Hyponatremia is the most common electrolyte disturbance among hospitalized adults. Oral urea is currently recommended in Europe in the treatment of chronic hyponatremia; no published systematic review investigating oral urea for acute hyponatremia among hospitalized adults exists. An oral urea supplement became available in the United States in 2016. This was a systematic review investigating the use of oral urea in the treatment of acute hyponatremia among hospitalized adults. Pubmed, CINAHL, Scopus, Web of Science, and Cochrane databases were searched for studies published between 1998 and 2021. Risk of bias was assessed using the ROBINS-I tool; strength of the evidence was assessed using GRADE criteria. Changes in serum sodium and measures of safety and tolerance were reported. Eight studies were identified that met inclusion criteria, which included a total of 296 patients. Seven studies were retrospective. All studies found an increase in serum sodium levels associated with oral urea supplementation. Side effects were minimal; one patient discontinued urea due to a side effect (dysgeusia). Urea dose/duration varied among the studies. Based on the serious risk of bias and GRADE criteria, the strength of the evidence was considered low. Oral urea supplementation was associated with increases in serum sodium concentrations among hospitalized adults with hyponatremia, and appears to be safe and well tolerated in this population. Prospective controlled trials are needed to establish the efficacy, comparative effectiveness, and potential cost savings of this therapy.Key teaching pointsHyponatremia is associated with negative clinical outcomes among hospitalized adults.Oral urea is now available in the United States, and is currently recommended in Europe to treat chronic hyponatremia.This systematic review shows that oral urea supplementation may be associated with increases in serum sodium levels among hospitalized adults with hyponatremia, and appears safe and well-tolerated; however, the studies reviewed here are at high risk of bias and the available evidence is of low quality, making any recommendation drawn from this data weak.Prospective controlled trials are needed to establish the efficacy, comparative effectiveness, and potential cost savings of oral urea supplementation for hyponatremia.
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http://dx.doi.org/10.1080/07315724.2022.2036267 | DOI Listing |
J Med Chem
January 2025
State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.
The cyclic GMP-AMP synthase (cGAS)-stimulator of the interferon genes (STING) pathway plays a key role in triggering interferon and inflammatory responses against microbial invasion or tumor. However, aberrant activation of the cGAS-STING pathway is associated with a variety of inflammatory and autoimmune diseases, and thus inhibition of STING is regarded as a potential new approach to treating these diseases. Herein, we report a series of novel indolyl-urea derivatives as STING inhibitors.
View Article and Find Full Text PDFAnal Chem
January 2025
State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
Urea is an important biomarker for diagnosing various kidney and liver disorders. However, many existing methods rely on invasive blood sampling, which can potentially harm patients. Saliva has been recently recognized as a noninvasive and easily collectible alternative to blood for urea quantification.
View Article and Find Full Text PDFBiomol Concepts
January 2025
Division of Pharmacology, School of Medical and Life Sciences, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, 47500 Selangor Darul Ehsan, Malaysia.
Seaweeds have been utilized as food, fodder, fertilizer, and medicine since ancient times; nevertheless, they have received only a little attention. In the current work, we extracted the sulfated polysaccharide from a marine source and investigated its anti-arthritic potential . The isolated and freeze-dried polysaccharide was tested for acute oral toxicity based on OECD 423.
View Article and Find Full Text PDFClin Oral Investig
January 2025
Department of Dentistry, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil.
Objectives: This study aimed to determine whether incorporating nanostructured additives into bleaching agents enhances efficacy and reduces side effects while identifying gaps for further investigation.
Methods: A comprehensive search was conducted in electronic databases, including PubMed/Medline, Embase, Scopus, and ISI Web of Science. Two reviewers independently screened articles based on predefined criteria, resolving discrepancies through discussion or consultation with a third reviewer.
Clin Exp Nephrol
January 2025
Internal Medicine Department, El Qabbary General Hospital, Ministry of Health, Alexandria, Egypt.
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