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Cystinosis is a lysosomal storage disorder usually presenting with renal disease in infancy. As soon as the diagnosis is made, cysteamine (a cystine-depleting medication), is started, significantly improving life expectancy. We describe a young woman taking lifelong cysteamine for nephropathic cystinosis, who became acutely encephalopathic with a spastic tetraparesis secondary to cysteamine toxicity, which was potentially worsened by copper deficiency. On replacing copper and reducing the dose of cysteamine, she made a full neurological recovery. We discuss the case, and review cystinosis and what is known about cysteamine toxicity.
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http://dx.doi.org/10.1136/pn-2024-004172 | DOI Listing |
Toxicol Mech Methods
September 2025
Department of Pharmacology and Therapeutics, Delta State University, Abraka, Delta State, Nigeria.
Background: Given the increasing therapeutic potential of cysteamine (CYST) at appropriate doses and expert concerns regarding the toxicity of nanoparticles, this study aimed to assess the toxicity profile of both CYST and silver nanoparticles conjugated with cysteamine (CYST-AgNPs).
Methods: For the acute study, a 300 mg/kg starting dose of CYST (i.p administration) produced a toxic response in some mice ( = 3/group), and a 300 mg/kg beginning dose of CYST-AgNPs produced delayed mild toxicity.
Farm Hosp
August 2025
Grupo de Antídotos, Societat Catalana de Farmàcia Clínica, Barcelona, España; Servicio de Farmacia, Hospital Universitario Doctor Josep Trueta, Girona, España.
Acetaminophen is one of the most widely used drugs in clinical practice due to its analgesic and antipyretic properties. However, overdose is one of the leading causes of severe acute liver failure. N-acetylcysteine, introduced as an antidote in 1974, has revolutionized the management of this intoxication by reducing hepatotoxicity and mortality associated with acetaminophen toxicity.
View Article and Find Full Text PDFMikrochim Acta
August 2025
Department of Chemistry and Biochemistry, Sharda School of Basic Sciences and Research, Sharda University, Greater Noida, 201310, Uttar Pradesh, India.
In vivo imaging with biocompatible fluorescent agents such as carbon dots (C-Dots) is becoming increasingly popular in theranostics. This study investigates the efficacy and safety of fluorescent C-Dots derived from Withania coagulans (WC) flowers, as well as their modified version, through in vitro and in vivo experiments. A hydrothermal method was used to synthesize three types of C-Dots, i.
View Article and Find Full Text PDFInflammopharmacology
August 2025
Faculty of Pharmacy, Department of Pharmacology, The Islamia University of Bahawalpur, Bahawalpur, Pakistan.
Objective: The current study aims to authenticate the traditional usage of Fagonia bruguieri var. laxa in eczema, ulcers, and gastrointestinal diseases.
Methods: Fagonia bruguieri var.
Burns
August 2025
General Surgery Department, Xi'an Children's Hospital, Xi'an City, Shaanxi Province, PR China. Electronic address:
Background: Conventional gauze lacks antimicrobial properties and mobility, making it ineffective in treating skin wounds. Hydrogels, due to their excellent biocompatibility and softness, are considered ideal wound dressings.
Methods: Hydrogel dressings based on cationic guar gum (CGG) were constructed using (4-hydroxyphenylboronic acid) cysteamine as a crosslinker.