Polymeric scaffolds incorporating plant-derived compounds, produced by electrospinning, have attracted attention in the field of skin tissue engineering. This study evaluates the sustained antioxidant activity of polycaprolactone (PCL)/gelatin nanofibers prepared by electrospinning and incorporating loaded liposomes of epigallocatechin-3-gallate (EGCG), a strong antibacterial and antioxidant molecule found in green tea, that significantly accelerates the wound-healing process. The morphology and the structural properties of the membranes were characterized by scanning electron microscopy (SEM) and FTIR spectroscopy. Results revealed that the EGCG released from PCL+gelatin nanofibers scavenges the toxic ROS species generated by exposure to either HO or UV radiation and slows down the oxidation events associated with damage. This study provides the basis for development of promising nanofiber formulations containing EGCG that might enhance repair/regeneration of skin tissue.
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http://dx.doi.org/10.1021/acsabm.9b00524 | DOI Listing |
PLoS One
January 2025
School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom.
Skin and hair development is regulated by multitude of programs of activation and silencing of gene expression to maintain normal skin and hair follicle (HF) development, homeostasis, and cycling. Here, we have identified E74-like factor 5 (Elf5) transcription factor, as a novel regulator of keratinocyte proliferation and differentiation processes in skin. Expression analysis has revealed that Elf5 expression was localised and elevated in stem/progenitor cell populations of both the epidermis (basal and suprabasal) and in HF bulge and hair germ stem cell (SCs) compartments during skin and hair development and cycling.
View Article and Find Full Text PDFAnn Surg Oncol
January 2025
Department of Radiotherapy and Physics, The Royal Marsden Hospital and The Institute of Cancer Research, London, UK.
For patients with nonmetastatic soft tissue sarcoma (STS) who are at high risk of local recurrence, the standard of care for limb-conserving local management is combined radiotherapy and surgery. Radiotherapy for STS entails 5 weeks of conventionally fractionated radiotherapy (25 × 2 Gy) preoperatively or 6 or more weeks postoperatively. There is growing interest in the use of preoperative hypofractionated regimes, viz.
View Article and Find Full Text PDFJ Med Syst
January 2025
Department of Neurosurgery, University Medical Centre Utrecht, Utrecht, The Netherlands.
This study aimed to develop and validate a cost-effective, customizable patient-specific phantom for simulating external ventricular drain placement, combining image segmentation, 3-D printing and molding techniques. Two variations of the phantom were created based on patient MRI data, integrating a realistic skin layer with anatomical landmarks, a 3-D printed skull, an agarose polysaccharide gel brain, and a ventricular cavity. To validate the phantom, 15 neurosurgeons, residents, and physician assistants performed 30 EVD placements.
View Article and Find Full Text PDFMar Biotechnol (NY)
January 2025
Burn Research Center, Iran University of Medical Sciences, Tehran, Iran.
Burn wounds are challenging to treat due to considerable tissue damage and fluid loss. Creating wound dressings from natural and biological materials makes it possible to treat wounds and promote rapid epithelialization to speed healing and restore skin function. As a result, the ability of a collagen scaffold (Col) made from rainbow trout (Oncorhynchus mykiss) and putative bioactive phytochemical components from a Sargassum glaucescens (S.
View Article and Find Full Text PDFAm J Dermatopathol
December 2024
Department of Dermatology, Columbia University, New York, NY.
Acute myeloid leukemia is a cancer involving uncontrolled proliferation of hematopoietic cells. Cutaneous involvement is referred to as leukemia cutis (LC). The histopathologic presentation of LC is variable, and may present with perivascular, periadnexal, dermal, or subcutaneous infiltrate.
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