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PloS One 2017Current treatment options for depression are limited by efficacy, cost, availability, side effects, and acceptability to patients. Several studies have looked at the... (Randomized Controlled Trial)
Randomized Controlled Trial
Current treatment options for depression are limited by efficacy, cost, availability, side effects, and acceptability to patients. Several studies have looked at the association between magnesium and depression, yet its role in symptom management is unclear. The objective of this trial was to test whether supplementation with over-the-counter magnesium chloride improves symptoms of depression. An open-label, blocked, randomized, cross-over trial was carried out in outpatient primary care clinics on 126 adults (mean age 52; 38% male) diagnosed with and currently experiencing mild-to-moderate symptoms with Patient Health Questionnaire-9 (PHQ-9) scores of 5-19. The intervention was 6 weeks of active treatment (248 mg of elemental magnesium per day) compared to 6 weeks of control (no treatment). Assessments of depression symptoms were completed at bi-weekly phone calls. The primary outcome was the net difference in the change in depression symptoms from baseline to the end of each treatment period. Secondary outcomes included changes in anxiety symptoms as well as adherence to the supplement regimen, appearance of adverse effects, and intention to use magnesium supplements in the future. Between June 2015 and May 2016, 112 participants provided analyzable data. Consumption of magnesium chloride for 6 weeks resulted in a clinically significant net improvement in PHQ-9 scores of -6.0 points (CI -7.9, -4.2; P<0.001) and net improvement in Generalized Anxiety Disorders-7 scores of -4.5 points (CI -6.6, -2.4; P<0.001). Average adherence was 83% by pill count. The supplements were well tolerated and 61% of participants reported they would use magnesium in the future. Similar effects were observed regardless of age, gender, baseline severity of depression, baseline magnesium level, or use of antidepressant treatments. Effects were observed within two weeks. Magnesium is effective for mild-to-moderate depression in adults. It works quickly and is well tolerated without the need for close monitoring for toxicity.
Topics: Adult; Aged; Antidepressive Agents; Cross-Over Studies; Depressive Disorder; Female; Humans; Magnesium Chloride; Male; Middle Aged; Treatment Outcome
PubMed: 28654669
DOI: 10.1371/journal.pone.0180067 -
Clinical Journal of the American... Dec 2014The distal convoluted tubule is the nephron segment that lies immediately downstream of the macula densa. Although short in length, the distal convoluted tubule plays a... (Review)
Review
The distal convoluted tubule is the nephron segment that lies immediately downstream of the macula densa. Although short in length, the distal convoluted tubule plays a critical role in sodium, potassium, and divalent cation homeostasis. Recent genetic and physiologic studies have greatly expanded our understanding of how the distal convoluted tubule regulates these processes at the molecular level. This article provides an update on the distal convoluted tubule, highlighting concepts and pathophysiology relevant to clinical practice.
Topics: Calcium; Cations, Divalent; Epithelial Sodium Channels; Humans; Kidney Tubules, Distal; Magnesium; Potassium; Potassium Channels, Inwardly Rectifying; Protein Serine-Threonine Kinases; Renal Reabsorption; Signal Transduction; Sodium; Sodium Chloride; Solute Carrier Family 12, Member 3
PubMed: 24855283
DOI: 10.2215/CJN.05920613 -
Materials Today. Bio Dec 2022Implantation of cardiovascular stents is an important therapeutic method to treat coronary artery diseases. Bare-metal and drug-eluting stents show promising clinical... (Review)
Review
Implantation of cardiovascular stents is an important therapeutic method to treat coronary artery diseases. Bare-metal and drug-eluting stents show promising clinical outcomes, however, their permanent presence may create complications. In recent years, numerous preclinical and clinical trials have evaluated the properties of bioresorbable stents, including polymer and magnesium-based stents. Three-dimensional (3D) printed-shape-memory polymeric materials enable the self-deployment of stents and provide a novel approach for individualized treatment. Novel bioresorbable metallic stents such as iron- and zinc-based stents have also been investigated and refined. However, the development of novel bioresorbable stents accompanied by clinical translation remains time-consuming and challenging. This review comprehensively summarizes the development of bioresorbable stents based on their preclinical/clinical trials and highlights translational research as well as novel technologies for stents (e.g., bioresorbable electronic stents integrated with biosensors). These findings are expected to inspire the design of novel stents and optimization approaches to improve the efficacy of treatments for cardiovascular diseases.
PubMed: 35937578
DOI: 10.1016/j.mtbio.2022.100368 -
Anaesthesiology Intensive Therapy 2015"Balanced" solutions are commonly defined as intravenous fluids having an electrolyte composition close to that of plasma. As such, they should minimally affect... (Review)
Review
"Balanced" solutions are commonly defined as intravenous fluids having an electrolyte composition close to that of plasma. As such, they should minimally affect acid-base equilibrium, as compared to the commonly reported 0.9% NaCl-related hyperchloremic metabolic acidosis. Recently, the term "balanced" solution has been also employed to indicate intravenous fluids with low chloride content, being the concentration of this electrolyte the most altered and supra-physiologic in 0.9% NaCl as compared to plasma, and based upon a suggested detrimental effect on renal function associated with hyperchloremia. Despite efforts for its identification, the ideal balanced solution, with minimal effects on acid-base status, low chloride content, and adequate tonicity, is not yet available. After the accumulation of pre-clinical and clinical physiologic data, in the last three years, several clinical trials, mostly observational and retrospective, have addressed the question of whether the use of balanced solutions has beneficial effects as compared to the standard of care, sometimes even suggesting an improvement in survival. Nonetheless, the first large randomized controlled trial comparing the effects of a balanced vs. unbalanced solution on renal function in critically-ill patients (SPLIT trial, the 0.9% Saline vs Plasma-Lyte 148 for Intensive Cate Unit Fluid Therapy), just recently published, showed identical equipoise between the two treatments. In the present review, we offer a comprehensive and updated summary on this issue, firstly, by providing a full physiological background of balanced solutions, secondly, by summarizing their potential pathophysiologic effects, and lastly, by presenting the clinical evidence available to support, at the moment, their use.
Topics: Acid-Base Equilibrium; Calcium; Chlorides; Fluid Therapy; Humans; Kidney Transplantation; Magnesium; Potassium; Water-Electrolyte Balance
PubMed: 26588483
DOI: 10.5603/AIT.a2015.0079 -
Nutrients May 2022Patients suffering from fibromyalgia often report stress and pain, with both often refractory to usual drug treatment. Magnesium supplementation seems to improve... (Randomized Controlled Trial)
Randomized Controlled Trial
Patients suffering from fibromyalgia often report stress and pain, with both often refractory to usual drug treatment. Magnesium supplementation seems to improve fibromyalgia symptoms, but the level of evidence is still poor. This study is a randomized, controlled, double-blind trial in fibromyalgia patients that compared once a day oral magnesium 100 mg (Chronomag, magnesium chloride technology formula) to placebo, for 1 month. The primary endpoint was the level of stress on the DASS-42 scale, and secondary endpoints were pain, sleep, quality of life, fatigue, catastrophism, social vulnerability, and magnesium blood concentrations. After 1 month of treatment, the DASS-42 score decreased in the magnesium and placebo groups but not significantly (21.8 ± 9.6 vs. 21.6 ± 10.8, respectively, = 0.930). Magnesium supplementation significantly reduced the mild/moderate stress subgroup (DASS-42 stress score: 22.1 ± 2.8 to 12.3 ± 7.0 in magnesium vs. 21.9 ± 11.9 to 22.9 ± 11.9 in placebo, = 0.003). Pain severity diminished significantly ( = 0.029) with magnesium while the other parameters were not significantly different between both groups. These findings show, for the first time, that magnesium improves mild/moderate stress and reduces the pain experience in fibromyalgia patients. This suggests that daily magnesium could be a useful treatment to improve the burden of disease of fibromyalgia patients and calls for a larger clinical trial.
Topics: Fibromyalgia; Humans; Magnesium; Magnesium Chloride; Pain; Quality of Life
PubMed: 35631229
DOI: 10.3390/nu14102088 -
Kidney International Jan 2017Gitelman syndrome (GS) is a rare, salt-losing tubulopathy characterized by hypokalemic metabolic alkalosis with hypomagnesemia and hypocalciuria. The disease is...
Gitelman syndrome (GS) is a rare, salt-losing tubulopathy characterized by hypokalemic metabolic alkalosis with hypomagnesemia and hypocalciuria. The disease is recessively inherited, caused by inactivating mutations in the SLC12A3 gene that encodes the thiazide-sensitive sodium-chloride cotransporter (NCC). GS is usually detected during adolescence or adulthood, either fortuitously or in association with mild or nonspecific symptoms or both. The disease is characterized by high phenotypic variability and a significant reduction in the quality of life, and it may be associated with severe manifestations. GS is usually managed by a liberal salt intake together with oral magnesium and potassium supplements. A general problem in rare diseases is the lack of high quality evidence to inform diagnosis, prognosis, and management. We report here on the current state of knowledge related to the diagnostic evaluation, follow-up, management, and treatment of GS; identify knowledge gaps; and propose a research agenda to substantiate a number of issues related to GS. This expert consensus statement aims to establish an initial framework to enable clinical auditing and thus improve quality control of care.
Topics: Angiotensin Receptor Antagonists; Angiotensin-Converting Enzyme Inhibitors; Anti-Inflammatory Agents, Non-Steroidal; Bartter Syndrome; Calcium; Chloride Channels; Chondrocalcinosis; Consensus Development Conferences as Topic; Diagnosis, Differential; Dietary Supplements; Genetic Testing; Gitelman Syndrome; Humans; Hypokalemia; Magnesium; Mutation; Phenotype; Potassium; Practice Guidelines as Topic; Quality of Life; Rare Diseases; Sodium Chloride, Dietary; Solute Carrier Family 12, Member 3; Ultrasonography
PubMed: 28003083
DOI: 10.1016/j.kint.2016.09.046 -
IBRO Reports Jun 2020The technical difficulty to isolate microglia, astrocytes and infiltrating immune cells from mouse brain is nowadays a limiting factor in the study of neuroinflammation....
The technical difficulty to isolate microglia, astrocytes and infiltrating immune cells from mouse brain is nowadays a limiting factor in the study of neuroinflammation. Brain isolation requirements are cell-type and animal-age dependent, but current brain dissociation procedures are poorly standardized. This lack of comprehensive studies hampers the selection of optimized methodologies. Thus, we present here a comparative analysis of dissociation methods and Percoll-based separation to identify the most efficient procedure for the combined isolation of healthy microglia, astrocytes and infiltrated leukocytes; distinguishing neonatal and adult mouse brain. Gentle mechanical dissociation and DNase I incubation was supplemented with papain or collagenase II. Dispase II digestion was also used alone or in combination. In addition, cell separation efficiency of 30 % and 30-70 % Percoll gradients was compared. In these experiments, cell yield and integrity of freshly dissociated cells was measured by flow cytometry. We found that papain digestion in combination with dispase II followed by 30 % Percoll separation is the most balanced method to obtain a mixture of microglia, astrocytes and infiltrated immune cells; while addition of dispase II was not an advantage for neonatal brain. These dissociation conditions allowed flow cytometry detection of a slight glial activation triggered by sublethal LPS injection. In conclusion, the enzymes and Percoll density gradients tested here affected differently resting microglia, activated microglia/macrophages, astrocytes and infiltrated lymphocytes. Also, newborn and adult brain showed contrasting reactions to digestion. Our study highlights the strength of flow cytometry for the simultaneous analysis of neuroimmune cell populations once extraction is optimized.
PubMed: 32215337
DOI: 10.1016/j.ibror.2019.12.004 -
Journal of Dairy Science Jun 2022The aim of this study was to manufacture magnesium-fortified Chihuahua cheese and to evaluate the effect of magnesium fortification on quality parameters. Addition of...
The aim of this study was to manufacture magnesium-fortified Chihuahua cheese and to evaluate the effect of magnesium fortification on quality parameters. Addition of magnesium chloride to milk during pasteurization (5.44, 10.80, 16.40, 22.00, and 25.20 g of MgCl·6HO/L of milk) resulted in cheese with increased magnesium content, proportional to the amount of magnesium added (up to 2,957.13 mg of Mg/kg of cheese). As magnesium content increased, coagulation time and moisture content also increased, whereas calcium content decreased. Higher levels of magnesium fortification (16.40 g of MgCl·6HO/L of milk or more) induced the development of bitter-acid flavors and softer texture. Addition of 10.80 g of MgCl·6HO/L to milk resulted in Chihuahua cheese that meets regulatory standards and possesses physicochemical and sensory characteristics similar to those of nonfortified Chihuahua cheese. Under this milk fortification level, the manufactured cheese is able to provide 148.4 mg of magnesium per day (35% of the recommended daily intake of magnesium for adult males and 46% for adult females) assuming 3 portions (28 g each) are consumed.
Topics: Animals; Cheese; Magnesium; Milk; Taste
PubMed: 35346481
DOI: 10.3168/jds.2021-21631