The phrase "altering the levels of" is correct and usable in written English.
It can be used when discussing changes in quantities, intensities, or degrees of something, such as in scientific, technical, or analytical contexts.
Example: "The researchers focused on altering the levels of carbon dioxide in the controlled environment to study its effects on plant growth."
Alternatives: "modifying the amounts of" or "adjusting the degrees of".
Existing chemical contraceptives for men under development are based on altering the levels of sex hormones circulating in the bloodstream in order to inhibit the natural state of male hyper-fertility.
Administration of l-tryptophan significantly decreased the RE-induced esophageal mucosal damage, without altering the levels of melatonin.
There is also a suggestion that large quantities of chocolate could raise insulin levels in the bloodstream, altering the levels of some hormones, again leading to an increase in sebum production.
Giurgea's piracetam, for example, can improve the memory of users by altering the levels of the neurotransmitter acetylcholine, which, in turn, affects the plasticity of synapses in the brain (the extent to which entire brain structures, and the brain itself, can change from experiences).
Nevertheless, we observe that altering the levels of BMP signaling is sufficient to modify Wg target gene expression.
Therefore, by differentially altering the levels of aPKC we find that aPKC performs multiple functions in cell polarity.
We show that this man-made protein disrupts the normal energetic balance of the cell by altering the levels of intracellular ATP.
This is especially significant since our genetic manipulations were not aimed at altering the levels of VEGF or its receptors, VEGFR1 and VEGFR2 expressed in the glomerular endothelium.
Furthermore, each siRNA inhibited the specific kinase without altering the levels of JNK I, JNK II, or p38 respectively (Figure 4C).
Although our data suggested that hematopoietic stem cells are essential in rescuing these mice from lethal irradiation (Fig. 3D), it is possible that AMD3100 enhances hematological recovery by altering the levels of cytokines/chemokines in marrow microenvironment.
Herein, we explore whether altering the levels of cyclin A2 in K562 cells using RNAi delivered by SWNTs can influence cell apoptosis and differentiation induced by chemotherapeutic agent DOX.
