ELIZA

return kwic search for specific out of >500 occurrences
279736 occurrences (No.90 in the rank) during 5 years in the PubMed. [cache]

214) Parameter estimation in complex models is a challenging task associated with many methodological issues which are discussed here with specific recommendations.

--- ABSTRACT ---

PMID:24033787 DOI:10.1111/bcp.12234

2015 British journal of clinical pharmacology

* Combining the 'bottom up' and 'top down' approaches in pharmacokinetic modelling: fitting PBPK models to observed clinical data.

- Pharmacokinetic models range from being entirely exploratory and empirical, to semi-mechanistic and ultimately complex physiologically based pharmacokinetic (PBPK) models. This choice is conditional on the modelling purpose as well as the amount and quality of the available data. The main advantage of PBPK models is that they can be used to extrapolate outside the studied population and experimental conditions. The trade-off for this advantage is a complex system of differential equations with a considerable number of model parameters. When these parameters cannot be informed from in vitro or in silico experiments they are usually optimized with respect to observed clinical data. Parameter estimation in complex models is a challenging task associated with many methodological issues which are discussed here with specific recommendations. Concepts such as structural and practical identifiability are described with regards to PBPK modelling and the value of experimental design and sensitivity analyses is sketched out. Parameter estimation approaches are discussed, while we also highlight the importance of not neglecting the covariance structure between model parameters and the uncertainty and population variability that is associated with them. Finally the possibility of using model order reduction techniques and minimal semi-mechanistic models that retain the physiological-mechanistic nature only in the parts of the model which are relevant to the desired modelling purpose is emphasized. Careful attention to all the above issues allows us to integrate successfully information from in vitro or in silico experiments together with information deriving from observed clinical data and develop mechanistically sound models with clinical relevance.

--- ABSTRACT END ---

[
right
kwic]

[frequency of next (right) word to specific]

(1)15 to	(19)4 types	(37)2 attention	(55)2 lineages
(2)9 sequence	(20)3 characteristics	(38)2 barriers	(56)2 measures
(3)7 and	(21)3 features	(39)2 computational	(57)2 miRNAs
(4)7 cell	(22)3 job	(40)2 constitutive	(58)2 molecular
(5)7 variations	(23)3 target	(41)2 criteria	(59)2 neuronal
(6)6 cognitive	(24)3 tendon	(42)2 deficits	(60)2 or
(7)6 genes	(25)3 therapy	(43)2 differences	(61)2 parameters
(8)6 surface	(26)3 type	(44)2 divergence	(62)2 phytotoxicity
(9)5 antibodies	(27)3 variation	(45)2 effect	(63)2 polymerase
(10)5 for	(28)2 null	(46)2 elements	(64)2 primers
(11)5 phobias	(29)2 ECM	(47)2 ethnocultural	(65)2 protein
(12)4 brain	(30)2 IgG	(48)2 extracellular	(66)2 proteins
(13)4 effects	(31)2 PCR	(49)2 fault	(67)2 recommendations
(14)4 growth	(32)2 age-dependent	(50)2 function	(68)2 requirements
(15)4 incidence	(33)2 analysis	(51)2 genetic	(69)2 self-efficacy
(16)4 manner	(34)2 antigen	(52)2 genomic	(70)2 targeted
(17)4 motor	(35)2 antigens	(53)2 information	(71)2 tests
(18)4 needs	(36)2 approach	(54)2 inhibitors

add keyword

--- WordNet output for specific --- =>特有の, 特効薬, 明確な, 特定の, 種の, はっきりした Overview of noun specific The noun specific has 2 senses (no senses from tagged texts) 1. particular, specific -- (a fact about some part (as opposed to general); "he always reasons from the particular to the general") 2. specific -- (a medicine that has a mitigating effect on a specific disease; "quinine is a specific for malaria") Overview of adj specific The adj specific has 4 senses (first 2 from tagged texts) 1. (39) specific -- ((sometimes followed by `to') applying to or characterized by or distinguishing something particular or special or unique; "rules with specific application"; "demands specific to the job"; "a specific and detailed account of the accident") 2. (5) specific -- (stated explicitly or in detail; "needed a specific amount") 3. specific -- (relating to or distinguishing or constituting a taxonomic species; "specific characters") 4. specific -- (being or affecting a disease produced by a particular microorganism or condition; used also of stains or dyes used in making microscope slides; "quinine is highly specific for malaria"; "a specific remedy"; "a specific stain is one having a specific affinity for particular structural elements") --- WordNet end ---