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Consuming fructose-sweetened, not glucose-sweetened, beverages increases visceral adiposity and lipids and decreases insulin sensitivity in overweight/obese humans
Consuming fructose-sweetened, not glucose-sweetened, beverages increases visceral adiposity and lipids and decreases insulin sensitivity in overweight/obese humans.
Stanhope KL, Schwarz JM, Keim NL, Griffen SC, Bremer AA, Graham JL, Hatcher B, Cox CL, Dyachenko A, Zhang W, McGahan JP, Seibert A, Krauss RM, Chiu S, Schaefer EJ, Ai M, Otokozawa S, Nakajima K, Nakano T, Beysen C, Hellerstein MK, Berglund L, Havel PJ.
J Clin Invest. 2009 May;119(5):1322-34. Epub 2009 Apr 20.
PMID: 19381015
doi: 10.1172/JCI37385.
Studies in animals have documented that, compared with glucose, dietary fructose induces dyslipidemia and insulin resistance. To assess the relative effects of these dietary sugars during sustained consumption in humans, overweight and obese subjects consumed glucose- or fructose-sweetened beverages providing 25% of energy requirements for 10 weeks. Although both groups exhibited similar weight gain during the intervention, visceral adipose volume was significantly increased only in subjects consuming fructose. Fasting plasma triglyceride concentrations increased by approximately 10% during 10 weeks of glucose consumption but not after fructose consumption. In contrast, hepatic de novo lipogenesis (DNL) and the 23-hour postprandial triglyceride AUC were increased specifically during fructose consumption. Similarly, markers of altered lipid metabolism and lipoprotein remodeling, including fasting apoB, LDL, small dense LDL, oxidized LDL, and postprandial concentrations of remnant-like particle–triglyceride and –cholesterol significantly increased during fructose but not glucose consumption. In addition, fasting plasma glucose and insulin levels increased and insulin sensitivity decreased in subjects consuming fructose but not in those consuming glucose. These data suggest that dietary fructose specifically increases DNL, promotes dyslipidemia, decreases insulin sensitivity, and increases visceral adiposity in overweight/obese adults.
Vitamin B Niacin Offers No Additional Benefit To Statin Therapy In Seniors Already Diagnosed With Coronary Artery Disease
"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. "
Arch Ophthalmol -- 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, July 2006, Seddon et al. 124 (7): 995
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
Fish Intake and Risk of Incident Atrial Fibrillation -- Mozaffarian et al. 110 (4): 368 -- Circulation
Fish intake and risk of incident atrial fibrillation.
Mozaffarian D, Psaty BM, Rimm EB, Lemaitre RN, Burke GL, Lyles MF, Lefkowitz D, Siscovick DS.
Circulation. 2004 Jul 27;110(4):368-73. Epub 2004 Jul 19.
PMID: 15262826
doi: 10.1161/01.CIR.0000138154.00779.A5
Conclusions— Among elderly adults, consumption of tuna or other broiled or baked fish, but not fried fish or fish sandwiches, is associated with lower incidence of AF. Fish intake may influence risk of this common cardiac arrhythmia.
Cardiac Benefits of Fish Consumption May Depend on the Type of Fish Meal Consumed: The Cardiovascular Health Study -- Mozaffarian et al. 107 (10): 1372 -- Circulation
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.
Fish consumption and risk of subclinical brain abnormalities on MRI in older adults
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
Conclusions:
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
A preliminary study of the safety, feasibility and cognitive efficacy of soy isoflavone supplements in older men and women -- Gleason et al. 38 (1): 86 -- Age and Ageing
A preliminary study of the safety, feasibility and cognitive efficacy of soy isoflavone supplements in older men and women.
Gleason CE, Carlsson CM, Barnet JH, Meade SA, Setchell KD, Atwood CS, Johnson SC, Ries ML, Asthana S.
Age Ageing. 2009 Jan;38(1):86-93. Epub 2008 Dec 2.
PMID: 19054783
doi:10.1093/ageing/afn227
Conclusions: these data suggest that administration of 100 mg/day of isoflavones was well tolerated. Plasma genistein and daidzein levels, but not equol, increased with isoflavone administration. Finally, data support the potential cognitive effects of soy isoflavones in older adults.
High Tofu Intake Is Associated with Worse Memory in Elderly Indonesian Men and Women
High tofu intake is associated with worse memory in elderly Indonesian men and women.
Hogervorst E, Sadjimim T, Yesufu A, Kreager P, Rahardjo TB.
Dement Geriatr Cogn Disord. 2008;26(1):50-7. Epub 2008 Jun 27.
PMID: 18583909
DOI: 10.1159/000141484
CONCLUSION: The results for tofu consumption as a risk factor for low memory function may tie in with the Honolulu Asia Aging Study data. It is unclear whether these negative associations could be attributed to potential toxins or to its phytoestrogen levels. Estrogen (through which receptors phytoestrogens can exert effects) was found to increase dementia risk in women over 65 years of age. Tempe contains high levels of phytoestrogens, but (due to fermentation) also exhibits high folate levels which may exert protective effects. Future studies should validate these findings and investigate potential mechanisms.
Vitamin D, Nutritional Deficiency, and the Medical Paradigm -- Heaney 88 (11): 5107 -- Journal of Clinical Endocrinology & Metabolism
Vitamin D, nutritional deficiency, and the medical paradigm.
Heaney RP.
J Clin Endocrinol Metab. 2003 Nov;88(11):5107-8. Review. No abstract available.
PMID: 14602734
Low serum 25-hydroxyvitamin D concentrations are associated with greater all-cause mortality in older community-dwelling women
Low serum 25-hydroxyvitamin D concentrations are associated with greater all-cause mortality in older community-dwelling women.
Semba RD, Houston DK, Ferrucci L, Cappola AR, Sun K, Guralnik JM, Fried LP.
Nutr Res. 2009 Aug;29(8):525-30.
PMID: 19761886
doi:10.1016/j.nutres.2009.07.007
Older community-dwelling women with low 25(OH)D levels are at an increased risk of death.
Consumption of 2 and 4 egg yolks/d for 5 wk increases macular pigment concentrations in older adults with low macular pigment taking cholesterol-lowering statins -- Vishwanathan et al. 90 (5): 1272 -- American Journal of Clinical Nutrition
Consumption of 2 and 4 egg yolks/d for 5 wk increases macular pigment concentrations in older adults with low macular pigment taking cholesterol-lowering statins.
Vishwanathan R, Goodrow-Kotyla EF, Wooten BR, Wilson TA, Nicolosi RJ.
Am J Clin Nutr. 2009 Nov;90(5):1272-9. Epub 2009 Sep 16.
PMID: 19759170
Conclusions: Consumption of 4 egg yolks/d, and possibly of 2 egg yolks/d, for 5 wk benefited macular health in older adults with low MPOD. Serum HDL cholesterol increased without an increase in LDL cholesterol in this study population, most of whom were taking cholesterol-lowering statins.
Association of vitamin D deficiency with cognitive impairment in older women. Cross-sectional study -- Annweiler et al., 10.1212/WNL.0b013e3181beecd3 -- Neurology
Association of vitamin D deficiency with cognitive impairment in older women. Cross-sectional study.
Annweiler C, Schott AM, Allali G, Bridenbaugh SA, Kressig RW, Allain P, Herrmann FR, Beauchet O.
Neurology. 2009 Sep 30. [Epub ahead of print]
PMID: 19794127
doi:10.1212/WNL.0b013e3181beecd3
Conclusions: 25-Hydroxyvitamin D deficiency was associated with cognitive impairment in this cohort of community-dwelling older women.
Association between 25-hydroxyvitamin D levels and cognitive performance in middle-aged and older European men - J Neurol Neurosurg Psychiatry. 2009 Jul;80(7):722-9.
Association between 25-hydroxyvitamin D levels and cognitive performance in middle-aged and older European men.
Lee DM, Tajar A, Ulubaev A, Pendleton N, O'Neill TW, O'Connor DB, Bartfai G, Boonen S, Bouillon R, Casanueva FF, Finn JD, Forti G, Giwercman A, Han TS, Huhtaniemi IT, Kula K, Lean ME, Punab M, Silman AJ, Vanderschueren D, Wu FC; EMAS study group.
J Neurol Neurosurg Psychiatry. 2009 Jul;80(7):722-9. Epub 2009 May 21.
PMID: 19460797
doi:10.1136/jnnp.2008.165720
Conclusion: In this study, lower 25(OH)D levels were associated with poorer performance on the DSST. Further research is warranted to determine whether vitamin D sufficiency might have a role in preserving cognitive function in older adults.
Vitamin D deficiency is associated with worse cognitive performance and lower bone density in older African Americans. - [J Natl Med Assoc. 2009] - PubMed result
Vitamin D deficiency is associated with worse cognitive performance and lower bone density in older African Americans.
Wilkins CH, Birge SJ, Sheline YI, Morris JC.
J Natl Med Assoc. 2009 Apr;101(4):349-54.
PMID: 19397226
CONCLUSIONS: Vitamin D deficiency in older African Americans was associated with worse cognitive performance and lower BMD of the hip
Association between depressive symptoms and 25-hydroxyvitamin D in middle-aged and elderly Chinese
Association between depressive symptoms and 25-hydroxyvitamin D in middle-aged and elderly Chinese.
Pan A, Lu L, Franco OH, Yu Z, Li H, Lin X.
J Affect Disord. 2009 Nov;118(1-3):240-3. Epub 2009 Feb 27.
PMID: 19249103
doi:10.1016/j.jad.2009.02.002
Conclusions
Depressive symptoms are not associated with 25(OH)D concentrations in middle-aged and elderly Chinese. Further prospective studies are required to determine whether they are correlated.
Arch Gen Psychiatry -- Depression Is Associated With Decreased 25-Hydroxyvitamin D and Increased Parathyroid Hormone Levels in Older Adults, May 2008, Hoogendijk et al. 65 (5): 508
Depression is associated with decreased 25-hydroxyvitamin D and increased parathyroid hormone levels in older adults.
Hoogendijk WJ, Lips P, Dik MG, Deeg DJ, Beekman AT, Penninx BW.
Arch Gen Psychiatry. 2008 May;65(5):508-12.
PMID: 18458202
Conclusion The results of this large population-based study show an association of depression status and severity with decreased serum 25(OH)D levels and increased serum PTH levels in older individuals.
Urgent action needed to improve vitamin D status among older people in England! - [Age Ageing. 2009] - PubMed result
Urgent action needed to improve vitamin D status among older people in England!
Hirani V, Tull K, Ali A, Mindell J.
Age Ageing. 2009 Nov 23. [Epub ahead of print]
PMID: 19934073
CONCLUSIONS: poor vitamin D status of older people continues to be a public health problem in England. Hypovitaminosis D is associated with many risk factors and poor health outcomes. There is now an urgent need for a uniform policy on assessment and dietary supplementation of vitamin D in older people to prevent poor vitamin D status and its negative consequences
Vitamin D Newsletter Mar 2006 | Dr. Wactawski-Wende, New England Journal of Medicine, and Ethics
"Good research is good for medicine. The only thing more important than good research is ethical research. The February 16th issue of the New England Journal of Medicine (NEJM) had a research paper on vitamin D and colon cancer. Was it good research? Was it ethical research? At stake are the lives of 36,000 older American women who agreed to participate in the Women's Health Initiative. "
Effects of vitamin D supplementation on strength, physical performance, and falls in older persons: a systematic review. - Wiley InterScience :: Article :: HTML Full Text
Effects of vitamin D supplementation on strength, physical performance, and falls in older persons: a systematic review.
Latham NK, Anderson CS, Reid IR.
J Am Geriatr Soc. 2003 Sep;51(9):1219-26. Review.
PMID: 12919233
DOI: 10.1046/j.1532-5415.2003.51405.
Conclusion: Although there is insufficient evidence that vitamin D supplementation alone improves physical performance in older people, some data suggest a benefit from vitamin D combined with calcium supplementation, but this requires confirmation in large, well-designed trials.
Prevalence of low serum vitamin D concentration in an urban population of elderly women in Poland. - [Pol Arch Med Wewn. 2009] - PubMed result
Prevalence of low serum vitamin D concentration in an urban population of elderly women in Poland.
Napiórkowska L, Budlewski T, Jakubas-Kwiatkowska W, Hamzy V, Gozdowski D, Franek E.
Pol Arch Med Wewn. 2009 Nov;119(11):699-703.
PMID: 19920793
CONCLUSIONS: The prevalence of low vitamin D concentrations in an urban population of elderly women in Poland is very high. Lower vitamin D levels are associated with a higher PTH concentration
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