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Al Alawi AM, Al Shukri Z, Al-Busaidi S, Al-Maamari Q, Al Thihli M, Sharji AA, Balushi RA, Al Amri D, Falhammar H, Al-Maqbali JS. Prevalence, clinical characteristics, and health outcomes of dysmagnesemia measured by ionized and total body concentrations among medically hospitalized patients. Sci Rep 2024; 14:23668. [PMID: 39390055 PMCID: PMC11467300 DOI: 10.1038/s41598-024-74920-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 09/30/2024] [Indexed: 10/12/2024] Open
Abstract
Ionized Mg (iMg) may offer a more reliable indicator of Mg status during acute illness than total Mg (tMg) concentrations. This study aimed to determine the prevalence of dysmagnesemia and their relationship using iMg and tMg. The clinical and biochemical characteristics as well as health outcomes and their association with iMg and tMg were also assessed. A prospective study including all eligible adult patients (≥18 years) who were hospitalized in the General Internal Medicine unit at Sultan Qaboos University Hospital (SQUH) for 3.5 months in 2023. The iMg and tMg concentrations were collected on all at the admission. In total 500 patients were included (females 49.2%) with a median age of 64.5 years (IQR: 48-77). The prevalence of hypomagnesemia and hypermagnesemia by iMg concentrations was 3.4% and 26.6%, respectively, while by tMg concentrations 13.2% and 11.0%, respectively. The agreement between both measurements was strong (r=0.665, p<0.01). An increased tMg concentration was independently associated with high dependency units' admission (adjusted odds ratio (aOR): 4.34, 95%CI: 1.24-15.06, p=0.02) and cardiac arrest (aOR: 14.64, 95%CI: 3.04-70.57, p<0.01), and 6-month all-cause mortality (aOR: 11.44, 95%CI: 2.46-53.17, p<0.01). During follow-up hypermagnesemia using tMg had a higher mortality compared to other groups (hazard ratio (HR): 1.82, 95%CI: 1.11-3.01, p=0.02) while no significant findings were demonstrated using iMg concentrations. iMg and tMg concentrations had a strong correlation that might be supporting the potential use of point-of-care devices. Multivariant regression analysis showed that hypermagnesemia by tMg was associated with adverse outcomes. However, the generalizability of the study findings should be taken with caution and the difference in the associations with outcomes highlight the importance of further research to examine the complex associations and impacts of dysmagnesemia in various clinical settings.
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Affiliation(s)
- Abdullah M Al Alawi
- Department of Medicine, Sultan Qaboos University Hospital, Muscat, Oman
- Internal Medicine Residency Training Program, Oman Medical Specialty B, Muscat, Oman
| | - Zahra Al Shukri
- Internal Medicine Residency Training Program, Oman Medical Specialty B, Muscat, Oman
| | - Salim Al-Busaidi
- Department of Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | - Qasim Al-Maamari
- Department of Nursing, Sultan Qaboos University Hospital, Muscat, Oman
| | - Masood Al Thihli
- Department of Nursing, Sultan Qaboos University Hospital, Muscat, Oman
| | - Amal Al Sharji
- Department of Nursing, Sultan Qaboos University Hospital, Muscat, Oman
| | - Ramia Al Balushi
- Department of Nursing, Sultan Qaboos University Hospital, Muscat, Oman
| | - Dawood Al Amri
- Department of Nursing, Sultan Qaboos University Hospital, Muscat, Oman
| | - Henrik Falhammar
- Department of Endocrinology, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Juhaina Salim Al-Maqbali
- Department of Pharmacy, Sultan Qaboos University Hospital, P.O. Box: 631, P.C. 320, Muscat, Oman.
- Department of Pharmacology and Clinical Pharmacy, College of Medicine and Health Science, Sultan Qaboos University, Muscat, Oman.
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Stanojević M, Djuricic N, Parezanovic M, Biorac M, Pathak D, Spasic S, Lopicic S, Kovacevic S, Nesovic Ostojic J. The Impact of Chronic Magnesium Deficiency on Excitable Tissues-Translational Aspects. Biol Trace Elem Res 2024:10.1007/s12011-024-04216-2. [PMID: 38709369 DOI: 10.1007/s12011-024-04216-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 04/28/2024] [Indexed: 05/07/2024]
Abstract
Neuromuscular excitability is a vital body function, and Mg2+ is an essential regulatory cation for the function of excitable membranes. Loss of Mg2+ homeostasis disturbs fluxes of other cations across cell membranes, leading to pathophysiological electrogenesis, which can eventually cause vital threat to the patient. Chronic subclinical Mg2+ deficiency is an increasingly prevalent condition in the general population. It is associated with an elevated risk of cardiovascular, respiratory and neurological conditions and an increased mortality. Magnesium favours bronchodilation (by antagonizing Ca2+ channels on airway smooth muscle and inhibiting the release of endogenous bronchoconstrictors). Magnesium exerts antihypertensive effects by reducing peripheral vascular resistance (increasing endothelial NO and PgI2 release and inhibiting Ca2+ influx into vascular smooth muscle). Magnesium deficiency disturbs heart impulse generation and propagation by prolonging cell depolarization (due to Na+/K+ pump and Kir channel dysfunction) and dysregulating cardiac gap junctions, causing arrhythmias, while prolonged diastolic Ca2+ release (through leaky RyRs) disturbs cardiac excitation-contraction coupling, compromising diastolic relaxation and systolic contraction. In the brain, Mg2+ regulates the function of ion channels and neurotransmitters (blocks voltage-gated Ca2+ channel-mediated transmitter release, antagonizes NMDARs, activates GABAARs, suppresses nAChR ion current and modulates gap junction channels) and blocks ACh release at neuromuscular junctions. Magnesium exerts multiple therapeutic neuroactive effects (antiepileptic, antimigraine, analgesic, neuroprotective, antidepressant, anxiolytic, etc.). This review focuses on the effects of Mg2+ on excitable tissues in health and disease. As a natural membrane stabilizer, Mg2+ opposes the development of many conditions of hyperexcitability. Its beneficial recompensation and supplementation help treat hyperexcitability and should therefore be considered wherever needed.
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Affiliation(s)
- Marija Stanojević
- University of Belgrade, Faculty of Medicine, Institute for Pathological Physiology "Ljubodrag Buba Mihailović", 9, Dr Subotića Street, 11000, Belgrade, Serbia.
| | - Nadezda Djuricic
- University of Belgrade, Faculty of Medicine, Institute for Pathological Physiology "Ljubodrag Buba Mihailović", 9, Dr Subotića Street, 11000, Belgrade, Serbia
| | - Miro Parezanovic
- University of Belgrade, Faculty of Medicine, Institute for Pathological Physiology "Ljubodrag Buba Mihailović", 9, Dr Subotića Street, 11000, Belgrade, Serbia
- Institute for Mother and Child Healthcare of Serbia "Dr Vukan Čupić", Belgrade, Serbia
| | - Marko Biorac
- University of Belgrade, Faculty of Medicine, Institute for Pathological Physiology "Ljubodrag Buba Mihailović", 9, Dr Subotića Street, 11000, Belgrade, Serbia
| | - Dhruba Pathak
- University of Belgrade, Faculty of Medicine, Institute for Pathological Physiology "Ljubodrag Buba Mihailović", 9, Dr Subotića Street, 11000, Belgrade, Serbia
| | - Svetolik Spasic
- University of Belgrade, Faculty of Medicine, Institute for Pathological Physiology "Ljubodrag Buba Mihailović", 9, Dr Subotića Street, 11000, Belgrade, Serbia
| | - Srdjan Lopicic
- University of Belgrade, Faculty of Medicine, Institute for Pathological Physiology "Ljubodrag Buba Mihailović", 9, Dr Subotića Street, 11000, Belgrade, Serbia
| | - Sanjin Kovacevic
- University of Belgrade, Faculty of Medicine, Institute for Pathological Physiology "Ljubodrag Buba Mihailović", 9, Dr Subotića Street, 11000, Belgrade, Serbia
| | - Jelena Nesovic Ostojic
- University of Belgrade, Faculty of Medicine, Institute for Pathological Physiology "Ljubodrag Buba Mihailović", 9, Dr Subotića Street, 11000, Belgrade, Serbia
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Pluquet M, Kamel S, Alencar de Pinho N, Mansencal N, Combe C, Metzger M, Massy ZA, Liabeuf S, Laville SM. Ionized and total magnesium levels in patients with chronic kidney disease: associated factors and outcomes. Clin Kidney J 2024; 17:sfae046. [PMID: 38572502 PMCID: PMC10986257 DOI: 10.1093/ckj/sfae046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Indexed: 04/05/2024] Open
Abstract
Background The association between hypo- and/or hypermagnesaemia and cardiovascular (CV) outcomes or mortality has shown conflicting results in chronic kidney disease (CKD) and has been conducted on total magnesium (tMg) levels. Thus, the objectives of the present study were to (i) describe the serum ionized Mg (iMg) concentration in patients at various CKD stages, (ii) measure the correlation between iMg and tMg concentrations, (iii) identify their associated factors and (iv) determine whether serum tMg and/or iMg concentrations are associated with major adverse cardiovascular events (MACE) and mortality before kidney replacement therapy in CKD patients. Methods Chronic Kidney Disease-Renal Epidemiology and Information Network (CKD-REIN) is a prospective cohort of CKD patients with an estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m2. Baseline iMg and tMg serum concentrations were centrally measured. Adjusted cause-specific Cox proportional hazard models were used to estimate hazard ratios (HRs) for first MACE and for mortality. Results Of the 2419 included patients, median age was 68 years, and the mean eGFR was 34.8 mL/min/1.73 m2. Concentrations of serum iMg and tMg were strongly correlated (r = 0.89, P < .001) and were independently associated with eGFR. The adjusted HR [95% confidence interval (CI)] for MACE associated with the baseline serum tMg level was 1.27 (0.95; 1.69) for patients in Tertile 1 and 1.56 (1.18; 2.06) for patients in Tertile 3, relative to patients in Tertile 2. The HR (95% CI) of death according to serum tMg concentration was increased in Tertile 3 [1.48 (1.11; 1.97)]. The adjusted risk for MACE and mortality (all-cause or CV) associated with the baseline serum iMg level was not significantly different between tertiles. Conclusions Our analysis of a large cohort of patients with moderate-to-advanced CKD demonstrated that individuals with higher serum tMg concentrations, although still within the normal range, had a greater likelihood of MACE and mortality. However, serum iMg levels were not associated with these outcomes.
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Affiliation(s)
- Maxime Pluquet
- MP3CV Laboratory, Jules Verne University of Picardie, Amiens, France
| | - Said Kamel
- MP3CV Laboratory, Jules Verne University of Picardie, Amiens, France
- Department of Biochemistry, Amiens-Picardie University Medical Center, Amiens, France
| | - Natalia Alencar de Pinho
- Centre for Research in Epidemiology and Population Health (CESP), INSERM UMRS 1018, Université Paris-Saclay, Université Versailles Saint Quentin, Villejuif, France
| | - Nicolas Mansencal
- Centre for Research in Epidemiology and Population Health (CESP), INSERM UMRS 1018, Université Paris-Saclay, Université Versailles Saint Quentin, Villejuif, France
- Department of Cardiology, Ambroise Paré University Hospital, APHP, Boulogne-Billancourt, Paris, France
| | - Christian Combe
- Service de Néphrologie Transplantation Dialyse Aphérèse, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France
- INSERM, U1026, Univ Bordeaux Segalen, Bordeaux, France
| | - Marie Metzger
- Centre for Research in Epidemiology and Population Health (CESP), INSERM UMRS 1018, Université Paris-Saclay, Université Versailles Saint Quentin, Villejuif, France
| | - Ziad A Massy
- Centre for Research in Epidemiology and Population Health (CESP), INSERM UMRS 1018, Université Paris-Saclay, Université Versailles Saint Quentin, Villejuif, France
- Department of Nephrology, Ambroise Paré University Hospital, APHP, Boulogne-Billancourt, Paris, France
| | - Sophie Liabeuf
- MP3CV Laboratory, Jules Verne University of Picardie, Amiens, France
- Pharmacoepidemiology Unit, Department of Clinical Pharmacology, Amiens-Picardie University Medical Center, Amiens, France
| | - Solène M Laville
- MP3CV Laboratory, Jules Verne University of Picardie, Amiens, France
- Pharmacoepidemiology Unit, Department of Clinical Pharmacology, Amiens-Picardie University Medical Center, Amiens, France
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Al-Maqbali JS, Al Alawi AM, Al-Falahi Z, Falhammar H, Al-Zakwani I, Al Za’abi M. The Stability of Analytes of Ionized Magnesium Concentration and Its Reference Range in Healthy Volunteers. Biomedicines 2023; 11:2539. [PMID: 37760980 PMCID: PMC10526151 DOI: 10.3390/biomedicines11092539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/08/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
This study aimed to determine the stability of refrigerated analytes of iMg concentration at different time intervals and to establish iMg reference range in a cohort of healthy Omani volunteers (≥18 years). The concentrations of iMg were measured using the direct ion-selective electrode technique. Pearson's and Lin's concordance correlation coefficients along with the Bland-Altman plot were used to assess the levels of agreement between iMg concentrations of fresh and refrigerated blood samples at different time intervals. The study included 167 volunteers (51% females) with a median age of 21 (range: 20-25) years. The median, 2.5th, and 97.5th percentiles for fresh iMg reference ranges were 0.55, 0.47, and 0.68 mmol/L, respectively. The overall agreement between the fresh and refrigerated iMg concentrations was poor (rho-c = 0.51; p < 0.001). However, according to Altman's definition, iMg concentrations of the refrigerated samples for a period of ≤1 h had an excellent correlation with the fresh iMg concentrations (Lin's rho-c = 0.80), with a small average bias difference of 0.009 (95%CI; -0.025-0.043). A cut-off refrigeration period within ≤1 h at 2-8 °C can be considered an alternate time frame for the gold standard measurement (fresh or within 0.5 h).
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Affiliation(s)
- Juhaina Salim Al-Maqbali
- Department of Pharmacology and Clinical Pharmacy, College of Medicine and Health Science, Sultan Qaboos University, Muscat 123, Oman; (J.S.A.-M.); (I.A.-Z.); (M.A.Z.)
- Department of Pharmacy, Sultan Qaboos University Hospital, Muscat 123, Oman
| | - Abdullah M. Al Alawi
- Department of Medicine, Sultan Qaboos University Hospital, Muscat 123, Oman;
- Internal Medicine Residency Training Program, Oman Medical Specialty Board, Muscat 130, Oman
| | - Zubaida Al-Falahi
- Department of Medicine, Sultan Qaboos University Hospital, Muscat 123, Oman;
- Internal Medicine Residency Training Program, Oman Medical Specialty Board, Muscat 130, Oman
| | - Henrik Falhammar
- Department of Endocrinology, Karolinska University Hospital, 17176 Stockholm, Sweden;
- Department of Molecular Medicine and Surgery, Karolinska Institute, 17176 Stockholm, Sweden
| | - Ibrahim Al-Zakwani
- Department of Pharmacology and Clinical Pharmacy, College of Medicine and Health Science, Sultan Qaboos University, Muscat 123, Oman; (J.S.A.-M.); (I.A.-Z.); (M.A.Z.)
- Department of Pharmacy, Sultan Qaboos University Hospital, Muscat 123, Oman
| | - Mohammed Al Za’abi
- Department of Pharmacology and Clinical Pharmacy, College of Medicine and Health Science, Sultan Qaboos University, Muscat 123, Oman; (J.S.A.-M.); (I.A.-Z.); (M.A.Z.)
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Reiner Ž. Arterial Stiffness—What Do We Know about It and What Do We Expect from This Biomarker? J Clin Med 2022; 11:jcm11164843. [PMID: 36013085 PMCID: PMC9410516 DOI: 10.3390/jcm11164843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
It is well known that arterial stiffening is one of the earliest detectable signs of structural and functional alterations of the arterial wall [...]
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Affiliation(s)
- Željko Reiner
- Department of Internal Medicine, University Hospital Center Zagreb, 10000 Zagreb, Croatia
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