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Patches containing quercetin microcapsules to ameliorate dermal herpes simplex virus injuries in mice.
Eur J Pharm Biopharm
January 2025
Department of Chemistry, State University of Londrina, Londrina, PR, Brazil; Department of Pharmaceutical Sciences, State University of Londrina, Londrina, PR, Brazil. Electronic address:
This study aimed to develop patches containing quercetin-loaded microcapsules and to evaluate their in vitro and in vivo safety and efficacy in preclinical surveys. A set of in vitro experiments evidenced the virucidal activity of quercetin against the HSV-1-KOS (sensitive to acyclovir) and HSV-1-AR (resistant to acyclovir) strains, with improved outcomes upon the first. The patches presented a homogeneous aspect, were easily handled, had a suitable bioadhesion, and possessed mechanical properties of soft and weak material, besides a pH compatible with human skin.
View Article and Find Full Text PDFBupivacaine multivesicular liposomes/meloxicam nanocrystals in a thermosensitive gel adapted to the "microenvironment" for long-term analgesia.
Eur J Pharm Biopharm
January 2025
National Advanced Medical Engineering Research Center, China State Institute of Pharmaceutical Industry, Shanghai 201203 PR China. Electronic address:
Current analgesics on the market exhibit a short duration of action and induce the production of inflammatory factors in tissues damaged by surgical procedures. Inflammatory factor production can create acidic environments, limiting drug delivery. In this study, we developed a novel injectable formulation comprising bupivacaine multivesicular liposomes of high osmotic pressure (H-MVL) and meloxicam nanocrystals (MLX) in a thermosensitive gel (H-MVL/MLX@GEL) adapted to the microenvironment for long-term postoperative analgesia.
View Article and Find Full Text PDFAssessment of conductive textile-based electrocardiogram measurement for the development of a lonely death prevention system.
Biomed Eng Lett
January 2025
Department of Biomedical Engineering, Yonsei University College of Software and Digital Healthcare Convergence, Wonju-si, Gangwon-do 26493 Republic of Korea.
The rise in individuals living alone in ageing societies raises concerns about social isolation and associated health risks, notably lonely deaths among the elderly. Traditional electrocardiogram (ECG) monitoring systems, reliant on intrusive and potentially irritating electrodes, pose practical challenges. This study examines the efficacy of conductive textile electrodes (CTEs) vis-á-vis conventional electrodes (CEs) in ECG monitoring, along with the effect of electrode positioning.
View Article and Find Full Text PDFInvestigation of additional suitable positive controls in the human Cell Line Activation Test.
J Toxicol Sci
January 2025
Safety Science Research Laboratories, Kao Corporation.
The human Cell Line Activation Test (h-CLAT) is an in vitro skin sensitization assay adopted by the OECD as Test Guideline 442E. In the h-CLAT, 2,4-dinitrochlorobenzene (DNCB) is used as a positive control; however, DNCB is considered a poisonous substance under the Poisonous and Deleterious Substances Control Act in Japan since 2014 because of its high acute toxicity. Strict control, handling, and storage are required when using DNCB, which is a burden to the users.
View Article and Find Full Text PDFArginine Hydrochloride Reduce Rectal Mucosal Irritation of Sodium Aescinate: Molecular Docking, Physical Properties, Anti-Hemorrhoidal Activity, Safety and Topical Gel Formulations Investigation.
Pharmaceutics
November 2024
School of Life Science and Technology, Wuhan Polytechnic University, Wuhan 430023, China.
: Sodium aescinate (SA) is commonly used topically due to its anti-inflammatory, anti-edematous, and anti-swelling properties. However, the clinical application of SA is limited by strong irritation, and cannot be used on the damaged skin and mucous membrane. This study aimed to investigate whether arginine hydrochloride (Arg·HCl) could reduce the rectal mucosal irritation of SA through the formation of a gel.
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