English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The exposures of the World Trade Center (WTC) dust of the September 11, 2001 tragedy are linked to increased respiratory problems and emergence of World Trade Center Cough. Zinc (Zn) and Lead (Pb) are among the many heavy metals found in WTC dust. Synergistic effects among several chemicals might be contributing to respiratory illness. The individual toxicity, and combination treatments of Pb and Zn at a particular ratio of concentration (1:10) typical to Market Streets were carried out on MRC-5 human lung cells. Cells were treated as both physiologically stressed (2.5% Fetal bovine serum, {FBS}) and unstressed (10% FBS) condition in vitro. Triplex assays indicated that Pb and Zn do show antagonistic effects with each other. The combination treatments of both Pb and Zn reduced high individual toxicity of either alone, in both stressed and unstressed cells. In summary, Pb, which is known to be highly damaging to human lung cells is modified by the presence of Zn. It can be possible that Zn is a reward in disguise to WTC victims. Without unusual levels of Zn, Pb might be much more damaging to those exposed to WTC dust.

Comparison of World Trade Center dust with zinc acetate and lead oxide combinations to determine damage to human lung cells