ELIZA

return kwic search for present out of >500 occurrences
505151 occurrences (No.26 in the rank) during 5 years in the PubMed. [no cache] 500 found

224) Thus, according to the results of the present study, the SWCNTs were not found to have a genotoxic effect on the in vitro and in vivo test systems.

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PMID:23552264 DOI:10.1177/0748233713483201

2015 Toxicology and industrial health

* Evaluation of in vitro and in vivo genotoxicity of single-walled carbon nanotubes.

- Single-walled carbon nanotubes (SWCNTs) have extensive potential industrial applications due to their unique physical and chemical properties; yet this also increases the chance of human and environment exposure to SWCNTs. Due to the current lack of hazardous effect information on SWNCTs, a standardized genotoxicity battery test was conducted to clarify the genetic toxicity potential of SWCNTs (diameter: 1-1.2 nm, length: ∼20 μm) according to Organization for Economic Cooperation and Development test guidelines 471 (bacterial reverse mutation test), 473 (in vitro chromosome aberration test), and 474 (in vivo micronuclei test) with a good laboratory practice system. The test results showed that the SWCNTs did not induce significant bacterial reverse mutations at 31.3-500 μg/plate in Salmonella typhimurium strains TA98, TA100, TA1535, and TA1537 or in Escherichia coli strain WP2uvrA, with and without a metabolic activation system. Furthermore, the in vitro chromosome aberration test showed no significant increase in structural or numerical chromosome aberration frequencies at SWCNT dose levels of 12.5-50 μg/ml in the presence and absence of metabolic activation. However, dose-dependent cell growth inhibition was found at all the SWCNT dose levels and statistically significant cytotoxic effects observed at certain concentrations in the presence and absence of metabolic activation. Finally, the SWCNTs did not evoke significant in vivo micronuclei frequencies in the polychromatic erythrocytes of an imprinting control region mice at 25-100 mg/kg. Thus, according to the results of the present study, the SWCNTs were not found to have a genotoxic effect on the in vitro and in vivo test systems.

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[frequency of next (right) word to present]

(1)151 study	(10)8 review	(19)3 findings	(28)2 only
(2)60 a	(11)7 investigation	(20)3 on	(29)2 paper,
(3)37 study,	(12)6 an	(21)3 our	(30)2 report,
(4)36 in	(13)6 case	(22)3 research	(31)2 studies
(5)21 the	(14)5 article	(23)2 as	(32)2 this
(6)10 results	(15)5 data	(24)2 between	(33)2 to
(7)9 null	(16)4 and	(25)2 case,	(34)2 work
(8)9 with	(17)4 here	(26)2 either
(9)8 at	(18)4 two	(27)2 more

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--- WordNet output for present --- =>出席している, そこにある, 現在の, 今の, 当面の, いあわせている, 考慮している, 現在, を人に贈る, 進呈する, を与える, を渡す, を紹介する, を公開する, を見せる, 示す, 贈り物, 【文法】現在時制の, プレゼント, 贈る, ある, 現在形の Overview of noun present The noun present has 3 senses (first 2 from tagged texts) 1. (17) present, nowadays -- (the period of time that is happening now; any continuous stretch of time including the moment of speech; "that is enough for the present"; "he lives in the present with no thought of tomorrow") 2. (4) present -- (something presented as a gift; "his tie was a present from his wife") 3. present, present tense -- (a verb tense that expresses actions or states at the time of speaking) Overview of verb present The verb present has 13 senses (first 10 from tagged texts) 1. (40) show, demo, exhibit, present, demonstrate -- (give an exhibition of to an interested audience; "She shows her dogs frequently"; "We will demo the new software in Washington") 2. (28) present, represent, lay out -- (bring forward and present to the mind; "We presented the arguments to him"; "We cannot represent this knowledge to our formal reason") 3. (14) stage, present, represent -- (perform (a play), especially on a stage; "we are going to stage `Othello'") 4. (13) present, submit -- (hand over formally) 5. (7) present, pose -- (introduce; "This poses an interesting question") 6. (3) award, present -- (give, especially as an honor or reward; "bestow honors and prizes at graduation") 7. (3) give, gift, present -- (give as a present; make a gift of; "What will you give her for her birthday?") 8. (3) deliver, present -- (deliver (a speech, oration, or idea); "The commencement speaker presented a forceful speech that impressed the students") 9. (2) introduce, present, acquaint -- (cause to come to know personally; "permit me to acquaint you with my son"; "introduce the new neighbors to the community") 10. (1) portray, present -- (represent abstractly, for example in a painting, drawing, or sculpture; "The father is portrayed as a good-looking man in this painting") 11. confront, face, present -- (present somebody with something, usually to accuse or criticize; "We confronted him with the evidence"; "He was faced with all the evidence and could no longer deny his actions"; "An enormous dilemma faces us") 12. present -- (formally present a debutante, a representative of a country, etc.) 13. salute, present -- (recognize with a gesture prescribed by a military regulation; assume a prescribed position; "When the officers show up, the soldiers have to salute") Overview of adj present The adj present has 2 senses (first 2 from tagged texts) 1. (60) present -- (temporal sense; intermediate between past and future; now existing or happening or in consideration; "the present leader"; "articles for present use"; "the present topic"; "the present system"; "present observations") 2. (39) present -- (being or existing in a specified place; "the murderer is present in this room"; "present at the wedding"; "present at the creation") --- WordNet end ---