prostaglandin-f-main-urinary-metabolite and Psoriasis

The influence of ultraviolet B (UVB) irradiation on the excretion of the main urinary metabolite of prostaglandin F1 alpha and F2 alpha (PGF-MUM) in 7 normal male volunteers and 7 male patients with stable psoriasis was examined. The excretion of PGF-MUM was increased during the first 24 hours after UVB irradiation of back skin and was generally reduced to near pre-irradiation levels during the next 24 hours after irradiation, in both normal and psoriatic subjects. Although pre-irradiation levels of PGF-MUM excretion in psoriatic patients were lower than those in normal subjects as previously reported, it was demonstrated that PGF-MUM excretion after UVB irradiation in psoriatic patients was fairly increased and amounted to near the mean pre-irradiation level in normal subjects. These results suggested not only a disorder in endogenous prostaglandin synthesis in psoriatic patients but a considerable capacity of psoriatic skin to synthesize prostaglandin after UVB irradiation.

Topics: Adult; Aged; Fatty Acids; Humans; Male; Middle Aged; Prostaglandins F; Prostanoic Acids; Psoriasis; Ultraviolet Therapy

Twenty-four hour excretion of main urinary metabolite of prostaglandin F1 alpha and F2 alpha (PGF-MUM) in 18 patients with stable psoriasis (9 males and 9 females) and 18 almost age-matched healthy subjects (9 males and 9 females) was examined. The mean excretion level of PGF-MUM in male psoriatic patients (15.2 +/- 4.0 micrograms/day) was significantly lower than that in male healthy subjects (22.8 +/- 3.3 micrograms/day) (p less than 0.01). A similar tendency was observed between female psoriatic patients (10.6 +/- 3.0 micrograms/day) and female healthy subjects (13.3 +/- 2.4 micrograms/day) although the difference in the excretion level was not so remarkable (p = 0.05) compared with male subjects. These results suggest an altered endogenous prostaglandin synthesis in psoriatic patients.

Topics: Adolescent; Adult; Child; Dinoprost; Fatty Acids; Female; Humans; Male; Middle Aged; Prostaglandins F; Prostanoic Acids; Psoriasis; Radioimmunoassay

Topics: Adolescent; Adult; Fatty Acids; Female; Humans; Male; Middle Aged; Photochemotherapy; Prostaglandins F; Prostanoic Acids; Psoriasis; PUVA Therapy