aminolevulinic acid/necrosis

delta-Aminolevulinic acid (ALA) causes cells to accumulate protoporphyrin IX (Proto) and heme. Exposure to light in vitro causes intracellular Proto to initiate formation of singlet oxygen molecules, leading to self-destruction. This photoactivated destruction by ALA in vitro is enhanced by addition

A number of papers have described high levels of 5-aminolevulinic acid in cases of heart damage due to acute myocardial infarction, acute intermittent porphyria or chronic kidney failure, but it is not known whether the heart damage is directly associated with 5-aminolevulinic acid. The aim of this

This study utilized two breast cancer cell lines differing only in their expression of heat shock protein 27 (hsp27). The DB46 cell line was engineered to express high constitutive levels of hsp27, while the DC4 cell line expresses normal low levels of hsp27. The cells were incubated in 1 mM

Photodynamic therapy (PDT) is a relatively new approach to the treatment of neoplasms which involves the use of photoactivatable compounds to selectively destroy tumors. 5-Aminolevulinic acid (ALA) is an endogenous substance which is converted to protoporphyrin IX (PpIX) in the synthetic pathway to

OBJECTIVE To determine the intracellular proteome of normal human chondrocytes stimulated with interleukin-1beta (IL-1beta) and tumor necrosis factor alpha (TNFalpha) and to ascertain differences in the protein expression patterns of these 2 cytokines. METHODS Normal human knee cartilage

BACKGROUND For appropriate use of available intraoperative imaging techniques in glioblastoma (GB) surgery, it is crucial to know the potential of the respective techniques in tumor detection. OBJECTIVE To assess histopathological basis of imaging results of intraoperative magnetic resonance imaging

OBJECTIVE Based on the observation that increasing skin temperature could improve 5-aminolevulinic acid (ALA) penetration and accumulation of protoporphyrin IX (PpIX) in the ALA-based photodynamic therapy (PDT), this study was designed to investigate how temperature change varied the therapeutic

5-Aminolevulinic acid (ALA) is an attractive photosensitizing agent for photodynamic therapy (PDT) as its photoactive derivative, protoporphyrin IX, is metabolized within 1-2 days, eliminating prolonged skin photosensitivity. However, at the maximum dose patients can tolerate by mouth, 60 mg/kg,

OBJECTIVE The aim of the study was to determine photodynamic effects in chemically induced rat bladder tumors after intravesical instillations of 5-aminolevulinic acid (5-ALA) and PDT-dependence on laser wavelength and light dose. METHODS Following intravesical instillation of a 5-ALA solution (40

BACKGROUND The photodynamic therapy using 5-aminolevulinic acid is one of the new therapeutic modalities for malignant glioma yet. There has been a controversy as to the mechanism of cell damage in acute phase induced by 5-ALA-mediated PDT. In this study, acute morphological and histological

We present results of preliminary studies on 5-aminolevulinic acid (5-ALA)-photodynamic therapy (PDT). In order to assess the effectiveness of 5-ALA-PDT we have used BALB/c mice transplanted subcutaneously with mouse colon adenocarcinoma C51. 5-ALA in the dose of 50 mg/kg was given intraperitoneally

This paper focuses on the molecular mechanism of deregulated porphyrin biosynthesis in rice plants under photodynamic stress imposed by an exogenous supply of 5-aminolevulinic acid (ALA) and oxyfluorfen (OF). Plants treated with 5 mM ALA or 50 µM OF exhibited differential herbicidal symptoms as

This study focuses on differential molecular mechanisms of antioxidant and detoxification systems in rice plants under two different types of photodynamic stress imposed by porphyrin deregulators, 5-aminolevulinic acid (ALA) and oxyfluorfen (OF). The ALA-treated plants with white necrosis exhibited

δ-aminolevulinic acid dehydratase (ALAD) is an important enzyme in tetrapyrrole synthesis. ALAD combines two δ-aminolevulinic acid (δ-ALA) molecules to form the pyrrole molecule, porphobilinogen, an important precursor for plant pigments involved in photosynthesis, respiration,

OBJECTIVE The aim of this study was to make 5-aminolevulinic acid (5-ALA)-incorporated nanoparticles using methoxy polyethylene glycol/chitosan (PEG-Chito) copolymer for application in photodynamic therapy for colon cancer cells. METHODS 5-ALA-incorporated (PEG-Chito-5-ALA) nanoparticles were