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Photodynamic Therapy with a New Photosensitizing Agent

Photomedicine and Laser Surgery, 2007
Objective: The aim of this study was to investigate the cytotoxicity of octal-bromide zinc phthalocyanine (ZnPcBr 8 ) before and after irradiation with a low-power laser (AsGaAl) and analyze the effects of photodynamic therapy (PDT) on the nucleus of L929 cells.
Aline Helena Araujo, Machado   +5 more
openaire   +2 more sources

Photosensitizers Binding to Nucleic Acids as Anticancer Agents

Future Medicinal Chemistry, 2016
Cationic porphyrins (Prs) and phthalocyanines (Pcs) are strong photosensitizers that have drawn much attention for their potential in photodynamic therapy. These compounds have the interesting property of binding to nucleic acids, in particular G-rich quadruplex-forming sequences in DNA and RNA.
XODO, Luigi   +2 more
openaire   +3 more sources

Eradication of Acinetobacter baumannii by photosensitized agents in vitro

Journal of Photochemistry and Photobiology B: Biology, 1998
The photodynamic effects of photosensitizers on Acinetobacter baumannii were studied. These Gram negative bacteria have recently been implicated in various infections, mainly acquired in hospitals. They have outstanding characteristics of multidrug high resistance to antimicrobial agents. The best photodynamic effect was obtained when A.
Y, Nitzan   +2 more
openaire   +2 more sources

Cutaneous photosensitivity diseases induced by exogenous agents

Journal of the American Academy of Dermatology, 1995
Cutaneous photosensitivity diseases may be idiopathic, produced by endogenous photosensitizers, or associated with exogenous photosensitizers. Those caused by exogenous agents include phototoxicity, photoallergy, and the exacerbation or induction of systemic disorders in which photosensitivity is a prominent clinical manifestation. Phototoxic disorders
J W, Gould, M G, Mercurio, C A, Elmets
openaire   +2 more sources

IS PENICILLIN A PHOTOSENSITIZING AGENT?

Archives of Dermatology, 1945
It is a well known fact that penicillin therapy produces few reactions. Urticaria seems to be the most common cutaneous reaction. In this report the possibility is suggested that penicillin acts as a photosensitizing agent. Photodermatitis of vegetable origin has already been well studied.1It is due in most instances to external contact of the patient
openaire   +1 more source

Photosensitizers as virucidal agents.

Journal of photochemistry and photobiology. B, Biology, 1993
The photosensitizer, benzoporphyrin derivative monoacid ring A (BPD-MA) has been studied regarding its ability to destroy enveloped viruses in blood and blood products when activated by light. Its maximum wavelength of absorption (690 nm) has proven useful in terms of activation of the photosensitizer in materials containing red blood cells ...
J, North, H, Neyndorff, J G, Levy
openaire   +1 more source

A carbohydrate-linked hypericinic photosensitizing agent

Monatshefte für Chemie - Chemical Monthly, 2008
With respect to an enhanced solubility under physiological conditions, a carbohydrate-containing hypericin-based second-generation photosensitizer was prepared. Its photochemical properties were tested by means of the light-sensitized destruction of bilirubin IXα to be even better than those of the parent compound hypericin.
Joachim Zuschrader   +2 more
openaire   +1 more source

Photosensitization by antitumor agents, 4. Anthrapyrazole-photosensitized formation of single strand-breaks in DNA

Free Radical Biology and Medicine, 1988
Single-strand breaks can be introduced into PM2 closed-circular DNA upon illumination with blue light, in the presence of the anthrapyrazole antitumor agent, compound 1. Damage is observed already after 1 min of blue light illumination, and is significantly enhanced by the presence of electron donors such as NADH, ascorbic acid or Fe(III)/EDTA complex.
J A, Hartley, K, Reszka, J W, Lown
openaire   +2 more sources

[Exogenous photosensitizing agents].

La Revue du praticien, 1992
The frequent use of remedies either in topical or systemic form has led to a rising number of photosensitizations. The different cutaneous manifestations of exogenous photosensitizers e.g. phototoxicity and photoallergy, are described. We treat the most important agents of these reactions and lay stress upon the patient's interview and the phototesting
C, Loesche, O, Podglajen, P, Thomas
openaire   +1 more source

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