title: Effects of a single drip infusion of lipo-prostaglandin E1 on vibratory threshold in patients with diabetic neuropathy.
abstract: We evaluated acute effects of prostaglandin E1 encapsulated in lipid microspheres (lipo-PGE1), in 14 type 2 diabetic patients with neuropathy. Nerve conduction velocity (NCV), vibratory threshold (VT), skin temperature and subjective symptoms were evaluated for 24 hours after a single drip infusion of lipo-PGE1. In 6 of the 14 patients, the decrease in VT (P < 0.05) more than 50% measured by an SMV-5 vibrometer was observed at 6 hours after the infusion (responders). Subjective symptoms were improved (P < 0.05) in 5 of the 6 responders, whereas it improved in only 1 of the 8 patients who had no change in VT (nonresponders). NCV did not change (P > 0.05) either in the responders or in the nonresponders by the infusion. The responders had less impairment in VT and milder retinopathy and nephropathy than the nonresponders (P < 0.05). Our results demonstrate that vibratory sensation and subjective symptoms can be improved by a single infusion of lipo-PGE1 in type 2 diabetic patients with mild neuropathy.
authors.affiliation: Third Department of Internal Medicine, University of Yamanashi Medical School, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Tawata
authors.forename: K
authors.initials: K
authors.lastname: Nitta
authors.forename: A
authors.initials: A
authors.lastname: Kurihara
authors.forename: T
authors.initials: T
authors.lastname: Nagasaka
authors.forename: E
authors.initials: E
authors.lastname: Iwase
authors.forename: N
authors.initials: N
authors.lastname: Gan
authors.forename: M
authors.initials: M
authors.lastname: Inoue
authors.forename: T
authors.initials: T
authors.lastname: Onaya
mesh_terms: D000328:Adult; D000368:Aged; D000527:Alprostadil / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology*; D001786:Blood Glucose / Q000032:analysis / Q000187:drug effects; D003924:Diabetes Mellitus, Type 2 / Q000150:complications* / Q000188:drug therapy* / Q000209:etiology; D003929:Diabetic Neuropathies / Q000150:complications / Q000188:drug therapy* / Q000503:physiopathology; D004337:Drug Carriers; D005260:Female; D006801:Humans; D007262:Infusions, Intravenous; D008081:Liposomes; D008297:Male; D008875:Middle Aged; D009431:Neural Conduction / Q000187:drug effects / Q000502:physiology; D012684:Sensory Thresholds / Q000187:drug effects*; D012881:Skin Temperature / Q000187:drug effects; D013997:Time Factors; D014732:Vibration
chemical_list: D001786:Blood Glucose; D004337:Drug Carriers; D008081:Liposomes; D000527:Alprostadil