Results 21 to 30 of about 3,474 (201)

Sonodynamic Effects of a Novel Ether-Group Modified Porphyrin Derivative Combined With Pulsed Low-Intensity Ultrasound on PC-9 Cells

open access: yesFrontiers in Pharmacology, 2021
Sonodynamic therapy (SDT) is a developing modality for cancer treatment based on the synergistic effect of ultrasound and chemical compounds which are known as sonosensitizers.
Yinghua Jin   +11 more
doaj   +1 more source

New Approaches to Photodynamic Therapy from Type I, II and III to Type IV Using One or More Photons [PDF]

open access: yes, 2017
Photodynamic therapy (PDT) is an alternative cancer treatment to conventional surgery, radiotherapy and chemotherapy. It is based on activating a drug with light that triggers the generation of cytotoxic species that promote tumour cell killing.
Bisby, RH   +3 more
core   +2 more sources

Overview on topical 5-ALA photodynamic therapy use for non melanoma skin cancers [PDF]

open access: yes, 2014
Ultraviolet radiation (UV) contributes to a variety of skin diseases including inflammation, degenerative aging, and cancer. Historically, humans have been exposed to UV radiation mainly through occupational exposure; recreational UV exposure, however ...
Bianchini, Daniela   +7 more
core   +3 more sources

Photodynamic Therapy—Current Limitations and Novel Approaches

open access: yesFrontiers in Chemistry, 2021
Photodynamic therapy (PDT) mostly relies on the generation of singlet oxygen, via the excitation of a photosensitizer, so that target tumor cells can be destroyed. PDT can be applied in the settings of several malignant diseases.
Gurcan Gunaydin   +2 more
doaj   +1 more source

Photodynamic therapy: A promising new modality for the treatment of cancer [PDF]

open access: yes, 1996
The first reports on photodynamic therapy (PDT) date back to the 1970s. Since then, several thousands of patients, both with early stage and advanced stage solid tumours, have been treated with PDT and many claims have been made regarding its efficacy ...
Baas, P. (Paul)   +5 more
core   +1 more source

Ultraviolet A Irradiation Induces NF-E2-Related Factor 2 Activation in Dermal Fibroblasts: Protective Role in UVA-Induced Apoptosis [PDF]

open access: yes, 2005
Ultraviolet (UV) radiation is one of the most important environmental factors involved in the pathogenesis of skin aging and cancer. Many harmful effects of UV radiation are associated with the generation of reactive oxygen species, and cellular ...
Banno Tomohiro   +9 more
core   +1 more source

Light delivery and light dosimetry for photodynamic therapy [PDF]

open access: yes, 1990
Photodynamic therapy (PDT) has attracted attention because it was considered to be a selective form of cancer treatment causing minimal damage to normal tissues.
Star, W.M. (W.)
core   +1 more source

Enhanced response of the fricke solution doped with hematoporphyrin under X-rays irradiation [PDF]

open access: yes, 2008
The vials filled with Fricke solutions were doped with increasing concentrations of Photogem®, used in photodynamic therapy. These vials were then irradiated with low-energy X-rays with doses ranging from 5 to 20 Gy.
AUSTERLITZ, Carlos   +5 more
core   +2 more sources

Dynamics of pH-dependent self-association and membrane binding of a dicarboxylic porphyrin: a study with small unilamellar vesicles [PDF]

open access: yes, 1984
Steady-state and stopped-flow measurements of the absorbance and fluorescence of aqueous solutions were performed to characterize the pH-dependent ionization and aggregation states of deuteroporphyrin.
Stéphanie Bonneau   +46 more
core   +1 more source

Pharmacokinetics of Photogem Using Fluorescence Spectroscopy in Dimethylhydrazine-Induced Murine Colorectal Carcinoma

open access: yesInternational Journal of Photoenergy, 2012
This study aimed to investigate the pharmacokinetics of a hematoporphyrin derivative in colonic tumors induced by dimethylhydrazine and adjacent normal colon in Wistar rats using an in vivo fluorescence spectroscopy technique.
Raduan Hage   +4 more
doaj   +1 more source

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