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Sensitization and photodynamic therapy (PDT) of gastrointestinal tumors with 5-aminolaevulinic acid (ALA) induced protoporphyrin IX (PPIX). A pilot study.

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5-Aminolaevulinic acid (ALA) is a promising agent for photodynamic therapy (PDT) sensitization as it can be given orally and only causes skin photosensitivity for 1-2 days. In fluorescence and photodynamic studies 26 patients with benign and malignant gastrointestinal tumors were given 30-60 mg ALA

Protoporphyrin IX fluorescence induced in basal cell carcinoma by oral delta-aminolevulinic acid.

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Limited depth of penetration significantly limits photodynamic therapy of nodular basal cell carcinoma (BCC) using topical delta (5)-aminolevulinic acid (ALA). To demonstrate safety and efficacy of orally administered ALA in inducing endogenous protoporphyrin IX (PpIX) production in BCC, 13 patients

Detection of female lower genital tract dysplasia using orally administered 5-aminolevulinic acid induced protoporphyrin IX: a preliminary study.

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OBJECTIVE Previous studies have suggested that 5-aminolevulinic acid (ALA) may be used topically on the cervix to allow optical detection of cervical dysplasia, based on the fluorescence of protoporphyrin IX (PpIX) synthesized in situ from ALA. However, the uniformity of distribution of topically

Photosensitisation and photodynamic therapy of oesophageal, duodenal, and colorectal tumours using 5 aminolaevulinic acid induced protoporphyrin IX--a pilot study.

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The first study of photodynamic therapy in the human gastrointestinal tract using 5 aminolaevulinic acid (ALA) induced protoporphyrin IX as the photosensitising agent is described. Eighteen patients with colorectal, duodenal, and oesophageal tumours were studied. After 30-60 mg/kg of ALA given

Erythropoietic protoporphyria with severe liver dysfunction and acute pancreatitis.

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A case of erythropoietic protoporphyria associated with severe hepatic dysfunction and acute pancreatitis is reported. The patient, a 33-year-old man, was admitted to our hospital complaining of upper abdominal pain, nausea, and vomiting of 3 days' duration. Laboratory tests on admission

Side effects and photosensitization of human tissues after aminolevulinic acid.

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Aminolevulinic acid (ALA) is being used as a "prodrug" for photodynamic therapy. The side effects of ALA have been only anecdotally reported and these effects as well as pharmacokinetics of the photosensitizing end product of ALA, protoporphyrin IX (PpIX), in patients undergoing operation are

Evidence for neurological dysfunction in end-stage protoporphyric liver disease.

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Protoporphyria is a genetic disorder characterized by a defect in the enzyme ferrochelatase, which catalyzes the chelation of iron to protoporphyrin. This causes excessive accumulation and excretion of protoporphyrin. The predominant clinical feature is photosensitivity. Progressive and fatal liver

[Acute porphyrias in differential diagnosis].

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The characteristic symptoms for acute porphyrias are caused by the inherited decreased activity of the enzymes of the heme biosynthesis pathway. Usually there is an exogenous or endogenous factor inhibiting the heme biosynthesis or increasing the consumption of heme produced in already decreased

[Evaluation of the effectiveness of gastro-protected proteoferrin in the therapy of sideropenic anemia in childhood].

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The clinical efficacy and tolerability of gastroprotected ferritin were assessed in children affected by iron deficiency and/or sideropenic anemia. Forty-seven children with iron-deficiency and/or sideropenic anemia were included in the study and were treated with gastroprotected ferritin at a dose

Hexaminolevulinate-induced fluorescence endoscopy in patients with rectal adenoma and cancer: a pilot study.

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BACKGROUND Fluorescence endoscopy is a promising new method for detection and treatment of premalignant and malignant lesions. The aim of this pilot study was to investigate the feasibility of hexaminolevulinate-based photodetection of rectal adenoma and cancer, including safety, dose finding, and

[Erythropoietic protoporphyria. A rare differential diagnosis among photosensitive diseases].

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A 31-year-old woman presented with recurrent swelling, burning, prickling and itching of the arms and the hands which appeared after UV exposure in the summer. Simultaneously she often had chills, malaise, nausea and circulatory problems lasting for hours. She did not have erythema or wheals. She

Santamarin, a sesquiterpene lactone isolated from Saussurea lappa, represses LPS-induced inflammatory responses via expression of heme oxygenase-1 in murine macrophage cells.

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Saussurea lappa C.B. Clarke (Compositae) is indigenous to India and Pakistan. The dried root of S. lappa has been traditionally used for alleviating pain in abdominal distention and tenesmus, indigestion with anorexia, dysentery, nausea, and vomiting. Santamarin is a sesquiterpene lactone isolated

5-Aminolevulinic acid photosensitization of dysplastic Barrett's esophagus: a pharmacokinetic study.

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Photodynamic therapy (PDT) using 5-aminolevulinic acid (ALA)-induced protoporphyrin IX (PpIX) may have a role in the treatment of dysplastic Barrett's esophagus. Before ALA-induced PDT can be used clinically, optimum treatment parameters must be established. In this study of 35 patients, the issues

Long-term observational study of afamelanotide in 115 patients with erythropoietic protoporphyria.

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BACKGROUND In erythropoietic protoporphyria (EPP), an inherited disease of porphyrin-biosynthesis, the accumulation of protoporphyrin in the skin causes severely painful phototoxic reactions. Symptom prevention was impossible until recently when afamelanotide became available. Afamelanotide-induced

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