Methyl aminolevulinate - CAS 33320-16-0
Catalog number: 33320-16-0
Category: Inhibitor
Not Intended for Therapeutic Use. For research use only.
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Methyl aminolevulinate. : Metvix.
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1.Aminolevulinic Acid Photodynamic Therapy in the Treatment of Erosive Pustular Dermatosis of the Scalp: A Case Series.
Yang CS1, Kuhn H1, Cohen LM2, Kroumpouzos G3. JAMA Dermatol. 2016 Mar 7. doi: 10.1001/jamadermatol.2015.6300. [Epub ahead of print]
Importance: Erosive pustular dermatosis of the scalp (EPDS) is an inflammatory skin condition that develops on sun-damaged skin in older individuals. Patients with EPDS present a therapeutic challenge because medical treatments and surgical modalities have met with limited success. Methyl aminolevulinate photodynamic therapy has been effective in 1 case but induced the disease in others.
2.[Procedure for daylight methyl aminolevulinate photodynamic therapy to treat actinic keratoses].
Girard C1, Adamski H2, Basset-Séguin N3, Beaulieu P4, Dreno B5, Riboulet JL6, Lacour JP7. Ann Dermatol Venereol. 2016 Apr;143(4):257-63. doi: 10.1016/j.annder.2016.02.016. Epub 2016 Mar 22.
Actinic keratosis (AK), also known as solar keratosis or pre-cancerous keratosis, is frequently observed in areas of skin exposed to sunlight, particularly in light-skinned patients. In France, photodynamic therapy using red light (conventional PDT) and methylamino 5-levulinate (MAL) is indicated in the treatment of thin or non-hyperkeratotic and non-pigmented multiple AK lesions or large zones covered with AK lesions. It is well-known for its efficacy but also for its side effects, especially pain during illumination, which can limit its use. An alternative to PDT using natural daylight has recently been proposed to treat actinic keratosis lesions, and results in greater flexibility as well as significant reduction in pain. The lesions are prepared as for conventional PDT, with MAL cream being applied by the physician or the patient, after which they are exposed to natural daylight for 2hours. The lesions are then gently cleansed and protected from natural light for 24hours.
3.A Strategy Using Photodynamic Therapy and Clofibric Acid to Treat Peritoneal Dissemination of Ovarian Cancer.
Yokoyama Y1, Shigeto T, Miura R, Kobayashi A, Mizunuma M, Yamauchi A, Futagami M, Mizunuma H. Asian Pac J Cancer Prev. 2016;17(2):775-9.
BACKGROUND: The current study examined the effectiveness of concurrent therapy using photodynamic therapy (PDT) and clofibric acid (CA) to treat peritoneal carcinomatosis resulting from ovarian cancer.
4.Photodynamic inactivation of Klebsiella pneumoniae biofilms and planktonic cells by 5-aminolevulinic acid and 5-aminolevulinic acid methyl ester.
Liu C1, Zhou Y2, Wang L2, Han L1, Lei J1,2, Ishaq HM1, Nair SP3, Xu J4. Lasers Med Sci. 2016 Apr;31(3):557-65. doi: 10.1007/s10103-016-1891-1. Epub 2016 Feb 17.
The treatment of Klebsiella pneumoniae, particularly extended-spectrum β-lactamase (ESBL)-producing K. pneumoniae, is currently a great challenge. Photodynamic antimicrobial chemotherapy is a promising approach for killing antibiotic-resistant bacteria. The aim of this study was to evaluate the capacity of 5-aminolevulinic acid (5-ALA) and its derivative 5-ALA methyl ester (MAL) in the presence of white light to cause photodynamic inactivation (PDI) of K. pneumoniae planktonic and biofilm cells. In the presence of white light, 5-ALA and MAL inactivated planktonic cells in a concentration-dependent manner. Biofilms were also sensitive to 5-ALA and MAL-mediated PDI. The mechanisms by which 5-ALA and MAL caused PDI of ESBL-producing K. pneumonia were also investigated. Exposure of K. pneumonia to light in the presence of either 5-ALA or MAL induced cleavage of genomic DNA and the rapid release of intracellular biopolymers. Intensely denatured cytoplasmic contents and aggregated ribosomes were also detected by transmission electron microscopy.
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CAS 33320-16-0 Methyl aminolevulinate

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