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Daily duration of vitamin D synthesis in human skin with relation to latitude, total ozone, altitude, ground cover, aerosols and cloud thickness.
Engelsen O, Brustad M, Aksnes L, Lund E. Engelsen O, et al. Among authors: aksnes l. Photochem Photobiol. 2005 Nov-Dec;81(6):1287-90. doi: 10.1562/2004-11-19-RN-375. Photochem Photobiol. 2005. PMID: 16354110
Increase in serum 25-hydroxyvitamin-D3 in humans after sunbed exposures compared to previtamin D3 synthesis in vitro.
Orlova T, Moan J, Lagunova Z, Aksnes L, Terenetskaya I, Juzeniene A. Orlova T, et al. Among authors: aksnes l. J Photochem Photobiol B. 2013 May 5;122:32-6. doi: 10.1016/j.jphotobiol.2013.03.006. Epub 2013 Mar 28. J Photochem Photobiol B. 2013. PMID: 23591142
Sunbeds as vitamin D sources.
Moan J, Lagunova Z, Cicarma E, Aksnes L, Dahlback A, Grant WB, Porojnicu AC. Moan J, et al. Among authors: aksnes l. Photochem Photobiol. 2009 Nov-Dec;85(6):1474-9. doi: 10.1111/j.1751-1097.2009.00607.x. Photochem Photobiol. 2009. PMID: 19788534
Seasonality of UV-radiation and vitamin D status at 69 degrees north.
Brustad M, Edvardsen K, Wilsgaard T, Engelsen O, Aksnes L, Lund E. Brustad M, et al. Among authors: aksnes l. Photochem Photobiol Sci. 2007 Aug;6(8):903-8. doi: 10.1039/b702947k. Epub 2007 Jun 27. Photochem Photobiol Sci. 2007. PMID: 17668121
The mean 25(OH)D values were significantly higher at the end of the summer and in December, 2004 and varied from 42.0 nmol L(-1) in October, 2004 and April, 2005 to around 47 nmol L(-1) in December, 2004 and September, 2005. ...However, for subjects with lower 25(OH …
The mean 25(OH)D values were significantly higher at the end of the summer and in December, 2004 and varied from 42.0 nmol L(-1) in O …
Sun beds and cod liver oil as vitamin D sources.
Porojnicu AC, Bruland OS, Aksnes L, Grant WB, Moan J. Porojnicu AC, et al. Among authors: aksnes l. J Photochem Photobiol B. 2008 May 29;91(2-3):125-31. doi: 10.1016/j.jphotobiol.2008.02.007. Epub 2008 Feb 29. J Photochem Photobiol B. 2008. PMID: 18417354 Clinical Trial.
The initial serum 25(OH)D(3) level was different among the volunteers (40-100 nmol/L). Within eight weeks after the last exposure the 25(OH)D(3) level decreased to the initial value in all volunteers irrespective of vitamin D supplementation or not....
The initial serum 25(OH)D(3) level was different among the volunteers (40-100 nmol/L). Within eight weeks after the last exposure the …
The solar UV radiation level needed for cutaneous production of vitamin D3 in the face. A study conducted among subjects living at a high latitude (68 degrees N).
Edvardsen K, Brustad M, Engelsen O, Aksnes L. Edvardsen K, et al. Among authors: aksnes l. Photochem Photobiol Sci. 2007 Jan;6(1):57-62. doi: 10.1039/b613263d. Epub 2006 Nov 10. Photochem Photobiol Sci. 2007. PMID: 17200737
On an individual basis, however, we found indications that subjects with very low initial concentration of 25(OH)D (<30 nmol l(-1)) seemed to respond to UV radiation as early as in the beginning of March. ...
On an individual basis, however, we found indications that subjects with very low initial concentration of 25(OH)D (<30 nmol l(-1) …
Vitamin D status of middle-aged women at 65-71 degrees N in relation to dietary intake and exposure to ultraviolet radiation.
Brustad M, Alsaker E, Engelsen O, Aksnes L, Lund E. Brustad M, et al. Among authors: aksnes l. Public Health Nutr. 2004 Apr;7(2):327-35. doi: 10.1079/PHN2003536. Public Health Nutr. 2004. PMID: 15003141
RESULTS: Median plasma 25(OH)D concentration for the whole group was 55.0 nmol l(-1) (range 8.1-142.8 nmol l(-1)). Vitamin D intake was a significant predictor of 25(OH)D status (P=0.0003). ...The prevalence of moderate hypovitaminosis D was highest in January-Febru …
RESULTS: Median plasma 25(OH)D concentration for the whole group was 55.0 nmol l(-1) (range 8.1-142.8 nmol l(-1)). Vitamin D i …
Effect of vitamin D supplementation and ultraviolet B exposure on serum 25-hydroxyvitamin D concentrations in healthy volunteers: a randomized, crossover clinical trial.
Lagunova Z, Porojnicu AC, Aksnes L, Holick MF, Iani V, Bruland OS, Moan J. Lagunova Z, et al. Among authors: aksnes l. Br J Dermatol. 2013 Aug;169(2):434-40. doi: 10.1111/bjd.12349. Br J Dermatol. 2013. PMID: 23551243 Clinical Trial.
RESULTS: The oral supplementation with vitamin D3 resulted in a mean (SEM) serum 25-hydroxyvitamin D [25(OH)D] increase of 25·3 (5·4) nmol L(-1) . A similar increase, 19·8 (5·4) nmol L(-1) , was observed after simulated summer UV exposure. At the end of the study, s …
RESULTS: The oral supplementation with vitamin D3 resulted in a mean (SEM) serum 25-hydroxyvitamin D [25(OH)D] increase of 25·3 (5·4) nmol …
Faecal elastase-1 and fat-soluble vitamin profiles in patients with cystic fibrosis in Western Norway.
Dorlöchter L, Aksnes L, Fluge G. Dorlöchter L, et al. Among authors: aksnes l. Eur J Nutr. 2002 Aug;41(4):148-52. doi: 10.1007/s00394-002-0369-z. Eur J Nutr. 2002. PMID: 12242582
Median value for vitamin E in patients with exocrine pancreatic insufficiency at diagnosis was low (3.6 mg/L). Supplementation of pancreatic enzymes and vitamins normalised profiles in this group at follow-up. ...
Median value for vitamin E in patients with exocrine pancreatic insufficiency at diagnosis was low (3.6 mg/L). Supplementation of pan …
Change in plasma levels of vitamin D after consumption of cod-liver and fresh cod-liver oil as part of the traditional north Norwegian fish dish "Mølje".
Brustad M, Sandanger T, Wilsgaard T, Aksnes L, Lund E. Brustad M, et al. Among authors: aksnes l. Int J Circumpolar Health. 2003 Mar;62(1):40-53. doi: 10.3402/ijch.v62i1.17527. Int J Circumpolar Health. 2003. PMID: 12725340 Clinical Trial.

RESULTS: Among the 33 participating subjects, 69.7% had baseline plasma 25(OH)D concentrations below 50 nmol/l and for one-quarter of the subjects, they were < 37.5 nmol/l The participants who acknowledged taking cod-liver oil supplements had significantly higher

RESULTS: Among the 33 participating subjects, 69.7% had baseline plasma 25(OH)D concentrations below 50 nmol/l and for one-quarter of …
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