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Suárez-Ortegón MF, Arbeláez A, Moreno-Navarrete JM, Ortega-Ávila JG, Mosquera M, Fernández-Real JM. Soluble Transferrin Receptor, Antioxidant Status and Cardiometabolic Risk in Apparently Healthy Individuals. Antioxidants (Basel) 2022; 12:antiox12010019. [PMID: 36670881 PMCID: PMC9854855 DOI: 10.3390/antiox12010019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/06/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Body iron excess appears to be related to insulin resistance and cardiometabolic risk and increased oxidative stress might be involved in this relationship. Very few studies have described the association between soluble transferrin receptor (sTfR) levels and cardiometabolic risk in the general population or antioxidant status. There were 239 subjects (20−65 years old) included in this cross-sectional study. Linear regressions adjusting for BMI, menopausal status, insulin resistance (HOMA-IR), physical inactivity, alcohol intake and subclinical/chronic inflammation were used to describe the association between sTfR, total antioxidant capacity (TAC), and measures of cardio-metabolic risk. sTfR levels were positively associated with TAC in men (βeta [95% confidence interval ]: 0.31 [0.14 to 0.48]) and women (βeta = 0.24 [0.07 to 0.40]) in non-adjusted and adjusted models (p < 0.05). In men, sTfR levels were inversely associated with waist circumference (βeta [95% confidence interval]: −1.12 [−2.30 to −0.22]) and fasting glucose (−2.7 (−4.82 to −0.57), and positively with LDL cholesterol (12.41 (6.08 to 18.57) before and after adjustments for confounding variables. LDL cholesterol had a significant and positive association with TAC in non-adjusted and adjusted models in men (p < 0.05). sTfR levels are significantly associated with antioxidant status and a few specific cardio-metabolic risk variables, independently of covariates that included serum ferritin and hepcidin. This might imply that iron biomarkers in regard to cardiometabolic risk reflect physiological contexts other than iron metabolism.
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Affiliation(s)
- Milton Fabian Suárez-Ortegón
- Departamento de Alimentación y Nutrición, Facultad de Ciencias de La Salud, Pontificia Universidad Javeriana Seccional Cali, Cali 760030, Colombia
- Nutrition Group, Universidad del Valle, Cali 760030, Colombia
- Correspondence: (M.F.S.-O.); (J.M.F.-R.); Tel.: +57-321-82-00 (M.F.S.-O.); +34-972-940-200 (J.M.F.-R.)
| | - Alejandra Arbeláez
- Nutrition Group, Universidad del Valle, Cali 760030, Colombia
- Physiological Sciences Department, Universidad del Valle, Cali 760030, Colombia
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d’Investigació Biomèdica de Girona (IdIBGi), 28029 Madrid, Spain
| | - José Guillermo Ortega-Ávila
- Nutrition Group, Universidad del Valle, Cali 760030, Colombia
- Departamento de Ciencias Básicas, Facultad de Ciencias de La Salud, Pontificia Universidad Javeriana Seccional Cali, Cali 760030, Colombia
| | - Mildrey Mosquera
- Nutrition Group, Universidad del Valle, Cali 760030, Colombia
- Physiological Sciences Department, Universidad del Valle, Cali 760030, Colombia
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d’Investigació Biomèdica de Girona (IdIBGi), 28029 Madrid, Spain
- CIBEROBN (CB06/03/010), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Correspondence: (M.F.S.-O.); (J.M.F.-R.); Tel.: +57-321-82-00 (M.F.S.-O.); +34-972-940-200 (J.M.F.-R.)
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