Search results for "Photodynamic therapy"

Porokeratosis of Mibelli: A New Indication for Photodynamic Therapy?

2013

Long-Segment Early Squamous Cell Carcinoma of the Proximal Esophagus: Curative Treatment and Long-Term Follow-Up after 5-Aminolevulinic Acid (5-ALA)-…

2006

Photodynamic therapy (PDT) is an established treatment for the ablation of dysplastic Barrett's epithelium and early esophageal carcinoma, but no data have been published on curative 5-aminolevulinic acid (5-ALA)-PDT for long-segment early esophageal cancer with infiltration of the upper sphincter. We describe successful curative treatment of an unusual early long-segment squamous cell carcinoma (uT1a,N0) of the proximal esophagus (18 - 28 cm aborally), with three sessions of 5-ALA-PDT. Endoscopic and endosonographic follow-up macroscopically showed a complete remission of the tumor, proven by biopsy showing total histological ablation. After a follow-up period of 23 months, there has been …

Photodynamic Therapy in Subfoveal Choroidal Neovascularisation

2002

Summary The exudative form of age-related macular degeneration (AMD) is the leading cause of blindness among people over 50 years of age in the western world. In 2–10% of cases a subfoveal choroidal neovascularisation develops. Conventional laser treatment leads to an unspecific destruction of the CNV including adjacent retinal structures. In addition, significant and immediate vision loss occurs, particularly in cases with central, subfoveal localization of the CNV.Photodynamic therapy (PDT) employing photochemical activation of verteporfin as a photosensitizer induces selective occlusion of CNV with minimal damage to the neurosensory retina and does not impair visual acuity. It became ava…

Photoaging evaluation by RGB images using a smartphone for photodynamic therapy assessment

2017

In this study was evaluated the photoaging of patients' skins by the processing of RGB images acquired with an optical system based on a smartphone. Two groups were approached: a younger and an older.

Focal Therapy for Prostate Cancer: Complications and Their Treatment

2021

Focal therapy is a modern alternative to selectively treat a specific part of the prostate harboring clinically significant disease while preserving the rest of the gland. The aim of this therapeutic approach is to retain the oncological benefit of active treatment and to minimize the side-effects of common radical treatments. The oncological effectiveness of focal therapy is yet to be proven in long-term robust trials. In contrast, the toxicity profile is well-established in randomized controlled trials and multiple robust prospective cohort studies. This narrative review summarizes the relevant evidence on complications and their management after focal therapy. When compared to whole glan…

New Perspective to Improve Care of Patients with Infected Diabetic Foot Ulcer: Early Economic Impact of the Use of Photodynamic Therapy with RLP068 (…

2021

Valentina Lorenzoni,1 Agatina Chiavetta,2 Vincenzo Curci,3 Giuseppe Della Pepa,4 Carmelo Licciardello,5 Felicia Pantò,6 Alessia Scatena,7 Giuseppe Turchetti1 1Institute of Management, Scuola Superiore Sant’Anna, Pisa, Italy; 2A.O. Cannizzaro, Catania, Italy; 3Centro per La Cura del Piede Diabetico, Ospedale Costantino Cantù di Abbiategrasso, Milan, Italy; 4Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy; 5Unit of Metabolic and Endocrine Diseases, Centro Catanese di Medicina e Chirurgia, Catania, Italy; 6Section of Endocrinology, Biomedical Department of Internal and Specialist Medicine, University of Palermo, Palermo, Italy;…

Retrospective clinical evaluation of root canal treatment with or without photodynamic therapy for necrotic teeth and teeth subjected to retreatment.

2021

PURPOSE To compare the effect of photodynamic therapy (PDT) as a procedure to complement root canal treatment (RCT), for both primary treatment and retreatment. METHODS This was a retrospective study based on analysis of clinical records. A total of 214 teeth that had undergone RCT on either a primary or retreatment basis, with or without complementary PDT, were evaluated. For 118 teeth that met the previously established inclusion criteria, the time until healing was evaluated. Complementarily, the need for application of calcium hydroxide (CaHy) between visits and the number of visits necessary for completing the treatment were assessed. Data were analyzed using the Mann-Whitney and χ2 te…

Molecular and Translational Classifications of DAMPs in Immunogenic Cell Death

2015

The immunogenicity of malignant cells has recently been acknowledged as a critical determinant of efficacy in cancer therapy. Thus, besides developing direct immunostimulatory regimens, including dendritic cell-based vaccines, checkpoint-blocking therapies, and adoptive T-cell transfer, researchers have started to focus on the overall immunobiology of neoplastic cells. It is now clear that cancer cells can succumb to some anticancer therapies by undergoing a peculiar form of cell death that is characterized by an increased immunogenic potential, owing to the emission of the so-called "damage-associated molecular patterns" (DAMPs). The emission of DAMPs and other immunostimulatory factors by…

Delivery of siHIF‐1α to Reconstruct Tumor Normoxic Microenvironment for Effective Chemotherapeutic and Photodynamic Anticancer Treatments

2021

The tumor hypoxic microenvironment not only induces genetic and epigenetic changes in tumor cells, immature vessels formation for oxygen demand, but also compromises the efficiency of therapeutic interventions. On the other hand, conventional therapeutic approaches which kill tumor cells or destroy tumor blood vessels to block nutrition and oxygen supply usually facilitate even harsher microenvironment. Thus, simultaneously relieving the strained response of tumor cells and blood vessels represents a promising strategy to reverse the adverse tumor hypoxic microenvironment. In the present study, an integrated amphiphilic system (RSCD) is designed based on Angiotensin II receptor blocker cand…

Purification of Nano-Porous Silicon for Biomedical Applications

2011

Recently, various bio-medical applications of nanoporous silicon (np-Si) have been suggested. This work investigates the biocompatibility of np-Si particles taking into account hazardous residua confined in the pores after preparation. The emphasis is on the potential application of such particles as oxygen photosensitizer for photodynamic therapy of cancer, which requires both negligible toxicity of np-Si particles in darkness and a high photo-cyto-toxic effect due to generation of singlet oxygen under illumination. Considerable amounts of water soluble toxic impurities are found to be present in the nanoporous shell of micrometer-sized np-Si particles immediately after their preparation b…