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Cholesterol
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1. Cholesterol 7alpha-hydroxylase deficiency in mice on an APOE*3-Leiden background increases hepatic ABCA1 mRNA expression and HDL-cholesterol.
Match Strength: 6.077

OBJECTIVE: High-density lipoprotein (HDL) plays a key role in protection against development of atherosclerosis by reducing inflammation, protecting against LDL oxidation, and promoting reverse cholesterol transport from peripheral tissues to the liver for secretion into bile. Cholesterol 7alpha-hydroxylase (Cyp7a1) catalyzes the rate-limiting step in the intrahepatic conversion of cholesterol to bile acids that may have a role in HDL metabolism. We investigated the effect of Cyp7a1 deficiency on HDL metabolism in APOE*3-Leiden transgenic mice. METHODS AND RESULTS: Reduced bile acid ... Read More »
» Published in Arterioscler Thromb Vasc Biol. 2006 Dec;26(12):2724-30. Epub 2006 Sep 28.

2. Beneficial effects of coconut water feeding on lipid metabolism in cholesterol-fed rats.
Match Strength: 5.865

The purpose of this study was to determine the effect of coconut water feeding in cholesterol-fed rats. Male albino rats were fed tender coconut water and mature coconut water at a dose level of 4 mL/100 g of body weight. Cholesterol feeding caused a marked increase in total cholesterol, very low-density lipoprotein (VLDL) + low-density lipoprotein (LDL) cholesterol, and triglycerides in serum. Administration of coconut water counteracts the increase in total cholesterol, VLDL + LDL cholesterol, and triglycerides, while high-density lipoprotein cholesterol was higher. Lipid levels in the ... Read More »
» Published in J Med Food. 2006 Fall;9(3):400-7.

3. Regulation of Intestinal Cholesterol Absorption.
Match Strength: 5.841

The identification of defective structures in the ATP-binding cassette (ABC) transporters ABCG5 and ABCG8 in patients with sitosterolemia suggests that these two proteins are an apical sterol export pump promoting active efflux of cholesterol and plant sterols from enterocytes back into the intestinal lumen for excretion. The newly identified Niemann-Pick C1-like 1 (NPC1L1) protein is also expressed at the apical membrane of enterocytes and plays a crucial role in the ezetimibe-sensitive cholesterol absorption pathway. These findings indicate that cholesterol absorption is a multistep process ... Read More »
» Published in Annu Rev Physiol. 2006 Sep 20;

4. Cholesterol absorption and synthesis in children with type 1 diabetes.
Match Strength: 5.613

OBJECTIVE: The levels of the surrogate markers of cholesterol absorption (cholestanol and plant sterols) and synthesis (cholesterol precursors) in serum have suggested that in adult type 1 diabetes, cholesterol absorption is high and synthesis is low compared with type 2 diabetic or control subjects. Accordingly, these findings were further studied in children with type 1 diabetes. RESEARCH DESIGN AND METHODS: Forty-eight children with diabetes were compared with 79 age- and sex-matched control subjects. The serum ratios of cholesterol absorption and synthesis markers were measured with gas ... Read More »
» Published in Diabetes Care. 2006 Oct;29(10):2300-4.

5. Physician and patient barriers to adherence with cholesterol guidelines.
Match Strength: 5.575

Several national studies have shown poor compliance with National Cholesterol Education Program II (NCEP) goals. A study we conducted of patients in the General Internal Medicine Clinic at the Marshall University Joan C. Edwards School of Medicine in Huntington showed that 46% of them were not at NCEP goals. We hypothesized that both patient and physician barriers were responsible for these findings so we administered two surveys about barriers to cholesterol management to 261 random patients identified with hypercholesterolemia and to all 50 residents and faculty at the clinic. We identified ... Read More »
» Published in W V Med J. 2006 May-Jun;102(3):23-6.

6. High plasma concentration of remnant lipoprotein cholesterol in obese children and adolescents.
Match Strength: 5.501

OBJECTIVE: Remnant lipoproteins (RLPs) are the products of the lipolytic degradation of triglyceride-rich lipoproteins produced by the liver and intestine. Recent studies have demonstrated that RLPs are correlated with cardiovascular risk. We assessed the relationship between obesity and RLP and evaluated the factors related to RLP in children and adolescents. RESEARCH DESIGN AND METHODS: We measured BMI, waist circumference, blood pressure, body fat mass, total abdominal fat, visceral and subcutaneous fat areas, fasting glucose, insulin, total cholesterol, triglycerides, LDL cholesterol, HDL ... Read More »
» Published in Diabetes Care. 2006 Oct;29(10):2305-10.

7. Cholesterol and saturated fat intake determine the effect of polymorphisms at ABCG5/ABCG8 genes on lipid levels in children.
Match Strength: 5.310

PURPOSE: Analysis of mutations in genes of the cholesterol metabolic pathway has not completely explained the interindividual variability of blood cholesterol concentrations attributed to gene-nutrient interactions. Thus, we analyzed polymorphisms in the ABCG5 and ABCG8 genes, involved in the regulation of intestinal cholesterol absorption, with special interest in a potential interaction with diet to determine lipid levels. METHODS: The polymorphisms ABCG5 C1950G (Gln604Glu) and ABCG8 C1895T (Ala640Val) were determined by polymerase chain reaction and restriction analysis in 1227 healthy ... Read More »
» Published in Genet Med. 2006 Sep;8(9):594-9.

8. The C679X mutation in PCSK9 is present and lowers blood cholesterol in a Southern African population.
Match Strength: 5.255

OBJECTIVE: Missense mutations in the proprotein convertase subtilisin/kexin type 9 gene (PCSK9) can cause familial hypercholesterolemia. However, two nonsense variants of PCSK9, Y142X and C679X, found in approximately 2% of black American subjects, are associated with a 28% reduction in mean low density lipoprotein (LDL)-cholesterol. We sought to determine the frequency and effect of these nonsense variants in an African population. METHODS AND RESULTS: PCSK9 genotypes were determined in 653 black African women attending two antenatal clinics in Zimbabwe. C679X occurred in 3.7% of subjects and ... Read More »
» Published in Atherosclerosis. 2006 Sep 19;

9. Increased nonsterol isoprenoids, dolichol and ubiquinone, in the Smith-Lemli-Opitz syndrome: effects of dietary cholesterol.
Match Strength: 4.718

Smith-Lemli-Opitz syndrome (SLOS) is an inherited autosomal recessive cholesterol deficiency disorder. Our studies have shown that in SLOS children, urinary mevalonate excretion is normal and reflects hepatic HMG-CoA reductase activity but not ultimate sterol synthesis. Hence, we hypothesized that in SLOS there may be increased diversion of mevalonate to nonsterol isoprenoid synthesis. To test our hypothesis, we measured urinary dolichol and ubiquinone, two nonsterol isoprenoids, in 16 children with SLOS and 15 controls, all fed a low-cholesterol diet. The urinary excretion of both dolichol (P ... Read More »
» Published in J Lipid Res. 2006 Dec;47(12):2789-98. Epub 2006 Sep 18.

10. Modulation of human Niemann-Pick C1-like 1 gene expression by sterol: Role of sterol regulatory element binding protein 2.
Match Strength: 4.669

Niemann-Pick C1-like 1 (NPC1L1) is an essential intestinal component of cholesterol absorption. However, little is known about the molecular regulation of intestinal NPC1L1 expression and promoter activity. We demonstrated that human NPC1L1 mRNA expression was significantly decreased by 25-hydroxycholesterol but increased in response to cellular cholesterol depletion achieved by incubation with Mevinolin (an inhibitor of 3-hydroxy-3-methylglutaryl-CoA reductase) in human intestinal Caco-2 cells. We also showed that a -1741/+56 fragment of the NPC1L1 gene demonstrated high promoter activity in ... Read More »
» Published in Am J Physiol Gastrointest Liver Physiol. 2007 Jan;292(1):G369-76. Epub 2006 Sep 28.

11. Convergence of genes implicated in Alzheimer's disease on the cerebral cholesterol shuttle: APP, cholesterol, lipoproteins, and atherosclerosis.
Match Strength: 4.532

Polymorphic genes associated with Alzheimer's disease (see ) delineate a clearly defined pathway related to cerebral and peripheral cholesterol and lipoprotein homoeostasis. They include all of the key components of a glia/neurone cholesterol shuttle including cholesterol binding lipoproteins APOA1, APOA4, APOC1, APOC2, APOC3, APOD, APOE and LPA, cholesterol transporters ABCA1, ABCA2, lipoprotein receptors LDLR, LRP1, LRP8 and VLDLR, and the cholesterol metabolising enzymes CYP46A1 and CH25H, whose oxysterol products activate the liver X receptor NR1H2 and are metabolised to esters by SOAT1. ... Read More »
» Published in Neurochem Int. 2007 Jan;50(1):12-38. Epub 2006 Sep 12.

12. Effects of hydroxysterols and atorvastatin on lipopolysaccharide-induced secretion of tumor necrosis factor and interleukin-10 by mouse macrophages.
Match Strength: 4.432

Preincubation of macrophages with atorvastatin, cholesterol, 25-, 27-hydroxycholesterol, and 7-ketocholesterol reduced the level of TNF-alpha to 10, 61, 13, 64.5, and 82%, respectively. Addition of mevalonate to the preincubation medium canceled the effects atorvastatin, cholesterol, and 7-ketocholesterol, but not the effects of 25- and 27-hydroxycholesterols. Atorvastatin increased the level of IL-10 by 41%, while 7-ketocholesterol and 25-hydroxycholesterol inhibited its secretion by 48 and 55%. Publication Types: In ... Read More »
» Published in Bull Exp Biol Med. 2006 Feb;141(2):233-5.

13. Modeling the structure of the StART domains of MLN64 and StAR proteins in complex with cholesterol.
Match Strength: 4.398

Steroidogenic acute regulatory protein-related lipid transfer (StART) domains are ubiquitously involved in intracellular lipid transport and metabolism and other cell-signaling events. In this work, we use a flexible docking algorithm, comparative modeling, and molecular dynamics (MD) simulations to generate plausible three-dimensional atomic models of the StART domains of human metastatic lymph node 64 (MLN64) and steroidogenic acute regulatory protein (StAR) proteins in complex with cholesterol. Our results show that cholesterol can adopt a similar conformation in the binding cavity in both ... Read More »
» Published in J Lipid Res. 2006 Dec;47(12):2614-30. Epub 2006 Sep 21.

14. Oral application of Enterococcus faecium strain EE3 in healthy dogs.
Match Strength: 4.220

The ability of canine strain Enterococcus faecium EE3 to survive in healthy dogs and its effect on microbiological and biochemical parameters was determined. The strain was individually applied to 11 dogs per os at a dose of 10(9) CFU/mL (differed from 2 to 3 mL) for 1 week and persisted in feces for 3 months after cessation of its administration (reaching average concentration of 6.83 +/- 0.95 log CFU/g). Seven d after administration, a decrease in staphylococci and a significant decrease in Pseudomonas-like bacteria was observed. On the other hand, concentration of lactic acid bacteria ... Read More »
» Published in Folia Microbiol (Praha). 2006;51(3):239-42.

15. Succinic acid monoethyl ester, a novel insulinotropic agent: Effect on lipid composition and lipid peroxidation in streptozotocin-nicotin-amide induced type 2 diabetic rats.
Match Strength: 4.147

Succinic acid monoethyl ester (EMS) is recently proposed as an insulinotropic agent for the treatment of non-insulin dependent diabetes mellitus. Oxidative stress has been suggested to be a contributory factor in the development and complications of diabetes. In the present study the effect of EMS and Metformin on plasma glucose, insulin, serum and tissue lipid profile, lipoproteins and lipid peroxidation in streptozotocin-nicotinamide induced type 2 diabetic model was investigated. The carboxylic nutrient EMS was administered intraperitonially (8 micromol/g body weight) to streptozotocin ... Read More »
» Published in Mol Cell Biochem. 2006 Sep 28;

16. Citrus juice modulates antioxidant enzymes and lipid profiles in orchidectomized rats.
Match Strength: 4.091

Oxidative stress and hypogonadism are two factors linked to the increased incidence of cardiovascular disease in males. Eating fruits and vegetables is known to reduce the incidences of oxidative stress. The objective of this research was to delineate whether drinking daily squeezed orange juice (OJ) or grapefruit juice (GJ) modulates oxidative stress and antioxidant enzymes while impacting cardiovascular risk factors in hypogonad male rats. In the present study, 36 1-year-old male rats were equally divided among the following four treatments: sham (control), orchidectomized (ORX), ORX + OJ, ... Read More »
» Published in J Med Food. 2006 Fall;9(3):422-6.

17. Cholesterol oxidase (ChoE) is not important in the virulence of Rhodococcus equi.
Match Strength: 4.090

To analyze further the role in virulence of the prominent cholesterol oxidase (ChoE) of Rhodococcus equi, an allelic exchange choE mutant from strain 103+ was constructed and assessed for virulence in macrophages, in mice, and in foals. There was no difference between the mutant and parent strain in cytotoxic activity for macrophages or in intra-macrophage multiplication. No evidence of attenuation was obtained in macrophages and in mice, but there was slight attenuation apparent in four intra-bronchially infected foals compared to infection of four foals with the virulent parent strain, based ... Read More »
» Published in Vet Microbiol. 2006 Dec 20;118(3-4):240-6. Epub 2006 Aug 14.

18. Effect of levothyroxine on total lipid profiles as assessed by analytical capillary isotachophoresis in a patient with hypothyroidism.
Match Strength: 3.943

The patient was a 51-year-old Japanese female who had been diagnosed with hyperlipidemia. At the first medical examination, her serum levels of total cholesterol (TC) and triglyceride (TG) were 482 and 205 mg/dl, respectively. Since hyperlipidemia was not improved by pravastatin, atorvastatin or niceritrol, and since the levels of thyroid-stimulating hormone (TSH) and free T4 were 730 IU/ml and 0.3 ng/dl, respectively, the patient was diagnosed as secondary hyperlipidemia with hypothyroidism. A method for the charge isolation of lipoproteins using capillary isotachophoresis (cITP) is proposed ... Read More »
» Published in Endocr J. 2006 Dec;53(6):865-8. Epub 2006 Sep 26.

19. Effect of proteins from beef, pork, and turkey meat on plasma and liver lipids of rats compared with casein and soy protein.
Match Strength: 3.926

OBJECTIVE: We assessed the effect of dietary proteins isolated from beef, pork, and turkey meat on concentrations of cholesterol and triacylglycerols in plasma, lipoproteins, and liver and the composition of the microsomal membrane (fatty acids, phosphatidylcholine/phosphatidylethanolamine ratio) compared with that of casein and soy protein in rats. METHODS: Five groups of 12 rats each were fed semisynthetic diets for 20 d that contained 200 g/kg of proteins isolated from beef, pork, or turkey meat or, as controls, casein or soy protein. RESULTS: Rats fed beef, pork, or turkey proteins did not ... Read More »
» Published in Nutrition. 2006 Nov-Dec;22(11-12):1162-70. Epub 2006 Sep 15.

20. Impact of a CART promoter genetic variation on plasma lipid profile in a general population.
Match Strength: 3.914

The cocaine and amphetamine regulated transcript (CART), an anorexigenic peptide responding to leptin, is expressed in various areas of the hypothalamus. The role of CART in humans and its potential contribution to abnormalities in feeding control are mostly unknown. Since CART plays an important role in the hypothalamic regulation of energy balance by reducing food intake and increasing lipid substrate utilization, it might affect cholesterol metabolism as Neuropeptide Y or pro-opiomelanocortin do. In the present work, we studied the potential effects of three SNPs of the CART promoter in a ... Read More »
» Published in Mol Genet Metab. 2007 Feb;90(2):199-204. Epub 2006 Sep 27.

 << Prev 20  Showing results 1 to 20 of 113 Next 20 >>




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