Results 131 to 140 of about 2,603 (174)
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International Journal for Vitamin and Nutrition Research, 1999
Aim: The aim of the present study was to measure concentrations of vitamin D metabolites and intact parathyroid hormone (iPTH) serum concentrations and an urinary bone resorption marker in two groups of elderly subjects, who differed markedly in their sedentary status and seasonality.
R Theiler, H B Stähelin, A Tyndall
exaly +4 more sources
Aim: The aim of the present study was to measure concentrations of vitamin D metabolites and intact parathyroid hormone (iPTH) serum concentrations and an urinary bone resorption marker in two groups of elderly subjects, who differed markedly in their sedentary status and seasonality.
R Theiler, H B Stähelin, A Tyndall
exaly +4 more sources
Effect of Clodronate on Calcidiol Serum Levels in Women With Breast Cancer
Calcified Tissue International, 1997María Teresa Del Campo, M E Martínez
exaly +3 more sources
The Journal of Steroid Biochemistry and Molecular Biology, 2005
Epidemiological studies suggest that serum calcidiol (25(OH)-Vitamin D3) seems to be associated with several cancers including prostate cancer. We have made several experimental studies in order to clarify the mechanism(s) involved in the association.
P, Tuohimaa +7 more
openaire +2 more sources
Epidemiological studies suggest that serum calcidiol (25(OH)-Vitamin D3) seems to be associated with several cancers including prostate cancer. We have made several experimental studies in order to clarify the mechanism(s) involved in the association.
P, Tuohimaa +7 more
openaire +2 more sources
A synthesis of 17-epi-calcidiol
Tetrahedron Letters, 2004Abstract The first synthetic approach to 17- epi -calcidiol 4 and congeners is presented. Key steps of the synthesis involve Pd-catalyzed reaction of the androst-16-ene derivative 6 with alkyl diazoacetates producing the respective cyclopropane derivatives 5 , and lithium in liquid ammonia reduction of 5 leading to 17α-pregnane-20 ...
Alicja Kurek-Tyrlik +3 more
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Intraocular calcidiol: Uncovering a role for vitamin D in the eye
The Journal of Steroid Biochemistry and Molecular Biology, 2020Vitamin D has emerged as a potentially important molecule in ophthalmology. To date, all ophthalmic data pertaining to vitamin D has been restricted primarily to tear and serum analysis in human patients. Considering the isolated nature of the eye, we sought to determine the presence of intraocular vitamin D in ocular disease.25-Hydroxyvitamin D3 (25 ...
Jacob, Rullo +12 more
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Low calcidiol levels and risk of progression of aortic calcification
Osteoporosis International, 2011In this observational study, we found a positive relationship between low calcidiol levels and the risk of aortic calcification progression. A 10-ng/mL increase of calcidiol was associated with a decrease in the risk of progression by 44%. This figure was higher than that observed if we increased age by 10 years.The aim of this study was to investigate
M, Naves-Díaz +5 more
openaire +4 more sources
Calcidiol and PTH Levels in Women Attending an Osteoporosis Program
Calcified Tissue International, 1999We performed a retrospective study of 237 patients attending a specialty osteoporosis practice. Secondary causes for reduced bone mineral density (BMD) were evaluated in 196 postmenopausal women and 41 premenopausal women; mean age was 56 +/- 13.8 years (mean +/- SD).
S T, Haden +4 more
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Comparison of the prevalence of calcidiol insufficiency in predialysis and osteoporotic populations
International Urology and Nephrology, 2008Calcidiol insufficiency is highly prevalent in chronic kidney disease (CKD) and osteoporotic patients. We assessed and compared calcidiol levels in these two groups from the same geographical area to differentiate environmental factors from characteristics related to CKD.We measured calcidiol levels in 160 predialysis (group 1) and 53 osteoporotic ...
Josée, Bouchard +8 more
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Bone loss after cardiac transplantation: Effects of calcium, calcidiol and monofluorophosphate
Osteoporosis International, 1993Of 203 patients who underwent cardiac transplantation and were given long-term treatment with cyclosporine and 0.3 mg/kg per day prednisone, 123 were studied prospectively for at least 6 months and 46 for up to 2 years to evaluate the effects on lumbar bone mineral density (BMD) and calcium metabolism of a combined therapy with calcium, calcidiol and ...
E, Meys +4 more
openaire +2 more sources
Scandinavian Journal of Clinical and Laboratory Investigation, 1997
The serum concentration of vitamin D will only give information about the recent exposure to either nutritional vitamin D or to recent vitamin D production in the skin. Within hours vitamin D is removed from the circulation and reappears again a few hours later as 25(OH)D. Measurements of vitamin D therefore are not useful to judge the vitamin D status
H, Schmidt-Gayk, R, Bouillon, H J, Roth
openaire +2 more sources
The serum concentration of vitamin D will only give information about the recent exposure to either nutritional vitamin D or to recent vitamin D production in the skin. Within hours vitamin D is removed from the circulation and reappears again a few hours later as 25(OH)D. Measurements of vitamin D therefore are not useful to judge the vitamin D status
H, Schmidt-Gayk, R, Bouillon, H J, Roth
openaire +2 more sources