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@ARTICLE{ShugaaAddin:303978,
author = {N. Shugaa Addin and C. Schuppert and P. Full$^*$ and H.
Brenner$^*$ and M. Dörr and T. Keil and R. von Krüchten
and F. G. Meinel and T. Niendorf and T. Pischon and B.
Schmidt and J. Schulz-Menger and J. Schwichtenberg and H.
Völzke and S. N. Willich and F. Bamberg and A. Peters and
C. L. Schlett and S. Rospleszcz},
title = {{M}agnesium {D}epletion, {M}etabolic {I}mpairment, and
{C}ardiac {A}lterations: {T}he {NAKO}-{MRI} {S}tudy with
{M}endelian {R}andomization.},
journal = {The journal of clinical endocrinology $\&$ metabolism},
volume = {nn},
issn = {0368-1610},
address = {Oxford},
publisher = {Oxford University Press},
reportid = {DKFZ-2025-01747},
pages = {nn},
year = {2025},
note = {epub},
abstract = {Magnesium deficiency may contribute to subclinical cardiac
changes, particularly metabolic diastolic cardiomyopathy.To
investigate the association between magnesium depletion,
metabolic syndrome (MetS), and MRI-derived cardiac
alterations in a population-based sample.We
cross-sectionally analyzed N = 9568 participants from the
baseline examination of the German National Cohort (NAKO)
who underwent whole-body MRI. Associations of serum
magnesium and magnesium depletion score (MDS) with MetS and
cardiac alterations were assessed using multivariable
logistic and linear regression, respectively. Two-sample
Mendelian Randomization was performed to evaluate the
potential causal relationship between serum magnesium and
MRI-derived cardiac parameters.Our analysis revealed no
correlation between serum magnesium and MDS (Spearman's rho
= 0.065; p < 0.001). A 1-SD increase in serum magnesium was
associated with lower MetS prevalence (OR 0.93 $[95\%$ CI:
0.88, 0.99]) and reduced left and right ventricular systolic
and diastolic volumes. Higher MDS, indicating magnesium
deficiency, was linked to increased MetS prevalence (OR per
1-unit 1.32 $[95\%$ CI: 1.23, 1.41]) and its individual
components. Furthermore, higher MDS was associated with
increased LVRI (Estimate 0.012 g/mL $[95\%$ CI: 0.008,
0.017]) and decreased left ventricular end-diastolic volume
(Estimate -1.132 mL/m2 $[95\%$ CI: -1.538, -0.727]),
indicating concentric hypertrophy. Two-sample Mendelian
Randomization suggested no causal relationship between serum
magnesium and MRI-derived cardiac markers.Magnesium
depletion may serve as an early indicator of cardiac
impairment. However, Mendelian Randomization results do not
support a causal role of serum magnesium on cardiac
structure and morphology.},
keywords = {Magnesium (Other) / cardiac function (Other) / cardiac
morphology (Other) / magnetic resonance imaging (Other) /
metabolic syndrome (Other)},
cin = {E230 / C070},
ddc = {610},
cid = {I:(DE-He78)E230-20160331 / I:(DE-He78)C070-20160331},
pnm = {319H - Addenda (POF4-319H)},
pid = {G:(DE-HGF)POF4-319H},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40839755},
doi = {10.1210/clinem/dgaf476},
url = {https://inrepo02.dkfz.de/record/303978},
}