2003
DOI: 10.1097/01.ju.0000075054.38441.2d
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Comparison of Aminolevulinic Acid and Hexylester Aminolevulinate Induced Protoporphyrin IX Distribution in Human Bladder Cancer

Abstract: HAL is an excellent precursor for PpIX synthesis in bladder cancer. With the 2+2 hour topical administration condition it yielded the highest PpIX fluorescence intensity and fluorescence contrast between normal and malignant urothelial cells. This approach allows us to optimize PpIX tissue distribution for photodynamic therapy in superficial bladder cancer.

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Cited by 118 publications
(56 citation statements)
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References 19 publications
(19 reference statements)
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“…The latter is a derivate of 5-ALA and seems to be superior in use in that it needs a shorter instillation time, is more stable in white light, has a better fluorescence intensity and has a more homogeneous enhancement and distribution in photoactive porphyrins [Jichlinski et al 1997;Marti et al 2003]. After instillation, the drug is actively transported into the urothelial cytoplasm and incorporated in the conventional cellular hem-biosynthesis metabolism.…”
Section: Photodynamic Diagnosis: the Techniquementioning
confidence: 99%
“…The latter is a derivate of 5-ALA and seems to be superior in use in that it needs a shorter instillation time, is more stable in white light, has a better fluorescence intensity and has a more homogeneous enhancement and distribution in photoactive porphyrins [Jichlinski et al 1997;Marti et al 2003]. After instillation, the drug is actively transported into the urothelial cytoplasm and incorporated in the conventional cellular hem-biosynthesis metabolism.…”
Section: Photodynamic Diagnosis: the Techniquementioning
confidence: 99%
“…Diğer taraftan FDT için ABD'de onay almış olan tek ajan HAL'dır. HAL'ın lokal biyo-uyumluluk, daha iyi stabilize olma, floresans yoğunluğunu arttırabilme ve daha homojen PpIX tutulumu ve dağılımı sağlama gibi özelliklerinin 5-ALA'den daha iyi olduğu bildirilmektedir (23). Bu iki ajanın duyarlılık ve özgüllüklerinin hastalığın tanısında benzer olduğu yayınlanmıştır (20).…”
Section: İncelenen Meta-analizlerin Tanımlanmasıunclassified
“…La fluorescencia consiste en la obtención de una respuesta lumínica característica por parte de un tejido cuando este es iluminado por un haz de luz de una determinada longitud de onda. La fluorescencia puede ser autofluorescencia, cuando esta se produce por sustancias propias del tejido, o fluorescencia exógena, cuando la fluorescencia es inducida por un compuesto extraño al organismo, como es al caso que nos ocupa 4,5 .…”
Section: Fundamentos Físicos Y Biológicos Del Diagnóstico Fotodinámicounclassified