Effects of antipsoriatic therapies on hepatic microsomal enzyme activity in patients with psoriasis. 1998

N H Brockmeyer, and S Frühauf, and L Mertins, and B Barthel, and M Goos
Department of Dermatology, Ruhr-University Bochum, St. Josef-Hospital, Gudrunstr. 56, D-44791 Bochum, Germany. n.brockmeyer@derma.de

OBJECTIVE The influence of several antipsoriatic therapies on microsomal enzyme activity was assessed by comparing measurements of antipyrine kinetics prior to and two weeks after initiation of therapy. METHODS Serum and urine analysis was carried out by means of high performance liquid chromatography (HPLC). Each form of therapy was examined separately. 10 patients were treated with etretinate. The groups treated with 8-methoxypsoralene (8-MOP) in combination with UVA irradiation (PUVA), etretinate in combination with PUVA (RePUVA), anthralin, or combined UVA and UVB irradiation (SUP) consisted of 7 patients each. RESULTS Neither anthralin nor SUP therapy led to any significant changes in antipyrine kinetics. Antipyrine clearance under the other regimens was, however, reduced. It was 23% lower in PUVA-treated patients, 20% lower in those receiving retinoids and 28% lower in those under RePUVA (p<0.05 - 0. 01). CONCLUSIONS PUVA, etretinate and RePUVA inhibit microsomal enzyme activity in the liver. Possible drug interactions with other P subset450 inducing or inhibiting agents should be considered in the therapy of psoriatic patients.

UI MeSH Term Description Entries
D007641 Keratolytic Agents Agents that soften, separate, and cause desquamation of the cornified epithelium or horny layer of skin. They are used to expose mycelia of infecting fungi or to treat corns, warts, and certain other skin diseases. Desquamating Agents,Skin-Peeling Agents,Agents, Desquamating,Agents, Keratolytic,Agents, Skin-Peeling,Skin Peeling Agents
D008657 Metabolic Clearance Rate Volume of biological fluid completely cleared of drug metabolites as measured in unit time. Elimination occurs as a result of metabolic processes in the kidney, liver, saliva, sweat, intestine, heart, brain, or other site. Total Body Clearance Rate,Clearance Rate, Metabolic,Clearance Rates, Metabolic,Metabolic Clearance Rates,Rate, Metabolic Clearance,Rates, Metabolic Clearance
D008730 Methoxsalen A naturally occurring furocoumarin compound found in several species of plants, including Psoralea corylifolia. It is a photoactive substance that forms DNA ADDUCTS in the presence of ultraviolet A irradiation. 8-Methoxypsoralen,Ammoidin,Xanthotoxin,8-MOP,Deltasoralen,Dermox,Geroxalen,Meladinina,Meladinine,Meloxine,Methoxa-Dome,Méladinine,Oxsoralen,Oxsoralen-Ultra,Puvalen,Ultramop,8 MOP,8 Methoxypsoralen,8MOP,Methoxa Dome,Oxsoralen Ultra
D008862 Microsomes, Liver Closed vesicles of fragmented endoplasmic reticulum created when liver cells or tissue are disrupted by homogenization. They may be smooth or rough. Liver Microsomes,Liver Microsome,Microsome, Liver
D011565 Psoriasis A common genetically determined, chronic, inflammatory skin disease characterized by rounded erythematous, dry, scaling patches. The lesions have a predilection for nails, scalp, genitalia, extensor surfaces, and the lumbosacral region. Accelerated epidermopoiesis is considered to be the fundamental pathologic feature in psoriasis. Palmoplantaris Pustulosis,Pustular Psoriasis of Palms and Soles,Pustulosis Palmaris et Plantaris,Pustulosis of Palms and Soles,Psoriases
D011701 PUVA Therapy Photochemotherapy using PSORALENS as the photosensitizing agent and ultraviolet light type A (UVA). Psoralen Ultraviolet A Therapy,Therapy, PUVA,PUVA Therapies,Therapies, PUVA
D004347 Drug Interactions The action of a drug that may affect the activity, metabolism, or toxicity of another drug. Drug Interaction,Interaction, Drug,Interactions, Drug
D005050 Etretinate An oral retinoid used in the treatment of keratotic genodermatosis, lichen planus, and psoriasis. Beneficial effects have also been claimed in the prophylaxis of epithelial neoplasia. The compound may be teratogenic. B10-9359,Ethyl Etrinoate,Ro 10-9359,Ro-10-9359,Tigason,Tigazon,B10 9359,B109359,Etrinoate, Ethyl,Ro 10 9359,Ro 109359,Ro109359
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000287 Administration, Topical The application of drug preparations to the surfaces of the body, especially the skin (ADMINISTRATION, CUTANEOUS) or mucous membranes. This method of treatment is used to avoid systemic side effects when high doses are required at a localized area or as an alternative systemic administration route, to avoid hepatic processing for example. Drug Administration, Topical,Administration, Topical Drug,Topical Administration,Topical Drug Administration,Administrations, Topical,Administrations, Topical Drug,Drug Administrations, Topical,Topical Administrations,Topical Drug Administrations

Related Publications

N H Brockmeyer, and S Frühauf, and L Mertins, and B Barthel, and M Goos
July 1985, Bulletin of environmental contamination and toxicology,
N H Brockmeyer, and S Frühauf, and L Mertins, and B Barthel, and M Goos
December 1992, Journal of applied toxicology : JAT,
N H Brockmeyer, and S Frühauf, and L Mertins, and B Barthel, and M Goos
June 1990, Clinical pharmacology and therapeutics,
N H Brockmeyer, and S Frühauf, and L Mertins, and B Barthel, and M Goos
January 1988, European journal of clinical pharmacology,
N H Brockmeyer, and S Frühauf, and L Mertins, and B Barthel, and M Goos
September 1976, Biochemical pharmacology,
N H Brockmeyer, and S Frühauf, and L Mertins, and B Barthel, and M Goos
January 1983, General pharmacology,
N H Brockmeyer, and S Frühauf, and L Mertins, and B Barthel, and M Goos
August 1978, Clinical biochemistry,
N H Brockmeyer, and S Frühauf, and L Mertins, and B Barthel, and M Goos
September 1974, Biochemical pharmacology,
N H Brockmeyer, and S Frühauf, and L Mertins, and B Barthel, and M Goos
September 1990, International journal of dermatology,
N H Brockmeyer, and S Frühauf, and L Mertins, and B Barthel, and M Goos
February 1979, Life sciences,
Copied contents to your clipboard!