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Bottlebrush polymers (BB) have emerged as compelling candidates for biosystems to face tribological challenges, including friction and wear. This study provides a comprehensive assessment of an engineered triblock BB polymer's affinity, cell toxicity, lubrication, and wear protection in both in vitro and in vivo settings, focusing on applications for conditions like osteoarthritis and dry eye syndrome. Results show that the designed polymer rapidly adheres to various surfaces (e.g., cartilage, eye, and contact lens), forming a robust, biocompatible layer for surface lubrication and protection. The tribological performance and biocompatibility are further enhanced in the presence of hyaluronic acid (HA) both in vitro and in vivo. The exceptional lubrication performance and favorable interaction with HA position the synthesized triblock polymer as a promising candidate for innovative treatments addressing deficiencies in bio-lubricant systems.
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http://dx.doi.org/10.1002/adma.202401689 | DOI Listing |
Nutr Rev
September 2025
Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India.
Pomegranate (Punica granatum L) is a rich source of bioactive compounds, including punicalagin, ellagic acid, anthocyanins, and urolithins, which contribute to its broad pharmacological potential. This review summarizes evidence from in vitro and in vivo experiments, as well as clinical studies, highlighting pomegranate's therapeutic effects in inflammation, metabolic disorders, cancer, cardiovascular disease, neurodegeneration, microbial infections, and skin conditions. Mechanistic insights show modulation of pathways such as nuclear factor-kappa B (NF-κB), mitogen-activated protein kinase (MAPK), alpha serine/threonine-protein kinase (AKT1), and nuclear factor erythroid 2-related factor 2 (Nrf2).
View Article and Find Full Text PDFACS Biomater Sci Eng
September 2025
University Center for Research & Development (UCRD), Chandigarh University, NH-05 Chandigarh-Ludhiana Highway, Mohali 140413, Punjab, India.
Cardiovascular disorders remain a leading cause of death worldwide, and the use of contemporary stents is paving the way for a profound shift in the field of cardiology. In the surgical process postimplantation, the graft or stent and host-immune interaction play a significant role in the healing process, thus it is a major challenge in healthcare. To address these challenges, recent advancements have introduced bioactive coatings with specialized modifications in stents to enhance their interaction with surrounding environment.
View Article and Find Full Text PDFChem Biodivers
September 2025
School of Pharmaceutical Science, Yunnan Key Laboratory of Pharmacology for Natural Products/College of Modern Biomedical Industry, NHC Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, P. R. China.
20(R)-ginsenoside Rg3 can reduce the effects of oxidative stress and cell death in cerebral ischemia‒reperfusion injury (CIRI). Neuroinflammation is crucial post-CIRI, but how 20(R)-Rg3 affects ischemia‒reperfusion-induced neuroinflammation is unclear. To study 20(R)-Rg3's effects on neuroinflammation and neuronal preservation in stroke models and explore toll-like receptor 4/myeloid differentiation factor-88/nuclear factor kappa B (TLR4/MyD88/NF-κB) pathway mechanisms.
View Article and Find Full Text PDFJ Agric Food Chem
September 2025
College of Materials and Chemistry & School of Plant Protection, Anhui Agricultural University, Hefei, 230036, P. R. China.
In recent years, the hydrazide skeleton, as a pivotal class of nitrogen-containing structures, has garnered considerable attention in medicinal chemistry and organic synthesis owing to its unique chemical versatility and broad-spectrum biological activities. In this study, a series of thiazole-containing benzoylhydrazine derivatives -, -, and - with structural divergence from conventional hydrazide-based molecular frameworks were designed, synthesized, and evaluated for their antifungal/antioomycete activities. The antifungal/antioomycete assay showed that some of the targeted compounds exhibited remarkable and broad-spectrum antifungal activities.
View Article and Find Full Text PDFChem Biodivers
September 2025
Key Lab of Natural Product Chemistry and Application at Universities of Education, Department of Xinjiang Uygur Autonomous Region, School of Chemistry and Chemical Engineering, Yili Normal University, Xinjiang, China.
The persistent threat posed by phytopathogenic fungi to agricultural systems underscores the critical need for novel fungicides. Here, we synthesized and characterized a series of novel acridospiroisoxazole derivatives (H1-H36) using H/C NMR and mass spectrometry. The absolute configuration of compound H23 was confirmed using single-crystal x-ray diffraction analysis.
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