ELIZA

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298981 occurrences (No.78 in the rank) during 5 years in the PubMed. [no cache] 500 found

90) Freshly excised rat skin and side-by-side permeation cells were used to study the effect of electronic and formulation variables on transdermal iontophoretic delivery of tacrine.

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PMID:24467234 DOI:10.3109/10837450.2013.879886

2015 Pharmaceutical development and technology

* Influence of electronic and formulation variables on transdermal iontophoresis of tacrine hydrochloride.

- Freshly excised rat skin and side-by-side permeation cells were used to study the effect of electronic and formulation variables on transdermal iontophoretic delivery of tacrine. Current strength at 0.1-0.3 mA was observed to be the driving force resulting in tacrine permation flux of 30.3-366.6 μg/cm(2)/h. Depot formation of tacrine and altered skin permeability resulted in post iontophoretic flux even after termination of applied current. Increase in the duration of current application did not show significant difference in tacrine permeation flux upto 6 h. Tacrine permeation was directly proportional to tacrine concentration upto 10 mg/ml but further increase in concentration (upto 20 mg/ml) exhibited permeation flux plateau. Buffer molarity had an inverse relationship on permeation flux and the presence of co-ions in formulation exhibited reduced permeation flux. Permeation flux decreased when pH of formulation was successively increased from 7.0 to 10.0 suggesting electromigration of tacrine. Alternate buffer systems including HEPES and Tris showed improved tacrine permeation due to their larger ion size compared to phosphate buffer ions. The results of this study show that transdermal tacrine permeation can be controlled by electronic and formulation variables which would be useful for the development of transdermal iontophoretic delivery of tacrine for the treatment of Alzehimer's disease.

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(1)28 assess	(20)5 design	(39)3 establish	(58)2 find
(2)28 identify	(21)5 increase	(40)3 observe	(59)2 fit
(3)23 evaluate	(22)5 inform	(41)3 prevent	(60)2 form
(4)20 study	(23)5 obtain	(42)3 solve	(61)2 further
(5)17 estimate	(24)5 quantify	(43)3 validate	(62)2 gain
(6)17 measure	(25)5 reconstruct	(44)2 accurately	(63)2 help
(7)16 determine	(26)4 calculate	(45)2 address	(64)2 improve
(8)16 examine	(27)4 characterize	(46)2 amplify	(65)2 make
(9)12 explore	(28)4 confirm	(47)2 avoid	(66)2 match
(10)10 treat	(29)4 construct	(48)2 be	(67)2 optimize
(11)9 analyze	(30)4 illustrate	(49)2 conduct	(68)2 perform
(12)8 develop	(31)4 reduce	(50)2 create	(69)2 prepare
(13)8 investigate	(32)4 screen	(51)2 demonstrate	(70)2 produce
(14)8 predict	(33)4 simulate	(52)2 derive	(71)2 promote
(15)7 collect	(34)4 verify	(53)2 describe	(72)2 recruit
(16)7 compare	(35)3 classify	(54)2 distinguish	(73)2 represent
(17)7 test	(36)3 compute	(55)2 explain	(74)2 select
(18)6 analyse	(37)3 control	(56)2 extrapolate
(19)6 detect	(38)3 define	(57)2 facilitate

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--- WordNet output for used --- =>1.〜に慣れて, 2.用いられた, 中古の Overview of verb use The verb use has 6 senses (first 3 from tagged texts) 1. (603) use, utilize, utilise, apply, employ -- (put into service; make work or employ for a particular purpose or for its inherent or natural purpose; "use your head!"; "we only use Spanish at home"; "I can't use this tool"; "Apply a magnetic field here"; "This thinking was applied to many projects"; "How do you utilize this tool?"; "I apply this rule to get good results"; "use the plastic bags to store the food"; "He doesn't know how to use a computer") 2. (12) use, habituate -- (take or consume (regularly or habitually); "She uses drugs rarely") 3. (8) use, expend -- (use up, consume fully; "The legislature expended its time on school questions") 4. use -- (seek or achieve an end by using to one's advantage; "She uses her influential friends to get jobs"; "The president's wife used her good connections") 5. practice, apply, use -- (avail oneself to; "apply a principle"; "practice a religion"; "use care when going down the stairs"; "use your common sense"; "practice non-violent resistance") 6. use -- (habitually do something (use only in the past tense); "She used to call her mother every week but now she calls only occasionally"; "I used to get sick when I ate in that dining hall"; "They used to vacation in the Bahamas") Overview of adj used The adj used has 3 senses (first 3 from tagged texts) 1. (4) used -- (employed in accomplishing something; "the principle of surprise is the most used and misused of all the principles of war"- H.H.Arnold & I.C.Eaker) 2. (1) exploited, ill-used, put-upon, used, victimized, victimised -- (of persons; taken advantage of; "after going out of his way to help his friend get the job he felt not appreciated but used") 3. (1) secondhand, used -- (previously used or owned by another; "bought a secondhand (or used) car") --- WordNet end ---