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Sullivan KV, Assantuh Y, Grigoryan R, Costas-Rodríguez M, Bolea-Fernandez E, Lapauw B, Van Laecke S, Vanhaecke F. Serum Mg Isotopic Composition Reveals That Mg Dyshomeostasis Remains in Type 1 Diabetes despite the Resolution of Hypomagnesemia. Int J Mol Sci 2023; 24:15683. [PMID: 37958667 PMCID: PMC10647222 DOI: 10.3390/ijms242115683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/23/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Hypomagnesemia was historically prevalent in individuals with type 1 diabetes mellitus (T1DM), but contemporary results indicate an incidence comparable to that in the general population, likely due to improved treatment in recent decades, resulting in better glycemic control. However, a recent study found a significant difference between the serum Mg isotopic composition of T1DM individuals and controls, indicating that disruptions to Mg homeostasis persist. Significant deviations were also found in samples taken one year apart. To investigate whether the temporal variability in serum Mg isotopic composition is linked to the transient impact of administered insulin, Mg isotope ratios were determined in serum from 15 T1DM individuals before and one hour after insulin injection/meal consumption using multi-collector inductively coupled plasma-mass spectrometry. Consistent with results of the previous study, significant difference in the serum Mg isotopic composition was found between T1DM individuals and 10 sex-matched controls. However, the average difference between pre- and post-insulin injection/meal T1DM samples of 0.05 ± 0.13‱ (1SD) was not significant. No difference was observed for controls before (-0.12 ± 0.16‱) and after the meal (-0.10 ± 0.13‱) either, suggesting a lack of a postprandial Mg isotopic response within one hour of food consumption, and that the timing of the most recent meal may not require controlling for when determining serum Mg isotopic composition.
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Affiliation(s)
- Kaj Vaughan Sullivan
- Atomic and Mass Spectrometry—A&MS Research Unit, Department of Chemistry, Ghent University, 9000 Ghent, Belgium; (K.V.S.)
| | - Yasmina Assantuh
- Atomic and Mass Spectrometry—A&MS Research Unit, Department of Chemistry, Ghent University, 9000 Ghent, Belgium; (K.V.S.)
| | - Rosa Grigoryan
- The Isotoparium, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
| | - Marta Costas-Rodríguez
- Atomic and Mass Spectrometry—A&MS Research Unit, Department of Chemistry, Ghent University, 9000 Ghent, Belgium; (K.V.S.)
- Centro de Investigación Mariña, Departamento de Química Analítica y Alimentaria, Grupo QA2, Universidade de Vigo, 36310 Vigo, Spain
| | - Eduardo Bolea-Fernandez
- Atomic and Mass Spectrometry—A&MS Research Unit, Department of Chemistry, Ghent University, 9000 Ghent, Belgium; (K.V.S.)
- Department of Analytical Chemistry, Aragón Institute of Engineering Research (I3A), University of Zaragoza, 50009 Zaragoza, Spain
| | - Bruno Lapauw
- Department of Endocrinology, Ghent University Hospital, 9000 Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, 9000 Ghent, Belgium
| | - Steven Van Laecke
- Renal Division, Department of Internal Medicine and Pediatrics, Ghent University Hospital, 9000 Ghent, Belgium
| | - Frank Vanhaecke
- Atomic and Mass Spectrometry—A&MS Research Unit, Department of Chemistry, Ghent University, 9000 Ghent, Belgium; (K.V.S.)
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le Goff S, Godin JP, Albalat E, Nieves JMR, Balter V. Magnesium stable isotope composition, but not concentration, responds to obesity and early insulin-resistant conditions in minipig. Sci Rep 2022; 12:10941. [PMID: 35768618 PMCID: PMC9243132 DOI: 10.1038/s41598-022-14825-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 06/13/2022] [Indexed: 11/29/2022] Open
Abstract
Hypomagnesemia is frequently associated with type 2 diabetes and generally correlates with unfavorable disease progression, but the magnesium status in pre-diabetic conditions remains unclear. Here, the magnesium metabolism is scrutinized in a minipig model of obesity and insulin resistance by measuring variations of the metallome—the set of inorganic elements—and the magnesium stable isotope composition in six organs of lean and obese minipigs raised on normal and Western-type diet, respectively. We found that metallomic variations are most generally insensitive to lean or obese phenotypes. The magnesium stable isotope composition of plasma, liver, kidney, and heart in lean minipigs are significantly heavier than in obese minipigs. For both lean and obese minipigs, the magnesium isotope composition of plasma and liver were negatively correlated to clinical phenotypes and plasma lipoproteins concentration as well as positively correlated to hyperinsulinemic-euglycemic clamp output. Because the magnesium isotope composition was not associated to insulin secretion, our results suggest that it is rather sensitive to whole body insulin sensitivity, opening perspectives to better comprehend the onset of insulin-resistant diabetic conditions.
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Affiliation(s)
- Samuel le Goff
- Laboratoire de Géologie de Lyon, ENS de Lyon, Université de Lyon, CNRS, Lyon, France
| | - Jean-Philippe Godin
- Nestlé Research, Institute of Food Safety and Analytical Sciences, Lausanne, Switzerland
| | - Emmanuelle Albalat
- Laboratoire de Géologie de Lyon, ENS de Lyon, Université de Lyon, CNRS, Lyon, France
| | | | - Vincent Balter
- Laboratoire de Géologie de Lyon, ENS de Lyon, Université de Lyon, CNRS, Lyon, France.
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