Results 21 to 30 of about 13,239 (184)

An in vitro study of the effect of 5-ALA-mediated photodynamic therapy on oral squamous cell carcinoma

open access: yesBMC Oral Health, 2020
Background The primary aim of this study was to observe the effect of 5-ALA-mediated photodynamic therapy on oral squamous cell carcinoma in vitro. Methods SCC25 cells were divided into the observation group and the blank control group.
Ying Ma   +4 more
doaj   +1 more source

Protoporphyrin IX photodynamic therapy for synovitis [PDF]

open access: yesArthritis & Rheumatism, 2002
AbstractObjectiveTo determine the conditions for synovial accumulation of protoporphyrin IX (PpIX) and photodynamic therapy (PDT)–induced synovial cytotoxicity in vitro and in vivo.MethodsSynovial tissues were obtained from mice with antigen‐induced arthritis (AIA) and incubated with different concentrations of 5‐aminolevulinic acid hexyl ester (h‐ALA),
Kirdaite, G.   +5 more
openaire   +3 more sources

Molecular Dynamics of Cobalt Protoporphyrin Antagonism of the Cancer Suppressor REV-ERBβ

open access: yesMolecules, 2021
Nuclear receptor REV-ERBβ is an overexpressed oncoprotein that has been used as a target for cancer treatment. The metal-complex nature of its ligand, iron protoporphyrin IX (Heme), enables the REV-ERBβ to be used for multiple therapeutic modalities as a
Taufik Muhammad Fakih   +4 more
doaj   +1 more source

Fluorescence‐based discrimination of breast cancer cells by direct exposure to 5‐aminolevulinic acid

open access: yesCancer Medicine, 2019
Protoporphyrin IX‐fluorescence measurement is a powerful in situ approach for cancer detection after oral/topical administration of 5‐aminolevulinic acid.
Midori Morita   +8 more
doaj   +1 more source

Synthesis of Two Compounds with Self-Assembled Monolayer Properties: Riboflavin 2', 3', 4' , 5' Tetra Octadecanoate & Bis (Phosphatidyl Ethanol) Protoporphyrin IX Amide [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2011
Riboflavin and protoporphyrin IX are two molecules that participate in oxidation and reduction reactions in the living cell. Changing some functional groups of riboflavin and protoporphyrin IX can provide compounds with self-assembled monolayer ...
Mohammad Mirzaei Salehabady   +4 more
doaj  

Antimicrobial Photodynamic Therapy in the Control of COVID-19

open access: yesAntibiotics, 2020
Antimicrobial photodynamic therapy (aPDT), using well known, safe and cost-effective photosensitizers, such as phenothiazines, e.g., methylene blue (MB), or porphyrins, e.g., protoporphyrin-IX (PP-IX), might help to mitigate the COVID-19 either to ...
Adelaide Almeida   +2 more
doaj   +1 more source

Protoporphyrin IX: the Good, the Bad, and the Ugly [PDF]

open access: yesThe Journal of Pharmacology and Experimental Therapeutics, 2016
Protoporphyrin IX (PPIX) is ubiquitously present in all living cells in small amounts as a precursor of heme. PPIX has some biologic functions of its own, and PPIX-based strategies have been used for cancer diagnosis and treatment (the good). PPIX serves as the substrate for ferrochelatase, the final enzyme in heme biosynthesis, and its homeostasis is ...
Madhav, Sachar   +2 more
openaire   +2 more sources

Inactivation of Dengue and Yellow Fever viruses by heme, cobalt-protoporphyrin IX and tin-protoporphyrin IX [PDF]

open access: yesJournal of Applied Microbiology, 2016
To investigate the effect of heme, cobalt-protoporphyrin IX and tin-protoporphyrin IX (CoPPIX and SnPPIX), macrocyclic structures composed by a tetrapyrrole ring with a central metallic ion, on Dengue Virus (DENV) and Yellow Fever Virus (YFV) infection.Treatment of HepG2 cells with heme, CoPPIX and SnPPIX after DENV infection reduced infectious ...
I, Assunção-Miranda   +8 more
openaire   +2 more sources

Butafenacil: A positive control for identifying anemia- and variegate porphyria-inducing chemicals

open access: yesToxicology Reports, 2015
Butafenacil is an herbicide that inhibits protoporphyrinogen oxidase (PPOX), an enzyme that catalyzes oxidation of protoporphyrinogen IX to protoporphyrin IX during chlorophyll and heme biosynthesis.
Jessica K. Leet   +2 more
doaj   +1 more source

Heme mediates cytotoxicity from artemisinin and serves as a general anti-proliferation target. [PDF]

open access: yesPLoS ONE, 2009
Heme (Fe2+ protoporphyrin IX) is an essential molecule that has been implicated the potent antimalarial action of artemisinin and its derivatives, although the source and nature of the heme remain controversial.
Shiming Zhang, Glenn S Gerhard
doaj   +1 more source

Home - About - Disclaimer - Privacy