methoxsalen/neoplasms

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Incidence of skin cancer in Japanese psoriatic patients treated with either methoxsalen phototherapy, Goeckerman regimen, or both therapies. A 10-year follow-up study.

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To determine the long-term cutaneous side effects of methoxsalen phototherapy (PUVA) and Goeckerman regimen, a total of 151 Japanese psoriatic patients treated with PUVA, Goeckerman regimen, or both therapies in our department from 1976 to 1986 were evaluated for skin cancers. Sixty-seven patients

Cancer incidence among Finnish patients with psoriasis treated with trioxsalen bath PUVA.

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BACKGROUND Systemic methoxsalen PUVA increases nonmelanoma skin cancer risk in a dose-dependent manner, whereas trioxsalen bath PUVA treatment has been suggested to be less carcinogenic. OBJECTIVE Our purpose was to study the carcinogenicity of topical trioxsalen PUVA. METHODS We performed a record

Phase II trial of SM-88, a cancer metabolism based therapy, in non-metastatic biochemical recurrent prostate cancer

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Background Androgen deprivation therapy (ADT) is a standard treatment for high-risk biochemically-recurrent, non-metastatic prostate cancer (BRPC) but is not curative and associated with toxicity. Racemetyrosine (SM-88) is an amino-acid analogue used with methoxsalen, phenytoin, and sirolimus (MPS)

Protective Effects of Methoxsalen Supplementation on Chronic Alcohol-Induced Osteopenia and Steatosis in Rats.

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Osteopenia or osteoporosis occurs frequently in alcoholics and patients with alcoholic fatty liver disease. Methoxsalen (MTS), 8-methoxypsoralen, improved osteoporosis in ovariectomized and diabetic mouse models; however, its effects on alcohol-induced osteopenia and steatosis have not been

Structures of human microsomal cytochrome P450 2A6 complexed with coumarin and methoxsalen.

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Human microsomal cytochrome P450 2A6 (CYP2A6) contributes extensively to nicotine detoxication but also activates tobacco-specific procarcinogens to mutagenic products. The CYP2A6 structure shows a compact, hydrophobic active site with one hydrogen bond donor, Asn297, that orients coumarin for

Effects of methoxsalen from Poncirus trifoliata on acetylcholinesterase and trimethyltin-induced learning and memory impairment.

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Previously, we identified methoxsalen (8-methoxy-2',3',6,7-furocoumarin) as the bioactive compound probably responsible for acetylcholinesterase (AchE) inhibition achieved by feeding crude extract of Poncirus trifoliate. To confirm the activity of methoxsalen, Institute of Cancer Research (ICR) mice

Structure, function, regulation and polymorphism of human cytochrome P450 2A6.

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The CYP2A6 gene spans a region of approximately 6 kb pairs consisting of 9 exons and has been mapped to the long arm of chromosome 19 (between 19q12 and 19q13.2). The CYP2A6 protein has 494 amino acids and is an important hepatic Phase I enzyme that metabolizes approximately 3% of therapeutic drugs

The carcinogenic properties of topical PUVA. A lifelong study in mice.

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The tumorigenic properties of topical methoxsalen (8-MOP) and trioxsalen (TMP) plus ultraviolet light A (UVA) were studied in NMRI female mice. The animals were treated three times weekly for 9 months, and followed up for 18 months. Acetonic solutions of TMP (0.1 mg in 0.2 ml) and 8-MOP (0.6 mg in

Extracorporeal photophoresis: an evidence-based analysis.

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OBJECTIVE To assess the effectiveness, safety and cost-effectiveness of extracorporeal photophoresis (ECP) for the treatment of refractory erythrodermic cutaneous T cell lymphoma (CTCL) and refractory chronic graft versus host disease (cGvHD). BACKGROUND CUTANEOUS T CELL LYMPHOMA: Cutaneous T cell

Cutaneous hypermelanosis and intramelanotic lipid droplets.

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Intramelanocytic lipid droplets have been observed in 12 patients with different types of hypermelanosis of the skin. These include drug-induced hypermelanosis, hypermelanosis secondary to use of physical agents, hypermelanotic morphea, generalized scleroderma with diffuse hypermelanosis, a

Toxicology and Carcinogenesis Studies of 8-Methoxypsoralen (CAS No. 298-81-7) in F344/N Rats (Gavage Studies).

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Oral administration of 8-methoxypsoralen followed by exposure to longwave ultraviolet light (primarily ultraviolet A, 320-400 nm) is used in the treatment of vitiligo and psoriasis. 8-Methoxypsoralen also occurs naturally in a variety of vegetables. Toxicology and carcinogenesis studies of

Botanicals in dermatology: an evidence-based review.

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Botanical extracts and single compounds are increasingly used in cosmetics but also in over-the-counter drugs and food supplements. The focus of the present review is on controlled clinical trials with botanicals in the treatment of acne, inflammatory skin diseases, skin infections, UV-induced skin

Extracorporeal photopheresis (ECP) in patients with steroid-dependent Crohn's disease: an open-label, multicenter, prospective trial.

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BACKGROUND Extracorporeal photopheresis (ECP) involves ex vivo leukocyte treatment with methoxsalen and UVA light to generate a tolerogenic response. A previous trial demonstrated that ECP permits corticosteroid withdrawal in steroid-dependent Crohn's disease (CD) patients who were in clinical

Assessment of Antihyperlipidemic and Antitumor Effect of Isolated Active Phytoconstituents from Apium graveolens L. through Bioassay-Guided Procedures.

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The seeds of A. graveolens yielded coumarin derivatives such as seselin, methoxsalen, and 3H-isobenzofuran-1-one through chromatographic separation techniques. The structure of the components has been established on the basis of spectral data analysis. The present study was undertaken to explore the

Psoralen photobiology and photochemotherapy: 50 years of science and medicine.

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In 1998 it is appropriate to commemorate the 50th anniversary of el Mofty's use of purified 8-methoxypsoralen (8-MOP) in the treatment of vitiligo (el Mofty AM. A preliminary clinical report on the treatment of leukoderma with Ammi majus linn. J R Egypt Med Assn 1948,31:651 65. el Mofty AM, el

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