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Matti Narkia

NEJM -- Extended-Release Niacin or Ezetimibe and Carotid Intima-Media Thickness - 0 views

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    Extended-release niacin or ezetimibe and carotid intima-media thickness. Taylor AJ, Villines TC, Stanek EJ, Devine PJ, Griffen L, Miller M, Weissman NJ, Turco M. N Engl J Med. 2009 Nov 26;361(22):2113-22. Epub 2009 Nov 15. PMID: 19915217 Conclusions This comparative-effectiveness trial shows that the use of extended-release niacin causes a significant regression of carotid intima-media thickness when combined with a statin and that niacin is superior to ezetimibe. (ClinicalTrials.gov number, NCT00397657 [ClinicalTrials.gov] .
Matti Narkia

Endothelial-Vasoprotective Effects of High-Density Lipoprotein Are Impaired in Patients... - 0 views

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    Endothelial-Vasoprotective Effects of High-Density Lipoprotein Are Impaired in Patients With Type 2 Diabetes Mellitus but Are Improved After Extended-Release Niacin Therapy. Sorrentino SA, Besler C, Rohrer L, Meyer M, Heinrich K, Bahlmann FH, Mueller M, Horváth T, Doerries C, Heinemann M, Flemmer S, Markowski A, Manes C, Bahr MJ, Haller H, von Eckardstein A, Drexler H, Landmesser U. Circulation. 2009 Dec 21. [Epub ahead of print] PMID: 20026785 doi: 10.1161/CIRCULATIONAHA.108.836346 Conclusions-HDL from patients with type 2 diabetes mellitus and metabolic syndrome has substantially impaired endothelial-protective effects compared with HDL from healthy subjects. ER niacin therapy not only increases HDL plasma levels but markedly improves endothelial-protective functions of HDL in these patients, which is potentially more important.
Matti Narkia

Key Protein May Explain The Anti-aging And Anti-cancer Benefits Of Dietary Restriction - 0 views

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    ScienceDaily (May 26, 2009) - A protein that plays a key role in tumor formation, oxygen metabolism and inflammation is involved in a pathway that extends lifespan by dietary restriction. The finding, which appears in the May 22, 2009 edition of the online journal PLoS Genetics, provides a new understanding of how dietary restriction contributes to longevity and cancer prevention and gives scientists new targets for developing and testing drugs that could extend the healthy years of life.
Matti Narkia

Calorie intake linked to cell lifespan, cancer development - 0 views

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    "ScienceDaily (Dec. 17, 2009) - Researchers from the University of Alabama at Birmingham (UAB) have discovered that restricting consumption of glucose, the most common dietary sugar, can extend the life of healthy human-lung cells and speed the death of precancerous human-lung cells, reducing cancer's spread and growth rate. The research has wide-ranging potential in age-related science, including ways in which calorie-intake restriction can benefit longevity and help prevent diseases like cancer that have been linked to aging, said principal investigator Trygve Tollefsbol, Ph.D., D.O., a professor in the Department of Biology. "These results further verify the potential health benefits of controlling calorie intake." Tollefsbol said. "Our research indicates that calorie reduction extends the lifespan of healthy human cells and aids the body's natural ability to kill off cancer-forming cells.""
Matti Narkia

Vitamin B Niacin Offers No Additional Benefit To Statin Therapy In Seniors Already Diag... - 0 views

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    "The routine prescription of extended-release niacin, a B vitamin (1,500 milligrams daily), in combination with traditional cholesterol-lowering therapy offers no extra benefit in correcting arterial narrowing and diminishing plaque buildup in seniors who already have coronary artery disease, a new vascular imaging study from Johns Hopkins experts shows. In tests on 145 Baltimore-area men and women with existing atherosclerosis, all over age 65, researchers found that after 18 months of drug therapy, reductions in arterial wall thickness were measurably no different between the half who took dual niacin-statin therapy and the rest who remained on statin therapy alone. "
Matti Narkia

Quality of HDL differs in diabetics but improves with niacin therapy - theheart.org - 1 views

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    "Quality of HDL differs in diabetics but improves with niacin therapy December 22, 2009 | Michael O'Riordan Hannover, Germany - A small study published this week hints that the effects of HDL cholesterol differ in healthy patients from those with diabetes mellitus [1]. HDL cholesterol in individuals with diabetes has impaired endothelial protective functions compared with the HDL from healthy subjects, although treatment with extended-release niacin can improve these endothelial protective effects, according to researchers. Publishing their findings online December 21, 2009 in Circulation, lead investigator Dr Sajoscha Sorrentino (Hannover Medical School, Germany) and colleagues write that because recent HDL-raising intervention studies have yielded mixed results, "circulating HDL-cholesterol levels alone likely do not represent an adequate measure of therapeutic efficacy, and indexes of HDL functionality are urgently needed for assessment of the potential of HDL-targeted therapies to exert vasoprotective effects." Speaking with heartwire, senior investigator Dr Ulf Landmesser (University of Zürich, Switzerland), said the results have implications for clinical research. "We have to understand that we can't look only at the HDL levels in the plasma, but we need to look at the quality," he said. "The quality of the HDL is not the same in different patients. This is very important for targeting HDL as a treatment. Second, niacin therapy is a promising way not only to raise HDL but also to improve the quality; it is a good treatment option, especially if the larger outcomes data are positive.""
Matti Narkia

ARBITER 6-HALTS: HDL raising with niacin superior to ezetimibe - 0 views

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    "Orlando, FL - Adding extended-release niacin (Niaspan, Abbott) to statin therapy results in a significant regression of atherosclerosis as measured by carotid intima-media thickness (IMT), whereas the addition of ezetimibe (Zetia, Merck/Schering-Plough) to statin therapy did not, according to an eagerly anticipated study "
Matti Narkia

Niacin best for raising good cholesterol | ZDNet Healthcare | ZDNet.com - 0 views

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    "Want more of that good HDL cholesterol? Try a timed-release niacin, and be skeptical if your doctor gives the sales pitch for Zetia or Vytorin. The authority for this is a study dubbed ARBITER-6, which was stopped suddenly this summer, with the study's authors insisting safety had nothing to do with it. It was a question of efficacy. The results, described in the New England Journal of Medicine, make clear that niacin does better at the main job, keeping arteries open"
Matti Narkia

Calorie restriction: Scientists take important step toward 'fountain of youth' - 0 views

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    "ScienceDaily (Dec. 26, 2009) - Going back for a second dessert after your holiday meal might not be the best strategy for living a long, cancer-free life say researchers from the University of Alabama at Birmingham. That's because they've shown exactly how restricted calorie diets -- specifically in the form of restricted glucose -- help human cells live longer. They found that the normal cells lived longer, and many of the precancerous cells died, when given less glucose. Gene activity was also measured under these same conditions. The reduced glucose caused normal cells to have a higher activity of the gene that dictates the level of telomerase, an enzyme that extends their lifespan and lower activity of a gene (p16) that slows their growth. Epigenetic effects (effects not due to gene mutations) were found to be a major cause in changing the activity of these genes as they reacted to decreased glucose levels. "Western science is on the cusp of developing a pharmaceutical fountain of youth" said Gerald Weissmann, M.D., Editor-in-Chief of The FASEB Journal. "This study confirms that we are on the path to persuading human cells to let us to live longer, and perhaps cancer-free, lives.""
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