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obesity, inflammation, subclinical iron deficiency

María Fernanda Mujica-Coopman, Alex Brito, Daniel López de Romaña, Fernando Pizarro, Manuel Olivares
BACKGROUND: The prevalence of obesity has increased at an alarming rate worldwide. Some studies have observed an association between iron (Fe) deficiency (ID) and obesity, however more research is needed. OBJECTIVE: To assess whether body mass index (BMI) is associated with both Fe absorption and Fe status. METHODS: A cross sectional sample of 318 Chilean childbearing age women was studied. The women received either a single dose of 0.5mg of Fe (n=137, group 1) or 3mg of Fe plus ascorbic acid (1:2 molar ratio) (n=181, group 2), both as FeSO4 with labeled radioisotopes...
April 2015: Journal of Trace Elements in Medicine and Biology
Pía Villarroel H, Miguel Arredondo O, Manuel Olivares G
Recent evidence suggests that obesity-related inflammation may play a central role in hepcidin regulation. Hepcidin is a key regulator ofiron homeostasis and has now been suggested as a central mediator ofiron metabolism disorders involved in the pathogenesis of anemia of chronic disease. In this review, we focus on subclinical inflammation in obesity and its effect on hepcidin levels, as the most plausible explanation for the relationship between anemia of chronic disease and obesity.
July 2013: Revista Médica de Chile
Ana C Cepeda-Lopez, Isabelle Aeberli, Michael B Zimmermann
Increasing obesity is a major global health concern while at the same time iron-deficiency anemia remains common worldwide. Although these two conditions represent opposite ends of the spectrum of over- and under-nutrition, they appear to be linked: overweight individuals are at higher risk of iron deficiency than normal-weight individuals. Potential explanations for this association include dilutional hypoferremia, poor dietary iron intake, increased iron requirements, and/or impaired iron absorption in obese individuals...
October 2010: International Journal for Vitamin and Nutrition Research. Journal International de Vitaminologie et de Nutrition
I Aeberli, R F Hurrell, M B Zimmermann
BACKGROUND: Obesity increases the risk for iron deficiency, but the underlying mechanism is unclear. It is possible that overweight individuals may have lower dietary iron intake and/or bioavailability. Alternatively, obesity-related inflammation may increase hepcidin concentrations and reduce iron availability. Circulating hepcidin levels have not been compared in normal weight vs overweight individuals. OBJECTIVE: The objective of this study was to compare iron status, dietary iron intake and bioavailability, as well as circulating levels of hepcidin, leptin and interleukin-6 (IL-6), in overweight vs normal weight children...
October 2009: International Journal of Obesity: Journal of the International Association for the Study of Obesity
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