Group items tagged Winter - Nutrition

Seasonality of UV-radiation and vitamin D status at 69 degrees north. - Photochem Photo... - 1 views

Matti Narkia on 11 Dec 09

Seasonality of UV-radiation and vitamin D status at 69 degrees north. Brustad M, Edvardsen K, Wilsgaard T, Engelsen O, Aksnes L, Lund E. Photochem Photobiol Sci. 2007 Aug;6(8):903-8. Epub 2007 Jun 27. PMID: 17668121 The generally high dietary intakes of vitamin D, especially in winter, mask largely the effect of seasonal variation in UV-exposure, causing an atypical seasonal variation in vitamin D status. The UV-hour variable significantly predicted 25(OH)D levels in blood when adjusted for intakes and artificial UV-radiation exposure and sun holidays abroad.

<div class="cArrow"> </div><div class="cContentInner">Seasonality of UV-radiation and vitamin D status at 69 degrees north. Brustad M, Edvardsen K, Wilsgaard T, Engelsen O, Aksnes L, Lund E. Photochem Photobiol Sci. 2007 Aug;6(8):903-8. Epub 2007 Jun 27. PMID: 17668121 The generally high dietary intakes of vitamin D, especially in winter, mask largely the effect of seasonal variation in UV-exposure, causing an atypical seasonal variation in vitamin D status. The UV-hour variable significantly predicted 25(OH)D levels in blood when adjusted for intakes and artificial UV-radiation exposure and sun holidays abroad.</div>

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Maternal vitamin D status during pregnancy and childhood bone mass at age 9 years: a lo... - 0 views

Matti Narkia on 12 Dec 09

Maternal vitamin D status during pregnancy and childhood bone mass at age 9 years: a longitudinal study. Javaid MK, Crozier SR, Harvey NC, Gale CR, Dennison EM, Boucher BJ, Arden NK, Godfrey KM, Cooper C; Princess Anne Hospital Study Group. Lancet. 2006 Jan 7;367(9504):36-43. Erratum in: Lancet. 2006 May 6;367(9521):1486. PMID: 16399151 doi:10.1016/S0140-6736(06)67922-1 Interpretation Maternal vitamin D insufficiency is common during pregnancy and is associated with reduced bone-mineral accrual in the offspring during childhood; this association is mediated partly through the concentration of umbilical venous calcium. Vitamin D supplementation of pregnant women, especially during winter months, could lead to longlasting reductions in the risk of osteoporotic fracture in their offspring.

<div class="cArrow"> </div><div class="cContentInner">Maternal vitamin D status during pregnancy and childhood bone mass at age 9 years: a longitudinal study. Javaid MK, Crozier SR, Harvey NC, Gale CR, Dennison EM, Boucher BJ, Arden NK, Godfrey KM, Cooper C; Princess Anne Hospital Study Group. Lancet. 2006 Jan 7;367(9504):36-43. Erratum in: Lancet. 2006 May 6;367(9521):1486. PMID: 16399151 doi:10.1016/S0140-6736(06)67922-1 Interpretation Maternal vitamin D insufficiency is common during pregnancy and is associated with reduced bone-mineral accrual in the offspring during childhood; this association is mediated partly through the concentration of umbilical venous calcium. Vitamin D supplementation of pregnant women, especially during winter months, could lead to longlasting reductions in the risk of osteoporotic fracture in their offspring.</div>

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World Vitamins Online: What's Really the Best Dose of Vitamin D? - 2 views

worldvitaminsonline.blogspot.com/...ly-best-dose-of-vitamin-d.html

health vitamin D dosage

shared by World Vitamins on 17 Jan 10 - Cached

World Vitamins on 17 Jan 10

Should new vitamin D recommendations be made? According to a new study carried out at the University of California at Davis, the recommended dose of vitamin D that most experts recommend taking is too low during the winter months when there's less direct sunlight

<div class="cArrow"> </div><div class="cContentInner">Should new vitamin D recommendations be made? According to a new study carried out at the University of California at Davis, the recommended dose of vitamin D that most experts recommend taking is too low during the winter months when there's less direct sunlight</div>

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Vitamin D Newsletter September 2009 | Vitamin D and H1N1 Swine Flu - 0 views

www.vitamindcouncil.org/...min-d-and-h1n1-swine-flu.shtml

2009 September vitamindcouncil news newsletter vitamin_D H1N1 swine influenza flu nutrition

shared by Matti Narkia on 17 Nov 09 - Cached

Matti Narkia on 17 Nov 09

"This is an announcement to alert readers to a crucial email I received from a physician who has evidence vitamin D is protective against H1N1. I ask you, the reader, to contact your representatives in Washington to help protect Americans, especially children, from H1N1 before winter comes."

<div class="cArrow"> </div><div class="cContentInner">"This is an announcement to alert readers to a crucial email I received from a physician who has evidence vitamin D is protective against H1N1. I ask you, the reader, to contact your representatives in Washington to help protect Americans, especially children, from H1N1 before winter comes."</div>

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Cooling Inflammation: Inflammation and Vitamin D Deficiency - 0 views

coolinginflammation.blogspot.com/...-and-vitamin-d-deficiency.html

2009 August coolinginflammation blog_article inflammation vitamin_D deficiency nutrition TNF

shared by Matti Narkia on 01 Dec 09 - Cached

Matti Narkia on 01 Dec 09

"Let's shine some sunlight on these knowledge deficiencies: * Serum vitamin D levels have been dropping (as chronic inflammation has been increasing) over the last three decades -- has something changed in our diets? * Vitamin D deficiencies occur globally (not restricted to Northern latitudes or winter) -- related to diet? * Women are more vulnerable, because of cultural modesty in some countries, but males are still D-deficient. * A subset of people exposed to ample sunshine are still D-deficient. * Vitamin D deficient individuals also have elevated TNF. * Vitamin D deficiency and inflammation are risk factors in the same diseases. It seems that the simplest conclusion is that chronic inflammation leads to vitamin D deficiency, even though vitamin D deficiency may also contribute to inflammation."

<div class="cArrow"> </div><div class="cContentInner">"Let's shine some sunlight on these knowledge deficiencies: * Serum vitamin D levels have been dropping (as chronic inflammation has been increasing) over the last three decades -- has something changed in our diets? * Vitamin D deficiencies occur globally (not restricted to Northern latitudes or winter) -- related to diet? * Women are more vulnerable, because of cultural modesty in some countries, but males are still D-deficient. * A subset of people exposed to ample sunshine are still D-deficient. * Vitamin D deficient individuals also have elevated TNF. * Vitamin D deficiency and inflammation are risk factors in the same diseases. It seems that the simplest conclusion is that chronic inflammation leads to vitamin D deficiency, even though vitamin D deficiency may also contribute to inflammation."</div>

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What To Do If You Contract Influenza: Including H1N1 (Swine) Flu or the Common Cold - L... - 0 views

Matti Narkia on 28 Nov 09

"With daily news reports warning of a swine flu pandemic, members have besieged our health advisors with questions about what they should do to protect themselves against the H1N1 (swine flu) virus. The good news is that Life Extension® members obtain a considerable amount of immune support via the supplements they already use, especially those taking high-dose vitamin D. An important question, however, is what one should do if they develop symptoms of a viral infection? As the days grow colder, the risks of contracting common flu and cold viruses increase. Each year, flu virus infections kill around 36,000 Americans and cause miseries for millions.1 An outbreak of the swine flu virus is expected this winter. While certain supplements (and drugs) purport to shorten the duration of a viral infection, most of them fail to provide significant relief. Over the past 28 years, Life Extension® personnel have experimented with various nutrients, hormones, and drugs in order to minimize the impact of the common cold and typical flu viruses. In this article, I will reveal what has worked for me personally to ward off common cold/flu viruses and what has been validated in the scientific literature to be effective. I will also elaborate on some aggressive prescription drug strategies to consider in the event that you contract a severe form of swine flu or other type of influenza."

<div class="cArrow"> </div><div class="cContentInner">"With daily news reports warning of a swine flu pandemic, members have besieged our health advisors with questions about what they should do to protect themselves against the H1N1 (swine flu) virus. The good news is that Life Extension® members obtain a considerable amount of immune support via the supplements they already use, especially those taking high-dose vitamin D. An important question, however, is what one should do if they develop symptoms of a viral infection? As the days grow colder, the risks of contracting common flu and cold viruses increase. Each year, flu virus infections kill around 36,000 Americans and cause miseries for millions.1 An outbreak of the swine flu virus is expected this winter. While certain supplements (and drugs) purport to shorten the duration of a viral infection, most of them fail to provide significant relief. Over the past 28 years, Life Extension® personnel have experimented with various nutrients, hormones, and drugs in order to minimize the impact of the common cold and typical flu viruses. In this article, I will reveal what has worked for me personally to ward off common cold/flu viruses and what has been validated in the scientific literature to be effective. I will also elaborate on some aggressive prescription drug strategies to consider in the event that you contract a severe form of swine flu or other type of influenza."</div>

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Interior Decorator De Cluttering Tips in St Louis - 0 views

charlottesdrapes.com/...starting-de-cluttering-project

Interior Decorator in St Louis

shared by Jennifer Gray on 04 Mar 15 - No Cached

Jennifer Gray on 04 Mar 15

With its cold temperatures and gray skies, winter can infuse the blahs into even the most cheerful person. As refreshing as it sounds, we won't be opening up the windows and inviting fresh air and spring temperatures in anytime soon.

<div class="cArrow"> </div><div class="cContentInner">With its cold temperatures and gray skies, winter can infuse the blahs into even the most cheerful person. As refreshing as it sounds, we won't be opening up the windows and inviting fresh air and spring temperatures in anytime soon. </div>

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Ashwagandha, Organic Herbal Food Supplement Tablets - Haqeemi herbs - 0 views

Ashwagandha Health Wellness Herbs Mixed

shared by Haqeemi Herbs on 23 Aug 22 - No Cached

Haqeemi Herbs on 23 Aug 22

Looking for something to help you on your journey to better health and wellness? Introducing Ashwagandha, an organic herbal food supplement tablet that is power-packed with beneficial qualities. Ashwagandha is known as Indian Ginseng or winter cherry, and has been used for centuries in Ayurvedic medicine to help reduce mental and physical stress, improve sleep, and boost memory. Today, ashwagandha powder is more popular than ever and its benefits are backed by science. Clinical studies have shown that Ashwagandha can help improve memory and cognitive function in both men and women. It has also been shown to be supportive in boosting testosterone levels in men, which can lead to increased muscle mass. Ashwagandha Benefits: > May improved sleep > May reset memory > May increase height > Helpful in bone development and building of muscle How To Use: Use with milk, water or food One tablet in the morning (empty stomach) and one in the evening after meals or as advised by your general practitioner Who can and cannot take: >Suitable for Vegans >Suitable for Vegetarians >Not intended to use for under 18 years old >Always consult with a doctor or a general practitioner before using our food supplement. >Don't use if pregnant or breastfeeding >Our ashwagandha powder supplement does not treat, cure, diagnose, or prevents any disease >Do not exceed the stated dose or as directed by your GP. >Suitable for diabetic patients too- Sugar-free >HIGH POTENCY - This high-strength formulation contains 500mg of organic ashwagandha powder, shilajit, and saffron per serving. The package contains 120 capsules (a 2-month supply at the recommended dose of 2 per day). >AYURVEDIC TRADITION - Ashwagandha is believed to be used in traditional Ayurvedic practice. It has become an increasingly popular herbal supplement among men and women of different ages in the modern world. >COMBINED FOR GREATER IMPACT - The haqeemi herbs expert formulation is created to

<div class="cArrow"> </div><div class="cContentInner">Looking for something to help you on your journey to better health and wellness? Introducing Ashwagandha, an organic herbal food supplement tablet that is power-packed with beneficial qualities. Ashwagandha is known as Indian Ginseng or winter cherry, and has been used for centuries in Ayurvedic medicine to help reduce mental and physical stress, improve sleep, and boost memory. Today, ashwagandha powder is more popular than ever and its benefits are backed by science. Clinical studies have shown that Ashwagandha can help improve memory and cognitive function in both men and women. It has also been shown to be supportive in boosting testosterone levels in men, which can lead to increased muscle mass. Ashwagandha Benefits: > May improved sleep > May reset memory > May increase height > Helpful in bone development and building of muscle How To Use: Use with milk, water or food One tablet in the morning (empty stomach) and one in the evening after meals or as advised by your general practitioner Who can and cannot take: >Suitable for Vegans >Suitable for Vegetarians >Not intended to use for under 18 years old >Always consult with a doctor or a general practitioner before using our food supplement. >Don't use if pregnant or breastfeeding >Our ashwagandha powder supplement does not treat, cure, diagnose, or prevents any disease >Do not exceed the stated dose or as directed by your GP. >Suitable for diabetic patients too- Sugar-free >HIGH POTENCY - This high-strength formulation contains 500mg of organic ashwagandha powder, shilajit, and saffron per serving. The package contains 120 capsules (a 2-month supply at the recommended dose of 2 per day). >AYURVEDIC TRADITION - Ashwagandha is believed to be used in traditional Ayurvedic practice. It has become an increasingly popular herbal supplement among men and women of different ages in the modern world. >COMBINED FOR GREATER IMPACT - The haqeemi herbs expert formulation is created to</div>

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Top 10 Foods That Will Boost Your Mood - 12 views

The US communications agency has taken the first step toward lifting a ban on mobile phone calls during flights.The Federal Communications Commission (FCC) voted on Thursday to launch a public revi...

nutrition

started by Theo Walcot on 08 Apr 13 1 follow-up, last by Theo Walcot on 13 Dec 13

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Great Results after Chiropractic Care - 1 views

After my X-ray came in and having seen the curvature in my spine which the doctor said that we could have done something during childhood, I realised that it will be good to have my kids go through...

started by Barbara Smith on 15 Sep 12 no follow-up yet

Food Trend Alert: 5 Healthy Recipes For Brussels Sprouts And Cabbage - 1 views

www.leanonlife.com/ecipes-brussel-sprouts-cabbage

recipes healthyrecipes winter cholesterol nutrition

shared by amanda diaz on 27 Feb 14 - No Cached

amanda diaz on 27 Feb 14

1. Asian Cabbage Slaw This refreshing salad comes together in minutes, especially if you use a bag of pre-washed, pre-shredded cabbage. Use it as a side dish for meat, marinated with soy and garlic, or as a topping for black bean burgers or fish tacos. Healthy nutrition never tasted so refreshing and crisp.

<div class="cArrow"> </div><div class="cContentInner">1. Asian Cabbage Slaw This refreshing salad comes together in minutes, especially if you use a bag of pre-washed, pre-shredded cabbage. Use it as a side dish for meat, marinated with soy and garlic, or as a topping for black bean burgers or fish tacos. Healthy nutrition never tasted so refreshing and crisp.</div>

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Estimation of the dietary requirement for vitamin D in healthy adults. - 0 views

shared by Matti Narkia on 06 Aug 09 - Cached

Matti Narkia on 06 Aug 09

Estimation of the dietary requirement for vitamin D in healthy adults.\nCashman KD, Hill TR, Lucey AJ, Taylor N, Seamans KM, Muldowney S, Fitzgerald AP, Flynn A, Barnes MS, Horigan G, Bonham MP, Duffy EM, Strain JJ, Wallace JM, Kiely M.\nAm J Clin Nutr. 2008 Dec;88(6):1535-42.\nPMID: 19064513 [

<div class="cArrow"> </div><div class="cContentInner">Estimation of the dietary requirement for vitamin D in healthy adults.\nCashman KD, Hill TR, Lucey AJ, Taylor N, Seamans KM, Muldowney S, Fitzgerald AP, Flynn A, Barnes MS, Horigan G, Bonham MP, Duffy EM, Strain JJ, Wallace JM, Kiely M.\nAm J Clin Nutr. 2008 Dec;88(6):1535-42.\nPMID: 19064513 [</div>

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Wintertime vitamin D supplementation inhibits seasonal variation of calcitropic hormone... - 0 views

Matti Narkia on 03 Sep 09

Wintertime vitamin D supplementation inhibits seasonal variation of calcitropic hormones and maintains bone turnover in healthy men. Viljakainen HT, Väisänen M, Kemi V, Rikkonen T, Kröger H, Laitinen EK, Rita H, Lamberg-Allardt C. J Bone Miner Res. 2009 Feb;24(2):346-52. PMID: 18847321

<div class="cArrow"> </div><div class="cContentInner">Wintertime vitamin D supplementation inhibits seasonal variation of calcitropic hormones and maintains bone turnover in healthy men. Viljakainen HT, Väisänen M, Kemi V, Rikkonen T, Kröger H, Laitinen EK, Rita H, Lamberg-Allardt C. J Bone Miner Res. 2009 Feb;24(2):346-52. PMID: 18847321 </div>

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In vivo threshold for cutaneous synthesis of vitamin D3. - [J Lab Clin Med. 1989] - Pub... - 0 views

Matti Narkia on 10 Sep 09

In vivo threshold for cutaneous synthesis of vitamin D3. Matsuoka LY, Wortsman J, Haddad JG, Hollis BW. J Lab Clin Med. 1989 Sep;114(3):301-5. PMID: 2549141

<div class="cArrow"> </div><div class="cContentInner">In vivo threshold for cutaneous synthesis of vitamin D3. Matsuoka LY, Wortsman J, Haddad JG, Hollis BW. J Lab Clin Med. 1989 Sep;114(3):301-5. PMID: 2549141 </div>

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Vitamin D intake is low and hypovitaminosis D comm...[Eur J Clin Nutr. 1999] - PubMed R... - 0 views

Matti Narkia on 07 Sep 09

Vitamin D intake is low and hypovitaminosis D common in healthy 9- to 15-year-old Finnish girls. Lehtonen-Veromaa M, Möttönen T, Irjala K, Kärkkäinen M, Lamberg-Allardt C, Hakola P, Viikari J. Eur J Clin Nutr. 1999 Sep;53(9):746-51. PMID: 10509773 CONCLUSION: Hypovitaminosis D is fairly common in growing Finnish girls in the wintertime, and three months of vitamin D supplementation with 10 microg/d was insufficient in preventing hypovitaminosis D. The daily dietary vitamin D intake was insufficient (< 5 microg/d) in the majority of participants, while the calcium intake was usually sufficient.

<div class="cArrow"> </div><div class="cContentInner">Vitamin D intake is low and hypovitaminosis D common in healthy 9- to 15-year-old Finnish girls. Lehtonen-Veromaa M, Möttönen T, Irjala K, Kärkkäinen M, Lamberg-Allardt C, Hakola P, Viikari J. Eur J Clin Nutr. 1999 Sep;53(9):746-51. PMID: 10509773 CONCLUSION: Hypovitaminosis D is fairly common in growing Finnish girls in the wintertime, and three months of vitamin D supplementation with 10 microg/d was insufficient in preventing hypovitaminosis D. The daily dietary vitamin D intake was insufficient (< 5 microg/d) in the majority of participants, while the calcium intake was usually sufficient.</div>

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Geographic variation of prostate cancer mortality rates in the United States: Implicati... - 0 views

Matti Narkia on 05 Sep 09

Geographic variation of prostate cancer mortality rates in the United States: Implications for prostate cancer risk related to vitamin D. Grant WB. Int J Cancer. 2004 Sep 1;111(3):470-1; author reply 472. No abstract available. PMID: 15221981 10.1002/ijc.20220 The implications of our results and those of Tuohimaa et al.[1] include the following. Vitamin D supplementation should be undertaken in wintertime, a period when it is impossible to produce vitamin D by solar UVB exposure in northeastern states.[13] Given these new results, the optimal vitamin D intake and production and serum 25(OH)-vitamin D3 levels for prostate cancer appear to be lower than for other cancers. However, when developing guidelines for vitamin D fortification, many factors should be included in the analysis, including all of the potential health benefits and possible risks of vitamin D, as well as age, sex, residence, child-bearing status, etc.[14] Also, the suggestion that daily vitamin D3 supplement doses of 100 g (4,000 IU)/day are safe[15] should be reexamined. Finally, in terms of preventing prostate cancer, more attention should be given to diet, which has the greatest environmental impact on risk of prostate cancer, with animal products being important risk factors and vegetable products, especially onions and other allium family members, being important risk-reduction factors.[16]

<div class="cArrow"> </div><div class="cContentInner">Geographic variation of prostate cancer mortality rates in the United States: Implications for prostate cancer risk related to vitamin D. Grant WB. Int J Cancer. 2004 Sep 1;111(3):470-1; author reply 472. No abstract available. PMID: 15221981 10.1002/ijc.20220 The implications of our results and those of Tuohimaa et al.[1] include the following. Vitamin D supplementation should be undertaken in wintertime, a period when it is impossible to produce vitamin D by solar UVB exposure in northeastern states.[13] Given these new results, the optimal vitamin D intake and production and serum 25(OH)-vitamin D3 levels for prostate cancer appear to be lower than for other cancers. However, when developing guidelines for vitamin D fortification, many factors should be included in the analysis, including all of the potential health benefits and possible risks of vitamin D, as well as age, sex, residence, child-bearing status, etc.[14] Also, the suggestion that daily vitamin D3 supplement doses of 100 g (4,000 IU)/day are safe[15] should be reexamined. Finally, in terms of preventing prostate cancer, more attention should be given to diet, which has the greatest environmental impact on risk of prostate cancer, with animal products being important risk factors and vegetable products, especially onions and other allium family members, being important risk-reduction factors.[16]</div>

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Vitamin D fortification as public health policy: significant improvement in vitamin D s... - 0 views

Matti Narkia on 22 Sep 09

Vitamin D fortification as public health policy: significant improvement in vitamin D status in young Finnish men. Laaksi IT, Ruohola JP, Ylikomi TJ, Auvinen A, Haataja RI, Pihlajamäki HK, Tuohimaa PJ. Eur J Clin Nutr. 2006 Aug;60(8):1035-8. Epub 2006 Feb 15. PMID: 16482069

<div class="cArrow"> </div><div class="cContentInner">Vitamin D fortification as public health policy: significant improvement in vitamin D status in young Finnish men. Laaksi IT, Ruohola JP, Ylikomi TJ, Auvinen A, Haataja RI, Pihlajamäki HK, Tuohimaa PJ. Eur J Clin Nutr. 2006 Aug;60(8):1035-8. Epub 2006 Feb 15. PMID: 16482069 </div>

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Are sunlight deprivation and influenza epidemics associated with the onset of acute leu... - 0 views

Matti Narkia on 22 Sep 09

Are sunlight deprivation and influenza epidemics associated with the onset of acute leukemia? Timonen T, Näyhä S, Koskela T, Pukkala E. Haematologica. 2007 Nov;92(11):1553-6. PMID: 18024404 doi:10.3324/haematol.10799 Month of diagnosis of 7,423 cases of acute leukemia (AL) in Finland during 1964-2003 were linked with data on influenza and solar radiation. Acute myeloblastic leukemia (AML) showed the highest risk in the dark season. During the light season, the incidence decreased by 58% (95% confidence interval, 16-79%) per 1,000 kJ/m2/d increase of solar radiation. Independent of solar radiation, AML increased by 9% (95% confidence interval, 0-19%) during influenza epidemics. Reoccurring at the same time annually, darkness-related vitamin D deficiency and influenza could cause successive and co-operative mutations leading to AL with a short latency.

<div class="cArrow"> </div><div class="cContentInner">Are sunlight deprivation and influenza epidemics associated with the onset of acute leukemia? Timonen T, Näyhä S, Koskela T, Pukkala E. Haematologica. 2007 Nov;92(11):1553-6. PMID: 18024404 doi:10.3324/haematol.10799 Month of diagnosis of 7,423 cases of acute leukemia (AL) in Finland during 1964-2003 were linked with data on influenza and solar radiation. Acute myeloblastic leukemia (AML) showed the highest risk in the dark season. During the light season, the incidence decreased by 58% (95% confidence interval, 16-79%) per 1,000 kJ/m2/d increase of solar radiation. Independent of solar radiation, AML increased by 9% (95% confidence interval, 0-19%) during influenza epidemics. Reoccurring at the same time annually, darkness-related vitamin D deficiency and influenza could cause successive and co-operative mutations leading to AL with a short latency.</div>

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My Synthetic Turf Perth Lawn Investment - 2 views

Thanks to GreenPlanetGrass synthetic turf Perth, I was able to transform my bare and dull lawn into the greenest and lushest lawn in our neighbourhood thanks to their synthetic turf Perth. Not only...

Synthetic courts Artificial grass Tennis acrylic surfaces

started by Jean Peterson on 07 Jun 11 no follow-up yet

Plasma calcidiol, season, and serum parathyroid hormone concentrations in healthy elder... - 0 views

Matti Narkia on 11 Oct 09

Plasma calcidiol, season, and serum parathyroid hormone concentrations in healthy elderly men and women. Dawson-Hughes B, Harris SS, Dallal GE. Am J Clin Nutr. 1997 Jan;65(1):67-71. PMID: 8988915 Plasma calcidiol and serum PTH concentrations were inversely related, with PTH rising slowly as calcidiol concentrations declined below 110 nmol/L (95 CI: 60, 168 nmol/L). More than 90% of the men and women had calcidiol concentrations below this value in the wintertime. The high prevalence of lower wintertime calcidiol values may increase risk of bone loss in elderly men and women.

<div class="cArrow"> </div><div class="cContentInner">Plasma calcidiol, season, and serum parathyroid hormone concentrations in healthy elderly men and women. Dawson-Hughes B, Harris SS, Dallal GE. Am J Clin Nutr. 1997 Jan;65(1):67-71. PMID: 8988915 Plasma calcidiol and serum PTH concentrations were inversely related, with PTH rising slowly as calcidiol concentrations declined below 110 nmol/L (95 CI: 60, 168 nmol/L). More than 90% of the men and women had calcidiol concentrations below this value in the wintertime. The high prevalence of lower wintertime calcidiol values may increase risk of bone loss in elderly men and women.</div>

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