Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Nasal absorption of (S)-UH-301 and its transport into the cerebrospinal fluid of rats
Autore:
Dahlin, M; Bjork, E;
Indirizzi:
Uppsala Univ, Ctr Biomed, Div Pharmaceut, Dept Pharm, SE-75123 Uppsala, Sweden Uppsala Univ Uppsala Sweden SE-75123 ept Pharm, SE-75123 Uppsala, Sweden
Titolo Testata:
INTERNATIONAL JOURNAL OF PHARMACEUTICS
fascicolo: 1-2, volume: 195, anno: 2000,
pagine: 197 - 205
SICI:
0378-5173(20000215)195:1-2<197:NAO(AI>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTRANASAL DRUG-DELIVERY; CENTRAL-NERVOUS-SYSTEM; OLFACTORY PATHWAY; BRAIN; CAVITY; ROUTE; MORPHOLOGY; EPITHELIUM; INSULIN; MONKEYS;
Keywords:
nasal administration; 5-HT-1a receptor antagonist; rat; olfactory pathway; cerebrospinal fluid (CSF); brain targeting;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Bjork, E Uppsala Univ, Ctr Biomed, Div Pharmaceut, Dept Pharm, Box 580, SE-75123 Uppsala, Sweden Uppsala Univ Box 580 Uppsala Sweden SE-75123 123 Uppsala, Sweden
Citazione:
M. Dahlin e E. Bjork, "Nasal absorption of (S)-UH-301 and its transport into the cerebrospinal fluid of rats", INT J PHARM, 195(1-2), 2000, pp. 197-205

Abstract

Targeting the brain via nasal administration of drugs has been studied frequently over the last few years. In this study, the serotonin-1a receptor antagonist (S)-5-fluoro-8-hydroxy-2-(dipropyl-amino) tetralin ((S)-UH-301) hydrochloride was used as a model substance. The systemic absorption and transport of (S)-UH-301 into male Sprague-Dawley rat cerebrospinal fluid (CSF)were investigated after nasal and intravenous administration. Blood and CSF samples were obtained at regular time intervals from the arteria carotis and by cisternal puncture, respectively, after administration to both nostrils (total 12 mu mol/kg) or into the vena jugularis (6 mu mol/kg). The concentrations of (S)-UH-301 in plasma and CSF were measured by HPLC with electrochemical detection. The maximum plasma concentration of intranasal (S)-UH-301 occurred in about 7 mill and the absolute bioavailability seemed to becomplete (F = 1.2 +/- 0.4), Initially, no increased concentrations of (S)-UH-301 were seen in CSF after nasal compared to intravenous administration i.e. it appeared that no direct transport of(S)-UH-301 from the nasal cavity, along the olfactory neurons and into the CSF occurred. However, a prolonged duration of the concentration was seen after nasal administration of (S)-UH-301 and after about 20 min the CSFna:CSFiv concentration ratio (corrected for different dosage) exceeded 1. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/01/20 alle ore 22:07:05