The multi-drug resistance of methicillin-resistant Staphylococcus aureus (MRSA) and complex wound microenvironment challenge the repair of MRSA infected wound. Herein, in this study, α-tocopherol modified glycol chitosan (TG) nanoparticles encapsulated with phytochemical rhein (Rhein@TG NPs) were prepared for comprehensive anti-infection and promotion of MRSA infected wound healing. Rhein@TG NPs could not only specifically release rhein in the infection site in response to low pH and lipase of infectious microenvironment, but also up-regulated M1 macrophage polarization in the infection stage, thus achieving synergistically bacterial elimination with low possibility of developing resistance. Additionally, the NPs reduced the levels of pro-inflammatory factors in the post-infection stage, scavenged the ROS, promoted cell migration and angiogenesis, which significantly improved the microenvironment of infected wound healing. Therefore, this antibiotic-free NPs enabling anti-infection and promotion of wound healing provides a new and long-term strategy for the treatment of MRSA infected wound.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2024.135360 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Efficacy of wound care ointment in healing infectious wounds after anorectal surgery: A randomized controlled trial.
Medicine (Baltimore)
January 2025
Anorectal Department, People's Hospital of Leshan, Leshan, Sichuan, China.
Background: This study evaluates the efficacy of a novel bismuth subgallate-borneol compound ointment as an adjuvant therapy in promoting postoperative healing of infectious incisions after anorectal surgery.
Methods: From June 2023 to October 2023, 46 patients with perianal abscess and anal fistula treated at our institution's Anorectal Surgery Department were enrolled in this prospective randomized controlled study. Patients were randomly allocated into 2 groups: the experimental group (n = 23) received conventional wound care plus a proprietary ointment containing 4.
The efficacy of acupuncture in relieving postoperative pain in patients with low simple anal fistula: Protocol of a prospective, randomised, controlled trial.
PLoS One
January 2025
Department of Anorectal Surgery, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
Background: Anal fistula surgery often leads to postoperative pain, which can hinder recovery and negatively impact patients' quality of life. This prospective, randomised, controlled trial (RCT) aims to investigate the efficacy of acupuncture in alleviating postoperative pain and reducing the usage of analgesic medications following anal fistula surgery.
Methods: This single-centre, patient-blinded, assessor-blinded, placebo-controlled randomised controlled trial (RCT) will be conducted at a tertiary referral hospital.
Surgical Site Infection after Craniotomy in Neuro-Oncology (SINO): A protocol for an international prospective multicentre service evaluation across the United Kingdom and Ireland.
PLoS One
January 2025
Division of Neurosurgery, Department of Clinical Neuroscience, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom.
Introduction: Given its proximity to the central nervous system, surgical site infections (SSIs) after craniotomy (SSI-CRAN) represent a serious adverse event. SSI-CRAN are associated with substantial patient morbidity and mortality. Despite the recognition of SSI in other surgical fields, there is a paucity of evidence in the neurosurgical literature devoted to skin closure, specifically in patients with brain tumors.
View Article and Find Full Text PDFEnhancing Diabetic Oral Wound Healing with miR-132 Delivered Through Tetrahedral DNA Nanostructures.
Small
January 2025
Department of Operative Dentistry and Endodontics, Shanghai Stomatological Hospital and School of Stomatology, Fudan University, Shanghai, 200001, China.
Oral mucosal injuries are commonly caused by factors such as trauma, infection, or inflammation, especially in diabetic patients where healing is difficult and significantly affects quality of life. In this study, a nanocarrier system based on DNA tetrahedrons (TDN) is developed, which serve as ideal vectors due to their excellent intracellular uptake and drug delivery capabilities. By efficiently delivering miR132 into cells, the proliferation and migration of human oral mucosal fibroblasts (HOMFs) and human umbilical vein endothelial cells (HUVECs) are regulated, along with the modulation of inflammation and antioxidant processes.
View Article and Find Full Text PDFTurning Waste into Treasure: Functionalized Biomass-Derived Carbon Dots for Superselective Visualization and Eradication of Gram-Positive Bacteria.
Adv Sci (Weinh)
January 2025
State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, 2 Southeast University Road, Nanjing, 211189, P. R. China.
Gram-positive bacteria pose significant threats to human health, necessitating the development of targeted bacterial detection and eradication strategies. Nevertheless, current approaches often suffer from poor targeting specificity. Herein, the study utilizes purple rice lixivium to synthesize biomass carbon dots (termed BCDs) with wheat germ agglutinin-like residues for precisely targeting Gram-positive bacteria.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!