Results 191 to 200 of about 30,373 (230)
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Photochemistry and Photobiology, 2000
5-aminolevulinic acid (5-ALA) and its ester derivatives are used in photodynamic therapy as precursors for the formation of photosensitizers. This study relates to the mechanisms by which 5-ALA is transported into cells. The transport of 5-ALA has been studied in a human adenocarcinoma cell line (WiDr) by means of [14C]-labeled 5-ALA.
E, Rud, O, Gederaas, A, Høgset, K, Berg
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5-aminolevulinic acid (5-ALA) and its ester derivatives are used in photodynamic therapy as precursors for the formation of photosensitizers. This study relates to the mechanisms by which 5-ALA is transported into cells. The transport of 5-ALA has been studied in a human adenocarcinoma cell line (WiDr) by means of [14C]-labeled 5-ALA.
E, Rud, O, Gederaas, A, Høgset, K, Berg
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Urinary 5-aminolevulinic acid in lead-exposed children
Biomarkers, 1999Lead intoxication can interfere with haem synthesis and alter the concentration of haem precursors, such as the neurotoxin 5-aminolevulinic acid, in plasma and urine. The relationship between blood lead concentration (PbB), a biomarker of lead exposure, and 5-aminolevulinic acid concentration in urine (ALAU), a biomarker of the early biological effect ...
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Production of 5-aminolevulinic acid by methanogens
Journal of Fermentation and Bioengineering, 1989Abstract The possibility of 5-aminolevulinic acid (ALA) accumulation in a culture medium was studied using Methanosarcina barkeri growing on a methanol minimal medium. To effect the accumulation of ALA in the culture medium, some ALA analogues were tested as inhibitors of ALA dehydratase.
Dong Lin, Naomichi Nishio, Shiro Nagai
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[Fluorescence cystoscopy using 5-aminolevulinic acid].
Casopis lekaru ceskych, 2003Fluorescence diagnosis has an increasing importance in different medical fields. In the presented paper, comparison of cystoscopy in white light with fluorescence cystoscopy after intravesical administration of 1 g of 5-aminolevulinic acid is presented.From the group of 63 persons examined, no difference between findings in white and blue light was ...
M, Jirsa +5 more
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Electrodialysis purification of 5-aminolevulinic acid hydrochloride
Russian Journal of Applied Chemistry, 2012The possibility of using electrodialysis for purifying 5-aminolevulinic acid hydrochloride from pollutants, ammonium chloride, formed in the course of synthesis was studied. Electrodialysis conditions: current density, linear velocity of a solution in desalting chambers, concentration of ammonium chloride and 5-aminolevulinic acid hydrochloride, were ...
A. A. Konarev, E. A. Luk’yanets
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Pleiotropic effects of 5-aminolevulinic acid in mouse brain
Biochemistry and Cell Biology, 20165-Aminolevulinic acid (ALA) seems to be responsible for the neuropsychiatric manifestations of acute intermittent porphyria (AIP). Our aim was to study the effect of ALA on the different metabolic pathways in the mouse brain to enhance our knowledge about the action of this heme precursor on the central nervous system. Heme metabolism, the cholinergic
Jimena, Lavandera +8 more
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5-Aminolevulinic Acid Fluorescence Imaging System
2023Tsutomu Namikawa, Kazuhiro Hanazaki
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[5-Aminolevulinic acid esters based photodynamic therapy].
Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi, 2015As exogenous ALA (5-aminolevulinic acid) esters can induce the production and accumulation of endogenous photosensitizer PpIX (protoporphyrin IX) in tumor tissues more effectively, they have been the most active photosensitizer prodrug in PDT(photodynamic therapy) field.
Sujuan, Zhang +2 more
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