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Endosomal sequestration of lipid-based nanoparticles (LNPs) remains a formidable barrier to delivery. Herein, structure-activity analysis of cholesterol analogues reveals that incorporation of C-24 alkyl phytosterols into LNPs (eLNPs) enhances gene transfection and the length of alkyl tail, flexibility of sterol ring and polarity due to -OH group is required to maintain high transfection. Cryo-TEM displays a polyhedral shape for eLNPs compared to spherical LNPs, while x-ray scattering shows little disparity in internal structure. eLNPs exhibit higher cellular uptake and retention, potentially leading to a steady release from the endosomes over time. 3D single-particle tracking shows enhanced intracellular diffusivity of eLNPs relative to LNPs, suggesting eLNP traffic to productive pathways for escape. Our findings show the importance of cholesterol in subcellular transport of LNPs carrying mRNA and emphasize the need for greater insights into surface composition and structural properties of nanoparticles, and their subcellular interactions which enable designs to improve endosomal escape.
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http://dx.doi.org/10.1038/s41467-020-14527-2 | DOI Listing |
Food Funct
September 2025
Laboratory for Animal Nutrition and Animal Product Quality (LANUPRO), Department of Animal Sciences and Aquatic Ecology, Ghent University, Coupure Links 653, B-9000, Ghent, Belgium.
It is unknown how human health is affected by the current increased consumption of ultra-processed plant-based meat analogues (PBMA). In the present study, rats were fed an experimental diet based on pork or a commercial PBMA, matched for protein, fat, and carbohydrate content for three weeks. Rats on the PBMA diet exhibited metabolic changes indicative of lower protein digestibility and/or dietary amino acid imbalance, alongside increased mesenteric (+38%) and retroperitoneal (+20%) fat depositions despite lower food and energy intake.
View Article and Find Full Text PDFMedicine (Baltimore)
August 2025
Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China.
Nucleos(t)ide analogues (NAs) have demonstrated potent efficacy in suppressing viral replication in chronic hepatitis B (CHB). This 48-week study compared the efficacy and safety of NA treatment for CHB patients with high viral load (hepatitis B virus [HBV] deoxyribonucleic acid [DNA] > 7 log10 IU/mL). This retrospective study included 180 nucleos(t)ide-naïve CHB patients with high viral load undergoing NA monotherapy, which were stratified into 3 groups: entecavir (ETV, n = 82), tenofovir disoproxil fumarate (TDF, n = 58), and tenofovir alafenamide fumarate (TAF, n = 40).
View Article and Find Full Text PDFFront Endocrinol (Lausanne)
September 2025
Department of Endocrinology and Metabolism, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, China.
Background: This study investigated the association between vitamin D status and thyroid function in 1,805 adults with type 2 diabetes mellitus (T2DM) treated at a tertiary hospital between 2018 and 2024. We analyzed demographic, metabolic, and thyroid function parameters to determine whether vitamin D levels influence thyroid dysfunction in this population.
Methods: Plasma 25-hydroxyvitamin D, thyroid hormones (FT3, FT4, TSH), and autoantibodies (TPOAb, TGAb, TRAb) were measured using electrochemiluminescence.
Nutrients
August 2025
Immunoceutica Inc., Cambridge, ON N1T 1N6, Canada.
Vitamin D (VD) plays a critical role in human health, with deficiencies linked to a range of adverse outcomes, including compromised immune function and increased disease risk. While environmental factors such as sunlight exposure and diet influence circulating VD levels, genetic variation is a significant and underappreciated contributor to interindividual differences in serum 25-hydroxyvitamin D [25(OH)D] concentrations. This review provides a comprehensive summary of genetic variants in key genes involved in VD synthesis (e.
View Article and Find Full Text PDFNutrients
August 2025
Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Campus Monterrey, Av. Eugenio Garza Sada 2501 Sur, Monterrey 64849, NL, Mexico.
Cardiovascular disease (CVD) remains the leading cause of death worldwide, with elevated low-density lipoprotein cholesterol (LDL-C) as a major risk factor. Beyond medications, dietary interventions and functional foods offer significant cholesterol-lowering potential. This article provides a comprehensive review of functional foods and nutraceutical ingredients that help to reduce cholesterol levels and introduces the novel Cholesterol-Lowering Capacity Index (CLCI), designed to quantify and communicate the efficacy of such foods.
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