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27) Increased levels of IL-10 combined with decreased level of TNF-α in adolescents living in Stara Zagora can serve as a biomarker for suppression of T helper 1 (Th1) cell-mediated immunity and exacerbation of Th2 humoral immune response and could be a prerequisite for the development of allergic and autoimmune diseases.
* Proinflammatory and anti-inflammatory cytokines in adolescents from Southeast Bulgarian cities with different levels of air pollution.
- Epidemiological studies demonstrated that the exposure of different air pollutants including particulate matter (PM) has been related to adverse effect on immune system. Current study was designed to investigate cytokines in blood plasma of adolescent persons continuously exposed to different degrees of ambient air pollutions. Tumor necrosis factor-α (TNF-α), interleukin 6 (IL-6), IL-12p40, and IL-10 were chosen as cytokines of proinflammatory and anti-inflammatory immune response. The peripheral venous blood was taken from adolescents living in the cities of Stara Zagora region, Southeast Bulgaria, that is, in Stara Zagora, Kazanlak, and Chirpan. The quantity of cytokines in plasma samples was determined by enzyme-linked immunosorbent assay. Results demonstrated that youths living in Stara Zagora showed significantly smaller quantity of TNF-α, compared with adolescents from Kazanlak and Chirpan. Moreover, adolescents living in Stara Zagora showed significantly higher quantity of IL-10 than students from Kazanlak and Chirpan. Analysis of the data of air quality gives reason to assert that PM10 and PM2.5 have been the main atmospheric pollutants around the monitoring points. The complex air quality assessment based on these criteria determined that the highest air pollution was in the city of Stara Zagora, followed by Chirpan and the relatively unpolluted town was Kazanlak. We concluded that air pollutants, mostly PM2.5, can modulate cytokine production and can change the balance between proinflammatory TNF-α and anti-inflammatory IL-10 production. Increased levels of IL-10 combined with decreased level of TNF-α in adolescents living in Stara Zagora can serve as a biomarker for suppression of T helper 1 (Th1) cell-mediated immunity and exacerbation of Th2 humoral immune response and could be a prerequisite for the development of allergic and autoimmune diseases.
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 ---