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Introduction: Ellagic acid (EA), commonly found in foods, offers significant health benefits in combating chronic diseases. However, its therapeutic potential is hindered by its extremely poor solubility and bioavailability.
Method: In this study, EA nanoparticles (EA NPs) were produced using a sono-assembly method, without additional agents.
Results: EA NPs exhibited stick-like nanoparticle structures with an average size of 147.3 ± 0.73 nm. EA NPs likely adopt a tunnel-type solvate structure, with 4 water participating in disruption of intramolecular hydrogen bonds in EA and establishment of intermolecular hydrogen bonds between EAs. Importantly, EA NPs exhibited remarkable enhancements in water solubility, with 120.7-fold increase in water, and 97.8-fold increase in pH 6.8 buffer. Moreover, ex vivo intestinal permeability studies demonstrated significant improvements (P < 0.5). These findings were further supported by in vivo pharmacokinetic studies, where EA NPs significantly enhanced the relative bioavailability of EA by 4.69 times.
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http://dx.doi.org/10.1016/j.foodchem.2024.138485 | DOI Listing |
Chem Biodivers
September 2025
Department of Pharmacognosy, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Türkiye.
The biological activities and phytochemical composition of Alchemilla daghestanica and Alchemilla minusculiflora were investigated for the first time. Methanol extracts from the aerial and root parts of both species were assessed. The total phenolic content was highest in the root extracts.
View Article and Find Full Text PDFAdv Sci (Weinh)
September 2025
Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China.
Normal tension glaucoma (NTG) is a predominant subset of glaucoma in Asia and is characterized by glaucomatous optic neuropathy in the absence of elevated intraocular pressure. Alterations in retinal blood vessels are reported to be important mechanisms of glaucomatous optic nerve damage. Retinal peripapillary vascular density is assessed in patients with early stage NTG and OPTN (E50K) mutant mice and confirmed a similar reduction in retinal peripapillary vascular density in patients with NTG and model mice.
View Article and Find Full Text PDFBiomed Pharmacother
September 2025
NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia. Electronic address:
Indigenous Australians have long recognised and utilised the therapeutic potential of Australian native plants for generations to treat and manage various diseases. In recent years, these native plants have been explored in preclinical research for their chemical profiles and therapeutic properties for conditions such as skin disorders, colds and flu, various cancers, neurological disorders, metabolic syndrome, and other inflammatory conditions. Notable species studied include Kakadu plum, Davidson's plum, Burdekin plum, Illawarra plum, anise myrtle, lemon myrtle, lemon aspen, quandong, muntries, and Tasmanian pepperberry.
View Article and Find Full Text PDFMol Nutr Food Res
September 2025
Institute of Nutrition and Health, Qingdao University, Qingdao, People's Republic of China.
Ellagic acid (EA), a bioactive polyphenol abundant in pomegranate and berries, exhibits potential in metabolic regulation. This study investigates EA's anti-obesity mechanisms, focusing on its effects on gut microbiota and transcriptional regulation in adipose tissue. After a 9-week high-fat diet feeding, mice were divided into groups and treated with low-dose EA (10 mg/kg/day), high-dose EA (30 mg/kg/day), or urolithin A (20 mg/kg/day) for 7 weeks, with healthy and obese controls included.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
Department of Otorhinolaryngology Head and Neck Surgery, Guangzhou Twelfth People's Hospital (The Affiliated Twelfth People's Hospital of Guangzhou Medical University), Guangzhou Medical University, Guangzhou 510620, China. Electronic address:
Diabetic wound healing remains a critical clinical challenge due to persistent inflammation derived from long-term hyperglycemia. To address this challenge, we reported a zinc ion coordinated CMCS hydrogel for pH responsive delivery of ellagic acid to fulfill diabetic wound management. The incorporation of zinc ions and EA reinforce the hydrogel network via coordination and hydrogen bonding, and confer a pH-responsive release of EA under simulative wound microenvironment.
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