ELIZA

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270181 occurrences (No.97 in the rank) during 5 years in the PubMed. [no cache] 500 found

167) In vitro evaluation demonstrated a sustained release pattern accounting for 20% drug release compared to that of OP solution up to 90% drug release in 2 h.

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PMID:24299495 DOI:10.3109/10717544.2013.863526

2015 Drug delivery

* Development and evaluation of a dry powder formulation of liposome-encapsulated oseltamivir phosphate for inhalation.

- This study aims to develop oseltamivir phosphate (OP) liposomes as inhalation powders by spray-drying based on the single factor investigation, which was mainly composed of lactose, L-leucine and mannitol. It was found that the ratio of OP and liposomes (1:10), inlet temperature (110 °C) and airflow rate (2.3 mL/min) showed optimized physical properties of OP liposomes. Deposition was evaluated after the aerosolization of powders at 600 L/h via the Aerolizer® into a twin-stage impinger. The concentrations of OP and oseltamivir carboxylate (OSCA) in rats plasma using LC-MS have been determined and performed via pharmacokinetic software DAS 2.0 package. The liposomal OP dry powders displayed an average particle size around 3.5 µm with fine particle fraction (FPF = 35.40%). In vitro evaluation demonstrated a sustained release pattern accounting for 20% drug release compared to that of OP solution up to 90% drug release in 2 h. And the cumulative release percentage was up to 50% in 20 h. Atrioventricular fitting results indicated that all preparations were best fitted with a two-compartment model. There was a significant difference in MRT, Cmax and Tmax (p < 0.01) between the two groups of liposomal OP dry powders and OP solution with t-test, which indicated that the drug released slowly from liposomal OP dry powders in the lung. To sum up, dry powders formulation of liposome-encapsulated OP for inhalation was suitable for pulmonary administration, which offering the opportunity to reduce dosing frequency.

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(1)105 the	(10)6 conventional	(19)3 group	(28)2 groups
(2)23 those	(11)5 controls,	(20)3 pure	(29)2 its
(3)19 control	(12)5 placebo	(21)2 TCDD	(30)2 long
(4)14 a	(13)5 untreated	(22)2 age-matched	(31)2 non-Hispanic
(5)12 that	(14)4 Exo(Normoxic)	(23)2 baseline	(32)2 non-transgenic
(6)10 controls	(15)4 all	(24)2 bur-prepared	(33)2 people
(7)10 other	(16)4 patients	(25)2 children	(34)2 plain
(8)9 healthy	(17)3 an	(26)2 controls),	(35)2 previous
(9)9 their	(18)3 drug	(27)2 experimental	(36)2 vehicle

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--- WordNet output for compared --- =>前年同期比で(は) Overview of verb compare The verb compare has 4 senses (first 3 from tagged texts) 1. (57) compare -- (examine and note the similarities or differences of; "John compared his haircut to his friend's"; "We compared notes after we had both seen the movie") 2. (12) compare -- (be comparable; "This car does not compare with our line of Mercedes") 3. (9) compare, liken, equate -- (consider or describe as similar, equal, or analogous; "We can compare the Han dynasty to the Romans"; "You cannot equate success in financial matters with greed") 4. compare -- (to form the comparative or superlative form on an adjective or adverb) --- WordNet end ---