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Navarro-Valverde C, Caballero-Villarraso J, Mata-Granados JM, Casado-Díaz A, Sosa-Henríquez M, Malouf-Sierra J, Nogués-Solán X, Rodríguez-Mañas L, Cortés-Gil X, Delgadillo-Duarte J, Quesada-Gómez JM. High Serum Retinol as a Relevant Contributor to Low Bone Mineral Density in Postmenopausal Osteoporotic Women. Calcif Tissue Int 2018; 102:651-656. [PMID: 29294148 DOI: 10.1007/s00223-017-0379-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 12/27/2017] [Indexed: 10/18/2022]
Abstract
There is controversial information about the impact of vitamin A on bone. Some epidemiological studies show that excessive intake of vitamin A, or an excess of serum vitamin A, has related with adverse impact on bone mass; however, other studies did not find these links, and some authors have proposed that this vitamin might promote a better bone health. The present work aims to contribute to clarify the real role of vitamin A in bone tissue. For this purpose, a cross-sectional study of 154 osteoporotic non-treated postmenopausal women (> 65 years old) was carried out. Bone mineral density (BMD) was measured by dual-energy X-ray absorptiometry. We assessed concentrations of serum retinol, osteocalcin, parathyroid hormone, alkaline phosphatase, calcium, and phosphorus. We also studied demographic and anthropometric parameters. Spearman's correlations between retinol levels and other variables found negative correlations with BMD in both lumbar spine (R = - 0.162, P < 0.01) and femoral neck (R = - 0.182, P < 0.01), as well as alkaline phosphatase (R = - 0.110; P < 0.05) and phosphorus (R = - 0.110; P < 0.05). A positive correlation between retinol and fertile window was observed (R = 0.158; P < 0.01). After multivariable adjustment, we still found a negative correlation between serum retinol and BMD, both at the lumbar spine (R = - 0.210; P < 0.01) and at the femoral neck (R = - 0.324, P < 0.001). It is concluded that elevated serum-retinol levels are associated with an increased risk of low bone mass and thus with osteoporotic fractures. Therefore, osteoporosis-risk assessment should include quantification of serum metabolite of vitamin A.
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Affiliation(s)
| | - Javier Caballero-Villarraso
- IMIBIC (Instituto Maimónides de Investigación Biomédica de Córdoba)/Hospital Universitario Reina Sofía/ Universidad de Córdoba & RETICEF, CIBERFES (ISCIII), Córdoba, Spain.
| | - José M Mata-Granados
- IMIBIC (Instituto Maimónides de Investigación Biomédica de Córdoba)/Hospital Universitario Reina Sofía/ Universidad de Córdoba & RETICEF, CIBERFES (ISCIII), Córdoba, Spain
| | - Antonio Casado-Díaz
- IMIBIC (Instituto Maimónides de Investigación Biomédica de Córdoba)/Hospital Universitario Reina Sofía/ Universidad de Córdoba & RETICEF, CIBERFES (ISCIII), Córdoba, Spain
| | | | - Jorge Malouf-Sierra
- Servicio de Medicina Interna, Hospital de la Santa Creu i Sant Pau & RETICEF (ISCIII), Barcelona, Spain
| | - Xavier Nogués-Solán
- Servicio de Medicina Interna (Hospital del Mar Medical Research Institute), Universitat Autònoma de Barcelona & RETICEF, CIBERFES (ISCIII), Barcelona, Spain
| | - Leocadio Rodríguez-Mañas
- Fundación para la Investigación Biomédica, Servicio de Geriatría, Hospital Universitario de Getafe & RETICEF, CIBERFES (ISCIII), Madrid, Spain
| | | | - Joaquín Delgadillo-Duarte
- Departament de Farmacologia, de Terapèutica i de Toxicologia, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - José Manuel Quesada-Gómez
- IMIBIC (Instituto Maimónides de Investigación Biomédica de Córdoba)/Hospital Universitario Reina Sofía/ Universidad de Córdoba & RETICEF, CIBERFES (ISCIII), Córdoba, Spain
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