Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/50730
Título: Vitamin D deficiency and high serum levels of vitamin A increase the risk of osteoporosis evaluated by Quantitative Ultrasound Measurements (QUS) in postmenopausal Spanish women
Autores/as: Mata-Granados, J. M.
Cuenca-Acevedo, R.
Luque de Castro, M. D.
Sosa, M. 
Quesada-Gómez, J. M.
Clasificación UNESCO: 32 Ciencias médicas
320108 Ginecología
Palabras clave: Bone-Mineral Density
Hypervitaminosis-A
D Insufficiency
Retinol Levels
Hip-Fractures, et al.
Fecha de publicación: 2010
Publicación seriada: Clinical biochemistry 
Resumen: Objectives: Association between vitamin D deficiency and excess of vitamin A as a potential risk factor of osteoporosis and fracture has been evaluated.Design and methods: 232 healthy postmenopausal women were studied. Serum parameters were analyzed by standard methods and fat-soluble vitamins by an own HPLC method. QUS measurement of the calcaneal bone was carried out by Sahara.Results: 124 patients were considered non-osteoporotic and 101 (44.9%) were osteoporotic. The prevalence of high serum levels of retinol was 36.4% and vitamin D deficiency was 70.1%. 60.4% of women with vitamin D deficiency have high serum levels of retinol.In the whole population, the increased risk of osteoporosis was up to three times higher for the highest retinol quintile, as compared with the lowest retinol quintile. Whereas in women with vitamin D deficiency the risk of osteoporosis increased was up 5 times higher than women in the lowest quintile of retinol.Conclusions: Our results show that high retinol levels together with vitamin D deficiency are hitherto an overlooked risk factor for osteoporosis.
URI: http://hdl.handle.net/10553/50730
ISSN: 0009-9120
DOI: 10.1016/j.clinbiochem.2010.06.001
Fuente: Clinical Biochemistry[ISSN 0009-9120],v. 43, p. 1064-1068
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