The phrase "activated by an increase" is correct and usable in written English.
It can be used in contexts where a process, system, or mechanism is triggered or initiated due to an increase in a certain variable or factor.
Example: "The sensor is activated by an increase in temperature, allowing the system to respond accordingly."
Alternatives: "triggered by a rise" or "initiated by an increase".
One of the advantages of using p94 is that Ca2+ stimulation is not necessary for its activation; the conventional calpains have to be activated by an increase of [Ca2+]i concentrations provoked by molecules such as Ca2+ ionophores, the presence of which affects the entire cell.
In the present study, we report that frog parathyroid cells possess Ca2+-activated Cl− channels and that these channels can be activated by an increase of [Ca2+]i through the mediation of the arachidonic acid cascade.
In nontransformed cells, AMP-activated protein kinase (AMPK) acts as an intracellular energy sensor that is activated by an increase in cellular AMP levels.
AMPK is allosterically activated by an increase in the cellular AMP ATP ratio which also promotes covalent activation of AMPK (at α-Thr in the activation loop of the catalytic subunit) by upstream AMPKs because binding of AMP to the kinase γ-subunit renders the α-Thr phosphorylation site a poorer substrate for protein phosphatases.
Previous evidence has shown that p70S6K was activated by an increase in ROS.
Thus far, it has been shown that the eggs of almost all species are activated by an increase in Ca2+ oscillation by spermatozoa during fertilization [ 81, 82].
Mammalian AMPK acts as an energy sensing kinase that is activated by an increasing AMP/ATP ratio and by metabolic alterations, such as hypoxia, glucose deprivation, decreased ATP production, or increased energy consumption.
AMPK is activated by an increased AMP/ATP ratio and is responsible for shifting cells to OXPHOS and inhibiting cell proliferation [37].
These studies showed that astrocytes can be activated by an increased IOP [ 14, 15].
The simplest circuit breakers are operated by a solenoid that is activated by an excessive increase in current flow.
NPQ is the most important short-term "safety valve" that is activated by a sudden increase in irradiance, and can be measured by a decrease in chlorophyll a (Chl a) fluorescence intensity under HL [8].
