719 results match your criteria: "Department of Photo Healing & Regeneration Medical Laser Research Center Yara Institute[Affiliation]"

People with diabetes-related foot ulcers (DFUs) need to perform self-care consistently over many months to promote healing and to mitigate risks of hospitalisation and amputation. However, during that time, improvement in their DFU can be hard to detect. Hence, there is a need for an accessible method to self-monitor DFUs at home.

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Solar radiation comprising UVA and UVB regions is considered a skin-damaging factor inducing inflammation, oxidative stress, hyperpigmentation, and photo-aging. Photoluminescent carbon dots (CDs) were synthesized from the root extract of a (L.) Dunal plant and urea, using a one-step microwave method.

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Photo-Responsive Hydrogel for Contactless Dressing Change to Attenuate Secondary Damage and Promote Diabetic Wound Healing.

Adv Healthc Mater

July 2023

Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China.

Dressing change is a significant and inevitable process during wound healing. Possible secondary damage caused through dressing removal may impose a great threat on wound recovery, thus resulting in healing delays and ultimately a higher cost of hospitalization. Hence, a non-contact refreshable dressing with an ease of operation is of great desire, especially for chronic wounds where a long-term and repeated dressing change would be performed.

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Purpose: Acne scars are common in patients with moderate to severe acne. Isotretinoin is the first-line treatment for those patients, but whether oral isotretinoin can improve acne scar is not clear. Picosecond lasers (FxPico) has been reported to improve acne scars.

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Sustainable Bio-Based UV-Cured Epoxy Vitrimer from Castor Oil.

Polymers (Basel)

February 2023

Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.

Vitrimers brought new properties in thermosets by allowing their reshaping, self-healing, reprocessing, and network rearrangement without changing structural integrity. In this study, epoxidized castor oil (ECO) was successfully used for the straightforward synthesis of a bio-based solvent-free vitrimer. The synthesis was based on a UV-curing process, which proceeded at low temperatures in the absence of any solvents, and within a short time.

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A series of UV-curable urethane (meth)acrylates were obtained by copolymerization of the Diels-Alder adduct (HODA), isophorone diisocyanate, PEG1000, and various hydroxy (meth)acrylates. The aim of the present work was to determine the influence of the chemical structure of the introduced (meth)acrylic groups, i.e.

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Wound healing is a complex process requiring an adequate supply of the wound area with oxygen and nutrients by neo-vascularization, to renew tissue. Local ischemia can result in the formation of chronic wounds. Since there is a lack of wound healing models for ischemic wounds, we aimed to develop a new one, based on chick chorioallantoic membrane (CAM) integrated split skin grafts and induction of ischemia with photo-activating Rose Bengal (RB) in a two-part study: (1) investigation of the thrombotic effect of photo-activated RB in CAM vessels and (2) investigation of the influence of photo-activated RB on CAM integrated human split skin xenografts.

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Nanomaterials-Based Wound Dressing for Advanced Management of Infected Wound.

Antibiotics (Basel)

February 2023

Department of Cell Biology and Regenerative Medicine, School of Medicine, Ningbo University, Ningbo 315211, China.

Article Synopsis
  • - Effective management of bacterial infections is crucial for wound healing, and the use of nanomaterials in wound dressings has shown promise due to their unique properties that enhance treatment outcomes compared to traditional materials.
  • - The review focuses on the antibacterial capabilities of nanoparticles, especially metals and metal oxides, which can kill bacteria and tackle drug resistance while also serving as smart drug carriers for targeted antimicrobial delivery.
  • - In addition to their therapeutic benefits, advanced nanomaterial-based dressings can detect infections and provide real-time treatment; however, the review also addresses ongoing challenges and future directions for improving these innovative wound care technologies.
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Dermis fibroblasts are very sensitive to penetrating UVA radiation and induce photo-damage. To protect skin cells against this environmental damage, there is an urgent need for effective compounds, specifically targeting UVA-induced mitochondrial injury. This study aimed to analyze the effect of carnosine on the proteome of UVA-irradiated human skin fibroblast, cultured in a three-dimensional (3D) biological system recapitulating dermal compartment as a test system to investigate the altered cellular pathways after 48 h and 7 days of culture with or without carnosine treatment.

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Breast cancer tumor microenvironment affects Treg/IL-17-producing Treg/Th17 cell axis: Molecular and therapeutic perspectives.

Mol Ther Oncolytics

March 2023

Department of Photo Healing and Regeneration, Medical Laser Research Center, Yara Institute, Academic Center for Education, Culture, and Research (ACECR), Tehran, Iran.

The tumor microenvironment (TME) comprises a variety of immune cells, among which T cells exert a prominent axial role in tumor development or anti-tumor responses in patients with breast cancer (BC). High or low levels of anti-inflammatory cytokines, such as transforming growth factor β, in the absence or presence of proinflammatory cytokines, such as interleukin-6 (IL-6), delineate the fate of T cells toward either regulatory T (Treg) or T helper 17 (Th17) cells, respectively. The transitional state of RORγtFoxp3 Treg (IL-17-producing Treg) resides in the middle of this reciprocal polarization, which is known as Treg/IL-17-producing Treg/Th17 cell axis.

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Photopolymerized silk fibroin gel for advanced burn wound care.

Int J Biol Macromol

April 2023

Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India. Electronic address:

The future of burn wound treatment lies in developing bioactive dressings for faster and more effective healing and regeneration. Silk fibroin (SF) hydrogels have proven regenerative abilities and are being explored as a burn wound dressing. However, unfavorable gelation conditions limit the processability and clinical application.

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Visible light laser direct-writing of high-resolution, biocompatible, super-multifunctional and tough hydrogels without photoinitiators in 30 s.

Biomater Adv

April 2023

Department of Biomedical Engineering, University of Calgary, 2500 University Dr. NW, Calgary, Alberta T2N 1N4, Canada; Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary T2N 1N4, Alberta, Canada. Electronic address:

Currently, the lack of bioinks and long printing time limits the further development of biofabrication. Here we report a novel biocompatible, multi-functional and tough 3D printable hydrogel via visible light photocrosslinking of polyvinyl alcohol bearing styrylpyridinium group (PVA-SbQ). The high-resolution PVA-SbQ hydrogels with different designed shapes can be generated via laser direct-writing in 30 s without extra toxic crosslinkers or photoinitiators, and demonstrates excellent biocompatibility.

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Photodynamic therapy (PDT) is a demonstrated therapeutic method for basal cellcarcinoma (BCC), which is the most common human cancer. Here, we present a case report about systemic PDT with chlorine e6 as a photosensitizer (PS) for BCC treatment. A 78-year-old man was diagnosed with a history of a 4-year nodular BCC in the nasal area.

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Background: Treatment of ingrown toenail includes various nonsurgical and surgical treatments. However, there is no consensus on the ideal first-choice treatment.

Objective: To compare phenolization versus surgical matricectomy (SM) after lateral nail plate avulsion in terms of efficacy, recurrence rates, postoperative outcomes, and cosmesis.

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Light Up the COVID-19.

J Med Signals Sens

November 2022

Department of Photo Healing and Regeneration, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran.

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Osteoporosis is associated with severe pain, bone deformity, fracture, and bone loss. It is important to find strategies to prevent bone resorption and treat osteoporosis. This study sought to assess the effect of photobiomodulation therapy (PBMT) with different wavelengths on bone mineral density (BMD) in osteoporotic rats.

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Background: Comedogenic lupus is an uncommon variant of cutaneous lupus, clinically characterized by the presence of comedones, papules and erythematous-infiltrated plaques, cysts and scars in photo-exposed areas, mimicking acne vulgaris and acneiform eruptions.

Objectives: To report clinicopathological characteristics of patients with comedogenic lupus in a tertiary dermatology service over a 15-year period and review cases described in the literature.

Methods: Retrospective study of patients with clinical and histopathological diagnoses of comedogenic lupus between the years 2006 and 2021.

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Immunized Microspheres Engineered Hydrogel Membrane for Reprogramming Macrophage and Mucosal Repair.

Small

April 2023

Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China.

The "double-edged sword" effect of macrophages under the influence of different microenvironments determines the outcome and prognosis of tissue injury. Accurate and stable reprogramming macrophages (Mφ) are the key to rapid wound healing. In this study, an immunized microsphere-engineered GelMA hydrogel membrane is constructed for oral mucosa treatment.

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The delayed healing of diabetic wounds is directly affected by the disturbance of wound microenvironment, resulting from persistent inflammation, insufficient angiogenesis, and impaired cell functions. Mesenchymal stem cell-derived extracellular vesicles (MSC-EVs) showed considerable therapeutic potential in diabetic wound healing. However, the low retention rate of MSC-EVs at wound sites hampers their efficacy.

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Extracellular vesicle-loaded hydrogels for tissue repair and regeneration.

Mater Today Bio

February 2023

Department of Plastic and Aesthetic (Burn) Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, People's Republic of China.

Extracellular vesicles (EVs) are a collective term for nanoscale or microscale vesicles secreted by cells that play important biological roles. Mesenchymal stem cells are a class of cells with the potential for self-healing and multidirectional differentiation. In recent years, numerous studies have shown that EVs, especially those secreted by mesenchymal stem cells, can promote the repair and regeneration of various tissues and, thus, have significant potential in regenerative medicine.

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Photo-crosslinked GelMA loaded with dental pulp stem cells and VEGF to repair critical-sized soft tissue defects in rats.

J Stomatol Oral Maxillofac Surg

February 2023

Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard School of Dental Medicine, Boston, MA, United States of America. Electronic address:

Background: Tissue engineering of skin and mucosa is essential for the esthetic and functional reconstruction of individuals disfigured by trauma, resection surgery, or severe burns while overcoming the limited amount of autograft and donor site morbidity.

Purpose: We aimed to determine whether a combination of Gelatin-methacryloyl (GelMA) hydrogel scaffold alone or loaded with either dental pulp stem cells (DPSCs) and/or vascular endothelial growth factor (VEGF) could improve skin wound healing in rats.

Materials And Methods: Four 10 mm full-thickness skin defects were created on the dorsum of 15 Sprague-Dawley rats.

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Chronic wound healing represents an impactful financial burden on healthcare systems. In this context, the use of natural products as an alternative therapy reduces costs and maintains effectiveness. Phytotherapeutic gels applied in photodynamic therapy (PDT) have been developed to act as topical healing medicines and antibiotics.

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Efficacy of Adjunctive Photobiomodulation in the Management of Medication-Related Osteonecrosis of the Jaw: A Systematic Review.

Photobiomodul Photomed Laser Surg

December 2022

Radiation Sciences Research Center, Laser Research Center in Medical Sciences, AJA University of Medical Sciences, Tehran, Iran.

Article Synopsis
  • MRONJ is a serious condition that causes bone death in the jaw due to medication, and there's no standard treatment yet.
  • This study systematically reviewed the effectiveness of photobiomodulation (PBM) therapy as a supplemental treatment for MRONJ, analyzing 11 qualified studies from a larger pool.
  • The findings indicate that PBM can significantly enhance treatment outcomes, especially for stage II MRONJ, but surgical intervention remains necessary for full healing.
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The aesthetic outcome is crucial in a breast reconstruction. Our aim was to evaluate the intra- and interrater reliability of an aesthetic outcome assessment scale with digital photos of breast reconstructions in two-dimensional (2D) and three-dimensional (3D) format. Thirty-three women with delayed breast reconstructions, consecutively participating in a five-year follow-up between November 2019 and June 2021, were included in the study.

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Post-surgical bone defects require new alternative approaches for a better healing process. For this matter, photobiomodulation therapy (PBMT) has been used in order to improve the process of healing, pain, and inflammation reduction and tissue rejuvenation. This study is set to evaluate the effect of PBMT on angiogenic and inflammatory factors for bone regeneration in rat post-surgical cranial defects.

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