Results 11 to 20 of about 91,005 (304)

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

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

Natural Melanin-Based Nanoparticles With Combined Chemo/Photothermal/Photodynamic Effect Induce Immunogenic Cell Death (ICD) on Tumor

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Melanin, as a natural product, has been used as an extraordinary ingredient for nanomedicine due to its great biocompatibility and light responsive property.
Ding Liu   +3 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

SYNTHESIS OF DYNAMIC RIBOFLAVIN DERIVATIVES AND THE STUDY OF THEIR ABILITY TO UREASE PHOTOINACTIVATION [PDF]

open access: yesAnnals of Mechnikov's Institute, 2019
Introduction. In one patents demonstrated the riboflavin ability to inactivate vaccine strains of viruses and bacteria, as well as cancer cells during the production of vaccines .
Martynov, A.V.   +4 more
doaj   +3 more sources

Targeted Nanoparticles for Fluorescence Imaging of Folate Receptor Positive Tumors

open access: yesBiomolecules, 2020
This report presents the synthesis and folate receptor target-specificity of amino-functionalized polyacrylamide nanoparticles (AFPAA NPs) for near-infrared (NIR) fluorescence imaging of cancer. For the synthesis of desired nano-constructs, the AFPAA NPs
Aimee J. Marko   +7 more
doaj   +1 more source

Polyphotosensitizer‐Based Nanoparticles with Michael Addition Acceptors Inhibiting GST Activity and Cisplatin Deactivation for Enhanced Chemotherapy and Photodynamic Immunotherapy

open access: yesAdvanced Science, 2023
Glutathione S‐transferase (GST), which is a key enzyme in the conjugation reaction of glutathione (GSH), is overexpressed in cancer cells, leading to cisplatin deactivation and ultimately drug resistance. In addition, many tumors are immune “cold tumors,”
Qinxin Zhao   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy