aminolevulinic acid/hemorrhage

One of the most promising substances used in photodynamic therapy (PDT) is 5-aminolevulinic acid (ALA), which induces endogenous synthesis and accumulation of porphyrins in malignant cells. In this paper we have shown that both topical and intratumoral administration of ALA in a subcutaneously

OBJECTIVE To evaluate feasibility and functional effects of photodynamic endometrial ablation (PEA) in patients. METHODS A total of 15 PEAs has been performed in 11 patients using topically applied 5-aminolevulinic acid (ALA) solutions and a balloon-light diffuser (160 J/cm(2), 635 nm). Uterine

BACKGROUND The objective of our study was to determine therapeutic response to photodynamic therapy (PDT) and adverse reaction of PDT in 126 patients with 141 lesions: 36 patients with 41 lesions of superficial basal cell carcinoma (BCC), 35 patients with nodular BCC, 42 patients with ulcerated BCC,

BACKGROUND 5-Aminolevulinic acid (5-ALA) is used for brain tumor identification during surgery through fluorescence. Its use is linked to side effects such as photodermatosis, anemia, or plaquetopenia. Many institutions take very strict precautions to prevent them. Our hospital's protocol mandates

OBJECTIVE The impact of photodynamic therapy (PDT) on the endometrium following topical application of 5-aminolevulinic acid (ALA) was studied in a rat model. Study Design/ METHODS Fluorescence microscopy revealed peak ALA to protoporphyrin IX (Pp IX) conversion 3-6 hours after application.

BACKGROUND Frameless stereotactic biopsies are replacing frame-based stereotaxy as a diagnostic approach to brain lesions. In order to avoid a sampling bias or negative histology, multiple specimens are often taken. This in turn increases the risk of hemorrhagic complications. OBJECTIVE We present

The measurement of erythrocyte delta-aminolevulinic acid dehydratase (ALA-D) activity has been found to be a useful guide to lead exposure for screening purposes. The pH of the test should be well-controlled for adequate clinical interpretation. False-normal tests are rare even with iron-deficiency

The present study aimed to evaluate the efficacy of photodynamic therapy with topical applied 5-aminolevulinic acid (ALA-PDT) for the treatment of cervical condylomata accuminate (CA). 161 Patients with cervical CA were randomly divided into ALA-PDT group and CO2 laser (control) group. Patients

Psoriasis, an inflammatory skin disease, exhibits recurring itching, soreness, and cracked and bleeding skin. Currently, the topical delivery of 5-aminolevulinic acid-photodynamic therapy (ALA-PDT) is an optional treatment for psoriasis which provides long-term therapeutic effects, is non-toxic and

BACKGROUND Photodynamic therapy (PDT) for cancer patients has developed into an important new clinical treatment modality in the past 25-years. PDT involves administration of a tumor-localizing photosensitizer or photosensitizer prodrug (5-aminolevulinic acid [ALA], a precursor in the heme

BACKGROUND Psoriasis lesions accumulate protoporphyrin IX (PpIX) with a variable distribution within plaques due to variations in hyperkeratosis causing differences in penetration of cream or light. OBJECTIVE To study the effects of different keratolytic pretreatments in PpIX-induced fluorescence

Rapeseed meal, the residue after oil extraction, is an animal feed of great commercial interest. Some genetic strains of rapeseed yield a meal which when fed in high concentration produces hemorrhagic lesions in the liver of chickens. These lesions are reduced in incidence by the simultaneous

Fluorescence-guided surgery (FGS) has been established as a powerful technique for glioblastoma resection. After oral application of the prodrug 5-aminolevulinic acid (5-ALA), protoporphyrin IX (PpIX) is formed as an intermediate of the heme-biosynthesis cascade and accumulates within the tumor. By

Lead was administered to male and female rats in drinking water for 3 and 6 weeks at the following doses: 0, 10, 100, 1000, 5000 ppm and for 6 months at 10 ppm only. Various parameters of blood - lead concentration (Pb-B), hematocrit (Htc), hemoglobin (Hb), free erythrocyte porphyrins (FEB),