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Contents contributed and discussions participated by Matti Narkia

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Matti Narkia

McCollum Award Lecture, 1994: vitamin D--new horizons for the 21st century -- Holick 60... - 0 views

www.ajcn.org/619

1994 ajcn study review Holick vitamin D vitamin_D McCollum Award Lecture psoriasis calcitriol 1.25-dihydroxyvitamin_D osteoporosis bone sunlight RDA nutrition medline rickets

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  • Matti Narkia on 25 Aug 09
     
    McCollum Award Lecture, 1994: vitamin D--new horizons for the 21st century. Holick MF. Am J Clin Nutr. 1994 Oct;60(4):619-30. Review. PMID: 8092101
Matti Narkia

Prevalence of Vitamin D Insufficiency in Patients With Parkinson Disease and Alzheimer ... - 0 views

archneur.ama-assn.org/...1348

2008 October study research epidemiological humans vitamin D vitamin_D insufficiency low_levels Parkinson Disease Parkinson:_Disease Parkinson 25ohd calcidiol Alzheimer's Disease Alzheimer's_Disease Alzheimer's Alzheimer nutrition medline prevalence

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    Prevalence of vitamin d insufficiency in patients with Parkinson disease and Alzheimer disease.\nEvatt ML, Delong MR, Khazai N, Rosen A, Triche S, Tangpricha V.\nArch Neurol. 2008 Oct;65(10):1348-52.\nPMID: 18852350
Matti Narkia

Addressing the health benefits and risks, involving vitamin D or skin cancer, of increa... - 0 views

www.pnas.org/...668.full

2008 January pnas study research humans vitamin D vitamin_D sun exposure sun_exposure sun exposure health benefits risks skin cancer skin_cancer melanoma incidence prognosis cancer_prognosis latitude mortality nutrition medline epidemiological

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    Addressing the health benefits and risks, involving vitamin D or skin cancer, of increased sun exposure.\nMoan J, Porojnicu AC, Dahlback A, Setlow RB.\nProc Natl Acad Sci U S A. 2008 Jan 15;105(2):668-73. Epub 2008 Jan 7.\nPMID: 18180454
Matti Narkia

Dose response to vitamin D supplementation among postmenopausal African American women.... - 0 views

www.ajcn.org/...1657

2007 December ajcn Aloia study research clinical_trial humans African_American women black postmenopausal vitamin D vitamin_D 25ohd calcidiol supplementation dosing dosage dose-response deficiency osteoporosis nutrition medline

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    Dose response to vitamin D supplementation among postmenopausal African American women. Talwar SA, Aloia JF, Pollack S, Yeh JK. Am J Clin Nutr. 2007 Dec;86(6):1657-62. PMID: 18065583
Matti Narkia

A nested case control study of plasma 25-hydroxyvitamin D concentrations and risk of co... - 0 views

jnci.oxfordjournals.org/...1120

2007 July jnci study research epidemiological humans vitamin D vitamin_D status levels 25ohd calcidiol Willett Giovannucci Hollis colorectal cancer colorectal_cancer colon colon_cancer risk nutrition medline

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    A nested case control study of plasma 25-hydroxyvitamin D concentrations and risk of colorectal cancer. Wu K, Feskanich D, Fuchs CS, Willett WC, Hollis BW, Giovannucci EL. J Natl Cancer Inst. 2007 Jul 18;99(14):1120-9. Epub 2007 Jul 10. PMID: 17623801
Matti Narkia

Vitamin d and its role in cancer and immunity: a prescription for sunlight. - Nutr Clin... - 0 views

ncp.sagepub.com/...305

2007 June study review vitamin D vitamin_D role cancer immunity sunlight nutrition medline

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    Vitamin d and its role in cancer and immunity: a prescription for sunlight. Mullin GE, Dobs A. Nutr Clin Pract. 2007 Jun;22(3):305-22. Review. PMID: 17507731 (free full text PDF available)
Matti Narkia

JAMA -- Serum 25-Hydroxyvitamin D Levels and Risk of Multiple Sclerosis, December 20, 2... - 0 views

jama.ama-assn.org/...2832

2006 December JAMA study research epidemiological humans vitamin D vitamin_D status levels 25ohd calcidiol multiple sclerosis multiple_sclerosis MS risk nutrition medline Hollis

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    Serum 25-hydroxyvitamin D levels and risk of multiple sclerosis. Munger KL, Levin LI, Hollis BW, Howard NS, Ascherio A. JAMA. 2006 Dec 20;296(23):2832-8. PMID: 17179460
Matti Narkia

Vitamin D: A millenium perspective. - Wiley InterScience :: Article :: HTML Full Text - 0 views

www3.interscience.wiley.com/...HTMLSTART

2003 study review vitamin D vitamin_D Holick millenium perspective sunlight bone cancer psoriasis nutrition medline plankton CVD hypertension multiple_sclerosis MS osteoporosis

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  • Matti Narkia on 25 Aug 09
     
    Vitamin D: A millenium perspective. Holick MF. J Cell Biochem. 2003 Feb 1;88(2):296-307. Review. PMID: 12520530
Matti Narkia

Vitamin D deficiency linked to more colds and flu: Scientific American Blog - 0 views

www.sciam.com/...post.cfm

2009 February sciam news vitamin D vitamin_D deficiency levels low_levels 25ohd calcidiol flu common cold colds common cold upper_respiratory_tract_infection URTI nutrition sunshine immunity immune_system

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  • Matti Narkia on 25 Aug 09
     
    Is sunshine more than just a home remedy for a cold? New research suggests it may be: In a study that will be published tomorrow, people with low levels of vitamin D - also known as the "sunshine vitamin" - were more likely to catch cold and flu than folks with adequate amounts. The effect of the vitamin was strongest in people with asthma and other lung diseases who are predisposed to respiratory infections.
Matti Narkia

BBC NEWS | Health | Vitamin D 'is mental health aid' - 0 views

news.bbc.co.uk/...7845703.stm

2009 January BBC news health vitamin D vitamin_D mental mental_health mental_decline cognition cognitive_decline nutrition cognitive_impairment

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  • Matti Narkia on 25 Aug 09
     
    Vitamin D, found in fish and produced by sun exposure, can help stave off the mental decline that can affect people in old age, a study has suggested. UK and US researchers looked at 2,000 people aged 65 and over.
Matti Narkia

Pascal's Wager and Pandemic Influenza - Vitamin D Newsletter Nov 2005 - 0 views

www.vitamindcouncil.org/...2005-nov.shtml

2005 November vitamindcouncil newsletter vitamin D vitamin_D epidemic influenza health nutrition latitude pandemic season timing sunlight prevention supplementation dosing dosage doses

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    EPIDEMICS' TIMING DETERMINED BY LATITUDEGoing back to 1945, Hope-Simpson discovered that influenza epidemics above 30 degrees latitude in both hemispheres occurred during the six months of least solar radiation and that outbreaks in the tropics almost always occured during the rainy season. He thus concluded, "Latitude alone broadly determines the timing of the epidemics in the annual cycle, a relationship that suggests a rather direct effect of some component of solar radiation acting positively or negatively upon the virus, the human host, or their interaction." That is, something may be regularly reducing our immunity every fall and winter. In 2003 researchers confirmed that influenza epidemics in the tropics occur, with few exceptions, during the rainy season, when vitamin D levels should be falling
Matti Narkia

The antibiotic vitamin: deficiency in vitamin D may predispose people to infection | Sc... - 0 views

findarticles.com/...ai_n16865477

2006 November news vitamin D vitamin_D deficiency low_levels low levels infection influenza epidemic Cannell cathelicidin nutrition antimicrobial immunity immune_system supplementation calcitriol

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    In the July 2005 FASEB Journal, Adrian F. Gombart of the University of California, Los Angeles (UCLA) and his colleagues reported that vitamin D boosts production in white blood cells of one of the antimicrobial compounds that defends the body against germs.\n\nImmediately, Cannell says, the proverbial lightbulb went on in his head: Maybe the high doses of vitamin D that he had been prescribing to virtually all the men on his ward had boosted their natural arsenal of the antimicrobial, called cathelicidin, and protected them from flu. Cannell had been administering the vitamin D because his patients, like many other people in the industrial world, had shown a deficiency:
Matti Narkia

On the epidemiology of influenza - Virology Journal | Full text - 0 views

www.virologyj.com/29

2008 study review influenza epidemiology epidemic vitamin D vitamin_D Cannell Garland Giovannucci innate immunity innate immunity innate_immunity epidemics immune_system nutrition medline prevention supplementation doses dosing dosage February

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    On the epidemiology of influenza. Cannell JJ, Zasloff M, Garland CF, Scragg R, Giovannucci E. Virol J. 2008 Feb 25;5:29. Review. PMID: 18298852 doi:10.1186/1743-422X-5-29
Matti Narkia

Human cathelicidin antimicrobial peptide (CAMP) gene is a direct target of the vitamin ... - 0 views

www.fasebj.org/...1067

2005 July FASEB study research in_vitro vitamin D vitamin_D 1.25-dihydroxyvitamin_D calcitriol nutrition antimicrobial peptides defensins cathelicidins cathelicidin medline sepsis wound_healing monocytes VDRE innate immunity innate_immunity

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    Human cathelicidin antimicrobial peptide (CAMP) gene is a direct target of the vitamin D receptor and is strongly up-regulated in myeloid cells by 1,25-dihydroxyvitamin D3.\nGombart AF, Borregaard N, Koeffler HP.\nFASEB J. 2005 Jul;19(9):1067-77.\nPMID: 15985530
Matti Narkia

Vitamin D signaling, infectious diseases, and regulation of innate immunity. - Infect I... - 0 views

iai.asm.org/...3837

2008 September study review vitamin D vitamin_D signaling infectious diseases infectious_diseases infections nutrition medline regulation innate immunity innate immunity innate_immunity calcitriol 1.25-dihydroxyvitamin_D

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    Vitamin D signaling, infectious diseases, and regulation of innate immunity. White JH. Infect Immun. 2008 Sep;76(9):3837-43. Epub 2008 May 27. Review. PMID: 18505808 doi:10.1128/IAI.00353-08
Matti Narkia

Low vitamin d levels predict stroke in patients referred to coronary angiography. - Str... - 0 views

stroke.ahajournals.org/...2611

2008 September study research epidemiological humans vitamin D vitamin_D 25ohd calcidiol 1.25-dihydroxyvitamin_D 1.25(OH)2D calcitriol low_levels low levels inadequacy predict stroke predictive fatal nutrition medline CVD coronary angiography

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    Low vitamin d levels predict stroke in patients referred to coronary angiography.\nPilz S, Dobnig H, Fischer JE, Wellnitz B, Seelhorst U, Boehm BO, März W.\nStroke. 2008 Sep;39(9):2611-3. Epub 2008 Jul 17.\nPMID: 18635847 \ndoi: 10.1161/STROKEAHA.107.513655
Matti Narkia

Vitamin D in defense of the human immune response. - Wiley InterScience :: JOURNALS :: ... - 0 views

www3.interscience.wiley.com/...abstract

2007 November study review vitamin D vitamin_D defense immune response immune_response.immunity innate immunity innate_immunity innate adaptive adaptive_immunity macrophages tuberculosis tb nutrition medline Defensin Defensins

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    Vitamin D in defense of the human immune response.\nAdams JS, Liu PT, Chun R, Modlin RL, Hewison M.\nAnn N Y Acad Sci. 2007 Nov;1117:94-105. Epub 2007 Jul 26. Review.\nPMID: 17656563\nDOI: 10.1196/annals.1402.03
Matti Narkia

Hypovitaminosis D among rheumatology outpatients in clinical practice. - Rheumatology (... - 0 views

rheumatology.oxfordjournals.org/...1348

2008 September study research epidemiological humans rheumatology patients rheumatoid arthritis RA rheumatoid_arthritis vitamin D vitamin_D deficiency Osteoporosis Immunopathology autoimmunity Autoimmune_diseases Inflammatory Fibromyalgia

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    Hypovitaminosis D among rheumatology outpatients in clinical practice.\nMouyis M, Ostor AJ, Crisp AJ, Ginawi A, Halsall DJ, Shenker N, Poole KE.\nRheumatology (Oxford). 2008 Sep;47(9):1348-51. Epub 2008 May 22.\nPMID: 18499714 \ndoi:10.1093/rheumatology/ken203
Matti Narkia

Review: vitamin D, immunity and lupus. - Lupus. 2008 - 0 views

lup.sagepub.com/...6

2008 study review vitamin D vitamin_D lupus systemic lupus erythematosus systemic_lupus_erythematosus SLE autoimmune_diseases autoimmunity nutrition medline 25ohd calcidiol deficiency immune response immune response

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    Review: vitamin D, immunity and lupus. Cutolo M, Otsa K. Lupus. 2008;17(1):6-10. Review. PMID: 18089676 DOI: 10.1177/0961203307085879
Matti Narkia

VitD Duration of Vitamin D Synthesis in Human Skin - 0 views

zardoz.nilu.no/...VitD.html

vitamin D vitamin_D production synthesis skin cutaneous hours calculator tool season latitude date altitude weather clouds time location UVB UV radiation duration

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  • Matti Narkia on 25 Aug 09
     
    Vitamin D production in human skin occurs only when UV radiation exceeds a threshold. From simulations of UV irradiances, the VitD www page ( http://zardoz.nilu.no/~olaeng/fastrt/VitD.html) computes the daily duration of dermal vitamin D production at midday when UV radiation exceeds the required threshold. The daily duration depends on latitude, time, total ozone, clouds, aerosols, surface reflectivity and altitude all of which can be specified by the user
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