, lead to reduced secretion of sterols into bile, implicating these transporters in this process. To elucidate the roles of ABCG5 and ABCG8 in the trafficking of sterols, we disrupted Abcg5 and Abcg8...
Lactation is associated with increased expression of bile acid transporters and an increased size and hydrophobicity of the bile acid pool in rats. ATP-binding cassette (ABC) transporters multidrug resistance protein 2 (Mdr2), Abcb11 [bile salt export pump (Bsep)], and Abcg5/Abcg8 heterodimers are essential for the biliary secretion of phospholipids, bile acids, and cholesterol, respectively. W...
The spontaneous mouse mutation "thrombocytopenia and cardiomyopathy" (trac) causes macrothrombocytopenia, prolonged bleeding times, anemia, leukopenia, infertility, cardiomyopathy, and shortened life span. Homozygotes show a 20-fold decrease in platelet numbers and a 3-fold increase in platelet size with structural alterations and functional impairments in activation and aggregation. Megakaryoc...
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