Role Of Magnesium Deficiency Research Articles

The role of magnesium deficiency in the pathogenesis of hypertension and the influence of magnesium supplementation on blood pressure – literature review

Magnesium is a macronutrient that is very important for the proper functioning of the human body. Deficiency of this element is crucial in the development of many disorders in the proper functioning of many organ systems. The optimal level of magnesium has a significant influence on the functioning of the cardiovascular system, among others. Although the factors showing the mechanism of lowering blood pressure by magnesium ions are not fully understood, the influence of the correct concentration of magnesium in the human body on cardiovascular protection is beyond doubt. Magnesium supplementation produces positive effects in the functioning of blood vessels and in maintaining blood pressure within the normal range. In our article, we focused on the role of magnesium in maintaining normal blood pressure at the molecular, cellular and tissue levels, as well as on the impact of magnesium supplementation on reducing blood pressure.

Calcium, Magnesium, and Zinc Supplementation during Pregnancy: The Additive Value of Micronutrients on Maternal Immune Response after SARS-CoV-2 Infection.

Magnesium may contribute to the immune response during and after SARS-CoV-2 infection by acting as a cofactor for immunoglobulin production and other processes required for T and B cell activity. Considering magnesium as a recommended dietary supplement during pregnancy and the possible role of magnesium deficiency in COVID-19 and its complications, the current study sought to determine the effect of magnesium and magnesium-containing nutritional supplements on the immune response following SARS-CoV-2 infection in pregnant women, as well as to observe differences in pregnancy outcomes based on the supplements taken during pregnancy. The study followed a cross-sectional design, where patients with a history of SARS-CoV-2 infection during their pregnancy were surveyed for their preferences in nutritional supplementation and their profile compared with existing records from the institutional database. A cohort of 448 pregnant women with COVID-19 during 22 months of the pandemic was assembled, out of which 13.6% took a magnesium-only supplement, and 16.5% supplemented their diet with a combination of calcium, magnesium, and zinc. Around 60% of patients in the no-supplementation group had the SARS-CoV-2 anti-RBD lower than 500 U/mL, compared with 50% in those who took magnesium-based supplements. A quantity of magnesium >450 mg in the taken supplements determined higher levels of antibody titers after COVID-19. Low magnesium dosage (<450 mg) was an independent risk factor for a weak immune response (OR-1.25, p-value = 0.003). The observed findings suggest supplementing the nutritional intake of pregnant women with magnesium-based supplements to determine higher levels of SARS-CoV-2 anti-RBD antibodies, although causality remains unclear.

Фізіологія обміну магнію і застосування магнезії в інтенсивній терапії (літературний огляд із результатами власних спостережень, частина 3)

Ми надали в цьому огляді результати експериментальних і клінічних досліджень, які найбільш переконливо демонструють місце порушень обміну магнію в розвитку пошкоджень міокарда, фатальних аритмій і артеріальної гіпертензії. Ми також висвітлили питання діагностики прихованого дефіциту магнію в організмі і роль дефіциту магнію в патогенезі кардіоміопатії, застійної серцевої недостатності і пролапсу мітрального клапана. Пероральні добавки Mg сприяють зниженню середнього артеріального тиску, периферичного опору судин і частоти ізольованих і залпових шлуночкових екстрасистол і нападів нестійкої шлуночкової тахіаритмії. Вчені виявили, що в багатьох пацієнтів із сильно вираженим пролапсом мітрального клапана рівень Mg в сироватці крові був низьким і прийом добавок з Mg призводить до поліпшення стану пацієнтів. Контроль статусу магнієвого обміну в організмі не тільки необхідний в умовах інтенсивної терапії та стаціонару в цілому, але також актуальний в амбулаторній практиці. Регулярний прийом препаратів Mg або харчових добавок, що містять в основному Mg, може істотно поліпшити результати лікування численних захворювань і запобігти розвитку небезпечних для організму ускладнень. При цьому собівартість магнезіальної терапії є досить низькою.

Neurotic disorder, headache, and stress: experience of managing a comorbid patient and the role of magnesium drugs

In the practice of neurologists and therapists, patients with complaints of headache, increased fatigue, and irritability are common. The most frequent causes of headaches in ambulatory patients are primary headaches (migraine and tension headaches). Lack of sleep, stress, symptoms of anxiety and depression, and abuse of analgesic drugs are the most common factors that contribute to the frequency of headaches. Magnesium deficiency is another factor, the role of which has been discussed in the frequency of primary headaches, in the development of neurotic disorders and depression. Clinical manifestations of magnesium deficiency itself usually include such nonspecific symptoms as fatigue, anxiety, irritability, numbness in the extremities, leg cramps, sleep disorders, etc.Magnesium deficiency is widespread among the population of developed countries, especially among women of reproductive age, often occurs during pregnancy, while taking oral contraceptives. Magnesium is involved in the regulation of the nervous system, neuromuscular transmission, cardiac activity, regulation of vascular tone, blood clotting and bone tissue metabolism. Magnesium deficiency is associated with diseases such as coronary heart disease, hypertension, type 2 diabetes, Alzheimer’s disease, migraine, osteoporosis, depression, neurotic disorders (panic disorder, generalized anxiety, various phobias), and fibromyalgia syndrome. Stress can lead to a decrease in magnesium levels in the body, and magnesium deficiency, in turn, reduces tolerance to stressful situations. Timely diagnosis and adequate treatment of magnesium deficiency and associated conditions represent important clinical challenges.The clinical case of a patient with neurotic disorder, headache and magnesium deficiency is presented, and the effectiveness of an interdisciplinary approach including an educational talk, adequate therapy for headache management, magnesium drug therapy and psychological methods is demonstrated. The role of magnesium deficiency in the development of various neurologic diseases is reviewed. The most effective magnesium compounds for therapy are discussed. Principles of diagnosis and treatment of patients with magnesium deficiency are presented.

The role of magnesium deficiency in cardiovascular and intestinal inflammation.

Hypomagnesemia continues to cause difficult clinical problems, such as significant cardiac arrhythmias where intravenous magnesium therapy can be lifesaving. Nutritional deficiency of magnesium may present with some subtle symptoms such as leg cramps and occasional palpitation. We have investigated dietary-induced magnesium deficiency in rodent models to assess the pathobiology associated with prolonged hypomagnesemia. We found that neuronal sources of the neuropeptide, substance P (SP), contributed to very early prooxidant/proinflammatory changes during Mg deficiency. This neurogenic inflammation is systemic in nature, affecting blood cells, cardiovascular, intestinal, and other tissues, leading to impaired cardiac contractility similar to that seen in patients with heart failure. We have used drugs that block the release of SP from neurons and SP-receptor blockers to prevent some of these pathobiological changes; whereas, blocking SP catabolism enhances inflammation. Our findings emphasize the essential role of this cation in preventing cardiomyopathic changes and intestinal inflammation in a well-studied animal model, and also implicate the need for more appreciation of the potential clinical relevance of optimal magnesium nutrition and therapy.

The role of magnesium deficiency in the formation of functional constipation in children and adolescents

Pediatricians face a problem of functional constipation in children and adolescents in one-third of cases of observation. Functional disorders of the gastrointestinal tract are based on disregulatory processes of the cortical-vegetative-endocrine complex. Magnesium deficiency is one of the factors influencing the formation of functional constipation in children, and an important link in the pathogenesis of the disease. Correction of magnesium level by means of magnesium-containing mineral water is one of the safe, effective and complex factors influencing a number of pathogenetic mechanisms of formation of functional constipation in children and teenagers.

THE ROLE OF MAGNESIUM DEFICIENCY AND ITS SUPPLEMATION IN DISEASES OF CENTRAL NERVOUS SYSTEM. REVIEW

Relevance. Anti-depressant effects of NMDA receptor antagonists have been proven, a close association between low levels of magnesium in the blood and depression. Therefore, in recent years, antidepressant properties of magnesium are actively studied in animal experiments. Objective: To review modern literary sources about the role of magnesium deficiency in the pathogenesis of diseases of the central nervous system. Materials and methods. Searching for a depth of 12 years at Scopus, Google Scholar. Results. The results of experimental and clinical researches pointed out on association between low level of magnesium in hair, liquor, brain with higher risk of development dementia, depression and anxiety. An additional supplementation with magnesium in patients associates with decreasing risk of ischemic stroke and dementia, in pregnancy – provides neuroprotection of fetus, in case of depression increases effectiveness of antidepressants, in brain injury associates with faster recovery of cognitive functions, in migraines - with decreasing in the frequency of attacks and improvement of the quality patients’ lives, in case of neuroleptic therapy - with the possibility of delayed appearance or absence of manifestations of drug parkinsonism. These changes are explained by antagonistic effects of magnesium on glutamate receptors, decreasing oxidative stress intensity as well as neural cell apoptosis. Conclusion. Magnesium plays an important neuroprotective role.

Role of Magnesium Deficiency in Promoting Atherosclerosis, Endothelial Dysfunction, and Arterial Stiffening as Risk Factors for Hypertension.

Arterial hypertension is a disease with a complex pathogenesis. Despite considerable knowledge about this socially significant disease, the role of magnesium deficiency (MgD) as a risk factor is not fully understood. Magnesium is a natural calcium antagonist. It potentiates the production of local vasodilator mediators (prostacyclin and nitric oxide) and alters vascular responses to a variety of vasoactive substances (endothelin-1, angiotensin II, and catecholamines). MgD stimulates the production of aldosterone and potentiates vascular inflammatory response, while expression/activity of various antioxidant enzymes (glutathione peroxidase, superoxide dismutase, and catalase) and the levels of important antioxidants (vitamin C, vitamin E, and selenium) are decreased. Magnesium balances the effects of catecholamines in acute and chronic stress. MgD may be associated with the development of insulin resistance, hyperglycemia, and changes in lipid metabolism, which enhance atherosclerotic changes and arterial stiffness. Magnesium regulates collagen and elastin turnover in the vascular wall and matrix metalloproteinase activity. Magnesium helps to protect the elastic fibers from calcium deposition and maintains the elasticity of the vessels. Considering the numerous positive effects on a number of mechanisms related to arterial hypertension, consuming a healthy diet that provides the recommended amount of magnesium can be an appropriate strategy for helping control blood pressure.

Magnesium Metabolism, Vitamin D and Interleukins in Cardiovascular Disease

A magnesium deficiency is known to be involved in the pathogenesis of cardiovascular diseases. In patients with essential hypertension intima media thickness is increased in about 70% (ELSA Study). In our study, we investigated 21 patients (10 female, 11 male, average age 56.3 ± 6.6 years) with untreated essential hypertension (grades I and II according to WHO guidelines). All patients had a hypomagnesiaemia in serum (1.57 ± 0.11 mg%). In all patients we found a significant increase in intima media thickness of arteria carotis communis (0.97 ± 0.08 mm) (r=-0.869, p<0.0001). The results show that a magnesium deficiency in patients with essential hypertension may be of special pathogenetic importance. In addition, the role of magnesium deficiency in the development of arteriosclerosis has to be discussed. Furthermore, we demonstrated a connection between magnesium deficiency and an increased intima media thickness. In this context, calcium antagonist therapy or magnesium supplementation may be of advantage when treating intima media thickness in hypertension. In addition in essential hypertensives with diabetes mellitus type IIb showing lowered magnesium (1.72 ± 0.08 mg/ dl) and vitamin D (9.55 ± 4.74 ng/ml) levels interleukine 6 concentrations were 8.57 ± 4.14 pg/ml (p<0.01 vs. controls) being a risk factor for metabolic disorder, e. g. arteriosclerosis.

Cisplatin-induced renal toxicity magn…ified: role of magnesium deficiency in AKI onset.

cisplatin is one of the most common and most effective chemotherapeutic agents used for the treatment of various solid types of cancer ([1][1], [11][2]). Clinically, cisplatin treatment is characterized by a high level of remission: e.g., ∼80% in the case of testicular cancer ([4][3]). The

Hypomagnesaemia in kidney transplantation.

In the era of calcineurin inhibitors, hypomagnesaemia is a very common finding in kidney transplant recipients. Especially the first weeks after transplantation it is the rule rather than the exception. Hypomagnesaemia or low magnesium intake have been associated with a higher mortality or more cardiovascular events in the general population, but this association has never been explored in kidney transplant recipients, despite their increased cardiovascular risk. Kidney transplant recipients with pre- or post-transplant hypomagnesaemia seem to have an aberrant glucose metabolism and develop diabetes mellitus more frequently. Moreover, observations from alternate study populations, animal experiments or in vitro studies suggest a possible role of magnesium deficiency in graft dysfunction, bone metabolism and transplant immunology. Future observational and especially interventional studies should further define whether and to what extent we should make effort to correct this electrolyte disturbance in transplant recipients. Considering the mechanism of renal magnesium wasting, normalizing the serum magnesium concentration by oral supplementation alone might turn out to be cumbersome in kidney transplant recipients.

Inflammation and elevation of C-reactive protein: does magnesium play a key role?

The adverse role played by inflammation in the etiology of humankind's most prevalent chronic diseases compels researchers to work diligently to explore its biologic basis. Recent research supports the concept of an important relationship between dietary factors and inflammation, and in particular the role of magnesium deficiency, however, the specifics of this association are not completely understood. Recent findings from epidemiologic studies support that magnesium intake is inversely associated with C-reactive protein concentration, an important marker of inflammation strongly associated with cardiovascular disease risk. Animal studies have provided many mechanistic possibilities to explain the link between magnesium and inflammation. Further research is needed to understand more completely the role of magnesium in inflammation.

Magnesium homeostasis and alcohol consumption.

Clinical and experimental evidence indicates alcohol consumption as one of the major causes of magnesium loss from several tissues. As a result of this loss, serum magnesium tends to decrease while urinary magnesium excretion increases 2-3 fold. Experimental data confirm that chronic consumption of 6% ethanol in the Lieber De-Carli diet for 3 weeks results in a marked decrease in total tissue magnesium content in rats. This decrease affects brain, liver and all skeletal muscle, including heart, to a varying extent. While a full picture of the implications of magnesium loss in these tissues is still lacking, it is becoming progressively clear that magnesium loss affects energy production, protein synthesis, cell cycle, and specific functions in the various organs affected. In addition, as magnesium regulated cytokine production and secretion, especially in macrophages and leukocytes, a major role of magnesium deficiency in alcohol-induced inflammatory processes can be envisioned. Considering all these various aspects together, it becomes apparent that magnesium loss may represent a predisposing factor to the onset of alcohol-induced pathologies including brain stroke, sarcopenia, cardiomyopathy, steatohepatitis and cirrhosis. The present review will attempt to clarify some of the mechanisms by which ethanol impairs magnesium transport and homeostasis in brain, brain vasculature, skeletal muscle, heart and liver cells, as a first step towards more mechanistic studies aimed at relating magnesium loss with the incurrence of short- and long-term ethanol-induced complications in these organs.

Aspectos atuais da relação entre exercício físico, estresse oxidativo e magnésio

Este trabalho visa a contribuir com informações atualizadas sobre a relação entre exercício, estresse oxidativo e magnésio. São escassos os trabalhos que discutem a produção de radicais livres nesse contexto. A deficiência de magnésio altera a fluidez das membranas celulares e mitocondriais e promove perturbações na homeostase do cálcio e na atividade das defesas antioxidantes. No exercício, a falta de magnésio nos tecidos musculares os torna mais suscetíveis à infiltração de macrófagos e neutrófilos e ao rompimento do sarcolema, dificultando o processo de regeneração e podendo ocasionar queda no desempenho físico. Conclui-se que o papel metabólico da deficiência de magnésio no estresse oxidativo induzido pelo exercício deve ser mais pesquisado, focalizando os seus efeitos na musculatura esquelética em indivíduos que praticam exercício regular e na deficiência marginal de magnésio.

Serum magnesium levels, muscle cramps, and preterm labor

It is known that magnesium plasma level falls during pregnancy. Since magnesium has an inhibitory role on myometrial contractions attention has been paid to the role of magnesium deficiency in causing preterm labor. Hypomagnesemia leads to neuromuscular hyper excitability resulting in muscle cramp and uterine hyper activity. The aim of this study was to determine the relationship between serum magnesium levels with muscle cramps and preterm delivery so that the high morbidity of preterm delivery could be prevented by early diagnosis of this deficiency and its correction. After getting the approval from research committee of Tehran University of Medical Sciences in a prospective case-control study 42 consecutive patients with preterm labor (28-37 weeks of pregnancy) referring to selected labor clinics (case group) were compared to a group of 42 non-complicated nulliparous women in the same age of pregnancy who finally had a term delivery in the same clinics (control group). Serum magnesium levels were measured and subjects were interviewed about changes in quality or quantity of vaginal discharge during preceding seven days and presence of muscle cramps during pregnancy. (excerpt)

Vitamin D insufficiency and the blunted PTH response in established osteoporosis: the role of magnesium deficiency

Vitamin D insufficiency and the blunted PTH response in established osteoporosis: the role of magnesium deficiency

Vitamin D insufficiency and the blunted PTH response in established osteoporosis: the role of magnesium deficiency

Vitamin D insufficiency is common, however within individuals, not all manifest the biochemical effects of PTH excess. This further extends to patients with established osteoporosis. The mechanism underlying the blunted PTH response is unclear but may be related to magnesium (Mg) deficiency. The aims of this study were to compare in patients with established osteoporosis and differing degrees of vitamin D and PTH status : (1) the presence of Mg deficiency using the standard Mg loading test (2) evaluate the effects of Mg loading on the calcium-PTH endocrine axis (3) determine the effects of oral, short term Mg supplementation on the calcium-PTH endocrine axis and bone turnover. 30 patients (10 women in 3 groups) were evaluated prospectively measuring calcium, PTH, Mg retention (Mg loading test), dietary nutrient intake (calcium, vitamin D, Mg) and bone turnover markers (serum CTX & P1CP). Multivariate analysis controlling for potential confounding baseline variable was undertaken for the measured outcomes. All subjects, within the low vitamin D and low PTH group following the magnesium loading test had evidence of Mg depletion [mean(SD) retention 70.3%(12.5)] and showed an increase in calcium 0.06(0.01) mmol/l [95% CI 0.03, 0.09, p=0.007], together with a rise in PTH 13.3 ng/l (4.5) [95% CI 3.2, 23.4, p=0.016] compared to baseline. Following oral supplementation bone turnover increased: CTX 0.16 (0.06) mcg/l [95%CI 0.01, 0.32 p=0.047]; P1CP 13.1 (5.7) mcg/l [95% CI 0.29, 26.6 p=0.049]. In subjects with a low vitamin D and raised PTH mean retention was 55.9%(14.8) and in the vitamin replete group 36.1%(14.4), with little change in both acute markers of calcium homeostasis and bone turnover markers following both the loading test and oral supplementation. This study confirms that in patients with established osteoporosis, there is also a distinct group with a low vitamin D and a blunted PTH level and that Mg deficiency (as measured by the Mg loading test) is an important contributing factor.

Prolonged Magnesium Deficiency Causes Osteoporosis in the Rat

Background: Peroral magnesium (Mg) administration, used as the only treatment in postmenopausal osteoporosis, has been shown to cause a significant increase of BD.Objectives: To gauge the role of magnesium deficiency in the etiology of osteoporosis, we compared rats fed a Mg deficient diet daily with rats fed a Mg adequate diet over a period of one year.Methods: Sprague-Dawley female rats (mean weight 110, SD 23g) were divided into two groups of 8 and randomly assigned to an identical semisynthetic diet, containing either 2000ppm (group A) or 200ppm Mg (group B). Urine samples were collected every 3 months and blood samples at end of trial. After sacrifice, L3–L5 vertebrae and the femoral regions were examined for bone density (BD) using dual energy X-ray absorptiometry. The femurs were examined for bone fragility, the tibias by histomorphometry and the mineral contents of the bones was estimated.Results: The mean BD of L3–L5 vertebral bone (BDL) was significantly higher in group than in the Mg deficient group B (p = 0.035, 1 tail). The BD of the femoral region (BDF) was also significantly higher in group A (p = 0.045, 1 tail). The stiffness of the femur, as determined by resistance to bending, was slightly greater in group A than in group B, but after correction to diminish the influence of the difference in bone dimensions in the two groups, the stiffness (ie loss of elasticity) in group B became significantly greater than that in group A (p = 0.024). The force needed to break the bone (F-max) was significantly higher in group A, than in group B (p = 0.024) and remained so after correction, although no longer significantly. In Group B, the diminution of the trabecular bone volume, in relation to tissue volume (BV/TV) and the increase in the degree of trabecular interconnection (TBPf) indicated osteoporosis, and focal osteoporosis of the metaphyseal spongy bone was seen on microscopy.Conclusion: Experimentally induced prolonged Mg deficiency causes osteoporosis in rats.

Acid soil damage in sorghum genotypes: Role of magnesium deficiency and root impairment

The effects of liming and Mg fertilization on growth, specific root length (root length per unit of root dry weight; SRL) and nutrient uptake of twelve sorghum genotypes (Sorghum bicolor (L.) Moench) were studied in two pot experiments. Liming increased the pH of the sandy loam from pH 4.3 (unlimed) to 4.7 (with 0.5 g Ca(OH)2 kg-1 soil) and to 6.1 (with 2.5 g Ca(OH)2 kg-1 soil). Liming increased the dry matter yield of the genotypes by factors of 1.2 to 6.0 (between pH 4.3 and 4.7) and by 1.1 to 2.4 (between pH 4.7 and 6.1). In absence of Mg at soil pH of 4.3 and 4.7, all genotypes suffered from Mg deficiency, as indicated by low Mg concentrations in the shoots (26–94 mmol Mg kg-1 DM) and visible Mg deficiency symptoms. At pH 4.7 several of the genotypes responded to Mg application and produced significantly more dry matter. At pH 4.3, however, none of the genotypes responded to Mg, even though the internal Mg concentrations were increased by applied Mg. The relative increase in dry matter yield between pH 4.3 and 4.7 was closely correlated to the relative change in specific root length in the same soil pH interval, especially when the soil was fertilized with Mg (r2=0.91**). The group of genotypes where SRL and dry matter yield were reduced by soil acidity was not the same as the group that responded positively to Mg application at pH 4.7.

The role of magnesium deficiency in insulin resistance

The role of magnesium deficiency in insulin resistance