A Stable Prostacyclin Analogue Reduces High Serum TNF-α Levels in Diabetic Patients

Autor: Kentaro Fujiwara, Nobuki Hayakawa, Atsushi Suzuki, Keiko Yamamoto, Y Sawai, Naohisa Oda, Mutsuko Nagata, Akio Nagasaka, Shigeo Imamura, Mitsuyasu Itoh
Rok vydání: 2004
Předmět:
Zdroj: Experimental and Clinical Endocrinology & Diabetes. 112:390-394
ISSN: 1439-3646
0947-7349
DOI: 10.1055/s-2004-821024
Popis: AIMS To confirm whether a prostacyclin (prostaglandin I (2)) affects the increased TNF-alpha concentration in sera of diabetic patients, we measured serum TNF-alpha concentration and treated these patients with oral administration of the stable prostacyclin analogue (Beraprost). Twelve of 20 type II diabetic patients were investigated for follow up-study and 6 of those patients were for therapy with Beraprost for diabetic neuropathy. SUBJECTS AND METHODS Serum TNF-alpha concentration was quantified by EASIA using monoclonal antibodies directed against distinct epitopes of TNF-alpha. RESULTS In diabetic patients, serum TNF-alpha concentration was significantly increased compared with that of healthy subjects. The augmented TNF-alpha concentration in these patients was not decreased by diabetic control using antihyperglycemic agents for 8 weeks but was reduced with oral administration of a stable prostacyclin (prostaglandin I (2)) analogue for 5 weeks without any changes of blood glucose levels. CONCLUSIONS Stable prostacyclin analogue administration for a short term period reduced increased TNF-alpha levels in diabetic patients, not through the improved hyperglycemic condition but another pathway, probably a cAMP system. These results imply that treatment with the prostacyclin analogue may contribute to the prevention of progression in diabetic complications.
Databáze: OpenAIRE