The phrase "a decrease in protein" is correct and usable in written English.
It can be used in contexts discussing nutrition, biology, or health, particularly when referring to a reduction in protein levels or intake.
Example: "The study found a significant decrease in protein levels in the subjects after the diet change."
Alternatives: "a reduction in protein" or "a drop in protein".
"The paper also reports a decrease in protein, nitrates and fibre in the organically grown crops, which may be undesirable, and which are maybe unsurprisingly not referred to by the authors in their advocacy of organically grown produce".
Therefore a decrease in protein thiols e.g. through oxidation should give rise to an increase in de novo GSH synthesis so that cellular redox state is restored.
Occurrence of this effect may be due to a decrease in protein solubility as a result of the addition of NaCl [2].
Furthermore, a decrease in protein and DNA oxidative damage was observed on cells grown on the roughed surface when compared to the smooth one.
However, several studies demonstrated a decrease in protein bioactivity or an increase in the presence of specific antibodies post PEGylation, highlighting the importance of an alternative strategy.
Namely, a decrease in protein content drastically affected the mechanical response of the networks to compression by shifting the onset of stiffening to higher degrees of compression.
The fluorescence studies demonstrated that dendrimers lead to a decrease in protein fluorescence but changes in fluorescence anisotropy were not observed.
Induction of oxidative stress in fish liver was revealed by the formation of malondialdehyde and advanced oxidation protein products, as well as a decrease in protein thiol groups and reduced glutathione levels.
The decrease in CO2 assimilation in N-deficient leaves can not be attributed to a decrease in protein contents, because the decrease in leaf total soluble protein (Fig. 2A) contents was much less than CO2 assimilation.
This result indicates that H164 is not directly involved in heme binding, but rather suggests only a decrease in protein stability and a loss of the heme-binding affinity (Faraco et al. 2007).
In patients without AKI a decrease in protein, albumin and IgG concentrations was observed during recompensation compared between the different sampling time points and day 1 (each p < 0.05).
