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Monday, May 11, 2020 | History

3 edition of Cellular responses to photodynamic action found in the catalog.

Cellular responses to photodynamic action

Robert Neil Eisenman

Cellular responses to photodynamic action

by Robert Neil Eisenman

  • 29 Want to read
  • 25 Currently reading

Published .
Written in English


Edition Notes

Statementby Robert Neil Eisenman.
Classifications
LC ClassificationsMicrofilm 40400 (Q)
The Physical Object
FormatMicroform
Paginationx, 191 leaves
Number of Pages191
ID Numbers
Open LibraryOL2162558M
LC Control Number88893819

Photodynamic therapy (PDT) is a cancer treatment involving the generation of reactive oxygen species (ROS) by laser irradiation of porphyrins that accumulate in cancer tissues. 5-aminolevulinic acid (ALA), a porphyrin precursor, is often used as a photosensitizer. ALA is imported into cells via peptide transporter 1 (PEPT1), and porphyrin is exported via ATP-binding cassette member 2 of Cited by: 2. The effect of photodynamic action on two virulence factors of Gram-negative bacteria. Photochem. Photobiol. 72(5),– (). Demonstrated that the biological activity of lipopolisaccharides and proteases from Pseudomonas aeruginosa is significantly reduced after photodynamic ef, Medline, CAS, Google ScholarCited by:

In Photodynamic Therapy: Methods and Protocols, leading PDT scientists and clinicians provide the first comprehensive collection of methods and protocols specifically related to relevant mechanistic, dosimetric, preclinical, and clinical procedures used in current PDT research. Reflecting the growing number of studies demonstrating that. Title:Photo- and Sono-Dynamic Therapy: A Review of Mechanisms and Considerations for Pharmacological Agents Used in Therapy Incorporating Light and Sound VOLUME: 25 ISSUE: 4 Author(s):Yanye Yang, Juan Tu*, Dongxin Yang, Jason L. Raymond*, Ronald A. Roy and Dong Zhang Affiliation:Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Cited by: 1.

Photodynamic therapy (PDT) is a treatment that uses a drug, called a photosensitizer or photosensitizing agent, and a particular type of photosensitizers are exposed to a specific wavelength of light, they produce a form of oxygen that kills nearby cells (1 3).. Each photosensitizer is activated by light of a specific wavelength (3, 4). This book covers the broad field of cellular, molecular, preclinical, and clinical imaging either associated with or combined with photodynamic therapy (PDT). It showcases how this approach is used clinically for cancer, infections, and diseases characterized by unwanted tissue such as atherosclerosis or : Michael R. Hamblin, Yingying Huang.


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Cellular responses to photodynamic action by Robert Neil Eisenman Download PDF EPUB FB2

Introduction. Photodynamic therapy (PDT) can be defined as the administration of a nontoxic drug or dye known as a PS either systemically, locally, or topically to a patient bearing a lesion (frequently but not always cancer), followed after some time by the illumination of the lesion with visible light (usually long wavelength red light), which, in the presence of oxygen, leads to the Cited by: Mechanisms of subcellular and tumor localization of photosensitizing agents, as well as of molecular, cellular, and tumor responses associated with photodynamic therapy, are discussed.

Photodynamic therapy is a minimally invasive therapeutic procedure that can exert a selective or preferential cytotoxic activity toward malignant cells. The procedure involves administration of an intrinsically non-toxic photosensitizing agent (PS) followed by irradiation at a wavelength corresponding to a visible absorption band of the sensitizer.

Book Description. Covering all aspects of photodynamic therapy, 70 expert contributors from the fields of photochemistry, photobiology, photophysics, pharmacology, oncology and surgery, provide multidisciplinary discussions on photodynamic therapy - a rapidly-developing approach to the treatment of solid tumours.;Photodynamic Therapy: Basic Principles and Clinical Applications describes the.

Photodynamic Therapy in Skin Cancer. cellular, and tumor responses associated with photodynamic therapy, are discussed. invoked in the action of photodynamic therapy (PDT) and some other.

Cellular responses to photodynamic action book Background. Photochemotherapy of cancer is often called “photodynamic therapy (PDT).” The term “photodynamic action” is used to distinguish photosensitized reactions in biology from the physicochemical processes occurring in the emulsions of photographic suggested that this definition should be applied only to photochemical reactions in which oxygen was consumed.

Schmidt-Erfurth, U. & Hasan, T. Mechanisms of action of photodynamic therapy with verteporfin for the treatment of age-related macular degeneration. Surv. Ophthalmol.

45, Cited by: Introduction. Photodynamic action as a physiological curiosity has a long history, dating back to more than a century ago (for an early review on this topic, please see Blum, ).Investigation of photodynamic modulation of cellular physiology, however, has been rather limited until the recent by: 7.

Jonas G. Croissant, Jean-Olivier Durand, in The Enzymes, 4 Two-Photon-Excited Photodynamic Therapy. Photodynamic therapy is a treatment that uses photo-responsive drugs, called photosensitizers, to kill cancer cells by producing electron upon light stimulus which in turn reacts with oxygen or biomolecules to generate cytotoxic reactive oxygen production (ROS) [24,89,].

This book covers the broad field of cellular, molecular, preclinical, and clinical imaging either associated with or combined with photodynamic therapy (PDT). It showcases how this approach is used clinically for cancer, infections, and diseases characterized by unwanted tissue such as atherosclerosis or : Hardcover.

Photodynamic therapy (PDT) is dependent on the uptake of a photosensitizing dye, often a porphyrin-related macrocycle, by the tumor or other abnormal tissue that is to be treated, the subsequent irradiation of the tumor with visible light of an appropriate wavelength matched to the absorption spectrum of the dye, and molecular oxygen to generate reactive oxygen by: PHOTODYNAMIC ACTION PHOTODYNAMIC ACTION Harold F.

Blum ACTION Medical School, Berkeley, University of California California Photosensitization to light by substances not normally present in biological systems of their environment is commonly designated as photodynamic action.

This use of the term originated with Tappeiner () who, together with his students, Author: Harold F. Blum. ISBN: OCLC Number: Description: xvi, pages: illustrations ; 24 cm: Contents: Historical perspective / Thomas J. Dougherty [and others] --Fluorescence and photodynamic effects of phthalocyanines and porphyrins in cells / Johan Moan [and others] --Photodynamic therapy: membrane and enzyme photobiology / Tom M.A.R.

Dubbelman [and others]. Braz J Med Biol Res, MarchVolume 32(3) The photodynamic and non-photodynamic actions of porphyrins. S.G. Afonso 1,2, R. Enríquez de Salamanca 2 and A.M. del C. Batlle 1. 1 Centro de Investigaciones sobre Porfirinas y Porfirias (CIPYP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.

Photodynamic therapy (PDT), Spatially Resolved Cellular Responses to Singlet Oxygen. Photochemistry and Photobiology, Vol. 82, No. Photodynamic Therapy for Cancer. Selective activation by photodynamic action of cholecystokinin receptor in the freshly isolated rat pancreatic by: Photodynamic therapy (PDT), is a form of phototherapy involving light and a photosensitizing chemical substance, used in conjunction with molecular oxygen to elicit cell death (phototoxicity).PDT has proven ability to kill microbial cells, including bacteria, fungi and viruses.

PDT is popularly used in treating is used clinically to treat a wide range of medical conditions, including Other names: photochemotherapy.

Photodynamic therapy (PDT) is a minimally invasive procedure with increasing promise in treatment of malignant and nonmalignant diseases. Most PDT studies have focused on issues of how to enhance the photocytotoxic reaction leading to apoptosis and/or necrosis of targeted tumor cells.

However, the reactions of surviving cancer cells, as well as normal host cells, are important elements Cited by: PDT may also be usful as a tool to analyze certain cellular-molecular pathways. Introduction The mechanisms of PDT are subdivided into four chapters in this book, namely: (1) photophysical and photochemical reactions, (2) molecular effects, (3) cellular and vascular phototoxicity, and (4) immunological : Anne C.E.

Moor, Bernhard Ortel. Summary Covering all aspects of photodynamic therapy, 70 expert contributors from the fields of photochemistry, photobiology, photophysics, pharmacology, oncology and surgery, provide multidisciplinary discussions on photodynamic therapy - a rapidly-developing approach to the treatment of solid tumours.;Photodynamic Therapy: Basic Principles and Clinical Applications describes the.

According to standard evolutionary theory, the early atmosphere of the earth was reducing and the first living organisms thus evolved in the absence of free molecular oxygen (1). With the appearance Cited by:. Song J, Wei Y, Chen Q and Xing D Cyclooxygenase 2-mediated apoptotic and inflammatory responses in photodynamic therapy treated breast adenocarcinoma cells and xenografts J.

Photochem. Photobiol. B 27– Crossref.» Photodynamic Cancer Therapy | We are an internationally operating cellular treatment organisation with affiliated clinics in Asia and Europe where we treat patients with unmet medical needs by combining modern technology in the advanced science driven area of Bioenergy, Information field, frequency and Laser therapy with cellular and stem cell treatments.[11] T.I.

Karu and S.F. Kolyakov, Exact action spectra for cellular responses relevant to phototherapy, Photomed Laser Surg 23 () [12] D. Pastore, M. Greco and S. Passarella, Specific helium-neon laser sensitivity of the purified cytochrome c oxidase, Int J Radiat Biol 76 ()