نتایج جستجو برای: photodynamic therapy
تعداد نتایج: 655452 فیلتر نتایج به سال:
Introduction: Photodynamic therapy is a noninvasive therapeutic method for tumors with a maximum depth of 5 mm. On the other hand, most photosensitizers are also susceptible to ultrasound waves (the basis of sonodynamic therapy). Therefore, it is expected that a combination of the two therapeutic methods will increase effectiveness of photodynamic therapies for lower doses of sensitizer and cur...
introduction: cutaneous leishmaniasis (cl) is a widespread disease that is epidemic in iran, too. photodynamic therapy (pdt) is an attractive modality to treat cancer and hyper proliferative diseases based on the use of a photosensitizer in the presence of oxygen and proper wavelength of light. in consideration of lesion location, lack of systemic involvement and inefficiency of current treatme...
introduction: this study compared the efficacy of light-activated low-power laser, 2% chlorhexidine (chx) and 2.5% naocl in eliminating enterococcus faecalis ( e. faecalis) from the root canal system. methods and materials: the root canals of 60 maxillary central incisors were contaminated with e. faecalis and then the bacteria were incubated for 24 h. all the root canals were instrumented in a...
Accumulating evidence indicates that ATP-binding cassette (ABC) transporter ABCG2 plays a key role in regulating the cellular accumulation of porphyrin derivatives in cancer cells and thereby affects the efficacy of photodynamic therapy and photodynamic diagnosis. The activity of porphyrin efflux can be affected by genetic polymorphisms in the ABCG2 gene. On the other hand, Nrf2, an NF-E2-relat...
Carbon nanotubes (CNTs) have shown great potential in both photothermal therapy and drug delivery. In this study, a CNT derivative, hyaluronic acid-derivatized CNTs (HA-CNTs) with high aqueous solubility, neutral pH, and tumor-targeting activity, were synthesized and characterized, and then a new photodynamic therapy agent, hematoporphyrin monomethyl ether (HMME), was adsorbed onto the function...
introduction: the purpose of this study was to evaluate the antimicrobial photodynamic therapy (apdt) and low level laser therapy (lllt) on wound healing, pain intensity, swelling problems, halitosis and the postoperative usage of analgesics after surgical removal of lower third molars. methods: one hundred and fifty patients, randomly divided into three groups were selected (50 per each group)...
Background and Objective: Photodynamic therapy is a treatment that uses photosensitizer and intense visible light. When photosensitizers get exposed to a specific light wavelength (preferentially in the red region), they produce reactive oxygen species that are toxic to cells. Recently, attention has been focused on porphyrins and their analogs as photosensitizers. Zn (II) tetrapyridinoporphyra...
We compared the effects of monotherapy (photodynamic therapy or chemotherapy) versus combination therapy (photodynamic therapy plus a specific drug) on the non-small cell lung cancer cell line H1299. Our aim was to evaluate whether the additive/synergistic effects of combination treatment were such that the cytostatic dose could be reduced without affecting treatment efficacy. Photodynamic ther...
Recently, several in vitro and in vivo studies demonstrated promising results about the use of photodynamic therapy during root canal system disinfection. However, there is no consensus on a standard protocol for its incorporation during root canal treatment. The purpose of this study was to summarize the results of research on photodynamic therapy in endodontics published in peer-reviewed jour...
Recent decades have seen the inclusion of acne vulgaris as a potential new indication for photodynamic therapy. Photodynamic therapy and light sources can be considered to be additional tools for primary or adjunctive therapy in patients with recurrent acne or those in whom it is not possible to use other treatments. We investigated the use of pulsed dye laser plus methylaminolevulinate for pho...
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