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1.
Int J Clin Oncol ; 29(5): 629-637, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38564107

RESUMO

BACKGROUND: The present study aimed to examine the effect of magnesium (Mg) supplementation on cisplatin-induced nephrotoxicity (CIN) in pediatric cancer patients. METHODS: The present phase-2, open-label, multicenter, randomized controlled trial enrolled patients aged less than 20 years who were scheduled to receive cisplatin-containing chemotherapy and randomly allocated them at a ratio of 1:1 to a Mg supplementation arm with even-numbered chemotherapy courses (arm AB) or another arm with odd-numbered courses (arm BA). Analysis objects were reconstructed into two groups depending on whether the chemotherapy course had Mg supplementation (group B) or not (group A). The primary outcome was the proportion of chemotherapy courses resulting in elevated serum creatinine per chemotherapy course. The secondary outcomes included efficacies evaluated using other biomarkers and the safety of the Mg supplementation. RESULTS: Twenty-eight patients were randomly allocated to either group (16 to arm AB and 12 to arm BA). The baseline characteristics of the groups were similar. There was no significant difference in the proportion of courses with increased serum creatinine between the groups (group A: 10% vs. group B: 6%; P = 0.465) nor was any significant difference observed in other biomarkers during any chemotherapy course. The Mg value during chemotherapy was significantly higher in group B than that in group A. No adverse events related to magnesium administration were observed. CONCLUSIONS: The study design, which treated a single chemotherapy course as a study object, failed to detect a statistically significant benefit of Mg supplementation for preventing CIN in pediatric cancer patients. TRIAL REGISTRATION: JRCT ( https://jrct.niph.go.jp/ ) Identifier UMIN000029215 jRCTs031180251. UMIN-CTR ( http://www.umin.ac.jp/icdr/index.html ) Identifier UMIN000029215.


Assuntos
Cisplatino , Suplementos Nutricionais , Magnésio , Neoplasias , Humanos , Cisplatino/efeitos adversos , Cisplatino/administração & dosagem , Feminino , Masculino , Criança , Neoplasias/tratamento farmacológico , Magnésio/uso terapêutico , Magnésio/administração & dosagem , Adolescente , Pré-Escolar , Creatinina/sangue , Antineoplásicos/efeitos adversos , Antineoplásicos/administração & dosagem , Injúria Renal Aguda/induzido quimicamente , Injúria Renal Aguda/prevenção & controle , Adulto Jovem
2.
Nutrients ; 16(6)2024 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-38542765

RESUMO

(1) Background: Vitamin D levels in patients remain inadequately understood, with research yielding inconsistent findings. Breast cancer patients, particularly due to oncological therapies, face an increased risk of osteopenia, which can be exacerbated by a vitamin D deficiency. (2) Methods: The prospective observational "BEGYN-1" study assessed serum 25(OH)D levels at baseline and quarterly thereafter. Clinical, pathological, nutritional, vitamin supplementation, and lifestyle data were recorded. (3) Results: Before treatment, 68.5% of patients were vitamin D deficient (<30 ng/mL), with 4.6% experiencing severe deficiency (<10 ng/mL). The median baseline 25(OH)D levels were 24 ng/mL (range: 4.8 to 64.7 ng/mL). Throughout the study, the median vitamin D levels increased to 48 ng/mL (range: 22.0 to 76.7 ng/mL). Before diagnosis, 16.7% received vitamin D substitution, and 97.8% received vitamin D substitution throughout the year with a median weekly dose of 20,000 IU. It took at least three quarterly assessments for 95% of patients to reach the normal range. A multiple GEE analysis identified associations between 25(OH)D levels and supplementation, season, age, VLDL, magnesium levels, and endocrine therapy. (4) Conclusions: Physicians should monitor 25(OH)D levels before, during, and after oncological therapy to prevent vitamin D deficiency and to adjust substitution individually. While variables such as seasons, age, VLDL, magnesium, diet, and oncological interventions affect 25(OH)D levels, supplementation has the greatest impact.


Assuntos
Neoplasias da Mama , Deficiência de Vitamina D , Humanos , Feminino , Vitamina D , Neoplasias da Mama/tratamento farmacológico , Magnésio/uso terapêutico , Vitaminas , Suplementos Nutricionais
3.
BMJ Case Rep ; 17(2)2024 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-38413141

RESUMO

Magnesium is essential for the functioning and release of parathyroid hormone. Therefore, its deficiency can present as functional hypoparathyroidism. This case report describes a rare inherited disorder called congenital hypomagnesaemia with secondary hypocalcaemia due to TRPM6 gene mutation. This disease clinically and biochemically mimics hypoparathyroidism. However, unlike hypoparathyroidism, it can be treated only by long-term oral magnesium supplements. The patient presented to us with recurrent hypocalcaemic convulsions. The laboratory picture in each admission was similar to that of hypoparathyroidism. However, the hypocalcaemia persisted, and it was noticed to be associated with persistent hypomagnesaemia. A defect in the tubular magnesium reabsorption was postulated and a genetic analysis of the patient was done, which revealed a TRPM6 mutation causing hypomagnesaemia by excessive renal excretion of magnesium. The child responded well to oral magnesium supplements and is currently developmentally appropriate for her age and thriving well.


Assuntos
Hipocalcemia , Hipoparatireoidismo , Deficiência de Magnésio , Canais de Cátion TRPM , Criança , Feminino , Humanos , Magnésio/uso terapêutico , Hipocalcemia/tratamento farmacológico , Hipocalcemia/genética , Hipocalcemia/complicações , Hipoparatireoidismo/complicações , Hipoparatireoidismo/tratamento farmacológico , Hipoparatireoidismo/genética , Mutação , Deficiência de Magnésio/complicações , Deficiência de Magnésio/genética , Canais de Cátion TRPM/genética
4.
Diab Vasc Dis Res ; 21(1): 14791641241228156, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38228168

RESUMO

PURPOSE: To evaluate the effects of chromium (Cr) and magnesium (Mg) ions on metabolic profiles, inflammation, and oxidative stress with impaired glucose tolerance (IGT) and insulin resistance (IR). METHODS: 120 individuals with IGT and IR were randomly divided into four groups treated with (1) chromium, (2) magnesium, (3) chromium and magnesium or (4) placebo. Metabolic and inflammatory indicators were measured at baseline and after 3 months intervention. RESULTS: Comparison among groups showed that fasting plasma glucose (FPG), 2 h post glucose (2hPPG), fasting insulin (FINS) and homeostatic model assessment for insulin resistance (HOMA-IR) in Cr + Mg group were significantly decreased compared with the other three groups (p < .05), and high density lipoprotein (HDL-c) levels were higher. 8-iso prostaglandin F2 alpha (8-iso-PGF2a) decreased in Cr, Mg, and Cr + Mg groups compared with placebo (p < .05), and 8-iso-PGF2a decreased in Cr + Mg groups compared with Cr group and Mg groups (p > .05). Intra-group comparison showed that the levels of FPG, 2hPPG and FINS in Cr + Mg group were significantly decreased after intervention (p < .05), and FINS in Mg group was significantly decreased (p < .01). The levels of HDL-c and triacylglycerol (TG) in Cr + Mg group were significantly improved (p < .05). The level of HDL-c in Mg group was significantly improved compared with baseline (p < .05). Compared with baseline, high-sensitivity C-reactive protein (hsCRP) levels in Cr + Mg group and Mg group were significantly decreased (p < .05). CONCLUSIONS: The co-supplementation of Cr and Mg improves glycemic and lipid levels and reduces the inflammatory response and oxidative stress profiles of individuals with impaired glucose tolerance and insulin resistance.


Assuntos
Intolerância à Glucose , Resistência à Insulina , Humanos , Intolerância à Glucose/diagnóstico , Intolerância à Glucose/tratamento farmacológico , Magnésio/uso terapêutico , Cromo/uso terapêutico , Glicemia/metabolismo , Insulina , Inflamação/diagnóstico , Inflamação/tratamento farmacológico , Suplementos Nutricionais/efeitos adversos , Estresse Oxidativo , Metaboloma
5.
Nat Med ; 30(2): 373-381, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38182784

RESUMO

Traumatic brain injury (TBI) is a leading cause of disability. Sequelae can include functional impairments and psychiatric syndromes such as post-traumatic stress disorder (PTSD), depression and anxiety. Special Operations Forces (SOF) veterans (SOVs) may be at an elevated risk for these complications, leading some to seek underexplored treatment alternatives such as the oneirogen ibogaine, a plant-derived compound known to interact with multiple neurotransmitter systems that has been studied primarily as a treatment for substance use disorders. Ibogaine has been associated with instances of fatal cardiac arrhythmia, but coadministration of magnesium may mitigate this concern. In the present study, we report a prospective observational study of the Magnesium-Ibogaine: the Stanford Traumatic Injury to the CNS protocol (MISTIC), provided together with complementary treatment modalities, in 30 male SOVs with predominantly mild TBI. We assessed changes in the World Health Organization Disability Assessment Schedule from baseline to immediately (primary outcome) and 1 month (secondary outcome) after treatment. Additional secondary outcomes included changes in PTSD (Clinician-Administered PTSD Scale for DSM-5), depression (Montgomery-Åsberg Depression Rating Scale) and anxiety (Hamilton Anxiety Rating Scale). MISTIC resulted in significant improvements in functioning both immediately (Pcorrected < 0.001, Cohen's d = 0.74) and 1 month (Pcorrected < 0.001, d = 2.20) after treatment and in PTSD (Pcorrected < 0.001, d = 2.54), depression (Pcorrected < 0.001, d = 2.80) and anxiety (Pcorrected < 0.001, d = 2.13) at 1 month after treatment. There were no unexpected or serious adverse events. Controlled clinical trials to assess safety and efficacy are needed to validate these initial open-label findings. ClinicalTrials.gov registration: NCT04313712 .


Assuntos
Lesões Encefálicas Traumáticas , Ibogaína , Veteranos , Humanos , Veteranos/psicologia , Magnésio/uso terapêutico , Resultado do Tratamento , Lesões Encefálicas Traumáticas/tratamento farmacológico
6.
Clin Exp Nephrol ; 28(1): 1-12, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37530867

RESUMO

BACKGROUND: Nephrotoxicity remains the most serious side effect of cisplatin therapy. Cisplatin-induced nephrotoxicity (CIN) limits the use of this drug and affects up to 20% of patients. Several possible interventions such as magnesium supplementation may prevent CIN. This study aimed to review different types of hydration protocols and we conducted a meta-analysis of magnesium supplementation to understand its effect in protecting against CIN. METHODS: A search of the PubMed, Embase, and Cochrane databases was performed. Trials were eligible if they enrolled patients who received cisplatin and different hydration protocols to prevent CIN. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to assess the efficacy of different protocols. RESULTS: We initially identified 1113 different studies and included 33 of them which met the selection criteria. A meta-analysis of 11 retrospective studies that examined magnesium supplementation during hydration showed that this treatment provided significant protection against CIN (OR = 0.22, 95% CI = 0.14 to 0.35). CONCLUSION: There has been uncertainty regarding the best method to prevent CIN. Our results highlight the potentially protective effect of magnesium supplementation during hydration. This study is registered in PROSPERO, CRD42020212682.


Assuntos
Cisplatino , Insuficiência Renal , Humanos , Cisplatino/efeitos adversos , Hidróxido de Magnésio , Magnésio/uso terapêutico , Estudos Retrospectivos , Insuficiência Renal/induzido quimicamente , Suplementos Nutricionais , Revisões Sistemáticas como Assunto , Metanálise como Assunto
7.
Pain Pract ; 24(1): 186-210, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37654090

RESUMO

BACKGROUND/IMPORTANCE: Dietary interventions, vitamins, and nutritional supplementation are playing an increasingly important role in the management of neuropathic pain. Current pharmacological treatments are poorly tolerated and ineffective in many cases. OBJECTIVE: This systematic review aims to study the efficacy of dietary interventions, vitamins, and nutritional supplementation in the management of chronic neuropathic pain in adults. EVIDENCE REVIEW: The review followed PRISMA guidelines and was registered with PROSPERO (#CRD42022300312). Ten databases and gray literature, including Embase.com, MEDLINE and Web of Science, were systematically searched using a combination of keywords and controlled vocabulary related to chronic neuropathic pain and oral non-pharmacological supplements. Studies on adult humans published between 2000 and 2021 were considered for inclusion. The Cochrane Handbook was used to assess risk of bias, and Grading of Recommendations Assessment, Development, and Evaluation was used to determine overall quality of evidence. FINDINGS: Forty studies were included in the final review, and results were categorized according to pain type including pain related to chemotherapy-induced peripheral neuropathy (CIPN, 22 studies, including 3 prospective cohorts), diabetic peripheral neuropathy (DPN, 13 studies, including 2 prospective), complex regional pain syndrome (CRPS-I, 3 studies, including 1 prospective), and other (2 studies, both RCT). The CIPN studies used various interventions including goshajinkigan (4 studies), vitamin E (5), vitamin B12 (3), glutamine (3), N-acetyl-cysteine (2), acetyl-l-carnitine (2), guilongtonluofang (1), ninjin'yoeito (1), alpha-lipoic acid (1), l-carnosine (1), magnesium and calcium (1), crocin (1), and antioxidants (1), with some studies involving multiple interventions. All CIPN studies involved varying cancers and/or chemotherapies, advising caution for generalizability of results. Interventions for DPN included alpha-lipoic acid (5 studies), vitamin B12 (3), acetyl-l-carnitine (3), vitamin E (1), vitamin D (2), and a low-fat plant-based diet (1). Vitamin C was studied to treat CRPS-I (3 studies, including 1 prospective). Magnesium (1) and St. John's wort (1) were studied for other or mixed neuropathologies. CONCLUSIONS: Based on the review, we cannot recommend any supplement use for the management of CIPN, although further research into N-acetyl-cysteine, l-carnosine, crocin, and magnesium is warranted. Acetyl-l-carnitine was found to be likely ineffective or harmful. Alpha-lipoic acid was not found effective. Studies with goshajinkigan, vitamin B12, vitamin E, and glutamine had conflicting results regarding efficacy, with one goshajinkigan study finding it harmful. Guilongtonluofang, ninjin'yoeito, and antioxidants showed various degrees of potential effectiveness. Regarding DPN, our review supports the use of alpha-lipoic acid, acetyl-l-carnitine, and vitamin D. The early use of vitamin C prophylaxis for the development of CRPS-I also seems promising. Further research is warranted to confirm these findings.


Assuntos
Carnosina , Síndromes da Dor Regional Complexa , Neuralgia , Ácido Tióctico , Humanos , Adulto , Acetilcarnitina/uso terapêutico , Magnésio/uso terapêutico , Ácido Tióctico/uso terapêutico , Carnosina/uso terapêutico , Glutamina/uso terapêutico , Cisteína/uso terapêutico , Estudos Prospectivos , Suplementos Nutricionais , Vitaminas/uso terapêutico , Neuralgia/tratamento farmacológico , Vitamina E/uso terapêutico , Ácido Ascórbico/uso terapêutico , Dieta , Antioxidantes/uso terapêutico , Vitamina B 12 , Vitamina D/uso terapêutico
8.
Diabetologia ; 67(1): 52-61, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37922013

RESUMO

AIMS/HYPOTHESIS: Hypomagnesaemia has been associated with insulin resistance and an increased risk of type 2 diabetes. Whether magnesium supplementation improves insulin sensitivity in people with type 2 diabetes and a low serum magnesium level is unknown. METHODS: Using a randomised, double-blind (both participants and investigators were blinded to the participants' treatment sequences), placebo-controlled, crossover study design, we compared the effect of oral magnesium supplementation (15 mmol/day) for 6 weeks with that of matched placebo in individuals with insulin-treated type 2 diabetes (age ≥18 years, BMI 18-40 kg/m2, HbA1c <100 mmol/mol [11.3%], serum magnesium ≤0.79 mmol/l). Participants were recruited from the outpatient clinic and through advertisements. Randomisation to a treatment sequence order was done using a randomisation list. We used block randomisation and the two possible treatment sequences were evenly distributed among the trial population. The primary outcome was the mean glucose infusion rate during the final 30 min of a hyperinsulinaemic-euglycaemic clamp (i.e. M value). Secondary outcomes included variables of glucose control, insulin need, BP, lipid profile and hypomagnesaemia-related symptoms during follow-up. RESULTS: We recruited 14 participants (50% women, 100% White, mean ± SD age 67±6 years, BMI 31±5 kg/m2, HbA1c 58±9 mmol/mol [7.4±0.9%]) with insulin-treated type 2 diabetes. Magnesium supplementation increased both mean ± SEM serum magnesium level (0.75±0.02 vs 0.70±0.02 mmol/l, p=0.016) and urinary magnesium excretion (magnesium/creatinine ratio, 0.23±0.02 vs 0.15±0.02, p=0.005), as compared with placebo. The M value of the glucose clamp did not differ between the magnesium and placebo study arms (4.6±0.5 vs 4.4±0.6 mg kg-1 min-1, p=0.108). During the 6 weeks of treatment, continuous glucose monitoring outcomes, HbA1c, insulin dose, lipid profile and BP also did not differ, except for a lower HDL-cholesterol concentration after magnesium compared with placebo (1.14±0.08 vs 1.20±0.09 mmol/l, p=0.026). Symptoms potentially related to hypomagnesaemia were similar for both treatment arms. CONCLUSIONS/INTERPRETATION: Despite an albeit modest increase in serum magnesium concentration, oral magnesium supplementation does not improve insulin sensitivity in people with insulin-treated type 2 diabetes and low magnesium levels. TRIAL REGISTRATION: EudraCT number 2021-001243-27. FUNDING: This study was supported by a grant from the Dutch Diabetes Research Foundation (2017-81-014).


Assuntos
Diabetes Mellitus Tipo 2 , Resistência à Insulina , Magnésio , Adolescente , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Glicemia , Automonitorização da Glicemia , Estudos Cross-Over , Suplementos Nutricionais , Método Duplo-Cego , Hipoglicemiantes/uso terapêutico , Insulina/uso terapêutico , Lipídeos , Magnésio/administração & dosagem , Magnésio/uso terapêutico
9.
Eur J Obstet Gynecol Reprod Biol ; 293: 84-90, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38128389

RESUMO

BACKGROUND: The efficacy of magnesium supplementation is unclear for the treatment of gestational diabetes. This meta-analysis aimed to study the efficacy of magnesium supplementation for glycemic control and pregnant outcomes in women with gestational diabetes. METHODS: Several databases including PubMed, EMbase, Web of science, EBSCO, and Cochrane library databases have been systematically searched up to July 2023, and we included randomized controlled trials (RCTs) assessing the efficacy of magnesium supplementation for gestational diabetes. The meta-analysis was performed using the random-effect model or fixed-effect model based on the heterogeneity. RESULTS: Five RCTs and 266 patients were included in the meta-analysis. Overall, compared with control intervention for gestational diabetes, magnesium supplementation was able to significantly decrease FPG (MD = -7.33 mg/dL; 95 % CI = -7.64 to -7.02 mg/dL; P < 0.00001) and HOMA-IR (MD = -0.99; 95 % CI = -1.76 to -0.22; P = 0.01), but resulted in no obvious impact on serum insulin (MD = -4.17 µIU/mL; 95 % CI = -8.49 to 0.14 µIU/mL; P = 0.06), preterm delivery (OR = 0.42; 95 % CI = 0.06 to 2.95; P = 0.38), macrosomia (OR = 0.34; 95 % CI = 0.08 to 1.35; P = 0.13) or BMI change (MD = -0.01 kg/m2; 95 % CI = -0.06 to 0.04 kg/m2; P = 0.63). CONCLUSIONS: Magnesium supplementation may be effective for the treatment of gestational diabetes without taking insulin treatment.


Assuntos
Diabetes Gestacional , Resistência à Insulina , Insulinas , Humanos , Gravidez , Feminino , Recém-Nascido , Diabetes Gestacional/tratamento farmacológico , Magnésio/uso terapêutico , Suplementos Nutricionais , Ensaios Clínicos Controlados Aleatórios como Assunto
10.
Nutrients ; 15(19)2023 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-37836507

RESUMO

Hypertension is the leading preventable risk factor for cardiovascular disease and all-cause mortality worldwide. However, studies have shown increased risk of mortality from heart disease and stroke even within the normal blood pressure (BP) range, starting at BPs above 110-115/70-75 mm Hg. Nutraceuticals, such as vitamins and minerals, have been studied extensively for their efficacy in lowering BP and may be of benefit to the general, normotensive population in achieving optimal BP. Our study investigated the effects of six nutraceuticals (Vitamins: C, D, E; Minerals: Calcium, Magnesium, Potassium) on both systolic blood pressure (SBP) and diastolic blood pressure (DBP) in this population. We performed a systematic review and pairwise meta-analysis for all six supplements versus placebo. Calcium and magnesium achieved significant reductions in both SBP and DBP of -1.37/-1.63 mm Hg and -2.79/-1.56 mm Hg, respectively. Vitamin E and potassium only yielded significant reductions in SBP with values of -1.76 mm Hg and -2.10 mm Hg, respectively. Vitamins C and D were not found to significantly lower either SBP or DBP. Future studies should determine optimal dosage and treatment length for these supplements in the general, normotensive population.


Assuntos
Hipertensão , Hipotensão , Humanos , Vitaminas , Pressão Sanguínea , Magnésio/farmacologia , Magnésio/uso terapêutico , Cálcio/farmacologia , Suplementos Nutricionais , Hipertensão/epidemiologia , Minerais/farmacologia , Minerais/uso terapêutico , Hipotensão/tratamento farmacológico , Cálcio da Dieta/farmacologia , Potássio/farmacologia , Anti-Hipertensivos/farmacologia
11.
Medicine (Baltimore) ; 102(43): e35532, 2023 Oct 27.
Artigo em Inglês | MEDLINE | ID: mdl-37904395

RESUMO

Chronic musculoskeletal pain (CMP) is associated with an increased risk of cardiovascular disease (CVD). This study aimed to determine the factors associated with the intensity of CMP in patients with underlying CVD and to evaluate the efficacy of Ice Power Magnesium In Strong Cream in patients with muscle cramps. We investigated 396 patients with or without CMP who visited an outpatient cardiology clinic and analyzed the features of CMP and factors associated with pain intensity and specific types of CVD in study 1. We also analyzed 73 patients who had muscle cramps in the lower extremities in study 2 to evaluate the efficacy of Ice Power Magnesium In Strong Cream in reducing pain intensity. In study 1, multivariable linear regression analysis showed that older age (regression coefficient [B] = 0.66, 95% confidence interval [CI], 0.07-1.24), female sex (B = 1.18, 95% CI, 0.59-1.76), presence of hypertension (B = 0.69, 95% CI, 0.05-1.33), and use of calcium supplements (B = 1.27, 95% CI, 0.31-2.24) were significantly associated with a higher intensity of CMP. In study 2, the mean pain scores at baseline, week 2 and week 4 after treatment were 5.99 ± 2.12, 2.92 ± 2.63, and 1.90 ± 2.41, respectively, and the reductions were significant at both week 2 and week 4 after treatment (P < .05). Older age, female sex, hypertension, and use of calcium supplements were associated with an increased intensity of CMP. Ice Power Magnesium In Strong Cream was effective in reducing the pain intensity of muscle cramps in the lower extremities.


Assuntos
Doenças Cardiovasculares , Dor Crônica , Hipertensão , Dor Musculoesquelética , Humanos , Feminino , Cãibra Muscular/tratamento farmacológico , Cãibra Muscular/complicações , Magnésio/uso terapêutico , Doenças Cardiovasculares/complicações , Dor Musculoesquelética/tratamento farmacológico , Dor Musculoesquelética/etiologia , Emulsões , Cálcio , Gelo , Hipertensão/complicações , Dor Crônica/tratamento farmacológico , Dor Crônica/complicações
12.
J Surg Oncol ; 128(7): 1141-1149, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37702402

RESUMO

INTRODUCTION: Hyperthermic intraoperative cisplatin (HIOC) is associated with acute kidney injury (AKI). Administration of high-dose magnesium attenuates cisplatin-induced AKI (CP-AKI) in animal models but has not been rigorously examined in humans. METHODS: We tested the feasibility and safety of different doses of magnesium in mesothelioma patients receiving HIOC. In Pilot Study 1, we administered a 36-h continuous infusion of magnesium at 0.5 g/h, targeting serum magnesium levels between 3 and 4.8 mg/dL. In Pilot Study 2A, we administered a 6 g bolus followed by an infusion starting at 2 g/h, titrated to achieve levels between 4 and 6 mg/dL. We eliminated the bolus in Pilot Study 2B. RESULTS: In Pilot Study 1, all five patients enrolled completed the study; however, median postoperative Mg levels were only 2.4 mg/dL. In Pilot Study 2A, two of four patients (50%) were withdrawn due to bradycardia during the bolus. In Pilot Study 2B, two patients completed the study whereas two developed postoperative bradycardia attributed to the magnesium. CONCLUSIONS: A 0.5 g/h infusion for 36 h did not achieve therapeutic magnesium levels, while an infusion at 2 g/h was associated with bradycardia. These studies informed the design of a randomized clinical trial testing whether intravenously Mg attenuates HIOC-associated AKI.


Assuntos
Injúria Renal Aguda , Mesotelioma Maligno , Mesotelioma , Humanos , Cisplatino/efeitos adversos , Projetos Piloto , Magnésio/uso terapêutico , Bradicardia/induzido quimicamente , Bradicardia/tratamento farmacológico , Mesotelioma/tratamento farmacológico , Mesotelioma Maligno/induzido quimicamente , Mesotelioma Maligno/tratamento farmacológico , Injúria Renal Aguda/induzido quimicamente , Injúria Renal Aguda/tratamento farmacológico
14.
Medicina (Kaunas) ; 59(7)2023 Jun 24.
Artigo em Inglês | MEDLINE | ID: mdl-37512002

RESUMO

Hypermagnesemia is a relatively uncommon but potentially life-threatening electrolyte disturbance characterized by elevated magnesium concentrations in the blood. Magnesium is a crucial mineral involved in various physiological functions, such as neuromuscular conduction, cardiac excitability, vasomotor tone, insulin metabolism, and muscular contraction. Hypomagnesemia is a prevalent electrolyte disturbance that can lead to several neuromuscular, cardiac, or nervous system disorders. Hypermagnesemia has been associated with adverse clinical outcomes, particularly in hospitalized patients. Prompt identification and management of hypermagnesemia are crucial to prevent complications, such as respiratory and cardiovascular negative outcomes, neuromuscular dysfunction, and coma. Preventing hypermagnesemia is crucial, particularly in high-risk populations, such as patients with impaired renal function or those receiving magnesium-containing medications or supplements. Clinical management of hypermagnesemia involves discontinuing magnesium-containing therapies, intravenous fluid therapy, or dialysis in severe cases. Furthermore, healthcare providers should monitor serum magnesium concentration in patients at risk of hypermagnesemia and promptly intervene if the concentration exceeds the normal range.


Assuntos
Magnésio , Doenças Metabólicas , Humanos , Magnésio/uso terapêutico , Diálise Renal , Suplementos Nutricionais , Eletrólitos
15.
Wiad Lek ; 76(2): 360-369, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37010174

RESUMO

OBJECTIVE: The aim: The current study was designed for evaluation the effect of oral magnesium l-lactate supplementation on blood pressure and corrected QT interval in a sample of Iraqi women. PATIENTS AND METHODS: Materials and methods: In this interventional prospective randomized trial, 58 female patients diagnosed with MetS according to the International Diabetic Federation (IDF) criteria and were randomly allocated to receive either placebo or magnesium l-lactate 84 mg, twice daily. RESULTS: Results: O#ce blood pressure showed a signi$cant drop in systolic blood pressure (SBP) (P<0.05), non-significant decline in diastolic blood pressure (DBP), heart rate (HR), and pulse pressure (PP) (P>0.05), while ambulatory blood pressure monitoring (ABPM) recorded a signi$cant reduction in HR in patients on magnesium supplement. Also, there was a signi$cant decline in the SBP (P<0.05) and non-signi$cant decline in DBP and PP (P>0.05) in patients with masked hypertension on Mg supplement. The changes in corrected QT- interval had no signi$cant e"ect within Mg group (P>0.05). CONCLUSION: Conclusions: From above results, one can conclude that oral Mg l-lactate supplement can improve, to a certain extent, blood pressure of women with MetS. Further studies in this aspect may be required.


Assuntos
Hipertensão , Síndrome Metabólica , Humanos , Feminino , Pressão Sanguínea/fisiologia , Magnésio/uso terapêutico , Monitorização Ambulatorial da Pressão Arterial/métodos , Ácido Láctico/uso terapêutico , Estudos Prospectivos , Iraque
16.
Rinsho Shinkeigaku ; 63(5): 286-290, 2023 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-37100625

RESUMO

A 66-year-old Japanese man was referred to our hospital with myalgia and muscle weakness. He had a history of rectal cancer, which invaded into the urinary bladder and ileum and was treated with chemotherapy, radiotherapy, resection of the rectum, colostomy, and ileal conduit construction. He showed recurrent markedly elevated serum creatine kinase levels and concurrent hypocalcemia. Muscle magnetic resonance imaging demonstrated abnormal signals in the proximal limb muscles, and needle electromyography showed myopathic changes. Further examination revealed hypomagnesemia and hyposelenemia with underlying short bowel syndrome. Calcium, magnesium and selenium supplementation improved his symptoms and laboratory findings.


Assuntos
Hipocalcemia , Doenças Musculares , Neoplasias Retais , Síndrome do Intestino Curto , Masculino , Humanos , Idoso , Hipocalcemia/etiologia , Hipocalcemia/diagnóstico , Hipocalcemia/tratamento farmacológico , Magnésio/uso terapêutico , Reto , Doenças Musculares/diagnóstico , Neoplasias Retais/cirurgia , Creatina Quinase
17.
Alcohol Alcohol ; 58(3): 329-335, 2023 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-37012631

RESUMO

OBJECTIVE: Alcohol withdrawal syndrome (AWS) is a frequent and potentially life-threatening condition experienced in alcohol use disorder. Since hypomagnesemia is involved in AWS's severity, we conducted a multicenter double-blind randomized placebo-controlled trial to examine the efficacy of oral magnesium supplementation as an adjuvant therapy of AWS. MATERIAL AND METHODS: Inpatients were recruited in six different centers if they had a baseline score higher than eight on the Revised Clinical Institute Withdrawal Assessment for Alcohol (CIWA-Ar). The experimental treatment was magnesium lactate dehydrate, administrated three times per day providing a total of 426.6 mg per day and up to 15 days. The primary endpoint was the significant between-group difference of the CIWA-Ar total score change from baseline to 3 days later. The treatment group and baseline score were introduced as covariables in an analysis of covariance. RESULTS: A total of 98 inpatients were included {71.4% of men; mean age of 49.1 years [standard deviation (SD): 10.3]}. In the intention-to-treat population, the mean reduction of the CIWA-Ar score in the experimental group between baseline and 3 days later was 10.1 (SD: 5.2), whereas it was 9.2 (SD: 3.9) in the control group. The absolute difference of the adjusted mean in the experimental group compared with the control group was -0.69 (SD: 0.72), which did not correspond to a significant between-group difference (P = 0.34). Per-protocol analysis and sensitivity analyses also supported this result. Supplementary analyses found no significant difference regarding benzodiazepine consumption, magnesium blood concentration, and satisfaction to care. CONCLUSIONS: The present study does not support the rationale of systematic oral magnesium supplementation in patients with AWS.


Assuntos
Alcoolismo , Magnésio , Síndrome de Abstinência a Substâncias , Magnésio/administração & dosagem , Magnésio/efeitos adversos , Magnésio/sangue , Magnésio/uso terapêutico , Síndrome de Abstinência a Substâncias/complicações , Síndrome de Abstinência a Substâncias/tratamento farmacológico , Alcoolismo/complicações , Alcoolismo/tratamento farmacológico , Humanos , Masculino , Feminino , Administração Oral , Método Duplo-Cego , Benzodiazepinas/uso terapêutico , Pessoa de Meia-Idade , Diarreia/induzido quimicamente
18.
Endocr Rev ; 44(3): 357-378, 2023 05 08.
Artigo em Inglês | MEDLINE | ID: mdl-36346820

RESUMO

Hypomagnesemia is 10-fold more common in individuals with type 2 diabetes (T2D) than in the healthy population. Factors that are involved in this high prevalence are low Mg2+ intake, gut microbiome composition, medication use, and presumably genetics. Hypomagnesemia is associated with insulin resistance, which subsequently increases the risk to develop T2D or deteriorates glycemic control in existing diabetes. Mg2+ supplementation decreases T2D-associated features like dyslipidemia and inflammation, which are important risk factors for cardiovascular disease (CVD). Epidemiological studies have shown an inverse association between serum Mg2+ and the risk of developing heart failure (HF), atrial fibrillation (AF), and microvascular disease in T2D. The potential protective effect of Mg2+ on HF and AF may be explained by reduced oxidative stress, fibrosis, and electrical remodeling in the heart. In microvascular disease, Mg2+ reduces the detrimental effects of hyperglycemia and improves endothelial dysfunction; however, clinical studies assessing the effect of long-term Mg2+ supplementation on CVD incidents are lacking, and gaps remain on how Mg2+ may reduce CVD risk in T2D. Despite the high prevalence of hypomagnesemia in people with T2D, routine screening of Mg2+ deficiency to provide Mg2+ supplementation when needed is not implemented in clinical care as sufficient clinical evidence is lacking. In conclusion, hypomagnesemia is common in people with T2D and is involved both as cause, probably through molecular mechanisms leading to insulin resistance, and as consequence and is prospectively associated with development of HF, AF, and microvascular complications. Whether long-term supplementation of Mg2+ is beneficial, however, remains to be determined.


Assuntos
Doenças Cardiovasculares , Diabetes Mellitus Tipo 2 , Resistência à Insulina , Humanos , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Fatores de Risco , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/complicações , Magnésio/uso terapêutico , Fatores de Risco de Doenças Cardíacas
19.
Biol Trace Elem Res ; 201(6): 2895-2903, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36006540

RESUMO

Magnesium ions are essential elements to the human body, with a daily intake of about 350 mg for an adult. Recently, a meta-analysis reported that magnesium ion intake is related to a reduced risk of colorectal tumors. In addition, implantation of biodegradable magnesium pins after colorectal tumor resection could potentially inhibit the residual tumor cells. These impressive results implied that magnesium ions possess inhibitory properties against colorectal carcinoma. However, this hypothesis has yet to be confirmed by experimental results. In this work, different concentrations of magnesium ions were modulated to investigate their inhibitory effects on cell viability through cell cycle arrest, subsequently inducing apoptosis by activating the caspase-3 pathway. The animal experiments revealed that magnesium injection restricted tumor growth after 3 weeks of treatment compared to the control group. According to the immunohistochemistry and transmission electron microscopy results, the remarkable effect may be attributed to promoting the apoptotic rate of tumor cells. The evidence highlights the potential for the clinical use of magnesium implants to inhibit the growth of residual cells after colorectal tumor surgery.


Assuntos
Neoplasias Colorretais , Magnésio , Animais , Humanos , Apoptose , Pontos de Checagem do Ciclo Celular , Proliferação de Células , Neoplasias Colorretais/patologia , Íons , Magnésio/farmacologia , Magnésio/uso terapêutico
20.
Biol Trace Elem Res ; 201(1): 121-128, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35184264

RESUMO

To date, no study has critically reviewed the current literature on the association between magnesium (Mg) and sleep health. Therefore, we carried out a systematic review to assess the association between Mg and sleep patterns in adults' population through observational and interventional studies. We searched for relevant studies through PubMed ( http://www.ncbi.nlm.nih.gov/pubmed ), Scopus ( http://www.scopus.com ), and ISI Web of Science ( http://www.webofscience.com ) from the earliest available date until November 2021. Eligibility criteria for study selection were guided by the following components identified using the PI(E)CO (Population, Intervention (Exposure), Comparison, Outcome) framework: P (adult population), I(E) (high dietary intake or supplementation of Mg), C (low dietary intake of Mg or placebo group), and O (sleep pattern including sleep duration, sleep-onset latency, night awakenings, sleep stages, and sleep phases). The present study involved 7,582 subjects from 9 published cross-sectional, cohort, and RCT systematically reviewed the possible links between Mg and sleep quality (daytime falling asleep, sleepiness, snoring, and sleep duration) in an adult population. Observational studies suggested an association between Mg statuses and sleep quality, while the RCTs reported contradictory findings. This systematic review revealed an association between magnesium status and sleep quality (daytime falling asleep, sleepiness, snoring, and sleep duration) according to the observational studies, while the randomized clinical trials showed an uncertain association between magnesium supplementation and sleep disorders. The association between dietary magnesium and sleep patterns needs well-designed randomized clinical trials with a larger sample size and longer follow-up time (more than 12 weeks) to further clarify the relationship.


Assuntos
Magnésio , Ronco , Adulto , Humanos , Magnésio/uso terapêutico , Estudos Transversais , Sonolência , Sono
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