Ex vivo fluorescence imaging of normal and malignant urothelial cells to enhance early diagnosis.

abstract：:Strawberry (Fragaria ananassa) fruit size and flavor are important to both growers and consumers. Plastic mulches are frequently used in raised-bed culture to conserve water, control weeds with less herbicides, keep fruit clean and produce ripe berries earlier in the season. The most commonly used plastic mulch color ...

journal_title：Photochemistry and photobiology

authors： Kasperbauer MJ,Loughrin JH,Wang SY

更新日期：2001-07-01 00:00:00

abstract：:The thermodynamics of binding of Me-alpha(-GalNAc, Gal-beta-1-3GalNAc-alpha-O-Me (T-antigen-alpha), Gal-beta-1-3GalNAc and Gal-alpha-1-6Glc (mellibiose) to Artocarpus hirsuta lectin was studied using fluorescence spectroscopy. The binding affinities of the saccharides are in the order Gal-beta-1-3GalNAc-alpha-O-Me > M...

journal_title：Photochemistry and photobiology

authors： Gaikwad SM,Khan MI

更新日期：2006-09-01 00:00:00

abstract：:We report here the design and synthesis of porphyrin-metallocene dyads consisting of a metallocene [either ferrocene or mixed sandwich η(5)-[C5H4(COOH)]Co(η(4)-C4Ph4) connected via an ester linkage at meso phenyl position of either free-base or zinc porphyrin. All these dyad systems were characterized by various spect...

journal_title：Photochemistry and photobiology

authors： Gokulnath S,Achary BS,Kumar CK,Trivedi R,Sridhar B,Giribabu L

更新日期：2015-01-01 00:00:00

abstract：:Low-power lasers are commonly used in human medicine for treatment of various pathological conditions, but mechanisms of their healing effects are still poorly understood. The results of this study provide information related to these effects at the cellular level. Two different protozoan species, Euglena gracilis and...

journal_title：Photochemistry and photobiology

authors： Koutna M,Janisch R,Unucka M,Svobodnik A,Mornstein V

更新日期：2004-11-01 00:00:00

abstract：:Although allergic rhinitis is not life threatening, it significantly influences the quality of a patient's life. This study is intended to evaluate the safety and efficacy of phototherapy with low-level energy of a 650 nm laser irradiation system in perennial allergic rhinitis patients. This clinical trial was an open...

journal_title：Photochemistry and photobiology

authors： Lee HM,Park MS,Park IH,Lee SH,Lee SK,Kim KS,Choi H

更新日期：2013-05-01 00:00:00

abstract：:Photosensitizers (PS) are compounds that can generate reactive oxygen species under irradiation of appropriate light and are widely used in photodynamic therapy (PDT). Currently, topical PDT is an effective treatment for several skin diseases, including bacterial infections, fungal mycoses and psoriasis. In addition, ...

journal_title：Photochemistry and photobiology

authors： de França BM,Ghasemishahrestani Z,de Souza GFM,da Silva RN,Queiroz DD,Pierre MBR,Pereira MD,Forero JSB,Corrêa RJ

更新日期：2020-09-23 00:00:00

abstract：:Synovial sarcoma (SS) is one of common malignant soft-tissue tumors and is encountered most commonly in children and young adults. It frequently involves or invades major neurovascular structures and bones, and its local recurrence rate after simple resection has been reported to be as high as up to 80%. Because major...

journal_title：Photochemistry and photobiology

authors： Kusuzaki K,Murata H,Matsubara T,Miyazaki S,Shintani K,Seto M,Matsumine A,Hosoi H,Sugimoto T,Uchida A

更新日期：2005-05-01 00:00:00

abstract：:Macroalgae distributed in intertidal zones experience a series of environmental changes, such as periodical desiccation associated with tidal cycles, increasing CO2 concentration and solar UVB (280-315 nm) irradiance in the context of climate change. We investigated how the economic red macroalga, Pyropia haitanensis,...

journal_title：Photochemistry and photobiology

authors： Xu J,Gao K

更新日期：2015-11-01 00:00:00

abstract：:Dermatophytes are fungi that can cause infections (known as tinea) of the skin, hair and nails because of their ability to use keratin. Superficial mycoses are probably the most prevalent of infectious diseases worldwide. One of the most distinct limitations of the current therapeutic options is the recurrence of the ...

journal_title：Photochemistry and photobiology

authors： Smijs TG,Schuitmaker HJ

更新日期：2003-05-01 00:00:00

abstract：:Tetraarylporphyrins substituted with nitro groups at beta-pyrrolic positions are potential candidates for electron-accepting pigments in model systems for photosynthesis. The photophysics of 2-nitro-5,10,15,20-tetra-p-tolylporphyrin and its zinc analog have been studied in order to evaluate this potential. The ground ...

journal_title：Photochemistry and photobiology

authors： Gust D,Moore TA,Luttrull DK,Seely GR,Bittersmann E,Bensasson RV,Rougée M,Land EJ,De Schryver FC,Van der Auweraer M

更新日期：1990-04-01 00:00:00

abstract：:To determine the impact of delivery vehicles in photosensitizing efficacy of HPPH, a hydrophobic photosensitizer was dissolved in various formulations: 1% Tween 80/5% dextrose, Pluronic P-123 and Pluronic F-127 in 0.5%, 1% and 2% phosphate buffer solutions (PBS). HPPH was also conjugated to Pluronic F-127, and the res...

journal_title：Photochemistry and photobiology

authors： Cacaccio J,Durrani F,Cheruku RR,Borah B,Ethirajan M,Tabaczynski W,Pera P,Missert JR,Pandey RK

更新日期：2020-05-01 00:00:00

abstract：:We recently reported that variations in cellular phototoxicity among a series of alkynyl-substituted zinc trisulfophthalocyanines (ZnPcS3Cn) correlates with their hydrophobicity, with the most amphiphilic derivatives showing the highest cell uptake and phototoxicity. In this study we address the role of the plasma mem...

journal_title：Photochemistry and photobiology

authors： Cauchon N,Nader M,Bkaily G,van Lier JE,Hunting D

更新日期：2006-11-01 00:00:00

abstract：:It is generally assumed that a central metal is essential for the efficiency of phthalocyanines in photodynamic therapy (PDT) of cancer. Contrary to the set opinion, the results of the present study indicate that the metal-free sulfonated phthalocyanines (H2PcSn, where n is the number of sulfonate groups per molecule)...

journal_title：Photochemistry and photobiology

authors： Feofanov A,Grichine A,Karmakova T,Kazachkina N,Pecherskih E,Yakubovskaya R,Luk'yanets E,Derkacheva V,Egret-Charlier M,Vigny P

更新日期：2002-05-01 00:00:00

abstract：:Among beetle luciferases, the pH-sensitive firefly luciferases have been studied extensively. Much less is known about pH-insensitive luciferases, which include click beetle and railroad worm luciferases. Previously, we found that the residues R215 and T226 (N230) are important for green light emission. Here we show t...

journal_title：Photochemistry and photobiology

authors： Viviani VR,Uchida A,Viviani W,Ohmiya Y

更新日期：2002-11-01 00:00:00

abstract：:C-Phycocyanin (PC) trimers associated with linker polypeptides were isolated from the phycobilisome (PBS) rods of Synechococcus sp. PCC 7002. LXY refers to a linker polypeptide (L) having an apparent mass of Y kDa, located at position X in the phycobilisome where X can be R (rod), C (core) or RC (rod-core junction). M...

journal_title：Photochemistry and photobiology

authors： Pizarro SA,Sauer K

更新日期：2001-05-01 00:00:00

abstract：:The aim of this investigation is the evaluation of DNA interaction of with tetraruthenated porphyrin (TRP) and of DNA damage in the presence of light. Direct-fluorescence and electronic absorption measurements after incubation of DNA with TRP indicate strong binding between pBR322 DNA or calf thymus DNA with the modif...

journal_title：Photochemistry and photobiology

authors： Onuki J,Ribas AV,Medeiros MH,Araki K,Toma HE,Catalani LH,Di Mascio P

更新日期：1996-03-01 00:00:00

abstract：:Endogenous cellular chromophores absorb ultraviolet A radiation (UVA, 290-320 nm), the major UV component of terrestrial solar radiation, leading to the formation of reactive oxidizing species that initiate apoptosis, gene expression and mutagenesis. UVA-induced apoptosis of T helper cells is believed to underlie the ...

journal_title：Photochemistry and photobiology

authors： Zhuang S,Kochevar IE

更新日期：2003-07-01 00:00:00

abstract：:UV light leads to release of different secretory factors from irradiated cells of which some of them have been characterized. We have reported earlier that cells exposed to the supernatant medium from irradiated cells were resistant to killing by some genotoxic agents. In this study, we present our finding that demons...

journal_title：Photochemistry and photobiology

authors： Ghosh R,Guha D,Bhowmik S

更新日期：2012-05-01 00:00:00

abstract：:G protein-coupled receptors (GPCRs) are involved in the control of virtually all aspects of our behavior and physiology. Activated receptors catalyze nucleotide exchange in heterotrimeric G proteins (composed of alpha.GDP, beta and gamma subunits) on the inner surface of the cell membrane. The GPCR rhodopsin and the G...

journal_title：Photochemistry and photobiology

authors： Chen Y,Herrmann R,Fishkin N,Henklein P,Nakanishi K,Ernst OP

更新日期：2008-07-01 00:00:00

abstract：:Aminopyropheophorbide (APP) is a second generation of photosensitizer for photodynamic therapy (PDT). We demonstrated that APP strongly absorbed red light and, after being taken up by colon cancer cells (HCT-116 cells), was localized in cytoplasmic and internal membranes but not in mitochondria. The APP-mediated photo...

journal_title：Photochemistry and photobiology

authors： Matroule JY,Hellin AC,Morlière P,Fabiano AS,Santus R,Merville MP,Piette J

更新日期：1999-10-01 00:00:00

abstract：:The photoinduced covalent binding of the title compound to native and heat denatured DNA is described. The level of binding has been measured by UV (for DNA) and atomic absorption (for Rh) analysis. Quantum efficiencies of 6.4 x 10(-4) mol Rh per mol photons and 1.6 x 10(-3) mol Rh per mol photons have been determined...

journal_title：Photochemistry and photobiology

authors： Mahnken RE,Bina M,Deibel RM,Luebke K,Morrison H

更新日期：1989-04-01 00:00:00

abstract：:Haloarcula marismortui has been described to be nonmotile prior to the recent identification of flagellar filaments, suggesting the motile nature of H. marismortui. Here we observed the locomotion of freshly cultured H. marismortui cells and tracked the swimming trajectories via ImageJ. Trajectories of H. marismortui ...

journal_title：Photochemistry and photobiology

authors： Lin YC,Fu HY,Yang CS

更新日期：2010-09-01 00:00:00

abstract：:Photoproducts in double-stranded DNA induced by 193 nm radiation have been investigated. Double-stranded, supercoiled pBR322 DNA in buffered aqueous solution was exposed to varying fluences of 193 nm radiation from an ArF excimer laser. The quantum yields for formation of cyclobutylpyrimidine dimers, frank strand brea...

journal_title：Photochemistry and photobiology

authors： Kochevar IE,Buckley LA

更新日期：1990-05-01 00:00:00

abstract：:An important step in predicting the effects of future increases in UV radiation (UVR) is to evaluate the mechanisms that organisms use to prevent and repair DNA damage and determine how those mechanisms influence UVR sensitivity. Damage is prevented to varying degrees through photoprotection and repaired via two main ...

journal_title：Photochemistry and photobiology

authors： Olson MH,Mitchell DL

更新日期：2006-03-01 00:00:00

abstract：:The cellular uptake, localization and efflux of meso-tetra-(4-hydroxyphenyl)porphyrin (p-THPP)-loaded nanoparticles have been studied in EMT-6 tumor cells. The effect of blood serum on photocytotoxicity has also been evaluated. Sub-130 nm nanoparticles based on poly(D,L-lactide-co-glycolide) (PLGA) (50:50 PLGA and 75:...

journal_title：Photochemistry and photobiology

authors： Konan YN,Chevallier J,Gurny R,Allémann E

更新日期：2003-06-01 00:00:00

abstract：:The Photochemical Research Group from San Luis (Argentina) highlights the contributions of Dr. Norman Andino García to the development of the group as a way to show him our gratitude for all his support. ...

journal_title：Photochemistry and photobiology

authors： Ferrari G,Montaña MP

更新日期：2018-11-01 00:00:00

abstract：:The retina and retinal pigment epithelium contain a number of retinoids in a metabolic pathway that eventually forms the visual pigments. This study investigates the photochemistry of those retinoids that may contribute to light-induced damage to the retina. These include retinal (RAL), retinol (ROL), retinylpalmitate...

journal_title：Photochemistry and photobiology

authors： Dillon J,Gaillard ER,Bilski P,Chignell CF,Reszka KJ

更新日期：1996-05-01 00:00:00

abstract：:Photodynamic therapy (PDT) is frequently accompanied by induction of systemic immunosuppression. Photochemical mechanisms underlying this effect are not completely understood. Here, we demonstrate the immunosuppressive activity of photooxidation products of protoporphyrin IX dimethyl ester (PPIX) in a murine model of ...

journal_title：Photochemistry and photobiology

authors： Kyagova AA,Mansurova GV,Kozir LA,Ponomarev GV,Pavlov VY,Konstantinov IO,Potapenko AY

更新日期：2005-11-01 00:00:00

abstract：:We present an in vivo study of the optical properties of melanin present in melanocytic nevi of human subjects with Fitzpatrick skin type III (Caucasian descent) using optical spectroscopy. We show that the melanin absorption spectrum exhibits an exponential dependence on wavelength with a decay constant which follows...

journal_title：Photochemistry and photobiology

authors： Zonios G,Dimou A

更新日期：2009-01-01 00:00:00

abstract：:Elemental sulfur is a low-cost and abundant substance as one of the largest by-products of the oil industry which was widely used in many industrial activities. Cyclo-octasulfur (S8 ) is one of the sulfur allotropes that is a very stable substance in standard conditions. In this study, we report a low-cost and fast me...

journal_title：Photochemistry and photobiology

authors： Peyman VA,Azizian S

更新日期：2020-11-01 00:00:00