ELIZA cgi-bash version rev. 1.90
- Medical English LInking keywords finder for the PubMed Zipped Archive (ELIZA) -
return
kwic search for levels out of >500 occurrences
501283 occurrences (No.27 in the rank) during 5 years in the PubMed. [no cache]
500 found
17) In the acute and sublethal experiments, the herbicide accumulated in the brain was inversely proportional to the levels of DA and NE and the activity of AChE but has a direct correlation with the concentration of ACh.
* Bioaccumulation and neurotoxicity of dithiopyridine herbicide in the brain of freshwater fish, Cyprinus carpio.
- The freshwater carp, Cyprinus carpio, was exposed to 0.5 mg (30% of median lethal concentration (LC50)), 1.0 mg (60% of LC50), and 1.6 mg (LC50) of dithiopyridine herbicide per liter for acute (24 h) and 1/10 of LC50 (0.2 mg/L/day) for sublethal (1, 3, 7, 14, and 21 days) experiments. The herbicide bioaccumulation was significantly affected by the acute exposure levels and the experimental periods and was positively correlated with them. One-way analysis of variance revealed that the acute and sublethal exposure to the herbicide as well as the experimental periods caused significant reduction in the concentrations of catecholamines (dopamine (DA) and norepinephrine (NE)), elevation of acetylcholine (ACh), and was associated with a marked decrease in the activity of acetylcholinesterase (AChE). In comparison with the corresponding controls, most levels of the DA and NE and the activity of AChE were significantly decreased, whereas the concentration of ACh was markedly elevated, during acute and sublethal exposure. In the acute and sublethal experiments, the herbicide accumulated in the brain was inversely proportional to the levels of DA and NE and the activity of AChE but has a direct correlation with the concentration of ACh. In addition, the brain's AChE activity was negatively correlated with ACh content during the acute (r = -0.94) and sublethal (r = -0.78) experiments.
Overview of noun level
The noun level has 8 senses (first 6 from tagged texts)
1. (69) degree, grade, level -- (a position on a scale of intensity or amount or quality; "a
moderate grade of intelligence"; "a high level of care is required"; "it is all a matter of degree")
2. (22) grade, level, tier -- (a relative position or degree of value in a graded group; "lumber of
the highest grade")
3. (15) degree, level, stage, point -- (a specific identifiable position in a continuum or series or
especially in a process; "a remarkable degree of frankness"; "at what stage are the social
sciences?")
4. (5) level -- (height above ground; "the water reached ankle level"; "the pictures were at the
same level")
5. (1) level, spirit level -- (indicator that establishes the horizontal when a bubble is centered
in a tube of liquid)
6. (1) horizontal surface, level -- (a flat surface at right angles to a plumb line; "park the car
on the level")
7. level, layer, stratum -- (an abstract place usually conceived as having depth; "a good actor
communicates on several levels"; "a simile has at least two layers of meaning"; "the mind functions
on many strata simultaneously")
8. floor, level, storey, story -- (a structure consisting of a room or set of rooms at a single
position along a vertical scale; "what level is the office on?")
Overview of verb level
The verb level has 6 senses (first 3 from tagged texts)
1. (4) level -- (aim at; "level criticism or charges at somebody")
2. (1) level, raze, rase, dismantle, tear down, take down, pull down -- (tear down so as to make
flat with the ground; "The building was levelled")
3. (1) flush, level, even out, even -- (make level or straight; "level the ground")
4. charge, level, point -- (direct into a position for use; "point a gun"; "He charged his weapon at
me")
5. level -- (talk frankly with; lay it on the line; "I have to level with you")
6. level, level off -- (become level or even; "The ground levelled off")
--- WordNet end ---