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Matti Narkia

Omega-3s help stave off age-related vision loss | Reuters - 1 views

    "NEW YORK (Reuters Health) - Want to keep your eyesight sharp as you age? Eating lots of fish packed with healthy omega-3 fatty acids could help, new research suggests.

    Among 1,837 people who had early signs of age-related macular degeneration (AMD), those with the highest consumption of omega-3 fatty acids were 30 percent less likely to progress to the advanced form of the disease over a 12-year period than those with the lowest omega-3 intake, researchers found."
Matti Narkia

Arch Ophthalmol -- Cigarette Smoking, Fish Consumption, Omega-3 Fatty Acid Intake, and ... - 0 views

    Cigarette smoking, fish consumption, omega-3 fatty acid intake, and associations with age-related macular degeneration: the US Twin Study of Age-Related Macular Degeneration.
    Seddon JM, George S, Rosner B.
    Arch Ophthalmol. 2006 Jul;124(7):995-1001.
    PMID: 16832023

    Conclusions This study of twins provides further evidence that cigarette smoking increases risk while fish consumption and omega-3 fatty acid intake reduce risk of AMD
Matti Narkia

Intake of Fish and n3 Fatty Acids and Risk of Coronary Heart Disease Among Japanese: Th... - 0 views

    Intake of fish and n3 fatty acids and risk of coronary heart disease among Japanese: the Japan Public Health Center-Based (JPHC) Study Cohort I.
    Iso H, Kobayashi M, Ishihara J, Sasaki S, Okada K, Kita Y, Kokubo Y, Tsugane S; JPHC Study Group.
    Circulation. 2006 Jan 17;113(2):195-202. Epub 2006 Jan 9.
    PMID: 16401768
    doi: 10.1161/CIRCULATIONAHA.105.581355

    Conclusions- Compared with a modest fish intake of once a week or &20 g/d, a higher intake was associated with substantially reduced risk of coronary heart disease, primarily nonfatal cardiac events, among middle-aged persons
Matti Narkia

Fish Oil-Derived Fatty Acids, Docosahexaenoic Acid and Docosapentaenoic Acid, and the R... - 0 views

    Fish oil-derived fatty acids, docosahexaenoic acid and docosapentaenoic acid, and the risk of acute coronary events: the Kuopio ischaemic heart disease risk factor study.
    Rissanen T, Voutilainen S, Nyyssönen K, Lakka TA, Salonen JT.
    Circulation. 2000 Nov 28;102(22):2677-9.
    PMID: 11094031

    Methods and Results-We studied this association in the Kuopio Ischaemic Heart Disease Risk Factor Study, a prospective population study in Eastern Finland. Subjects were randomly selected and included 1871 men aged 42 to 60 years who had no clinical coronary heart disease at baseline examination. A total of 194 men had a fatal or nonfatal acute coronary event during follow-up. In a Cox proportional hazards' model adjusting for other risk factors, men in the highest fifth of the proportion of serum DHA+DPA in all fatty acids had a 44% reduced risk (P=0.014) of acute coronary events compared with men in the lowest fifth. Men in the highest fifth of DHA+DPA who had a low hair content of mercury (<=2.0 µg />2.0 µg/g). There was no association between proportion of eicosapentaenoic acid and the risk of acute coronary events.

    Conclusions-Our data provide further confirmation for the concept that fish oil-derived fatty acids reduce the risk of acute coronary events. However, a high mercury content in fish could attenuate this protective effect.
Matti Narkia

Fish Consumption Shifts Lipoprotein Subfractions to a Less Atherogenic Pattern in Human... - 0 views

    Fish consumption shifts lipoprotein subfractions to a less atherogenic pattern in humans.
    Li Z, Lamon-Fava S, Otvos J, Lichtenstein AH, Velez-Carrasco W, McNamara JR, Ordovas JM, Schaefer EJ.
    J Nutr. 2004 Jul;134(7):1724-8.
    PMID: 15226460

    The effect of fish consumption on plasma lipoprotein subfraction concentrations was studied in 22 men and women (age > 40 y). Subjects were provided an average American diet (AAD, 35% of energy as fat, 14% as saturated fat, and 35 mg cholesterol/MJ) for 6 wk before being assigned to a National Cholesterol Education Program (NCEP) Step 2 high-fish diet (n = 11, 26% of energy as fat, 4.5% as saturated fat, and 15 mg cholesterol/MJ) or a NCEP Step 2 low-fish diet (n = 11, 26% of energy as fat, 4.0% as saturated fat, and 11 mg cholesterol/MJ) for 24 wk. All food and drink were provided to study participants. Consumption of the high-fish NCEP Step 2 diet was associated with a significant reduction in medium and small VLDL, compared with the AAD diet, whereas the low-fish diet did not affect VLDL subfractions. Both diets significantly reduced LDL cholesterol concentrations, without modifying LDL subfractions. Both diets also lowered HDL cholesterol concentrations. However, the high-fish diet significantly lowered only the HDL fraction containing both apolipoprotein (apo) AI and AII (LpAI:AII) and did not change HDL subfractions assessed by NMR, whereas the low-fish diet significantly lowered the HDL fraction containing only apo AI (LpAI) and the large NMR HDL fractions, resulting in a significant reduction in HDL particle size. Neither diet affected VLDL and LDL particle size. Our data indicate that within the context of a diet restricted in fat and cholesterol, a higher fish content favorably affects VLDL and HDL subspecies
Matti Narkia

Clinical Prevention of Sudden Cardiac Death by n-3 Polyunsaturated Fatty Acids and Mech... - 0 views

    Clinical prevention of sudden cardiac death by n-3 polyunsaturated fatty acids and mechanism of prevention of arrhythmias by n-3 fish oils.
    Leaf A, Kang JX, Xiao YF, Billman GE.
    Circulation. 2003 Jun 3;107(21):2646-52. Review.
    PMID: 12782616
    doi: 10.1161/01.CIR.0000069566.78305.33

    This review will be limited specifically to the beneficial prevention by the n-3 polyunsaturated fatty acids (PUFAs) of arrhythmic deaths, including sudden cardiac death, which annually causes some 300 000 deaths in the United States and millions more worldwide. We will also show that the growing body of positive clinical studies is supported by what has been learned in animal and laboratory studies regarding the mechanism by which n-3 PUFAs prevent cardiac arrhythmias.
Matti Narkia

n-3 Fatty acids and cardiovascular disease -- Breslow 83 (6): S1477 -- American Journal... - 0 views

    n-3 fatty acids and cardiovascular disease.
    Breslow JL.
    Am J Clin Nutr. 2006 Jun;83(6 Suppl):1477S-1482S. Review.
    PMID: 16841857

    The results of prospective cohort studies indicate that consuming fish or fish oil containing the n-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) is associated with decreased cardiovascular death, whereas consumption of the vegetable oil-derived n-3 fatty acid {alpha}-linolenic acid is not as effective. Randomized control trials (RCTs) in the context of secondary prevention also indicate that the consumption of EPA plus DHA is protective at doses <1 g />3 g/d, EPA plus DHA can improve cardiovascular disease risk factors, including decreasing plasma triacylglycerols, blood pressure, platelet aggregation, and inflammation, while improving vascular reactivity. Mainly on the basis of the results of RCTs, the American Heart Association recommends that everyone eat oily fish twice per week and that those with coronary heart disease eat 1 g/d of EPA plus DHA from oily fish or supplements. Directions for future research include 1) RCTs to confirm the initial trials showing that EPA plus DHA decreases cardiovascular death and additional studies to determine whether this effect is due to EPA, DHA, or the combination; the dosage of the effective components; and whether the mechanism of action in humans is prevention of fatal arrhythmias. 2) Clinical studies to determine whether the reduction in cardiovascular disease risk factors is due to EPA, DHA, or the combination and the dosage of the effective components. 3) Clinical studies to determine whether vegetable oil-derived {alpha}-linolenic acid added to a diet enriched in n-6 fatty acids can effectively substitute for fish oil-derived EPA plus DHA.
Matti Narkia

Cardiac Benefits of Fish Consumption May Depend on the Type of Fish Meal Consumed: The ... - 0 views

    Cardiac benefits of fish consumption may depend on the type of fish meal consumed: the Cardiovascular Health Study.
    Mozaffarian D, Lemaitre RN, Kuller LH, Burke GL, Tracy RP, Siscovick DS; Cardiovascular Health Study.
    Circulation. 2003 Mar 18;107(10):1372-7.
    PMID: 12642356
    doi: 10.1161/01.CIR.0000055315.79177.16

    Conclusions- Among adults aged >=65 years, modest consumption of tuna or other broiled or baked fish, but not fried fish or fish sandwiches, is associated with lower risk of IHD death, especially arrhythmic IHD death. Cardiac benefits of fish consumption may vary depending on the type of fish meal consumed.
Matti Narkia

Effect of Fish Oil on Heart Rate in Humans: A Meta-Analysis of Randomized Controlled Tr... - 0 views

    Effect of fish oil on heart rate in humans: a meta-analysis of randomized controlled trials.
    Mozaffarian D, Geelen A, Brouwer IA, Geleijnse JM, Zock PL, Katan MB.
    Circulation. 2005 Sep 27;112(13):1945-52. Epub 2005 Sep 19.
    PMID: 16172267
    doi: 10.1161/CIRCULATIONAHA.105.556886

    Conclusions- In randomized controlled trials in humans, fish oil reduces HR, particularly in those with higher baseline HR or longer treatment duration. These findings provide firm evidence that fish oil consumption directly or indirectly affects cardiac electrophysiology in humans. Potential mechanisms such as effects on the sinus node, ventricular efficiency, or autonomic function deserve further investigation.
Matti Narkia

Quantitative Analysis of the Benefits and Risks of Consuming Farmed and Wild Salmon -- ... - 0 views

    Quantitative analysis of the benefits and risks of consuming farmed and wild salmon.
    Foran JA, Good DH, Carpenter DO, Hamilton MC, Knuth BA, Schwager SJ.
    J Nutr. 2005 Nov;135(11):2639-43.
    PMID: 16251623

    Contaminants in farmed Atlantic and wild Pacific salmon raise important questions about the competing health benefits and risks of fish consumption. A benefit-risk analysis was conducted to compare quantitatively the cancer and noncancer risks of exposure to organic contaminants in salmon with the (n-3) fatty acid-associated health benefits of salmon consumption. Recommended levels of (n-3) fatty acid intake, as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), may be achieved by consuming farmed or wild salmon while maintaining an acceptable level of noncarcinogenic risk. However, the recommended level of EPA+DHA intake cannot be achieved solely from farmed or wild salmon while maintaining an acceptable level of carcinogenic risk. Although the benefit-risk ratio for carcinogens and noncarcinogens is significantly greater for wild Pacific salmon than for farmed Atlantic salmon as a group, the ratio for some subgroups of farmed salmon is on par with the ratio for wild salmon. This analysis suggests that risk of exposure to contaminants in farmed and wild salmon is partially offset by the fatty acid-associated health benefits. However, young children, women of child-bearing age, pregnant women, and nursing mothers not at significant risk for sudden cardiac death associated with CHD but concerned with health impairments such as reduction in IQ and other cognitive and behavioral effects, can minimize contaminant exposure by choosing the least contaminated wild salmon or by selecting other sources of (n-3) fatty acids.
Matti Narkia

Fish intake is associated with a reduced progression of coronary artery ather... - 0 views

    Fish intake is associated with a reduced progression of coronary artery atherosclerosis in postmenopausal women with coronary artery disease.
    Erkkilä AT, Lichtenstein AH, Mozaffarian D, Herrington DM.
    Am J Clin Nutr. 2004 Sep;80(3):626-32.
    PMID: 15321802

    Conclusions: Consumption of fish is associated with a significantly reduced progression of coronary artery atherosclerosis in women with coronary artery disease.
Matti Narkia

NEJM -- Mercury, Fish Oils, and the Risk of Myocardial Infarction - 0 views

    Mercury, fish oils, and the risk of myocardial infarction.
    Guallar E, Sanz-Gallardo MI, van't Veer P, Bode P, Aro A, Gómez-Aracena J, Kark JD, Riemersma RA, Martín-Moreno JM, Kok FJ; Heavy Metals and Myocardial Infarction Study Group.
    N Engl J Med. 2002 Nov 28;347(22):1747-54.
    PMID: 12456850

    Conclusions The toenail mercury level was directly associated with the risk of myocardial infarction, and the adipose-tissue DHA level was inversely associated with the risk. High mercury content may diminish the cardioprotective effect of fish intake.
Matti Narkia

Mercury, Fish Oils, and Risk of Acute Coronary Events and Cardiovascular Disease, Coron... - 0 views

    Mercury, fish oils, and risk of acute coronary events and cardiovascular disease, coronary heart disease, and all-cause mortality in men in eastern Finland.
    Virtanen JK, Voutilainen S, Rissanen TH, Mursu J, Tuomainen TP, Korhonen MJ, Valkonen VP, Seppänen K, Laukkanen JA, Salonen JT.
    Arterioscler Thromb Vasc Biol. 2005 Jan;25(1):228-33. Epub 2004 Nov 11.
    PMID: 15539625
    doi: 10.1161/01.ATV.0000150040.20950.61

    Conclusions- High content of mercury in hair may be a risk factor for acute coronary events and CVD, CHD, and all-cause mortality in middle-aged eastern Finnish men. Mercury may also attenuate the protective effects of fish on cardiovascular health.

    Mercury may increase the risk of cardiovascular diseases. In this study, high mercury content in hair increased the risk of cardiovascular morbidity and mortality in middle-aged Finnish men and attenuated the beneficial effects of fish oils on cardiovascular health. Regular consumption of fish with high mercury content should be avoided.
Matti Narkia

Fish consumption and risk of subclinical brain abnormalities on MRI in older adults - 0 views

    Fish consumption and risk of subclinical brain abnormalities on MRI in older adults.
    Virtanen JK, Siscovick DS, Longstreth WT Jr, Kuller LH, Mozaffarian D.
    Neurology. 2008 Aug 5;71(6):439-46.
    PMID: 18678827
    doi: 10.1212/01.wnl.0000324414.12665.b0

    Among older adults, modest consumption of tuna/other fish, but not fried fish, was associated with lower prevalence of subclinical infarcts and white matter abnormalities on MRI examinations. Our results add to prior evidence that suggest that dietary intake of fish with higher eicosapentaenoic acid and docosahexaenoic acid content, and not fried fish intake, may have clinically important health benefits
Matti Narkia

Fish consumption and risk of major chronic disease in men -- Virtanen et al. 88 (6): 16... - 0 views

    Fish consumption and risk of major chronic disease in men.
    Virtanen JK, Mozaffarian D, Chiuve SE, Rimm EB.
    Am J Clin Nutr. 2008 Dec;88(6):1618-25.
    PMID: 19064523

    Conclusions: Modest fish consumption was associated with a lower risk of total cardiovascular disease, consistent with cardiac mortality benefits but not with total cancer or overall major chronic disease; n-6 fatty acid consumption did not influence these relations.
Matti Narkia

Vegetables, Nuts And Mediterranean Diet Better For Heart, Research Review - 0 views

    Scientists in Canada reviewing the research so far on links between different diets and heart disease found strong evidence that diets high in vegetables and nuts, and those that follow a Mediterranean pattern rich in fruit, vegetables and fish were strongly associated with lower heart disease risk than those that rely on food with a high glycemic index or high in trans-fatty acids. High glycemic index food includes rice, pasta and refined carbohydrates like white bread, and foods high in trans-fatty acids include fried foods, baked goods and snacks.
Matti Narkia

Fatty fish and fish omega-3 fatty acid intakes decrease the breast cancer risk: a case-... - 0 views

    Fatty fish and fish omega-3 fatty acid intakes decrease the breast cancer risk: a case-control study.
    Kim J, Lim SY, Shin A, Sung MK, Ro J, Kang HS, Lee KS, Kim SW, Lee ES.
    BMC Cancer. 2009 Jun 30;9:216.
    PMID: 19566923
    doi: 10.1186/1471-2407-9-216

    These results suggest that high consumption of fatty fish is associated with a reduced risk for breast cancer, and that the intake of omega-3 fatty acids from fish is inversely associated with postmenopausal breast cancer risk
Matti Narkia

A Systematic Review of the Evidence Supporting a Causal Link Between Dietary Factors an... - 0 views

    A systematic review of the evidence supporting a causal link between dietary factors and coronary heart disease.
    Mente A, de Koning L, Shannon HS, Anand SS.
    Arch Intern Med. 2009 Apr 13;169(7):659-69. Review.
    PMID: 19364995

    Conclusions The evidence supports a valid association of a limited number of dietary factors and dietary patterns with CHD. Future evaluation of dietary patterns, including their nutrient and food components, in cohort studies and randomized trials is recommended
Matti Narkia

Health benefits of eating fish far outweigh risks from contaminants, report concludes -... - 0 views

    October 17, 2006 | Steve Stiles
    Boston, MA - A review of the literature on the health effects of dietary fish or fish-oil intake has a reassuring message for seafood lovers, anyone eating fish for health reasons, and perhaps most everyone else [1]. Levels of mercury and other contaminants in commercially bought fish are low, and their potential risks are overwhelmed by likely reductions in cardiovascular mortality, according to a report in the October 18, 2006 issue of the Journal of the American Medical Association.

    "The main message is really that everybody should be eating one or two servings of fish or seafood per week for their health," Dr Dariush Mozaffarian (Harvard School of Public Health, Boston, MA) told heartwire.

    In his analysis, coauthored with Dr Eric B Rimm (Brigham and Women's Hospital, Boston, MA), regular "modest" intake of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), the two long-chain n-3 polyunsaturated fatty acids (PUFAs) abundant in finfish and shellfish (collectively referred to as "fish" in the article), is associated with a 36% drop in coronary disease mortality (p<0.001) and a 17>

    Those potential benefits are immense compared with the highly publicized but apparently low health risks associated with methylmercury, dioxins, and polychlorinated biphenyls (PCBs) that have been found in some fish species, they write. The evidence suggests a potential for neurodevelopmental deficits from early exposure to methylmercury, but the risk is likely diminished by limiting intake of fish with high methylmercur
Matti Narkia

High-dose fish oil for Lp(a) - The Heart Scan Blog - 1 views

    "Lipoprotein(a), or Lp(a), is a problem area in coronary plaque reversal.

    While our current Track Your Plaque record holder for largest percentage reduction in heart scan score has Lp(a), it remains among the more troublesome lipoprotein patterns.

    One unique treatment for Lp(a) is high-dose omega-3 fatty acids from fish oil. While the data are relatively meager, there is one solid study from Lp(a) expert, Dr. Santica Marcovina of the University of Washington, called "The Lugalawa Study."

    In this unique set of observations, 1300 members of a Bantu tribe living in Tanzania were studied. What made this population unusual is the fact that two groups of Bantus lived under different circumstances. One group lived on Nyasa Lake (3rd largest lake in Africa and reputed to have the greatest number of species of fish of any lake in the world) and ate large quantities of freshwater fish providing up to 500 mg of omega-3s, EPA and DHA, per day. Another Bantu group lived away from the lake as farmers, eating a pure vegetarian diet without fish. "
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