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The photodynamic and non-photodynamic actions of porphyrins [PDF]

open access: yesBrazilian Journal of Medical and Biological Research, 1999
Porphyrias are a family of inherited diseases, each associated with a partial defect in one of the enzymes of the heme biosynthetic pathway. In six of the eight porphyrias described, the main clinical manifestation is skin photosensitivity brought about ...
S.G. Afonso   +2 more
doaj   +5 more sources

Photodynamic Therapy

open access: yesBiomedicines, 2022
In 1903, Von Tappeiner and Jesionek [...]
Kyungsu Kang, Stefano Bacci
openaire   +3 more sources

Orally delivered rutin in lipid-based nano-formulation exerts strong antithrombotic effects by protein disulfide isomerase inhibition

open access: yesDrug Delivery, 2022
Thrombosis occurs in both macrovasculature and microvasculature, causing various cardio-cerebral vascular diseases. The lack of effective and safe antithrombotic drugs leads to a public health crisis.
Dan Chen   +6 more
doaj   +1 more source

Enhanced lipid metabolism induces the sensitivity of dormant cancer cells to 5-aminolevulinic acid-based photodynamic therapy

open access: yesScientific Reports, 2021
Cancer can develop into a recurrent metastatic disease with latency periods of years to decades. Dormant cancer cells, which represent a major cause of recurrent cancer, are relatively insensitive to most chemotherapeutic drugs and radiation.
Taku Nakayama   +8 more
doaj   +1 more source

Accelerating skin regeneration and wound healing by controlled ROS from photodynamic treatment

open access: yesInflammation and Regeneration, 2022
Cellular metabolisms produce reactive oxygen species (ROS) which are essential for cellular signaling pathways and physiological functions. Nevertheless, ROS act as “double-edged swords” that have an unstable redox balance between ROS production and ...
Khatereh Khorsandi   +5 more
doaj   +1 more source

Photodynamic Therapy in Combination with Doxorubicin Is Superior to Monotherapy for the Treatment of Lung Cancer

open access: yesBiomedicines, 2022
We have previously shown that a radioactive (123I)-analog of methyl 3-(1′-(iodobexyloxy) ethyl-3-devinylpyropheophorbide-a (PET-ONCO), derived from chlorophyll-a can be used for positron emission tomography (PET) imaging of a variety of tumors, including
Joseph C. Cacaccio   +3 more
doaj   +1 more source

Nanomaterial-based photodynamic therapy for antibacterial applications: a comprehensive review

open access: yesFrontiers in Materials, 2023
Microbial infections continue to pose a significant health challenge, especially with an increase in drug-resistant bacteria. Conventional antibiotic treatments show limited efficacy, prompting researchers to explore alternative treatments.
Yujie Gao   +6 more
doaj   +1 more source

Photodynamic Therapy [PDF]

open access: yesJNCI Journal of the National Cancer Institute, 1998
Photodynamic therapy involves administration of a tumor-localizing photosensitizing agent, which may require metabolic synthesis (i.e., a prodrug), followed by activation of the agent by light of a specific wavelength. This therapy results in a sequence of photochemical and photobiologic processes that cause irreversible photodamage to tumor tissues ...
T J, Dougherty   +7 more
openaire   +2 more sources

Immunomodulatory Effects by Photodynamic Treatment of Glioblastoma Cells In Vitro

open access: yesMolecules, 2022
Multimodal treatment adding immunotherapy and photodynamic treatment (PDT) to standard therapy might improve the devastating therapeutic outcome of glioblastoma multiforme patients.
Friederike Rothe   +3 more
doaj   +1 more source

A Transcriptomic Approach to the Metabolism of Tetrapyrrolic Photosensitizers in a Marine Annelid

open access: yesMolecules, 2021
The past decade has seen growing interest in marine natural pigments for biotechnological applications. One of the most abundant classes of biological pigments is the tetrapyrroles, which are prized targets due their photodynamic properties; porphyrins ...
Maria Leonor Santos   +4 more
doaj   +1 more source

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