Effect of Magnesium Administration in Subjects With Family History of Diabetes or Metabolic Syndrome

NCT01181830 — Phase 4, Completed, 14 participants, Universita di Verona

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RegistryNCT01181830
StatusCompleted
PhasePhase 4
Study typeInterventional; randomized, crossover, masking: quadruple, treatment
Enrollment14 (Actual)
SponsorUniversita di Verona (Other)
ConditionsFamily History of Metabolic Syndrome, Family History of Diabetes
Interventionsmagnesium pidolate, placebo (Drug)
Datesstart 2010-02-01, primary completion 2012-12-01, completion 2012-12-01, first posted 2010-08-13, last updated 2013-10-16
Locations1 site in Italy

Related Papers Related Patents Related Grants Related Experts
All trials for Family History of Metabolic Syndrome All trials for Family History of Diabetes All trials of magnesium pidolate All trials of placebo

-Summary

Magnesium is the second most abundant ion in human cells and plays fundamental roles in several enzymatic reactions: it is involved in ATP production, in the phosphorylation of proteins, in glucose metabolism and in the contraction of cytoskeleton.

Several epidemiological studies demonstrated that low dietary magnesium intake is inversely associated with diabetes mellitus, hypertension and metabolic syndrome.

Magnesium could be related to important haemodynamic and metabolic anomalies: at vascular level it acts as an antagonist of calcium, especially in vascular smooth muscle cells, thus its deficit could enhance vascular contraction; with regard to glucose metabolism, magnesium is involved in the physiopathological mechanism of insulin resistance, through a reduction in cellular uptake of glucose. This condition and the subsequent compensatory hyperinsulinemia can ultimately lead to increased synthesis of proinflammatory cytokines and to endothelial dysfunction. Thus, magnesium depletion and subsequent alterations can increase the risk of developing vascular disease such as atherosclerosis and has been associated with cardiovascular events.

Several clinical trials have explored the possible beneficial effect of magnesium supplementation on blood pressure, plasma lipids and insulin resistance but the results are often contradictory. One of the possibilities for these unclear results could be that in some of them the interventions started too late when haemodynamic and metabolic changes are more difficult to revert.

The investigators hypothesis is that magnesium supplementation in a population at increased genetic risk of developing metabolic syndrome but without it could improve blood pressure and the other metabolic syndrome related components.

Thus, the aim of the present study is to evaluate the effect of oral supplementation of magnesium (16.2 mmol/day of magnesium pidolate) on metabolic syndrome's components in a sample of 15 subjects who are at increased risk of developing metabolic syndrome since have a positive familiar history of type II diabetes mellitus and/or metabolic syndrome(AHA/NHLBI criteria).

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+Arms and interventions

ArmTypeInterventionsDescription
magnesium pidolateActive comparatorDrug: magnesium pidolateadministration of 8.1 mmol bid of magnesium pidolate for 8 weeks
placeboPlacebo comparatorDrug: placeboadministration of 8.1 mmol bid of placebo for 8 weeks
  • magnesium pidolate (Drug): administration of 8.1 mmol bid of magnesium pidolate
  • placebo (Drug): administration of 8.1 mmol bid of placebo

+Outcome measures

Primary outcomes

  • Blood pressure [8 weeks]: Blood pressure measured in the lying and standing position (average of three measurements);

Secondary outcomes

  • other features of metabolic syndrome [8 weeks]: especially plasma lipids and HOMA index
  • endothelial function [8 weeks]: endothelial function as measured non-invasively by ultrasound using the "Flow Mediated Dilatation" (FMD) technique
  • arterial stiffness [8 weeks]: systemic and local arterial stiffness measured by digital photoplethysmography and by carotid ultrasound
  • Inflammation [8 weeks]: Markers of inflammation such as C reactive protein

+Eligibility

Sex: All, ages: 18 Years to 50 Years, accepts healthy volunteers

Inclusion Criteria:

* positive family history of type II diabetes mellitus and/or metabolic syndrome(AHA/NHLBI criteria).

Exclusion Criteria:

* any therapy related to metabolic syndrome (that is antihypertensive, anti diabetic, antilipemic drugs);
* age < 18 years or >50 years;
* previously diagnosed hypertension or immediate need for antihypertensive therapy (BP≥160/100);
* diabetes mellitus (ADA criteria);
* obesity (BMI>30Kg/m2);
* Continuative use of NSAIDs, magnesium or vitamin supplements;
* Hypermagnesaemia;
* Previous cardio- or cerebrovascular events;
* chronic kidney or liver or inflammatory or neoplastic disease;
* gastrointestinal dysfunction with hypomotility;
* active smoke (>5 cigarettes per day);
* Impossibility to give informed consent.

+Locations (1)

FacilityCityCountryStatus
Azienda Ospedaliera Universitaria Integrata - Division of Internal Medicine CVerona, VRItaly

+Publications

  • Results publication: Cosaro E, Bonafini S, Montagnana M, Danese E, Trettene MS, Minuz P, Delva P, Fava C. Effects of magnesium supplements on blood pressure, endothelial function and metabolic parameters in healthy young men with a family history of metabolic syndrome. Nutr Metab Cardiovasc Dis. 2014 Nov;24(11):1213-20. doi: 10.1016/j.numecd.2014.05.010. Epub 2014 May 28. PMID 24984823

+Investigators