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Search Results (187)

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Keywords = serum electrolyte

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9 pages, 1703 KiB  
Article
Plasma/Serum Electrolyte and Metabolite Testing on Blood Gas Analyzer ABL837, a New Application
by Vera Y. Chen, Rachel Fullarton and Yu Chen
Diagnostics 2025, 15(15), 1923; https://doi.org/10.3390/diagnostics15151923 - 31 Jul 2025
Viewed by 220
Abstract
Background: Core laboratory chemistry analyzers typically use plasma and serum samples, while blood gas instruments use whole blood for electrolyte and metabolite tests. Due to high costs to back up the core lab chemistry analyzers, especially in the remote small community hospitals, [...] Read more.
Background: Core laboratory chemistry analyzers typically use plasma and serum samples, while blood gas instruments use whole blood for electrolyte and metabolite tests. Due to high costs to back up the core lab chemistry analyzers, especially in the remote small community hospitals, we have verified the interchangeability of serum/plasma electrolytes and metabolites on blood gas instruments (GEM4000 and Radiometer ABL90) vs. chemistry analyzers. In this study, we sought to extend the investigation to another blood gas device—Radiometer ABL837. Methods: One plasma separator tube and one serum separator tube were drawn from 20 apparently healthy individuals and outpatients and 20 intensive care unit patients. All the samples were run on Roche Cobas8000, and then were run on three Radiometer ABL837 analyzers for sodium (Na+), potassium (K+), chloride (Cl), glucose, lactate (plasma only), and creatinine parameters. Paired measurements between the ABL837 and Cobas8000 were compared, and their difference were assessed for statistical and clinical significance. Results: ABL837 demonstrated statistical significance (p < 0.05) vs. Cobas8000 on all the plasma and serum parameters. However, no parameter differences were found when comparing the plasma/serum results on ABL837 to those on Cobas8000, indicating that none were clinically significant. ABL837 also demonstrated good–excellent correlations with Cobas8000 on all the parameters. Conclusions: When comparing metabolite and electrolyte values with plasma and serum sample types, the ABL837 blood gas instruments and Cobas 8000 chemistry analyzer are interchangeable. These data proves that ABL837 can be used as a backup for a chemistry analyzer in measuring plasma and serum electrolyte and metabolite concentrations. Full article
(This article belongs to the Special Issue Recent Advances in Clinical Biochemistry)
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9 pages, 275 KiB  
Article
The Effect of Different Intraperitoneal Hyperthermic Chemotherapy (HIPEC) Regimens on Serum Electrolyte Levels: A Comparison of Oxaliplatin and Mitomycin C
by Vural Argın, Mehmet Ömer Özduman, Ahmet Orhan Sunar, Mürşit Dinçer, Aziz Serkan Senger, Selçuk Gülmez, Orhan Uzun, Mustafa Duman and Erdal Polat
Medicina 2025, 61(8), 1345; https://doi.org/10.3390/medicina61081345 - 25 Jul 2025
Viewed by 221
Abstract
Background and Objectives: This study aimed to compare the effects of HIPEC procedures using oxaliplatin and mitomycin C on serum electrolyte, glucose, and lactate levels, with a specific focus on the carrier solutions employed. Materials and Methods: A retrospective analysis was [...] Read more.
Background and Objectives: This study aimed to compare the effects of HIPEC procedures using oxaliplatin and mitomycin C on serum electrolyte, glucose, and lactate levels, with a specific focus on the carrier solutions employed. Materials and Methods: A retrospective analysis was performed on 82 patients who underwent cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC) for colorectal peritoneal metastases. Patients were assigned to one of two groups based on the chemotherapeutic agent used: oxaliplatin (n = 63) or mitomycin C (MMC, n = 19). The oxaliplatin group was further subdivided based on the carrier solution used: 5% dextrose (D5W, n = 29) or peritoneal dialysate (n = 34). The assignment of regimens was based on institutional protocols and surgeon preference. Pre- and post-HIPEC serum levels of sodium, potassium, bicarbonate, glucose, and lactate were compared. Results: Significant biochemical changes were observed across groups, depending on both the chemotherapeutic agent and carrier solution. In the MMC group (peritoneal dialysate), only lactate increased significantly post-HIPEC (p = 0.001). In the oxaliplatin–peritoneal dialysate group, significant changes were observed in bicarbonate (p = 0.009), glucose (p = 0.001), and lactate (p < 0.001), whereas sodium and potassium remained stable. The oxaliplatin–D5W group showed significant changes in all parameters: sodium (p = 0.001), potassium (p = 0.001), bicarbonate (p = 0.001), glucose (p < 0.001), and lactate (2.4 → 7.6 mmol/L, p < 0.001). Between-group comparisons revealed significant differences in sodium, potassium, glucose, and lactate changes (p < 0.05), but not in bicarbonate (p = 0.099). Demographic and clinical characteristics—including age, sex, primary disease, ICU stay, and 90-day mortality were similar across groups. Conclusions: The use of dextrose-containing solutions with oxaliplatin was associated with marked metabolic disturbances, including clinically meaningful hyponatremia, hypokalemia, and hyperglycemia in the early postoperative period. These findings suggest that the choice of carrier solution is as important as the chemotherapeutic agent in terms of perioperative safety. Closer postoperative electrolyte monitoring is recommended when using dextrose-based regimens. The retrospective design and sample size imbalance between groups are acknowledged limitations. Nonetheless, this study offers clinically relevant insights and lays the groundwork for future prospective research. Full article
(This article belongs to the Special Issue Advances in Colorectal Surgery and Oncology)
17 pages, 751 KiB  
Review
The Role of Chloride in Cardiorenal Syndrome: A Practical Review
by Georgios Aletras, Maria Bachlitzanaki, Maria Stratinaki, Ioannis Petrakis, Theodora Georgopoulou, Yannis Pantazis, Emmanuel Foukarakis, Michael Hamilos and Kostas Stylianou
J. Clin. Med. 2025, 14(15), 5230; https://doi.org/10.3390/jcm14155230 - 24 Jul 2025
Viewed by 553
Abstract
Chloride, long considered a passive extracellular anion, has emerged as a key determinant in the pathophysiology and management of heart failure (HF) and cardiorenal syndrome. In contrast to sodium, which primarily reflects water balance and vasopressin activity, chloride exerts broader effects on neurohormonal [...] Read more.
Chloride, long considered a passive extracellular anion, has emerged as a key determinant in the pathophysiology and management of heart failure (HF) and cardiorenal syndrome. In contrast to sodium, which primarily reflects water balance and vasopressin activity, chloride exerts broader effects on neurohormonal activation, acid–base regulation, renal tubular function, and diuretic responsiveness. Its interaction with With-no-Lysine (WNK) kinases and chloride-sensitive transporters underscores its pivotal role in electrolyte and volume homeostasis. Hypochloremia, frequently observed in HF patients treated with loop diuretics, is independently associated with adverse outcomes, diuretic resistance, and arrhythmic risk. Conversely, hyperchloremia—often iatrogenic—may contribute to renal vasoconstriction and hyperchloremic metabolic acidosis. Experimental data also implicate chloride dysregulation in myocardial electrical disturbances and an increased risk of sudden cardiac death. Despite mounting evidence of its clinical importance, serum chloride remains underappreciated in contemporary risk assessment models and treatment algorithms. This review synthesizes emerging evidence on chloride’s role in HF, explores its diagnostic and therapeutic implications, and advocates for its integration into individualized care strategies. Future studies should aim to prospectively validate these associations, evaluate chloride-guided therapeutic interventions, and assess whether incorporating chloride into prognostic models can improve risk stratification and outcomes in patients with heart failure and cardiorenal syndrome. Full article
(This article belongs to the Special Issue New Insights into Cardiorenal Metabolic Syndrome)
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16 pages, 1969 KiB  
Article
Thirteen-Year Sequelae of Marburg Virus Disease Survival: Persistent Cardiometabolic, Immunometabolic, and Haematological Alterations in the Absence of Psychological Morbidity
by Jennifer Serwanga, Raymond Ernest Kaweesa, Joseph Katende Ssebwana, Goeffrey Odoch, Raymond Reuel Wayesu, Anne Daphine Ntabadde, Deborah Mukisa, Peter Ejou, FiloStudy Team, Julius Julian Lutwama and Pontiano Kaleebu
Pathogens 2025, 14(7), 678; https://doi.org/10.3390/pathogens14070678 - 9 Jul 2025
Viewed by 442
Abstract
Background: Marburg virus disease (MVD) is a highly lethal filoviral infection, yet its long-term health consequences remain poorly understood. We present one of the most temporally distant evaluations of MVD survivors, conducted 13 years post-outbreak in Uganda, offering novel insights into chronic [...] Read more.
Background: Marburg virus disease (MVD) is a highly lethal filoviral infection, yet its long-term health consequences remain poorly understood. We present one of the most temporally distant evaluations of MVD survivors, conducted 13 years post-outbreak in Uganda, offering novel insights into chronic physiological, biochemical, haematological, and psychosocial outcomes. Methods: A cross-sectional, community-based study compared ten MVD survivors with nineteen age- and sex-matched unexposed controls. Clinical evaluations included vital signs, anthropometry, mental health screening, and symptom reporting. Laboratory analyses covered electrolytes, inflammatory markers, renal and liver function tests, haematology, and urinalysis. Standardised psychological assessments measured anxiety, depression, perceived stigma, and social support. Findings: Survivors exhibited an elevated body mass index (BMI), higher systolic and diastolic blood pressure, and lower respiratory rates compared to controls, indicating ongoing cardiometabolic and autonomic changes. These trends may reflect persistent cardiometabolic stress and potential alterations in autonomic regulation, warranting further investigation. Biochemically, survivors exhibited disruptions in serum chloride, bilirubin, and total protein levels, suggesting subclinical hepatic and renal stress. Haematological analysis revealed persistent reticulocytosis despite normal haemoglobin levels, indicating long-term erythropoietic modulation. Despite these physiological changes, survivors reported minimal psychological morbidity, sharply contrasting with the post-recovery profiles of other viral haemorrhagic fevers. Stigma was prevalent during the outbreak; however, strong family support alleviated long-term psychosocial distress. Interpretation: Thirteen years post-infection, MVD survivors demonstrate multisystem physiological perturbations without marked psychological sequelae. These findings challenge assumptions of universal post-viral trauma and highlight the necessity for tailored survivor care models. Future longitudinal studies should investigate the mechanistic pathways underlying cardiometabolic and haematological reprogramming to inform intervention strategies in resource-limited settings. Full article
(This article belongs to the Special Issue Marburg Virus)
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13 pages, 786 KiB  
Article
Prevalence, Risk Factors and Potential Protective Strategies for Hypomagnesemia in Kidney Transplant Recipients
by Cristina Riaza Ortiz, Carlos Fernández Fernández, Marina Pujol Pujol, María Muñiz Rincón, Arianne Sofía Aiffil Meneses, Isabel María Pérez Flores, Natividad Calvo Romero, María Ángeles Moreno de la Higuera, Beatriz Rodríguez Cubillo, Raquel Ramos Corral and Ana Isabel Sánchez Fructuoso
Int. J. Mol. Sci. 2025, 26(13), 6528; https://doi.org/10.3390/ijms26136528 - 7 Jul 2025
Viewed by 442
Abstract
Hypomagnesemia is the most common electrolyte disorder in kidney transplant recipients (KTR), yet its causes remain unclear. Few studies have explored its underlying factors. This study aimed to assess its prevalence and identify risk factors in KTR. We conducted a retrospective cross-sectional study [...] Read more.
Hypomagnesemia is the most common electrolyte disorder in kidney transplant recipients (KTR), yet its causes remain unclear. Few studies have explored its underlying factors. This study aimed to assess its prevalence and identify risk factors in KTR. We conducted a retrospective cross-sectional study in 489 outpatient KTR. Demographic, clinical, and laboratory data were collected. Univariate and multivariate logistic regression analyses were used to identify factors associated with hypomagnesemia (≤1.7 mg/dL). Hypomagnesemia was present in 50.7% of patients. Multivariate analysis identified tacrolimus [OR 2.91 (1.62–5.22)], thiazides [OR 2.23 (1.21–4.08)], cinacalcet [OR 2.31 (1.29–4.13)], serum phosphate < 3.7 mg/dL [1.99 (1.29–3.05)], serum calcium ≤ 10 mg/dL [1.99 (1.29–3.05)] and diabetes [1.94 (1.22–3.08)] as risk factors. Protective factors included SGLT2 inhibitors (SGLT2i) [OR 0.17 (0.10–0.27)] and mTOR inhibitors (mTORi) [OR 0.62 (0.38–0.98)]. Among hypomagnesemic patients, those receiving Mg2+ supplements had lower Mg2+ levels [1.54 (0.15) vs. 1.59 (0.13) mg/dL, p = 0.005] and higher fractional Mg2+ excretion [8.28 (4.48)% vs. 7.36 (4.19)%, p = 0.05]. Hypomagnesemia is highly prevalent in KTR. Tacrolimus, thiazides, and cinacalcet are key risk factors and, in some patients, risks and benefits of continuing these medications should be carefully weighed. In refractory cases, SGLT2i or mTORi may offer benefit. Full article
(This article belongs to the Section Molecular Pathology, Diagnostics, and Therapeutics)
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16 pages, 1241 KiB  
Article
Nutritional and Biochemical Outcomes After Total Versus Subtotal Gastrectomy: Insights into Early Postoperative Prognosis
by Fawzy Akad, Cristinel Ionel Stan, Florin Zugun-Eloae, Sorin Nicolae Peiu, Nada Akad, Dragos-Valentin Crauciuc, Marius Constantin Moraru, Cosmin Gabriel Popa, Liviu-Ciprian Gavril, Roxana-Florentina Sufaru, Cristina Preda and Veronica Mocanu
Nutrients 2025, 17(13), 2146; https://doi.org/10.3390/nu17132146 - 27 Jun 2025
Viewed by 485
Abstract
Gastric cancer remains a significant global health burden, with curative treatment relying on surgical resection, typically total or subtotal gastrectomy. However, the procedure frequently triggers acute metabolic and nutritional disturbances that may impact recovery. Objective: This prospective study aimed to investigate whether [...] Read more.
Gastric cancer remains a significant global health burden, with curative treatment relying on surgical resection, typically total or subtotal gastrectomy. However, the procedure frequently triggers acute metabolic and nutritional disturbances that may impact recovery. Objective: This prospective study aimed to investigate whether the type of gastrectomy (total vs. subtotal) influences early postoperative biochemical and hematological alterations, with particular attention to nutritional impact. Methods: A cohort of 295 patients (123 female, 172 male) who underwent gastrectomy for gastric cancer at the Institute of Oncology Iași (2023–2024) was evaluated. Laboratory parameters, including hemoglobin, hematocrit, lymphocyte and platelet counts, serum albumin, total protein, sodium, potassium, creatinine, and urea, were analyzed preoperatively and on postoperative day 14 using standard clinical methods. Results: Anemia was observed in over 90% of patients, irrespective of sex or procedure type. Electrolyte imbalances (notably hyponatremia and hypokalemia) and indicators of nutritional deficit (hypoalbuminemia, low creatinine) were highly prevalent, with a greater frequency among female patients. Total gastrectomy was associated with more severe biochemical and nutritional alterations compared to subtotal procedures. Conclusions: Total gastrectomy significantly exacerbates early postoperative metabolic and nutritional derangements. These findings reinforce the need for proactive, personalized postoperative nutritional and electrolyte management strategies to support recovery and reduce complication risks. Full article
(This article belongs to the Special Issue Diet, Nutrition, Supplements and Integrative Oncology in Cancer Care)
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18 pages, 1000 KiB  
Article
Diabetic Ketoacidosis Is Associated with Lower Serum Sphingolipids but Higher β-Hydroxybutyrate and Lactate: A Pilot Study
by Ibrahim Aslan, Tuğçe Çeker, Tayfun Ustabaş, Vuslat Zorlu, Çağatay Yılmaz and Mutay Aslan
Pathophysiology 2025, 32(3), 29; https://doi.org/10.3390/pathophysiology32030029 - 26 Jun 2025
Viewed by 398
Abstract
Background/Objectives: Diabetic ketoacidosis (DKA) is an acute and severe complication of diabetes mellitus, marked by hyperglycemia, ketosis, and acidosis. It is associated with significant metabolic and inflammatory adjustments that can impact multiple biochemical pathways. This study aimed to determine the serum sphingolipid [...] Read more.
Background/Objectives: Diabetic ketoacidosis (DKA) is an acute and severe complication of diabetes mellitus, marked by hyperglycemia, ketosis, and acidosis. It is associated with significant metabolic and inflammatory adjustments that can impact multiple biochemical pathways. This study aimed to determine the serum sphingolipid profile in DKA and investigate its relationship with neutral sphingomyelinase (N-SMase), pro-inflammatory cytokines, β-hydroxybutyrate (β-OHB), and lactate levels. Methods: Thirty-three participants were divided into three groups: control (BMI ≤ 30, no health issues), obese (BMI > 30), and DKA (BMI ≤ 30). Sphingomyelins (16:0–24:0 SMs) and ceramides (C16–C24 CERs) were measured using ultra-fast liquid chromatography combined with tandem mass spectrometry (LC-MS/MS). N-SMase, interleukin 1 beta (IL-1β), and tumor necrosis factor alpha (TNF-α) levels were assessed by enzyme-linked immunosorbent assay. Evaluations were done in the DKA group before and after standard clinical treatment for DKA (post-DKA group), which included intravenous insulin therapy, fluid resuscitation, and electrolyte replacement, as per established clinical guidelines. Results: β-OHB levels were significantly higher in the DKA group than in the control, obese, and post-DKA groups. Although β-OHB levels decreased in the post-DKA group, they remained elevated compared to the control and obese groups. Lactate levels were also higher in the DKA group, with a significant decrease in the post-DKA group. TNF-α and IL-1β were higher in the obese group compared to control and DKA groups, and TNF-α decreased significantly in the post-DKA group compared to DKA. N-SMase, 16:0–18:0 SMs, and C18-C24 CER levels were lower in the DKA and post-DKA groups compared to obese and control groups. Serum β-OHB and lactate levels were significantly correlated with S1P, total CER, total SM, and N-SMase values. Conclusions: The study reveals significant metabolic and inflammatory differences in DKA and post-DKA states, suggesting a relationship between sphingolipids, N-SMase, and these alterations, which could offer insights into DKA pathophysiology and therapeutic targets. Full article
(This article belongs to the Section Metabolic Disorders)
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14 pages, 840 KiB  
Article
Efficacy and Safety of Fosfomycin Disodium in Patients with Bacterial Infections: A Single-Center, Real-Life Clinical Study
by Fabio Luciano, Lorenzo Bertolino, Fabian Patauner, Filomena Boccia, Raffaella Gallo, Pino Sommese, Anna Maria Carolina Peluso, Oriana Infante, Silvia Mercadante, Augusto Delle Femine, Arta Karruli, Roberto Andini, Rosa Zampino and Emanuele Durante-Mangoni
J. Clin. Med. 2025, 14(12), 4386; https://doi.org/10.3390/jcm14124386 - 19 Jun 2025
Viewed by 747
Abstract
Objectives: Fosfomycin is an old antibiotic that has recently gained attention owing to its preserved activity against multidrug-resistant (MDR) bacteria. Data on its use in real life are limited. Thus, we evaluated the efficacy and safety of fosfomycin disodium in the context of [...] Read more.
Objectives: Fosfomycin is an old antibiotic that has recently gained attention owing to its preserved activity against multidrug-resistant (MDR) bacteria. Data on its use in real life are limited. Thus, we evaluated the efficacy and safety of fosfomycin disodium in the context of our hospital clinical practice. Methods: Single-center, retrospective, observational study on 56 patients who received fosfomycin disodium from September 2016 to July 2023, focusing on clinical and microbiological outcomes and adverse events. Results: Included in this study were 56 patients. Fosfomycin disodium was administered for a median duration of 10 days [5–13.5] and was always used in combination with other antibiotics, more frequently with meropenem (16 cases, 28.6%) and colistin (11 cases, 19.6%). It was mostly used for treating pneumonia (41%), followed by bloodstream infections (19.6%), urinary tract infections (16.1%), bone infections (16.1%), and surgical site infections (7.1%). The most common isolated pathogen was Pseudomonas aeruginosa (17%), and polymicrobial infections were detected in 18 patients (32%). Among the isolated bacteria, 36 (44.4%) were MDR. The complete resolution, defined as the disappearance of symptoms, eradication of the causative microorganism, and decrease in CRP levels, was achieved in 39% of cases. During treatment, we observed electrolyte imbalances, in particular a decrease in serum potassium (0.6 mEq/L [0.3–1.1]), calcium (0.7 mEq/L [0.3–1.1]) and magnesium levels (0.3 mg/dL [0.20–0.48]), and an increase in serum sodium levels (4 mEq/dL [2–7]). Changes in potassium and sodium levels were more pronounced in patients with prior kidney dysfunction and heart failure, respectively, and in patients receiving fosfomycin diluted with saline compared with 5% glucose solution (p = 0.04). Conclusions: Fosfomycin is effective in treating complicated infections in comorbid patients when combined with other antimicrobials. During treatment, major electrolyte imbalances occur that require careful monitoring and correction, especially in patients with prior kidney disease. Full article
(This article belongs to the Section Infectious Diseases)
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14 pages, 1026 KiB  
Systematic Review
Potomania and Beer Potomania: A Systematic Review of Published Case Reports
by Keila S. Micoanski, Jose M. Soriano and Monica M. Gozalbo
Nutrients 2025, 17(12), 2012; https://doi.org/10.3390/nu17122012 - 16 Jun 2025
Viewed by 646
Abstract
Background/Objectives: Potomania and beer potomania are rare but important causes of dilutional hyponatremia, resulting from excessive fluid intake combined with low solute consumption. This systematic review aimed to identify and describe the clinical presentations, underlying causes, complications, and management approaches in published [...] Read more.
Background/Objectives: Potomania and beer potomania are rare but important causes of dilutional hyponatremia, resulting from excessive fluid intake combined with low solute consumption. This systematic review aimed to identify and describe the clinical presentations, underlying causes, complications, and management approaches in published case reports of these conditions. Methods: A systematic search was conducted in PubMed, Embase, Web of Science, and Scopus. Inclusion criteria were case reports and letters to the editor with confirmed diagnoses of potomania or beer potomania. The Joanna Briggs Institute (JBI) checklist was used to evaluate study quality. The SPIDER framework guided the selection process. A qualitative, narrative synthesis was performed. Results: Forty-four cases were included. Hyponatremia was the most frequent finding, commonly accompanied by neurological symptoms such as confusion and seizures. Beer potomania was more prevalent among male patients and associated with alcohol consumption and poor nutrition. Potomania was linked to restrictive diets, psychiatric disorders, or excessive intake of various non-alcoholic fluids. Management typically involved fluid restriction, correction of electrolytes, nutritional support, and psychiatric care. Five cases developed osmotic demyelination syndrome due to rapid sodium correction. Conclusions: Increased clinical awareness of potomania and beer potomania is essential to prevent severe outcomes. Early identification, individualized management, and cautious correction of serum sodium are crucial. Despite the limitations of case report evidence, this review provides meaningful insights into diagnosis and treatment. Full article
(This article belongs to the Special Issue Eating and Mental Health Disorders)
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14 pages, 937 KiB  
Article
Establishment and Validation of Sensitive Liquid Chromatography–Tandem Mass Spectrometry Method for Aldosterone Quantification in Feline Serum with Reference Interval Determination
by Tommaso Furlanello, Francesca Maria Bertolini, Andrea Zoia, Jose Sanchez del Pulgar and Riccardo Masti
Animals 2025, 15(12), 1687; https://doi.org/10.3390/ani15121687 - 6 Jun 2025
Viewed by 604
Abstract
Aldosterone, a mineralocorticoid hormone synthesised in the adrenal cortex, is essential for maintaining electrolyte balance and fluid homeostasis. Its role in feline physiology remains underexplored, despite its importance in regulating sodium reabsorption and potassium excretion via mineralocorticoid receptors in renal tubules. This study [...] Read more.
Aldosterone, a mineralocorticoid hormone synthesised in the adrenal cortex, is essential for maintaining electrolyte balance and fluid homeostasis. Its role in feline physiology remains underexplored, despite its importance in regulating sodium reabsorption and potassium excretion via mineralocorticoid receptors in renal tubules. This study is warranted given aldosterone’s importance in cats, particularly in light of their unique physiological traits, including highly concentrated urine and sensitivity to hydration status. Primary hyperaldosteronism, the most common feline adrenocortical disorder, contributes to arterial hypertension and chronic kidney disease, yet often remains underdiagnosed due to overlapping symptoms like hypokalaemia and hypertension. This research aimed to validate a liquid chromatography–tandem mass spectrometry (LC-MS/MS) method to measure serum aldosterone and to establish a reference interval in a population of healthy cats across a broad age range. The method demonstrated high precision and accuracy, with inter-assay coefficients of variation under 15%. Analysis of 49 healthy cats (40 young, 9 old) revealed a reference interval of 5.0–78.4 pg/mL (13.8–217.2 pmol/L). These findings provide a robust framework for diagnosing aldosterone-related disorders in cats and underscore the need for species-specific diagnostic tools. Improved understanding of aldosterone’s role could refine treatment strategies and enhance outcomes for affected feline patients. Full article
(This article belongs to the Special Issue Canine and Feline Endocrinology: Research Progress and Challenges)
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16 pages, 962 KiB  
Review
Understanding Refeeding Syndrome in Critically Ill Patients: A Narrative Review
by Raffaele Borriello, Giorgio Esposto, Maria Elena Ainora, Giorgio Podagrosi, Giuliano Ferrone, Irene Mignini, Linda Galasso, Antonio Gasbarrini and Maria Assunta Zocco
Nutrients 2025, 17(11), 1866; https://doi.org/10.3390/nu17111866 - 29 May 2025
Viewed by 2048
Abstract
Refeeding syndrome (RS) is defined as the spectrum of metabolic and biochemical disorders related to rapid nutritional replenishment after a prolonged period of fasting. It is caused by an abrupt shift in electrolytes and fluid among intra- and extracellular compartments, leading to metabolic [...] Read more.
Refeeding syndrome (RS) is defined as the spectrum of metabolic and biochemical disorders related to rapid nutritional replenishment after a prolonged period of fasting. It is caused by an abrupt shift in electrolytes and fluid among intra- and extracellular compartments, leading to metabolic disturbances like hypophosphatemia, vitamin deficiency, and fluid overload. RS often remains underdiagnosed due to variability in definition and diagnostic criteria adopted, overlapping clinical features with other complications and low awareness among clinicians. Critically ill individuals, particularly those admitted to intensive care units (ICUs), represent a cohort with peculiar features that may heighten RS risk due to their baseline frailty, frequent undernutrition, and the metabolic stress of acute illness. However, studies specifically conducted in ICU settings have yielded conflicting results regarding incidence rates, prognostic impact, and specific risk factors. Despite these differences, all evidence consistently highlights RS as a frequent and serious complication in critically ill patients. Early detection and prevention are essential, relying on prompt nutritional assessment at ICU admission, careful monitoring of serum electrolytes before and during refeeding, and a conservative caloric approach to nutrient reintroduction, alongside supportive therapy and electrolyte supplementation if RS manifestations occur. Clinicians should be aware of the significant prevalence and potential severity of RS in critically ill patients, along with the ongoing challenges related to its early recognition, prevention, and optimal nutritional management. This review aims to provide a comprehensive overview of the current knowledge on the incidence, prognostic impact, risk factors, clinical manifestations, and nutritional management of RS in critically ill patients while highlighting existing evidence gaps and key areas requiring clinical attention. Full article
(This article belongs to the Special Issue Nutritional Management in Intensive Care)
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14 pages, 2107 KiB  
Article
The Differential Modulatory Effects of Potassium Supplementation on Blood Pressure, Vascular Reactivity, Glomerular Filtration Rates, and Oxidative Stress in Different Experimental Hypertensive Models
by Chukwuemeka R. Nwokocha, Javier Palacios, Melissa Kaydeen Reid, Nikolai Javier Nunes, Wesley Gray, Donovan McGrowder, Nelson N. Orie and Momoh A. Yakubu
Nutrients 2025, 17(11), 1865; https://doi.org/10.3390/nu17111865 - 29 May 2025
Viewed by 801
Abstract
High-sodium/low-potassium in the modern diet, potassium excretion, and sodium retention have all been implicated in hypertension. Objectives: This study investigated the differential effects of potassium (K⁺) supplementation on blood pressure, renal function, and oxidative stress in two experimental hypertensive rat models: L-NAME-induced [...] Read more.
High-sodium/low-potassium in the modern diet, potassium excretion, and sodium retention have all been implicated in hypertension. Objectives: This study investigated the differential effects of potassium (K⁺) supplementation on blood pressure, renal function, and oxidative stress in two experimental hypertensive rat models: L-NAME-induced (nitric oxide synthase inhibitor-induced hypertension presenting with reduced NO bioavailability, endothelial dysfunction, vasoconstriction) and DOCA-salt-induced hypertension (deoxycorticosterone acetate + salt mimics volume-dependent hypertension of hypermineralocorticoidism, low renin, high sodium retention and severe cardiac fibrosis and oxidative stress). Methods: Male Sprague Dawley rats were treated with L-NAME or DOCA-salt, with or without 0.75% KCl dietary supplementation for eight weeks. Blood pressure, vascular reactivity, serum electrolytes, renal function markers, and malondialdehyde (MDA) levels were evaluated. Results: Potassium supplementation significantly reduced (20%) mean arterial pressure and (80%) oxidative stress markers in the L-NAME model but not in the DOCA-salt model. In both hypertensive models, K⁺ reduced (15%) vascular contractile response to phenylephrine, though it did not improve acetylcholine-induced vasodilation. Notably, K⁺ supplementation improved glomerular filtration rate (eGFR), sodium–potassium ratio, and renal biomarkers (urea and creatinine) in the L-NAME model, suggesting nephroprotection. However, in the DOCA-salt group, these markers either remained unchanged or worsened. Conclusions: These findings indicate that the antihypertensive and renoprotective effects of potassium are model-specific and depend on the underlying pathophysiological mechanisms, such as nitric oxide bioavailability and mineralocorticoid sensitivity. Dietary potassium may be more effective in patients with endothelial dysfunction-dominant hypertensive subtypes compared with volume-dependent hypertension and may call for K⁺ supplementation studies to be stratified by hypertension subtype. Full article
(This article belongs to the Special Issue Antioxidants in Metabolic Disorders and Inflammatory Diseases)
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15 pages, 797 KiB  
Article
Comparison of Maternal Serum Neuropilin-1 (NRP-1) and Fetal Cord Blood NRP-1 Concentrations in Between Normotensive Pregnant Women and Those with Preeclampsia
by Simge Tosun, Raziye Torun, Mehmet Ferdi Kinci, Saliha Aksun and Mustafa Sengul
J. Clin. Med. 2025, 14(11), 3718; https://doi.org/10.3390/jcm14113718 - 26 May 2025
Viewed by 526
Abstract
Background: The aim of this study was to compare the levels of Neuropilin-1 (NRP-1) in maternal plasma and fetal cord blood plasma between pregnancies complicated by preeclampsia (PE) and those in normotensive pregnant women. Materials and Methods: This prospectively designed study included 53 [...] Read more.
Background: The aim of this study was to compare the levels of Neuropilin-1 (NRP-1) in maternal plasma and fetal cord blood plasma between pregnancies complicated by preeclampsia (PE) and those in normotensive pregnant women. Materials and Methods: This prospectively designed study included 53 pregnant women aged 18 years or older and at least 20 weeks into gestation, who were admitted to the Maternity Department of Izmir Katip Çelebi University Atatürk Training and Research Hospital. The patient group consisted of 28 pregnant women who met the diagnostic criteria for PE, while the control group included 25 normotensive pregnant women. The diagnosis of PE was established based on the 2020 diagnostic criteria of the American College of Obstetricians and Gynecologists (ACOG). After detailed anamnesis, blood samples were collected immediately after delivery in EDTA tubes to assess serum NRP-1 levels. These samples included maternal blood, fetal cord blood, and additional tests such as CBC, liver and kidney function tests, serum electrolytes, spot urinalysis, prothrombin time (PT), and activated partial thromboplastin time (APTT). Results: There was a statistically significant difference between the two groups in terms of gestational week, presence of comorbidities, hypertension (HT), diabetes mellitus (DM), history of PE, and protein detected in spot urine examinations. Pregnant women in the PE group had significantly higher rates of comorbidities, HT, and DM compared to the control group (p < 0.001, 0.002, and 0.007, respectively). No statistically significant differences were observed between the two groups regarding hemoglobin, platelet count, aspartate aminotransferase (AST), alanine aminotransferase (ALT), or fetal cord plasma NRP-1 levels (p: 0.736, 0.831, 0.561, and 0.734, respectively). However, a statistically significant difference was found in maternal plasma NRP-1 levels (p: 0.02), which were lower in the control group compared to the PE group (median: 473.3 pg/mL vs. 587.7 pg/mL, respectively). The optimal cut-off value for maternal plasma NRP-1 to predict PE, with the best sensitivity and specificity, was determined to be 358.4 pg/mL. Among the study participants, 40 pregnant women had maternal plasma NRP-1 levels above the cut-off value, while 13 had levels below it. PE occurred significantly more frequently in the high NRP-1 group than in the low group. When demographic and clinical characteristics were analyzed, a statistically significant but weak positive correlation was found between body mass index (BMI) and maternal plasma NRP-1 levels (p: 0.02, Rho: 0.304). No strong or statistically significant relationships were identified with other variables. There was no significant difference in fetal cord plasma NRP-1 levels between the PE group and the normotensive group. In contrast, maternal plasma NRP-1 levels were significantly higher in the PE group. The cut-off value for maternal plasma NRP-1, providing optimal sensitivity and specificity for predicting PE, remained 358.4 pg/mL. Conclusions: While further studies involving larger cohorts of pregnant women from diverse racial backgrounds and various hospitals are needed to better understand the relationship between NRP-1 and PE, maternal NRP-1 concentration shows promise as a diagnostic marker. Full article
(This article belongs to the Section Obstetrics & Gynecology)
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31 pages, 1738 KiB  
Article
Vitamin D Imbalance and Hydro-Electrolyte Disturbances in Hospitalized Children: A Comparation Between Post-COVID-19 Status and SARS-CoV-2/EBV Coinfection
by Carmen Loredana Petrea (Cliveți), Diana-Andreea Ciortea, Gabriela Gurău, Nicoleta Mădălina Matei, Ciprian Adrian Dinu, Simona-Elena Bergheș (Oprea), Gabriela Isabela Verga (Răuță) and Sorin Ion Berbece
Biomedicines 2025, 13(5), 1233; https://doi.org/10.3390/biomedicines13051233 - 19 May 2025
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Abstract
Background/Objectives: SARS-CoV-2 infection has the potential to cause multi-organ involvement and, when associated with Epstein–Barr virus (EBV) coinfection, may worsen the course of disease in pediatric patients by influencing the immune response. Methods: Our retrospective–observational study included 406 hospitalized children with post-COVID-19 status [...] Read more.
Background/Objectives: SARS-CoV-2 infection has the potential to cause multi-organ involvement and, when associated with Epstein–Barr virus (EBV) coinfection, may worsen the course of disease in pediatric patients by influencing the immune response. Methods: Our retrospective–observational study included 406 hospitalized children with post-COVID-19 status or SARS-CoV-2/EBV coinfection. Results: Hypovitaminosis D was more common in the coinfected sublot (59.18%) than in the COVID-19 one (50.74%), with a higher frequency of severe vitamin D deficiency (16.33% vs. 7.35%). Hypovitaminosis D was significantly associated with female sex (p = 0.033) only in the COVID-19 subgroup. Hypervitaminosis D, although rare, was only associated with severe forms of the disease (7.69%). Between clinical severity and vitamin D level, a statistically significant association of moderate intensity was identified only in the COVID-19 subgroup (χ2 = 11.708, φ = 0.293, p = 0.020). In the same subgroup, a significant correlation was found between vitamin D levels and serum potassium values (χ2 = 10.527, p = 0.032). Moreover, in the COVID-19 subgroup, an association between abnormal sodium levels and increased D-dimer levels was found (χ2 = 7.074, p = 0.029). Conclusions: These results underline the importance of monitoring immunologic, vitamin, and electrolyte imbalance in the management of these cases and highlight the need for personalized therapeutic strategies to prevent long-term complications. Full article
(This article belongs to the Section Cell Biology and Pathology)
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17 pages, 3053 KiB  
Article
Therapeutic Effect of Lebanese Cannabis Oil Extract in the Management of Sodium Orthovanadate-Induced Nephrotoxicity in Rats
by Christabel Habchy, Alia Khalil, Wassim Shebaby, Diana Bylan, Marissa El Hage, Mona Saad, Selim Nasser, Wissam H. Faour and Mohamad Mroueh
Int. J. Mol. Sci. 2025, 26(9), 4142; https://doi.org/10.3390/ijms26094142 - 27 Apr 2025
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Abstract
Sodium orthovanadate is a non-selective protein tyrosine phosphatase inhibitor that can cause several types of kidney injury, including glomerulosclerosis, inflammation, and tubular damage. Cannabis is widely known for its medicinal use, and several studies have demonstrated its anti-diabetic and anti-inflammatory properties. The current [...] Read more.
Sodium orthovanadate is a non-selective protein tyrosine phosphatase inhibitor that can cause several types of kidney injury, including glomerulosclerosis, inflammation, and tubular damage. Cannabis is widely known for its medicinal use, and several studies have demonstrated its anti-diabetic and anti-inflammatory properties. The current study investigated the therapeutic effect of Lebanese cannabis oil extract (COE) against sodium orthovanadate-induced nephrotoxicity both in vitro and in vivo. Sprague Dawley male rats were intraperitoneally injected with 10 mg/kg sodium orthovanadate for 10 days followed by 5 mg/kg; 10 mg/kg; or 20 mg/kg intraperitoneal injection of cannabis oil extract, starting on day 4 until day 10. The body weight of the rats was monitored during the study, and clinical parameters, including serum urea, creatinine, and electrolytes, as well as kidney and heart pathology, were measured. Conditionally immortalized cultured rat podocytes were exposed to either sodium orthovanadate or selective phosphatase inhibitors, including DUSPi (DUSP1/6 inhibitor) and SF1670 (PTEN inhibitor), in the presence or absence of cannabis oil extract. MTS and an in vitro scratch assay were used to assess podocyte cell viability and migration, respectively. Western blot analysis was used to evaluate the phosphorylation levels of AKT and p38 MAPK. Rats injected with sodium orthovanadate displayed a marked reduction in body weight and an increase in serum creatinine and urea in comparison to the control non-treated group. All doses of COE caused a significant decrease in serum urea, with a significant decrease in serum creatinine observed at a dose of 20 mg/kg. Moreover, the COE treatment of rats injected with orthovanadate (20 mg/kg) showed a marked reduction in renal vascular dilatation, scattered foci of acute tubular necrosis, and numerous mitoses in tubular cells compared to the sodium orthovanadate-treated group. The cell viability assay revealed that COE reversed cytotoxicity induced by sodium orthovanadate and specific phosphatase inhibitors (DUSPi and SF1670) in rat podocytes. The in vitro scratch assay showed that COE partially restored the migratory capacity of podocytes incubated with DUSPi and SF1670. Time-course and dose-dependent experiments showed that COE (1 μg/mL) induced a significant increase in phospho-(S473)-AKT, along with a decrease in phospho (T180 + Y182) P38 levels. The current results demonstrated that Lebanese cannabis oil possesses important kidney protective effects against sodium orthovanadate-induced renal injury. Full article
(This article belongs to the Special Issue Molecular Advances on Cannabinoid and Endocannabinoid Research 2.0)
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