The phrase "a complex regulation that" is correct and usable in written English.
You can use it when referring to a specific regulation that has multiple components or intricacies.
Example: "The committee is currently reviewing a complex regulation that governs environmental standards for industrial waste management."
Alternatives: "a complicated rule that" or "an intricate regulation that".
In general, the IFNα/β response has a complex regulation that involves positive and negative feed-back mechanisms, some of which are still unknown.
Unusually, cldn-4 protein increased up to 4-fold at the 4th day after confluence, while its mRNA levels remained stable, suggesting a complex regulation that should be given at different levels.
As we shall show here, the detectable proteome displays distinct differences from the transcriptome, thus suggesting a more complex regulation that was anticipated from the transcriptomic studies.
These globins are also induced under normoxia in hif-1 mutants (Fig. 7), suggesting a more complex regulation that is able to compensate for the loss of hif-1 function.
It suggests an unforeseen complex regulation that may play a major role in controlling p53 activity.
Germination is a phenomenon with complex regulation that is a balance between the release of dormancy and the promotion of germination.
The inducible form of cyclooxygenase, COX-2, is an immediate-early response gene with complex regulation that plays an essential role in vascular homeostasis and inflammation.
Controlling the production of increased quantities of Xist RNA molecules is, therefore, an essential event in the complex regulation that leads to the inactivation of a single X chromosome in females and the absence of X-inactivation in males.
The lack of effect on periostin levels may reflect its more complex regulation that also involves HIF-2α (Fig 4E).
The products catalyzed by eNOS are subject to complex regulation that we are just now beginning to understand.
Despite the proven bioactivity of triphenylmethane derivatives, direct BG activation οf β-arrestin appeared unlikely given the historical absence of direct small molecule β-arrestin activators and the complex regulation that β-arrestins undergo with receptors; and indeed our findings could simply be a direct consequence of identifying a new, albeit remarkable, small molecule agonist for the NTR1.
