The phrase "also the expression level of" is correct and usable in written English.
It can be used in scientific or technical contexts, particularly in discussions about gene expression, protein levels, or similar topics.
Example: "The study aimed to investigate the effects of the drug on cellular metabolism, focusing on also the expression level of key enzymes involved in the process."
Alternatives: "as well as the expression level of" or "in addition to the expression level of".
Thus, it can be seen from the analysis of the sub-clusters that not only Id2 is differentially expressed but also Gata4; this suggests that not only Id2 but also the expression level of Gata4 at the 16-cell stage could indicate whether a cell is more likely to become a TE cell or an ICM cell.
Also, the expression level of TGF-β1 in the wound treated with silk fibroin nanomatrix peaked 21-days post-treatment whereas expression level of TGF-β1 was highest at day 7 in the gauze treated group.
Interestingly, like eugenol, E2F1 down-regulation by specific shRNA reduced also the expression level of the survivin mRNA and protein.
Also, the expression level of specific horse genes with a putative role in tumourigenesis, can be investigated.
Not only inhibition of a specific tyrosine kinase, but also the expression level of a kinase and the number of potential parallel pathways (other kinases) determine the downstream biological efficacy of a tyrosine kinase inhibitor.
To ensure that water stress was the most important stress in the greenhouse, we monitored also the expression level of two genes (Lp3-3 in 2009 and PrAGP4, 2008 and 2009) known to be involved in the drought stress response of maritime pine [ 17, 18].
Additionally, also the expression levels of the non-targeted non-structural B19V-NS1 mRNA were strongly reduced.
Also, the expression levels of both rice CKX1 and CKX3 were similar to that of WT (Additional file 5: Figure S5B).
Also, the expression levels of p53, p21, cyclin D1, CDK4 and PCNA in AA SFs were detected by real-time PCR and western blotting assays.
Also, the expression levels of HMA1 were highly regulated by Pb, Zn, Co, and Cd.
Also, the expression levels of these genes were found to decrease in animal models of Parkinson's disease [ 31].
