Not only variation in host resistance explains differences in the effectiveness of the parasitic gland secretion but also interpopulational differences in its chemical composition, which were revealed by gas chromatography and mass spectrometry.”
“L-3,4-Dihydroxyphenylalanine (L-DOPA) is the most effective treatment for Parkinson’s disease, but chronic administration is complicated by the development of dyskinesia. We have previously demonstrated that the dopamine D-4 receptor antagonist L-745,870 reduces the severity of L-DOPA-induced dyskinesia in the 1-methyl4- phenyl-1,2,3,6-tetrahydropyridine (MPTP)-lesioned macaque without compromising
L-DOPA antiparkinsonian benefits. In the current study, we have addressed the effects of L-745,870 on the expression of L-DOPA-induced abnormal involuntary movements (AIMs) in the 6-hydroxydopamine-lesioned rat. Selleck SCH 900776 Rats were primed with repeated L-DOPA administration, after which acute challenges of L-DOPA/ L-745,870 (vehicle, 0.1, 0.3 and 1 mg/kg) were administered, and AIMs were assessed. Rotarod performance and AIMs were assessed. In L-DOPA-primed rats, L-745,870 (1 mg/kg, but not lower doses) alleviated previously established AIMs (by 84%, P smaller than 0.001). Whereas rotarod performance was significantly improved by L-DOPA/vehicle treatment, L-DOPA/
L-745,870 failed to improve rotarod performance (P bigger than 0.05), suggesting that, in contrast to the MPTP-lesioned macaque, L-745,870 reduces L-DOPA antiparkinsonian benefit in the rat model. Overall, these data suggest that L-745,870 selleck inhibitor may have a narrow therapeutic window as an antidyskinetic agent in advanced
Parkinson’s disease. Copyright (C) 2015 Wolters Kluwer Health, Inc. All rights reserved.”
“BACKGROUND: Dexmedetomidine, because it has both sedative and analgesic properties, may be suitable for conscious sedation during painful procedures. Extracor-Poreal shockwave lithotripsy (ESWL) is a minimal to mildly painful procedure that requires conscious sedation. We thus evaluated the utility of dexmedetomidine GS-9973 compared with propofol during an ESWL procedure.\n\nMETHODS: Forty-six patients were randomly allocated into two groups to receive either dexmedetomidine or propofol for elective ESWL. Dexmedetomidine was infused at 6 mu g center dot kg(-1) center dot h(-1) for 10 min followed by an infusion rate of 0.2 mu g center dot kg(-1) center dot h(-1). Propofol was infused at 6 mg center dot kg(-1) center dot h(-1) for 10 min followed by an infusion of 2.4 mg center dot kg(-1) center dot h(-1). Fentanyl 1 mu g/kg IV was given to all patients 10 min before ESWL. Pain intensity was evaluated with a visual analog scale at 5-min intervals during ESWL (10-35 min). Sedation was determined using the Observer’s Assessment of Alertness/Sedation.