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Nickel ions and hypoxia both increased global levels of H3K9m2 [24], [25], [25], a critical mark for gene silencing.
We have previously shown that exposure of the human lung adenocarcinoma A549 cells to NiCl2 for 24 hr significantly increased global levels of trimethylated H3K4 (H3K4me3), a transcriptional activating mark that maps to the promoters of transcribed genes.
Previous studies have shown that overexpression of ING1b can result in increased global levels of acetylated histones H3 and H4 (Vieyra et al, 2002), which are chromatin marks associated with active gene transcription.
Despite the increasing global level efforts to introduce PCVs into developing countries with high burdens of pneumococcal diseases, no published study has provided a detailed assessment on the potential impact of a PCV in an individual, low-income GAVI-eligible country using local data.
The issue regarding the determination of trace elements in airborne particulate have a preeminent position due to the presence of some toxic elements (e.g., Cd, Hg and Pb): further, the airborne particulate matter enters into the climate global change problem, giving place to increasing global levels that may affect widely the biological systems.
Cellular O-GlcNAc levels respond to environmental and nutrient stress in animal cells, and increasing global levels of O-GlcNAc-modified proteins increases stress tolerance and modulate the responsiveness of cells to extracellular signaling [47].
PBIT is cell-active and can inhibit transiently overexpressed KDM5B, thereby increasing global levels of H3K4me3.
Using a different cell line than Xu and colleagues, Lu and colleagues demonstrated that mutations in IDH2, similar to mutations in IDH1, also generated abnormal levels of 2-HG which correlated with increased global methylation levels (Lu et al., 2012).
Reduction of Mt2 led to increased global H3K9me2 levels.
Consistent with published data (Eissenberg et al. 2007; Lee et al. 2007; Secombe et al. 2007; Lloret-Llinares et al. 2008), reduced LID led to increased global H3K4me3 levels.
These results complement previous studies that have demonstrated increased global ascorbate levels in whole leaves exposed to long term high light conditions [ 38, 39, 51- 53] and correlate well with the increase of the overall ascorbate labeling of up to 200% calculated for the whole leaf in this study.
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