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return kwic search for significant out of >500 occurrences
583352 occurrences (No.14 in the rank) during 5 years in the PubMed. [no cache] 500 found

283) Decrease in proliferative function was the most significant in T-cells stimulated with CD3 antigen (up to 84%).

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PMID:23859252 DOI:10.3109/17435390.2013.816798

2015 Nanotoxicology

* Immunotoxicity and genotoxicity testing of PLGA-PEO nanoparticles in human blood cell model.

- A human blood cell model for immunotoxicity and genotoxicity testing was used to measure the response to polylactic-co-glycolic acid (PLGA-PEO) nanoparticle (NP) (0.12, 3, 15 and 75 μg/cm(2) exposure in fresh peripheral whole blood cultures/isolated peripheral blood mononuclear cell cultures from human volunteers (n = 9-13). PLGA-PEO NPs were not toxic up to dose 3 μg/cm(2); dose of 75 μg/cm(2) displays significant decrease in [(3)H]-thymidine incorporation into DNA of proliferating cells after 4 h (70% of control) and 48 h (84%) exposure to NPs. In non-cytotoxic concentrations, in vitro assessment of the immunotoxic effects displayed moderate but significant suppression of proliferative activity of T-lymphocytes and T-dependent B-cell response in cultures stimulated with PWM > CON A, and no changes in PHA cultures. Decrease in proliferative function was the most significant in T-cells stimulated with CD3 antigen (up to 84%). Cytotoxicity of natural killer cells was suppressed moderately (92%) but significantly in middle-dosed cultures (4 h exposure). On the other hand, in low PLGA-PEO NPs dosed cultures, significant stimulation of phagocytic activity of granulocytes (119%) > monocytes (117%) and respiratory burst of phagocytes (122%) was recorded. Genotoxicity assessment revealed no increase in the number of micronucleated binucleated cells and no induction of SBs or oxidised DNA bases in PLGA-PEO-treated cells. To conclude on immuno- and genotoxicity of PLGA-PEO NPs, more experiments with various particle size, charge and composition need to be done.

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(1)67 differences	(15)5 correlations	(29)3 influence	(44)2 dose-dependent
(2)40 increase	(16)5 effects	(30)3 negative	(45)2 elevation
(3)36 difference	(17)5 for	(31)3 number	(46)2 evidence
(4)28 decrease	(18)5 increases	(32)3 roles	(47)2 factors
(5)12 reduction	(19)5 risk	(33)2 (P	(48)2 group
(6)11 predictors	(20)4 effect	(35)2 alterations	(49)2 inhibition
(7)10 association	(21)4 in	(36)2 and	(50)2 interaction
(8)9 improvement	(22)4 reductions	(37)2 at	(51)2 morbidity
(9)8 null	(23)4 relationship	(38)2 between-group	(52)2 positive
(10)7 changes	(24)3 (p	(39)2 blood	(53)2 prediction
(11)7 predictor	(25)3 alteration	(40)2 challenge	(54)2 proportion
(12)7 role	(26)3 as	(41)2 contribution	(55)2 source
(13)6 correlation	(27)3 higher	(42)2 cytotoxic	(56)2 time
(14)5 associations	(28)3 improvements	(43)2 decreases

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--- WordNet output for significant --- =>意義深い, 重大な, 意味のある, 意味ありげな, 重要な Overview of adj significant The adj significant has 4 senses (first 4 from tagged texts) 1. (18) significant, important -- (important in effect or meaning; "a significant change in tax laws"; "a significant change in the Constitution"; "a significant contribution"; "significant details"; "statistically significant") 2. (9) significant, substantial -- (fairly large; "won by a substantial margin") 3. (3) significant -- (too closely correlated to be attributed to chance and therefore indicating a systematic relation; "the interaction effect is significant at the .01 level"; "no significant difference was found") 4. (2) meaning, pregnant, significant -- (rich in significance or implication; "a meaning look") --- WordNet end ---