Purpose: To demonstrate, using optical coherence and fluorescien angiography, the efficacy of photodynamic therapy in treating chronic central serous chorioretinopathy.
Design: Interventional case series.
Methods: A retrospective study in a clinical practice setting of four patients (five eyes) with chronic central serous chorioretinopathy. The patients were treated with verteporfin photodynamic therapy and evaluated by optical coherence tomography and fluorescien angiography with average follow-ups of 10 months.
Results: Compared to pre-treatment optical coherence tomography, an acute reduction in subretinal fluid accumulation and serous detachment with stoppage of leakage was noted in the five eyes treated. Dramatic improvement in visual acuity was also noted, especially among patients with better vision initially. However, pigmentary changes persisted.
Conclusion: Serial optical coherence tomography demonstrates that photodynamic therapy with verteporfin appears to have a beneficial effect in treating patients with chronic central serous chorioretinopathy by reducing fluid leakage, subretinal fluid accumulation, and serous detachment with resultant improvement in vision. Better visual results might be expected if photodynamic therapy is applied earlier in the course of the disease.
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http://dx.doi.org/10.1016/j.ajo.2004.01.043 | DOI Listing |
Angew Chem Int Ed Engl
January 2025
Michigan State University, Biochemistry and Molecular Biology, Biochemistry Building, 603 Wilson Rd, Lunt Lab, 48824, 48824, East Lansing, UNITED STATES OF AMERICA.
Photodynamic therapy (PDT) has emerged as a promising targeted treatment for cancer. However, current PDT is limited by low tissue penetration, insufficient phototoxicity (toxicity with light irradiation), and undesirable cytotoxicity (toxicity without light irradiation). Here, we report the discovery of cyanine-carborane salts as potent photosensitizers (PSs) that harness the near-infrared (NIR) absorbing [cyanine+] with the inertness of [carborane-].
View Article and Find Full Text PDFPhotochem Photobiol Sci
January 2025
Nanosensors Laboratory, Research & Development Institute, University of Vale do Paraíba, Av. Shishima Hifumi, 2911, Urbanova, São José dos Campos, São Paulo, Brazil.
Breast cancer is the deadliest cancer among women and its treatment using traditional methods leads the patient to experience adverse effects. However, photodynamic therapy (PDT) is a non-invasive therapy modality that works through a photosensitizing agent, which treating activated by a suitable light source, releases reactive oxygen species capable of treating cancer. Furthermore, recent research indicates that combining PDT and nanoparticles can enhance therapeutic effects.
View Article and Find Full Text PDFACS Appl Bio Mater
January 2025
Department of Chemistry, University of North Dakota, Grand Forks, North Dakota 58202, United States.
Synergistic photodynamic/photothermal therapy (PDT/PTT) can be used to target cancer cells by locally generating singlet oxygen species or increasing temperature under laser irradiation. This approach offers higher tumor ablation efficiency, lower therapeutic dose requirements, and reduced side effects compared to single treatment approaches. However, the therapeutic efficiency of PDT/PTT is still limited by the low oxygen levels within the solid tumors caused by abnormal vasculature and altered cancer cell metabolism.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou 225001, China.
The intricacy, diversity, and heterogeneity of cancers make research focus on developing multimodal synergistic therapy strategies. Herein, an oxygen (O) self-feeding peroxisomal lactate oxidase (LOX)-based LOX-Ce6-Mn (LCM) was synthesized using a biomineralization approach, which was used for cascade chemodynamic therapy (CDT)/photodynamic therapy (PDT) combination therapies through dual depletion of lactate (Lac) and reactive oxygen species (ROS) generation. After endocytosis into tumor cells, the endogenous hydrogen peroxide (HO) can be converted to O by the catalase-like (CAT) activity of LCM, which can facilitate the catalytic reaction of LOX to consume more Lac and alleviate tumor hypoxia to enhance the generation of singlet oxygen (O) upon light irradiation.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2025
Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266071, China.
Rheumatoid arthritis (RA) is a common chronic systemic autoimmune disease that often results in irreversible joint erosion and disability. Methotrexate (MTX) is the first-line drug against RA, but the significant side effects of long-term administration limit its use. Therefore, new therapeutic strategies are needed for treating RA.
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